The skill lived at the repository root, which the CLI reads as a single-skill repository and which makes a second skill impossible to add. SKILL.md, references/ and scripts/ move under skills/apk-reverse/ with git mv, so history follows and no in-skill reference needs changing (they are relative to SKILL.md). check_repo.py now discovers every skills/*/SKILL.md, validates frontmatter by parsing it instead of pattern-matching it, and requires the README to name skills through explicit skills/<name>/... paths. check_refs.py is new: it audits file.md section cross-references against the real headings in the target file. It found six dangling ones, all fixed here. SKILL.md: the description is now quoted. Unquoted, it contained a colon-space, which is invalid YAML, so the CLI skipped the skill and reported No skills found. Adds a Coverage section stating what is out of scope and what to do when nothing matches. toolchain.md: IDA is not GUI-only (idalib-mcp is a headless MCP server), plus a section on MCP servers as external dependencies and the deobfuscate-before-LLM boundary. README.md: install via npx skills add, the new layout, coverage and maintenance tools. Verified: check_repo.py and check_refs.py both clean, build_scripts.py audit 0 findings, npx skills add . --list reports apk-reverse, and an install into a scratch directory lands SKILL.md plus 28 references and 38 scripts.
272 lines
10 KiB
Python
272 lines
10 KiB
Python
#!/usr/bin/env python3
|
|
"""Pre-commit checks for this repository.
|
|
|
|
Assumed layout -- the one the `skills` CLI resolves:
|
|
|
|
README.md repository-level docs (root)
|
|
skills/<skill-name>/SKILL.md the skill itself
|
|
skills/<skill-name>/references/*.md loaded on demand
|
|
skills/<skill-name>/scripts/* run, not read
|
|
|
|
Every skill under `skills/` is discovered automatically (up to three levels;
|
|
a SKILL.md at a shallower level shadows anything nested below it, which is the
|
|
CLI's own rule), so adding a second skill requires no change to this script.
|
|
|
|
Per skill:
|
|
1. frontmatter exists, `name` matches the directory name, `description` <= 1024
|
|
2. every scripts/*.py parses and answers --help without a traceback
|
|
3. every `references/X.md` / `scripts/X.py` reference resolves inside that skill
|
|
4. every reference file is reachable from that skill's SKILL.md or the README
|
|
5. every script is mentioned somewhere in the docs
|
|
|
|
On the root README:
|
|
6. every path it names is an explicit `skills/<name>/...` path that exists
|
|
"""
|
|
import ast
|
|
import os
|
|
import re
|
|
import subprocess
|
|
import sys
|
|
|
|
try:
|
|
import yaml
|
|
except ImportError: # the skills CLI is the real authority; this is a local gate
|
|
yaml = None
|
|
|
|
ROOT = os.path.dirname(os.path.abspath(__file__))
|
|
SKILLS_DIR = os.path.join(ROOT, 'skills')
|
|
README = os.path.join(ROOT, 'README.md')
|
|
|
|
REF_RE = re.compile(r'`?(references/[A-Za-z0-9_\-]+\.md)')
|
|
SCRIPT_RE = re.compile(r'`?(scripts/[A-Za-z0-9_\-]+\.(?:py|js))')
|
|
NAMED_PATH_RE = re.compile(
|
|
r'skills/(?P<skill>[a-z0-9\-]+)/(?P<sub>references|scripts)/'
|
|
r'(?P<file>[A-Za-z0-9_\-]+\.(?:md|py|js))')
|
|
BARE_PATH_RE = re.compile(r'(?<![\w/])(?P<sub>references|scripts)/'
|
|
r'(?P<file>[A-Za-z0-9_\-]+\.(?:md|py|js))')
|
|
|
|
fail = []
|
|
|
|
|
|
def read(path):
|
|
with open(path, encoding='utf-8') as fh:
|
|
return fh.read()
|
|
|
|
|
|
def discover_skills():
|
|
"""Return [(name, skill_dir)] for every skills/<...>/SKILL.md."""
|
|
found = []
|
|
if not os.path.isdir(SKILLS_DIR):
|
|
return found
|
|
for dirpath, dirnames, filenames in os.walk(SKILLS_DIR):
|
|
dirnames[:] = sorted(d for d in dirnames if not d.startswith('.'))
|
|
rel = os.path.relpath(dirpath, SKILLS_DIR)
|
|
depth = 0 if rel == '.' else rel.count(os.sep) + 1
|
|
if depth > 3:
|
|
dirnames[:] = []
|
|
continue
|
|
if 'SKILL.md' in filenames:
|
|
found.append((rel.replace(os.sep, '/'), dirpath))
|
|
dirnames[:] = [] # shallower SKILL.md shadows what is below
|
|
return sorted(found)
|
|
|
|
|
|
NAME_RE = re.compile(r'^[a-z0-9]+(?:-[a-z0-9]+)*$')
|
|
|
|
|
|
def check_frontmatter(name, skill_dir):
|
|
"""Validate the frontmatter the way the CLI will, not merely its presence.
