# Skill OS 2.0 Review

Review date: 2026-06-13
Scope: Yao Meta Skill against the user-provided Skill OS 2.0 upgrade plan.

## Verdict

Yao Meta Skill is no longer only a Meta Skill factory. The current working tree now has the first verifiable Skill OS foundation:

- Skill IR v0 for platform-neutral contract capture.
- Output Eval Lab v0 for with-skill vs baseline assertion grading plus local command-runner execution evidence, blind A/B review pack, separate answer key evidence, reviewer decision import, and adjudication reporting.
- Runtime Conformance v0 for target-consumption checks.
- Trust/Security v0 for secret, dependency, script, bounded network host policy, execution-level CLI help smoke checks, trust metadata, and stable source-contract integrity checks.
- Skill Atlas v0 for portfolio catalog, route overlap, stale ownership, dependency signals, aggregate drift signals, and no-route opportunities.
- Bilingual Skill Overview v2 that includes these evidence surfaces.
- Skill Overview Asset Split v0 so long report CSS and JavaScript live in `assets/skill-overview.css` and `assets/skill-overview.js`, while the Python layout module keeps the generated report single-file by inlining those assets at render time.
- Review Studio Source Anchor Excerpts v0 so every non-pass action source ref carries a matched pattern and short line excerpt, letting reviewers understand the anchor before opening the full artifact.
- Review Studio World-Class Collection Contract v0 so each pending world-class evidence action card shows provenance requirements, success checks, evidence artifacts, and privacy boundaries alongside commands and blocked checks.
- Review Studio Asset Split v0 so long Review Studio CSS lives in `assets/review-studio.css`, while the Python layout module still inlines it into the generated static HTML report.
- Skill OS 2.0 Audit v0 for requirement-by-requirement evidence mapping, with explicit separation between local evidence, human-required review, and external-required provider/client integrations.
- World-Class Evidence Plan v0 that turns the remaining provider holdout, human adjudication, native permission enforcement, and native client telemetry gaps into executable runbooks with success checks and privacy contracts.
- World-Class Evidence Ledger v0 that records current acceptance state, provenance requirements, privacy contracts, and anti-overclaim guards for those remaining gaps.
- World-Class Intake Contract Hardening v0 so real evidence submissions must use the ledger's canonical `<evidence-key>.json` filename and are recursively rejected when they include raw prompt, output, transcript, message, credential, secret, token, or API-key fields.
- World-Class Human Evidence Guard v0 so human-adjudication decision artifacts recursively reject raw content, credential, secret, token, and answer-key fields before blind A/B review evidence can be accepted.
- Output Review Privacy Guard v0 so the blind-review importer and world-class human evidence validator share one recursive blocked-field contract for raw content, credential, secret, token, and answer-key leakage.
- World-Class Submission Privacy Guard v0 so real evidence submission packets reuse the same blocked-field contract and reject nested answer-key leakage before ledger review.
- World-Class Provider Evidence Guard v0 so provider holdout submissions must reconcile `summary` counts with `runs` rows and include at least one passing model run whose provider, model, timing, non-estimated usage, and output hash match the submitted provenance.
- World-Class Native Permission Evidence Guard v0 so native-permission submissions must reconcile runtime probe summary counts with target rows, require at least one native-enforced target row, and keep installer permission checks failure-free.
- World-Class Native Telemetry Evidence Guard v0 so native-client-telemetry submissions must reconcile adoption summary counts with external metadata event rows and keep hook recipes metadata-only without claiming native auto-capture.
- World-Class Submission Matrix v0 so the submission kit exposes a single operator-facing matrix for draft status, artifact readiness, source-check blockers, and the next action without counting matrix rows as completion evidence.
- World-Class Repair Checklist v0 so the submission kit turns every draft, artifact, and source-check blocker into machine-readable repair rows without counting repair guidance as completion evidence.
- World-Class Preflight Repair Rows v0 so the collection preflight exposes required precheck and source-check blockers as machine-readable operator actions before evidence submission.
- World-Class Submission Artifact Roles v0 so submission kits distinguish `submission-ref` rows that belong in `artifact_refs` from supporting audit assets, reducing operator ambiguity without accepting evidence.
- World-Class Submission Kit Rendering v0 so Markdown and HTML kit presentation lives in a dedicated internal renderer, keeping the CLI focused on evidence assembly and file emission.
- Benchmark Reproducibility v0 that turns public benchmark methodology, required artifacts, failure disclosure, and reproduction commands into machine-checkable release evidence.
