Fletch

fwdai/fletch

Native macOS IDE that seals each agent in its own repo clone under Seatbelt or Docker, serves each a shared symbol and call-graph index over MCP, and gates every step on tests or your approval. Claude Code, Codex, Cursor, OpenCode.

Rust AGPL-3.0

View on GitHub → Find it in the atlas

Install

git clone https://github.com/fwdai/fletch.git

Repository reader

Explore before you clone

Read the project’s README, skills and supporting Markdown here. Rendered view is shown first; source is one click away when you need the exact text.

Fetched from GitHub
Open on GitHub
Loading the project’s README…

Public files are loaded on demand from the repository. The atlas does not copy or modify them.

Screenshot

Screenshot or social card for Fletch
The project's own screenshot, fetched from source rather than copied into this repository.

Platform support

Derived from the project's own README, install route, CI configuration and release assets — not from running it.
PlatformRuns hereOn what evidence
WindowsNoNo evidence of support anywhere in the project.
WSL2NoNo evidence of support anywhere in the project.
macOSYesStated in the project's own README, install route, CI config or release assets.
LinuxNoNo evidence of support anywhere in the project.
DockerNoNo evidence of support anywhere in the project.

Where it came from

Named by 1 of the 39 lists the atlas merges.

How it is classified

One topic, 6 harnesses. Each link is a prerendered page of everything else in that slice.

Coding AgentsClaude CodeClaude / AnthropicopencodeMCPCodex / OpenAICursor

Related in Coding Agents

Closest first — projects that plug into the same harnesses, then the ones the most lists agreed on.

  • SwarmClawswarmclawai/swarmclawSelf-hosted AI runtime that orchestrates Claude Code, Codex, Gemini CLI, OpenCode, Copilot CLI, Cursor Agent, Goose, Qwen Code, and Droid with…
  • VoltLeulAria/voltOpen-source agentic workspace on the VS Code core that runs agent chats side by side, each optionally in its own Git worktree, with subagents…
  • deliberationantonbabenko/deliberationAsk GPT, Gemini, Grok, or OpenRouter for a second opinion or a fix, as expert subagents over MCP
  • omg.devBennyKok/omg.devOpen-source parallel-agent harness: run coding agents on your own computer or a hosted one, controlled from a single web UI with a mobile client…
  • WSPwsp-labs/wspOrchestrates Claude Code, Codex, OpenCode, and Cursor across machines and cloud workspaces, syncing memory, skills, MCPs, plugins, tools, and…
  • Yardletzzunkie/yardletNative macOS app that runs each agent's own CLI and sign-in side by side, keeping sessions in the agent's own store, with handoff between tasks…
  • gentle-aiGentleman-Programming/gentle-aiGentle-AI configures the AI coding agents you already use: Claude Code, Cursor, OpenCode, Codex, Pi, and more. Choose persistent memory…
  • agent-managerYoanWai/agent-managerTerminal UI that runs Gemini CLI alongside Claude Code, Codex, OpenCode and other coding-agent CLIs, each in its own persistent tmux session. One…