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+# Task 06FTY8ZA45CCZZHQ7H44SMQG14
+
+B17 worker-owned continuity probe
+
+- Project: test-e2e
+- Source: b17-live-probe/b17-probe-20260729T182954Z
+- Priority: 0
+
+## Instructions
+
+This is a disposable two-stage continuity probe. Read the task state from the worktree. If b17-probe-marker.txt does not exist, create it containing exactly B17 worker continuity marker followed by a newline. Then write .orchestra-handoff-report.md containing ONLY these labelled lines:
+NEXT: Verify the B17 probe marker file contents.
+WHY: Verify canonical artifact construction.
+REMAINING: Run the verification then mark the task ready for worker delivery.
+DEAD ENDS: NONE
+OPEN Q: NONE
+LEARNED: NONE
+Do not create .orchestra/done during this first stage. If b17-probe-marker.txt already exists, verify it contains exactly the required marker, then create .orchestra/done. Do not modify TASK.md.
+
+## Acceptance criteria
+
+- The marker is created before the worker-owned release.
+- A successor verifies the marker and completes the task.
+
+## Completion
+
+Run the configured quality gate. When the task is ready for the worker to verify and deliver, create `.orchestra/done`. Do not write a prose completion report.
+
+This file is immutable for the lifetime of the task (§6.2) — its hash is
+carried in every handoff and re-verified on every pickup. Do not edit it.