- Review Studio 2.0 v0 for one-page blocker, warning, evidence-path, review-action, and release-gate review.
- Review Studio Source Refs v0 so every non-pass review action can expose structured relative source/report links with best-effort line numbers.
- Target Compiler v0 so Skill IR compiles into OpenAI, Claude, generic, Agent Skills compatible, and VS Code / Copilot target contracts before packaging, including target-specific permission contracts and native behavior contracts.
- IR-first packaging v0 so adapters carry the platform-neutral semantic contract, compiler contract, parity checks, IR provenance, and VS Code / Copilot install-scope notes where applicable.
- Registry & Distribution v0 for package metadata, checksum, owner, license, compatibility matrix, and audit reporting.
- Package Verification v0 for generated manifest, target adapters, zip archive safety, archive checksum, and registry parity.
- Install Simulation v0 for local extraction, entrypoint loading, interface loading, report presence, adapter readability, and installer-level permission approval/enforcement checks.
- Upgrade Check v0 for registry package diffs, semver bump recommendations, breaking-change notes, and release evidence.
- Adoption Drift v0 for local-first metadata-only telemetry, privacy-field blocking, usage-signal aggregation, iteration candidate generation, and Skill Atlas drift-signal input.
- CLI Telemetry Capture v0 for opt-in `yao.py` command-run metadata that records command name, source, outcome, failure class, and timestamp without command arguments or raw user/model content.
- External Telemetry Import v0 for whole-file validated metadata-only JSONL ingestion from non-CLI clients, with dry-run support and all-or-nothing rejection on raw content fields or schema violations.
- Telemetry Emit Hook v0 for Browser/Chrome/IDE/wrapper integrations to append one validated metadata-only external event into a local spool before import, with dry-run validation and raw-content blocking.
- Telemetry Hook Recipes v0 for Browser, Chrome, VS Code, CLI wrapper, and provider-adapter recipe generation with dry-run commands, metadata-only privacy checks, and explicit non-claiming of native host integration.
- Telemetry Native Host v0 for Browser/Chrome Native Messaging length-prefixed stdio, metadata-only event validation, local launcher generation, and Chrome host manifest generation.
- Review Waivers v0 for human warning acceptance with reviewer, reason, scope, expiry, and blocker-safe policy.
- Governed Permission Gates v0 for reviewer-approved network, file-write, and subprocess capabilities with scope, reason, expiry, evidence, and target-enforcement mapping.
- Runtime Permission Probes v0 for packaged target adapter checks, explicit native-enforcement flags, metadata fallback evidence, and residual permission risks.
- Local Install Sync Preflight v0 so source-to-local and source-to-active install syncs rebuild the package first, run install simulation, enforce installer permission coverage, and refuse to copy files before any destructive sync when the package is not install-ready.
- Atlas Scope Policy v0 so examples, evolution snapshots, embedded generated skills, and validator fixtures remain visible in the full portfolio report without polluting release-actionable gates.
- Review Annotations v0 for reviewer comments tied to Review Studio gates, source/report paths, and optional line numbers; open blocker annotations now block the Review Studio decision.
- Review Studio now avoids over-claiming release readiness when blind A/B adjudication, waiver handling, and world-class evidence are still pending: the root Meta Skill is in `review` with score `91`, no blockers, `3` warnings, and explicit actions for Output Lab reviewer adjudication, waiver handling, and world-class evidence completion.
- Review Studio Output Lab actions now link directly to `reports/output_review_decisions.json`, so pending blind A/B reviewer decisions have a concrete template instead of only a general adjudication warning.
- Output Review Adjudication now preserves blind-review integrity by hiding expected winners for pending or invalid reviewer decisions; answer keys are revealed only after a valid A/B decision exists for that case.
- Output Review Import v0 now accepts reviewer JSON, JSONL, or CSV decision sources, recursively rejects raw prompt/output/transcript/message, credential, secret, token, and answer-key fields case-insensitively, writes canonical `reports/output_review_decisions.json`, and can run adjudication immediately without opening the answer key before valid decisions exist.
- Provider Output Eval Runner v0 so `python3 scripts/yao.py output-exec --provider-runner openai` can collect real provider-backed model evidence through a reviewed OpenAI Responses API compatible runner instead of ad hoc shell glue.
- Weekly SkillOps Curator v0 so daily SkillOps opportunities, Skill Atlas portfolio signals, release-lock state, and world-class evidence gaps roll up into a proposal-only weekly maintenance queue without source-file writes.

