[日本語](./ci-cd.ja.md)

# CI/CD Integration

TAKT can be integrated into CI/CD pipelines to automate task execution, PR reviews, and code generation. This guide covers GitHub Actions setup, pipeline mode options, and configuration for other CI systems.

## GitHub Actions

TAKT provides the official [takt-action](https://github.com/nrslib/takt-action) for GitHub Actions integration.

### Complete Workflow Example

```yaml
name: TAKT

on:
  issue_comment:
    types: [created]

jobs:
  takt:
    if: contains(github.event.comment.body, '@takt')
    runs-on: ubuntu-latest
    permissions:
      contents: write
      issues: write
      pull-requests: write

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Run TAKT
        uses: nrslib/takt-action@main
        with:
          anthropic_api_key: ${{ secrets.TAKT_ANTHROPIC_API_KEY }}
          github_token: ${{ secrets.GITHUB_TOKEN }}
```

### Permissions

The following permissions are required for `takt-action` to function correctly:

| Permission | Required For |
|------------|-------------|
| `contents: write` | Creating branches, committing, and pushing code |
| `issues: write` | Reading and commenting on issues |
| `pull-requests: write` | Creating and updating pull requests |

## Pipeline Mode

Specifying `--pipeline` enables non-interactive pipeline mode. It automatically creates a branch, runs the piece, commits, and pushes. This mode is designed for CI/CD automation where no human interaction is available.

In pipeline mode, PRs are **not** created unless `--auto-pr` is explicitly specified.

### All Pipeline Options

| Option | Description |
|--------|-------------|
| `--pipeline` | **Enable pipeline (non-interactive) mode** -- Required for CI/automation |
| `-t, --task <text>` | Task content (alternative to GitHub Issue) |
| `-i, --issue <N>` | GitHub issue number (same as `#N` in interactive mode) |
| `-w, --piece <name or path>` | Piece name or path to piece YAML file |
| `-b, --branch <name>` | Specify branch name (auto-generated if omitted) |
| `--auto-pr` | Create PR (interactive: skip confirmation, pipeline: enable PR) |
| `--skip-git` | Skip branch creation, commit, and push (pipeline mode, piece-only) |
| `--repo <owner/repo>` | Specify repository (for PR creation) |
| `-q, --quiet` | Minimal output mode: suppress AI output (for CI) |
| `--provider <name>` | Override agent provider (claude\|codex\|opencode\|cursor\|copilot\|mock) |
| `--model <name>` | Override agent model |

### Command Examples

**Basic pipeline execution:**

```bash
takt --pipeline --task "Fix bug"
```

**Pipeline execution with automatic PR creation:**

```bash
takt --pipeline --task "Fix bug" --auto-pr
```

**Link a GitHub issue and create a PR:**

```bash
takt --pipeline --issue 99 --auto-pr
```

**Specify piece and branch name:**

```bash
takt --pipeline --task "Fix bug" -w magi -b feat/fix-bug
```

**Specify repository for PR creation:**

```bash
takt --pipeline --task "Fix bug" --auto-pr --repo owner/repo
```

**Piece execution only (skip branch creation, commit, push):**

```bash
takt --pipeline --task "Fix bug" --skip-git
```

**Minimal output mode (suppress AI output for CI logs):**

```bash
takt --pipeline --task "Fix bug" --quiet
```

## Pipeline Template Variables

Pipeline configuration in `~/.takt/config.yaml` supports template variables for customizing commit messages and PR bodies:

```yaml
pipeline:
  default_branch_prefix: "takt/"
  commit_message_template: "feat: {title} (#{issue})"
  pr_body_template: |
    ## Summary
    {issue_body}
    Closes #{issue}
```

| Variable | Available In | Description |
|----------|-------------|-------------|
| `{title}` | Commit message | Issue title |
| `{issue}` | Commit message, PR body | Issue number |
| `{issue_body}` | PR body | Issue body |
| `{report}` | PR body | Piece execution report |

## Other CI Systems

For CI systems other than GitHub Actions, install TAKT globally and use pipeline mode directly:

```bash
# Install takt
npm install -g takt

# Run in pipeline mode
takt --pipeline --task "Fix bug" --auto-pr --repo owner/repo
```

This approach works with any CI system that supports Node.js, including GitLab CI, CircleCI, Jenkins, Azure DevOps, and others.

## Environment Variables

For authentication in CI environments, set the appropriate API key environment variable. These use TAKT-specific prefixes to avoid conflicts with other tools.

```bash
# For Claude (Anthropic)
export TAKT_ANTHROPIC_API_KEY=sk-ant-...

# For Codex (OpenAI)
export TAKT_OPENAI_API_KEY=sk-...

# For OpenCode
export TAKT_OPENCODE_API_KEY=...

# For Cursor Agent (optional if cursor-agent login session exists)
export TAKT_CURSOR_API_KEY=...

# For GitHub Copilot CLI
export TAKT_COPILOT_GITHUB_TOKEN=ghp_...
```

Priority: Environment variables take precedence over `config.yaml` settings.

> **Note**: If you set an API key via environment variable, installing the corresponding CLI (Claude Code, Codex, OpenCode) is not necessary. TAKT directly calls the respective API. Cursor and Copilot require their CLIs to be installed.

## Cost Considerations

TAKT uses AI APIs (Anthropic, OpenAI, etc.), which can incur significant costs, especially when tasks are auto-executed in CI/CD environments. Take the following precautions:

- **Monitor API usage**: Set up billing alerts with your AI provider to avoid unexpected charges.
- **Use `--quiet` mode**: Reduces output volume but does not reduce API calls.
- **Choose appropriate pieces**: Simpler pieces use fewer API calls than multi-stage pieces (e.g., `default` with parallel reviews).
- **Limit CI triggers**: Use conditional triggers (e.g., `if: contains(github.event.comment.body, '@takt')`) to prevent unintended executions.
- **Test with `--provider mock`**: Use mock provider during CI pipeline development to avoid real API costs.
