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mysti

VS Code extension that coordinates Claude Code, Codex and other coding agents

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Stars
1.2k
License
Apache-2.0
Last commit
Nov 2026
Last release
Nov 2026
Language
TypeScript

Missed the latest GitHub check; these facts may be older.

Overview

Mysti is a VS Code extension that puts several coding agents in one conversation. You address agents with @mentions to get independent answers, or chain them with "then" so one agent reviews another's finished work. It ships 16 provider adapters plus a coordinator, Brainstorm discussion modes, Canvas previews and checkpoints. It is still labelled beta.

Who it is for: Developers who use several coding-agent CLIs inside VS Code

Strengths

  • 16 provider adapters, including Claude Code, Codex, Gemini CLI, Copilot CLI, Ollama and OpenRouter
  • @mentions give parallel opinions; an explicit 'then' hands one agent's result to another
  • Context via file mentions, @problems diagnostics and @git changes
  • Brainstorm strategies: Quick, Debate, Red Team, Perspectives, Delphi

Weaknesses

  • Beta: native provider/account coverage and long-duration testing are incomplete
  • Ollama and LocalAI show tool proposals but do not execute them
  • Composer attachments are not forwarded to explicitly assigned collaborators
  • No model access included; each provider bills its own usage per agent

What it needs

  • no GPU
  • Needs VS Code 1.86+, At least one configured provider (Claude Code, Codex, Ollama, OpenRouter, etc.)
  • Models: Claude Code, OpenAI Codex, Gemini CLI, GitHub Copilot CLI, Cline

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