set() — mcp Function Reference

Architecture documentation for the set() function in graph-cache.ts from the mcp codebase.

Function typescript GraphCache LruManagement calls 2 called by 6

Entity Profile

GraphCache→ LruManagement→ set() — mcp Function Reference

Dependency Diagram

graph TD
  4e1e5a38_002c_8f16_1767_0260a7001d5e["set()"]
  04799611_7360_96bd_a002_0c06de0b1d90["GraphCache"]
  4e1e5a38_002c_8f16_1767_0260a7001d5e -->|defined in| 04799611_7360_96bd_a002_0c06de0b1d90
  f20c71b7_2411_d98b_88ba_3ebc36bdd1f5["buildIndexes()"]
  f20c71b7_2411_d98b_88ba_3ebc36bdd1f5 -->|calls| 4e1e5a38_002c_8f16_1767_0260a7001d5e
  8e2a6102_97e1_76b1_c08e_d7b87f095026["loadCacheFromDisk()"]
  8e2a6102_97e1_76b1_c08e_d7b87f095026 -->|calls| 4e1e5a38_002c_8f16_1767_0260a7001d5e
  0c2dbb97_347e_7226_4d31_fbdcb85ac22b["resolveOrFetchGraph()"]
  0c2dbb97_347e_7226_4d31_fbdcb85ac22b -->|calls| 4e1e5a38_002c_8f16_1767_0260a7001d5e
  5f051fd3_b5fd_05fe_3e0b_f20364a0b064["precacheForDirectory()"]
  5f051fd3_b5fd_05fe_3e0b_f20364a0b064 -->|calls| 4e1e5a38_002c_8f16_1767_0260a7001d5e
  6471f5ca_fcb9_6e5d_af84_17b245dc7c0f["setupHandlers()"]
  6471f5ca_fcb9_6e5d_af84_17b245dc7c0f -->|calls| 4e1e5a38_002c_8f16_1767_0260a7001d5e
  88e2bfd3_c9cd_c8ac_4c2b_2911435fbb08["getKeyFilesForDomain()"]
  88e2bfd3_c9cd_c8ac_4c2b_2911435fbb08 -->|calls| 4e1e5a38_002c_8f16_1767_0260a7001d5e
  901790e8_bb47_a221_74f6_961092a7bb3f["evictStale()"]
  4e1e5a38_002c_8f16_1767_0260a7001d5e -->|calls| 901790e8_bb47_a221_74f6_961092a7bb3f
  aa12a27e_97dc_0771_0ad0_d1af55e1e15d["evictOldest()"]
  4e1e5a38_002c_8f16_1767_0260a7001d5e -->|calls| aa12a27e_97dc_0771_0ad0_d1af55e1e15d
  style 4e1e5a38_002c_8f16_1767_0260a7001d5e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

src/cache/graph-cache.ts lines 285–308

  set(cacheKey: string, graph: IndexedGraph): void {
    const nodeCount = graph.summary.nodeCount;

    // Evict stale entries first
    this.evictStale();

    // Evict if needed
    while (
      (this.cache.size >= this.maxGraphs || this.currentNodes + nodeCount > this.maxNodes) &&
      this.cache.size > 0
    ) {
      this.evictOldest();
    }

    // Store
    const now = Date.now();
    this.cache.set(cacheKey, {
      graph,
      nodeCount,
      lastAccessed: now,
      createdAt: now,
    });
    this.currentNodes += nodeCount;
  }