This is still not the final world-class state. Target-native behavior contracts are now explicit, VS Code / Copilot package metadata is auditable, provider-backed output-eval execution is wired through DeepSeek evidence, blind-review answers remain hidden until valid decisions exist, a provider-backed output runner exists, installer-level permission coverage is now locally enforced during install simulation and local install sync, opt-in `yao.py` CLI telemetry can capture metadata-only real run signals, external clients can now emit one validated metadata-only event into a local spool, hook recipes now make Browser/Chrome/VS Code/wrapper/provider-adapter integration commands auditable, a Browser/Chrome Native Messaging host can receive length-prefixed metadata events and generate a local launcher plus manifest, validated external JSONL imports can bring those non-CLI client signals into the same drift loop, and Skill Atlas now consumes aggregate drift reports. World-class intake now rejects non-canonical submission filenames and nested raw content or credential-like fields before ledger review. The preflight and submission kit now give operators repair rows, matrix state, artifact readiness, source blockers, and next actions for each pending world-class evidence key. Review Studio keeps pending human adjudication, waiver handling, and pending world-class evidence visible as warnings instead of treating them as a clean pass. Accepted external ledger evidence, real human adjudication decisions, installed platform-native client telemetry implementations, provider-native installer integration, and native runtime permission enforcement remain open.

