takt

TAKT

🇯🇵 日本語ドキュメント | 💬 Discord Community

TAKT Agent Koordination Topology — Give your AI coding agents structured review loops, managed prompts, and guardrails — so they deliver quality code, not just code.

TAKT runs AI agents (Claude Code, Codex, OpenCode, Cursor, GitHub Copilot CLI) through YAML-defined workflows with built-in review cycles. You talk to AI to define what you want, queue tasks, and let TAKT handle the execution — planning, implementation, multi-stage review, and fix loops — all governed by declarative piece files.

TAKT is built with TAKT itself (dogfooding).

Why TAKT

Batteries included — Architecture, security, and AI antipattern review criteria are built in. Ship code that meets a quality bar from day one.

Practical — A tool for daily development, not demos. Talk to AI to refine requirements, queue tasks, and run them. Worktree isolation on task execution, PR creation, and retry on failure.

Reproducible — Execution paths are declared in YAML, keeping results consistent. Pieces are shareable — a workflow built by one team member can be used by anyone else to run the same quality process. Every step is logged in NDJSON for full traceability from task to PR.

Multi-agent — Orchestrate multiple agents with different personas, permissions, and review criteria. Run parallel reviewers, route failures back to implementers, aggregate results with declarative rules. Prompts are managed as independent facets (persona, policy, knowledge, instruction) that compose freely across workflows (Faceted Prompting).

Requirements

Choose one:

• Provider CLIs: Codex, OpenCode, Cursor Agent, or GitHub Copilot CLI installed
• Direct API: Anthropic / OpenAI / OpenCode API Key (no CLI required)

Optional:

• GitHub CLI (gh) — for takt #N (GitHub Issue tasks)

OAuth and API key usage: Whether OAuth or API key access is permitted varies by provider and use case. Check each provider's terms of service before using TAKT.

Quick Start

Install

npm install -g takt

Talk to AI and queue tasks

$ takt

Select piece:
  ❯ 🎼 default (current)
    📁 🚀 Quick Start/
    📁 🎨 Frontend/
    📁 ⚙️ Backend/

> Add user authentication with JWT

[AI clarifies requirements and organizes the task]

> /go

Proposed task:
  ...

What would you like to do?
    Execute now
    Create GitHub Issue
  ❯ Queue as task          # ← normal flow
    Continue conversation

Choosing "Queue as task" saves the task to .takt/tasks/. Run takt run to execute — TAKT creates an isolated worktree, runs the piece (plan → implement → review → fix loop), and offers to create a PR when done.

# Execute queued tasks
takt run

# You can also queue from GitHub Issues
takt add #6
takt add #12

# Execute all pending tasks
takt run

"Execute now" runs the piece directly in your current directory without worktree isolation. Useful for quick experiments, but note that changes go straight into your working tree.

Manage results

# List completed/failed task branches — merge, retry, or delete
takt list

How It Works

TAKT uses a music metaphor — the name itself comes from the German word for "beat" or "baton stroke," used in conducting to keep an orchestra in time. In TAKT, a piece is a workflow and a movement is a step within it, just as a musical piece is composed of movements.

A piece defines a sequence of movements. Each movement specifies a persona (who), permissions (what's allowed), and rules (what happens next). Here's a minimal example:

name: plan-implement-review
initial_movement: plan
max_movements: 10

movements:
  - name: plan
    persona: planner
    edit: false
    rules:
      - condition: Planning complete
        next: implement

  - name: implement
    persona: coder
    edit: true
    required_permission_mode: edit
    rules:
      - condition: Implementation complete
        next: review

  - name: review
    persona: reviewer
    edit: false
    rules:
      - condition: Approved
        next: COMPLETE
      - condition: Needs fix
        next: implement    # ← fix loop

Rules determine the next movement. COMPLETE ends the piece successfully, ABORT ends with failure. See the Piece Guide for the full schema, parallel movements, and rule condition types.

Recommended Pieces

Piece	Use Case
default	Standard development. Test-first with AI antipattern review and parallel review (architecture + supervisor).
frontend-mini	Frontend-focused mini configuration.
backend-mini	Backend-focused mini configuration.
dual-mini	Frontend + backend mini configuration.

See the Builtin Catalog for all pieces and personas.

Key Commands

Command	Description
takt	Talk to AI, refine requirements, execute or queue tasks
takt run	Execute all pending tasks
takt list	Manage task branches (merge, retry, instruct, delete)
takt #N	Execute GitHub Issue as task
takt eject	Copy builtin pieces/facets for customization
takt repertoire add	Install a repertoire package from GitHub

See the CLI Reference for all commands and options.

Configuration

Minimal ~/.takt/config.yaml:

provider: claude    # claude, codex, opencode, cursor, or copilot
model: sonnet       # passed directly to provider
language: en        # en or ja

Or use API keys directly (no CLI installation required for Claude, Codex, OpenCode):

export TAKT_ANTHROPIC_API_KEY=sk-ant-...   # Anthropic (Claude)
export TAKT_OPENAI_API_KEY=sk-...          # OpenAI (Codex)
export TAKT_OPENCODE_API_KEY=...           # OpenCode
export TAKT_CURSOR_API_KEY=...             # Cursor Agent (optional if logged in)
export TAKT_COPILOT_GITHUB_TOKEN=ghp_...   # GitHub Copilot CLI

See the Configuration Guide for all options, provider profiles, and model resolution.

Customization

Custom pieces

takt eject default    # Copy builtin to ~/.takt/pieces/ and edit

Custom personas

Create a Markdown file in ~/.takt/personas/:

# ~/.takt/personas/my-reviewer.md
You are a code reviewer specialized in security.

Reference it in your piece: persona: my-reviewer

See the Piece Guide and Agent Guide for details.

CI/CD

TAKT provides takt-action for GitHub Actions:

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

For other CI systems, use pipeline mode:

takt --pipeline --task "Fix the bug" --auto-pr

See the CI/CD Guide for full setup instructions.

Project Structure

~/.takt/                    # Global config
├── config.yaml             # Provider, model, language, etc.
├── pieces/                 # User piece definitions
├── facets/                 # User facets (personas, policies, knowledge, etc.)
└── repertoire/             # Installed repertoire packages

.takt/                      # Project-level
├── config.yaml             # Project config
├── facets/                 # Project facets
├── tasks.yaml              # Pending tasks
├── tasks/                  # Task specifications
└── runs/                   # Execution reports, logs, context

API Usage

import { PieceEngine, loadPiece } from 'takt';

const config = loadPiece('default');
if (!config) throw new Error('Piece not found');

const engine = new PieceEngine(config, process.cwd(), 'My task');
engine.on('movement:complete', (movement, response) => {
  console.log(`${movement.name}: ${response.status}`);
});

await engine.run();

Documentation

Document	Description
CLI Reference	All commands and options
Configuration	Global and project settings
Piece Guide	Creating and customizing pieces
Agent Guide	Custom agent configuration
Builtin Catalog	All builtin pieces and personas
Faceted Prompting	Prompt design methodology
Repertoire Packages	Installing and sharing packages
Task Management	Task queuing, execution, isolation
Data Flow	Internal data flow and architecture diagrams
CI/CD Integration	GitHub Actions and pipeline mode
Provider Sandbox & Permissions	Sandbox, permission modes, and network access for Codex / OpenCode / Claude
Changelog (日本語)	Version history
Security Policy	Vulnerability reporting

Community

Join the TAKT Discord for questions, discussions, and updates.

Contributing

See CONTRIBUTING.md for details.

License

MIT — See LICENSE for details.