Git repository initialization, feature branch creation, numbering (sequential/timestamp), validation, remote detection, and auto-commit for Spec Kit.
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 and optional templates for branch namespaces - 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, or Conventional Commit messages generated by the agent)
| 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) |
| 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 is stored in .specify/extensions/git/git-config.yml:
# Branch numbering strategy: "sequential" or "timestamp"
branch_numbering: sequential
# Optional branch name template. Leave empty for the default "{number}-{slug}".
# Supported tokens: {author}, {app}, {number}, {slug}; {slug} must not appear
# before {number}, and the final path segment must start with {number}-.
# Example for monorepos: "{author}/{app}/{number}-{slug}"
branch_template: ""
# Optional shorthand namespace. Leave empty to use branch_template/default behavior.
# Example: "features/{app}" expands to "features/{app}/{number}-{slug}"
branch_prefix: ""
# Custom commit message for git init
init_commit_message: "[Spec Kit] Initial commit"
# Commit message style for auto-commit hooks: "fixed" (default) uses the
# messages below; "conventional" asks the agent to generate a Conventional
# Commit message (e.g. "feat: add OAuth spec") from the diff instead.
commit_style: fixed
# 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"{author} is derived from Git config and sanitized for branch names. {app} is derived from the Spec Kit init directory name. Custom templates must not put {slug} before {number}, and must put {number}- at the start of the final path segment so generated names remain valid feature branches. For a monorepo project at apps/web/.specify/, a template such as {author}/{app}/{number}-{slug} produces branches like jdoe/web/008-guided-tour.
For simple namespace-only customization, branch_prefix is also accepted as a shorthand and expands to <branch_prefix>/{number}-{slug}.
# Install the bundled git extension (no network required)
specify extension add git# Disable the git extension (spec creation continues without branching)
specify extension disable git
# Re-enable it
specify extension enable gitWhen 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
The extension bundles cross-platform scripts:
scripts/bash/create-new-feature-branch.sh— Bash implementation (branch creation only)scripts/bash/git-common.sh— Shared Git utilities (Bash)scripts/powershell/create-new-feature-branch.ps1— PowerShell implementation (branch creation only)scripts/powershell/git-common.ps1— Shared Git utilities (PowerShell)