Open source · single Rust binary · Apache-2.0

The coding agent that ships a team.

cosh is a general-purpose coding agent for the terminal, written entirely in Rust. It edits code, runs commands and even operates desktop applications.

Its real difference is coordination: external agents like Claude Code, Codex and OpenCode run beside it, each with its own session and model, all orchestrated from your single prompt.

bash · Linux & macOS

curl -fsSL https://raw.githubusercontent.com/DiegoZaluski/co-sh/main/download.sh | bash

powershell · Windows

irm https://raw.githubusercontent.com/DiegoZaluski/co-sh/main/download.ps1 | iex

Or download the binary directly →

changelogview all →

v0.2.1
ACP: a goose pane no longer mixes old turns into a live one. Harnesses · that advertise `loadSession` without `sessionCapabilities.resume` (goose) · replay the retained conversation as ordinary `session/update` events
v0.2.0
Multi-agent orchestration under the cosh TUI: external ACP agents and · nested cosh agents working side by side with the main chat, addressed and · coordinated as one workspace.
v0.1.42026-10-05
Amazon Bedrock as a provider. The `bedrock` entry joins the connector's · OpenAI-compatible family through Amazon Bedrock's official OpenAI-compatible · endpoint on `bedrock-runtime`: streaming, native tool calling, reasoning
v0.1.32026-10-04
OAuth 2.0 device sign-in for the GitHub Copilot and Charm providers: sign · in from within the interface and the token lands in the OS keyring, ready · to use.
v0.1.22026-10-03
Free gateway with OAuth 2.0 sign-in. When a message fails for missing · credentials — or a provider key is broken, revoked or out of quota — cosh · offers its free gateway once, right in the session. Opting in runs the