## Coverage Matrix

| 2.0 Area | Current Evidence | Status |
| --- | --- | --- |
| Skill IR | `skill-ir/schema.json`, `skill-ir/examples/yao-meta-skill.json`, `scripts/export_skill_ir.py` | v0 landed |
| Target Compiler | `scripts/compile_skill.py`, `scripts/compile_skill_targets.py`, `reports/compiled_targets.md`, `tests/verify_compile_skill.py` | v0 landed |
| Output Eval Lab | `evals/output/cases.jsonl`, `scripts/run_output_eval.py`, `scripts/run_output_execution.py`, `scripts/local_output_eval_runner.py`, `scripts/provider_output_eval_runner.py`, `scripts/import_output_review_decisions.py`, `scripts/output_review_privacy.py`, `scripts/adjudicate_output_review.py`, `reports/output_quality_scorecard.md`, `reports/output_execution_runs.md`, `reports/output_blind_review_pack.md`, `reports/output_blind_answer_key.json`, `reports/output_review_decisions.json`, `reports/output_review_adjudication.md` | v0 landed |
| Benchmark methodology | `reports/benchmark_methodology.md` | v0 landed |
| Benchmark Reproducibility | `scripts/render_benchmark_reproducibility.py`, `reports/benchmark_reproducibility.md`, `tests/verify_benchmark_reproducibility.py` | v0 landed |
| Skill OS 2.0 Audit | `scripts/render_skill_os2_audit.py`, `reports/skill_os2_audit.md`, `tests/verify_skill_os2_audit.py` | v0 landed |
| World-Class Evidence Plan | `scripts/render_world_class_evidence_plan.py`, `reports/world_class_evidence_plan.md`, `tests/verify_world_class_evidence_plan.py` | v0 landed |
| World-Class Evidence Ledger | `scripts/render_world_class_evidence_ledger.py`, `reports/world_class_evidence_ledger.md`, `tests/verify_world_class_evidence_ledger.py` | v0 landed |
| World-Class Evidence Intake | `scripts/world_class_evidence_contract.py`, `scripts/world_class_human_evidence.py`, `scripts/output_review_privacy.py`, `scripts/world_class_provider_evidence.py`, `scripts/world_class_native_permission_evidence.py`, `scripts/world_class_native_telemetry_evidence.py`, `scripts/render_world_class_evidence_intake.py`, `evidence/world_class/intake.schema.json`, `tests/verify_world_class_evidence_intake.py` with canonical filename, source-artifact validation, recursive human decision privacy and answer-key validation, provider run-row validation, native permission target-row validation, native telemetry event-row validation, nested raw-field rejection, and real-submission answer-key leakage rejection | v0 landed |
| World-Class Submission Kit | `scripts/prepare_world_class_submission_kit.py`, `scripts/world_class_submission_matrix.py`, `scripts/world_class_repair_checklist.py`, `scripts/world_class_submission_kit_rendering.py`, `tests/verify_world_class_submission_kit.py` with draft, artifact, source-check, next-action matrix evidence, machine-readable repair rows, and separated Markdown/HTML rendering | v0 landed |
| Runtime Conformance | `scripts/run_conformance_suite.py`, `reports/conformance_matrix.md` | v0 landed |
| Trust & Security | `scripts/trust_check.py`, `reports/security_trust_report.md`, `security/*.md` | v0 landed |
| Review Studio 2.0 | `scripts/render_review_studio.py`, `reports/review-studio.html`, `reports/review-studio.json` with per-warning `review_actions` | v0 landed |
| Review Studio Source Refs | `scripts/render_review_studio.py`, `tests/verify_review_studio.py`, `references/review-studio-method.md` | v0 landed |
| Review Annotations | `scripts/render_review_annotations.py`, `reports/review_annotations.md`, `tests/verify_review_annotations.py`, Review Studio annotation panel and blocker decision hook | v0 landed |
| Weekly SkillOps Curator | `scripts/render_weekly_curator_report.py`, `reports/skillops/weekly/2026-W25.md`, `tests/verify_weekly_curator.py`, proposal-only maintenance queue with no source writes | v0 landed |
| Skill Atlas | `scripts/build_skill_atlas.py`, `skill_atlas/catalog.json`, `skill_atlas/route_overlap_matrix.csv`, `skill_atlas/drift_signals.json`, `reports/skill_atlas.html` | v0 landed |
| Registry & Distribution | `registry/*.schema.json`, `scripts/registry_audit.py`, `reports/registry_audit.md`, `registry/packages/yao-meta-skill.json` | v0 landed |
| Package Verification | `scripts/verify_package.py`, `reports/package_verification.md`, `tests/verify_package_verification.py` | v0 landed |
| Install Simulation | `scripts/simulate_install.py`, `reports/install_simulation.md`, `tests/verify_install_simulation.py` with installer permission coverage checks | v0 landed |
| Local Install Sync Preflight | `scripts/sync_local_install.py`, `tests/verify_local_install_sync.py`, `Makefile` package-check prerequisites | v0 landed |
| Upgrade Check | `scripts/upgrade_check.py`, `reports/upgrade_check.md`, `tests/verify_upgrade_check.py` | v0 landed |
| Telemetry & Drift | `scripts/render_adoption_drift_report.py`, `scripts/yao_cli_telemetry.py`, `scripts/emit_telemetry_event.py`, `scripts/render_telemetry_hook_recipes.py`, `scripts/telemetry_native_host.py`, `scripts/import_telemetry_events.py`, `reports/adoption_drift_report.md`, `reports/telemetry_hook_recipes.md`, `tests/verify_adoption_drift.py`, `tests/verify_telemetry_emit.py`, `tests/verify_telemetry_hooks.py`, `tests/verify_telemetry_native_host.py`, `tests/verify_telemetry_import.py`, `tests/verify_yao_cli.py`, `references/telemetry-drift-method.md` | v0 landed |
| Review Waivers | `scripts/render_review_waivers.py`, `reports/review_waivers.md`, `tests/verify_review_waivers.py`, `references/review-waiver-method.md` | v0 landed |
| Governed Permission Gates | `security/permission_policy.json`, `scripts/trust_check.py`, `scripts/render_review_studio.py`, `tests/verify_trust_check.py`, `tests/verify_review_studio.py` | v0 landed |
| Runtime Permission Probes | `scripts/probe_runtime_permissions.py`, `reports/runtime_permission_probes.md`, `tests/verify_runtime_permission_probes.py`, `tests/verify_review_studio.py` | v0 landed |
| Atlas Scope Policy | `skill_atlas/policy.json`, `scripts/build_skill_atlas.py`, `tests/verify_skill_atlas.py` | v0 landed |
| Compiler from IR | Packager consumes compiled target contracts for compiler provenance, generated files, adapter modes, permissions, preserved semantics, warnings, and unsupported features | v0 landed |
| Target Native Contracts | `scripts/compile_skill.py`, `scripts/compile_skill_targets.py`, `scripts/cross_packager.py`, `reports/compiled_targets.md`, adapter snapshots, and generated target outputs carry native surface, activation policy, resource/script strategy, permission enforcement, install scope, review artifacts, fallback behavior, and unsupported native features | v0 landed |