|
|
|
|
This has to be a real parse. Frontmatter that satisfies a regex can still be
|
|
rejected by a YAML parser -- an unquoted `description` containing ": " does
|
|
it, because the colon starts a nested mapping -- and the `skills` CLI then
|
|
reports "No skills found" and installs nothing at all.
|
|
"""
|
|
path = os.path.join(skill_dir, 'SKILL.md')
|
|
text = read(path)
|
|
m = re.match(r'^---\r?\n(.*?)\r?\n---\r?\n', text, re.S)
|
|
if not m:
|
|
fail.append('%s: no YAML frontmatter block' % path)
|
|
return
|
|
raw = m.group(1)
|
|
|
|
if yaml is None:
|
|
print(' WARN PyYAML is not installed, so the frontmatter was not parsed')
|
|
line = re.search(r'^description:(.*)$', raw, re.M)
|
|
if line:
|
|
value = line.group(1)
|
|
if value[:1] not in ('"', "'", '>', '|') and ': ' in value:
|
|
fail.append('%s: unquoted description contains ": ", which a YAML '
|
|
'parser rejects; quote the value' % path)
|
|
return
|
|
|
|
try:
|
|
data = yaml.safe_load(raw)
|
|
except yaml.YAMLError as exc:
|
|
detail = str(exc).splitlines()[0]
|
|
fail.append('%s: frontmatter is not valid YAML (%s); the skills CLI '
|
|
'skips a skill whose frontmatter will not parse'
|
|
% (path, detail))
|
|
return
|
|
if not isinstance(data, dict):
|
|
fail.append('%s: frontmatter is not a YAML mapping' % path)
|
|
return
|
|
|
|
got = data.get('name')
|
|
if not got:
|
|
fail.append('%s: frontmatter has no `name`' % path)
|
|
elif str(got) != name:
|
|
fail.append('%s: frontmatter name %r does not match directory %r'
|
|
% (path, got, name))
|
|
elif not NAME_RE.match(str(got)) or len(str(got)) > 64:
|
|
fail.append('%s: name %r violates the spec (lowercase alphanumerics and '
|
|
'single hyphens, max 64 chars)' % (path, got))
|
|
|
|
desc = data.get('description')
|
|
if not desc:
|
|
fail.append('%s: frontmatter has no `description`' % path)
|
|
else:
|
|
desc = str(desc)
|
|
if len(desc) > 1024:
|
|
fail.append('%s: description is %d chars (spec max 1024)'
|
|
% (path, len(desc)))
|
|
elif len(desc) < 40:
|
|
fail.append('%s: description is only %d chars, too short to tell an '
|
|
'agent when this skill applies' % (path, len(desc)))
|
|
|
|
|
|
def check_scripts(skill_dir):
|
|
scripts = os.path.join(skill_dir, 'scripts')
|
|
if not os.path.isdir(scripts):
|
|
return
|
|
for name in sorted(os.listdir(scripts)):
|
|
if not name.endswith('.py'):
|
|
continue
|
|
path = os.path.join(scripts, name)
|
|
try:
|
|
ast.parse(read(path))
|
|
except SyntaxError as exc:
|
|
fail.append('%s: syntax error %s' % (path, exc))
|
|
print(' FAIL %s' % name)
|
|
continue
|
|
run = subprocess.run([sys.executable, '-B', path, '--help'],
|
|
capture_output=True, text=True, timeout=60,
|
|
cwd=ROOT)
|
|
# A script may exit non-zero on --help under the "print usage, exit 2"
|
|
# convention. That is acceptable; a traceback is not.
|
|
crashed = 'Traceback (most recent call last)' in (run.stderr or '')
|
|
helped = bool((run.stdout or '').strip()) or bool(run.stderr)
|
|
ok = (not crashed) and helped
|
|
verdict = 'ok' if run.returncode == 0 and not crashed else \
|
|
('usage-ok rc=%d' % run.returncode if ok else
|
|
'CRASH rc=%d' % run.returncode)
|
|
print(' %-32s %s' % (name, verdict))
|
|
if not ok:
|
|
fail.append('%s --help crashed: %s' % (path, (run.stderr or '')[:300]))
|
|
|
|
|
|
def check_references(name, skill_dir, root_docs):
|
|
"""Resolve in-skill references, and confirm every file is reachable."""
