Deliberation
Ask Codex, Gemini, Grok, and 400+ OpenRouter models (Qwen, Kimi, DeepSeek) for second opinions or arbiter-mediated consensus. One MCP server for Claude Code, Co…
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No install snippet on purpose. A working MCP config is a command, its arguments and an environment block — the last two are where API keys live, so this catalogue never stores them and cannot publish them. Follow the link above for the authors' own instructions.
Get a second opinion in Claude Code from GPT, Gemini, and Grok - plus 400+ more models through OpenRouter, including Qwen, Kimi, and DeepSeek. Seven domain experts (Architect, Code Reviewer, Security Analyst, and four more) review your plans, find bugs, and debate edge cases until they agree.

Recent blog post: Meet Deliberation: 400+ models is easy, knowing which ones earn a place is hard.
📸 See a full /consensus run: round 1 disagreement to round 5 convergence

... a few moments later ...


📸 See /ask-all stage a 2-round architect debate: three models, three verdicts, then each critiques the others - disagreement matrix included

When three models argue, the real bug reveals itself. Round 1 = independent top findings. Round 2 = each model dunks on the others' picks. The disagreement matrix shows where they diverge; the conclusion shows what to actually fix first.
What is Deliberation?
Claude can ask GPT, Gemini, Grok, or any OpenAI-compatible model (via OpenRouter) for help through MCP. The plugin handles the wiring for each provider so you just write the prompt. Each expert has a distinct specialty and can advise or implement.
You can use any subset of the providers. The plugin detects which are configured and routes
accordingly. OpenRouter is advisory-only and config-driven: models are declared in
~/.config/deliberation/config.json (Windows: %APPDATA%\deliberation\config.json; override
with DELIBERATION_CONFIG) and hot-reload without restarting Claude Code.
| What you get | Why it matters |
|---|---|
| 7 domain experts | The right specialist for each problem type |
| GPT, Gemini, Grok, or OpenRouter models | Use your preferred provider(s) |
| Dual mode | Experts analyze (read-only) or implement (write) |
| Auto-routing | Claude detects when to delegate from your request |
| Synthesized responses | Claude interprets expert output, never raw passthrough |
Install
Claude Code plugin (recommended):
1. Add the marketplace - antonbabenko/agent-plugins
/plugin marketplace add antonbabenko/agent-plugins
2. Install the plugin
/plugin install deliberation@antonbabenko
3. Run setup
/deliberation:setup
Claude now routes complex tasks to your GPT, Gemini, Grok, and OpenRouter experts (GPT, Grok, and OpenRouter advise; only Gemini can also implement).
Setup is a one-time step. The MCP servers are registered by the plugin manifest, so they load automatically and stay current across updates.
Updating (Claude Code)
/plugin marketplace update antonbabenko # pull the new version from the marketplace
/reload-plugins # reconnect the MCP servers (or just restart Claude Code)
Updating on non-Claude hosts: hosts that run the standalone server via npx -y @antonbabenko/deliberation-mcp get the latest published version on each fresh resolve. npx
caches resolved packages, so if a host serves an old build, clear the npx cache
(rm -rf ~/.npm/_npx) or pin/refresh the version.
Alternative: Use deliberation MCP server (standalone, works with any agents)
From the project's README.