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OutlineDriven (@outlinedriven-odin-gemini-cli-extension) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Setup Pre Commit by outlinedriven-odin-gemini-cli-extension

Name: Setup Pre Commit
Rating: 4.2 (5 reviews)
Author: OutlineDriven

Setup Pre Commit

Install git pre-commit hooks via the project's hook tool of choice — Husky+lint-staged (npm/yarn/pnpm/bun), pre-commit framework (Python), lefthook (Go), cargo-husky (Rust), pre-commit (OCaml). Use when user wants commit-time formatting, linting, type-checking, or test gates. Detects ecosystem first; recommends the right tool.

OutlineDriven Updated Sep 10, 2026

File contents

Detect the ecosystem, pick the right hook tool, install with formatter + type-check + test gates.

Detection (run first)

Dispatch Explore agent — or for a single-language repo, probe directly via fd for lockfile / manifest signature. Map the first manifest hit to an ecosystem. Multi-language repos: ask the maintainer which surface to gate, or apply both.

Ecosystem → hook tool

Ecosystem	Hook tool	Install command
npm / yarn / pnpm / bun	husky + lint-staged	`<pm> add -D husky lint-staged prettier && npx husky init`
Python (poetry/pip)	pre-commit (framework)	`pipx install pre-commit && pre-commit install`
Go	lefthook (or pre-commit)	`go install github.com/evilmartians/lefthook@latest && lefthook install`
Rust (cargo)	cargo-husky (or pre-commit)	add `cargo-husky` as `[dev-dependencies]`; runs on `cargo test`
OCaml (dune)	pre-commit + dune hooks	`pipx install pre-commit && pre-commit install`

Per-ecosystem hook contents

Node ecosystems — write .husky/pre-commit:

npx lint-staged
<pm> run typecheck
<pm> run test

Drop missing scripts and tell the user. Write .lintstagedrc:

{ "*": "prettier --ignore-unknown --write" }

Formatter policy is out of scope for this skill. Do NOT auto-create .prettierrc. If no Prettier config exists, surface that fact and ask the user.

Python — write .pre-commit-config.yaml:

repos:
  - repo: https://github.com/astral-sh/ruff-pre-commit
    rev: v0.6.0
    hooks:
      - id: ruff
      - id: ruff-format
  - repo: local
    hooks:
      - id: pyright
        name: pyright
        entry: pyright
        language: system
        pass_filenames: false
      - id: pytest
        name: pytest
        entry: pytest -q
        language: system
        pass_filenames: false
        stages: [pre-commit]

Go — write lefthook.yml:

pre-commit:
  parallel: true
  commands:
    fmt:    { run: gofmt -l -w {staged_files} }
    vet:    { run: go vet ./... }
    test:   { run: go test -race ./... }

Rust — Cargo.toml:

[dev-dependencies]
cargo-husky = { version = "1", default-features = false, features = ["precommit-hook", "run-cargo-test", "run-cargo-clippy", "run-cargo-fmt"] }

OCaml — .pre-commit-config.yaml:

repos:
  - repo: local
    hooks:
      - id: dune-fmt
        name: dune fmt
        entry: dune fmt
        language: system
        pass_filenames: false
      - id: dune-build
        name: dune build
        entry: dune build
        language: system
        pass_filenames: false
      - id: dune-test
        name: dune runtest
        entry: dune runtest
        language: system
        pass_filenames: false

Verify

fd -d 2 -t f '\.husky|\.pre-commit-config\.yaml|lefthook\.yml' shows the expected file.
The hook is executable.
Run a no-op commit (git commit --allow-empty -m "chore: verify hooks") — every gate must run and pass.

Commit

chore: install pre-commit hooks (<tool>). The commit itself trips the new hook — first-class smoke test.

---name: setup-pre-commitdescription: Install git pre-commit hooks via the project's hook tool of choice — Husky+lint-staged (npm/yarn/pnpm/bun), pre-commit framework (Python), lefthook (Go), cargo-husky (Rust), pre-commit (OCaml). Use when user wants commit-time formatting, linting, type-checking, or test gates. Detects ecosystem first; recommends the right tool.---Detect the ecosystem, pick the right hook tool, install with formatter + type-check + test gates.## Detection (run first)Dispatch Explore agent — or for a single-language repo, probe directly via `fd` for lockfile / manifest signature. Map the first manifest hit to an ecosystem. Multi-language repos: ask the maintainer which surface to gate, or apply both.## Ecosystem → hook tool| Ecosystem | Hook tool | Install command || -------------------- | -------------------------- | ---------------------------------------------------------------- || npm / yarn / pnpm / bun | husky + lint-staged | `<pm> add -D husky lint-staged prettier && npx husky init` || Python (poetry/pip) | pre-commit (framework) | `pipx install pre-commit && pre-commit install` || Go | lefthook (or pre-commit) | `go install github.com/evilmartians/lefthook@latest && lefthook install` || Rust (cargo) | cargo-husky (or pre-commit)| add `cargo-husky` as `[dev-dependencies]`; runs on `cargo test` || OCaml (dune) | pre-commit + dune hooks | `pipx install pre-commit && pre-commit install` |## Per-ecosystem hook contents**Node ecosystems** — write `.husky/pre-commit`:```npx lint-staged<pm> run typecheck<pm> run test```Drop missing scripts and tell the user. Write `.lintstagedrc`:```json{ "*": "prettier --ignore-unknown --write" }```Formatter policy is **out of scope** for this skill. Do NOT auto-create `.prettierrc`. If no Prettier config exists, surface that fact and ask the user.**Python** — write `.pre-commit-config.yaml`:```yamlrepos: - repo: https://github.com/astral-sh/ruff-pre-commit rev: v0.6.0 hooks: - id: ruff - id: ruff-format - repo: local hooks: - id: pyright name: pyright entry: pyright language: system pass_filenames: false - id: pytest name: pytest entry: pytest -q language: system pass_filenames: false stages: [pre-commit]```**Go** — write `lefthook.yml`:```yamlpre-commit: parallel: true commands: fmt: { run: gofmt -l -w {staged_files} } vet: { run: go vet ./... } test: { run: go test -race ./... }```**Rust** — `Cargo.toml`:```toml[dev-dependencies]cargo-husky = { version = "1", default-features = false, features = ["precommit-hook", "run-cargo-test", "run-cargo-clippy", "run-cargo-fmt"] }```**OCaml** — `.pre-commit-config.yaml`:```yamlrepos: - repo: local hooks: - id: dune-fmt name: dune fmt entry: dune fmt language: system pass_filenames: false - id: dune-build name: dune build entry: dune build language: system pass_filenames: false - id: dune-test name: dune runtest entry: dune runtest language: system pass_filenames: false```## Verify- `fd -d 2 -t f '\.husky|\.pre-commit-config\.yaml|lefthook\.yml'` shows the expected file.- The hook is executable.- Run a no-op commit (`git commit --allow-empty -m "chore: verify hooks"`) — every gate must run and pass.## Commit`chore: install pre-commit hooks (<tool>)`. The commit itself trips the new hook — first-class smoke test.

Frequently asked questions