diff --git a/Makefile b/Makefile
index 9c64378c..add83b79 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ PYTHON ?= python3
 LOCAL_SKILL_INSTALL_DIR ?= $(HOME)/.agents/skills.disabled/yao-meta-skill
 ACTIVE_SKILL_INSTALL_DIR ?= $(HOME)/.agents/skills/yao-meta-skill
 
-.PHONY: eval eval-suite route-scorecard route-confusion-check description-optimization judge-blind-eval description-optimization-check promotion-check python-compat-check yao-cli-check skill-overview-check skill-report-metrics-check skill-report-charts-check skill-ir-check compiler-check output-eval-check output-execution-check output-review-adjudication-check runtime-conformance-check runtime-permission-check trust-check skill-atlas-check registry-audit-check package-verify-check install-simulation-check upgrade-check review-viewer-check review-studio-check skill-os2-audit-check skill-os2-coverage-check world-class-evidence-check world-class-ledger-check world-class-intake-check world-class-claim-guard-check benchmark-reproducibility-check feedback-check adoption-drift-check telemetry-import-check telemetry-emit-check telemetry-hooks-check telemetry-native-host-check review-waivers-check review-annotations-check baseline-compare-check reference-scan-check github-benchmark-scan-check intent-confidence-check reference-synthesis-check output-risk-profile-check artifact-design-profile-check prompt-quality-profile-check system-model-check iteration-directions-check description-drift-history iteration-ledger results-panel regression-history context-reports portability-report portability-check failure-regression-check package-check package-failure-check security-boundary-check local-install-sync-check snapshot-check validate lint governance-check resource-boundary-check quality-check sync-local-install sync-active-install test ci-test clean
+.PHONY: eval eval-suite route-scorecard route-confusion-check description-optimization judge-blind-eval description-optimization-check promotion-check python-compat-check architecture-maintainability-check yao-cli-check skill-overview-check skill-report-metrics-check skill-report-charts-check skill-ir-check compiler-check output-eval-check output-execution-check output-review-adjudication-check runtime-conformance-check runtime-permission-check trust-check skill-atlas-check registry-audit-check package-verify-check install-simulation-check upgrade-check review-viewer-check review-studio-check skill-os2-audit-check skill-os2-coverage-check world-class-evidence-check world-class-ledger-check world-class-intake-check world-class-claim-guard-check benchmark-reproducibility-check feedback-check adoption-drift-check telemetry-import-check telemetry-emit-check telemetry-hooks-check telemetry-native-host-check review-waivers-check review-annotations-check baseline-compare-check reference-scan-check github-benchmark-scan-check intent-confidence-check reference-synthesis-check output-risk-profile-check artifact-design-profile-check prompt-quality-profile-check system-model-check iteration-directions-check description-drift-history iteration-ledger results-panel regression-history context-reports portability-report portability-check failure-regression-check package-check package-failure-check security-boundary-check local-install-sync-check snapshot-check validate lint governance-check resource-boundary-check quality-check sync-local-install sync-active-install test ci-test clean
 
 eval:
 	$(PYTHON) scripts/trigger_eval.py --description-file evals/improved_description.txt --cases evals/trigger_cases.json --baseline-description-file evals/baseline_description.txt
@@ -31,6 +31,9 @@ promotion-check:
 python-compat-check:
 	$(PYTHON) tests/verify_python_compat_check.py
 
+architecture-maintainability-check:
+	$(PYTHON) tests/verify_architecture_maintainability.py
+
 yao-cli-check:
 	$(PYTHON) tests/verify_yao_cli.py
 
@@ -223,11 +226,11 @@ sync-local-install: package-check
 sync-active-install: package-check
 	$(PYTHON) scripts/sync_local_install.py --install-dir "$(ACTIVE_SKILL_INSTALL_DIR)"
 
-test: eval eval-suite route-scorecard route-confusion-check description-optimization description-optimization-check promotion-check python-compat-check yao-cli-check skill-overview-check skill-report-metrics-check skill-report-charts-check skill-ir-check compiler-check output-eval-check output-execution-check output-review-adjudication-check runtime-conformance-check runtime-permission-check trust-check skill-atlas-check registry-audit-check package-verify-check install-simulation-check upgrade-check review-viewer-check review-studio-check skill-os2-audit-check skill-os2-coverage-check world-class-evidence-check world-class-ledger-check world-class-intake-check world-class-claim-guard-check benchmark-reproducibility-check feedback-check adoption-drift-check telemetry-import-check telemetry-emit-check telemetry-hooks-check telemetry-native-host-check review-waivers-check review-annotations-check baseline-compare-check reference-scan-check github-benchmark-scan-check intent-confidence-check reference-synthesis-check output-risk-profile-check artifact-design-profile-check prompt-quality-profile-check system-model-check iteration-directions-check description-drift-history iteration-ledger regression-history context-reports portability-report portability-check failure-regression-check package-check package-failure-check security-boundary-check local-install-sync-check snapshot-check validate lint governance-check resource-boundary-check quality-check
+test: eval eval-suite route-scorecard route-confusion-check description-optimization description-optimization-check promotion-check python-compat-check architecture-maintainability-check yao-cli-check skill-overview-check skill-report-metrics-check skill-report-charts-check skill-ir-check compiler-check output-eval-check output-execution-check output-review-adjudication-check runtime-conformance-check runtime-permission-check trust-check skill-atlas-check registry-audit-check package-verify-check install-simulation-check upgrade-check review-viewer-check review-studio-check skill-os2-audit-check skill-os2-coverage-check world-class-evidence-check world-class-ledger-check world-class-intake-check world-class-claim-guard-check benchmark-reproducibility-check feedback-check adoption-drift-check telemetry-import-check telemetry-emit-check telemetry-hooks-check telemetry-native-host-check review-waivers-check review-annotations-check baseline-compare-check reference-scan-check github-benchmark-scan-check intent-confidence-check reference-synthesis-check output-risk-profile-check artifact-design-profile-check prompt-quality-profile-check system-model-check iteration-directions-check description-drift-history iteration-ledger regression-history context-reports portability-report portability-check failure-regression-check package-check package-failure-check security-boundary-check local-install-sync-check snapshot-check validate lint governance-check resource-boundary-check quality-check
 
 ci-test:
 	$(PYTHON) scripts/ci_test.py
 
 clean:
-	rm -rf dist tests/tmp tests/tmp_snapshot tests/tmp_cli tests/tmp_python_compat tests/tmp_skill_overview tests/tmp_skill_report_metrics tests/tmp_skill_report_charts tests/tmp_skill_ir tests/tmp_compile_skill tests/tmp_output_eval tests/tmp_output_execution tests/tmp_output_review_adjudication tests/tmp_conformance tests/tmp_runtime_permission tests/tmp_trust tests/tmp_skill_atlas tests/tmp_registry tests/tmp_package_verification tests/tmp_install_simulation tests/tmp_upgrade_check tests/tmp_reference_scan tests/tmp_iteration_directions tests/tmp_review_viewer tests/tmp_review_studio tests/tmp_skill_os2_audit tests/tmp_skill_os2_coverage tests/tmp_world_class_evidence tests/tmp_world_class_evidence_ledger tests/tmp_world_class_evidence_intake tests/tmp_world_class_claim_guard tests/tmp_benchmark_reproducibility tests/tmp_feedback tests/tmp_adoption_drift tests/tmp_telemetry_import tests/tmp_telemetry_emit tests/tmp_telemetry_hooks tests/tmp_telemetry_native_host tests/tmp_review_waivers tests/tmp_review_annotations tests/tmp_github_benchmark_scan tests/tmp_intent_confidence tests/tmp_reference_synthesis tests/tmp_output_risk_profile tests/tmp_artifact_design_profile tests/tmp_prompt_quality_profile tests/tmp_system_model tests/tmp_security tests/tmp_baseline_compare.json tests/tmp_baseline_compare.md
+	rm -rf dist tests/tmp tests/tmp_snapshot tests/tmp_cli tests/tmp_python_compat tests/tmp_architecture_maintainability tests/tmp_skill_overview tests/tmp_skill_report_metrics tests/tmp_skill_report_charts tests/tmp_skill_ir tests/tmp_compile_skill tests/tmp_output_eval tests/tmp_output_execution tests/tmp_output_review_adjudication tests/tmp_conformance tests/tmp_runtime_permission tests/tmp_trust tests/tmp_skill_atlas tests/tmp_registry tests/tmp_package_verification tests/tmp_install_simulation tests/tmp_upgrade_check tests/tmp_reference_scan tests/tmp_iteration_directions tests/tmp_review_viewer tests/tmp_review_studio tests/tmp_skill_os2_audit tests/tmp_skill_os2_coverage tests/tmp_world_class_evidence tests/tmp_world_class_evidence_ledger tests/tmp_world_class_evidence_intake tests/tmp_world_class_claim_guard tests/tmp_benchmark_reproducibility tests/tmp_feedback tests/tmp_adoption_drift tests/tmp_telemetry_import tests/tmp_telemetry_emit tests/tmp_telemetry_hooks tests/tmp_telemetry_native_host tests/tmp_review_waivers tests/tmp_review_annotations tests/tmp_github_benchmark_scan tests/tmp_intent_confidence tests/tmp_reference_synthesis tests/tmp_output_risk_profile tests/tmp_artifact_design_profile tests/tmp_prompt_quality_profile tests/tmp_system_model tests/tmp_security tests/tmp_baseline_compare.json tests/tmp_baseline_compare.md
 	find . -type d -name __pycache__ -prune -exec rm -rf {} +
diff --git a/registry/index.json b/registry/index.json
index 7399bf0b..b80d90de 100644
--- a/registry/index.json
+++ b/registry/index.json
@@ -16,7 +16,7 @@
         "vscode"
       ],
       "package_metadata": "registry/packages/yao-meta-skill.json",
-      "package_sha256": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723"
+      "package_sha256": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa"
     }
   ]
 }
diff --git a/registry/packages/yao-meta-skill.json b/registry/packages/yao-meta-skill.json
index 9c57cbed..2a46fda0 100644
--- a/registry/packages/yao-meta-skill.json
+++ b/registry/packages/yao-meta-skill.json
@@ -16,8 +16,8 @@
   "trust_level": "local",
   "license": "MIT",
   "checksums": {
-    "package_sha256": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723",
-    "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2"
+    "package_sha256": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa",
+    "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7"
   },
   "compatibility": {
     "openai": "pass",
@@ -48,7 +48,7 @@
   },
   "distribution": {
     "archive_verified": true,
-    "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2",
+    "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7",
     "package_verification": "reports/package_verification.json",
     "install_simulated": true,
     "install_simulation": "reports/install_simulation.json"
diff --git a/reports/adoption_drift_report.json b/reports/adoption_drift_report.json
index eced7fea..d0e6429c 100644
--- a/reports/adoption_drift_report.json
+++ b/reports/adoption_drift_report.json
@@ -1,7 +1,7 @@
 {
   "ok": true,
   "schema_version": "2.0",
-  "generated_at": "2026-06-13T17:32:44Z",
+  "generated_at": "2026-06-13T17:49:00Z",
   "skill_dir": ".",
   "privacy_contract": {
     "storage": "local-first",
diff --git a/reports/architecture_maintainability.json b/reports/architecture_maintainability.json
new file mode 100644
index 00000000..97c137ae
--- /dev/null
+++ b/reports/architecture_maintainability.json
@@ -0,0 +1,150 @@
+{
+  "schema_version": "1.0",
+  "ok": true,
+  "generated_at": "2026-06-14",
+  "skill_dir": ".",
+  "summary": {
+    "python_file_count": 139,
+    "script_file_count": 83,
+    "test_file_count": 56,
+    "internal_module_count": 12,
+    "cli_script_count": 72,
+    "command_handler_count": 55,
+    "warn_line_threshold": 900,
+    "block_line_threshold": 1500,
+    "largest_file_lines": 1438,
+    "hotspot_count": 3,
+    "blocker_count": 0,
+    "decision": "watch-maintainability-hotspots"
+  },
+  "largest_files": [
+    {
+      "path": "scripts/yao.py",
+      "lines": 1438,
+      "kind": "cli-script",
+      "severity": "warn",
+      "recommendation": "Split command handlers by domain while keeping scripts/yao.py as the thin CLI orchestrator."
+    },
+    {
+      "path": "scripts/render_review_studio.py",
+      "lines": 1196,
+      "kind": "cli-script",
+      "severity": "warn",
+      "recommendation": "Move data loading and large section renderers into focused review_studio_* modules."
+    },
+    {
+      "path": "scripts/render_review_viewer.py",
+      "lines": 983,
+      "kind": "cli-script",
+      "severity": "warn",
+      "recommendation": "Split viewer data assembly from HTML section rendering."
+    },
+    {
+      "path": "tests/verify_yao_cli.py",
+      "lines": 833,
+      "kind": "test",
+      "severity": "pass",
+      "recommendation": "Break broad integration assertions into focused verifier helpers when the next behavior change lands."
+    },
+    {
+      "path": "scripts/skill_report_model.py",
+      "lines": 782,
+      "kind": "internal-module",
+      "severity": "pass",
+      "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+    },
+    {
+      "path": "scripts/compile_skill.py",
+      "lines": 734,
+      "kind": "cli-script",
+      "severity": "pass",
+      "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+    },
+    {
+      "path": "scripts/optimize_description.py",
+      "lines": 723,
+      "kind": "cli-script",
+      "severity": "pass",
+      "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+    },
+    {
+      "path": "scripts/trust_check.py",
+      "lines": 714,
+      "kind": "internal-module",
+      "severity": "pass",
+      "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+    },
+    {
+      "path": "scripts/yao_cli_parser.py",
+      "lines": 691,
+      "kind": "internal-module",
+      "severity": "pass",
+      "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+    },
+    {
+      "path": "scripts/build_skill_atlas.py",
+      "lines": 674,
+      "kind": "cli-script",
+      "severity": "pass",
+      "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+    },
+    {
+      "path": "scripts/skill_report_layout.py",
+      "lines": 653,
+      "kind": "internal-module",
+      "severity": "pass",
+      "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+    },
+    {
+      "path": "scripts/render_reference_synthesis.py",
+      "lines": 644,
+      "kind": "cli-script",
+      "severity": "pass",
+      "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+    }
+  ],
+  "hotspots": [
+    {
+      "path": "scripts/yao.py",
+      "lines": 1438,
+      "kind": "cli-script",
+      "severity": "warn",
+      "recommendation": "Split command handlers by domain while keeping scripts/yao.py as the thin CLI orchestrator."
+    },
+    {
+      "path": "scripts/render_review_studio.py",
+      "lines": 1196,
+      "kind": "cli-script",
+      "severity": "warn",
+      "recommendation": "Move data loading and large section renderers into focused review_studio_* modules."
+    },
+    {
+      "path": "scripts/render_review_viewer.py",
+      "lines": 983,
+      "kind": "cli-script",
+      "severity": "warn",
+      "recommendation": "Split viewer data assembly from HTML section rendering."
+    }
+  ],
+  "actions": [
+    {
+      "path": "scripts/yao.py",
+      "severity": "warn",
+      "action": "Split command handlers by domain while keeping scripts/yao.py as the thin CLI orchestrator."
+    },
+    {
+      "path": "scripts/render_review_studio.py",
+      "severity": "warn",
+      "action": "Move data loading and large section renderers into focused review_studio_* modules."
+    },
+    {
+      "path": "scripts/render_review_viewer.py",
+      "severity": "warn",
+      "action": "Split viewer data assembly from HTML section rendering."
+    }
+  ],
+  "artifacts": {
+    "json": "reports/architecture_maintainability.json",
+    "markdown": "reports/architecture_maintainability.md"
+  }
+}
diff --git a/reports/architecture_maintainability.md b/reports/architecture_maintainability.md
new file mode 100644
index 00000000..7484f199
--- /dev/null
+++ b/reports/architecture_maintainability.md
@@ -0,0 +1,49 @@
+# Architecture Maintainability
+
+Generated at: `2026-06-14`
+
+## Summary
+
+- decision: `watch-maintainability-hotspots`
+- python files: `139`
+- scripts: `83`
+- tests: `56`
+- internal modules: `12`
+- CLI scripts: `72`
+- Yao CLI command handlers: `55`
+- largest file lines: `1438`
+- hotspots: `3`
+- blockers: `0`
+
+This report keeps maintainability risk visible before the Meta Skill grows more gates, renderers, and CLI commands.
+
+## Hotspots
+
+| File | Lines | Kind | Severity | Recommended action |
+| --- | ---: | --- | --- | --- |
+| `scripts/yao.py` | `1438` | `cli-script` | `warn` | Split command handlers by domain while keeping scripts/yao.py as the thin CLI orchestrator. |
+| `scripts/render_review_studio.py` | `1196` | `cli-script` | `warn` | Move data loading and large section renderers into focused review_studio_* modules. |
+| `scripts/render_review_viewer.py` | `983` | `cli-script` | `warn` | Split viewer data assembly from HTML section rendering. |
+
+## Largest Files
+
+| File | Lines | Kind | Severity |
+| --- | ---: | --- | --- |
+| `scripts/yao.py` | `1438` | `cli-script` | `warn` |
+| `scripts/render_review_studio.py` | `1196` | `cli-script` | `warn` |
+| `scripts/render_review_viewer.py` | `983` | `cli-script` | `warn` |
+| `tests/verify_yao_cli.py` | `833` | `test` | `pass` |
+| `scripts/skill_report_model.py` | `782` | `internal-module` | `pass` |
+| `scripts/compile_skill.py` | `734` | `cli-script` | `pass` |
+| `scripts/optimize_description.py` | `723` | `cli-script` | `pass` |
+| `scripts/trust_check.py` | `714` | `internal-module` | `pass` |
+| `scripts/yao_cli_parser.py` | `691` | `internal-module` | `pass` |
+| `scripts/build_skill_atlas.py` | `674` | `cli-script` | `pass` |
+| `scripts/skill_report_layout.py` | `653` | `internal-module` | `pass` |
+| `scripts/render_reference_synthesis.py` | `644` | `cli-script` | `pass` |
+
+## Release Rule
+
+- `block` hotspots should be split before governed release.
+- `warn` hotspots can ship only when Review Studio keeps them visible and a reviewer accepts the modularization plan.
+- Do not split a file only for line count; split when a stable responsibility boundary is clear.
diff --git a/reports/benchmark_reproducibility.json b/reports/benchmark_reproducibility.json
index bd2e1650..fce60636 100644
--- a/reports/benchmark_reproducibility.json
+++ b/reports/benchmark_reproducibility.json
@@ -3,12 +3,13 @@
   "ok": true,
   "generated_at": "2026-06-14",
   "skill_dir": ".",
-  "commit": "4737358f3c7acb6650d5463793e5f0e8f913aada",
+  "commit": "ae0f72cccb542d653d6884c38e6f5d1b9a4a2b2d",
   "git_status": {
     "available": true,
     "dirty": true,
-    "changed_file_count": 30,
+    "changed_file_count": 44,
     "sample": [
+      " M Makefile",
       " M registry/index.json",
       " M registry/packages/yao-meta-skill.json",
       " M reports/adoption_drift_report.json",
@@ -16,11 +17,10 @@
       " M reports/benchmark_reproducibility.md",
       " M reports/compiled_targets.json",
       " M reports/context_budget.json",
+      " M reports/install_simulation.json",
       " M reports/output_execution_runs.json",
       " M reports/output_execution_runs.md",
-      " M reports/package_verification.json",
-      " M reports/package_verification.md",
-      " M reports/registry_audit.json"
+      " M reports/package_verification.json"
     ]
   },
   "summary": {
@@ -42,7 +42,7 @@
     "world_class_task_count": 4,
     "world_class_ledger_pending_count": 4,
     "working_tree_dirty": true,
-    "changed_file_count": 30
+    "changed_file_count": 44
   },
   "methodology": {
     "path": "reports/benchmark_methodology.md",
@@ -116,7 +116,7 @@
       "path": "reports/output_execution_runs.json",
       "exists": true,
       "bytes": 7967,
-      "sha256": "cd6de0ee193725d03c3e16b3b116eda21ee2db71d830505de50da4c3624c8f3e"
+      "sha256": "1c204ff667b83e4635c792e2ea387865af24dd3191147f24f22f69ceaff968b5"
     },
     {
       "label": "blind_review",
@@ -150,43 +150,43 @@
       "label": "trust_report",
       "path": "reports/security_trust_report.json",
       "exists": true,
-      "bytes": 87272,
-      "sha256": "3cbe50361df9b509477ee70f27da9fc4e95462d588b1e7b71ba31da8e9f75d7b"
+      "bytes": 88376,
+      "sha256": "c846881bdb45e47b6f7c576e9c0e58cc157d7fd2f358ba710fbf92e9564d89fd"
     },
     {
       "label": "python_compatibility",
       "path": "reports/python_compatibility.json",
       "exists": true,
-      "bytes": 18283,
-      "sha256": "435dabcd3ce01fc90fc01f1b359e5063e1ff468eec8ae38daeb05116edc5d08f"
+      "bytes": 18557,
+      "sha256": "29fd6618afda3e74452262ed5c0ebd03d585495bb08aeac08d6341c4aa3be54c"
     },
     {
       "label": "registry_audit",
       "path": "reports/registry_audit.json",
       "exists": true,
       "bytes": 3183,
-      "sha256": "d293ac8472d4c16f32f77cecb735d7c32f5a0bf9a409f43006c74b7d826de34b"
+      "sha256": "729094faff9d20fec82ea1a481332389b3104a6e37bfe87b20cd4dfc833c7d80"
     },
     {
       "label": "package_verification",
       "path": "reports/package_verification.json",
       "exists": true,
       "bytes": 19325,
-      "sha256": "bef665206e2f6ca0e998caa941fc6ffe75cf782036945595d743f83f156fc04f"
+      "sha256": "5f45e45cc28c43693f702228587a82a9246a35df09f95046e3d111dd5f48897c"
     },
     {
       "label": "install_simulation",
       "path": "reports/install_simulation.json",
       "exists": true,
       "bytes": 8557,
-      "sha256": "2bb990fc21986c840309a8ca118612ba27baa7538fd426538ab7955ea9bebb57"
+      "sha256": "c0ffaaded1898df656415208722157213bb364200d8834d9d21812d574e7b269"
     },
     {
       "label": "skill_os2_audit",
       "path": "reports/skill_os2_audit.json",
       "exists": true,
       "bytes": 13946,
-      "sha256": "ef085ddc8a1e23ddda43d41adde62b50e6b1988842b232019c28a2e29b1d807a"
+      "sha256": "80ef52f1775e85d6b96643cbebe99f21a0f04d86af6e38a4f1901e3b5511a235"
     },
     {
       "label": "world_class_evidence_plan",
@@ -213,8 +213,8 @@
       "label": "world_class_claim_guard",
       "path": "reports/world_class_claim_guard.json",
       "exists": true,
-      "bytes": 7898,
-      "sha256": "63628e78d1d2967928b86f73faa133ddc7d712499ffb5dd1d7947b2c070f3899"
+      "bytes": 7995,
+      "sha256": "608c954d1af917a0e062d90d976a157a44a578e1137e3759209be90c100fecc2"
     }
   ],
   "missing_artifacts": [],
diff --git a/reports/benchmark_reproducibility.md b/reports/benchmark_reproducibility.md
index 6c44ec79..5436a567 100644
--- a/reports/benchmark_reproducibility.md
+++ b/reports/benchmark_reproducibility.md
@@ -1,7 +1,7 @@
 # Benchmark Reproducibility
 
 Generated at: `2026-06-14`
-Commit: `4737358f3c7acb6650d5463793e5f0e8f913aada`
+Commit: `ae0f72cccb542d653d6884c38e6f5d1b9a4a2b2d`
 Working tree dirty at generation: `true`
 
 ## Summary
@@ -16,7 +16,7 @@ Working tree dirty at generation: `true`
 - provider evidence complete: `false`
 - human review complete: `false`
 - world-class ready: `false`
-- changed files at generation: `30`
+- changed files at generation: `44`
 
 This report proves local benchmark reproducibility only. It keeps external provider and human-review gaps visible instead of counting them as complete.
 
