Consilium Principis — Claude Code MCP server
Puts several advisors around your question, lets them argue, and hands you one next step. Their quotes get checked against the source texts.
Open on GitHubWhat Consilium Principis does
Consilium Principis plugs into your agent as an MCP server and a skill. You bring a decision you are stuck on, and it runs a session: each advisor reads the situation through a different lens and leans on its own texts. You end up with a synthesis and a single next action. When the question can be reduced to numbers, the board splits it into figures and runs a Monte Carlo.
The verification is the point. A line carrying a blue mark is matched by code against the corpus of the author it is credited to, word for word. Without such a line, the advisor will not pass it off as a quotation; it stays quiet instead. The advisors are AI versions built from public texts, not the thinkers themselves, and the project says so.
No separate API key is involved: it rides on the agent you already run, and that agent's model or provider may bill you on its own. Quote checking works without internet access. A fully offline setup calls for local models. Sessions land in council/ on your machine and stay out of git.
What it helps with
- break a hard choice into several viewpoints
- get one next step instead of generic advice
- confirm a quotation really appears in the source
- work out which of two options pays off
- see where the advisors disagree and where they agree
Example prompts for the agent
- Help me decide what to focus on — I'm juggling four directions at once.
- What would Marcus Aurelius say about this choice?
- Run the numbers: which is more worthwhile, option X or option Y?
How to install Consilium Principis
Install
The MCP registry has no launch command for it: see the repository README
Step by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about Consilium Principis
How do I install Consilium Principis in Claude Code?
Add the marketplace with /plugin marketplace add ilyautov/consilium-principis, then install the plugin: /plugin install consilium-principis@consilium-marketplace.
What does Consilium Principis do?
It convenes a board of AI advisors for your question and returns a synthesis plus one next step. Advisor quotations are checked against the source texts, and an advisor stays silent when nothing backs the line.
Does it need its own API key?
No. It runs on the agent you already have; any model or provider charges follow your host setup.
