yaojingang
351 lines
14 KiB
Python
351 lines
14 KiB
Python
#!/usr/bin/env python3
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import argparse
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import json
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import shutil
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import zipfile
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from pathlib import Path
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import yaml
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def read_simple_yaml(path: Path) -> dict:
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return yaml.safe_load(path.read_text(encoding="utf-8")) or {}
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def read_frontmatter(skill_md: Path) -> dict:
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if not skill_md.exists():
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raise FileNotFoundError(f"Missing required file: {skill_md}")
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text = skill_md.read_text(encoding="utf-8")
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if not text.startswith("---"):
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return {}
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parts = text.split("---", 2)
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if len(parts) < 3:
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return {}
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return yaml.safe_load(parts[1]) or {}
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def read_interface(skill_dir: Path) -> dict:
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path = skill_dir / "agents" / "interface.yaml"
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if not path.exists():
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return {}
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raw = read_simple_yaml(path)
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return raw
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def require_fields(payload: dict, fields: list[str], label: str) -> None:
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missing = [field for field in fields if not payload.get(field)]
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if missing:
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raise ValueError(f"Missing required {label} fields: {', '.join(missing)}")
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def require_target_degradation(
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degradation: dict,
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targets: list[str],
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) -> None:
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missing = [target for target in targets if not degradation.get(target)]
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if missing:
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raise ValueError(f"Missing degradation entries for targets: {', '.join(missing)}")
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def build_manifest(skill_dir: Path, platform: str) -> dict:
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frontmatter = read_frontmatter(skill_dir / "SKILL.md")
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interface_doc = read_interface(skill_dir)
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interface = interface_doc.get("interface", {})
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compatibility = interface_doc.get("compatibility", {})
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activation = compatibility.get("activation", {})
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execution = compatibility.get("execution", {})
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trust = compatibility.get("trust", {})
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degradation = compatibility.get("degradation", {})
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require_fields(frontmatter, ["name", "description"], "frontmatter")
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require_fields(interface, ["display_name", "short_description", "default_prompt"], "interface")
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require_fields(compatibility, ["canonical_format", "adapter_targets"], "compatibility")
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require_fields(activation, ["mode"], "compatibility.activation")
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require_fields(execution, ["context", "shell"], "compatibility.execution")
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require_fields(
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trust,
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["source_tier", "remote_inline_execution", "remote_metadata_policy"],
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"compatibility.trust",
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)
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require_target_degradation(degradation, compatibility.get("adapter_targets", []))
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return {
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"name": frontmatter.get("name", skill_dir.name),
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"description": frontmatter.get("description", ""),
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"version": frontmatter.get("version", "1.0.0"),
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"platform": platform,
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"skill_root": skill_dir.name,
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"display_name": interface.get("display_name", skill_dir.name),
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"short_description": interface.get("short_description", ""),
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"default_prompt": interface.get("default_prompt", ""),
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"canonical_metadata": "agents/interface.yaml",
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"canonical_format": compatibility.get("canonical_format", "agent-skills"),
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"adapter_targets": compatibility.get("adapter_targets", []),
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"activation_mode": activation.get("mode", "manual"),
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"activation_paths": activation.get("paths", []),
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"execution_context": execution.get("context", "inline"),
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"shell": execution.get("shell", "bash"),
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"trust_level": trust.get("source_tier", "local"),
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"remote_inline_execution": trust.get("remote_inline_execution", "forbid"),
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"remote_metadata_policy": trust.get("remote_metadata_policy", "allow-metadata-only"),
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"degradation_strategy": degradation.get(platform, "neutral-source"),
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"portability_profile": {
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"activation_mode": activation.get("mode", "manual"),
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"activation_paths": activation.get("paths", []),
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"execution_context": execution.get("context", "inline"),
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"shell": execution.get("shell", "bash"),
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"source_tier": trust.get("source_tier", "local"),
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"remote_inline_execution": trust.get("remote_inline_execution", "forbid"),
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"remote_metadata_policy": trust.get("remote_metadata_policy", "allow-metadata-only"),
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"degradation_strategy": degradation.get(platform, "neutral-source"),
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},
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}
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PLATFORM_CONTRACTS = {
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"openai": {
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"required_fields": [
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"name",
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"description",
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"version",
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"display_name",
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"short_description",
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"default_prompt",
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"canonical_metadata",
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"canonical_format",
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"activation_mode",
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"execution_context",
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"shell",
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"trust_level",
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"remote_inline_execution",
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"degradation_strategy",
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"portability_profile",
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],
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"required_files": ["targets/openai/adapter.json", "targets/openai/agents/openai.yaml"],
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"field_mapping": {
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"display_name": "interface.display_name",