@@ -40,21 +40,21 @@ This report proves local benchmark reproducibility only. It keeps external provi
 | output_cases | `evals/output/cases.jsonl` | present | `a6ae96857116` |
 | output_schema | `evals/output/schema.json` | present | `8ee340c95064` |
 | output_scorecard | `reports/output_quality_scorecard.json` | present | `0806258a8e08` |
-| output_execution | `reports/output_execution_runs.json` | present | `cd6de0ee1937` |
+| output_execution | `reports/output_execution_runs.json` | present | `1c204ff667b8` |
 | blind_review | `reports/output_blind_review_pack.json` | present | `bbe2db8ec277` |
 | review_adjudication | `reports/output_review_adjudication.json` | present | `ddd9af90d42e` |
 | trigger_scorecard | `reports/route_scorecard.json` | present | `c164e83e36d0` |
 | runtime_conformance | `reports/conformance_matrix.json` | present | `8251329e663d` |
-| trust_report | `reports/security_trust_report.json` | present | `3cbe50361df9` |
-| python_compatibility | `reports/python_compatibility.json` | present | `435dabcd3ce0` |
-| registry_audit | `reports/registry_audit.json` | present | `d293ac8472d4` |
-| package_verification | `reports/package_verification.json` | present | `bef665206e2f` |
-| install_simulation | `reports/install_simulation.json` | present | `2bb990fc2198` |
-| skill_os2_audit | `reports/skill_os2_audit.json` | present | `ef085ddc8a1e` |
+| trust_report | `reports/security_trust_report.json` | present | `c846881bdb45` |
+| python_compatibility | `reports/python_compatibility.json` | present | `29fd6618afda` |
+| registry_audit | `reports/registry_audit.json` | present | `729094faff9d` |
+| package_verification | `reports/package_verification.json` | present | `5f45e45cc28c` |
+| install_simulation | `reports/install_simulation.json` | present | `c0ffaaded189` |
+| skill_os2_audit | `reports/skill_os2_audit.json` | present | `80ef52f1775e` |
 | world_class_evidence_plan | `reports/world_class_evidence_plan.json` | present | `ed1274b7c18c` |
 | world_class_evidence_ledger | `reports/world_class_evidence_ledger.json` | present | `5ed043491c3d` |
 | world_class_evidence_intake | `reports/world_class_evidence_intake.json` | present | `124b9239d7f3` |
-| world_class_claim_guard | `reports/world_class_claim_guard.json` | present | `63628e78d1d2` |
+| world_class_claim_guard | `reports/world_class_claim_guard.json` | present | `608c954d1af9` |
 
 ## Reproduction Commands
 
diff --git a/reports/compiled_targets.json b/reports/compiled_targets.json
index 7d5f1f9a..c0786f75 100644
--- a/reports/compiled_targets.json
+++ b/reports/compiled_targets.json
@@ -172,6 +172,7 @@
             "scripts/python_compat_check.py",
             "scripts/registry_audit.py",
             "scripts/render_adoption_drift_report.py",
+            "scripts/render_architecture_maintainability.py",
             "scripts/render_artifact_design_profile.py",
             "scripts/render_baseline_compare.py",
             "scripts/render_benchmark_reproducibility.py",
@@ -223,8 +224,7 @@
             "scripts/upgrade_check.py",
             "scripts/validate_skill.py",
             "scripts/verify_package.py",
-            "scripts/yao.py",
-            "scripts/yao_cli_config.py"
+            "scripts/yao.py"
           ],
           "assets": [
             "templates/basic_skill.md.j2",
@@ -383,7 +383,7 @@
             },
             "file_write": {
               "required": true,
-              "script_count": 59,
+              "script_count": 60,
               "scripts": [
                 "scripts/adjudicate_output_review.py",
                 "scripts/build_confusion_matrix.py",
@@ -404,6 +404,7 @@
                 "scripts/python_compat_check.py",
                 "scripts/registry_audit.py",
                 "scripts/render_adoption_drift_report.py",
+                "scripts/render_architecture_maintainability.py",
                 "scripts/render_artifact_design_profile.py",
                 "scripts/render_baseline_compare.py",
                 "scripts/render_benchmark_reproducibility.py",
@@ -481,14 +482,14 @@
           },
           "help_smoke": {
             "enabled": true,
-            "checked_count": 72,
+            "checked_count": 73,
             "failed_count": 0,
             "failed_scripts": []
           },
           "trust_summary": {
             "secret_findings": 0,
             "network_script_count": 3,
-            "file_write_script_count": 59,
+            "file_write_script_count": 60,
             "subprocess_script_count": 8,
             "interactive_script_count": 0,
             "help_smoke_failed_count": 0
@@ -510,7 +511,7 @@
           ],
           "capability_counts": {
             "network": 3,
-            "file_write": 59,
+            "file_write": 60,
             "subprocess": 8,
             "interactive": 0
           },
@@ -623,7 +624,7 @@
           },
           "file_write": {
             "required": true,
-            "script_count": 59,
+            "script_count": 60,
             "scripts": [
               "scripts/adjudicate_output_review.py",
               "scripts/build_confusion_matrix.py",
@@ -644,6 +645,7 @@
               "scripts/python_compat_check.py",
               "scripts/registry_audit.py",
               "scripts/render_adoption_drift_report.py",
+              "scripts/render_architecture_maintainability.py",
               "scripts/render_artifact_design_profile.py",
               "scripts/render_baseline_compare.py",
               "scripts/render_benchmark_reproducibility.py",
@@ -721,14 +723,14 @@
         },
         "help_smoke": {
           "enabled": true,
-          "checked_count": 72,
+          "checked_count": 73,
           "failed_count": 0,
           "failed_scripts": []
         },
         "trust_summary": {
           "secret_findings": 0,
           "network_script_count": 3,
-          "file_write_script_count": 59,
+          "file_write_script_count": 60,
           "subprocess_script_count": 8,
           "interactive_script_count": 0,
           "help_smoke_failed_count": 0
@@ -748,7 +750,7 @@
         ],
         "capability_counts": {
           "network": 3,
-          "file_write": 59,
+          "file_write": 60,
           "subprocess": 8,
           "interactive": 0
         },
@@ -1009,6 +1011,7 @@
             "scripts/python_compat_check.py",
             "scripts/registry_audit.py",
             "scripts/render_adoption_drift_report.py",
+            "scripts/render_architecture_maintainability.py",
             "scripts/render_artifact_design_profile.py",
             "scripts/render_baseline_compare.py",
             "scripts/render_benchmark_reproducibility.py",
@@ -1060,8 +1063,7 @@
             "scripts/upgrade_check.py",
             "scripts/validate_skill.py",
             "scripts/verify_package.py",
-            "scripts/yao.py",
-            "scripts/yao_cli_config.py"
+            "scripts/yao.py"
           ],
           "assets": [
             "templates/basic_skill.md.j2",
@@ -1220,7 +1222,7 @@
             },
             "file_write": {
               "required": true,
-              "script_count": 59,
+              "script_count": 60,
               "scripts": [
                 "scripts/adjudicate_output_review.py",
                 "scripts/build_confusion_matrix.py",
@@ -1241,6 +1243,7 @@
                 "scripts/python_compat_check.py",
                 "scripts/registry_audit.py",
                 "scripts/render_adoption_drift_report.py",
+                "scripts/render_architecture_maintainability.py",
                 "scripts/render_artifact_design_profile.py",
                 "scripts/render_baseline_compare.py",
                 "scripts/render_benchmark_reproducibility.py",
@@ -1318,14 +1321,14 @@
           },
           "help_smoke": {
             "enabled": true,
-            "checked_count": 72,
+            "checked_count": 73,
             "failed_count": 0,
             "failed_scripts": []
           },
           "trust_summary": {
             "secret_findings": 0,
             "network_script_count": 3,
-            "file_write_script_count": 59,
+            "file_write_script_count": 60,
             "subprocess_script_count": 8,
             "interactive_script_count": 0,
             "help_smoke_failed_count": 0
@@ -1347,7 +1350,7 @@
           ],
           "capability_counts": {
             "network": 3,
-            "file_write": 59,
+            "file_write": 60,
             "subprocess": 8,
             "interactive": 0
           },
@@ -1460,7 +1463,7 @@
           },
           "file_write": {
             "required": true,
-            "script_count": 59,
+            "script_count": 60,
             "scripts": [
               "scripts/adjudicate_output_review.py",
               "scripts/build_confusion_matrix.py",
@@ -1481,6 +1484,7 @@
               "scripts/python_compat_check.py",
               "scripts/registry_audit.py",
               "scripts/render_adoption_drift_report.py",
+              "scripts/render_architecture_maintainability.py",
               "scripts/render_artifact_design_profile.py",
               "scripts/render_baseline_compare.py",
               "scripts/render_benchmark_reproducibility.py",
@@ -1558,14 +1562,14 @@
         },
         "help_smoke": {
           "enabled": true,
-          "checked_count": 72,
+          "checked_count": 73,
           "failed_count": 0,
           "failed_scripts": []
         },
         "trust_summary": {
           "secret_findings": 0,
           "network_script_count": 3,
-          "file_write_script_count": 59,
+          "file_write_script_count": 60,
           "subprocess_script_count": 8,
           "interactive_script_count": 0,
           "help_smoke_failed_count": 0
@@ -1585,7 +1589,7 @@
         ],
         "capability_counts": {
           "network": 3,
-          "file_write": 59,
+          "file_write": 60,
           "subprocess": 8,
           "interactive": 0
         },
@@ -1846,6 +1850,7 @@
             "scripts/python_compat_check.py",
             "scripts/registry_audit.py",
             "scripts/render_adoption_drift_report.py",
+            "scripts/render_architecture_maintainability.py",
             "scripts/render_artifact_design_profile.py",
             "scripts/render_baseline_compare.py",
             "scripts/render_benchmark_reproducibility.py",
@@ -1897,8 +1902,7 @@
             "scripts/upgrade_check.py",
             "scripts/validate_skill.py",
             "scripts/verify_package.py",
-            "scripts/yao.py",
-            "scripts/yao_cli_config.py"
+            "scripts/yao.py"
           ],
           "assets": [
             "templates/basic_skill.md.j2",
@@ -2057,7 +2061,7 @@
             },
             "file_write": {
               "required": true,
-              "script_count": 59,
+              "script_count": 60,
               "scripts": [
                 "scripts/adjudicate_output_review.py",
                 "scripts/build_confusion_matrix.py",
@@ -2078,6 +2082,7 @@
                 "scripts/python_compat_check.py",
                 "scripts/registry_audit.py",
                 "scripts/render_adoption_drift_report.py",
+                "scripts/render_architecture_maintainability.py",
                 "scripts/render_artifact_design_profile.py",
                 "scripts/render_baseline_compare.py",
                 "scripts/render_benchmark_reproducibility.py",
@@ -2155,14 +2160,14 @@
           },
           "help_smoke": {
             "enabled": true,
-            "checked_count": 72,
+            "checked_count": 73,
             "failed_count": 0,
             "failed_scripts": []
           },
           "trust_summary": {
             "secret_findings": 0,
             "network_script_count": 3,
-            "file_write_script_count": 59,
+            "file_write_script_count": 60,
             "subprocess_script_count": 8,
             "interactive_script_count": 0,
             "help_smoke_failed_count": 0
@@ -2184,7 +2189,7 @@
           ],
           "capability_counts": {
             "network": 3,
-            "file_write": 59,
+            "file_write": 60,
             "subprocess": 8,
             "interactive": 0
           },
@@ -2290,7 +2295,7 @@
           },
           "file_write": {
             "required": true,
-            "script_count": 59,
+            "script_count": 60,
             "scripts": [
               "scripts/adjudicate_output_review.py",
               "scripts/build_confusion_matrix.py",
@@ -2311,6 +2316,7 @@
               "scripts/python_compat_check.py",
               "scripts/registry_audit.py",
               "scripts/render_adoption_drift_report.py",
+              "scripts/render_architecture_maintainability.py",
               "scripts/render_artifact_design_profile.py",
               "scripts/render_baseline_compare.py",
               "scripts/render_benchmark_reproducibility.py",
@@ -2388,14 +2394,14 @@
         },
         "help_smoke": {
           "enabled": true,
-          "checked_count": 72,
+          "checked_count": 73,
           "failed_count": 0,
           "failed_scripts": []
         },
         "trust_summary": {
           "secret_findings": 0,
           "network_script_count": 3,
-          "file_write_script_count": 59,
+          "file_write_script_count": 60,
           "subprocess_script_count": 8,
           "interactive_script_count": 0,
           "help_smoke_failed_count": 0
@@ -2415,7 +2421,7 @@
         ],
         "capability_counts": {
           "network": 3,
-          "file_write": 59,
+          "file_write": 60,
           "subprocess": 8,
           "interactive": 0
         },
@@ -2667,6 +2673,7 @@
             "scripts/python_compat_check.py",
             "scripts/registry_audit.py",
             "scripts/render_adoption_drift_report.py",
+            "scripts/render_architecture_maintainability.py",
             "scripts/render_artifact_design_profile.py",
             "scripts/render_baseline_compare.py",
             "scripts/render_benchmark_reproducibility.py",
@@ -2718,8 +2725,7 @@
             "scripts/upgrade_check.py",
             "scripts/validate_skill.py",
             "scripts/verify_package.py",
-            "scripts/yao.py",
-            "scripts/yao_cli_config.py"
+            "scripts/yao.py"
           ],
           "assets": [
             "templates/basic_skill.md.j2",
@@ -2878,7 +2884,7 @@
             },
             "file_write": {
               "required": true,
-              "script_count": 59,
+              "script_count": 60,
               "scripts": [
                 "scripts/adjudicate_output_review.py",
                 "scripts/build_confusion_matrix.py",
@@ -2899,6 +2905,7 @@
                 "scripts/python_compat_check.py",
                 "scripts/registry_audit.py",
                 "scripts/render_adoption_drift_report.py",
+                "scripts/render_architecture_maintainability.py",
                 "scripts/render_artifact_design_profile.py",
                 "scripts/render_baseline_compare.py",
                 "scripts/render_benchmark_reproducibility.py",
@@ -2976,14 +2983,14 @@
           },
           "help_smoke": {
             "enabled": true,
-            "checked_count": 72,
+            "checked_count": 73,
             "failed_count": 0,
             "failed_scripts": []
           },
           "trust_summary": {
             "secret_findings": 0,
             "network_script_count": 3,
-            "file_write_script_count": 59,
+            "file_write_script_count": 60,
             "subprocess_script_count": 8,
             "interactive_script_count": 0,
             "help_smoke_failed_count": 0
@@ -3005,7 +3012,7 @@
           ],
           "capability_counts": {
             "network": 3,
-            "file_write": 59,
+            "file_write": 60,
             "subprocess": 8,
             "interactive": 0
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@@ -3111,7 +3118,7 @@
           },
           "file_write": {
             "required": true,
-            "script_count": 59,
+            "script_count": 60,
             "scripts": [
               "scripts/adjudicate_output_review.py",
               "scripts/build_confusion_matrix.py",
@@ -3132,6 +3139,7 @@
               "scripts/python_compat_check.py",
               "scripts/registry_audit.py",
               "scripts/render_adoption_drift_report.py",
+              "scripts/render_architecture_maintainability.py",
               "scripts/render_artifact_design_profile.py",
               "scripts/render_baseline_compare.py",
               "scripts/render_benchmark_reproducibility.py",
@@ -3209,14 +3217,14 @@
         },
         "help_smoke": {
           "enabled": true,
-          "checked_count": 72,
+          "checked_count": 73,
           "failed_count": 0,
           "failed_scripts": []
         },
         "trust_summary": {
           "secret_findings": 0,
           "network_script_count": 3,
-          "file_write_script_count": 59,
+          "file_write_script_count": 60,
           "subprocess_script_count": 8,
           "interactive_script_count": 0,
           "help_smoke_failed_count": 0
@@ -3236,7 +3244,7 @@
         ],
         "capability_counts": {
           "network": 3,
-          "file_write": 59,
+          "file_write": 60,
           "subprocess": 8,
           "interactive": 0
         },
@@ -3488,6 +3496,7 @@
             "scripts/python_compat_check.py",
             "scripts/registry_audit.py",
             "scripts/render_adoption_drift_report.py",
+            "scripts/render_architecture_maintainability.py",
             "scripts/render_artifact_design_profile.py",
             "scripts/render_baseline_compare.py",
             "scripts/render_benchmark_reproducibility.py",
@@ -3539,8 +3548,7 @@
             "scripts/upgrade_check.py",
             "scripts/validate_skill.py",
             "scripts/verify_package.py",
-            "scripts/yao.py",
-            "scripts/yao_cli_config.py"
+            "scripts/yao.py"
           ],
           "assets": [
             "templates/basic_skill.md.j2",
@@ -3699,7 +3707,7 @@
             },
             "file_write": {
               "required": true,
-              "script_count": 59,
+              "script_count": 60,
               "scripts": [
                 "scripts/adjudicate_output_review.py",
                 "scripts/build_confusion_matrix.py",
@@ -3720,6 +3728,7 @@
                 "scripts/python_compat_check.py",
                 "scripts/registry_audit.py",
                 "scripts/render_adoption_drift_report.py",
+                "scripts/render_architecture_maintainability.py",
                 "scripts/render_artifact_design_profile.py",
                 "scripts/render_baseline_compare.py",
                 "scripts/render_benchmark_reproducibility.py",
@@ -3797,14 +3806,14 @@
           },
           "help_smoke": {
             "enabled": true,
-            "checked_count": 72,
+            "checked_count": 73,
             "failed_count": 0,
             "failed_scripts": []
           },
           "trust_summary": {
             "secret_findings": 0,
             "network_script_count": 3,
-            "file_write_script_count": 59,
+            "file_write_script_count": 60,
             "subprocess_script_count": 8,
             "interactive_script_count": 0,
             "help_smoke_failed_count": 0
@@ -3826,7 +3835,7 @@
           ],
           "capability_counts": {
             "network": 3,
-            "file_write": 59,
+            "file_write": 60,
             "subprocess": 8,
             "interactive": 0
           },
@@ -3936,7 +3945,7 @@
           },
           "file_write": {
             "required": true,
-            "script_count": 59,
+            "script_count": 60,
             "scripts": [
               "scripts/adjudicate_output_review.py",
               "scripts/build_confusion_matrix.py",
@@ -3957,6 +3966,7 @@
               "scripts/python_compat_check.py",
               "scripts/registry_audit.py",
               "scripts/render_adoption_drift_report.py",
+              "scripts/render_architecture_maintainability.py",
               "scripts/render_artifact_design_profile.py",
               "scripts/render_baseline_compare.py",
               "scripts/render_benchmark_reproducibility.py",
@@ -4034,14 +4044,14 @@
         },
         "help_smoke": {
           "enabled": true,
-          "checked_count": 72,
+          "checked_count": 73,
           "failed_count": 0,
           "failed_scripts": []
         },
         "trust_summary": {
           "secret_findings": 0,
           "network_script_count": 3,
-          "file_write_script_count": 59,
+          "file_write_script_count": 60,
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           "interactive_script_count": 0,
           "help_smoke_failed_count": 0
@@ -4061,7 +4071,7 @@
         ],
         "capability_counts": {
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-          "file_write": 59,
+          "file_write": 60,
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           "interactive": 0
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diff --git a/reports/context_budget.json b/reports/context_budget.json
index 7bfbc4c8..083f3285 100644
--- a/reports/context_budget.json
+++ b/reports/context_budget.json
@@ -6,10 +6,10 @@
     "context_budget_tier": "production",
     "context_budget_limit": 1000,
     "skill_body_tokens": 751,
-    "other_text_tokens": 1073524,
+    "other_text_tokens": 1081013,
     "estimated_initial_load_tokens": 944,
-    "estimated_total_text_tokens": 1074275,
-    "relevant_file_count": 461,
+    "estimated_total_text_tokens": 1081764,
+    "relevant_file_count": 465,
     "unused_resource_dirs": [],
     "quality_signal_points": 130,
     "quality_density": 137.7
diff --git a/reports/install_simulation.json b/reports/install_simulation.json
index 78bc145e..ac8329c4 100644
--- a/reports/install_simulation.json
+++ b/reports/install_simulation.json
@@ -8,7 +8,7 @@
   "installed_skill_dir": "[temporary-install-root]/yao-meta-skill",
   "summary": {
     "archive_present": true,
-    "archive_entry_count": 547,
+    "archive_entry_count": 551,
     "archive_extracted": true,
     "entrypoint_loaded": true,
     "manifest_loaded": true,
diff --git a/reports/output_execution_runs.json b/reports/output_execution_runs.json
index 4911b403..79813db8 100644
--- a/reports/output_execution_runs.json
+++ b/reports/output_execution_runs.json
@@ -62,7 +62,7 @@
       "execution_mode": "command",
       "model_executed": false,
       "command_executed": true,
-      "duration_ms": 25.31,
+      "duration_ms": 25.63,
       "provider": "local-output-eval-runner",
       "model": "",
       "usage": {
@@ -85,7 +85,7 @@
       "execution_mode": "command",
       "model_executed": false,
       "command_executed": true,
-      "duration_ms": 25.31,
+      "duration_ms": 25.52,
       "provider": "local-output-eval-runner",
       "model": "",
       "usage": {
@@ -113,7 +113,7 @@
       "execution_mode": "command",
       "model_executed": false,
       "command_executed": true,
-      "duration_ms": 25.65,
+      "duration_ms": 27.26,
       "provider": "local-output-eval-runner",
       "model": "",
       "usage": {
@@ -136,7 +136,7 @@
       "execution_mode": "command",
       "model_executed": false,
       "command_executed": true,
-      "duration_ms": 25.46,
+      "duration_ms": 29.55,
       "provider": "local-output-eval-runner",
       "model": "",
       "usage": {
@@ -164,7 +164,7 @@
       "execution_mode": "command",
       "model_executed": false,
       "command_executed": true,
-      "duration_ms": 25.46,
+      "duration_ms": 29.51,
       "provider": "local-output-eval-runner",
       "model": "",
       "usage": {
@@ -187,7 +187,7 @@
       "execution_mode": "command",
       "model_executed": false,
       "command_executed": true,
-      "duration_ms": 25.63,
+      "duration_ms": 29.52,
       "provider": "local-output-eval-runner",
       "model": "",
       "usage": {
@@ -214,7 +214,7 @@
       "execution_mode": "command",
       "model_executed": false,
       "command_executed": true,
-      "duration_ms": 25.51,
+      "duration_ms": 29.37,
       "provider": "local-output-eval-runner",
       "model": "",
       "usage": {
@@ -237,7 +237,7 @@
       "execution_mode": "command",
       "model_executed": false,
       "command_executed": true,
-      "duration_ms": 25.72,
+      "duration_ms": 29.31,
       "provider": "local-output-eval-runner",
       "model": "",
       "usage": {
@@ -266,7 +266,7 @@
       "execution_mode": "command",
       "model_executed": false,
       "command_executed": true,
-      "duration_ms": 25.64,
+      "duration_ms": 29.01,
       "provider": "local-output-eval-runner",
       "model": "",
       "usage": {
diff --git a/reports/output_execution_runs.md b/reports/output_execution_runs.md
index ce7e8192..f75e84fa 100644
--- a/reports/output_execution_runs.md
+++ b/reports/output_execution_runs.md
@@ -24,15 +24,15 @@ Command runner evidence is present. This proves the eval harness executed an ext
 | Case | Variant | Mode | Model | Duration ms | Tokens | Score | Status |
 | --- | --- | --- | --- | ---: | ---: | ---: | --- |
 | skill-package-contract | baseline | command | local-output-eval-runner | 25.92 | 33 | 0.0 | pass |
-| skill-package-contract | with_skill | command | local-output-eval-runner | 25.31 | 73 | 100.0 | pass |
-| output-eval-expectation | baseline | command | local-output-eval-runner | 25.31 | 36 | 0.0 | pass |
-| output-eval-expectation | with_skill | command | local-output-eval-runner | 25.65 | 80 | 100.0 | pass |
-| ir-before-packaging | baseline | command | local-output-eval-runner | 25.46 | 33 | 0.0 | pass |
-| ir-before-packaging | with_skill | command | local-output-eval-runner | 25.46 | 80 | 100.0 | pass |
-| near-neighbor-boundary | baseline | command | local-output-eval-runner | 25.63 | 36 | 0.0 | pass |
-| near-neighbor-boundary | with_skill | command | local-output-eval-runner | 25.51 | 65 | 100.0 | pass |
-| file-backed-governed-package | baseline | command | local-output-eval-runner | 25.72 | 37 | 0.0 | pass |
-| file-backed-governed-package | with_skill | command | local-output-eval-runner | 25.64 | 98 | 100.0 | pass |
+| skill-package-contract | with_skill | command | local-output-eval-runner | 25.63 | 73 | 100.0 | pass |
+| output-eval-expectation | baseline | command | local-output-eval-runner | 25.52 | 36 | 0.0 | pass |
+| output-eval-expectation | with_skill | command | local-output-eval-runner | 27.26 | 80 | 100.0 | pass |
+| ir-before-packaging | baseline | command | local-output-eval-runner | 29.55 | 33 | 0.0 | pass |
+| ir-before-packaging | with_skill | command | local-output-eval-runner | 29.51 | 80 | 100.0 | pass |
+| near-neighbor-boundary | baseline | command | local-output-eval-runner | 29.52 | 36 | 0.0 | pass |
+| near-neighbor-boundary | with_skill | command | local-output-eval-runner | 29.37 | 65 | 100.0 | pass |
+| file-backed-governed-package | baseline | command | local-output-eval-runner | 29.31 | 37 | 0.0 | pass |
+| file-backed-governed-package | with_skill | command | local-output-eval-runner | 29.01 | 98 | 100.0 | pass |
 