## Top Findings

### 1. Target-native behavior contracts are landed, but provider execution is still shallow

`scripts/compile_skill.py` now reads Skill IR and emits target-specific contracts for OpenAI, Claude, generic, Agent Skills compatible, and VS Code / Copilot outputs, with target platform models and contract builders isolated in `scripts/compile_skill_targets.py`. The packager embeds `compiler`, `compiled_contract`, `permission_contract`, `target_permission_contract`, `target_native_contract`, `target_transform`, warnings, and unsupported-feature notes in each adapter. The native contract makes the target surface, activation policy, resource strategy, script strategy, permission enforcement mode, install scope, review artifacts, fallback behavior, and unsupported native features reviewable instead of implicit.

Next move: deepen provider-native execution transforms so OpenAI, Claude, VS Code/Copilot, and generic packages can express and verify behavior through real client or installer capabilities, not only auditable contracts and fallback notes.

### 2. Output eval now has provider-backed model evidence, but human review is still open

The v0 cases now cover five scenarios, including near-neighbor and file-backed governed package cases. Each run emits assertion grading, execution provenance, a blind A/B review pack that hides baseline vs with-skill labels, a separate answer key, an importer for reviewer JSON/JSONL/CSV decision sources, and an adjudication report from reviewer choices. The current root execution report runs all `10` variants through `scripts/provider_output_eval_runner.py` against DeepSeek `deepseek-v4-flash`, so model execution, timing, and token usage are observed rather than estimated. The provider source checks now pass with `10` model-executed runs, `10` observed timing rows, `10` observed token rows, `0` estimated token rows, and no regressions, while the world-class ledger still requires an independent reviewer-approved submission before it counts as accepted evidence. The current root adjudication report intentionally records `0 / 5` human judgments pending instead of pretending human review happened.

Next move: complete independent provider evidence ledger review, then record actual blind A/B reviewer decisions.

### 3. Review Studio is unified and now has reviewer actions plus annotations

The Review Studio page aggregates intent, trigger, output, context, runtime, trust, permission approvals, runtime permission probes, atlas, operations-loop, reviewer waiver, reviewer annotations, registry, world-class evidence, and release gates. It exposes current warnings directly and emits `review_actions` for each non-pass gate with a source-fix location, structured `source_refs`, reason, evidence path, and verification command. It now also loads `reports/review_annotations.json`, renders reviewer comments tied to gates and source/report paths, and blocks the page decision when any open blocker annotation exists. The current root report is intentionally not a clean pass: decision `review`, score `91`, `16` gates, `0` blockers, `3` warnings, `3` actions, and `0` open annotation blockers. The warnings are useful evidence: the automated Output Eval Lab has provider-backed execution but blind A/B adjudication still has `5` pending reviewer decisions, warning waivers still need reviewer handling, and the world-class ledger still has `4` pending external or human evidence entries, so the package should not claim fully reviewed or world-class status.

Next move: add richer source-line anchors inside generated reports, record real reviewer annotations during the next human review pass, and close the provider ledger-review, native-permission, real-client telemetry, and human review evidence entries in the world-class ledger.

