mumo — VS Code extension

Multi-model responses + cross-model reactions. Want more rounds? Context carries automatically. Stop when you have what you need.

Claude, GPT, Gemini, Grok, Qwen, GLM, Kimi in parallel. For contested decisions — architecture, plan review, strategy — where a single model might be confidently wrong.

For Claude Code and Claude Cowork, see mumo-chat/mumo-mcp. For Cursor, see mumo-chat/mumo-cursor.

Copilot Chat in VS Code invokes mumo via MCP

Invoke mumo from Copilot Chat — the agent routes through MCP, convenes the panel, and returns the models' synthesis inside VS Code.

The mumo claim map — what every model agreed on, challenged, or flagged for deeper exploration

The claim map at mumo.chat — each contested statement plus every model's reaction (keep, challenge, explore, core, shift). Not a consensus answer; the structure underneath it.

A multi-round mumo session carrying context forward across rounds

Context carries forward automatically — add follow-up rounds until you have what you need, without re-pasting anything.

What's in the box

MCP server registration — wires https://mumo.chat/api/mcp into VS Code's MCP provider registry. Five tools: create_deliberation, append_round, get_session, list_sessions, list_models.
Native key storage — uses VS Code's SecretStorage (macOS Keychain / Windows Credential Manager / Linux libsecret). No MUMO_API_KEY env-var export required.
Commands — mumo: Set API Key (re-prompt), mumo: Open Recent Sessions (opens mumo.chat).

Install

ext install mumo.mumo-vscode

Or search mumo in the Extensions panel. On first use, VS Code will prompt for your mumo API key — create one at mumo.chat/settings/api-keys (keys start with mmo_live_).

Using the panel

In Copilot Chat (Agent mode), invoke mumo explicitly for reliable routing:

"Ask mumo about…"
"Run this by a mumo panel"
"Get me a second opinion from mumo on…"

See mumo.chat/mcp for the tool reference, the deliberation loop, and prompt patterns.

Why explicit invocation

The auto-triggering skill from the other mumo plugins (Claude Code, Cursor) isn't bundled here — VS Code's extension packaging story for SKILL.md is still unclear. What you get is reliable MCP tool access plus VS Code's native key management. The panel is available whenever you mention mumo in Agent chat.

Requirements

VS Code 1.101 or later (MCP extension API is stable as of this release)
An active mumo account — sign up at mumo.chat

License

MIT

mumo