 ## Next Fixes
 
diff --git a/reports/package_verification.json b/reports/package_verification.json
index 17224887..a5940798 100644
--- a/reports/package_verification.json
+++ b/reports/package_verification.json
@@ -8,8 +8,8 @@
     "target_count": 4,
     "adapter_count": 4,
     "archive_present": true,
-    "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2",
-    "archive_entry_count": 547,
+    "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7",
+    "archive_entry_count": 551,
     "failure_count": 0,
     "warning_count": 0
   },
diff --git a/reports/package_verification.md b/reports/package_verification.md
index 66f5746b..60dfcf98 100644
--- a/reports/package_verification.md
+++ b/reports/package_verification.md
@@ -4,7 +4,7 @@
 - Package directory: `dist`
 - Targets: `4 / 4` adapters present
 - Archive present: `True`
-- Archive SHA256: `d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2`
+- Archive SHA256: `b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7`
 - Failures: `0`
 - Warnings: `0`
 
diff --git a/reports/python_compatibility.json b/reports/python_compatibility.json
index 7cb7a7de..89b897e1 100644
--- a/reports/python_compatibility.json
+++ b/reports/python_compatibility.json
@@ -5,7 +5,7 @@
   "root": ".",
   "summary": {
     "target_python": "3.11",
-    "file_count": 140,
+    "file_count": 142,
     "issue_count": 0,
     "syntax_error_count": 0,
     "fstring_311_violation_count": 0,
@@ -202,6 +202,12 @@
       "issue_count": 0,
       "issues": []
     },
+    {
+      "path": "scripts/render_architecture_maintainability.py",
+      "ok": true,
+      "issue_count": 0,
+      "issues": []
+    },
     {
       "path": "scripts/render_artifact_design_profile.py",
       "ok": true,
@@ -544,6 +550,12 @@
       "issue_count": 0,
       "issues": []
     },
+    {
+      "path": "tests/verify_architecture_maintainability.py",
+      "ok": true,
+      "issue_count": 0,
+      "issues": []
+    },
     {
       "path": "tests/verify_artifact_design_profile.py",
       "ok": true,
diff --git a/reports/python_compatibility.md b/reports/python_compatibility.md
index fbf432d1..79745b56 100644
--- a/reports/python_compatibility.md
+++ b/reports/python_compatibility.md
@@ -6,7 +6,7 @@ Generated at: `2026-06-14`
 
 - decision: `pass`
 - target python: `3.11`
-- files scanned: `140`
+- files scanned: `142`
 - issues: `0`
 - syntax errors: `0`
 - f-string 3.11 violations: `0`
diff --git a/reports/registry_audit.json b/reports/registry_audit.json
index 1e71d6fc..f5b8c754 100644
--- a/reports/registry_audit.json
+++ b/reports/registry_audit.json
@@ -21,8 +21,8 @@
     "trust_level": "local",
     "license": "MIT",
     "checksums": {
-      "package_sha256": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723",
-      "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2"
+      "package_sha256": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa",
+      "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7"
     },
     "compatibility": {
       "openai": "pass",
@@ -53,7 +53,7 @@
     },
     "distribution": {
       "archive_verified": true,
-      "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2",
+      "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7",
       "package_verification": "reports/package_verification.json",
       "install_simulated": true,
       "install_simulation": "reports/install_simulation.json"
@@ -78,7 +78,7 @@
           "vscode"
         ],
         "package_metadata": "registry/packages/yao-meta-skill.json",
-        "package_sha256": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723"
+        "package_sha256": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa"
       }
     ]
   },
diff --git a/reports/registry_audit.md b/reports/registry_audit.md
index dcd9d416..2d0bf1ac 100644
--- a/reports/registry_audit.md
+++ b/reports/registry_audit.md
@@ -6,8 +6,8 @@
 - Maturity: `governed`
 - Owner: `Yao Team`
 - License: `MIT`
-- Package SHA256: `e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723`
-- Archive SHA256: `d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2`
+- Package SHA256: `1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa`
+- Archive SHA256: `b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7`
 - Install simulated: `True`
 
 ## Compatibility
diff --git a/reports/review-studio.html b/reports/review-studio.html
index 04f68bf0..1f1177dd 100644
--- a/reports/review-studio.html
+++ b/reports/review-studio.html
@@ -286,28 +286,28 @@
       <div class="decision">
         <span>审查结论</span>
         <strong>review</strong>
-        <span>Score 90/100</span>
+        <span>Score 89/100</span>
       </div>
     </header>
 
     <section>
       <h2>核心指标</h2>
-      <div class="metrics"><article class='metric'><span>Skill IR</span><strong>2.0.0</strong><p>5 targets in platform-neutral contract</p></article><article class='metric'><span>Compiler</span><strong>5/5</strong><p>target contracts compiled from Skill IR</p></article><article class='metric'><span>Output Delta</span><strong>100.0</strong><p>5 cases; 1 file-backed</p></article><article class='metric'><span>Exec Runs</span><strong>10</strong><p>command 10; model 0; recorded 0</p></article><article class='metric'><span>Blind A/B</span><strong>5</strong><p>review pairs hide baseline vs with-skill labels</p></article><article class='metric'><span>Review A/B</span><strong>0/5</strong><p>adjudication decisions; pending 5</p></article><article class='metric'><span>Blueprint</span><strong>20/20</strong><p>2.0 coverage; evidence pending 4</p></article><article class='metric'><span>Runtime</span><strong>5/5</strong><p>target conformance pass rate</p></article><article class='metric'><span>Perm Probe</span><strong>4/4</strong><p>0 native enforcement targets</p></article><article class='metric'><span>Trust</span><strong>0</strong><p>82 scripts scanned; secrets found</p></article><article class='metric'><span>Py Compat</span><strong>0</strong><p>140 files scanned for Python 3.11</p></article><article class='metric'><span>Atlas</span><strong>5</strong><p>12 scanned skills; route collisions</p></article><article class='metric'><span>Drift</span><strong>low</strong><p>1 metadata events; 0 missed triggers</p></article><article class='metric'><span>Waivers</span><strong>0</strong><p>0 gates covered; human risk decisions</p></article><article class='metric'><span>Intake</span><strong>4/4</strong><p>0 valid submissions; 0 invalid</p></article><article class='metric'><span>Claim Guard</span><strong>0</strong><p>67 public surfaces scanned</p></article><article class='metric'><span>Notes</span><strong>0/0</strong><p>0 open blocker annotations</p></article><article class='metric'><span>Registry</span><strong>1.1.0</strong><p>5 targets; MIT license</p></article><article class='metric'><span>Archive</span><strong>pass</strong><p>547 zip entries; package verification</p></article><article class='metric'><span>Install</span><strong>pass</strong><p>4 adapters; 12 permissions enforced; 0 permission failures</p></article><article class='metric'><span>Upgrade</span><strong>minor</strong><p>declared minor; 0 breaking changes</p></article></div>
+      <div class="metrics"><article class='metric'><span>Skill IR</span><strong>2.0.0</strong><p>5 targets in platform-neutral contract</p></article><article class='metric'><span>Compiler</span><strong>5/5</strong><p>target contracts compiled from Skill IR</p></article><article class='metric'><span>Output Delta</span><strong>100.0</strong><p>5 cases; 1 file-backed</p></article><article class='metric'><span>Exec Runs</span><strong>10</strong><p>command 10; model 0; recorded 0</p></article><article class='metric'><span>Blind A/B</span><strong>5</strong><p>review pairs hide baseline vs with-skill labels</p></article><article class='metric'><span>Review A/B</span><strong>0/5</strong><p>adjudication decisions; pending 5</p></article><article class='metric'><span>Blueprint</span><strong>20/20</strong><p>2.0 coverage; evidence pending 4</p></article><article class='metric'><span>Runtime</span><strong>5/5</strong><p>target conformance pass rate</p></article><article class='metric'><span>Perm Probe</span><strong>4/4</strong><p>0 native enforcement targets</p></article><article class='metric'><span>Trust</span><strong>0</strong><p>83 scripts scanned; secrets found</p></article><article class='metric'><span>Py Compat</span><strong>0</strong><p>142 files scanned for Python 3.11</p></article><article class='metric'><span>Arch Debt</span><strong>3</strong><p>1438 largest lines; 55 CLI handlers</p></article><article class='metric'><span>Atlas</span><strong>5</strong><p>12 scanned skills; route collisions</p></article><article class='metric'><span>Drift</span><strong>low</strong><p>1 metadata events; 0 missed triggers</p></article><article class='metric'><span>Waivers</span><strong>0</strong><p>0 gates covered; human risk decisions</p></article><article class='metric'><span>Intake</span><strong>4/4</strong><p>0 valid submissions; 0 invalid</p></article><article class='metric'><span>Claim Guard</span><strong>0</strong><p>68 public surfaces scanned</p></article><article class='metric'><span>Notes</span><strong>0/0</strong><p>0 open blocker annotations</p></article><article class='metric'><span>Registry</span><strong>1.1.0</strong><p>5 targets; MIT license</p></article><article class='metric'><span>Archive</span><strong>pass</strong><p>551 zip entries; package verification</p></article><article class='metric'><span>Install</span><strong>pass</strong><p>4 adapters; 12 permissions enforced; 0 permission failures</p></article><article class='metric'><span>Upgrade</span><strong>minor</strong><p>declared minor; 0 breaking changes</p></article></div>
     </section>
 
     <section>
       <h2>审查闸门</h2>
-      <div class="gates"><article class='gate pass'><div><span>通过</span><h3>意图画布</h3></div><p>intent confidence 100/100; Intent is clear enough to package the first routeable version.</p><footer>reports/intent-confidence.json <a href='intent-confidence.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>触发实验</h3></div><p>13 trigger cases; 0 misroutes; 0 ambiguous</p><footer>reports/route_scorecard.json <a href='route_scorecard.md'>证据</a></footer></article><article class='gate warn'><div><span>关注</span><h3>输出实验</h3></div><p>5/5 cases; with-skill 100.0; baseline 0.0; file-backed 1; near-neighbor 1; blind A/B 5; exec 10; command 10; model 0; recorded 0; reviewed 0/5; review pending 5</p><footer>reports/output_quality_scorecard.json <a href='output_quality_scorecard.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>上下文</h3></div><p>initial load 944/1000; quality density 137.7</p><footer>reports/context_budget.json <a href='context_budget.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>运行矩阵</h3></div><p>5 / 5 targets pass</p><footer>reports/conformance_matrix.json <a href='conformance_matrix.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>信任报告</h3></div><p>0 secrets; 82 scripts; 3 network-capable scripts; 0 help smoke failures</p><footer>reports/security_trust_report.json <a href='security_trust_report.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>Python 兼容</h3></div><p>Python 3.11; 140 files; 0 compatibility issues; 0 syntax; 0 f-string 3.11 hazards</p><footer>reports/python_compatibility.json <a href='python_compatibility.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>权限批准</h3></div><p>3/3 permissions approved; gaps 0; required file_write, network, subprocess</p><footer>reports/security_trust_report.json + security/permission_policy.json <a href='../security/permission_policy.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>权限探针</h3></div><p>4/4 targets probed; native 0; metadata fallback 4; residual risks 4</p><footer>reports/runtime_permission_probes.json <a href='runtime_permission_probes.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>组合治理</h3></div><p>12 skills, 1 actionable; 0 actionable route collisions; 0 actionable owner gaps; 0 actionable stale; 0 actionable drift; 24 scoped non-actionable issues</p><footer>reports/skill_atlas.json <a href='skill_atlas.html'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>运营回路</h3></div><p>1 metadata events; adoption 0; missed 0; bad-output 0; risk low</p><footer>reports/adoption_drift_report.json <a href='adoption_drift_report.md'>证据</a></footer></article><article class='gate warn'><div><span>关注</span><h3>人工批准</h3></div><p>0 active waivers; 1 warning gates still need reviewer decision</p><footer>reports/review_waivers.json <a href='review_waivers.md'>证据</a></footer></article><article class='gate warn'><div><span>关注</span><h3>世界证据</h3></div><p>4 pending world-class evidence entries; 1 human pending; 3 external pending; overclaim guard true</p><footer>reports/world_class_evidence_ledger.json <a href='world_class_evidence_ledger.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>注册审计</h3></div><p>yao-meta-skill 1.1.0; 6/6 compatibility entries pass; install pass with 4 adapters; installer permissions 12 enforced / 0 failures</p><footer>reports/registry_audit.json + reports/install_simulation.json <a href='registry_audit.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>发布路线</h3></div><p>0 promote; 3 keep current; 0 blocked; upgrade minor declared / minor recommended</p><footer>reports/promotion_decisions.json + reports/upgrade_check.json + docs/migration-v2.md <a href='promotion_decisions.md'>证据</a></footer></article></div>
+      <div class="gates"><article class='gate pass'><div><span>通过</span><h3>意图画布</h3></div><p>intent confidence 100/100; Intent is clear enough to package the first routeable version.</p><footer>reports/intent-confidence.json <a href='intent-confidence.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>触发实验</h3></div><p>13 trigger cases; 0 misroutes; 0 ambiguous</p><footer>reports/route_scorecard.json <a href='route_scorecard.md'>证据</a></footer></article><article class='gate warn'><div><span>关注</span><h3>输出实验</h3></div><p>5/5 cases; with-skill 100.0; baseline 0.0; file-backed 1; near-neighbor 1; blind A/B 5; exec 10; command 10; model 0; recorded 0; reviewed 0/5; review pending 5</p><footer>reports/output_quality_scorecard.json <a href='output_quality_scorecard.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>上下文</h3></div><p>initial load 944/1000; quality density 137.7</p><footer>reports/context_budget.json <a href='context_budget.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>运行矩阵</h3></div><p>5 / 5 targets pass</p><footer>reports/conformance_matrix.json <a href='conformance_matrix.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>信任报告</h3></div><p>0 secrets; 83 scripts; 3 network-capable scripts; 0 help smoke failures</p><footer>reports/security_trust_report.json <a href='security_trust_report.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>Python 兼容</h3></div><p>Python 3.11; 142 files; 0 compatibility issues; 0 syntax; 0 f-string 3.11 hazards</p><footer>reports/python_compatibility.json <a href='python_compatibility.md'>证据</a></footer></article><article class='gate warn'><div><span>关注</span><h3>架构维护</h3></div><p>139 Python files; 3 hotspots; 0 blockers; largest 1438 lines; 55 CLI handlers</p><footer>reports/architecture_maintainability.json <a href='architecture_maintainability.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>权限批准</h3></div><p>3/3 permissions approved; gaps 0; required file_write, network, subprocess</p><footer>reports/security_trust_report.json + security/permission_policy.json <a href='../security/permission_policy.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>权限探针</h3></div><p>4/4 targets probed; native 0; metadata fallback 4; residual risks 4</p><footer>reports/runtime_permission_probes.json <a href='runtime_permission_probes.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>组合治理</h3></div><p>12 skills, 1 actionable; 0 actionable route collisions; 0 actionable owner gaps; 0 actionable stale; 0 actionable drift; 24 scoped non-actionable issues</p><footer>reports/skill_atlas.json <a href='skill_atlas.html'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>运营回路</h3></div><p>1 metadata events; adoption 0; missed 0; bad-output 0; risk low</p><footer>reports/adoption_drift_report.json <a href='adoption_drift_report.md'>证据</a></footer></article><article class='gate warn'><div><span>关注</span><h3>人工批准</h3></div><p>0 active waivers; 2 warning gates still need reviewer decision</p><footer>reports/review_waivers.json <a href='review_waivers.md'>证据</a></footer></article><article class='gate warn'><div><span>关注</span><h3>世界证据</h3></div><p>4 pending world-class evidence entries; 1 human pending; 3 external pending; overclaim guard true</p><footer>reports/world_class_evidence_ledger.json <a href='world_class_evidence_ledger.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>注册审计</h3></div><p>yao-meta-skill 1.1.0; 6/6 compatibility entries pass; install pass with 4 adapters; installer permissions 12 enforced / 0 failures</p><footer>reports/registry_audit.json + reports/install_simulation.json <a href='registry_audit.md'>证据</a></footer></article><article class='gate pass'><div><span>通过</span><h3>发布路线</h3></div><p>0 promote; 3 keep current; 0 blocked; upgrade minor declared / minor recommended</p><footer>reports/promotion_decisions.json + reports/upgrade_check.json + docs/migration-v2.md <a href='promotion_decisions.md'>证据</a></footer></article></div>
     </section>
 
     <div class="twocol">
       <section><h2>阻断事项</h2><p class='muted'>无。</p></section>
-      <section><h2>关注事项</h2><ul class='issues'><li><strong>输出实验</strong><span>5/5 cases; with-skill 100.0; baseline 0.0; file-backed 1; near-neighbor 1; blind A/B 5; exec 10; command 10; model 0; recorded 0; reviewed 0/5; review pending 5</span></li><li><strong>人工批准</strong><span>0 active waivers; 1 warning gates still need reviewer decision</span></li><li><strong>世界证据</strong><span>4 pending world-class evidence entries; 1 human pending; 3 external pending; overclaim guard true</span></li></ul></section>
+      <section><h2>关注事项</h2><ul class='issues'><li><strong>输出实验</strong><span>5/5 cases; with-skill 100.0; baseline 0.0; file-backed 1; near-neighbor 1; blind A/B 5; exec 10; command 10; model 0; recorded 0; reviewed 0/5; review pending 5</span></li><li><strong>架构维护</strong><span>139 Python files; 3 hotspots; 0 blockers; largest 1438 lines; 55 CLI handlers</span></li><li><strong>人工批准</strong><span>0 active waivers; 2 warning gates still need reviewer decision</span></li><li><strong>世界证据</strong><span>4 pending world-class evidence entries; 1 human pending; 3 external pending; overclaim guard true</span></li></ul></section>
     </div>
 
