Method edgeLabel

src/mcp/tools.ts:4846–4853

* Relationship label for a non-`calls` edge in callers/callees lists. A * function-as-value edge (#756) is the high-signal one: `callers(cb)` * showing "via callback registration" tells the agent this is where the * callback is WIRED, not where it's invoked.

(edge: Edge)

   * callback is WIRED, not where it's invoked.
   */
  private edgeLabel(edge: Edge): string | null {
    if (edge.kind === 'calls') return null;
    if (edge.metadata?.fnRef === true) return 'callback registration';
    if (edge.kind === 'instantiates') return 'instantiation';
    if (edge.kind === 'imports') return 'import';
    if (edge.kind === 'references') return 'reference';
    return edge.kind;
  }

  private formatImpact(symbol: string, impact: Subgraph): string {
    const nodeCount = impact.nodes.size;