Environment: Linux, isolated real development server; Web Chromium, 1280x800 CSS pixels, dark theme. Commit: 9cd7a04797184c92a8f636ae1e918f42c139d850 Synthetic Replay delegation fixture. All calls use the running server, no mocked services. Target: delegated child Before: {"title":"Delegated child","lineage":{"parentThreadId":"pin-evidence-parent","relationshipToParent":"subagent","rootThreadId":"pin-evidence-parent"},"pinnedAt":null,"settledAt":null,"snoozedUntil":null} Call: t3_thread_organize {"threadId":"thread:delegated-task:d0108990-3f8f-400c-a659-99fd81533f23","action":"pin"} Response: { "content": [ { "type": "text", "text": "{\"sequence\":123}" } ], "structuredContent": { "sequence": 123 }, "isError": false } Persisted thread after MCP call: {"title":"Delegated child","lineage":{"parentThreadId":"pin-evidence-parent","relationshipToParent":"subagent","rootThreadId":"pin-evidence-parent"},"pinnedAt":{"epochMilliseconds":1794348029670},"settledAt":null,"snoozedUntil":null} Target: side chat Before: {"title":"Side chat","lineage":{"parentThreadId":"pin-evidence-parent","relationshipToParent":"fork","rootThreadId":"pin-evidence-parent","sideChat":true},"pinnedAt":null,"settledAt":null,"snoozedUntil":null} Call: t3_thread_organize {"threadId":"pin-evidence-sidechat","action":"pin"} Response: { "content": [ { "type": "text", "text": "{\"sequence\":126}" } ], "structuredContent": { "sequence": 126 }, "isError": false } Persisted thread after MCP call: {"title":"Side chat","lineage":{"parentThreadId":"pin-evidence-parent","relationshipToParent":"fork","rootThreadId":"pin-evidence-parent","sideChat":true},"pinnedAt":{"epochMilliseconds":1794348031790},"settledAt":null,"snoozedUntil":null} Keyboard interaction on delegated child (separate recording): Ctrl+Shift+P Persisted thread after shortcut: {"title":"Delegated child","lineage":{"parentThreadId":"pin-evidence-parent","relationshipToParent":"subagent","rootThreadId":"pin-evidence-parent"},"pinnedAt":{"epochMilliseconds":1794347918144},"settledAt":null,"snoozedUntil":null}