round_2_context

Instructions

Implementation Reference

• src/tools/round2.ts:105-141 (handler)

  The main handler for the round_2_context tool. Reads all Round 1 plans, filters out the caller's own plan, and builds a Round 2 prompt with all other models' plans injected.

  export async function getRound2Context(
    projectRoot: string,
    identity: CallerIdentity
  ): Promise<{ prompt: string; error?: string }> {
    const config = await readConfig(projectRoot);
    if (!config) {
      return { prompt: "", error: "Project not initialized. Run `polyplan-mcp init` first." };
    }
  
    const round1Plans = await readPlansByRound(projectRoot, "round1");
  
    if (round1Plans.length < 2) {
      return {
        prompt: "",
        error: `Round 2 requires at least 2 Round 1 plans. Currently have ${round1Plans.length}.`,
      };
    }
  
    // Split into own plan and others
    const ownPlan = round1Plans.find(
      (p) => p.cliTool === identity.cliTool && p.modelName === identity.modelName
    );
    const otherPlans = round1Plans.filter(
      (p) => !(p.cliTool === identity.cliTool && p.modelName === identity.modelName)
    );
  
    const prompt = generateRound2Prompt(
      config.projectName,
      ownPlan?.content ?? null,
      otherPlans.map((p) => ({
        identifier: `${p.cliTool}-${p.modelName}`,
        content: p.content,
      }))
    );
  
    return { prompt };
  }

• src/server.ts:123-125 (schema)

  Input schema for round_2_context — accepts an optional modelName string parameter.

  {
    modelName: z.string().optional().describe("Your model name (e.g., 'sonnet4.6') — used to exclude your own Round 1 plan from the injected context"),
  },

• src/server.ts:119-133 (registration)

  Registration of the round_2_context tool on the MCP server with its name, description, input schema, and handler callback.

  // ─── round_2_context ──────────────────────────────────────────────
  server.tool(
    "round_2_context",
    "Get the Round 2 prompt with all other models' Round 1 plans injected — call this before generating your Round 2 plan",
    {
      modelName: z.string().optional().describe("Your model name (e.g., 'sonnet4.6') — used to exclude your own Round 1 plan from the injected context"),
    },
    async (params, extra) => {
      const identity = detectCaller(server.server.getClientVersion(), params.modelName);
      const result = await getRound2Context(projectRoot, identity);
  
      if (result.error) return { content: [{ type: "text", text: `❌ ${result.error}` }] };
      return { content: [{ type: "text", text: result.prompt }] };
    }
  );

• src/tools/round2.ts:23-52 (helper)

  Helper function that builds the Round 2 prompt string containing the project name, the caller's own Round 1 plan, and all other models' Round 1 plans with instructions for peer review.

  export function generateRound2Prompt(
    projectName: string,
    ownPlanContent: string | null,
    otherPlans: Array<{ identifier: string; content: string }>
  ): string {
    const ownSection = ownPlanContent
      ? `YOUR ROUND 1 PLAN:\n${ownPlanContent}`
      : "YOUR ROUND 1 PLAN:\n(No Round 1 plan found for this model — you are joining fresh in Round 2)";
  
    const othersSection = otherPlans
      .map((p) => `--- ${p.identifier} ---\n${p.content}`)
      .join("\n\n");
  
    return `You are participating in a multi-model planning session using PolyPlan.
  
  PROJECT: ${projectName}
  ROUND: 2 of 3 — Peer Review Master Plan
  
  ${ownSection}
  
  OTHER MODELS' ROUND 1 PLANS:
  ${othersSection}
  
  Your task:
  1. Review all other models' plans
  2. Note where you agree, disagree, or where they raised points you missed
  3. If another model answered a question you had, incorporate that answer
  4. Create your revised master plan informed by all the above
  5. Explicitly note: what you changed from Round 1 and why`;
  }