Files
github-spec-kit/extensions/git/README.md
Copilot 1a9e4d1d8d feat: Git extension stage 1 — bundled extensions/git with hooks on all core commands (#1941)
* feat: add git extension with hooks on all core commands

- Create extensions/git/ with 5 commands: initialize, feature,
  validate, remote, commit
- 18 hooks covering before/after for all 9 core commands
- Scripts: create-new-feature, initialize-repo, auto-commit,
  git-common (bash + powershell)
- Configurable: branch_numbering, init_commit_message,
  per-command auto-commit with custom messages
- Add hooks to analyze, checklist, clarify, constitution,
  taskstoissues command templates
- Allow hooks-only extensions (no commands required)
- Bundle extension in wheel via pyproject.toml force-include
- Resolve bundled extensions locally before catalog lookup
- Remove planned-but-unimplemented before/after_commit hook refs
- Update extension docs (API ref, dev guide, user guide)
- 37 new tests covering manifest, install, all scripts (bash+pwsh),
  config reading, graceful degradation

Stage 1: opt-in via 'specify extension add git'. No auto-install,
no changes to specify.md or core git init code.

Refs: #841, #1382, #1066, #1791, #1191

* fix: set git identity env vars in extension tests for CI runners

* fix: address PR review comments

- Fix commands property KeyError for hooks-only extensions
- Fix has_git() operator precedence in git-common.sh
- Align default commit message to '[Spec Kit] Initial commit' across
  config-template, extension.yml defaults, and both init scripts
- Update README to reflect all 5 commands and 18 hooks

* fix: address second round of PR review comments

- Add type validation for provides.commands (must be list) and hooks
  (must be dict) in manifest _validate()
- Tighten malformed timestamp detection in git-common.sh to catch
  7-digit dates without trailing slug (e.g. 2026031-143022)
- Pass REPO_ROOT to has_git/Test-HasGit in create-new-feature scripts
- Fix initialize command docs: surface errors on git failures, only
  skip when git is not installed
- Fix commit command docs: 'skips with a warning' not 'silently'
- Add tests for commands:null and hooks:list rejection

* fix: address third round of PR review comments

- Remove scripts frontmatter from command files (CommandRegistrar
  rewrites ../../scripts/ to .specify/scripts/ which points at core
  scripts, not extension scripts)
- Update speckit.git.commit command to derive event name from hook
  context rather than using a static example
- Clarify that hook argument passthrough works via AI agent context
  (the agent carries conversation state including user's original
  feature description)

* fix: address fourth round of PR review comments

- Validate extension_id against ^[a-z0-9-]+$ in _locate_bundled_extension
  to prevent path traversal (security fix)
- Move defaults under config.defaults in extension.yml to match
  ConfigManager._get_extension_defaults() schema
- Ship git-config.yml in extension directory so it's copied during
  install (provides.config template isn't materialized by ExtensionManager)
- Condition handling in hook templates: intentionally matches existing
  pattern from specify/plan/tasks/implement templates (not a new issue)

* fix: add --allow-empty to git commit in initialize-repo scripts

Ensures git init succeeds even on empty repos where nothing has been
staged yet.

* fix: resolve display names to bundled extensions before catalog download

When 'specify extension add "Git Branching Workflow"' is used with a
display name instead of the ID, the catalog resolver now runs first to
map the name to an ID, then checks bundled extensions again with the
resolved ID before falling back to network download.

Also noted: EXECUTE_COMMAND_INVOCATION and condition handling match the
existing pattern in specify/plan/tasks/implement templates (pre-existing,
not introduced by this PR).

* fix: handle before_/after_ prefixes in auto-commit message derivation

- Strip both before_ and after_ prefixes when deriving command name
  (fixes misleading 'Auto-commit after before_plan' messages)
- Include phase (before/after) in default commit messages
- Clarify README config example is an override, not default behavior

* fix: use portable grep -qw for word boundary in create-new-feature.sh

BSD grep (macOS) doesn't support \b as a word boundary. Replace with
grep -qw which is POSIX-portable.