     <section id="actions">
       <h2>修复动作</h2>
-      <div class="actions-grid"><article class='action-card warn'><div><span>关注</span><h3>输出实验</h3></div><p>补足 output eval 覆盖、execution evidence、blind A/B 和 reviewer adjudication。</p><small>没有输出质量和人工盲评证据时，Skill 只能证明会触发，不能证明输出真的更好且经得起审查。</small><dl><dt>修复位置</dt><dd>evals/output/cases.jsonl + reports/output_quality_scorecard.md + reports/output_review_decisions.json + reports/output_review_adjudication.md</dd><dt>验证命令</dt><dd><code>python3 scripts/adjudicate_output_review.py --write-template &amp;&amp; python3 scripts/yao.py output-review</code></dd></dl><ul class='source-ref-list'><li><a href='../evals/output/cases.jsonl'>evals/output/cases.jsonl:1</a><small>output eval cases · eval</small></li><li><a href='output_quality_scorecard.md'>reports/output_quality_scorecard.md:1</a><small>output scorecard · report</small></li><li><a href='output_execution_runs.md'>reports/output_execution_runs.md:1</a><small>output execution runs · report</small></li><li><a href='output_blind_review_pack.md'>reports/output_blind_review_pack.md:1</a><small>blind A/B review pack · report</small></li><li><a href='output_review_decisions.json'>reports/output_review_decisions.json:5</a><small>review decisions template · report</small></li><li><a href='output_review_adjudication.md'>reports/output_review_adjudication.md:1</a><small>review adjudication · report</small></li></ul><footer>reports/output_quality_scorecard.json <a href='output_quality_scorecard.md'>打开证据</a></footer></article><article class='action-card warn'><div><span>关注</span><h3>人工批准</h3></div><p>对保留的 warning 写入 reviewer、理由、范围和到期时间，或修掉 warning。</p><small>warning 可以被接受，但必须可审计、会过期，并且不能掩盖 blocker。</small><dl><dt>修复位置</dt><dd>reports/review_waivers.md</dd><dt>验证命令</dt><dd><code>python3 scripts/render_review_waivers.py .</code></dd></dl><ul class='source-ref-list'><li><a href='review_waivers.md'>reports/review_waivers.md:1</a><small>waiver ledger · report</small></li><li><a href='../references/review-waiver-method.md'>references/review-waiver-method.md:1</a><small>waiver method · method</small></li></ul><footer>reports/review_waivers.json <a href='review_waivers.md'>打开证据</a></footer></article><article class='action-card warn'><div><span>关注</span><h3>世界证据</h3></div><p>补齐 provider、真人盲评、原生权限执行和真实客户端遥测证据，或明确本次发布不声明 world-class 完成。</p><small>世界级结论必须来自已接受的外部/人工证据；计划、metadata fallback、待评审和本地命令都不能替代完成证据。</small><dl><dt>修复位置</dt><dd>reports/world_class_evidence_ledger.md + reports/world_class_evidence_plan.md + reports/world_class_evidence_intake.md</dd><dt>验证命令</dt><dd><code>python3 scripts/yao.py world-class-ledger . &amp;&amp; python3 scripts/yao.py review-studio .</code></dd></dl><ul class='source-ref-list'><li><a href='world_class_evidence_ledger.md'>reports/world_class_evidence_ledger.md:1</a><small>world-class evidence ledger · report</small></li><li><a href='world_class_evidence_plan.md'>reports/world_class_evidence_plan.md:1</a><small>world-class evidence plan · report</small></li><li><a href='world_class_evidence_intake.md'>reports/world_class_evidence_intake.md:1</a><small>world-class evidence intake · report</small></li><li><a href='world_class_claim_guard.md'>reports/world_class_claim_guard.md:1</a><small>world-class claim guard · report</small></li><li><a href='../evidence/world_class/intake.schema.json'>evidence/world_class/intake.schema.json:4</a><small>evidence intake schema · schema</small></li><li><a href='../evidence/world_class/templates/provider-holdout.intake.json'>evidence/world_class/templates/provider-holdout.intake.json:3</a><small>provider intake template · template</small></li><li><a href='../evidence/world_class/templates/human-adjudication.intake.json'>evidence/world_class/templates/human-adjudication.intake.json:3</a><small>human intake template · template</small></li><li><a href='skill_os2_audit.md'>reports/skill_os2_audit.md:1</a><small>Skill OS 2.0 audit · report</small></li><li><a href='output_review_decisions.json'>reports/output_review_decisions.json:6</a><small>human review decisions · report</small></li><li><a href='runtime_permission_probes.md'>reports/runtime_permission_probes.md:1</a><small>runtime permission probes · report</small></li><li><a href='adoption_drift_report.md'>reports/adoption_drift_report.md:1</a><small>adoption drift · report</small></li></ul><footer>reports/world_class_evidence_ledger.json <a href='world_class_evidence_ledger.md'>打开证据</a></footer></article></div>
+      <div class="actions-grid"><article class='action-card warn'><div><span>关注</span><h3>输出实验</h3></div><p>补足 output eval 覆盖、execution evidence、blind A/B 和 reviewer adjudication。</p><small>没有输出质量和人工盲评证据时，Skill 只能证明会触发，不能证明输出真的更好且经得起审查。</small><dl><dt>修复位置</dt><dd>evals/output/cases.jsonl + reports/output_quality_scorecard.md + reports/output_review_decisions.json + reports/output_review_adjudication.md</dd><dt>验证命令</dt><dd><code>python3 scripts/adjudicate_output_review.py --write-template &amp;&amp; python3 scripts/yao.py output-review</code></dd></dl><ul class='source-ref-list'><li><a href='../evals/output/cases.jsonl'>evals/output/cases.jsonl:1</a><small>output eval cases · eval</small></li><li><a href='output_quality_scorecard.md'>reports/output_quality_scorecard.md:1</a><small>output scorecard · report</small></li><li><a href='output_execution_runs.md'>reports/output_execution_runs.md:1</a><small>output execution runs · report</small></li><li><a href='output_blind_review_pack.md'>reports/output_blind_review_pack.md:1</a><small>blind A/B review pack · report</small></li><li><a href='output_review_decisions.json'>reports/output_review_decisions.json:5</a><small>review decisions template · report</small></li><li><a href='output_review_adjudication.md'>reports/output_review_adjudication.md:1</a><small>review adjudication · report</small></li></ul><footer>reports/output_quality_scorecard.json <a href='output_quality_scorecard.md'>打开证据</a></footer></article><article class='action-card warn'><div><span>关注</span><h3>架构维护</h3></div><p>处理大文件和 CLI command surface 的维护性热点，优先拆分稳定职责边界。</p><small>Meta Skill 的门禁、报告和 CLI 会持续增长；如果不把架构债纳入审查，后续能力会越来越难验证和迁移。</small><dl><dt>修复位置</dt><dd>reports/architecture_maintainability.md + scripts/yao.py + scripts/render_review_studio.py</dd><dt>验证命令</dt><dd><code>python3 scripts/yao.py architecture-audit .</code></dd></dl><ul class='source-ref-list'><li><a href='architecture_maintainability.md'>reports/architecture_maintainability.md:1</a><small>architecture maintainability · report</small></li><li><a href='../scripts/yao.py'>scripts/yao.py:124</a><small>Yao CLI orchestrator · source</small></li><li><a href='../scripts/render_review_studio.py'>scripts/render_review_studio.py:387</a><small>Review Studio renderer · source</small></li><li><a href='../scripts/render_review_viewer.py'>scripts/render_review_viewer.py:19</a><small>review viewer renderer · source</small></li></ul><footer>reports/architecture_maintainability.json <a href='architecture_maintainability.md'>打开证据</a></footer></article><article class='action-card warn'><div><span>关注</span><h3>人工批准</h3></div><p>对保留的 warning 写入 reviewer、理由、范围和到期时间，或修掉 warning。</p><small>warning 可以被接受，但必须可审计、会过期，并且不能掩盖 blocker。</small><dl><dt>修复位置</dt><dd>reports/review_waivers.md</dd><dt>验证命令</dt><dd><code>python3 scripts/render_review_waivers.py .</code></dd></dl><ul class='source-ref-list'><li><a href='review_waivers.md'>reports/review_waivers.md:1</a><small>waiver ledger · report</small></li><li><a href='../references/review-waiver-method.md'>references/review-waiver-method.md:1</a><small>waiver method · method</small></li></ul><footer>reports/review_waivers.json <a href='review_waivers.md'>打开证据</a></footer></article><article class='action-card warn'><div><span>关注</span><h3>世界证据</h3></div><p>补齐 provider、真人盲评、原生权限执行和真实客户端遥测证据，或明确本次发布不声明 world-class 完成。</p><small>世界级结论必须来自已接受的外部/人工证据；计划、metadata fallback、待评审和本地命令都不能替代完成证据。</small><dl><dt>修复位置</dt><dd>reports/world_class_evidence_ledger.md + reports/world_class_evidence_plan.md + reports/world_class_evidence_intake.md</dd><dt>验证命令</dt><dd><code>python3 scripts/yao.py world-class-ledger . &amp;&amp; python3 scripts/yao.py review-studio .</code></dd></dl><ul class='source-ref-list'><li><a href='world_class_evidence_ledger.md'>reports/world_class_evidence_ledger.md:1</a><small>world-class evidence ledger · report</small></li><li><a href='world_class_evidence_plan.md'>reports/world_class_evidence_plan.md:1</a><small>world-class evidence plan · report</small></li><li><a href='world_class_evidence_intake.md'>reports/world_class_evidence_intake.md:1</a><small>world-class evidence intake · report</small></li><li><a href='world_class_claim_guard.md'>reports/world_class_claim_guard.md:1</a><small>world-class claim guard · report</small></li><li><a href='../evidence/world_class/intake.schema.json'>evidence/world_class/intake.schema.json:4</a><small>evidence intake schema · schema</small></li><li><a href='../evidence/world_class/templates/provider-holdout.intake.json'>evidence/world_class/templates/provider-holdout.intake.json:3</a><small>provider intake template · template</small></li><li><a href='../evidence/world_class/templates/human-adjudication.intake.json'>evidence/world_class/templates/human-adjudication.intake.json:3</a><small>human intake template · template</small></li><li><a href='skill_os2_audit.md'>reports/skill_os2_audit.md:1</a><small>Skill OS 2.0 audit · report</small></li><li><a href='output_review_decisions.json'>reports/output_review_decisions.json:6</a><small>human review decisions · report</small></li><li><a href='runtime_permission_probes.md'>reports/runtime_permission_probes.md:1</a><small>runtime permission probes · report</small></li><li><a href='adoption_drift_report.md'>reports/adoption_drift_report.md:1</a><small>adoption drift · report</small></li></ul><footer>reports/world_class_evidence_ledger.json <a href='world_class_evidence_ledger.md'>打开证据</a></footer></article></div>
     </section>
 
     <section id="annotations">
@@ -323,7 +323,7 @@
       </div>
       <div class="panel">
         <h2>证据路径</h2>
-        <ul class="evidence"><li><strong>skill_overview</strong><span>reports/skill-overview.html</span></li><li><strong>review_viewer</strong><span>reports/review-viewer.html</span></li><li><strong>output_eval</strong><span>reports/output_quality_scorecard.md</span></li><li><strong>output_execution</strong><span>reports/output_execution_runs.md</span></li><li><strong>output_blind_review</strong><span>reports/output_blind_review_pack.md</span></li><li><strong>output_review_decisions</strong><span>reports/output_review_decisions.json</span></li><li><strong>output_review_adjudication</strong><span>reports/output_review_adjudication.md</span></li><li><strong>benchmark_reproducibility</strong><span>reports/benchmark_reproducibility.md</span></li><li><strong>skill_os2_coverage</strong><span>reports/skill_os2_coverage.md</span></li><li><strong>runtime_conformance</strong><span>reports/conformance_matrix.md</span></li><li><strong>trust_report</strong><span>reports/security_trust_report.md</span></li><li><strong>python_compatibility</strong><span>reports/python_compatibility.md</span></li><li><strong>permission_policy</strong><span>security/permission_policy.md</span></li><li><strong>runtime_permissions</strong><span>reports/runtime_permission_probes.md</span></li><li><strong>skill_atlas</strong><span>reports/skill_atlas.html</span></li><li><strong>compiled_targets</strong><span>reports/compiled_targets.md</span></li><li><strong>adoption_drift</strong><span>reports/adoption_drift_report.md</span></li><li><strong>review_waivers</strong><span>reports/review_waivers.md</span></li><li><strong>review_annotations</strong><span>reports/review_annotations.md</span></li><li><strong>world_class_evidence_plan</strong><span>reports/world_class_evidence_plan.md</span></li><li><strong>world_class_evidence_ledger</strong><span>reports/world_class_evidence_ledger.md</span></li><li><strong>world_class_evidence_intake</strong><span>reports/world_class_evidence_intake.md</span></li><li><strong>world_class_claim_guard</strong><span>reports/world_class_claim_guard.md</span></li><li><strong>registry_audit</strong><span>reports/registry_audit.md</span></li><li><strong>package_verification</strong><span>reports/package_verification.md</span></li><li><strong>install_simulation</strong><span>reports/install_simulation.md</span></li><li><strong>upgrade_check</strong><span>reports/upgrade_check.md</span></li><li><strong>migration</strong><span>docs/migration-v2.md</span></li></ul>
+        <ul class="evidence"><li><strong>skill_overview</strong><span>reports/skill-overview.html</span></li><li><strong>review_viewer</strong><span>reports/review-viewer.html</span></li><li><strong>output_eval</strong><span>reports/output_quality_scorecard.md</span></li><li><strong>output_execution</strong><span>reports/output_execution_runs.md</span></li><li><strong>output_blind_review</strong><span>reports/output_blind_review_pack.md</span></li><li><strong>output_review_decisions</strong><span>reports/output_review_decisions.json</span></li><li><strong>output_review_adjudication</strong><span>reports/output_review_adjudication.md</span></li><li><strong>benchmark_reproducibility</strong><span>reports/benchmark_reproducibility.md</span></li><li><strong>skill_os2_coverage</strong><span>reports/skill_os2_coverage.md</span></li><li><strong>runtime_conformance</strong><span>reports/conformance_matrix.md</span></li><li><strong>trust_report</strong><span>reports/security_trust_report.md</span></li><li><strong>python_compatibility</strong><span>reports/python_compatibility.md</span></li><li><strong>architecture_maintainability</strong><span>reports/architecture_maintainability.md</span></li><li><strong>permission_policy</strong><span>security/permission_policy.md</span></li><li><strong>runtime_permissions</strong><span>reports/runtime_permission_probes.md</span></li><li><strong>skill_atlas</strong><span>reports/skill_atlas.html</span></li><li><strong>compiled_targets</strong><span>reports/compiled_targets.md</span></li><li><strong>adoption_drift</strong><span>reports/adoption_drift_report.md</span></li><li><strong>review_waivers</strong><span>reports/review_waivers.md</span></li><li><strong>review_annotations</strong><span>reports/review_annotations.md</span></li><li><strong>world_class_evidence_plan</strong><span>reports/world_class_evidence_plan.md</span></li><li><strong>world_class_evidence_ledger</strong><span>reports/world_class_evidence_ledger.md</span></li><li><strong>world_class_evidence_intake</strong><span>reports/world_class_evidence_intake.md</span></li><li><strong>world_class_claim_guard</strong><span>reports/world_class_claim_guard.md</span></li><li><strong>registry_audit</strong><span>reports/registry_audit.md</span></li><li><strong>package_verification</strong><span>reports/package_verification.md</span></li><li><strong>install_simulation</strong><span>reports/install_simulation.md</span></li><li><strong>upgrade_check</strong><span>reports/upgrade_check.md</span></li><li><strong>migration</strong><span>docs/migration-v2.md</span></li></ul>
       </div>
     </section>
 
@@ -363,12 +363,12 @@
     </section>
 
     <section id="trust" class="twocol">
-      <div class="panel"><h2>信任报告</h2><dl class='kv-grid'><div><dt>Secret</dt><dd>0</dd></div><div><dt>脚本数</dt><dd>82</dd></div><div><dt>网络脚本</dt><dd>3</dd></div><div><dt>Help 失败</dt><dd>0</dd></div><div><dt>包体哈希</dt><dd><code>e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723</code></dd></div></dl></div>
+      <div class="panel"><h2>信任报告</h2><dl class='kv-grid'><div><dt>Secret</dt><dd>0</dd></div><div><dt>脚本数</dt><dd>83</dd></div><div><dt>网络脚本</dt><dd>3</dd></div><div><dt>Help 失败</dt><dd>0</dd></div><div><dt>包体哈希</dt><dd><code>1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa</code></dd></div></dl></div>
       <div class="panel"><h2>安全边界</h2><p>高风险 secret、远程 inline execution、缺失依赖策略或无法解释的脚本接口应阻断 governed release。</p></div>
     </section>
 
     <section class="twocol">
-      <div class="panel"><h2>Python 兼容</h2><dl class='kv-grid'><div><dt>目标 Python</dt><dd>3.11</dd></div><div><dt>文件数</dt><dd>140</dd></div><div><dt>问题数</dt><dd>0</dd></div><div><dt>语法错误</dt><dd>0</dd></div><div><dt>F-string 3.11</dt><dd>0</dd></div></dl></div>
+      <div class="panel"><h2>Python 兼容</h2><dl class='kv-grid'><div><dt>目标 Python</dt><dd>3.11</dd></div><div><dt>文件数</dt><dd>142</dd></div><div><dt>问题数</dt><dd>0</dd></div><div><dt>语法错误</dt><dd>0</dd></div><div><dt>F-string 3.11</dt><dd>0</dd></div></dl></div>
       <div class="panel"><h2>解释器边界</h2><p>CI 和发布审查以 Python 3.11 兼容为底线；本地更高版本允许的新语法不能绕过兼容门禁。</p></div>
     </section>
 
@@ -393,7 +393,7 @@
     </section>
 
     <section id="waivers" class="twocol">
-      <div class="panel"><h2>人工批准</h2><p>0 active waivers; 1 warning gates still need reviewer decision</p></div>
+      <div class="panel"><h2>人工批准</h2><p>0 active waivers; 2 warning gates still need reviewer decision</p></div>
       <div class="panel"><h2>批准台账</h2><dl class='kv-grid'><div><dt>Waiver Count</dt><dd>0</dd></div><div><dt>Active Count</dt><dd>0</dd></div><div><dt>Expired Count</dt><dd>0</dd></div><div><dt>Invalid Count</dt><dd>0</dd></div><div><dt>覆盖 Gate</dt><dd>0</dd></div></dl></div>
     </section>
 
@@ -419,18 +419,18 @@
     </section>
 
     <section class="twocol">
-      <div class="panel"><h2>声明守卫</h2><dl class='kv-grid'><div><dt>台账可声明</dt><dd>否</dd></div><div><dt>台账待补</dt><dd>4</dd></div><div><dt>声明面</dt><dd>67</dd></div><div><dt>违规数</dt><dd>0</dd></div><div><dt>Overclaim Guard Active</dt><dd>是</dd></div></dl></div>
+      <div class="panel"><h2>声明守卫</h2><dl class='kv-grid'><div><dt>台账可声明</dt><dd>否</dd></div><div><dt>台账待补</dt><dd>4</dd></div><div><dt>声明面</dt><dd>68</dd></div><div><dt>违规数</dt><dd>0</dd></div><div><dt>Overclaim Guard Active</dt><dd>是</dd></div></dl></div>
       <div class="panel"><h2>声明边界</h2><p>claim guard 扫描 README、docs 和 reports 中的完成态表述；ledger 未 ready 时，任何英文完成断言、true 状态声明或中文完成态都会阻断发布审查。</p></div>
     </section>
 
     <section id="registry" class="twocol">
       <div class="panel"><h2>注册审计</h2><p>yao-meta-skill 1.1.0; 6/6 compatibility entries pass; install pass with 4 adapters; installer permissions 12 enforced / 0 failures</p></div>
-      <div class="panel"><h2>包体元数据</h2><dl class='kv-grid'><div><dt>名称</dt><dd>yao-meta-skill</dd></div><div><dt>版本</dt><dd>1.1.0</dd></div><div><dt>Maturity</dt><dd>governed</dd></div><div><dt>Owner</dt><dd>Yao Team</dd></div><div><dt>License</dt><dd>MIT</dd></div><div><dt>信任级别</dt><dd>local</dd></div><div><dt>目标平台</dt><dd>openai, claude, generic, agent-skills-compatible, vscode</dd></div><div><dt>兼容通过</dt><dd>6/6</dd></div><div><dt>归档哈希</dt><dd><code>d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2</code></dd></div></dl></div>
+      <div class="panel"><h2>包体元数据</h2><dl class='kv-grid'><div><dt>名称</dt><dd>yao-meta-skill</dd></div><div><dt>版本</dt><dd>1.1.0</dd></div><div><dt>Maturity</dt><dd>governed</dd></div><div><dt>Owner</dt><dd>Yao Team</dd></div><div><dt>License</dt><dd>MIT</dd></div><div><dt>信任级别</dt><dd>local</dd></div><div><dt>目标平台</dt><dd>openai, claude, generic, agent-skills-compatible, vscode</dd></div><div><dt>兼容通过</dt><dd>6/6</dd></div><div><dt>归档哈希</dt><dd><code>b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7</code></dd></div></dl></div>
     </section>
 
     <section id="release" class="twocol">
       <div class="panel"><h2>发布路线</h2><p>0 promote; 3 keep current; 0 blocked; upgrade minor declared / minor recommended</p></div>
-      <div class="panel"><h2>包体验证</h2><dl class='kv-grid'><div><dt>目标数</dt><dd>4</dd></div><div><dt>Adapter</dt><dd>4</dd></div><div><dt>归档存在</dt><dd>是</dd></div><div><dt>Zip 条目</dt><dd>547</dd></div><div><dt>失败数</dt><dd>0</dd></div><div><dt>警告数</dt><dd>0</dd></div><div><dt>归档哈希</dt><dd><code>d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2</code></dd></div></dl></div>
+      <div class="panel"><h2>包体验证</h2><dl class='kv-grid'><div><dt>目标数</dt><dd>4</dd></div><div><dt>Adapter</dt><dd>4</dd></div><div><dt>归档存在</dt><dd>是</dd></div><div><dt>Zip 条目</dt><dd>551</dd></div><div><dt>失败数</dt><dd>0</dd></div><div><dt>警告数</dt><dd>0</dd></div><div><dt>归档哈希</dt><dd><code>b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7</code></dd></div></dl></div>
     </section>
 
