Prism MCP

Instructions

Implementation Reference

• src/tools/sessionMemoryHandlers.ts:1999-2019 (handler)

  Handler for the 'knowledge_upvote' tool which increases the importance score of a memory entry.

  export async function knowledgeUpvoteHandler(args: unknown) {
    if (!isKnowledgeVoteArgs(args)) {
      throw new Error("Invalid arguments for knowledge_upvote");
    }
  
    const storage = await getStorage();
    try {
      await storage.adjustImportance(args.id, 1, PRISM_USER_ID);
      debugLog(`[knowledge_upvote] Upvoted entry ${args.id}`);
      return {
        content: [{ type: "text", text: `👍 Entry ${args.id} upvoted (+1 importance).` }],
        isError: false,
      };
    } catch (err) {
      const msg = err instanceof Error ? err.message : String(err);
      return {
        content: [{ type: "text", text: `❌ Failed to upvote entry ${args.id}: ${msg}` }],
        isError: true,
      };
    }
  }

• src/tools/sessionMemoryDefinitions.ts:944-960 (schema)

  Definition/schema for the 'knowledge_upvote' tool.

  export const KNOWLEDGE_UPVOTE_TOOL: Tool = {
    name: "knowledge_upvote",
    description:
      "Upvote a memory entry to increase its importance (graduation). " +
      "Entries with importance >= 7 become 'graduated' insights that always " +
      "surface in behavioral warnings.",
    inputSchema: {
      type: "object",
      properties: {
        id: {
          type: "string",
          description: "The UUID of the ledger entry to upvote.",
        },
      },
      required: ["id"],
    },
  };

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

  Tool registration for KNOWLEDGE_UPVOTE_TOOL in server.ts.

  KNOWLEDGE_UPVOTE_TOOL,