deep-thinker
Advanced cognitive thinking MCP server with DAG-based thought graph, 10 reasoning strategies (including auto-selection), 17 tools, node aliases, session persistence, structured responses, and intelligent error handling.
A significant evolution beyond sequential-thinking MCP, providing structured deep reasoning with graph-based thought management, schema validation, and intelligent strategy selection.
Quick Start
npx deep-thinker{
"mcpServers": {
"deep-thinker": {
"command": "npx",
"args": ["-y", "deep-thinker"]
}
}
}Examples
| Example | Strategy | Use Case |
|---|---|---|
| Architecture Decision | Dialectic + Parallel | Monolith vs microservices |
| Debugging Incident | Abductive | Production 500 errors |
| Feature Prioritization | Parallel + Dialectic | Q3 roadmap planning |
| Scientific Hypothesis | Analogical + Abductive | LNP delivery for CRISPR |
| Breaking Dead Ends | Metacognitive switch | Serverless cost analysis |
Features
- DAG-Based Thought Graph — Thoughts form a directed acyclic graph with branching, merging, and cross-edges (not just a linear chain)
- 10 Reasoning Strategies — Sequential, Dialectic (thesis→antithesis→synthesis), Parallel, Analogical, Abductive, First Principles (deconstruct to fundamentals), Counterfactual (what-if with ripple effects), Systems Thinking (feedback loops & leverage points), MCTS (Monte Carlo optimization), Auto (intelligent auto-selection based on content and graph state)
- Node Aliases — Use
"last","best","root"instead of cryptic node IDs for any nodeId parameter - Structured Responses — All tool responses return consistent
MCPResponseJSON withstatus,summary,confidence,nextSuggestedaction - Session Persistence — Auto-saves thought graph to
~/.deep-thinker/sessions/; resume across MCP restarts withreset({ resume: "name" }) - Friendly Error Messages — Zod validation errors translated to human-readable hints (e.g.,
"confidence 0 ile 1 arasında...") - Confidence Scoring — Multi-factor confidence evaluation with support/contradiction analysis, depth penalties, and knowledge integration boosts
- Self-Critique — Automatic critique generation with severity levels and confidence adjustments
- Metacognitive Engine — Detects stuck states, stagnation, declining confidence; suggests strategy switches and corrective actions
- Knowledge Integration — Attach external knowledge to thoughts, detect gaps, validate consistency across sources
- Thought Pruning — Dead-end detection, redundancy removal, deep unproductive branch elimination, path optimization
- help Tool — Discover all 17 tools grouped by category (core/advanced/workflow) with quick-start examples
- conclude Tool — Comprehensive graph summary with primaryFinding, actionItems, graphHealth, and nextSuggested
- High-IQ Reasoning Enhancements — 8 advanced tools: visualization, devil's advocate, cross-disciplinary synthesis, temporal projection, ethical evaluation, emotional intelligence analysis, decision explanation, social impact analysis
- Emotional Intelligence — Analyze emotional tone, empathy, persuasion effectiveness, stakeholder emotions
- Ethical Frameworks — Evaluate through deontological, consequentialist, virtue ethics, rights-based perspectives
- Cross-Domain Synthesis — Combine insights from biology, economics, physics, psychology, computer science, art
- Temporal Reasoning — Project thoughts into future/past scenarios with optimistic, pessimistic, realistic, disruptive scenarios
- Social Impact Modeling — Analyze stakeholder emotions, group cohesion, persuasion effectiveness, ethical alignment
- Uncertainty Quantification — Confidence intervals, probability distributions, sensitivity analysis for robust decisions
- Multi-Language Support — Thoughts in English, Turkish, German, French, Spanish, Japanese, Chinese, Russian
- Meta-Cognitive Layers — Recursive reasoning across 5 levels of meta-cognition
- PromptOptimizer (Node Zero) — Entry point that transforms vague prompts into optimized Super Prompts with automatic strategy routing