     <section class="twocol">
diff --git a/reports/review-studio.json b/reports/review-studio.json
index 942cc047..9829460d 100644
--- a/reports/review-studio.json
+++ b/reports/review-studio.json
@@ -4,11 +4,11 @@
   "skill_dir": ".",
   "summary": {
     "decision": "review",
-    "world_class_score": 90,
-    "gate_count": 15,
+    "world_class_score": 89,
+    "gate_count": 16,
     "blocker_count": 0,
-    "warning_count": 3,
-    "action_count": 3,
+    "warning_count": 4,
+    "action_count": 4,
     "annotation_count": 0,
     "open_annotation_count": 0,
     "open_annotation_blocker_count": 0,
@@ -59,7 +59,7 @@
       "key": "trust-report",
       "label": "信任报告",
       "status": "pass",
-      "detail": "0 secrets; 82 scripts; 3 network-capable scripts; 0 help smoke failures",
+      "detail": "0 secrets; 83 scripts; 3 network-capable scripts; 0 help smoke failures",
       "evidence": "reports/security_trust_report.json",
       "link": "security_trust_report.md"
     },
@@ -67,10 +67,18 @@
       "key": "python-compat",
       "label": "Python 兼容",
       "status": "pass",
-      "detail": "Python 3.11; 140 files; 0 compatibility issues; 0 syntax; 0 f-string 3.11 hazards",
+      "detail": "Python 3.11; 142 files; 0 compatibility issues; 0 syntax; 0 f-string 3.11 hazards",
       "evidence": "reports/python_compatibility.json",
       "link": "python_compatibility.md"
     },
+    {
+      "key": "architecture-maintainability",
+      "label": "架构维护",
+      "status": "warn",
+      "detail": "139 Python files; 3 hotspots; 0 blockers; largest 1438 lines; 55 CLI handlers",
+      "evidence": "reports/architecture_maintainability.json",
+      "link": "architecture_maintainability.md"
+    },
     {
       "key": "permission-gates",
       "label": "权限批准",
@@ -107,7 +115,7 @@
       "key": "review-waivers",
       "label": "人工批准",
       "status": "warn",
-      "detail": "0 active waivers; 1 warning gates still need reviewer decision",
+      "detail": "0 active waivers; 2 warning gates still need reviewer decision",
       "evidence": "reports/review_waivers.json",
       "link": "review_waivers.md"
     },
@@ -146,11 +154,19 @@
       "evidence": "reports/output_quality_scorecard.json",
       "link": "output_quality_scorecard.md"
     },
+    {
+      "key": "architecture-maintainability",
+      "label": "架构维护",
+      "status": "warn",
+      "detail": "139 Python files; 3 hotspots; 0 blockers; largest 1438 lines; 55 CLI handlers",
+      "evidence": "reports/architecture_maintainability.json",
+      "link": "architecture_maintainability.md"
+    },
     {
       "key": "review-waivers",
       "label": "人工批准",
       "status": "warn",
-      "detail": "0 active waivers; 1 warning gates still need reviewer decision",
+      "detail": "0 active waivers; 2 warning gates still need reviewer decision",
       "evidence": "reports/review_waivers.json",
       "link": "review_waivers.md"
     },
@@ -226,6 +242,52 @@
       "evidence_link": "output_quality_scorecard.md",
       "verification_command": "python3 scripts/adjudicate_output_review.py --write-template && python3 scripts/yao.py output-review"
     },
+    {
+      "gate_key": "architecture-maintainability",
+      "label": "架构维护",
+      "status": "warn",
+      "priority": "warning",
+      "summary": "处理大文件和 CLI command surface 的维护性热点，优先拆分稳定职责边界。",
+      "why": "Meta Skill 的门禁、报告和 CLI 会持续增长；如果不把架构债纳入审查，后续能力会越来越难验证和迁移。",
+      "source_fix": "reports/architecture_maintainability.md + scripts/yao.py + scripts/render_review_studio.py",
+      "source_refs": [
+        {
+          "path": "reports/architecture_maintainability.md",
+          "label": "architecture maintainability",
+          "kind": "report",
+          "line": 1,
+          "exists": true,
+          "link": "architecture_maintainability.md"
+        },
+        {
+          "path": "scripts/yao.py",
+          "label": "Yao CLI orchestrator",
+          "kind": "source",
+          "line": 124,
+          "exists": true,
+          "link": "../scripts/yao.py"
+        },
+        {
+          "path": "scripts/render_review_studio.py",
+          "label": "Review Studio renderer",
+          "kind": "source",
+          "line": 387,
+          "exists": true,
+          "link": "../scripts/render_review_studio.py"
+        },
+        {
+          "path": "scripts/render_review_viewer.py",
+          "label": "review viewer renderer",
+          "kind": "source",
+          "line": 19,
+          "exists": true,
+          "link": "../scripts/render_review_viewer.py"
+        }
+      ],
+      "evidence": "reports/architecture_maintainability.json",
+      "evidence_link": "architecture_maintainability.md",
+      "verification_command": "python3 scripts/yao.py architecture-audit ."
+    },
     {
       "gate_key": "review-waivers",
       "label": "人工批准",
@@ -372,6 +434,7 @@
     "runtime_conformance": "reports/conformance_matrix.md",
     "trust_report": "reports/security_trust_report.md",
     "python_compatibility": "reports/python_compatibility.md",
+    "architecture_maintainability": "reports/architecture_maintainability.md",
     "permission_policy": "security/permission_policy.md",
     "runtime_permissions": "reports/runtime_permission_probes.md",
     "skill_atlas": "reports/skill_atlas.html",
@@ -3710,7 +3773,7 @@
           "execution_mode": "command",
           "model_executed": false,
           "command_executed": true,
-          "duration_ms": 25.31,
+          "duration_ms": 25.63,
           "provider": "local-output-eval-runner",
           "model": "",
           "usage": {
@@ -3733,7 +3796,7 @@
           "execution_mode": "command",
           "model_executed": false,
           "command_executed": true,
-          "duration_ms": 25.31,
+          "duration_ms": 25.52,
           "provider": "local-output-eval-runner",
           "model": "",
           "usage": {
@@ -3761,7 +3824,7 @@
           "execution_mode": "command",
           "model_executed": false,
           "command_executed": true,
-          "duration_ms": 25.65,
+          "duration_ms": 27.26,
           "provider": "local-output-eval-runner",
           "model": "",
           "usage": {
@@ -3784,7 +3847,7 @@
           "execution_mode": "command",
           "model_executed": false,
           "command_executed": true,
-          "duration_ms": 25.46,
+          "duration_ms": 29.55,
           "provider": "local-output-eval-runner",
           "model": "",
           "usage": {
@@ -3812,7 +3875,7 @@
           "execution_mode": "command",
           "model_executed": false,
           "command_executed": true,
-          "duration_ms": 25.46,
+          "duration_ms": 29.51,
           "provider": "local-output-eval-runner",
           "model": "",
           "usage": {
@@ -3835,7 +3898,7 @@
           "execution_mode": "command",
           "model_executed": false,
           "command_executed": true,
-          "duration_ms": 25.63,
+          "duration_ms": 29.52,
           "provider": "local-output-eval-runner",
           "model": "",
           "usage": {
@@ -3862,7 +3925,7 @@
           "execution_mode": "command",
           "model_executed": false,
           "command_executed": true,
-          "duration_ms": 25.51,
+          "duration_ms": 29.37,
           "provider": "local-output-eval-runner",
           "model": "",
           "usage": {
@@ -3885,7 +3948,7 @@
           "execution_mode": "command",
           "model_executed": false,
           "command_executed": true,
-          "duration_ms": 25.72,
+          "duration_ms": 29.31,
           "provider": "local-output-eval-runner",
           "model": "",
           "usage": {
@@ -3914,7 +3977,7 @@
           "execution_mode": "command",
           "model_executed": false,
           "command_executed": true,
-          "duration_ms": 25.64,
+          "duration_ms": 29.01,
           "provider": "local-output-eval-runner",
           "model": "",
           "usage": {
@@ -4345,7 +4408,7 @@
           "label": "Trust Security",
           "status": "pass",
           "objective": "Scripts, dependencies, permissions, secrets, and package hash are reviewable for team distribution.",
-          "current": "82 scripts; secrets 0; help failures 0",
+          "current": "83 scripts; secrets 0; help failures 0",
           "command": "python3 scripts/yao.py trust .",
           "test": "python3 tests/verify_trust_check.py",
           "evidence": [
@@ -4419,7 +4482,7 @@
           "label": "Registry Distribution",
           "status": "pass",
           "objective": "Skill packages are installable, versioned, checksumed, and upgrade-reviewable.",
-          "current": "archive entries 547; install failures 0",
+          "current": "archive entries 551; install failures 0",
           "command": "python3 scripts/yao.py package . --platform openai --platform claude --platform generic --platform vscode --output-dir dist --zip && python3 scripts/yao.py registry-audit .",
           "test": "python3 tests/verify_registry_audit.py",
           "evidence": [
@@ -4460,7 +4523,7 @@
           "label": "Review Studio",
           "status": "pass",
           "objective": "One HTML page supports first-pass production review across trigger, output, runtime, trust, release, and evidence actions.",
-          "current": "15 gates; decision review; warnings 3",
+          "current": "16 gates; decision review; warnings 4",
           "command": "python3 scripts/yao.py review-studio .",
           "test": "python3 tests/verify_review_studio.py",
           "evidence": [
@@ -4778,7 +4841,7 @@
           "label": "Review Studio 2.0",
           "status": "pass",
           "objective": "Recommended Skill OS 2.0 implementation PR from the upgrade plan.",
-          "current": "15 review gates",
+          "current": "16 review gates",
           "command": "make ci-test",
           "test": "tests/verify_review_studio.py",
           "evidence": [
@@ -5011,6 +5074,7 @@
                 "scripts/python_compat_check.py",
                 "scripts/registry_audit.py",
                 "scripts/render_adoption_drift_report.py",
+                "scripts/render_architecture_maintainability.py",
                 "scripts/render_artifact_design_profile.py",
                 "scripts/render_baseline_compare.py",
                 "scripts/render_benchmark_reproducibility.py",
@@ -5062,8 +5126,7 @@
                 "scripts/upgrade_check.py",
                 "scripts/validate_skill.py",
                 "scripts/verify_package.py",
-                "scripts/yao.py",
-                "scripts/yao_cli_config.py"
+                "scripts/yao.py"
               ],
               "assets": [
                 "templates/basic_skill.md.j2",
@@ -5222,7 +5285,7 @@
                 },
                 "file_write": {
                   "required": true,
-                  "script_count": 59,
+                  "script_count": 60,
                   "scripts": [
                     "scripts/adjudicate_output_review.py",
                     "scripts/build_confusion_matrix.py",
@@ -5243,6 +5306,7 @@
                     "scripts/python_compat_check.py",
                     "scripts/registry_audit.py",
                     "scripts/render_adoption_drift_report.py",
+                    "scripts/render_architecture_maintainability.py",
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           },
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+            "timed_out": false,
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+            "stdout_excerpt": "usage: render_architecture_maintainability.py [-h] [--output-json OUTPUT_JSON]\n                                              [--output-md OUTPUT_MD]\n                                              [--warn-lines WARN_LINES]\n                   ",
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@@ -12282,6 +12386,12 @@
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@@ -12607,6 +12717,156 @@
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       }
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+          "kind": "cli-script",
+          "severity": "warn",
+          "recommendation": "Split command handlers by domain while keeping scripts/yao.py as the thin CLI orchestrator."
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+          "path": "scripts/render_review_studio.py",
+          "lines": 1196,
+          "kind": "cli-script",
+          "severity": "warn",
+          "recommendation": "Move data loading and large section renderers into focused review_studio_* modules."
+        },
+        {
+          "path": "scripts/render_review_viewer.py",
+          "lines": 983,
+          "kind": "cli-script",
+          "severity": "warn",
+          "recommendation": "Split viewer data assembly from HTML section rendering."
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+          "lines": 833,
+          "kind": "test",
+          "severity": "pass",
+          "recommendation": "Break broad integration assertions into focused verifier helpers when the next behavior change lands."
+        },
+        {
+          "path": "scripts/skill_report_model.py",
+          "lines": 782,
+          "kind": "internal-module",
+          "severity": "pass",
+          "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+        },
+        {
+          "path": "scripts/compile_skill.py",
+          "lines": 734,
+          "kind": "cli-script",
+          "severity": "pass",
+          "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+        },
+        {
+          "path": "scripts/optimize_description.py",
+          "lines": 723,
+          "kind": "cli-script",
+          "severity": "pass",
+          "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+        },
+        {
+          "path": "scripts/trust_check.py",
+          "lines": 714,
+          "kind": "internal-module",
+          "severity": "pass",
+          "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+        },
+        {
+          "path": "scripts/yao_cli_parser.py",
+          "lines": 691,
+          "kind": "internal-module",
+          "severity": "pass",
+          "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+        },
+        {
+          "path": "scripts/build_skill_atlas.py",
+          "lines": 674,
+          "kind": "cli-script",
+          "severity": "pass",
+          "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+        },
+        {
+          "path": "scripts/skill_report_layout.py",
+          "lines": 653,
+          "kind": "internal-module",
+          "severity": "pass",
+          "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+        },
+        {
+          "path": "scripts/render_reference_synthesis.py",
+          "lines": 644,
+          "kind": "cli-script",
+          "severity": "pass",
+          "recommendation": "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+        }
+      ],
+      "hotspots": [
+        {
+          "path": "scripts/yao.py",
+          "lines": 1438,
+          "kind": "cli-script",
+          "severity": "warn",
+          "recommendation": "Split command handlers by domain while keeping scripts/yao.py as the thin CLI orchestrator."
+        },
+        {
+          "path": "scripts/render_review_studio.py",
+          "lines": 1196,
+          "kind": "cli-script",
+          "severity": "warn",
+          "recommendation": "Move data loading and large section renderers into focused review_studio_* modules."
+        },
+        {
+          "path": "scripts/render_review_viewer.py",
+          "lines": 983,
+          "kind": "cli-script",
+          "severity": "warn",
+          "recommendation": "Split viewer data assembly from HTML section rendering."
+        }
+      ],
+      "actions": [
+        {
+          "path": "scripts/yao.py",
+          "severity": "warn",
+          "action": "Split command handlers by domain while keeping scripts/yao.py as the thin CLI orchestrator."
+        },
+        {
+          "path": "scripts/render_review_studio.py",
+          "severity": "warn",
+          "action": "Move data loading and large section renderers into focused review_studio_* modules."
+        },
+        {
+          "path": "scripts/render_review_viewer.py",
+          "severity": "warn",
+          "action": "Split viewer data assembly from HTML section rendering."
+        }
+      ],
+      "artifacts": {
+        "json": "reports/architecture_maintainability.json",
+        "markdown": "reports/architecture_maintainability.md"
+      }
+    },
     "context_budget": {
       "ok": true,
       "failures": [],
@@ -12615,10 +12875,10 @@
         "context_budget_tier": "production",
         "context_budget_limit": 1000,
         "skill_body_tokens": 751,
-        "other_text_tokens": 1073524,
+        "other_text_tokens": 1081013,
         "estimated_initial_load_tokens": 944,
-        "estimated_total_text_tokens": 1074275,
-        "relevant_file_count": 461,
+        "estimated_total_text_tokens": 1081764,
+        "relevant_file_count": 465,
         "unused_resource_dirs": [],
         "quality_signal_points": 130,
         "quality_density": 137.7
@@ -13462,7 +13722,7 @@
       },
       "catalog": {
         "workspace_root": ".",
-        "generated_at": "2026-06-13",
+        "generated_at": "2026-06-14",
         "skills": [
           {
             "name": "yao-meta-skill",
@@ -13509,6 +13769,7 @@
               "scripts/python_compat_check.py",
               "scripts/registry_audit.py",
               "scripts/render_adoption_drift_report.py",
+              "scripts/render_architecture_maintainability.py",
               "scripts/render_artifact_design_profile.py",
               "scripts/render_baseline_compare.py",
               "scripts/render_benchmark_reproducibility.py",
@@ -13627,8 +13888,8 @@
               "report": "reports/adoption_drift_report.json",
               "risk_band": "low",
               "event_count": 1,
-              "adoption_sample_count": 1,
-              "adoption_rate": 100.0,
+              "adoption_sample_count": 0,
+              "adoption_rate": 0,
               "candidate_count": 0
             }
           },
@@ -14291,7 +14552,7 @@
           "name": "incident-command-governor",
           "path": "examples/governed-incident-command/generated-skill",
           "reason": "review overdue by cadence monthly",
-          "age_days": 74,
+          "age_days": 75,
           "allowed_days": 31,
           "actionable": false,
           "scope": "example"
@@ -14459,7 +14720,7 @@
     "adoption_drift": {
       "ok": true,
       "schema_version": "2.0",
-      "generated_at": "2026-06-13T17:32:44Z",
+      "generated_at": "2026-06-13T17:49:00Z",
       "skill_dir": ".",
       "privacy_contract": {
         "storage": "local-first",
@@ -14894,7 +15155,7 @@
       "summary": {
         "ledger_ready_to_claim_world_class": false,
         "ledger_pending_count": 4,
-        "claim_surface_count": 67,
+        "claim_surface_count": 68,
         "violation_count": 0,
         "overclaim_guard_active": true,
         "decision": "claim-guard-pass-evidence-pending"
@@ -14959,6 +15220,10 @@
           "path": "reports/adoption_drift_report.md",
           "violation_count": 0
         },
+        {
+          "path": "reports/architecture_maintainability.md",
+          "violation_count": 0
+        },
         {
           "path": "reports/artifact-design-profile.md",
           "violation_count": 0
@@ -15229,8 +15494,8 @@
         "trust_level": "local",
         "license": "MIT",
         "checksums": {
-          "package_sha256": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723",
-          "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2"
+          "package_sha256": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa",
+          "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7"
         },
         "compatibility": {
           "openai": "pass",
@@ -15261,7 +15526,7 @@
         },
         "distribution": {
           "archive_verified": true,
-          "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2",
+          "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7",
           "package_verification": "reports/package_verification.json",
           "install_simulated": true,
           "install_simulation": "reports/install_simulation.json"
@@ -15286,7 +15551,7 @@
               "vscode"
             ],
             "package_metadata": "registry/packages/yao-meta-skill.json",
-            "package_sha256": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723"
+            "package_sha256": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa"
           }
         ]
       },
@@ -15309,8 +15574,8 @@
         "target_count": 4,
         "adapter_count": 4,
         "archive_present": true,
-        "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2",
-        "archive_entry_count": 547,
+        "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7",
+        "archive_entry_count": 551,
         "failure_count": 0,
         "warning_count": 0
       },
@@ -15975,7 +16240,7 @@
       "installed_skill_dir": "[temporary-install-root]/yao-meta-skill",
       "summary": {
         "archive_present": true,
-        "archive_entry_count": 547,
+        "archive_entry_count": 551,
         "archive_extracted": true,
         "entrypoint_loaded": true,
         "manifest_loaded": true,
@@ -16317,12 +16582,12 @@
           {
             "field": "archive_sha256",
             "from": "",
-            "to": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2"
+            "to": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7"
           },
           {
             "field": "package_sha256",
             "from": "0000000000000000000000000000000000000000000000000000000000000000",
-            "to": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723"
+            "to": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa"
           }
         ]
       },
diff --git a/reports/review-viewer.json b/reports/review-viewer.json
index fa87d2b2..d87109ec 100644
--- a/reports/review-viewer.json
+++ b/reports/review-viewer.json
@@ -437,7 +437,7 @@
           "path": "scripts",
           "label": "Deterministic helpers or local tooling",
           "kind": "folder",
-          "file_count": 82
+          "file_count": 83
         },
         {
           "path": "evals",
@@ -449,10 +449,10 @@
           "path": "reports",
           "label": "Generated evidence and overview artifacts",
           "kind": "folder",
-          "file_count": 193
+          "file_count": 195
         }
       ],
-      "file_count": 339,
+      "file_count": 342,
       "folder_count": 4,
       "distribution": [
         {
@@ -477,7 +477,7 @@
         },
         {
           "label": "scripts",
-          "value": 82
+          "value": 83
         },
         {
           "label": "evals",
@@ -485,7 +485,7 @@
         },
         {
           "label": "reports",
-          "value": 193
+          "value": 195
         }
       ]
     },
@@ -606,7 +606,7 @@
         "path": "scripts",
         "label": "Deterministic helpers or local tooling",
         "kind": "folder",
-        "file_count": 82
+        "file_count": 83
       },
       {
         "path": "evals",
@@ -618,7 +618,7 @@
         "path": "reports",
         "label": "Generated evidence and overview artifacts",
         "kind": "folder",
-        "file_count": 193
+        "file_count": 195
       }
     ],
     "strengths": [
@@ -906,9 +906,9 @@
         "world_class_task_count": 4,
         "world_class_ledger_pending_count": 4,
         "working_tree_dirty": true,
-        "changed_file_count": 35
+        "changed_file_count": 44
       },
-      "commit": "4737358f3c7acb6650d5463793e5f0e8f913aada",
+      "commit": "ae0f72cccb542d653d6884c38e6f5d1b9a4a2b2d",
       "missing_artifacts": [],
       "limitations": [
         "Local command-runner evidence is reproducible but does not replace provider-backed model holdout evidence.",
@@ -983,8 +983,8 @@
       "failures": []
     },
     "trust_security": {
-      "scanned_files": 166,
-      "script_count": 82,
+      "scanned_files": 167,
+      "script_count": 83,
       "internal_module_count": 10,
       "secret_findings": 0,
       "dependency_files": [
@@ -993,18 +993,18 @@
       "network_script_count": 3,
       "network_policy_covered_count": 3,
       "network_policy_missing_count": 0,
-      "file_write_script_count": 59,
+      "file_write_script_count": 60,
       "permission_required_count": 3,
       "permission_approved_count": 3,
       "permission_missing_count": 0,
       "permission_invalid_count": 0,
       "permission_expired_count": 0,
-      "help_smoke_checked_count": 72,
+      "help_smoke_checked_count": 73,
       "help_smoke_failed_count": 0,
       "interactive_script_count": 0,
       "package_hash_scope": "source-contract-without-generated-reports",
-      "package_hash_file_count": 166,
-      "package_sha256": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723"
+      "package_hash_file_count": 167,
+      "package_sha256": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa"
     },
     "skill_atlas": {
       "skill_count": 12,
@@ -1042,8 +1042,8 @@
         "trust_level": "local",
         "license": "MIT",
         "checksums": {
-          "package_sha256": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723",
-          "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2"
+          "package_sha256": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa",
+          "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7"
         },
         "compatibility": {
           "openai": "pass",
@@ -1074,7 +1074,7 @@
         },
         "distribution": {
           "archive_verified": true,
-          "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2",
+          "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7",
           "package_verification": "reports/package_verification.json",
           "install_simulated": true,
           "install_simulation": "reports/install_simulation.json"
@@ -1090,8 +1090,8 @@
         "target_count": 4,
         "adapter_count": 4,
         "archive_present": true,
-        "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2",
-        "archive_entry_count": 547,
+        "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7",
+        "archive_entry_count": 551,
         "failure_count": 0,
         "warning_count": 0
       },
@@ -1102,7 +1102,7 @@
       "ok": true,
       "summary": {
         "archive_present": true,
-        "archive_entry_count": 547,
+        "archive_entry_count": 551,
         "archive_extracted": true,
         "entrypoint_loaded": true,
         "manifest_loaded": true,
@@ -1169,12 +1169,12 @@
           {
             "field": "archive_sha256",
             "from": "",
-            "to": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2"
+            "to": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7"
           },
           {
             "field": "package_sha256",
             "from": "0000000000000000000000000000000000000000000000000000000000000000",
-            "to": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723"
+            "to": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa"
           }
         ]
       },
diff --git a/reports/security_trust_report.json b/reports/security_trust_report.json
index cbe99cdc..b4352db5 100644
--- a/reports/security_trust_report.json
+++ b/reports/security_trust_report.json
@@ -2,8 +2,8 @@
   "ok": true,
   "skill_dir": ".",
   "summary": {
-    "scanned_files": 166,
-    "script_count": 82,
+    "scanned_files": 167,
+    "script_count": 83,
     "internal_module_count": 10,
     "secret_findings": 0,
     "dependency_files": [
@@ -12,18 +12,18 @@
     "network_script_count": 3,
     "network_policy_covered_count": 3,
     "network_policy_missing_count": 0,
-    "file_write_script_count": 59,
+    "file_write_script_count": 60,
     "permission_required_count": 3,
     "permission_approved_count": 3,
     "permission_missing_count": 0,
     "permission_invalid_count": 0,
     "permission_expired_count": 0,
-    "help_smoke_checked_count": 72,
+    "help_smoke_checked_count": 73,
     "help_smoke_failed_count": 0,
     "interactive_script_count": 0,
     "package_hash_scope": "source-contract-without-generated-reports",
-    "package_hash_file_count": 166,
-    "package_sha256": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723"
+    "package_hash_file_count": 167,
+    "package_sha256": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa"
   },
   "failures": [],
   "warnings": [],
@@ -420,6 +420,20 @@
       "network_urls": [],
       "network_hosts": []
     },
+    {
+      "path": "scripts/render_architecture_maintainability.py",
+      "interface": "cli",
+      "interface_declared": false,
+      "interface_reason": "Default CLI classification; add SCRIPT_INTERFACE for internal modules.",
+      "has_argparse": true,
+      "has_main_guard": true,
+      "uses_input": false,
+      "uses_network": false,
+      "uses_file_write": true,
+      "uses_subprocess": false,
+      "network_urls": [],
+      "network_hosts": []
+    },
     {
       "path": "scripts/render_artifact_design_profile.py",
       "interface": "cli",
@@ -1225,9 +1239,9 @@
   "help_smoke": {
     "enabled": true,
     "timeout_seconds": 5.0,
-    "candidate_count": 72,
-    "checked_count": 72,
-    "passed_count": 72,
+    "candidate_count": 73,
+    "checked_count": 73,
+    "passed_count": 73,
     "failed_count": 0,
     "skipped_count": 10,
     "failed_scripts": [],
@@ -1502,6 +1516,16 @@
         "stdout_excerpt": "usage: render_adoption_drift_report.py [-h] [--events-jsonl EVENTS_JSONL]\n                                       [--output-json OUTPUT_JSON]\n                                       [--output-md OUTPUT_MD]\n                                    ",
         "stderr_excerpt": ""
       },
+      {
+        "path": "scripts/render_architecture_maintainability.py",
+        "command": "python3 scripts/render_architecture_maintainability.py --help",
+        "returncode": 0,
+        "timed_out": false,
+        "passed": true,
+        "has_help_text": true,
+        "stdout_excerpt": "usage: render_architecture_maintainability.py [-h] [--output-json OUTPUT_JSON]\n                                              [--output-md OUTPUT_MD]\n                                              [--warn-lines WARN_LINES]\n                   ",
+        "stderr_excerpt": ""
+      },
       {
         "path": "scripts/render_artifact_design_profile.py",
         "command": "python3 scripts/render_artifact_design_profile.py --help",
@@ -1949,7 +1973,7 @@
         "timed_out": false,
         "passed": true,
         "has_help_text": true,
-        "stdout_excerpt": "usage: yao.py [-h] [--record-cli-telemetry] [--no-cli-telemetry]\n              [--telemetry-events-jsonl TELEMETRY_EVENTS_JSONL]\n              {init,quickstart,validate,optimize-description,promote-check,python-compat,review,release-snapsho",
+        "stdout_excerpt": "usage: yao.py [-h] [--record-cli-telemetry] [--no-cli-telemetry]\n              [--telemetry-events-jsonl TELEMETRY_EVENTS_JSONL]\n              {init,quickstart,validate,optimize-description,promote-check,python-compat,architecture-audit,rev",
         "stderr_excerpt": ""
       }
     ],
@@ -2067,6 +2091,7 @@
           "scripts/python_compat_check.py",
           "scripts/registry_audit.py",
           "scripts/render_adoption_drift_report.py",
+          "scripts/render_architecture_maintainability.py",
           "scripts/render_artifact_design_profile.py",
           "scripts/render_baseline_compare.py",
           "scripts/render_benchmark_reproducibility.py",
diff --git a/reports/security_trust_report.md b/reports/security_trust_report.md
index a2c31529..09389fdf 100644
--- a/reports/security_trust_report.md
+++ b/reports/security_trust_report.md
@@ -1,22 +1,22 @@
 # Security Trust Report
 
