Actor-Critic Thinking MCP Server

Instructions

Implementation Reference

• index.ts:87-132 (handler)

  The core handler function that executes the actor-critic thinking tool logic: validates input, updates thought history and round state, formats the thought for logging, computes next state, and returns a structured JSON response.
  public processThought(input: unknown): { content: Array<{ type: string; text: string }>; isError?: boolean } { try { const validatedInput = this.validateThoughtData(input); this.thoughtHistory.push(validatedInput); // 更新当前轮次 this.currentRound = Math.ceil(validatedInput.thoughtNumber / 2); const formattedThought = this.formatThought(validatedInput); console.error(formattedThought); // 检查是否需要切换角色 const nextRole = validatedInput.role === 'actor' ? 'critic' : 'actor'; const isRoundComplete = validatedInput.thoughtNumber % 2 === 0; return { content: [{ type: "text", text: JSON.stringify({ thoughtNumber: validatedInput.thoughtNumber, totalThoughts: validatedInput.totalThoughts, currentRound: this.currentRound, currentRole: validatedInput.role, nextRole: nextRole, isRoundComplete: isRoundComplete, nextRoundNeeded: validatedInput.nextRoundNeeded, thoughtHistoryLength: this.thoughtHistory.length, actorThoughts: this.thoughtHistory.filter(t => t.role === 'actor').length, criticThoughts: this.thoughtHistory.filter(t => t.role === 'critic').length }, null, 2) }] }; } catch (error) { return { content: [{ type: "text", text: JSON.stringify({ error: error instanceof Error ? error.message : String(error), status: 'failed' }, null, 2) }], isError: true }; } }
• index.ts:135-212 (schema)

  Defines the MCP Tool object for 'actor-critic-thinking' including name, comprehensive usage description, and detailed input schema for validation.
  const ACTOR_CRITIC_THINKING_TOOL: Tool = { name: "actor-critic-thinking", description: `A sophisticated tool for dual-perspective performance analysis through actor-critic methodology. This tool enables comprehensive evaluation of performances, creative works, or decisions by embodying both the performer's mindset and the critic's analytical perspective. Each thought alternates between actor (creative/experiential) and critic (analytical/evaluative) viewpoints, creating a balanced assessment. When to use this tool: - Evaluating artistic performances, creative works, or strategic decisions - Analyzing the gap between intention and execution - Providing constructive feedback that considers both creative vision and technical execution - Reviewing complex scenarios that require both empathy and objectivity - Situations requiring balanced assessment of subjective and objective criteria - Performance reviews that need both self-reflection and external evaluation - Creative processes that benefit from iterative refinement Key features: - Alternates between actor (performer) and critic (evaluator) perspectives - Tracks rounds of dual-perspective analysis - Allows for multiple rounds of actor-critic dialogue - Balances empathetic understanding with objective analysis - Generates nuanced, multi-dimensional assessments - Provides actionable feedback for improvement Parameters explained: - content: Your current analysis content from the specified role perspective - role: Either "actor" (empathetic/creative viewpoint) or "critic" (analytical/evaluative viewpoint) - nextRoundNeeded: True if another round of actor-critic dialogue is needed - thoughtNumber: Current thought number in the sequence (increments with each thought) - totalThoughts: Total number of thoughts planned (must be odd and >= 3) Actor perspective should include: * Understanding intentions, creative choices, emotional context, challenges faced * Self-reflection on performance and decision-making process * Explanation of creative vision and goals Critic perspective should include: * Technical execution analysis, effectiveness evaluation * Audience impact assessment, comparative analysis * Objective feedback and improvement suggestions You should: 1. Start with either actor or critic perspective 2. Alternate between perspectives to maintain balance 3. Continue rounds until comprehensive analysis is achieved 4. Focus on relevant performance aspects 5. Generate balanced assessments that honor both perspectives 6. Provide constructive, actionable feedback 7. Only set nextRoundNeeded to false when analysis is complete`, inputSchema: { type: "object", properties: { content: { type: "string", description: "Your current analysis content from the specified role perspective" }, role: { type: "string", enum: ["actor", "critic"], description: "The perspective role: 'actor' for empathetic/creative viewpoint, 'critic' for analytical/evaluative viewpoint" }, nextRoundNeeded: { type: "boolean", description: "Whether another round of actor-critic dialogue is needed" }, thoughtNumber: { type: "integer", description: "Current thought number in the sequence", minimum: 1 }, totalThoughts: { type: "integer", description: "Total number of thoughts planned (must be odd and >= 3)", minimum: 3 } }, required: ["content", "role", "nextRoundNeeded", "thoughtNumber", "totalThoughts"] } };
• index.ts:228-230 (registration)

  Registers the 'actor-critic-thinking' tool in the MCP server's list of available tools via ListToolsRequestSchema handler.
  server.setRequestHandler(ListToolsRequestSchema, async () => ({ tools: [ACTOR_CRITIC_THINKING_TOOL], }));
• index.ts:232-244 (registration)

  Registers the request handler for CallToolRequestSchema, routing calls to 'actor-critic-thinking' to the processThought implementation.
  server.setRequestHandler(CallToolRequestSchema, async (request) => { if (request.params.name === "actor-critic-thinking") { return thinkingServer.processThought(request.params.arguments); } return { content: [{ type: "text", text: `Unknown tool: ${request.params.name}` }], isError: true }; });
• index.ts:25-56 (helper)

  Helper method for input validation according to the tool schema, enforcing types, ranges, and constraints before processing.
  private validateThoughtData(input: unknown): ActorCriticThoughtData { const data = input as Record<string, unknown>; if (!data.content || typeof data.content !== 'string') { throw new Error('Invalid content: must be a string'); } if (!data.role || (data.role !== 'actor' && data.role !== 'critic')) { throw new Error('Invalid role: must be either "actor" or "critic"'); } if (typeof data.nextRoundNeeded !== 'boolean') { throw new Error('Invalid nextRoundNeeded: must be a boolean'); } if (!data.thoughtNumber || typeof data.thoughtNumber !== 'number') { throw new Error('Invalid thoughtNumber: must be a number'); } if (!data.totalThoughts || typeof data.totalThoughts !== 'number') { throw new Error('Invalid totalThoughts: must be a number'); } if (data.totalThoughts < 3) { throw new Error('Invalid totalThoughts: must be >= 3'); } if (data.totalThoughts % 2 === 0) { throw new Error('Invalid totalThoughts: must be odd'); } return { content: data.content, role: data.role as 'actor' | 'critic', nextRoundNeeded: data.nextRoundNeeded, thoughtNumber: data.thoughtNumber, totalThoughts: data.totalThoughts, };