### 4. Multi-skill operation now links Atlas with drift, but needs platform-native capture

The new Skill Atlas can scan a workspace and report catalog, route overlap, dependency graph, stale skill, missing owner/review metadata, aggregate drift signals, and no-route opportunities. It now also supports `skill_atlas/policy.json` so release gates distinguish actionable library skills from examples and fixtures while keeping full visibility. Adoption Drift v0 can record metadata-only local events, block raw prompt/output fields, summarize missed-trigger, bad-output, script-error, and review-overdue signals, feed next iteration candidates into Review Studio, and publish aggregate drift input for Atlas. `yao.py` now adds opt-in automatic CLI run capture through `YAO_CLI_TELEMETRY=1` or `--record-cli-telemetry`, recording only `source=yao_cli`, normalized subcommand name, outcome, failure class, and timestamp. `telemetry-emit` gives Browser/Chrome/IDE/wrapper integrations a stable local hook for appending one normalized external event into `.yao/telemetry_spool/external_events.jsonl`, with dry-run validation and no raw content fields. `telemetry-hooks` renders Browser, Chrome, VS Code, CLI wrapper, and provider-adapter recipes with dry-run commands, import commands, trigger points, and explicit `native_auto_capture=false` caveats. `telemetry_native_host.py` now provides a tested Browser/Chrome Native Messaging host: it reads length-prefixed stdio JSON, rejects raw content fields, writes metadata-only events, and generates an operator-installable launcher plus Chrome host manifest. `telemetry-import` accepts already-sanitized external client JSONL or the emitted spool, validates the whole file before appending, supports dry-run, defaults `source=external`, and rejects any raw content or unknown metadata fields without mutating the local event stream. It still needs an installed real extension or provider client that sends production events to the native host.

Next move: install a real Browser/Chrome extension or provider client against the native host and record production metadata events, then let Atlas rank stale, drifting, or conflicting skills by real usage impact.

### 5. Trust report is structural, not full security review

Trust v0 blocks obvious secrets and remote inline execution, and now makes checksum scope explicit: `package_sha256` is a stable source-contract digest that excludes generated reports, packages, and raw local telemetry; archive integrity is carried by Package Verification and Registry as `archive_sha256`. Registry v0 carries both checksums into distributable metadata. Package Verification v0 now checks generated manifests, target adapters, archive path safety, required source entries, and registry parity. Install Simulation v0 now extracts the generated archive into a temporary local skill root, verifies entrypoint, manifest, interface, reports, and adapters, then checks every packaged target/capability pair against the installed `security/permission_policy.json` approval and `target_enforcement` mapping. Local Install Sync Preflight now runs the same install simulation before syncing source into the disabled or active local install path, so a broken package or permission enforcement gap fails before stale files are removed or new files are copied. Upgrade Check v0 now compares package baselines, recommends semver bumps, and blocks breaking changes without an adequate declared version. Trust Report now distinguishes CLI scripts from declared internal modules, so help-surface warnings focus on executable entrypoints. Network-capable scripts are now covered by `security/network_policy.json`, with `allowed_hosts` checked against HTTPS URL literals. Trust Report also executes `python3 scripts/name.py --help` for CLI scripts with `argparse`, recording pass/fail smoke evidence without executing scripts that lack a help surface. Target adapters now carry `permission_contract` and `target_permission_contract` fields, including network, file-write, subprocess, and interactive capability counts. Governed permission gates now require reviewer-approved scope, reason, expiry, evidence, and target-enforcement mapping in `security/permission_policy.json`. Runtime Permission Probes now verify that packaged adapters expose the target permission contract and explicitly report native-enforcement limits. The remaining trust gap is native runtime permission enforcement in real clients/installers.

Next move: add real client or installer permission enforcement integration.

