Add post hooks for cleanup (#193)

* Add post hooks for cleanup

* Switch to signal-based cleanup

* Better exit handling

agents/shared.ts

@@ -33,14 +33,11 @@ export const agent = <const input extends AgentInput>(input: input): defineAgent
       const search = ctx.payload.search;
       const write = ctx.payload.write;
       log.info(`» running ${input.name} with effort=${ctx.payload.effort}...`);
-      // build log box content: eventInstructions (if any) + user request (if any) + event data
-      const logParts = [
-        ctx.instructions.eventInstructions
-          ? `EVENT-LEVEL INSTRUCTIONS:\n${ctx.instructions.eventInstructions}`
-          : null,
-        ctx.instructions.user ? `USER REQUEST:\n${ctx.instructions.user}` : null,
-        ctx.instructions.event,
-      ].filter(Boolean);
+      // build log box content: user prompt first, then event data with eventInstructions as property
+      const eventWithInstructions = ctx.instructions.eventInstructions
+        ? `additionalInstructions: ${ctx.instructions.eventInstructions}\n${ctx.instructions.event}`
+        : ctx.instructions.event;
+      const logParts = [ctx.instructions.user, eventWithInstructions].filter(Boolean);
       log.box(logParts.join("\n\n---\n\n"), {
         title: "Instructions",
       });