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Defame1297 ec54a8100a feat(kyberforge): add pc-author and pc-run pre-commit skills

## Why
Pre-commit config management was entirely manual — no skill existed to
help create, modify, or validate `.pre-commit-config.yaml`, or to run,
install, and maintain the pre-commit setup. These two skills close that
gap with clear scope separation: authoring vs. execution.

## Implementation Notes
- `pc-author` owns `.pre-commit-config.yaml` only (no hook publishing,
  no install). Runs `pre-commit validate-config` after every write.
  Shallow file-extension scan drives proactive hook recommendations;
  rev staleness is flagged against `references/hooks-by-language.md`
  rather than hardcoded versions. Remove path reverts on failure.
- `pc-run` owns install, run, autoupdate, gc, and clean. Defaults to
  `--all-files`. Install warns about existing `.git/hooks/` files being
  overwritten by `-f`. Clean requires HITL confirmation. Failure
  interpretation delegates to `references/failure-patterns.md`.
- Provenance wired to `plugins/kyberforge/docs/research/docs/pre-commit/`.
- Both skills resolve via the existing `"skills/"` glob in `plugin.json`.

## Impact
Two new slash commands available after `claude plugin install kyberforge@holocron`:
`/pc-author` and `/pc-run`.

Refs: #12

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01P87CiC58Ru2PPWYTeXtjHT

2026-06-27 22:32:54 +00:00

2.8 KiB

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source_keys

context7-pre-commit-com

pre-commit-com

Hook Failure Patterns

Common hook failure causes and concrete next-step suggestions.

Hook modified files — commit blocked

Cause: A fixer hook (e.g. trailing-whitespace, end-of-file-fixer, pretty-format-json) modified staged files. The commit is blocked because the staged version is now stale.

Fix: Re-stage and recommit.

git add -u
git commit -m "same message"

Secret detected (gitleaks)

Cause: gitleaks found a high-entropy string or known secret pattern in a staged file.

Suggestions:

If it's a false positive: add a # gitleaks:allow inline comment, or add the path to .gitleaksignore.
If it's a real secret: remove it from the file, rotate the credential, then commit.

Shellcheck warning

Cause: shellcheck found a shell script issue. The output includes the file path, line number, and SC-code.

Fix: Look up the SC-code on shellcheck.net or pass --explain SCxxxx to shellcheck for a detailed explanation. The most common fixes:

SC2086 (unquoted variable): wrap in double quotes.
SC2046 (unquoted command substitution): wrap in double quotes.
SC2181 (check exit code of $?): use if command; then directly.

pretty-format-json fails but doesn't fix

Cause: pretty-format-json requires args: [--autofix] to modify files. Without it, the hook only fails.

Fix: The user (or pc-author) must add args: [--autofix] to the hook override in .pre-commit-config.yaml.

Environment stale or broken

Cause: A hook's cached environment is corrupted or out of date.

Fix:

pre-commit clean          # wipe all environments
pre-commit install-hooks  # rebuild everything

Or less destructively:

pre-commit gc             # remove only unused environments

Hooks don't run on `git commit`

Cause: pre-commit install was never run in this clone.

Fix: pre-commit install. Git hooks are per-clone — they are not committed to the repo.

Hook runs but matches wrong files (or no files)

Cause: The files: pattern uses re.search() not full-string match. A pattern that looks correct may match unexpectedly.

Diagnosis: identify-cli <filename> shows the type tags for a file. Verify types: filters against these.

stages mismatch — hook never fires

Cause: Hook is defined for a stage (e.g. pre-push) but pre-commit install was not run with -t pre-push.

Fix:

pre-commit install -t pre-commit -t pre-push -t commit-msg

Or add default_install_hook_types to .pre-commit-config.yaml and re-run pre-commit install.

`validate-config` schema error

Common causes:

Missing id under a hook block
Missing rev under a non-local repo block
repo: local hook missing language or entry
Indentation error (valid YAML but invalid pre-commit schema)

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