## Current Gate Evidence

| Gate | Current Result |
| --- | --- |
| Output Eval | `5` cases, DeepSeek provider-backed execution for `10 / 10` variants, with-skill pass rate `43.67`, baseline pass rate `23.67`, delta `20.0`, with file-backed, near-neighbor, boundary coverage, `10` command execution runs, `0` recorded fixture runs, `10` provider model-executed runs in root release evidence, `10` observed token rows, `0` estimated token rows, provider runner v0 available, `5` blind A/B review pairs, a generated `reports/output_review_decisions.json` template, `0 / 5` reviewer decisions pending, `0` answer keys revealed, and `5` pending answers hidden |
| Runtime Conformance | `5 / 5` targets passing |
| Target Compiler | `5 / 5` compiled target contracts generated for OpenAI, Claude, generic, Agent Skills compatible, and VS Code / Copilot outputs, including target permission contracts and target-native behavior contracts |
| Trust | `0` secret findings, `1` pinned dependency file, `69` declared internal modules, `3 / 3` network-capable scripts covered by bounded host policy, `86 / 86` CLI help smoke checks passing across `155` scripts, source-contract hash scope explicit |
| Permission Governance | `3 / 3` required high-permission capabilities approved, `0` missing, `0` invalid, `0` expired |
| Runtime Permission Probes | `4 / 4` target adapters probed, `0` native-enforcement adapters, `4` explicit metadata fallbacks, `4` residual risks retained for reviewer visibility |
| Skill Atlas | `12` scanned skills, `1` actionable root skill, `1` telemetry report, `0` actionable route collisions, `0` actionable owner gaps, `0` actionable stale skills, `0` actionable drift signals, `24` scoped non-actionable issue signals retained for visibility |
| Registry Audit | package metadata generated with version, owner, license, source checksum, archive checksum, Skill IR provenance, and compatibility matrix |
| Package Verification | `4 / 4` target adapters present, archive verified, `580` zip entries, `0` nested SKILL.md entries, `0` failures, `0` warnings |
| Install Simulation | archive with `580` entries extracted into a local verification root, `0` nested SKILL.md entries, entrypoint/manifest/interface loaded, reports present, `4` adapters readable, `12` installer permission checks enforced, `0` permission failures, `0` failures, `0` warnings |
| Local Install Sync Preflight | `make sync-local-install` and `make sync-active-install` rebuild the package first, then sync only after install simulation passes with `12` enforced installer permission checks and `0` permission failures |
| Upgrade Check | current package declares `minor` over the 1.0.0 baseline, recommended bump is `minor`, and release notes include added targets plus checksum changes |
| Adoption Drift | `1` metadata-only review event, `1` adoption sample, adoption `100`, risk band `low`; optional `yao.py` CLI capture, external client `telemetry-emit`, `5` `telemetry-hooks` recipes, Browser/Chrome native messaging host, and validated external JSONL import are available but off by default for reproducible release evidence; raw `reports/telemetry_events.jsonl` is gitignored and blocked from zip packages |
| Review Waivers | ledger generated; current release has `2` warning gates that still need reviewer decision or a time-bounded waiver; blockers remain non-waivable in v0, and world-class evidence gaps must be closed with accepted evidence rather than waived as completed |
| Review Annotations | ledger generated; current release has `0` reviewer annotations and `0` open annotation blockers |
| Review Studio | decision `review`, world-class score `91`, `16` gates, `0` blockers, `3` warnings, `3` review actions, `0` open annotation blockers |
| Skill OS 2.0 Audit | `15` audited areas, with local foundation evidence separated from human-required and external-required gaps |
| World-Class Evidence Plan | `4` remaining evidence tasks: `1` human-required and `3` external-required, all with runbooks, success checks, and privacy contracts |
| World-Class Evidence Ledger | `4` evidence entries remain pending: `1` human-required and `3` external-required; anti-overclaim guards block planned work, metadata fallbacks, pending review, and local command runners from counting as completion |
| Benchmark Reproducibility | local reproducibility ready with `25` required artifacts, `0` missing artifacts, `23` reproduction commands, and `3` disclosed failure cases; human review, native permission enforcement, native telemetry, and provider ledger approval remain explicit limitations |
| IR-first Packaging | `openai`, `claude`, `generic`, and `vscode` adapters include compiler contracts, permission contracts, target-native behavior contracts, IR provenance, semantic parity checks, and install-scope notes where applicable |
| Context Budget | initial load `987/1000`; deferred `530167/120000`; resource governance governed |
| CI | `make ci-test` target count is `83` after adding the dedicated Operator UX verifier |

## Next Highest-Leverage Moves

1. Deepen target-native behavior contracts into provider-native execution and provider-native installer integrations.
2. Add native client or installer runtime enforcement for approved high-permission capabilities.
3. Complete independent provider ledger review, then record the current blind A/B decisions before claiming fully ready status.
4. Add real reviewer annotation records during the next human review pass.
5. Install a real Browser/Chrome extension or provider client against `telemetry_native_host.py` and record production metadata events.
