LeMetaSkill v1.1.0：跨 runtime（ZCode/Claude Code/Codex）的 Agent Skill 创建与迭代工坊
- SKILL.md 双工作流（创建/迭代）+ 两道门（验料/通用化）+ 三档位 - 7 篇方法论 references + 3 个纯标准库脚本（scaffold/validate/trigger_eval） - 自身触发用例 16 条 + 先例研究/创建/迭代证据报告 - 方法论吸收自 qiaomu-meta-skill 与 luban-skill，取舍见 reports/prior-art.md
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Leroy
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#!/usr/bin/env python3
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"""LeMetaSkill 结构体检：检查一个 skill 目录是否满足基本契约。
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只依赖标准库。检查项（FAIL 阻断 / WARN 提醒）：
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- SKILL.md 存在、frontmatter 可解析 [FAIL]
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- name 存在、kebab-case、1-64 字符、与目录名一致 [FAIL]
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- description 存在且够长（>=30 字符） [WARN]
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- description 含负触发信号（"不要用于"类表述） [WARN]
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- 正文非空、<=500 行 [WARN]
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- 正文中的本地 .md 链接可达（无悬空引用） [FAIL]
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- evals/*.json 可解析 [FAIL]
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- 无密钥/私有绝对路径 [WARN]
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- 顶层目录都是已知用途 [WARN]
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用法: python3 validate_skill.py <skill目录>
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"""
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from __future__ import annotations
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import argparse
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import json
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import re
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import sys
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from pathlib import Path
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KNOWN_DIRS = {"references", "scripts", "evals", "assets", "reports", "examples", "tests"}
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MAX_BODY_LINES = 500
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SECRET_PATTERNS = [
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r"AKIA[0-9A-Z]{16}",
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r"sk-[A-Za-z0-9]{20,}",
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r"(?:api[_-]?key|token|secret|password)\s*[:=]\s*['\"]?[A-Za-z0-9_\-]{16,}",
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r"ghp_[A-Za-z0-9]{36}",
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]
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PRIVATE_PATH = "/Users" + "/[A-Za-z0-9_.\\-]+/" # 拼接写法：避免扫描器匹配到自身源码
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NEGATIVE_HINT = re.compile(r"不要|不该|不用于|排除|exclude|not for|don'?t use|do not use", re.I)
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MD_LINK = re.compile(r"\[[^\]]*\]\(([^)\s]+)\)")
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def parse_frontmatter(text: str) -> tuple[dict[str, str], int]:
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"""解析简易 YAML frontmatter（key: value 与 key: | 块），返回 (字段, 正文起始行号)。"""
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lines = text.splitlines()
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if not lines or lines[0].strip() != "---":
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return {}, 0
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fields: dict[str, str] = {}
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key = ""
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for i in range(1, min(len(lines), 60)):
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line = lines[i]
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if line.strip() == "---":
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return fields, i + 1
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m = re.match(r"^([A-Za-z_][\w-]*):\s*(.*)$", line)
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if m:
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key = m.group(1)
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fields[key] = m.group(2).strip().strip("'\"")
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elif line.startswith((" ", "\t")) and key:
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fields[key] = (fields[key] + " " + line.strip().strip("'\"")).strip()
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return {}, 0 # 没有闭合的 ---
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def main() -> int:
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ap = argparse.ArgumentParser(description="skill 结构体检")
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ap.add_argument("skill_dir", type=Path)
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args = ap.parse_args()
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root: Path = args.skill_dir.resolve()
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if not root.is_dir():
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print(f"FAIL 目录不存在: {root}")
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return 1
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n_pass = n_warn = n_fail = 0
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def ok(msg: str) -> None:
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nonlocal n_pass
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n_pass += 1
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print(f"PASS {msg}")
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def warn(msg: str) -> None:
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nonlocal n_warn
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n_warn += 1
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print(f"WARN {msg}")
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def fail(msg: str) -> None:
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nonlocal n_fail
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n_fail += 1
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print(f"FAIL {msg}")
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skill_md = root / "SKILL.md"
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if not skill_md.is_file():
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fail("SKILL.md 不存在")
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print(f"\n--- Summary --- PASS:{n_pass} WARN:{n_warn} FAIL:{n_fail}")
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return 1
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ok("SKILL.md 存在")
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text = skill_md.read_text(encoding="utf-8")
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fields, body_start = parse_frontmatter(text)
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if not fields:
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fail("frontmatter 缺失或未闭合（需要 --- 包裹的头）")
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else:
