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crewyard

v0.6.0

Published

Local-first coordination engine for independent AI coding agents.

Readme

In development toward v1.0 · MIT licensed · No hosted backend required

[!NOTE] Pre-1.0 software. Crewyard is being developed toward v1.0, and commands and configuration may still change between minor versions. Run crew <command> --help to see what your installed version supports, and check the changelog before upgrading.

Coding agents are good at writing code. Coordinating them is the hard part.

Running multiple independent agents on one repository creates a new set of engineering problems: duplicated work, conflicting edits, stale context, overflowing PR queues, repeated reviews, and merges that invalidate work already in flight.

Crewyard is the coordination layer between your agents and your repository. It gives independent agents a shared, durable workflow—without forcing them to use the same model, provider, or chat session.

| Without coordination | With Crewyard | | :--- | :--- | | Agents pick up overlapping tasks | Atomic claims, leases, and scope reservations | | Parallel work collides in one checkout | Isolated Git worktrees per task | | Context drifts as branches change | Versioned repository indexing and context packs | | Reviews repeat or become stale | Evidence-aware incremental review | | PRs accumulate and merges conflict | Serialized integration and GitHub-aware queueing | | Crashes lose orchestration state | Durable events, reconciliation, and recovery |

One workflow. From goal to merge.

flowchart LR
    A["01 · Plan"] --> B["02 · Schedule"]
    B --> C["03 · Execute"]
    C --> D["04 · Review"]
    D --> E["05 · Integrate"]
    E --> F["06 · Reconcile"]
    F -. "Unblock dependent work" .-> B

    classDef default fill:#18181b,color:#fafafa,stroke:#52525b,stroke-width:1px;
    classDef finish fill:#134e4a,color:#f0fdfa,stroke:#2dd4bf,stroke-width:1px;
    class F finish;
  1. Plan with dependencies. Define contracts, scopes and behavioral acceptance checks, then approve a validated task graph.
  2. Schedule safely. Dispatch ready tasks subject to concurrency limits, dependencies, and reservations.
  3. Run independently. Assign work to Codex, Claude Code, OpenCode, or another compatible process in isolated worktrees.
  4. Review with evidence. Bind findings to Git source objects, context, reviewer identity, policy and expiry. Reuse only evidence that remains valid.
  5. Integrate deliberately. Validate every exposed cumulative merge prefix and recheck current policy and GitHub state before each mutation.
  6. Recover and continue. Observe the actual merge, track post-merge checks, preserve interrupted work and unblock downstream tasks.

Built for real engineering workflows

Multi-agent, multi-provider

Use independent coding agents and account profiles without tying the workflow to one LLM provider.

Adapters: Codex · Claude Code · OpenCode · Ollama · Generic process

Owned execution and worktrees

Atomic task claims, fenced execution attempts, bounded subprocess workers and dedicated Git worktrees keep ownership explicit across concurrent callers.

Repository-aware context

Pin indexing and retrieval to exact commits. Durable reader claims protect snapshots while context is assembled; retrieved code carries commit and blob provenance.

Review-to-merge orchestration

Track review evidence, integration readiness, GitHub checks, queue state, and merge outcomes across the full task lifecycle.

Local by design

Keep orchestration state in a local SQLite database. No Crewyard-hosted backend is required; configured providers and GitHub may still use network services.

Multiple ways to interact

Operate through a CLI, MCP tools, portable Agent Skills, a background service, or a terminal dashboard—all backed by the same application services.

Installation

Crewyard targets Linux (x64, arm64), macOS (Apple Silicon, Intel), and Windows (x64). You need Git 2.38+, at least one compatible coding-agent CLI, and the authenticated GitHub CLI for GitHub integration.

Install with npm

npm install --global crewyard
crew version

npm installs a prebuilt binary for your platform; Node.js 22+ is only needed for the small launcher. Standalone binaries that need neither Node.js nor Bun are attached to every GitHub release.

Install from source

Requires Bun 1.4.4+.

git clone https://github.com/orafaelfragoso/crewyard.git
cd crewyard
bun install --frozen-lockfile
bun run crew doctor

In a source checkout, run bun run crew from the repository root wherever this README uses crew.

See installation and upgrades for supported platforms, direct binary installs, checksums, backups, and removal.

Quick start

New to Crewyard? The getting-started guide walks through every step and what each one does.

# 1. Register your repository
cd ~/src/my-repo
crew doctor
crew init --repo .

# 2. Add an account: reuse the Claude Code login you already have
crew account add --provider claude --name personal --use-default-config
crew account test claude/personal

# 3. Create agents that use it, and turn on AI review
crew agent create --name architect --role architect --account claude/personal
crew agent create --name engineer  --account claude/personal
# Replace this with a model ID supported by your account.
REVIEW_MODEL='your-provider-model-id'
crew agent create --name reviewer --role reviewer --account claude/personal --model "$REVIEW_MODEL"
crew config set review.reviewer_agent reviewer --yes

# 4. Give it a goal, review the plan, approve it
crew goal create --title "Add JWT authentication" --description-file goal.md
crew goal plan GOAL-1 --agent architect
crew goal status GOAL-1
crew goal approve GOAL-1 --yes

# 5. Let it work, and watch
crew service start
crew dashboard

GOAL-1 is the ID that goal create prints. Codex and OpenCode work the same way with --provider codex or --provider opencode. For separate logins, several accounts or API keys, see Accounts; to change or remove agents, see Agents and policies.

