injectOverviewInstructions() — mcp Function Reference

Architecture documentation for the injectOverviewInstructions() function in server.ts from the mcp codebase.

Function typescript McpServer InstructionManager calls 4 called by 1

Entity Profile

McpServer→ InstructionManager→ injectOverviewInstructions() — mcp Function Reference

Dependency Diagram

graph TD
  6cc13fa0_0ce9_926f_417f_6b3f50082f67["injectOverviewInstructions()"]
  08ca54b2_22bc_134f_e028_7c18da8dca8a["start()"]
  08ca54b2_22bc_134f_e028_7c18da8dca8a -->|calls| 6cc13fa0_0ce9_926f_417f_6b3f50082f67
  90d142ad_ab97_605e_ade9_a397841554ce["getTestHint()"]
  6cc13fa0_0ce9_926f_417f_6b3f50082f67 -->|calls| 90d142ad_ab97_605e_ade9_a397841554ce
  82b72c82_f107_1ece_5ba4_a66ed36389be["renderOverview()"]
  6cc13fa0_0ce9_926f_417f_6b3f50082f67 -->|calls| 82b72c82_f107_1ece_5ba4_a66ed36389be
  b8971bfc_ba3c_23a9_1f17_5d613ac67105["debug()"]
  6cc13fa0_0ce9_926f_417f_6b3f50082f67 -->|calls| b8971bfc_ba3c_23a9_1f17_5d613ac67105
  dfe11f52_4dd3_db89_9717_941d05bae091["warn()"]
  6cc13fa0_0ce9_926f_417f_6b3f50082f67 -->|calls| dfe11f52_4dd3_db89_9717_941d05bae091
  style 6cc13fa0_0ce9_926f_417f_6b3f50082f67 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/server.ts lines 288–308

  private injectOverviewInstructions(repoMap: Map<string, import('./cache/graph-cache').IndexedGraph>) {
    if (repoMap.size === 0) return;

    // Skip overview injection during experiments to isolate variables (except graphrag)
    if (process.env.SUPERMODEL_EXPERIMENT && process.env.SUPERMODEL_EXPERIMENT !== 'graphrag') return;

    // Only inject if there's exactly 1 unique graph (SWE-bench always has exactly 1 repo)
    const uniqueGraphs = new Set([...repoMap.values()]);
    if (uniqueGraphs.size !== 1) return;

    const graph = [...uniqueGraphs][0];
    try {
      const overview = renderOverview(graph);
      const testHint = this.getTestHint(graph.summary.primaryLanguage);
      const current = (this.server.server as any)._instructions as string | undefined;
      (this.server.server as any)._instructions = (current || '') + '\n\n' + overview + testHint;
      logger.debug('Injected overview into server instructions');
    } catch (err: any) {
      logger.warn('Failed to render overview for instructions:', err.message || err);
    }
  }