fix tool execute after hook boundary

src/plugin/tool-execute-after.test.ts

@@ -92,7 +92,6 @@ describe("createToolExecuteAfterHandler", () => {
     expect(output.title).toBe("stored title")
     expect(output.metadata).toEqual({ sessionId: "ses_native", agent: "hephaestus" })
   })
-
   it("#given native session linkage without model #when stored metadata exists #then required task metadata is preserved", async () => {
     // given
     const model = { providerID: "openai", modelID: "gpt-5.5" }
@@ -122,4 +121,29 @@ describe("createToolExecuteAfterHandler", () => {
     expect(output.title).toBe("stored title")
     expect(output.metadata).toEqual({ sessionId: "ses_native", agent: "hephaestus", model })
   })
+
+  it("#given a non-extract hook throws #when tool.execute.after runs #then the handler absorbs the failure", async () => {
+    // given
+    const handler = createToolExecuteAfterHandler({
+      ctx: { directory: "/repo" } as never,
+      hooks: {
+        directoryAgentsInjector: {
+          "tool.execute.after": async () => {
+            throw new TypeError("output output is undefined")
+          },
+        },
+      } as never,
+    })
+
+    const output = { title: "result", output: "read output", metadata: {} }
+
+    // when
+    await handler(
+      { tool: "read", sessionID: "ses_parent", callID: "call_read" },
+      output
+    )
+
+    // then
+    expect(output).toEqual({ title: "result", output: "read output", metadata: {} })
+  })
 })

src/plugin/tool-execute-after.ts

@@ -182,6 +182,15 @@ export function createToolExecuteAfterHandler(args: {
       return
     }
 
-    await runToolExecuteAfterHooks()
+    try {
+      await runToolExecuteAfterHooks()
+    } catch (error) {
+      log("[tool-execute-after] Failed to process hooks", {
+        tool: input.tool,
+        sessionID: input.sessionID,
+        callID: input.callID ?? input.callId ?? input.call_id,
+        error,
+      })
+    }
   }
 }