fix(analysis): report call-edge truncation

src/application/CallPathTracing.ts

@@ -181,7 +181,11 @@ const recordEdge = (
   const targetAddress =
     input.direction === "forward" ? edge.relatedAddress : edge.address;
   const edgeKey = `${sourceAddress}\u0000${targetAddress}`;
-  if (state.edges.has(edgeKey) || state.edges.size >= input.max_nodes) return;
+  if (state.edges.has(edgeKey)) return;
+  if (state.edges.size >= input.max_nodes) {
+    state.residual.add("Call-path traversal reached the edge limit.");
+    return;
+  }
   state.edges.set(edgeKey, {
     source_address: sourceAddress,
     target_address: targetAddress,

tests/enhancedTools.test.ts

@@ -318,7 +318,10 @@ describe("enhanced MCP tools", () => {
         nodes: [{ address: "0x1", depth: 0 }],
         frontier: ["0x2"],
         truncated: true,
-        residual_unknowns: [expect.stringContaining("reached the node limit")],
+        residual_unknowns: expect.arrayContaining([
+          expect.stringContaining("reached the node limit"),
+          expect.stringContaining("reached the edge limit"),
+        ]),
         limits: {
           max_nodes: 1,
           nodes_visited: 1,