reasoning-services

Reasoning.Services — Claude Code Plugin

Structured reasoning tools for AI workflows. Isolated cognitive sessions that don't pollute your context or reinforce your biases.

What You Get

4 MCP servers, installed with two commands:

Tool	What it does
Structured Reflection	Work through complex logic in an isolated session
Decision Matrix	Systematic comparison against weighted criteria
Context Switcher	Parallel perspectives from multiple stakeholders/roles
Sequential Thinking	Linear reasoning with confidence tracking and contradiction detection

Install

# 1. Add this marketplace (once)
/plugin marketplace add reasoning-services/marketplace

# 2. Install the plugin
/plugin install reasoning-services@reasoning-services-marketplace

Restart Claude Code. All 4 servers appear in /mcp.

Authentication

All tools require a subscription. Sign up at reasoning.services.

After subscribing, Claude Code will prompt for OAuth credentials on first tool use.

Tools in Detail

Structured Reflection (structured-reflection)

Use when thinking feels muddy, you're stuck, or you need to articulate a problem to force clarity. Runs in a separate session — won't pollute your main conversation context.

Decision Matrix (decision-matrix)

Use when you have multiple viable options with real trade-offs. Define criteria, weight them, score each option. Returns structured scoring you can act on.

Context Switcher (context-switcher)

Use when a decision affects multiple stakeholders or you need to surface blind spots. Runs the same question from different roles/perspectives in parallel.

Sequential Thinking (sequential-thinking)

Use when a problem requires explicit step-by-step reasoning. Tracks confidence per step, maps dependencies between steps, detects contradictions.

Chaining Pattern

For complex decisions:

1. Reflect — Articulate the actual problem (Structured Reflection)
2. Explore — Surface blind spots (Context Switcher)
3. Decide — Systematic evaluation (Decision Matrix)

Support

• Documentation: reasoning.services
• Issues: github.com/reasoning-services/marketplace
• Contact: contact@reasoning.services

License

MIT