To let Claude Code, Codex and OpenCode sessions you start yourself use Crewyard's tasks and tools, run crew install (add --dry-run first to see the changes). The guide lists where it installs the MCP server and Skills.

Direct CLI and MCP requests drive or join durable operations without a service. The background service keeps scheduling work continuously; closing a calling host does not guarantee continuation. The default worker pool allows six operations globally, four per project and one per project/domain. See execution limits for tuning and shutdown behavior.

How it works

Crewyard is a local orchestration system, not an LLM gateway. It coordinates tools you already use while maintaining its own authoritative task and integration state.

flowchart TB
    DEV["Developer / automation"] --> CLI["CLI & terminal dashboard"]
    AG["Codex · Claude Code · OpenCode · Other"] --> MCP["MCP server & Agent Skills"]

    CLI --> APP["Shared application services"]
    MCP --> APP

    APP --> PLAN["Task graph & scheduler"]
    APP --> CTX["Versioned index & context"]
    APP --> REV["Review & integration"]
    APP --> EVT["Events & observability"]

    PLAN --> WORK["Isolated Git worktrees"]
    REV <--> GH["GitHub & CI"]
    PLAN --> DB[("Local SQLite")]
    CTX --> DB
    REV --> DB
    EVT --> DB

    classDef default fill:#18181b,color:#fafafa,stroke:#52525b,stroke-width:1px;
    classDef store fill:#134e4a,color:#f0fdfa,stroke:#2dd4bf;
    class DB store;

The architecture is deliberately provider-agnostic. The CLI and MCP server are thin interfaces over shared application services. SQLite WAL provides durable coordination; external GitHub and process side effects are reconciled rather than treated as a single database transaction.

Exact commit fetches share immutable objects across processes without moving branch refs. Incremental indexing reuses unchanged blobs; snapshot membership still scales with repository size. Full worktrees and independent bootstrap commands remain the supported execution path. The benchmark method and results record the measurements and decisions.

For an engineering-level explanation, see the architecture overview, indexing model, and task/lease design.

Interfaces

| Interface | Designed for | Reference | | :--- | :--- | :--- | | CLI (crew) | Humans, scripts, and command-capable agents | CLI reference | | MCP (crew mcp) | Agent hosts that support Model Context Protocol | MCP reference | | Agent Skills | Portable instructions for planning, execution, review, integration, recovery, and context | Skills guide | | Local service (crew service) | Continuous dispatch, reconciliation, and integration | Architecture | | Terminal dashboard (crew dashboard) | Operational visibility into active work and events | CLI reference |

Safety and recovery

Crewyard enforces coordination through its application services:

  • Fenced task leases prevent stale workers from submitting work as the current owner.
  • Scoped worktrees separate parallel tasks and protect developer checkouts.
  • Approval and policy gates control high-impact transitions.
  • GitHub branch protections remain authoritative during integration.
  • Reconciled outbox operations check observed outcomes before retrying. Provider work can repeat after a crash; execution is not exactly once.
  • Local credential handling keeps secrets out of repository configuration and orchestration event logs.

Workers run as your OS user; worktrees and process boundaries are not an OS sandbox. Recovery verifies process identity before termination or resource reuse and preserves resources when ownership cannot be established. GitHub's head-only merge API cannot reserve the base: an unexpected landed tree is detected after the merge and pauses later local merges. Native merge-group checks remain preferred. Read the security model and integration design before enabling unattended workflows.

Documentation

| Start here | Learn more | | :--- | :--- | | Getting started | From install to your first agent-run task, step by step | | Accounts | Logging agents in: existing logins, separate logins, API keys | | Agents and policies | Roles, using several accounts, changing and removing agents | | Installation | Supported setups, local data, upgrades, and backups | | CLI reference | Commands, options, and machine-readable output | | MCP host setup | Connecting existing coding-agent tools | | Agent Skills | Reusable workflows for compatible agents | | Architecture | Services, storage, scheduling, and system boundaries | | Security model | Trust boundaries, permissions, and operational safety | | Recovery runbooks | Failures, restarts, and reconciliation | | Metrics definitions | Local validation, hosted check observations, reuse and operation timing | | Acceptance matrix | Automated evidence and open GitHub, provider and platform release gates |

Development

The codebase is a Bun/TypeScript monorepo with packages for scheduling, providers, indexing, reviews, integration, storage, and telemetry.

bun install --frozen-lockfile
bun run typecheck
bun run lint
bun test
bun run build:binaries  # platform binaries, manifest and checksums
bun run build:npm       # npm tarballs, after binaries have been built

See AGENTS.md for code conventions, the architecture documentation for package boundaries, and the release process for distribution.

Contributing

Contributions are welcome. Read the contributing guide and the code of conduct, and use GitHub Issues for bug reports and feature requests. Report vulnerabilities privately as described in the security policy.

Project status & licensing

Crewyard is under active development toward v1.0. Releases are cut automatically from main with release-please; every release is listed in the changelog and on the releases page. See the release process for how npm packages and platform binaries are built and published.

Local Linux tests cover direct and packaged workers, cancellation, recovery and evidence guards. Real GitHub organization/merge-queue runs, authenticated multi-provider delivery and actual macOS/Windows worker acceptance remain open; the acceptance matrix distinguishes those gates from local fixtures.

Licensed under the MIT License. Copyright © 2026 Rafael Fragoso.