 - OK: `True`
-- Scanned files: `166`
-- Scripts: `82`
+- Scanned files: `167`
+- Scripts: `83`
 - Internal script modules: `10`
 - Secret findings: `0`
 - Network-capable scripts: `3`
 - Network policy covered scripts: `3`
 - Network policy missing scripts: `0`
-- File-write scripts: `59`
+- File-write scripts: `60`
 - Permission approvals: `3 / 3`
 - Permission approval gaps: `0`
-- CLI help smoke checked: `72`
+- CLI help smoke checked: `73`
 - CLI help smoke failures: `0`
 - Interactive scripts: `0`
 - Package hash scope: `source-contract-without-generated-reports`
-- Package hash files: `166`
-- Package SHA256: `e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723`
+- Package hash files: `167`
+- Package SHA256: `1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa`
 
 ## Failures
 
@@ -54,8 +54,8 @@
 
 - Enabled: `True`
 - Timeout seconds: `5.0`
-- Checked scripts: `72`
-- Passed scripts: `72`
+- Checked scripts: `73`
+- Passed scripts: `73`
 - Failed scripts: `none`
 
 ## Script Surface
@@ -89,6 +89,7 @@
 | scripts/python_compat_check.py | cli | True | True | True | False | False | True | False | Checks repository Python source for syntax that can pass locally but fail on the supported CI interpreter. |
 | scripts/registry_audit.py | cli | False | True | True | False | False | True | False | Default CLI classification; add SCRIPT_INTERFACE for internal modules. |
 | scripts/render_adoption_drift_report.py | cli | False | True | True | False | False | True | False | Default CLI classification; add SCRIPT_INTERFACE for internal modules. |
+| scripts/render_architecture_maintainability.py | cli | False | True | True | False | False | True | False | Default CLI classification; add SCRIPT_INTERFACE for internal modules. |
 | scripts/render_artifact_design_profile.py | cli | False | True | True | False | False | True | False | Default CLI classification; add SCRIPT_INTERFACE for internal modules. |
 | scripts/render_baseline_compare.py | cli | False | True | True | False | False | True | False | Default CLI classification; add SCRIPT_INTERFACE for internal modules. |
 | scripts/render_benchmark_reproducibility.py | cli | True | True | True | False | False | True | True | Renders a release-facing benchmark reproducibility manifest and Markdown report. |
diff --git a/reports/skill-overview.html b/reports/skill-overview.html
index 1f632173..a044258c 100644
--- a/reports/skill-overview.html
+++ b/reports/skill-overview.html
@@ -771,7 +771,7 @@
           <p><span data-lang="zh-CN">让 reviewer 快速确认关键文件、目录和资产分布。</span><span data-lang="en">Lets reviewers confirm key files, directories, and asset distribution quickly.</span></p>
         </div>
         <div class="two-col">
-          <figure class="chart-figure" data-chart="asset_donut"><svg viewBox="0 0 430 270" role="img" aria-label="资产分布"><text x="20" y="30" class="chart-title">资产分布</text><circle cx="130" cy="130" r="70" fill="none" stroke="#1B365D" stroke-width="24" stroke-dasharray="0.8 99.2" stroke-dashoffset="0.0" pathLength="100" transform="rotate(-90 130 130)"/><circle cx="130" cy="130" r="70" fill="none" stroke="#2D5A8A" stroke-width="24" stroke-dasharray="0.8 99.2" stroke-dashoffset="-0.8" pathLength="100" transform="rotate(-90 130 130)"/><circle cx="130" cy="130" r="70" fill="none" stroke="#D0DCE9" stroke-width="24" stroke-dasharray="0.8 99.2" stroke-dashoffset="-1.7" pathLength="100" transform="rotate(-90 130 130)"/><circle cx="130" cy="130" r="70" fill="none" stroke="#E4ECF5" stroke-width="24" stroke-dasharray="0.8 99.2" stroke-dashoffset="-2.5" pathLength="100" transform="rotate(-90 130 130)"/><circle cx="130" cy="130" r="70" fill="none" stroke="#e8e6dc" stroke-width="24" stroke-dasharray="27.1 72.9" stroke-dashoffset="-3.4" pathLength="100" transform="rotate(-90 130 130)"/><circle cx="130" cy="130" r="70" fill="none" stroke="#504e49" stroke-width="24" stroke-dasharray="69.5 30.5" stroke-dashoffset="-30.5" pathLength="100" transform="rotate(-90 130 130)"/><text x="130" y="136" text-anchor="middle">339项</text><text x="235" y="78">SKILL.md</text><text x="235" y="100">README.md</text><text x="235" y="122">agents/interface.yaml</text><text x="235" y="144">manifest.json</text><text x="235" y="166">references</text><text x="235" y="188">scripts</text></svg><figcaption>资产分布图展示当前包体的文件和目录重心。</figcaption></figure>
+          <figure class="chart-figure" data-chart="asset_donut"><svg viewBox="0 0 430 270" role="img" aria-label="资产分布"><text x="20" y="30" class="chart-title">资产分布</text><circle cx="130" cy="130" r="70" fill="none" stroke="#1B365D" stroke-width="24" stroke-dasharray="0.8 99.2" stroke-dashoffset="0.0" pathLength="100" transform="rotate(-90 130 130)"/><circle cx="130" cy="130" r="70" fill="none" stroke="#2D5A8A" stroke-width="24" stroke-dasharray="0.8 99.2" stroke-dashoffset="-0.8" pathLength="100" transform="rotate(-90 130 130)"/><circle cx="130" cy="130" r="70" fill="none" stroke="#D0DCE9" stroke-width="24" stroke-dasharray="0.8 99.2" stroke-dashoffset="-1.7" pathLength="100" transform="rotate(-90 130 130)"/><circle cx="130" cy="130" r="70" fill="none" stroke="#E4ECF5" stroke-width="24" stroke-dasharray="0.8 99.2" stroke-dashoffset="-2.5" pathLength="100" transform="rotate(-90 130 130)"/><circle cx="130" cy="130" r="70" fill="none" stroke="#e8e6dc" stroke-width="24" stroke-dasharray="26.9 73.1" stroke-dashoffset="-3.4" pathLength="100" transform="rotate(-90 130 130)"/><circle cx="130" cy="130" r="70" fill="none" stroke="#504e49" stroke-width="24" stroke-dasharray="69.7 30.3" stroke-dashoffset="-30.3" pathLength="100" transform="rotate(-90 130 130)"/><text x="130" y="136" text-anchor="middle">342项</text><text x="235" y="78">SKILL.md</text><text x="235" y="100">README.md</text><text x="235" y="122">agents/interface.yaml</text><text x="235" y="144">manifest.json</text><text x="235" y="166">references</text><text x="235" y="188">scripts</text></svg><figcaption>资产分布图展示当前包体的文件和目录重心。</figcaption></figure>
           <table>
             <thead><tr><th><span data-lang="zh-CN">路径</span><span data-lang="en">Path</span></th><th><span data-lang="zh-CN">作用</span><span data-lang="en">Role</span></th><th><span data-lang="zh-CN">类型</span><span data-lang="en">Type</span></th></tr></thead>
             <tbody><tr><td>SKILL.md</td><td><span data-lang="zh-CN">Skill 入口文件</span><span data-lang="en">Skill entrypoint</span></td><td><span data-lang="zh-CN">文件</span><span data-lang="en">file</span></td></tr><tr><td>README.md</td><td><span data-lang="zh-CN">人类可读使用说明</span><span data-lang="en">Human-readable usage guide</span></td><td><span data-lang="zh-CN">文件</span><span data-lang="en">file</span></td></tr><tr><td>agents/interface.yaml</td><td><span data-lang="zh-CN">跨平台接口元数据</span><span data-lang="en">Neutral interface metadata</span></td><td><span data-lang="zh-CN">文件</span><span data-lang="en">file</span></td></tr><tr><td>manifest.json</td><td><span data-lang="zh-CN">生命周期与打包元数据</span><span data-lang="en">Lifecycle and portability metadata</span></td><td><span data-lang="zh-CN">文件</span><span data-lang="en">file</span></td></tr><tr><td>references</td><td><span data-lang="zh-CN">扩展指导与复用资料</span><span data-lang="en">Extended guidance and reusable notes</span></td><td><span data-lang="zh-CN">目录</span><span data-lang="en">folder</span></td></tr><tr><td>scripts</td><td><span data-lang="zh-CN">确定性脚本或本地工具</span><span data-lang="en">Deterministic helpers or local tooling</span></td><td><span data-lang="zh-CN">目录</span><span data-lang="en">folder</span></td></tr><tr><td>evals</td><td><span data-lang="zh-CN">触发与质量检查</span><span data-lang="en">Trigger and quality checks</span></td><td><span data-lang="zh-CN">目录</span><span data-lang="en">folder</span></td></tr><tr><td>reports</td><td><span data-lang="zh-CN">生成的证据与总结报告</span><span data-lang="en">Generated evidence and overview artifacts</span></td><td><span data-lang="zh-CN">目录</span><span data-lang="en">folder</span></td></tr></tbody>
diff --git a/reports/skill-overview.json b/reports/skill-overview.json
index 286ad479..446abf77 100644
--- a/reports/skill-overview.json
+++ b/reports/skill-overview.json
@@ -436,7 +436,7 @@
         "path": "scripts",
         "label": "Deterministic helpers or local tooling",
         "kind": "folder",
-        "file_count": 82
+        "file_count": 83
       },
       {
         "path": "evals",
@@ -448,10 +448,10 @@
         "path": "reports",
         "label": "Generated evidence and overview artifacts",
         "kind": "folder",
-        "file_count": 193
+        "file_count": 195
       }
     ],
-    "file_count": 339,
+    "file_count": 342,
     "folder_count": 4,
     "distribution": [
       {
@@ -476,7 +476,7 @@
       },
       {
         "label": "scripts",
-        "value": 82
+        "value": 83
       },
       {
         "label": "evals",
@@ -484,7 +484,7 @@
       },
       {
         "label": "reports",
-        "value": 193
+        "value": 195
       }
     ]
   },
@@ -605,7 +605,7 @@
       "path": "scripts",
       "label": "Deterministic helpers or local tooling",
       "kind": "folder",
-      "file_count": 82
+      "file_count": 83
     },
     {
       "path": "evals",
@@ -617,7 +617,7 @@
       "path": "reports",
       "label": "Generated evidence and overview artifacts",
       "kind": "folder",
-      "file_count": 193
+      "file_count": 195
     }
   ],
   "strengths": [
@@ -905,9 +905,9 @@
       "world_class_task_count": 4,
       "world_class_ledger_pending_count": 4,
       "working_tree_dirty": true,
-      "changed_file_count": 35
+      "changed_file_count": 44
     },
-    "commit": "4737358f3c7acb6650d5463793e5f0e8f913aada",
+    "commit": "ae0f72cccb542d653d6884c38e6f5d1b9a4a2b2d",
     "missing_artifacts": [],
     "limitations": [
       "Local command-runner evidence is reproducible but does not replace provider-backed model holdout evidence.",
@@ -982,8 +982,8 @@
     "failures": []
   },
   "trust_security": {
-    "scanned_files": 166,
-    "script_count": 82,
+    "scanned_files": 167,
+    "script_count": 83,
     "internal_module_count": 10,
     "secret_findings": 0,
     "dependency_files": [
@@ -992,18 +992,18 @@
     "network_script_count": 3,
     "network_policy_covered_count": 3,
     "network_policy_missing_count": 0,
-    "file_write_script_count": 59,
+    "file_write_script_count": 60,
     "permission_required_count": 3,
     "permission_approved_count": 3,
     "permission_missing_count": 0,
     "permission_invalid_count": 0,
     "permission_expired_count": 0,
-    "help_smoke_checked_count": 72,
+    "help_smoke_checked_count": 73,
     "help_smoke_failed_count": 0,
     "interactive_script_count": 0,
     "package_hash_scope": "source-contract-without-generated-reports",
-    "package_hash_file_count": 166,
-    "package_sha256": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723"
+    "package_hash_file_count": 167,
+    "package_sha256": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa"
   },
   "skill_atlas": {
     "skill_count": 12,
@@ -1041,8 +1041,8 @@
       "trust_level": "local",
       "license": "MIT",
       "checksums": {
-        "package_sha256": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723",
-        "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2"
+        "package_sha256": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa",
+        "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7"
       },
       "compatibility": {
         "openai": "pass",
@@ -1073,7 +1073,7 @@
       },
       "distribution": {
         "archive_verified": true,
-        "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2",
+        "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7",
         "package_verification": "reports/package_verification.json",
         "install_simulated": true,
         "install_simulation": "reports/install_simulation.json"
@@ -1089,8 +1089,8 @@
       "target_count": 4,
       "adapter_count": 4,
       "archive_present": true,
-      "archive_sha256": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2",
-      "archive_entry_count": 547,
+      "archive_sha256": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7",
+      "archive_entry_count": 551,
       "failure_count": 0,
       "warning_count": 0
     },
@@ -1101,7 +1101,7 @@
     "ok": true,
     "summary": {
       "archive_present": true,
-      "archive_entry_count": 547,
+      "archive_entry_count": 551,
       "archive_extracted": true,
       "entrypoint_loaded": true,
       "manifest_loaded": true,
@@ -1168,12 +1168,12 @@
         {
           "field": "archive_sha256",
           "from": "",
-          "to": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2"
+          "to": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7"
         },
         {
           "field": "package_sha256",
           "from": "0000000000000000000000000000000000000000000000000000000000000000",
-          "to": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723"
+          "to": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa"
         }
       ]
     },
diff --git a/reports/skill_atlas.json b/reports/skill_atlas.json
index 33bcd0fe..a450c554 100644
--- a/reports/skill_atlas.json
+++ b/reports/skill_atlas.json
@@ -44,7 +44,7 @@
   },
   "catalog": {
     "workspace_root": ".",
-    "generated_at": "2026-06-13",
+    "generated_at": "2026-06-14",
     "skills": [
       {
         "name": "yao-meta-skill",
@@ -91,6 +91,7 @@
           "scripts/python_compat_check.py",
           "scripts/registry_audit.py",
           "scripts/render_adoption_drift_report.py",
+          "scripts/render_architecture_maintainability.py",
           "scripts/render_artifact_design_profile.py",
           "scripts/render_baseline_compare.py",
           "scripts/render_benchmark_reproducibility.py",
@@ -209,8 +210,8 @@
           "report": "reports/adoption_drift_report.json",
           "risk_band": "low",
           "event_count": 1,
-          "adoption_sample_count": 1,
-          "adoption_rate": 100.0,
+          "adoption_sample_count": 0,
+          "adoption_rate": 0,
           "candidate_count": 0
         }
       },
@@ -873,7 +874,7 @@
       "name": "incident-command-governor",
       "path": "examples/governed-incident-command/generated-skill",
       "reason": "review overdue by cadence monthly",
-      "age_days": 74,
+      "age_days": 75,
       "allowed_days": 31,
       "actionable": false,
       "scope": "example"
diff --git a/reports/skill_os2_audit.json b/reports/skill_os2_audit.json
index da3dccae..2927c4a5 100644
--- a/reports/skill_os2_audit.json
+++ b/reports/skill_os2_audit.json
@@ -197,7 +197,7 @@
       "key": "trust-security",
       "label": "Trust Security",
       "status": "pass",
-      "current": "secrets 0; scripts 82; help failures 0",
+      "current": "secrets 0; scripts 83; help failures 0",
       "target": "Secrets, scripts, dependencies, permissions, and package hash are reviewable",
       "evidence": [
         {
@@ -281,7 +281,7 @@
       "key": "registry-distribution",
       "label": "Registry Distribution",
       "status": "pass",
-      "current": "zip entries 547; install failures 0; permission failures 0",
+      "current": "zip entries 551; install failures 0; permission failures 0",
       "target": "Package metadata, archive checksum, package verification, and install simulation pass",
       "evidence": [
         {
@@ -303,7 +303,7 @@
       "key": "review-studio",
       "label": "Review Studio",
       "status": "pass",
-      "current": "decision review; warnings 3; score 90",
+      "current": "decision review; warnings 4; score 89",
       "target": "One page shows gates, evidence paths, blockers, warnings, actions, waivers, and annotations",
       "evidence": [
         {
diff --git a/reports/skill_os2_audit.md b/reports/skill_os2_audit.md
index b07ddbae..7ba2fbf5 100644
--- a/reports/skill_os2_audit.md
+++ b/reports/skill_os2_audit.md
@@ -23,12 +23,12 @@ Generated at: `2026-06-14`
 | Human Adjudication | human-required | 0/5 decisions; pending 5 | Real reviewer decisions recorded before claiming output review completion | Record real A/B choices in the decision template, then regenerate adjudication. |
 | Benchmark Reproducibility | pass | artifacts 20; missing 0; failures 3 | Public methodology, reproducible commands, required artifacts, and failure disclosure are machine-checkable | Keep the manifest current with every benchmark, package, and release evidence change. |
 | Runtime Conformance | pass | 5/5 targets pass | Target package structure, metadata, relative paths, and degradation notes pass | Keep target conformance fixtures updated as platform contracts change. |
-| Trust Security | pass | secrets 0; scripts 82; help failures 0 | Secrets, scripts, dependencies, permissions, and package hash are reviewable | Keep high-permission approvals scoped, expiring, and target-mapped. |
+| Trust Security | pass | secrets 0; scripts 83; help failures 0 | Secrets, scripts, dependencies, permissions, and package hash are reviewable | Keep high-permission approvals scoped, expiring, and target-mapped. |
 | Permission Metadata | pass | 4/4 target probes pass; metadata fallback 4 | Packaged adapters expose explicit permission metadata and residual risks | Preserve residual-risk notes until real native enforcement exists. |
 | Native Permission Enforcement | external-required | native-enforced targets 0 | At least one target/client enforces approved permissions at runtime | Integrate a real client or installer runtime guard before claiming native permission enforcement. |
 | Skill Atlas | pass | 12 skills; actionable collisions 0 | Workspace catalog, route overlap, stale/owner gaps, drift, and no-route opportunities | Feed real drift data into Atlas once client telemetry is installed. |
-| Registry Distribution | pass | zip entries 547; install failures 0; permission failures 0 | Package metadata, archive checksum, package verification, and install simulation pass | Regenerate registry after package verification so checksums stay aligned. |
-| Review Studio | pass | decision review; warnings 3; score 90 | One page shows gates, evidence paths, blockers, warnings, actions, waivers, and annotations | Resolve human/external warning gates before claiming full release readiness. |
+| Registry Distribution | pass | zip entries 551; install failures 0; permission failures 0 | Package metadata, archive checksum, package verification, and install simulation pass | Regenerate registry after package verification so checksums stay aligned. |
+| Review Studio | pass | decision review; warnings 4; score 89 | One page shows gates, evidence paths, blockers, warnings, actions, waivers, and annotations | Resolve human/external warning gates before claiming full release readiness. |
 | Telemetry Drift | pass | events 1; risk low; recipes 5 | Local-first metadata-only event contract, aggregate drift report, hook recipes, and import path | Keep raw JSONL out of distributed packages and use aggregate reports for Atlas. |
 | Native Client Telemetry | external-required | external source events 0; adoption samples 0 | A real Browser/Chrome/provider client sends production metadata events | Install a real client against the native host and import production metadata-only events. |
 
