By name: commit-message description: This skill should be used when the user asks to "create a commit", "generate commit message", "commit changes", "make a commit", mentions "conventional commits", or discusses commit message formatting. Provides guided workflow for creating properly formatted commit messages with line length validation and required trailers. version: 0.2.0
Conventional Commit Message Creation
Create properly formatted conventional commit messages following project standards with line length validation and required trailers.
Purpose
Generate commit messages that:
- Follow conventional commits format (
type(scope): description) - Use component names or GitHub issue numbers as scope
- Respect line length limits (50 for subject, 72 for body)
- Include required trailers (Signed-off-by, Assisted-by)
- Match Tekton commit message standards
Quick Workflow
- Analyze changes: Run git status and git diff to understand modifications
- Determine scope: Use component name from changed files, or GitHub issue number if available
- Generate message: Create conventional commit message with proper formatting
- Add trailers: Include Signed-off-by and Assisted-by trailers
- Confirm with user: Display message and wait for approval before committing
CRITICAL: Never commit without explicit user confirmation.
Conventional Commit Format
Structure
<type>(<scope>): <description>
[optional body]
Signed-off-by: <name> <email>
Assisted-by: <model-name> (via Cursor)
```text
### Type Selection
Choose the appropriate commit type based on changes:
| Type | Description | Example |
| ------ | ------------- | --------- |
| `feat` | New features | `feat(tektonpipeline): add HA support` |
| `fix` | Bug fixes | `fix(reconciler): resolve race condition` |
| `docs` | Documentation | `docs(README): update installation steps` |
| `refactor` | Code refactoring | `refactor(installerset): simplify logic` |
| `test` | Test changes | `test(tektonchain): add unit tests` |
| `chore` | Maintenance | `chore(deps): update go dependencies` |
| `build` | Build system | `build(Makefile): add vendor target` |
| `ci` | CI/CD changes | `ci(github): add golangci-lint action` |
| `perf` | Performance | `perf(cache): optimize lookup speed` |
| `style` | Code style | `style(format): run fumpt formatter` |
| `revert` | Revert commit | `revert: undo breaking API change` |
For complete type reference, see `references/commit-types.md`.
### Scope Rules
#### Priority 1: Component from changed files
Analyze staged files to identify the primary component:
```bash
# Get list of staged files
git diff --cached --name-only
```text
| File pattern | Scope | Example commit |
| ------------ | ----- | -------------- |
| `pkg/reconciler/kubernetes/tektonpipeline/*` | `tektonpipeline` | `fix(tektonpipeline): resolve status update` |
| `pkg/reconciler/kubernetes/tektonchain/*` | `tektonchain` | `feat(tektonchain): add OCI support` |
| `pkg/reconciler/openshift/*` | component name | `fix(tektondashboard): fix route creation` |
| `pkg/reconciler/common/*` | `common` | `refactor(common): simplify installerset` |
| `pkg/apis/*` | `api` | `feat(api): add new CRD field` |
| `docs/*` | `docs` or filename | `docs(README): update steps` |
| `test/*` | component being tested | `test(tektonchain): add unit tests` |
| `cmd/*` | command name | `feat(operator): add new flag` |
| Root files | filename | `chore(Makefile): add target` |
| `AGENTS.md`, `CLAUDE.md` | `docs` | `docs(AGENTS.md): update conventions` |
#### Priority 2: GitHub issue number (optional)
If the work is tracked in a GitHub issue and the user provides one, it can be used as the scope:
```text
# Branch: fix-123-installerset-race
# Scope: #123 or component name
# Result: fix(installerset): resolve race condition
Fixes #123
```text
Add `Fixes #NNN` or `Closes #NNN` in the commit body (not the scope) — this is the standard GitHub convention for auto-closing issues.
#### Priority 3: Ask user
If changed files span multiple components or scope is unclear, ask the user which component is the primary focus.
## Line Length Requirements
### Subject Line
- **Target**: 50 characters maximum
- **Hard limit**: 72 characters (Tekton community standard)
- **Format**: `type(scope): description` counts toward limit
- **Tips**: Use present tense, no period at end
```text
# Good (44 chars)
feat(tektonpipeline): add HA support
# Too long - shorten the subject
feat(tektonpipeline): add comprehensive high-availability support for pipeline controller
```text
### Body
- **Wrap at 72 characters per line**
- **Blank line** required between subject and body
- **Content**: Explain why, not what (code shows what)
- **Format**: Wrap manually or use heredoc in git commit
```text
feat(tektonpipeline): add HA support
Enable leader election in the pipeline reconciler to support
high-availability deployments. This prevents split-brain issues
when multiple operator replicas are running.
Signed-off-by: Developer Name <developer@example.com>
Assisted-by: Claude Sonnet 4.5 (via Cursor)
```text
## Required Trailers
### Signed-off-by
**Always include**: `Signed-off-by: <name> <email>`
This certifies the Developer Certificate of Origin (DCO) — required by tektoncd upstream.
