feat(cron): always post isolated summaries to main

docs/cron.md

@@ -76,7 +76,7 @@ Each job is a JSON object with stable keys (unknown keys ignored for forward com
   - `{"kind":"systemEvent","text":string}` (enqueue as `System:`)
   - `{"kind":"agentTurn","message":string,"deliver"?:boolean,"channel"?: "last"|"whatsapp"|"telegram","to"?:string,"timeoutSeconds"?:number}`
 - `isolation` (optional; only meaningful for isolated jobs)
-  - `{"postToMain": boolean, "postToMainPrefix"?: string}`
+  - `{"postToMain"?: boolean, "postToMainPrefix"?: string}`
 - `runtime` (optional)
   - `{"maxAttempts"?:number,"retryBackoffMs"?:number}` (best-effort retries; defaults off)
 - `state` (runtime-maintained)
@@ -174,8 +174,8 @@ When due:
   - `sessionKey = cron:<jobId>`
   - `sessionId = store[sessionKey].sessionId` (create if missing)
 - Optionally deliver output (`payload.deliver === true`) to the configured channel/to.
-- If `isolation.postToMain` is true, enqueue a summary system event to main, e.g.:
-  - `System: Cron "<name>" completed: <1-line summary>`
+- Isolated jobs always enqueue a summary system event to the main session when they finish (derived from the last agent text output).
+  - Prefix defaults to `Cron`, and can be customized via `isolation.postToMainPrefix`.
 
 ### “Run in parallel to main”
 

src/cli/cron-cli.ts

@@ -163,7 +163,11 @@ export function registerCronCli(program: Command) {
         "Do not fail the job if delivery fails",
         false,
       )
-      .option("--post-to-main", "Post a 1-line summary to main session", false)
+      .option(
+        "--post-to-main",
+        "Deprecated: isolated jobs always post a summary to main; use --post-prefix to customize",
+        false,
+      )
       .option(
         "--post-prefix <prefix>",
         "Prefix for summary system event",
@@ -343,7 +347,11 @@ export function registerCronCli(program: Command) {
         "Do not fail job if delivery fails",
         false,
       )
-      .option("--post-to-main", "Post a 1-line summary to main session", false)
+      .option(
+        "--post-to-main",
+        "Deprecated: isolated jobs always post a summary to main; use --post-prefix to customize",
+        false,
+      )
       .option("--post-prefix <prefix>", "Prefix for summary system event")
       .action(async (id, opts) => {
         try {

src/cron/isolated-agent.ts

@@ -43,8 +43,18 @@ function assertCommandReplyConfig(cfg: ClawdisConfig) {
 function pickSummaryFromOutput(text: string | undefined) {
   const clean = (text ?? "").trim();
   if (!clean) return undefined;
-  const oneLine = clean.replace(/\s+/g, " ");
-  return oneLine.length > 200 ? `${oneLine.slice(0, 200)}…` : oneLine;
+  const limit = 2000;
+  return clean.length > limit ? `${clean.slice(0, limit)}…` : clean;
+}
+
+function pickSummaryFromPayloads(
+  payloads: Array<{ text?: string | undefined }>,
+) {
+  for (let i = payloads.length - 1; i >= 0; i--) {
+    const summary = pickSummaryFromOutput(payloads[i]?.text);
+    if (summary) return summary;
+  }
+  return undefined;
 }
 
 function resolveDeliveryTarget(
@@ -247,7 +257,8 @@ export async function runCronIsolatedAgentTurn(params: {
 
   const payloads = runResult.payloads ?? [];
   const firstText = payloads[0]?.text ?? "";
-  const summary = pickSummaryFromOutput(firstText);
+  const summary =
+    pickSummaryFromPayloads(payloads) ?? pickSummaryFromOutput(firstText);
 
   if (delivery) {
     if (resolvedDelivery.channel === "whatsapp") {

src/cron/service.test.ts

@@ -104,7 +104,6 @@ describe("CronService", () => {
       sessionTarget: "isolated",
       wakeMode: "now",
       payload: { kind: "agentTurn", message: "do it", deliver: false },
-      isolation: { postToMain: true, postToMainPrefix: "Cron" },
     });
 
     vi.setSystemTime(new Date("2025-12-13T00:00:01.000Z"));

src/cron/service.ts

@@ -402,8 +402,8 @@ export class CronService {
         nextRunAtMs: job.state.nextRunAtMs,
       });
 
-      if (summary && job.isolation?.postToMain) {
-        const prefix = job.isolation.postToMainPrefix?.trim() || "Cron";
+      if (summary && job.sessionTarget === "isolated") {
+        const prefix = job.isolation?.postToMainPrefix?.trim() || "Cron";
         this.deps.enqueueSystemEvent(`${prefix}: ${summary}`);
         if (job.wakeMode === "now") {
           this.deps.requestReplyHeartbeatNow({ reason: `cron:${job.id}:post` });