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ok("frontmatter 可解析")
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name = fields.get("name", "")
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if not name:
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fail("缺少 name 字段")
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else:
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if not re.fullmatch(r"[a-z0-9]+(-[a-z0-9]+)*", name):
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fail(f"name 不是 kebab-case: {name!r}")
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elif not 1 <= len(name) <= 64:
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fail(f"name 长度超出 1-64: {len(name)}")
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else:
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ok(f"name 合法: {name}")
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if root.name != name:
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fail(f"name 与目录名不一致: {name!r} vs {root.name!r}")
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else:
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ok("name 与目录名一致")
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desc = fields.get("description", "")
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if not desc:
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fail("缺少 description 字段（触发信号，必填）")
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else:
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if len(desc) < 30:
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warn(f"description 太短（{len(desc)} 字符），盖不住触发场景")
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else:
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ok(f"description 长度充分（{len(desc)} 字符）")
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if NEGATIVE_HINT.search(desc):
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ok("description 含负触发信号")
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else:
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warn("description 缺负触发（\"不要用于…\"），边界请求会犹豫")
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body = "\n".join(text.splitlines()[body_start:]).strip()
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if not body:
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fail("正文为空")
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else:
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n_lines = len(body.splitlines())
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if n_lines > MAX_BODY_LINES:
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warn(f"正文 {n_lines} 行，超过 {MAX_BODY_LINES} 行预算——考虑拆进 references/")
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else:
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ok(f"正文 {n_lines} 行，在预算内")
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# 悬空引用
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dangling = []
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for target in MD_LINK.findall(body):
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if target.startswith(("http://", "https://", "mailto:", "#")):
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continue
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if not (root / target).exists():
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dangling.append(target)
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if dangling:
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fail(f"正文引用的本地文件不存在: {', '.join(sorted(set(dangling)))}")
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elif MD_LINK.search(body):
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ok("正文本地链接全部可达")
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# evals JSON
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evals_dir = root / "evals"
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if evals_dir.is_dir():
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for j in sorted(evals_dir.glob("*.json")):
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try:
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json.loads(j.read_text(encoding="utf-8"))
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ok(f"{j.relative_to(root)} 可解析")
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except json.JSONDecodeError as e:
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fail(f"{j.relative_to(root)} JSON 解析失败: {e}")
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# 密钥与私有路径（只读文本类文件）
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for p in sorted(root.rglob("*")):
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if not p.is_file() or p.suffix not in {".md", ".json", ".py", ".sh", ".txt", ".yaml", ".yml"}:
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continue
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try:
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content = p.read_text(encoding="utf-8")
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except (UnicodeDecodeError, PermissionError):
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continue
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rel = p.relative_to(root)
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for pat in SECRET_PATTERNS:
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if re.search(pat, content):
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warn(f"{rel} 疑似包含密钥/令牌（模式 {pat}）")
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if rel.name != "SKILL.md" and re.search(PRIVATE_PATH, content):
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warn(f"{rel} 含私有绝对路径（/Users/…）")
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# 顶层结构
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unknown = [d.name for d in root.iterdir() if d.is_dir() and d.name not in KNOWN_DIRS]
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if unknown:
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warn(f"未知顶层目录（确认其用途，或移除）: {', '.join(unknown)}")
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present = [d.name for d in root.iterdir() if d.is_dir() and d.name in KNOWN_DIRS]
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if present:
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ok(f"标准目录: {', '.join(sorted(present))}")
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print(f"\n--- Summary --- PASS:{n_pass} WARN:{n_warn} FAIL:{n_fail}")
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if n_fail:
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print("结论：未过体检，先修 FAIL 再交付。")
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return 1
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if n_warn:
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print("结论：可交付，WARN 项酌情处理。")
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else:
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print("结论：全绿。")
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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