reevesagents

io.github.mertkayacs/reevesagents · 102 stars · TypeScript · Apache-2.0

MCP server Spawn, read and steer AI coding CLIs (Claude Code, Codex, Kimi and more) in local tmux windows.

Install

The repo has no one-line install. Follow its README.

Published as

npmreevesagentsstdio

From the server's entry in the official MCP Registry.

Open the repo

Files

README.md

Demo · Docs · FAQ · Issues

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ReevesAgents is a local workspace for AI coding CLIs. It runs Claude Code, Codex, OpenCode, Hermes, Kimi, DeepSeek, Qwen, Pi, Aider, and other provider CLIs side by side in tmux. You can use it as a normal CLI/TUI/Web UI, or attach its opt-in MCP so one agent can spawn, read, steer, and stop the rest.

Provider logins stay inside each provider CLI. ReevesAgents keeps its own state as a few plain JSON files under ~/.reeves, and it runs only while you or an attached CLI are using it.

Quick Start

pnpm add -g reevesagents
reevesagents doctor
reevesagents

Start a run from the CLI:

reevesagents spawn claude-code:lead codex:tests hermes:research \
  --name "release check" \
  --prompt "Review the release path, test coverage, and docs."

Open the Web UI:

reevesagents web

Let one attached agent drive the others:

reevesagents attach codex
reevesagents hosts

Restart that CLI after attach so it loads the MCP tools.

What It Gives You

Surface	Use it for
TUI	Keyboard-first run control inside the terminal.
Web UI	Local visual view of runs, panes, agents, approvals, and history.
CLI	Scripts, smoke checks, spawning, state cleanup, and tmux jumps.
Agent Control MCP	One trusted CLI can spawn and drive other CLIs through local tools.
tmux	Real provider CLI windows that keep running after the UI closes.

ReevesAgents is local by design. State is plain JSON under ~/.reeves, and the CLIs it starts are the same CLIs you already use by hand.

Install

ReevesAgents needs Node.js 20.19+, tmux 3.0+, and at least one supported provider CLI installed and authenticated. It supports macOS, Linux, and WSL.

# Homebrew
brew tap mertkayacs/reevesagents
brew install reevesagents

# pnpm
pnpm add -g reevesagents

# npm
npm install -g reevesagents

# one-shot checks
pnpm dlx reevesagents doctor
npx reevesagents doctor

Pin a version by replacing <version>:

pnpm add -g reevesagents@<version>

Source install:

git clone https://github.com/mertkayacs/reevesagents.git
cd reevesagents
pnpm install
pnpm build
pnpm link --global
reevesagents doctor

Screenshots

The TUI and Web UI drive the same local runs:

Commands

No arguments launches the TUI.

Command	Purpose
`reevesagents`	Launch the TUI.
`spawn [spec...]`	Start a run. Each spec is `provider[:nickname[:model]]`.
`add [spec...]`	Add agents to the most recent active run.
`runs`	List active runs.
`agents [run-id]`	List agents across runs or inside one run.
`open <id>`	Jump to a run or agent tmux window.
`peek <agent-id>`	Print recent output from one agent.
`send <agent-id> <text...>`	Paste text into an agent without submitting.
`key <agent-id> <key>`	Send `enter`, `escape`, arrows, `tab`, `space`, `backspace`, or `ctrl-c`.
`interrupt <agent-id>`	Send Ctrl-C to one agent.
`stop <run-id>`	Stop a run. Requires `--yes` or `ALLOW_DESTRUCTIVE=1`.
`kill <agent-id>`	Stop one agent. Requires `--yes` or `ALLOW_DESTRUCTIVE=1`.
`setup`	First-run check. `--attach` connects every installed host CLI.
`doctor`	Check Node, tmux, state, and provider CLIs.
`web`	Start the loopback-only Web UI.
`providers`	List provider ids, aliases, models, and availability.
`approvals`	List pending approval requests.
`approve` / `deny`	Resolve one approval request.
`hosts`	Show which host CLIs have ReevesAgents attached.
`attach [cli]`	Connect the Agent Control MCP to one host CLI, or all installed hosts.
`detach <cli>`	Remove that MCP connection from one host CLI.
`skills [action]`	Install, remove, or inspect the ReevesAgents skill.
`mcp`	Start the MCP server over stdio. Host CLIs run this.
`config [key] [value]`	Show or update editable settings.
`presets`	List saved run presets.
`save-preset`	Save a live run as a preset.
`start-preset`	Start a run from a preset.
`delete-preset`	Delete a preset.
`delete`	Delete one ended agent record. Requires confirmation.
`delete-run`	Delete one ended run and archive it. Requires confirmation.
`history`	List archived runs.
`delete-history`	Delete one archived history record. Requires confirmation.
`reap`	End zombie agents and agents past `max_lifetime_ms`, and kill orphan tmux sessions no run record owns.