**Detection priority order**:
1. Environment variables: `$GIT_AUTHOR_NAME` and `$GIT_AUTHOR_EMAIL`
2. Git config: `git config user.name` and `git config user.email`
3. If neither configured, ask user to provide details
```bash
# Check environment variables first
echo "$GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>"
# Fallback to git config
git config user.name
git config user.email
```text
For complete detection logic, see `references/trailer-detection.md`.
### Assisted-by
**Always include**: `Assisted-by: <model-name> (via Cursor)`
**Format examples**:
```text
Assisted-by: Claude Sonnet 4.5 (via Cursor)
Assisted-by: Claude Opus 4.5 (via Cursor)
```text
Use the actual model name (Claude Sonnet 4.5, Claude Opus 4.5, etc.).
## User Confirmation Requirement
**CRITICAL RULE**: Always ask for user confirmation before executing `git commit`.
### Confirmation Workflow
1. **Generate** the commit message following all rules above
2. **Display** the complete message to the user with separator
3. **Ask**: "Should I commit with this message? (y/n)"
4. **Wait** for user response
5. **Commit** only if user confirms (yes/y/affirmative)
### Example Interaction
```text
Generated commit message:
---
feat(tektonchain): add OCI bundle support
Enable storing Tekton Chains signatures in OCI registries. This
allows signing artifacts without requiring a separate storage
backend.
Signed-off-by: Developer Name <developer@example.com>
Assisted-by: Claude Sonnet 4.5 (via Cursor)
---
Should I commit with this message? (y/n)
```text
Wait for user response before proceeding.
## Commit Execution
Use heredoc format for proper multi-line handling:
```bash
git commit -m "$(cat <<'EOF'
feat(tektonchain): add OCI bundle support
Enable storing Tekton Chains signatures in OCI registries.
Signed-off-by: Developer Name <developer@example.com>
Assisted-by: Claude Sonnet 4.5 (via Cursor)
EOF
)"
```text
**Never use**:
- `--no-verify` (skips pre-commit hooks)
- `--no-gpg-sign` (skips signing)
- `--amend` (unless explicitly requested and safe)
## Complete Examples
### Feature with component scope
```text
feat(tektonpipeline): add HA leader election
Enable leader election in the pipeline reconciler to support
high-availability deployments with multiple operator replicas.
Signed-off-by: Jane Developer <jane@example.com>
Assisted-by: Claude Sonnet 4.5 (via Cursor)
```text
### Bug fix closing a GitHub issue
```text
fix(installerset): resolve concurrent reconcile panic
Prevent nil pointer dereference when two reconcile loops run
concurrently on the same InstallerSet object.
Fixes #789
Signed-off-by: John Developer <john@example.com>
Assisted-by: Claude Sonnet 4.5 (via Cursor)
```text
### Documentation update
```text
docs(AGENTS.md): update architecture conventions
Add InstallerSet naming patterns and clarify platform split
rules for contributors.
Signed-off-by: Jane Developer <jane@example.com>
Assisted-by: Claude Sonnet 4.5 (via Cursor)
```text
### Breaking change
```text
feat(api)!: remove deprecated TektonConfig fields
Remove fields deprecated in v0.60 from TektonConfig spec.
Operators upgrading from v0.60 must migrate before upgrading.
BREAKING CHANGE: Removed spec.targetNamespace and spec.profile
from TektonConfig. Use spec.config instead. See migration guide.
Signed-off-by: John Developer <john@example.com>
Assisted-by: Claude Sonnet 4.5 (via Cursor)
```text
## Format standards
Follow [Tekton commit message standards](https://github.com/tektoncd/community/blob/master/standards.md#commit-messages):
- Conventional commit format (`type(scope): description`)
- Subject line: target 50 characters, hard limit 72
- Body lines wrapped at 72 characters
- Required `Signed-off-by` trailer (DCO)
- No trailing punctuation on the subject
## Auto-Detection Summary
When generating commit messages:
1. Run `git status` (without -uall flag)
2. Run `git diff` for staged and unstaged changes
3. Identify primary component from staged file paths
4. If scope unclear, ask user
5. If user mentions a GitHub issue number, add `Fixes #NNN` to body
6. Analyze staged files to determine commit type
7. Generate appropriate scope and description
8. Detect author info from environment variables or git config
9. Ensure subject line is ≤50 characters (max 72)
10. Wrap body text at 72 characters per line
11. Add required trailers (Signed-off-by and Assisted-by)
12. Format according to conventional commits standard
13. **Display message and ask for user confirmation**
14. Only commit after receiving confirmation
## Additional Resources
For detailed information:
- **`references/commit-types.md`** - Complete commit type reference with descriptions
- **`references/trailer-detection.md`** - Author detection logic and priority order