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"short_description": "interface.short_description",
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"default_prompt": "interface.default_prompt",
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"execution_context": "compatibility.execution.context",
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"shell": "compatibility.execution.shell",
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},
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},
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"claude": {
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"required_fields": [
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"name",
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"description",
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"version",
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"display_name",
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"short_description",
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"default_prompt",
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"canonical_metadata",
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"canonical_format",
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"activation_mode",
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"execution_context",
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"shell",
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"trust_level",
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"remote_inline_execution",
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"degradation_strategy",
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"portability_profile",
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],
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"required_files": ["targets/claude/adapter.json", "targets/claude/README.md"],
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"field_mapping": {
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"display_name": "adapter.display_name",
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"short_description": "adapter.short_description",
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"default_prompt": "adapter.default_prompt",
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"execution_context": "compatibility.execution.context",
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"shell": "compatibility.execution.shell",
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},
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},
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"generic": {
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"required_fields": [
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"name",
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"description",
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"version",
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"display_name",
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"short_description",
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"default_prompt",
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"canonical_metadata",
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"canonical_format",
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"activation_mode",
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"execution_context",
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"shell",
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"trust_level",
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"remote_inline_execution",
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"degradation_strategy",
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"portability_profile",
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],
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"required_files": ["targets/generic/adapter.json"],
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"field_mapping": {
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"display_name": "adapter.display_name",
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"short_description": "adapter.short_description",
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"default_prompt": "adapter.default_prompt",
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"execution_context": "compatibility.execution.context",
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"shell": "compatibility.execution.shell",
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},
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},
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}
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def write_yaml_like(path: Path, payload: dict) -> None:
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interface = payload.get("interface", {})
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compatibility = payload.get("compatibility", {})
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lines = ["interface:"]
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for key in ("display_name", "short_description", "default_prompt"):
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value = interface.get(key, "")
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lines.append(f' {key}: "{value}"')
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lines.extend(
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[
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"compatibility:",
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f' canonical_format: "{compatibility.get("canonical_format", "")}"',
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f' activation_mode: "{compatibility.get("activation_mode", "")}"',
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f' execution_context: "{compatibility.get("execution_context", "")}"',
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f' shell: "{compatibility.get("shell", "")}"',
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f' trust_level: "{compatibility.get("trust_level", "")}"',
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f' remote_inline_execution: "{compatibility.get("remote_inline_execution", "")}"',
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f' degradation_strategy: "{compatibility.get("degradation_strategy", "")}"',
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]
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)
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path.write_text("\n".join(lines) + "\n", encoding="utf-8")
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def write_adapter(skill_dir: Path, out_dir: Path, platform: str) -> Path:
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target_dir = out_dir / "targets" / platform
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target_dir.mkdir(parents=True, exist_ok=True)
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if platform not in PLATFORM_CONTRACTS:
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raise ValueError(f"Unsupported platform: {platform}")
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payload = build_manifest(skill_dir, platform)
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if platform == "openai":
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meta_dir = target_dir / "agents"
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meta_dir.mkdir(parents=True, exist_ok=True)
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write_yaml_like(
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meta_dir / "openai.yaml",
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{
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"interface": {
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"display_name": payload["display_name"],
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"short_description": payload["short_description"],
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"default_prompt": payload["default_prompt"],
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},
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"compatibility": {
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"canonical_format": payload["canonical_format"],
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"activation_mode": payload["activation_mode"],
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"execution_context": payload["execution_context"],
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"shell": payload["shell"],
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"trust_level": payload["trust_level"],
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"remote_inline_execution": payload["remote_inline_execution"],
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"degradation_strategy": payload["degradation_strategy"],
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},
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},
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)
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payload["install_hint"] = f"Use the packaged skill and include targets/openai/agents/openai.yaml when the client expects OpenAI-style interface metadata."
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elif platform == "claude":
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notes = target_dir / "README.md"
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notes.write_text(
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f"# Claude-Compatible Package\n\nUse `{skill_dir.name}` with its neutral source files. This target does not require vendor metadata by default.\n",
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encoding="utf-8",
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)
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payload["install_hint"] = f"Use the packaged skill directly; this target relies on SKILL.md and optional neutral metadata."