Common flags:

--json: available on script-facing list and action commands.
--name <name>: name a run.
--cwd <dir>: run agents from a directory.
--prompt <text>: paste startup text into each spawned agent.
--skip: skip provider permission prompts for unattended workers.
--run <run-id>: add agents to a specific run.
--port <n> and --no-open: Web UI startup options.

Agent Control

Agent Control is an optional MCP server. Attach it only to a CLI you trust to drive local tools:

reevesagents attach claude
reevesagents hosts

After restart, that CLI receives tools to spawn, read, send_text, send_key, interrupt, kill, stop, manage approvals, manage presets, and inspect hosts. The provider catalog is also exposed as reevesagents://providers.

In Claude Code you can install the connection and its operating instructions together as a plugin:

claude plugin marketplace add mertkayacs/reevesagents
claude plugin install reevesagents@reevesagents

The server is listed in the official MCP Registry as io.github.mertkayacs/reevesagents.

A gold-framed lead pane sending messages along gold threads to three other panes

Workers do not receive the MCP by default. If a worker should create its own workers, attach ReevesAgents to that worker's CLI explicitly.

Codex sandboxes MCP calls by default, which blocks tmux launches. When using Codex as the host that drives agents, run it with full access, for example codex --sandbox danger-full-access, or use a Codex profile that sets sandbox_mode = "danger-full-access".

Full tool reference: docs/mcp.md. Agent-facing operator guide: AGENTS.md.

Configuration

State lives under ~/.reeves:

~/.reeves/
  config.json
  presets/
  runs/
  history/

Two environment variables override the default paths:

REEVES_REGISTRY: state root override for runs/, history/, and presets/.
REEVES_CONFIG: config file path override.

One registry per tmux server: the background orphan sweep judges session ownership against the current registry, so two registries must not share one tmux server.

Anything that might contain a secret is scrubbed before it reaches a file.

Examples

Spread one project across multiple CLIs:

reevesagents spawn deepseek:backend claude-code:product codex:review \
  --name "feature x" \
  --prompt "Backend, product copy, and a review pass."

Watch one agent and then open its window:

reevesagents peek backend -n 40
reevesagents open backend

Stop the run when the work is done:

reevesagents stop "feature x" --yes

Web UI

reevesagents web

The Web UI binds to 127.0.0.1 only and runs in the foreground. Agents keep running after the page closes because they live in tmux.

The Web UI uses optional runtime modules, ws and @lydell/node-pty. npm installs them by default. CLI and TUI commands keep working without them, and reevesagents web explains what is missing.

To reach it from another machine, forward the loopback port over SSH:

ssh -L 8080:127.0.0.1:8080 user@host

Troubleshooting

tmux is not installed. Install tmux and run reevesagents doctor. The TUI auto-wraps itself in a tmux session named reeves; set REEVES_NO_TMUX_WRAPPER=1 to skip that behavior.

A provider CLI is missing or signed out. ReevesAgents launches provider CLIs that are already on PATH and authenticated. reevesagents doctor shows what is detected. If a launched window is waiting at login, peek shows it.

The Web UI reports missing packages. Reinstall with optional dependencies enabled, then run reevesagents doctor.

Port already in use. reevesagents web starts at 8080 by default. If it is taken, the server binds the next free port in a small range and prints the URL.

Contributing

Contributor docs live under docs/. Start with CONTRIBUTING.md, testing, and releasing.

End users do not need the development toolchain. Contributors use pnpm, TypeScript, tsup, Vitest, and ESLint from the repository.

Facts

Kind: MCP server
Repo: mertkayacs/reevesagents
Group: Uncategorized
Stars: 102
License: Apache-2.0
Language: TypeScript
Last push: 2026-10-10
Forks: 10
MCP Registry: io.github.mertkayacs/reevesagents
Homepage: reevesagents.mertkayacs.com
Topics: ai-agents, claude-code, codex, hermes-agent, kimi-cli, opencode, tui, webui, npm, multi-agent, cli, coding-agents, mcp, terminal, tmux, typescript