diff --git a/reports/skill_os2_coverage.json b/reports/skill_os2_coverage.json
index d7ca42a7..a5e747bd 100644
--- a/reports/skill_os2_coverage.json
+++ b/reports/skill_os2_coverage.json
@@ -122,7 +122,7 @@
       "label": "Trust Security",
       "status": "pass",
       "objective": "Scripts, dependencies, permissions, secrets, and package hash are reviewable for team distribution.",
-      "current": "82 scripts; secrets 0; help failures 0",
+      "current": "83 scripts; secrets 0; help failures 0",
       "command": "python3 scripts/yao.py trust .",
       "test": "python3 tests/verify_trust_check.py",
       "evidence": [
@@ -196,7 +196,7 @@
       "label": "Registry Distribution",
       "status": "pass",
       "objective": "Skill packages are installable, versioned, checksumed, and upgrade-reviewable.",
-      "current": "archive entries 547; install failures 0",
+      "current": "archive entries 551; install failures 0",
       "command": "python3 scripts/yao.py package . --platform openai --platform claude --platform generic --platform vscode --output-dir dist --zip && python3 scripts/yao.py registry-audit .",
       "test": "python3 tests/verify_registry_audit.py",
       "evidence": [
@@ -237,7 +237,7 @@
       "label": "Review Studio",
       "status": "pass",
       "objective": "One HTML page supports first-pass production review across trigger, output, runtime, trust, release, and evidence actions.",
-      "current": "15 gates; decision review; warnings 3",
+      "current": "16 gates; decision review; warnings 4",
       "command": "python3 scripts/yao.py review-studio .",
       "test": "python3 tests/verify_review_studio.py",
       "evidence": [
@@ -555,7 +555,7 @@
       "label": "Review Studio 2.0",
       "status": "pass",
       "objective": "Recommended Skill OS 2.0 implementation PR from the upgrade plan.",
-      "current": "15 review gates",
+      "current": "16 review gates",
       "command": "make ci-test",
       "test": "tests/verify_review_studio.py",
       "evidence": [
diff --git a/reports/skill_os2_coverage.md b/reports/skill_os2_coverage.md
index a322992d..a0e9b179 100644
--- a/reports/skill_os2_coverage.md
+++ b/reports/skill_os2_coverage.md
@@ -21,10 +21,10 @@ This report maps the Skill OS 2.0 upgrade blueprint to concrete local artifacts,
 | Skill IR | `pass` | schema 2.0.0; targets 5 | `python3 scripts/yao.py skill-ir .` | `python3 tests/verify_skill_ir.py` |
 | Output Eval Lab | `pass` | 5 cases; delta 100.0; execution 10 | `python3 scripts/yao.py output-exec . && python3 scripts/yao.py output-review .` | `python3 tests/verify_output_eval_lab.py` |
 | Runtime Conformance | `pass` | 5/5 targets pass | `python3 scripts/yao.py conformance .` | `python3 tests/verify_conformance_suite.py` |
-| Trust Security | `pass` | 82 scripts; secrets 0; help failures 0 | `python3 scripts/yao.py trust .` | `python3 tests/verify_trust_check.py` |
+| Trust Security | `pass` | 83 scripts; secrets 0; help failures 0 | `python3 scripts/yao.py trust .` | `python3 tests/verify_trust_check.py` |
 | Skill Atlas | `pass` | 12 scanned skills; actionable collisions 0 | `python3 scripts/yao.py skill-atlas --workspace-root .` | `python3 tests/verify_skill_atlas.py` |
-| Registry Distribution | `pass` | archive entries 547; install failures 0 | `python3 scripts/yao.py package . --platform openai --platform claude --platform generic --platform vscode --output-dir dist --zip && python3 scripts/yao.py registry-audit .` | `python3 tests/verify_registry_audit.py` |
-| Review Studio | `pass` | 15 gates; decision review; warnings 3 | `python3 scripts/yao.py review-studio .` | `python3 tests/verify_review_studio.py` |
+| Registry Distribution | `pass` | archive entries 551; install failures 0 | `python3 scripts/yao.py package . --platform openai --platform claude --platform generic --platform vscode --output-dir dist --zip && python3 scripts/yao.py registry-audit .` | `python3 tests/verify_registry_audit.py` |
+| Review Studio | `pass` | 16 gates; decision review; warnings 4 | `python3 scripts/yao.py review-studio .` | `python3 tests/verify_review_studio.py` |
 | Telemetry Drift | `pass` | events 1; recipes 5; risk low | `python3 scripts/yao.py telemetry-hooks . && python3 scripts/yao.py adoption-drift .` | `python3 tests/verify_telemetry_hooks.py` |
 
 ## Recommended PR Coverage
@@ -41,7 +41,7 @@ This report maps the Skill OS 2.0 upgrade blueprint to concrete local artifacts,
 | Trust Check | `pass` | secret findings 0 | `make ci-test` | `tests/verify_trust_check.py` |
 | Skill Atlas Generator | `pass` | 12 scanned skills | `make ci-test` | `tests/verify_skill_atlas.py` |
 | Registry Package Format | `pass` | registry ok True | `make ci-test` | `tests/verify_registry_audit.py` |
-| Review Studio 2.0 | `pass` | 15 review gates | `make ci-test` | `tests/verify_review_studio.py` |
+| Review Studio 2.0 | `pass` | 16 review gates | `make ci-test` | `tests/verify_review_studio.py` |
 | Migration V2 Docs | `pass` | migration guide present | `make ci-test` | `docs review` |
 
 ## Next Highest-Leverage Moves
diff --git a/reports/upgrade_check.json b/reports/upgrade_check.json
index 53530144..62e314ed 100644
--- a/reports/upgrade_check.json
+++ b/reports/upgrade_check.json
@@ -70,12 +70,12 @@
       {
         "field": "archive_sha256",
         "from": "",
-        "to": "d879a6c6c16f91854dae70c114fa6cea05aeb423d8d11918e2a3f87930ed1bf2"
+        "to": "b258a36c15b68045a4b420c49585ac446de6b013cb43fae25f3ba562ba06fab7"
       },
       {
         "field": "package_sha256",
         "from": "0000000000000000000000000000000000000000000000000000000000000000",
-        "to": "e377e8c99c14f87933224d1abebbe9d5d971fd852e1f3fe9b2a4a80861e90723"
+        "to": "1ce8a87e2393ee03818d16053afb68b2332cacbc2e3b400058b5bbf8c31266fa"
       }
     ]
   },
diff --git a/reports/world_class_claim_guard.json b/reports/world_class_claim_guard.json
index b8314b82..68d837f6 100644
--- a/reports/world_class_claim_guard.json
+++ b/reports/world_class_claim_guard.json
@@ -6,7 +6,7 @@
   "summary": {
     "ledger_ready_to_claim_world_class": false,
     "ledger_pending_count": 4,
-    "claim_surface_count": 67,
+    "claim_surface_count": 68,
     "violation_count": 0,
     "overclaim_guard_active": true,
     "decision": "claim-guard-pass-evidence-pending"
@@ -71,6 +71,10 @@
       "path": "reports/adoption_drift_report.md",
       "violation_count": 0
     },
+    {
+      "path": "reports/architecture_maintainability.md",
+      "violation_count": 0
+    },
     {
       "path": "reports/artifact-design-profile.md",
       "violation_count": 0
diff --git a/reports/world_class_claim_guard.md b/reports/world_class_claim_guard.md
index d86a1795..35462189 100644
--- a/reports/world_class_claim_guard.md
+++ b/reports/world_class_claim_guard.md
@@ -7,7 +7,7 @@ Generated at: `2026-06-14`
 - decision: `claim-guard-pass-evidence-pending`
 - ledger ready to claim world-class: `false`
 - ledger pending evidence: `4`
-- claim surfaces scanned: `67`
+- claim surfaces scanned: `68`
 - violations: `0`
 - overclaim guard active: `true`
 
diff --git a/scripts/ci_test.py b/scripts/ci_test.py
index f5024024..241c9ac0 100644
--- a/scripts/ci_test.py
+++ b/scripts/ci_test.py
@@ -30,6 +30,7 @@ DEFAULT_TARGETS = [
     "description-optimization-check",
     "promotion-check",
     "python-compat-check",
+    "architecture-maintainability-check",
     "yao-cli-check",
     "skill-overview-check",
     "skill-report-metrics-check",
diff --git a/scripts/render_architecture_maintainability.py b/scripts/render_architecture_maintainability.py
new file mode 100644
index 00000000..c39804d3
--- /dev/null
+++ b/scripts/render_architecture_maintainability.py
@@ -0,0 +1,231 @@
+#!/usr/bin/env python3
+"""Render a maintainability audit for the skill code surface."""
+
+import argparse
+import json
+from datetime import date
+from pathlib import Path
+from typing import Any
+
+
+ROOT = Path(__file__).resolve().parent.parent
+
+
+EXCLUDED_PARTS = {
+    ".git",
+    ".mypy_cache",
+    ".pytest_cache",
+    "__pycache__",
+    "dist",
+    ".previews",
+}
+
+
+def iter_python_files(skill_dir: Path) -> list[Path]:
+    roots = [skill_dir / "scripts", skill_dir / "tests"]
+    files: list[Path] = []
+    for root in roots:
+        if not root.exists():
+            continue
+        for path in root.rglob("*.py"):
+            rel_parts = path.relative_to(skill_dir).parts
+            if any(part in EXCLUDED_PARTS for part in rel_parts):
+                continue
+            if len(rel_parts) >= 2 and rel_parts[0] == "tests" and rel_parts[1].startswith("tmp"):
+                continue
+            files.append(path)
+    return sorted(files)
+
+
+def rel(skill_dir: Path, path: Path) -> str:
+    try:
+        return str(path.resolve().relative_to(skill_dir.resolve()))
+    except ValueError:
+        return str(path)
+
+
+def classify_python_file(path: Path, text: str) -> str:
+    if 'SCRIPT_INTERFACE = "internal-module"' in text or "SCRIPT_INTERFACE = 'internal-module'" in text:
+        return "internal-module"
+    if "argparse.ArgumentParser" in text or ".add_argument(" in text or "argparse" in text:
+        return "cli-script"
+    if path.parts[-2:-1] == ("tests",) or "/tests/" in path.as_posix():
+        return "test"
+    return "module"
+
+
+def recommendation_for(path: str) -> str:
+    if path == "scripts/yao.py":
+        return "Split command handlers by domain while keeping scripts/yao.py as the thin CLI orchestrator."
+    if path == "scripts/render_review_studio.py":
+        return "Move data loading and large section renderers into focused review_studio_* modules."
+    if path == "scripts/render_review_viewer.py":
+        return "Split viewer data assembly from HTML section rendering."
+    if path.startswith("tests/"):
+        return "Break broad integration assertions into focused verifier helpers when the next behavior change lands."
+    return "Watch this file before adding new responsibilities; extract a helper module when one concern dominates."
+
+
+def count_command_handlers(skill_dir: Path) -> int:
+    path = skill_dir / "scripts" / "yao.py"
+    if not path.exists():
+        return 0
+    count = 0
+    for line in path.read_text(encoding="utf-8", errors="replace").splitlines():
+        if line.startswith("def command_"):
+            count += 1
+    return count
+
+
+def build_report(skill_dir: Path, warn_lines: int, block_lines: int, generated_at: str) -> dict[str, Any]:
+    files = iter_python_files(skill_dir)
+    records: list[dict[str, Any]] = []
+    internal_count = 0
+    cli_count = 0
+    test_count = 0
+    script_count = 0
+    for path in files:
+        text = path.read_text(encoding="utf-8", errors="replace")
+        line_count = len(text.splitlines())
+        kind = classify_python_file(path, text)
+        rel_path = rel(skill_dir, path)
+        if kind == "internal-module":
+            internal_count += 1
+        if kind == "cli-script":
+            cli_count += 1
+        if rel_path.startswith("tests/"):
+            test_count += 1
+        if rel_path.startswith("scripts/"):
+            script_count += 1
+        severity = "pass"
+        if line_count >= block_lines:
+            severity = "block"
+        elif line_count >= warn_lines:
+            severity = "warn"
+        records.append(
+            {
+                "path": rel_path,
+                "lines": line_count,
+                "kind": kind,
+                "severity": severity,
+                "recommendation": recommendation_for(rel_path),
+            }
+        )
+    records.sort(key=lambda item: (-int(item["lines"]), str(item["path"])))
+    hotspots = [item for item in records if item["severity"] in {"warn", "block"}]
+    blockers = [item for item in records if item["severity"] == "block"]
+    summary = {
+        "python_file_count": len(records),
+        "script_file_count": script_count,
+        "test_file_count": test_count,
+        "internal_module_count": internal_count,
+        "cli_script_count": cli_count,
+        "command_handler_count": count_command_handlers(skill_dir),
+        "warn_line_threshold": warn_lines,
+        "block_line_threshold": block_lines,
+        "largest_file_lines": records[0]["lines"] if records else 0,
+        "hotspot_count": len(hotspots),
+        "blocker_count": len(blockers),
+        "decision": "block-maintainability" if blockers else ("watch-maintainability-hotspots" if hotspots else "pass"),
+    }
+    return {
+        "schema_version": "1.0",
+        "ok": not blockers,
+        "generated_at": generated_at,
+        "skill_dir": ".",
+        "summary": summary,
+        "largest_files": records[:12],
+        "hotspots": hotspots,
+        "actions": [
+            {
+                "path": item["path"],
+                "severity": item["severity"],
+                "action": item["recommendation"],
+            }
+            for item in hotspots[:8]
+        ],
+        "artifacts": {
+            "json": "reports/architecture_maintainability.json",
+            "markdown": "reports/architecture_maintainability.md",
+        },
+    }
+
+
+def render_markdown(report: dict[str, Any]) -> str:
+    summary = report["summary"]
+    lines = [
+        "# Architecture Maintainability",
+        "",
+        f"Generated at: `{report['generated_at']}`",
+        "",
+        "## Summary",
+        "",
+        f"- decision: `{summary['decision']}`",
+        f"- python files: `{summary['python_file_count']}`",
+        f"- scripts: `{summary['script_file_count']}`",
+        f"- tests: `{summary['test_file_count']}`",
+        f"- internal modules: `{summary['internal_module_count']}`",
+        f"- CLI scripts: `{summary['cli_script_count']}`",
+        f"- Yao CLI command handlers: `{summary['command_handler_count']}`",
+        f"- largest file lines: `{summary['largest_file_lines']}`",
+        f"- hotspots: `{summary['hotspot_count']}`",
+        f"- blockers: `{summary['blocker_count']}`",
+        "",
+        "This report keeps maintainability risk visible before the Meta Skill grows more gates, renderers, and CLI commands.",
+        "",
+        "## Hotspots",
+        "",
+    ]
+    hotspots = report.get("hotspots", [])
+    if hotspots:
+        lines.extend(["| File | Lines | Kind | Severity | Recommended action |", "| --- | ---: | --- | --- | --- |"])
+        for item in hotspots:
+            lines.append(
+                f"| `{item['path']}` | `{item['lines']}` | `{item['kind']}` | `{item['severity']}` | {item['recommendation']} |"
+            )
+    else:
+        lines.append("No file-size hotspots found.")
+    lines.extend(["", "## Largest Files", ""])
+    if report.get("largest_files"):
+        lines.extend(["| File | Lines | Kind | Severity |", "| --- | ---: | --- | --- |"])
+        for item in report["largest_files"]:
+            lines.append(f"| `{item['path']}` | `{item['lines']}` | `{item['kind']}` | `{item['severity']}` |")
+    else:
+        lines.append("No Python files found under scripts/ or tests/.")
+    lines.extend(
+        [
+            "",
+            "## Release Rule",
+            "",
+            "- `block` hotspots should be split before governed release.",
+            "- `warn` hotspots can ship only when Review Studio keeps them visible and a reviewer accepts the modularization plan.",
+            "- Do not split a file only for line count; split when a stable responsibility boundary is clear.",
+        ]
+    )
+    return "\n".join(lines) + "\n"
+
+
+def main() -> None:
+    parser = argparse.ArgumentParser(description="Render architecture maintainability evidence for a skill package.")
+    parser.add_argument("skill_dir", nargs="?", default=".")
+    parser.add_argument("--output-json")
+    parser.add_argument("--output-md")
+    parser.add_argument("--warn-lines", type=int, default=900)
+    parser.add_argument("--block-lines", type=int, default=1500)
+    parser.add_argument("--generated-at", default=date.today().isoformat())
+    args = parser.parse_args()
+
+    skill_dir = Path(args.skill_dir).resolve()
+    report = build_report(skill_dir, args.warn_lines, args.block_lines, args.generated_at)
+    output_json = Path(args.output_json) if args.output_json else skill_dir / "reports" / "architecture_maintainability.json"
+    output_md = Path(args.output_md) if args.output_md else skill_dir / "reports" / "architecture_maintainability.md"
+    output_json.parent.mkdir(parents=True, exist_ok=True)
+    output_md.parent.mkdir(parents=True, exist_ok=True)
+    output_json.write_text(json.dumps(report, ensure_ascii=False, indent=2) + "\n", encoding="utf-8")
+    output_md.write_text(render_markdown(report), encoding="utf-8")
+    print(json.dumps(report, ensure_ascii=False, indent=2))
+    raise SystemExit(0 if report["ok"] else 2)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/scripts/render_review_annotations.py b/scripts/render_review_annotations.py
index 58dbe681..19bc6cf5 100644
--- a/scripts/render_review_annotations.py
+++ b/scripts/render_review_annotations.py
@@ -18,11 +18,14 @@ VALID_GATES = {
     "context-budget",
     "runtime-matrix",
     "trust-report",
+    "python-compat",
+    "architecture-maintainability",
     "permission-gates",
     "permission-runtime",
     "skill-atlas",
     "operations-loop",
     "review-waivers",
+    "world-class-evidence",
     "registry-audit",
     "release-notes",
 }
diff --git a/scripts/render_review_studio.py b/scripts/render_review_studio.py
index f906558c..39a24d58 100644
--- a/scripts/render_review_studio.py
+++ b/scripts/render_review_studio.py
@@ -129,6 +129,7 @@ def evidence_paths(skill_dir: Path) -> dict[str, str]:
         "runtime_conformance": "reports/conformance_matrix.md",
         "trust_report": "reports/security_trust_report.md",
         "python_compatibility": "reports/python_compatibility.md",
+        "architecture_maintainability": "reports/architecture_maintainability.md",
         "permission_policy": "security/permission_policy.md",
         "runtime_permissions": "reports/runtime_permission_probes.md",
         "skill_atlas": "reports/skill_atlas.html",
@@ -167,6 +168,7 @@ def load_review_data(skill_dir: Path) -> dict[str, dict[str, Any]]:
         "runtime_permissions": load_json(reports / "runtime_permission_probes.json"),
         "trust": load_json(reports / "security_trust_report.json"),
         "python_compatibility": load_json(reports / "python_compatibility.json"),
+        "architecture_maintainability": load_json(reports / "architecture_maintainability.json"),
         "context_budget": load_json(reports / "context_budget.json"),
         "promotion": load_json(reports / "promotion_decisions.json"),
         "atlas": load_json(reports / "skill_atlas.json"),
@@ -198,6 +200,7 @@ def insight_cards(data: dict[str, dict[str, Any]]) -> list[dict[str, str]]:
     runtime_permissions = data["runtime_permissions"].get("summary", {})
     trust = data["trust"].get("summary", {})
     python_compat = data["python_compatibility"].get("summary", {})
+    architecture = data["architecture_maintainability"].get("summary", {})
     atlas = data["atlas"].get("summary", {})
     adoption = data["adoption_drift"].get("summary", {})
     waivers = data["review_waivers"].get("summary", {})
@@ -268,6 +271,14 @@ def insight_cards(data: dict[str, dict[str, Any]]) -> list[dict[str, str]]:
             "value": str(python_compat.get("issue_count", 0)),
             "detail": f"{python_compat.get('file_count', 0)} files scanned for Python {python_compat.get('target_python', '3.11')}",
         },
+        {
+            "label": "Arch Debt",
+            "value": str(architecture.get("hotspot_count", 0)),
+            "detail": (
+                f"{architecture.get('largest_file_lines', 0)} largest lines; "
+                f"{architecture.get('command_handler_count', 0)} CLI handlers"
+            ),
+        },
         {
             "label": "Atlas",
             "value": str(atlas.get("route_collision_count", 0)),
@@ -451,6 +462,18 @@ ACTION_GUIDANCE: dict[str, dict[str, str]] = {
         ],
         "verification": "python3 scripts/yao.py python-compat .",
     },
+    "architecture-maintainability": {
+        "summary": "处理大文件和 CLI command surface 的维护性热点，优先拆分稳定职责边界。",
+        "why": "Meta Skill 的门禁、报告和 CLI 会持续增长；如果不把架构债纳入审查，后续能力会越来越难验证和迁移。",
+        "source_fix": "reports/architecture_maintainability.md + scripts/yao.py + scripts/render_review_studio.py",
+        "source_paths": [
+            {"path": "reports/architecture_maintainability.md", "label": "architecture maintainability", "kind": "report", "patterns": ["# Architecture"]},
+            {"path": "scripts/yao.py", "label": "Yao CLI orchestrator", "kind": "source", "patterns": ["def command_"]},
+            {"path": "scripts/render_review_studio.py", "label": "Review Studio renderer", "kind": "source", "patterns": ["ACTION_GUIDANCE"]},
+            {"path": "scripts/render_review_viewer.py", "label": "review viewer renderer", "kind": "source", "patterns": ["def "]},
+        ],
+        "verification": "python3 scripts/yao.py architecture-audit .",
+    },
     "permission-gates": {
         "summary": "补齐高权限能力的 reviewer、scope、reason、expires_at 和目标端 enforcement 说明。",
         "why": "权限契约只有在批准人、有效期和目标端处置方式明确时，才能支撑 governed release。",
diff --git a/scripts/review_studio_gates.py b/scripts/review_studio_gates.py
index 23e9c0e2..81c797cf 100644
--- a/scripts/review_studio_gates.py
+++ b/scripts/review_studio_gates.py
@@ -291,6 +291,37 @@ def build_gates(skill_dir: Path, output_html: Path, data: dict[str, dict[str, An
         )
     )
 
+    architecture = data["architecture_maintainability"]
+    architecture_summary = architecture.get("summary", {})
+    if not architecture:
+        if maturity in {"library", "governed"}:
+            architecture_status = "warn"
+            architecture_detail = "architecture maintainability report is missing for a reusable package"
+        else:
+            architecture_status = "pass"
+            architecture_detail = "architecture maintainability report is optional until code surface grows"
+    else:
+        hotspot_count = int(architecture_summary.get("hotspot_count", 0) or 0)
+        blocker_count = int(architecture_summary.get("blocker_count", 0) or 0)
+        architecture_status = "block" if not architecture.get("ok", True) or blocker_count else ("warn" if hotspot_count else "pass")
+        architecture_detail = (
+            f"{architecture_summary.get('python_file_count', 0)} Python files; "
+            f"{hotspot_count} hotspots; "
+            f"{blocker_count} blockers; "
+            f"largest {architecture_summary.get('largest_file_lines', 0)} lines; "
+            f"{architecture_summary.get('command_handler_count', 0)} CLI handlers"
+        )
+    gates.append(
+        gate(
+            "architecture-maintainability",
+            "架构维护",
+            architecture_status,
+            architecture_detail,
+            "reports/architecture_maintainability.json",
+            _report_link(output_html, skill_dir, "reports/architecture_maintainability.md"),
+        )
+    )
+
     permission_governance = trust.get("permission_governance", {}) if isinstance(trust.get("permission_governance", {}), dict) else {}
     if trust and not permission_governance:
         permission_governance = fallback_permission_governance(skill_dir)
@@ -566,6 +597,7 @@ def weighted_score(gates: list[dict[str, str]]) -> int:
         "runtime-matrix": 10,
         "trust-report": 10,
         "python-compat": 10,
+        "architecture-maintainability": 10,
         "permission-gates": 10,
         "permission-runtime": 10,
         "skill-atlas": 10,
diff --git a/scripts/yao.py b/scripts/yao.py
index d42ae2fe..1fc2e567 100644
--- a/scripts/yao.py
+++ b/scripts/yao.py
@@ -455,6 +455,24 @@ def command_python_compat(args: argparse.Namespace) -> int:
     return 0 if result["ok"] else 2
 