* fix: validate hook values, numeric --number, and PS warning routing

- Validate each hook value is a dict with a 'command' field during
  manifest _validate() (prevents crash at install time)
- Validate --number is a non-negative integer in bash create-new-feature
  (clear error instead of cryptic shell arithmetic failure)
- Route PowerShell no-git warning to stderr in JSON mode so stdout
  stays valid JSON

---------

Co-authored-by: Manfred Riem <15701806+mnriem@users.noreply.github.com>
2026-04-07 08:39:35 -05:00

4.2 KiB

Git Branching Workflow Extension

Git repository initialization, feature branch creation, numbering (sequential/timestamp), validation, remote detection, and auto-commit for Spec Kit.

Overview

This extension provides Git operations as an optional, self-contained module. It manages:

  • Repository initialization with configurable commit messages
  • Feature branch creation with sequential (001-feature-name) or timestamp (20260319-143022-feature-name) numbering
  • Branch validation to ensure branches follow naming conventions
  • Git remote detection for GitHub integration (e.g., issue creation)
  • Auto-commit after core commands (configurable per-command with custom messages)

Commands

Command Description
speckit.git.initialize Initialize a Git repository with a configurable commit message
speckit.git.feature Create a feature branch with sequential or timestamp numbering
speckit.git.validate Validate current branch follows feature branch naming conventions
speckit.git.remote Detect Git remote URL for GitHub integration
speckit.git.commit Auto-commit changes (configurable per-command enable/disable and messages)

Hooks

Event Command Optional Description
before_constitution speckit.git.initialize No Init git repo before constitution
before_specify speckit.git.feature No Create feature branch before specification
before_clarify speckit.git.commit Yes Commit outstanding changes before clarification
before_plan speckit.git.commit Yes Commit outstanding changes before planning
before_tasks speckit.git.commit Yes Commit outstanding changes before task generation
before_implement speckit.git.commit Yes Commit outstanding changes before implementation
before_checklist speckit.git.commit Yes Commit outstanding changes before checklist
before_analyze speckit.git.commit Yes Commit outstanding changes before analysis
before_taskstoissues speckit.git.commit Yes Commit outstanding changes before issue sync
after_constitution speckit.git.commit Yes Auto-commit after constitution update
after_specify speckit.git.commit Yes Auto-commit after specification
after_clarify speckit.git.commit Yes Auto-commit after clarification
after_plan speckit.git.commit Yes Auto-commit after planning
after_tasks speckit.git.commit Yes Auto-commit after task generation
after_implement speckit.git.commit Yes Auto-commit after implementation
after_checklist speckit.git.commit Yes Auto-commit after checklist
after_analyze speckit.git.commit Yes Auto-commit after analysis
after_taskstoissues speckit.git.commit Yes Auto-commit after issue sync

Configuration

Configuration is stored in .specify/extensions/git/git-config.yml:

# Branch numbering strategy: "sequential" or "timestamp"
branch_numbering: sequential

# Custom commit message for git init
init_commit_message: "[Spec Kit] Initial commit"

# Auto-commit per command (all disabled by default)
# Example: enable auto-commit after specify
auto_commit:
  default: false
  after_specify:
    enabled: true
    message: "[Spec Kit] Add specification"

Installation

# Install the bundled git extension (no network required)
specify extension add git

Disabling

# Disable the git extension (spec creation continues without branching)
specify extension disable git

# Re-enable it
specify extension enable git

Graceful Degradation

When Git is not installed or the directory is not a Git repository:

  • Spec directories are still created under specs/
  • Branch creation is skipped with a warning
  • Branch validation is skipped with a warning
  • Remote detection returns empty results

Scripts

The extension bundles cross-platform scripts:

  • scripts/bash/create-new-feature.sh — Bash implementation
  • scripts/bash/git-common.sh — Shared Git utilities (Bash)
  • scripts/powershell/create-new-feature.ps1 — PowerShell implementation
  • scripts/powershell/git-common.ps1 — Shared Git utilities (PowerShell)