|
|
ref_dir = os.path.join(skill_dir, 'references')
|
|
script_dir = os.path.join(skill_dir, 'scripts')
|
|
refs = set(os.listdir(ref_dir)) if os.path.isdir(ref_dir) else set()
|
|
scripts = set(os.listdir(script_dir)) if os.path.isdir(script_dir) else set()
|
|
|
|
# Documents whose relative paths are rooted at the skill directory.
|
|
own = [os.path.join(skill_dir, 'SKILL.md')]
|
|
own += [os.path.join(ref_dir, f) for f in sorted(refs) if f.endswith('.md')]
|
|
|
|
missing = []
|
|
for doc in own:
|
|
if not os.path.exists(doc):
|
|
continue
|
|
text = read(doc)
|
|
for m in REF_RE.finditer(text):
|
|
if m.group(1).split('/')[1] not in refs:
|
|
missing.append('%s -> %s' % (os.path.relpath(doc, ROOT), m.group(1)))
|
|
for m in SCRIPT_RE.finditer(text):
|
|
if m.group(1).split('/')[1] not in scripts:
|
|
missing.append('%s -> %s' % (os.path.relpath(doc, ROOT), m.group(1)))
|
|
if missing:
|
|
for x in sorted(set(missing)):
|
|
print(' MISSING %s' % x)
|
|
fail.extend(missing)
|
|
|
|
# Reachability: nothing may be orphaned from the skill entry point.
|
|
bodies = read(os.path.join(skill_dir, 'SKILL.md')) + root_docs
|
|
for f in sorted(refs):
|
|
if f.endswith('.md') and f not in bodies:
|
|
fail.append('%s: references/%s is not mentioned anywhere' % (name, f))
|
|
print(' UNLISTED references/%s' % f)
|
|
|
|
all_docs = bodies
|
|
for f in sorted(refs):
|
|
if f.endswith('.md'):
|
|
all_docs += read(os.path.join(ref_dir, f))
|
|
for s in sorted(scripts):
|
|
if s.endswith(('.py', '.js')) and s not in all_docs:
|
|
fail.append('%s: scripts/%s is undocumented' % (name, s))
|
|
print(' UNDOCUMENTED scripts/%s' % s)
|
|
|
|
|
|
def check_readme():
|
|
"""README paths must be explicit and must exist."""
|
|
text = read(README)
|
|
if not os.path.isdir(SKILLS_DIR):
|
|
fail.append('no skills/ directory at the repository root')
|
|
return
|
|
skills = {d for d, _ in discover_skills()}
|
|
named = set()
|
|
for m in NAMED_PATH_RE.finditer(text):
|
|
named.add(m.group(0))
|
|
skill, sub, fname = m.group('skill'), m.group('sub'), m.group('file')
|
|
if skill not in skills:
|
|
fail.append('README.md: names unknown skill %r' % skill)
|
|
print(' UNKNOWN SKILL skills/%s' % skill)
|
|
elif not os.path.exists(os.path.join(SKILLS_DIR, skill, sub, fname)):
|
|
fail.append('README.md: %s does not exist' % m.group(0))
|
|
print(' MISSING %s' % m.group(0))
|
|
# Bare relative paths are ambiguous once there is more than one skill, so the
|
|
# README must not use them at all.
|
|
stripped = NAMED_PATH_RE.sub('', text)
|
|
for m in BARE_PATH_RE.finditer(stripped):
|
|
fail.append('README.md: bare path %r should be skills/<name>/%s'
|
|
% (m.group(0), m.group(0)))
|
|
print(' BARE PATH %s' % m.group(0))
|
|
|
|
|
|
def main():
|
|
skills = discover_skills()
|
|
print('== skills discovered ==')
|
|
if not skills:
|
|
print(' none (expected at least skills/<name>/SKILL.md)')
|
|
for name, _ in skills:
|
|
print(' skills/%s' % name)
|
|
|
|
print('\n== frontmatter ==')
|
|
for name, skill_dir in skills:
|
|
check_frontmatter(name, skill_dir)
|
|
print(' %d checked' % len(skills))
|
|
|
|
root_docs = read(README)
|
|
for name, skill_dir in skills:
|
|
print('\n== %s: python syntax + --help ==' % name)
|
|
check_scripts(skill_dir)
|
|
print('\n== %s: reference and script paths resolve ==' % name)
|
|
before = len(fail)
|
|
check_references(name, skill_dir, root_docs)
|
|
if len(fail) == before:
|
|
print(' all referenced reference/script paths exist')
|
|
|
|
print('\n== README paths are explicit and exist ==')
|
|
check_readme()
|
|
|
|
print('\n== result: %d problem(s) ==' % len(fail))
|
|
for f in fail:
|
|
print(' - %s' % f)
|
|
return 1 if fail else 0
|
|
|
|
|
|
if __name__ == '__main__':
|
|
sys.exit(main())
|