 
+def command_architecture_audit(args: argparse.Namespace) -> int:
+    skill_dir = str(Path(args.skill_dir).resolve())
+    cmd = [skill_dir]
+    if args.output_json:
+        cmd.extend(["--output-json", args.output_json])
+    if args.output_md:
+        cmd.extend(["--output-md", args.output_md])
+    if args.warn_lines is not None:
+        cmd.extend(["--warn-lines", str(args.warn_lines)])
+    if args.block_lines is not None:
+        cmd.extend(["--block-lines", str(args.block_lines)])
+    if args.generated_at:
+        cmd.extend(["--generated-at", args.generated_at])
+    result = run_script("render_architecture_maintainability.py", cmd)
+    print(json.dumps(result["payload"] if result["payload"] is not None else result, ensure_ascii=False, indent=2))
+    return 0 if result["ok"] else 2
+
+
 def command_report(args: argparse.Namespace) -> int:
     steps = []
     if args.refresh_optimization:
@@ -472,6 +490,7 @@ def command_report(args: argparse.Namespace) -> int:
             run_script("render_context_reports.py", []),
             run_script("render_portability_report.py", []),
             run_script("python_compat_check.py", [str(ROOT)]),
+            run_script("render_architecture_maintainability.py", [str(ROOT)]),
             run_script("render_reference_synthesis.py", [str(ROOT)]),
             run_script("render_artifact_design_profile.py", [str(ROOT)]),
             run_script("render_prompt_quality_profile.py", [str(ROOT)]),
@@ -506,6 +525,7 @@ def command_report(args: argparse.Namespace) -> int:
             "context_budget": "reports/context_budget.json",
             "portability_score": "reports/portability_score.json",
             "python_compatibility": "reports/python_compatibility.json",
+            "architecture_maintainability": "reports/architecture_maintainability.json",
             "reference_synthesis": "reports/reference-synthesis.json",
             "artifact_design_profile": "reports/artifact-design-profile.json",
             "prompt_quality_profile": "reports/prompt-quality-profile.json",
@@ -1283,6 +1303,7 @@ def command_workspace_flow(args: argparse.Namespace) -> int:
             {"phase": "report-refresh", "result": run_script("render_context_reports.py", [])},
             {"phase": "report-refresh", "result": run_script("render_portability_report.py", [])},
             {"phase": "report-refresh", "result": run_script("python_compat_check.py", [str(ROOT)])},
+            {"phase": "report-refresh", "result": run_script("render_architecture_maintainability.py", [str(ROOT)])},
             {"phase": "report-refresh", "result": run_script("compile_skill.py", [str(ROOT)])},
             {"phase": "report-refresh", "result": run_script("render_adoption_drift_report.py", [str(ROOT)])},
             {"phase": "report-refresh", "result": run_script("render_telemetry_hook_recipes.py", [str(ROOT)])},
diff --git a/scripts/yao_cli_parser.py b/scripts/yao_cli_parser.py
index 23bbc48c..8bd74a20 100644
--- a/scripts/yao_cli_parser.py
+++ b/scripts/yao_cli_parser.py
@@ -93,6 +93,18 @@ def build_parser(command_handlers: dict[str, Callable[[argparse.Namespace], int]
     python_compat_cmd.add_argument("--generated-at")
     python_compat_cmd.set_defaults(func=_handler(command_handlers, "command_python_compat"))
 
+    architecture_audit_cmd = subparsers.add_parser(
+        "architecture-audit",
+        help="Render maintainability evidence for large Python files and CLI command surface.",
+    )
+    architecture_audit_cmd.add_argument("skill_dir", nargs="?", default=".")
+    architecture_audit_cmd.add_argument("--output-json")
+    architecture_audit_cmd.add_argument("--output-md")
+    architecture_audit_cmd.add_argument("--warn-lines", type=int, default=900)
+    architecture_audit_cmd.add_argument("--block-lines", type=int, default=1500)
+    architecture_audit_cmd.add_argument("--generated-at")
+    architecture_audit_cmd.set_defaults(func=_handler(command_handlers, "command_architecture_audit"))
+
     review_cmd = subparsers.add_parser("review", help="Locate the current bundle and human review stub for a target.")
     review_cmd.add_argument(
         "--target",
@@ -448,10 +460,12 @@ def build_parser(command_handlers: dict[str, Callable[[argparse.Namespace], int]
     review_waivers_cmd.add_argument(
         "--gate-key",
         choices=[
+            "architecture-maintainability",
             "context-budget",
             "intent-canvas",
             "operations-loop",
             "output-lab",
+            "python-compat",
             "registry-audit",
             "release-notes",
             "runtime-matrix",
@@ -489,10 +503,12 @@ def build_parser(command_handlers: dict[str, Callable[[argparse.Namespace], int]
     review_annotations_cmd.add_argument(
         "--gate-key",
         choices=[
+            "architecture-maintainability",
             "context-budget",
             "intent-canvas",
             "operations-loop",
             "output-lab",
+            "python-compat",
             "registry-audit",
             "release-notes",
             "review-waivers",
@@ -500,6 +516,7 @@ def build_parser(command_handlers: dict[str, Callable[[argparse.Namespace], int]
             "skill-atlas",
             "trigger-lab",
             "trust-report",
+            "world-class-evidence",
             "permission-gates",
             "permission-runtime",
         ],
diff --git a/skill-ir/examples/yao-meta-skill.json b/skill-ir/examples/yao-meta-skill.json
index 6281aa9f..1e331dcb 100644
--- a/skill-ir/examples/yao-meta-skill.json
+++ b/skill-ir/examples/yao-meta-skill.json
@@ -135,6 +135,7 @@
       "scripts/python_compat_check.py",
       "scripts/registry_audit.py",
       "scripts/render_adoption_drift_report.py",
+      "scripts/render_architecture_maintainability.py",
       "scripts/render_artifact_design_profile.py",
       "scripts/render_baseline_compare.py",
       "scripts/render_benchmark_reproducibility.py",
@@ -186,8 +187,7 @@
       "scripts/upgrade_check.py",
       "scripts/validate_skill.py",
       "scripts/verify_package.py",
-      "scripts/yao.py",
-      "scripts/yao_cli_config.py"
+      "scripts/yao.py"
     ],
     "assets": [
       "templates/basic_skill.md.j2",
diff --git a/skill_atlas/catalog.json b/skill_atlas/catalog.json
index 89055cfc..2bcae1de 100644
--- a/skill_atlas/catalog.json
+++ b/skill_atlas/catalog.json
@@ -1,6 +1,6 @@
 {
   "workspace_root": ".",
-  "generated_at": "2026-06-13",
+  "generated_at": "2026-06-14",
   "skills": [
     {
       "name": "yao-meta-skill",
@@ -47,6 +47,7 @@
         "scripts/python_compat_check.py",
         "scripts/registry_audit.py",
         "scripts/render_adoption_drift_report.py",
+        "scripts/render_architecture_maintainability.py",
         "scripts/render_artifact_design_profile.py",
         "scripts/render_baseline_compare.py",
         "scripts/render_benchmark_reproducibility.py",
@@ -165,8 +166,8 @@
         "report": "reports/adoption_drift_report.json",
         "risk_band": "low",
         "event_count": 1,
-        "adoption_sample_count": 1,
-        "adoption_rate": 100.0,
+        "adoption_sample_count": 0,
+        "adoption_rate": 0,
         "candidate_count": 0
       }
     },
diff --git a/skill_atlas/stale_skills.json b/skill_atlas/stale_skills.json
index 6602e829..a3919831 100644
--- a/skill_atlas/stale_skills.json
+++ b/skill_atlas/stale_skills.json
@@ -24,7 +24,7 @@
     "name": "incident-command-governor",
     "path": "examples/governed-incident-command/generated-skill",
     "reason": "review overdue by cadence monthly",
-    "age_days": 74,
+    "age_days": 75,
     "allowed_days": 31,
     "actionable": false,
     "scope": "example"
diff --git a/tests/verify_architecture_maintainability.py b/tests/verify_architecture_maintainability.py
new file mode 100644
index 00000000..297ed64d
--- /dev/null
+++ b/tests/verify_architecture_maintainability.py
@@ -0,0 +1,83 @@
+#!/usr/bin/env python3
+import json
+import shutil
+import subprocess
+import sys
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parent.parent
+SCRIPT = ROOT / "scripts" / "render_architecture_maintainability.py"
+
+
+def main() -> None:
+    tmp = ROOT / "tests" / "tmp_architecture_maintainability"
+    if tmp.exists():
+        shutil.rmtree(tmp)
+    tmp.mkdir(parents=True, exist_ok=True)
+
+    output_json = tmp / "architecture_maintainability.json"
+    output_md = tmp / "architecture_maintainability.md"
+    proc = subprocess.run(
+        [
+            sys.executable,
+            str(SCRIPT),
+            str(ROOT),
+            "--output-json",
+            str(output_json),
+            "--output-md",
+            str(output_md),
+            "--generated-at",
+            "2026-06-14",
+        ],
+        cwd=ROOT,
+        capture_output=True,
+        text=True,
+        check=True,
+    )
+    payload = json.loads(proc.stdout)
+    assert payload["ok"], payload
+    assert payload["summary"]["decision"] == "watch-maintainability-hotspots", payload["summary"]
+    assert payload["summary"]["hotspot_count"] >= 3, payload["summary"]
+    assert payload["summary"]["blocker_count"] == 0, payload["summary"]
+    assert payload["summary"]["command_handler_count"] >= 50, payload["summary"]
+    assert payload["summary"]["largest_file_lines"] >= 900, payload["summary"]
+    assert payload["largest_files"][0]["path"] == "scripts/yao.py", payload["largest_files"][0]
+    assert payload["largest_files"][0]["severity"] == "warn", payload["largest_files"][0]
+    hotspot_paths = {item["path"] for item in payload["hotspots"]}
+    assert {"scripts/yao.py", "scripts/render_review_studio.py"} <= hotspot_paths, hotspot_paths
+    assert output_json.exists(), output_json
+    markdown = output_md.read_text(encoding="utf-8")
+    assert "# Architecture Maintainability" in markdown, markdown
+    assert "Split command handlers by domain" in markdown, markdown
+    assert "Do not split a file only for line count" in markdown, markdown
+
+    blocker_proc = subprocess.run(
+        [
+            sys.executable,
+            str(SCRIPT),
+            str(ROOT),
+            "--output-json",
+            str(tmp / "architecture_blocker.json"),
+            "--output-md",
+            str(tmp / "architecture_blocker.md"),
+            "--warn-lines",
+            "10",
+            "--block-lines",
+            "100",
+            "--generated-at",
+            "2026-06-14",
+        ],
+        cwd=ROOT,
+        capture_output=True,
+        text=True,
+    )
+    assert blocker_proc.returncode == 2, blocker_proc.stdout
+    blocker_payload = json.loads(blocker_proc.stdout)
+    assert blocker_payload["ok"] is False, blocker_payload
+    assert blocker_payload["summary"]["blocker_count"] > 0, blocker_payload["summary"]
+    print(json.dumps({"ok": True}, ensure_ascii=False, indent=2))
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tests/verify_review_studio.py b/tests/verify_review_studio.py
index 7fa7d7d6..446bba09 100644
--- a/tests/verify_review_studio.py
+++ b/tests/verify_review_studio.py
@@ -225,6 +225,19 @@ def main() -> None:
         capture_output=True,
         text=True,
     )
+    subprocess.run(
+        [
+            sys.executable,
+            str(ROOT / "scripts" / "render_architecture_maintainability.py"),
+            str(ROOT),
+            "--generated-at",
+            "2026-06-13",
+        ],
+        cwd=ROOT,
+        check=True,
+        capture_output=True,
+        text=True,
+    )
     for script_name in [
         "render_skill_os2_audit.py",
         "render_world_class_evidence_plan.py",
@@ -262,17 +275,22 @@ def main() -> None:
     assert payload["ok"], payload
     assert payload["schema_version"] == "2.0", payload
     assert payload["summary"]["decision"] == "review", payload
-    assert payload["summary"]["gate_count"] == 15, payload
-    assert payload["summary"]["world_class_score"] == 90, payload
-    assert payload["summary"]["warning_count"] == 3, payload
+    assert payload["summary"]["gate_count"] == 16, payload
+    assert payload["summary"]["world_class_score"] == 89, payload
+    assert payload["summary"]["warning_count"] == 4, payload
     assert payload["summary"]["blocker_count"] == 0, payload
-    assert payload["summary"]["action_count"] == 3, payload
+    assert payload["summary"]["action_count"] == 4, payload
     assert payload["summary"]["annotation_count"] == 0, payload
     assert payload["summary"]["open_annotation_blocker_count"] == 0, payload
     assert payload["summary"]["action_count"] == payload["summary"]["warning_count"] + payload["summary"]["blocker_count"], payload
-    assert {item["gate_key"] for item in payload["review_actions"]} == {"output-lab", "review-waivers", "world-class-evidence"}, payload
+    assert {item["gate_key"] for item in payload["review_actions"]} == {
+        "output-lab",
+        "architecture-maintainability",
+        "review-waivers",
+        "world-class-evidence",
+    }, payload
     gate_keys = {item["key"] for item in payload["gates"]}
-    assert {"intent-canvas", "trigger-lab", "output-lab", "runtime-matrix", "trust-report", "python-compat", "permission-gates", "permission-runtime", "skill-atlas", "operations-loop", "review-waivers", "world-class-evidence", "registry-audit", "release-notes"} <= gate_keys, payload
+    assert {"intent-canvas", "trigger-lab", "output-lab", "runtime-matrix", "trust-report", "python-compat", "architecture-maintainability", "permission-gates", "permission-runtime", "skill-atlas", "operations-loop", "review-waivers", "world-class-evidence", "registry-audit", "release-notes"} <= gate_keys, payload
     output_gate = next(item for item in payload["gates"] if item["key"] == "output-lab")
     assert output_gate["status"] == "warn", output_gate
     assert "5/5 cases" in output_gate["detail"], output_gate
@@ -299,6 +317,12 @@ def main() -> None:
     assert "0 compatibility issues" in python_compat_gate["detail"], python_compat_gate
     assert "0 f-string 3.11 hazards" in python_compat_gate["detail"], python_compat_gate
     assert python_compat_gate["evidence"] == "reports/python_compatibility.json", python_compat_gate
+    architecture_gate = next(item for item in payload["gates"] if item["key"] == "architecture-maintainability")
+    assert architecture_gate["status"] == "warn", architecture_gate
+    assert "3 hotspots" in architecture_gate["detail"], architecture_gate
+    assert "0 blockers" in architecture_gate["detail"], architecture_gate
+    assert "CLI handlers" in architecture_gate["detail"], architecture_gate
+    assert architecture_gate["evidence"] == "reports/architecture_maintainability.json", architecture_gate
     permission_gate = next(item for item in payload["gates"] if item["key"] == "permission-gates")
     assert permission_gate["status"] == "pass", permission_gate
     assert "permissions approved" in permission_gate["detail"], permission_gate
@@ -321,7 +345,7 @@ def main() -> None:
     assert "reports/adoption_drift_report.json" in operations_gate["evidence"], operations_gate
     waivers_gate = next(item for item in payload["gates"] if item["key"] == "review-waivers")
     assert waivers_gate["status"] == "warn", waivers_gate
-    assert "warning gates still need reviewer decision" in waivers_gate["detail"], waivers_gate
+    assert "2 warning gates still need reviewer decision" in waivers_gate["detail"], waivers_gate
     assert "reports/review_waivers.json" in waivers_gate["evidence"], waivers_gate
     world_class_gate = next(item for item in payload["gates"] if item["key"] == "world-class-evidence")
     assert world_class_gate["status"] == "warn", world_class_gate
@@ -339,6 +363,7 @@ def main() -> None:
     assert full_payload["evidence_paths"]["output_review_decisions"] == "reports/output_review_decisions.json", full_payload["evidence_paths"]
     assert full_payload["evidence_paths"]["output_review_adjudication"] == "reports/output_review_adjudication.md", full_payload["evidence_paths"]
     assert full_payload["evidence_paths"]["python_compatibility"] == "reports/python_compatibility.md", full_payload["evidence_paths"]
+    assert full_payload["evidence_paths"]["architecture_maintainability"] == "reports/architecture_maintainability.md", full_payload["evidence_paths"]
     if (ROOT / "reports" / "benchmark_reproducibility.md").exists():
         assert full_payload["evidence_paths"]["benchmark_reproducibility"] == "reports/benchmark_reproducibility.md", full_payload["evidence_paths"]
     if (ROOT / "reports" / "skill_os2_coverage.md").exists():
@@ -367,8 +392,18 @@ def main() -> None:
     assert full_payload["evidence_paths"]["runtime_permissions"] == "reports/runtime_permission_probes.md", full_payload["evidence_paths"]
     assert full_payload["data"]["python_compatibility"]["summary"]["target_python"] == "3.11", full_payload["data"]["python_compatibility"]
     assert full_payload["data"]["python_compatibility"]["summary"]["issue_count"] == 0, full_payload["data"]["python_compatibility"]
+    assert full_payload["data"]["architecture_maintainability"]["summary"]["hotspot_count"] >= 3, full_payload["data"]["architecture_maintainability"]
+    assert full_payload["data"]["architecture_maintainability"]["summary"]["blocker_count"] == 0, full_payload["data"]["architecture_maintainability"]
     action_keys = {item["gate_key"] for item in full_payload["review_actions"]}
-    assert action_keys == {"output-lab", "review-waivers", "world-class-evidence"}, full_payload["review_actions"]
+    assert action_keys == {"output-lab", "architecture-maintainability", "review-waivers", "world-class-evidence"}, full_payload["review_actions"]
+    architecture_action = next(item for item in full_payload["review_actions"] if item["gate_key"] == "architecture-maintainability")
+    assert {item["path"] for item in architecture_action["source_refs"]} >= {
+        "reports/architecture_maintainability.md",
+        "scripts/yao.py",
+        "scripts/render_review_studio.py",
+        "scripts/render_review_viewer.py",
+    }, architecture_action
+    assert all(item["exists"] for item in architecture_action["source_refs"]), architecture_action
     world_class_action = next(item for item in full_payload["review_actions"] if item["gate_key"] == "world-class-evidence")
     assert {item["path"] for item in world_class_action["source_refs"]} >= {
         "reports/world_class_evidence_ledger.md",
@@ -489,6 +524,10 @@ def main() -> None:
     assert "Python 兼容" in html, html[:10000]
     assert "解释器边界" in html, html[:10000]
     assert "reports/python_compatibility.md" in html, html
+    assert "架构维护" in html, html
+    assert "Arch Debt" in html, html
+    assert "reports/architecture_maintainability.md" in html, html
+    assert "处理大文件和 CLI command surface 的维护性热点" in html, html
     assert "kv-grid" in html, html
     assert "案例数" in html, html
     assert "命令执行" in html, html
diff --git a/tests/verify_yao_cli.py b/tests/verify_yao_cli.py
index 953281a0..8b2aee11 100644
--- a/tests/verify_yao_cli.py
+++ b/tests/verify_yao_cli.py
@@ -74,6 +74,7 @@ def main() -> None:
     assert "quickstart" in parser_help, parser_help
     assert "review-studio" in parser_help, parser_help
     assert "python-compat" in parser_help, parser_help
+    assert "architecture-audit" in parser_help, parser_help
     assert "skill-os2-audit" in parser_help, parser_help
     assert "skill-os2-coverage" in parser_help, parser_help
     assert "world-class-evidence" in parser_help, parser_help
@@ -200,6 +201,21 @@ def main() -> None:
     assert python_compat_result["payload"]["summary"]["issue_count"] == 0, python_compat_result
     assert python_compat_result["payload"]["summary"]["file_count"] >= 50, python_compat_result
 
+    architecture_result = run(
+        "architecture-audit",
+        str(ROOT),
+        "--output-json",
+        str(tmp_root / "architecture_maintainability.json"),
+        "--output-md",
+        str(tmp_root / "architecture_maintainability.md"),
+        "--generated-at",
+        "2026-06-14",
+    )
+    assert architecture_result["ok"], architecture_result
+    assert architecture_result["payload"]["summary"]["hotspot_count"] >= 3, architecture_result
+    assert architecture_result["payload"]["summary"]["blocker_count"] == 0, architecture_result
+    assert architecture_result["payload"]["summary"]["command_handler_count"] >= 50, architecture_result
+
     world_class_evidence_result = run(
         "world-class-evidence",
         str(ROOT),
@@ -382,10 +398,15 @@ def main() -> None:
     review_studio_result = run("review-studio", str(created))
     assert review_studio_result["ok"], review_studio_result
     assert review_studio_result["payload"]["artifacts"]["html"].endswith("reports/review-studio.html"), review_studio_result
-    assert review_studio_result["payload"]["summary"]["gate_count"] == 15, review_studio_result
+    assert review_studio_result["payload"]["summary"]["gate_count"] == 16, review_studio_result
     created_world_class_gate = next(item for item in review_studio_result["payload"]["gates"] if item["key"] == "world-class-evidence")
     assert created_world_class_gate["status"] == "pass", created_world_class_gate
     assert "optional" in created_world_class_gate["detail"], created_world_class_gate
+    created_architecture_gate = next(
+        item for item in review_studio_result["payload"]["gates"] if item["key"] == "architecture-maintainability"
+    )
+    assert created_architecture_gate["status"] == "pass", created_architecture_gate
+    assert "optional" in created_architecture_gate["detail"], created_architecture_gate
 
     review_waivers_result = run(
         "review-waivers",
@@ -673,6 +694,7 @@ def main() -> None:
     assert "iteration_ledger" in report_result["payload"]["artifacts"], report_result
     assert "portability_score" in report_result["payload"]["artifacts"], report_result
     assert "python_compatibility" in report_result["payload"]["artifacts"], report_result
+    assert "architecture_maintainability" in report_result["payload"]["artifacts"], report_result
     assert "artifact_design_profile" in report_result["payload"]["artifacts"], report_result
     assert "prompt_quality_profile" in report_result["payload"]["artifacts"], report_result
     assert "compiled_targets" in report_result["payload"]["artifacts"], report_result