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else:
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payload["install_hint"] = f"Use {skill_dir.name} as an Agent Skills compatible package."
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path = target_dir / "adapter.json"
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payload["contract"] = PLATFORM_CONTRACTS.get(platform, PLATFORM_CONTRACTS["generic"])
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path.write_text(json.dumps(payload, ensure_ascii=False, indent=2), encoding="utf-8")
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return path
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def make_zip(skill_dir: Path, out_dir: Path) -> Path:
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zip_path = out_dir / f"{skill_dir.name}.zip"
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with zipfile.ZipFile(zip_path, "w", compression=zipfile.ZIP_DEFLATED) as zf:
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for path in skill_dir.rglob("*"):
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if path.is_file():
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zf.write(path, arcname=str(path.relative_to(skill_dir.parent)))
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return zip_path
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def copy_manifest(skill_dir: Path, out_dir: Path) -> Path:
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manifest_path = out_dir / "manifest.json"
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manifest_path.write_text(
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json.dumps(build_manifest(skill_dir, "generic"), ensure_ascii=False, indent=2),
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encoding="utf-8",
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)
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return manifest_path
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def load_expectations(path: Path | None) -> dict:
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if path is None:
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return {}
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return json.loads(path.read_text(encoding="utf-8"))
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def validate_exports(out_dir: Path, expectations: dict) -> dict:
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failures = []
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required_targets = expectations.get("required_targets", [])
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required_fields = expectations.get("required_fields", [])
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required_by_target = {
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"openai": expectations.get("openai_required_files", []),
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"claude": expectations.get("claude_required_files", []),
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"generic": expectations.get("generic_required_files", []),
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}
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for target in required_targets:
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adapter_path = out_dir / "targets" / target / "adapter.json"
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if not adapter_path.exists():
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failures.append(f"missing adapter for target: {target}")
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continue
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payload = json.loads(adapter_path.read_text(encoding="utf-8"))
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for field in required_fields:
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if field not in payload:
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failures.append(f"missing field '{field}' in {adapter_path.relative_to(out_dir)}")
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for rel in required_by_target.get(target, []):
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if not (out_dir / rel).exists():
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failures.append(f"missing file: {rel}")
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return {"ok": not failures, "failures": failures}
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def main() -> None:
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parser = argparse.ArgumentParser(description="Generate lightweight cross-platform packaging artifacts.")
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parser.add_argument("skill_dir", help="Path to the skill directory")
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parser.add_argument("--platform", action="append", default=[], help="Target platform: openai, claude, generic")
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parser.add_argument("--output-dir", default="dist", help="Output directory")
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parser.add_argument("--expectations", help="JSON file describing packaging expectations")
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parser.add_argument("--zip", action="store_true", help="Create a zip package")
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args = parser.parse_args()
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skill_dir = Path(args.skill_dir).resolve()
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out_dir = Path(args.output_dir).resolve()
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if out_dir.exists():
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shutil.rmtree(out_dir)
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out_dir.mkdir(parents=True)
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generated = []
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failures = []
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try:
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manifest = copy_manifest(skill_dir, out_dir)
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generated.append(str(manifest))
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for platform in (args.platform or ["generic"]):
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generated.append(str(write_adapter(skill_dir, out_dir, platform)))
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if args.zip:
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generated.append(str(make_zip(skill_dir, out_dir)))
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except (FileNotFoundError, ValueError, yaml.YAMLError) as exc:
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failures.append(str(exc))
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expectations = load_expectations(Path(args.expectations).resolve()) if args.expectations else {}
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validation = validate_exports(out_dir, expectations) if expectations and not failures else None
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report = {
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"output_dir": str(out_dir),
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"generated": generated,
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"contracts": PLATFORM_CONTRACTS,
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"validation": validation,
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"failure_handling": {
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"missing_required_file": "exit with code 2 when expectations are provided and validation fails",
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"missing_required_field": "exit with code 2 when expectations are provided and validation fails",
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"invalid_yaml_or_frontmatter": "exit with code 2 when parsing fails",
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"unsupported_platform": "exit with code 2 when the platform is not defined in PLATFORM_CONTRACTS",
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},
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"failures": failures,
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}
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print(json.dumps(report, ensure_ascii=False, indent=2))
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if failures or (validation and not validation["ok"]):
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raise SystemExit(2)
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if __name__ == "__main__":
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main()
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