marketplace

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

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 |

# 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.

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

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

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.

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.

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

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

For complex decisions:

1. Reflect — Articulate the