Precommit Workflow Management

Pre-Commit Workflow Management Skill

This skill explains how to maintain, configure, and execute the intelligent pre-commit hook workflow across polyglot repositories.

1. Local Branch-First Development

[!IMPORTANT] CREATE A LOCAL BRANCH FIRST: Always start by creating a dedicated local branch from main:

git switch -c <developer-or-agent>/main/<feature-name>

Never make changes directly on main.

2. Pre-Commit Architecture

The pre-commit workflow typically lives in .githooks/pre-commit and is tracked directly in version control.

Staged Changes Detected (git diff --cached)
  │
  ├── Only Go files changed ───────► Run Go formatting, vet, tests, build
  ├── Only Python files changed ───► Run Pyright/Ruff, test suites
  ├── Only Frontend files changed ─► Run Biome/Linter, frontend build
  ├── Only Documentation changed ──► Fast-path bypass (<0.2s)
  └── Global / Config / Manual ────► Full monorepo validation gate

3. Key Features

1. Selective Staged-File Execution: Avoids unnecessary work by only running checks relevant to the files staged for the commit.
2. Fast-Path for Documentation: Commits containing only markdown (*.md), text (*.txt), or asset files skip expensive build and test pipelines.
3. Subshell Directory Isolation: Every check runs in a subshell (cd "${REPO_ROOT}" && ...) to prevent current working directory drift.
4. Fail-Fast with Remediation: Aborts immediately on failure and outputs exact commands needed to fix the problem.
5. Zero External Runtime Dependencies: Implemented in portable POSIX bash, requiring no heavy wrapper packages at the repository root.

4. Operations & Maintenance Runbook

Activating the Hook Locally

make hooks-install
# Or: ./scripts/install-hooks.sh

Manually Running Pre-Commit Gate

make pre-commit

Bypass Flags (Emergency Only)

# Skip tests for quick drafts
SKIP_TESTS=1 git commit -s -S -m "chore: draft"

# Skip builds for lightweight edits
SKIP_BUILDS=1 git commit -s -S -m "fix: comment"

# Force full validation across all subsystems
PRECOMMIT_ALL=1 git commit -s -S -m "feat: core change"