MCP Advanced Reasoning Server

Implementation Reference

• src/tools/reasoning-tools.ts:199-249 (handler)

  The async handler function that executes the hybrid_reasoning tool. It validates inputs, simulates hybrid transformer + MCTS reasoning by generating the next thought step, formats a JSON response with the reasoning state, and handles errors.

    async ({ prompt, thought, thoughtNumber, totalThoughts, nextThoughtNeeded, numSimulations }) => {
      try {
        // Validate parameters
        if (!prompt) {
          throw new ValidationError("Prompt is required");
        }
        
        if (!thought) {
          throw new ValidationError("Current thought is required");
        }
        
        // In a real implementation, this would connect to a hybrid transformer+MCTS system
        // For now, we'll simulate the reasoning process
        
        // Simulated next thought generation based on hybrid approach
        let nextThought = "";
        
        if (nextThoughtNeeded) {
          // Logic for generating next thought would go here
          // For now, we'll return a simple placeholder
          nextThought = `Hybrid Reasoning (Step ${thoughtNumber + 1}/${totalThoughts}): ` +
                        `Combining transformer analysis with ${numSimulations} MCTS simulations on "${thought.slice(0, 50)}...", ` +
                        `the enhanced analysis suggests... ` +
                        `[This would be actual Hybrid Transformer+MCTS reasoning content]`;
        }
        
        return {
          content: [
            {
              type: "text",
              text: JSON.stringify({
                strategy: "hybrid_transformer_mcts",
                originalPrompt: prompt,
                currentThought: thought,
                thoughtNumber: thoughtNumber,
                totalThoughts: totalThoughts,
                nextThought: nextThought,
                complete: !nextThoughtNeeded || thoughtNumber >= totalThoughts
              }, null, 2)
            }
          ]
        };
      } catch (error) {
        if (error instanceof ValidationError) {
          throw error;
        } else {
          throw new ReasoningError(`Hybrid reasoning failed: ${error instanceof Error ? error.message : String(error)}`);
        }
      }
    }
  );

• src/tools/reasoning-tools.ts:192-198 (schema)

  Zod input schema defining the parameters for the hybrid_reasoning tool, including prompt, current thought state, step counters, and MCTS simulation count.

    prompt: z.string().describe("The problem or query to reason about"),
    thought: z.string().describe("Current reasoning step"),
    thoughtNumber: z.number().int().min(1).describe("Current step number"),
    totalThoughts: z.number().int().min(1).describe("Total expected steps"),
    nextThoughtNeeded: z.boolean().describe("Whether another step is needed"),
    numSimulations: z.number().int().min(1).max(150).default(50).describe("Number of MCTS simulations to run")
  },

• src/tools/reasoning-tools.ts:190-249 (registration)

  Registration of the hybrid_reasoning tool on the MCP server within the registerReasoningTools function, including name, schema, and handler.

    "hybrid_reasoning",
    {
      prompt: z.string().describe("The problem or query to reason about"),
      thought: z.string().describe("Current reasoning step"),
      thoughtNumber: z.number().int().min(1).describe("Current step number"),
      totalThoughts: z.number().int().min(1).describe("Total expected steps"),
      nextThoughtNeeded: z.boolean().describe("Whether another step is needed"),
      numSimulations: z.number().int().min(1).max(150).default(50).describe("Number of MCTS simulations to run")
    },
    async ({ prompt, thought, thoughtNumber, totalThoughts, nextThoughtNeeded, numSimulations }) => {
      try {
        // Validate parameters
        if (!prompt) {
          throw new ValidationError("Prompt is required");
        }
        
        if (!thought) {
          throw new ValidationError("Current thought is required");
        }
        
        // In a real implementation, this would connect to a hybrid transformer+MCTS system
        // For now, we'll simulate the reasoning process
        
        // Simulated next thought generation based on hybrid approach
        let nextThought = "";
        
        if (nextThoughtNeeded) {
          // Logic for generating next thought would go here
          // For now, we'll return a simple placeholder
          nextThought = `Hybrid Reasoning (Step ${thoughtNumber + 1}/${totalThoughts}): ` +
                        `Combining transformer analysis with ${numSimulations} MCTS simulations on "${thought.slice(0, 50)}...", ` +
                        `the enhanced analysis suggests... ` +
                        `[This would be actual Hybrid Transformer+MCTS reasoning content]`;
        }
        
        return {
          content: [
            {
              type: "text",
              text: JSON.stringify({
                strategy: "hybrid_transformer_mcts",
                originalPrompt: prompt,
                currentThought: thought,
                thoughtNumber: thoughtNumber,
                totalThoughts: totalThoughts,
                nextThought: nextThought,
                complete: !nextThoughtNeeded || thoughtNumber >= totalThoughts
              }, null, 2)
            }
          ]
        };
      } catch (error) {
        if (error instanceof ValidationError) {
          throw error;
        } else {
          throw new ReasoningError(`Hybrid reasoning failed: ${error instanceof Error ? error.message : String(error)}`);
        }
      }
    }
  );