Orellius Thinking

Structured reasoning MCP server with typed thoughts and persistence.

Website · GitHub

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What it does

Drop-in replacement for sequential-thinking MCP with typed thought categories, confidence scoring, branching from any point in a chain, and disk persistence. Gives AI agents a structured scratchpad for complex reasoning.

Install

npx orellius-thinking

Or globally:

npm install -g orellius-thinking

Quick start

Add to your MCP config:

{
  "mcpServers": {
    "thinking": {
      "command": "npx",
      "args": ["orellius-thinking"]
    }
  }
}

Features

• 9 typed thought categories (hypothesis, observation, critique, synthesis, etc.)
• Confidence scoring from 0.0 to 1.0 per thought
• Branch from any thought to explore alternative reasoning paths
• Revision tracking with full history
• Chain persistence to disk (~/.orellius-thinking/)
• Chain summaries for context compression

Tech stack

TypeScript, MCP SDK, Zod

License

MIT — Orellius Labs