# R14 — Overdue real dialog recovery

Environment: fs-50; Linux 6.8.0-117-generic x86_64; Node v26.12.1; Playwright 1.60.0; Chrome Headless Shell 157.0.8103.38; isolated dev:server, T3CODE_DEV_SEED=0, fresh per-checkout SQLite; synthetic Fx fixture; RPC/MCP over loopback; UTC timestamps.

Scripted interaction (same inputs on both revisions; generated ids differ): Pre-attach an interactive viewer, start recording, trigger a real confirm inside appearance; after timeout call status, reuse-open, stop, observer reads, take/release human control, accept dialog, evaluate, stop and close.

What differed: Status exposes the pending confirm; dialog accept bypasses the held queue and fresh actions resume. Pending recordingStop times out before; after it is refused as dialogPending.

## C3 steps and timestamps

Before step times (UTC):

```jsonl
{"time":"2026-11-10T11:33:56.080Z","tool":"preview_open","caller":0,"args":{"reuseExistingTab":false,"open":false}}
{"time":"2026-11-10T11:33:56.218Z","tool":"preview_recording_start","caller":0,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480"}}
{"time":"2026-11-10T11:33:57.904Z","tool":"preview_set_appearance","caller":0,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","colorScheme":"dark"}}
{"time":"2026-11-10T11:34:15.428Z","tool":"preview_status","caller":0,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480"}}
{"time":"2026-11-10T11:34:15.439Z","tool":"preview_open","caller":0,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","reuseExistingTab":true,"open":false}}
{"time":"2026-11-10T11:34:15.439Z","tool":"preview_recording_stop","caller":0,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480"}}
{"time":"2026-11-10T11:34:15.439Z","tool":"preview_evaluate","caller":2,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","expression":"\"foreign\""}}
{"time":"2026-11-10T11:34:15.440Z","tool":"preview_snapshot","caller":2,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480"}}
{"time":"2026-11-10T11:34:15.440Z","tool":"preview_wait_for","caller":2,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","selector":"body","timeoutMs":1000}}
{"time":"2026-11-10T11:36:18.094Z","tool":"preview_evaluate","caller":0,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","expression":"\"human owner retry\""}}
{"time":"2026-11-10T11:36:18.113Z","tool":"preview_recording_stop","caller":0,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480"}}
{"time":"2026-11-10T11:36:18.134Z","tool":"preview_evaluate","caller":2,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","expression":"\"foreign while human/dialog\""}}
{"time":"2026-11-10T11:36:18.247Z","tool":"preview_dialog","caller":0,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","accept":true}}
{"time":"2026-11-10T11:36:18.574Z","tool":"preview_evaluate","caller":0,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","expression":"document.body.dataset.probe=\"ok\"; \"ok\""}}
{"time":"2026-11-10T11:36:18.598Z","tool":"preview_recording_stop","caller":0,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480"}}
{"time":"2026-11-10T11:36:18.816Z","tool":"t3_preview_close","caller":0,"args":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480"}}
```

After step times (UTC):

```jsonl
{"time":"2026-11-10T11:33:55.565Z","tool":"preview_open","caller":0,"args":{"reuseExistingTab":false,"open":false}}
{"time":"2026-11-10T11:33:55.836Z","tool":"preview_recording_start","caller":0,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406"}}
{"time":"2026-11-10T11:33:58.000Z","tool":"preview_set_appearance","caller":0,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","colorScheme":"dark"}}
{"time":"2026-11-10T11:34:15.023Z","tool":"preview_status","caller":0,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406"}}
{"time":"2026-11-10T11:34:15.037Z","tool":"preview_open","caller":0,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","reuseExistingTab":true,"open":false}}
{"time":"2026-11-10T11:34:15.039Z","tool":"preview_recording_stop","caller":0,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406"}}
{"time":"2026-11-10T11:34:15.039Z","tool":"preview_evaluate","caller":2,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","expression":"\"foreign\""}}
{"time":"2026-11-10T11:34:15.039Z","tool":"preview_snapshot","caller":2,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406"}}
{"time":"2026-11-10T11:34:15.042Z","tool":"preview_wait_for","caller":2,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","selector":"body","timeoutMs":1000}}
{"time":"2026-11-10T11:34:16.684Z","tool":"preview_evaluate","caller":0,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","expression":"\"human owner retry\""}}
{"time":"2026-11-10T11:34:16.708Z","tool":"preview_recording_stop","caller":0,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406"}}
{"time":"2026-11-10T11:34:16.728Z","tool":"preview_evaluate","caller":2,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","expression":"\"foreign while human/dialog\""}}
{"time":"2026-11-10T11:34:16.846Z","tool":"preview_dialog","caller":0,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","accept":true}}
{"time":"2026-11-10T11:34:17.186Z","tool":"preview_evaluate","caller":0,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","expression":"document.body.dataset.probe=\"ok\"; \"ok\""}}
{"time":"2026-11-10T11:34:17.208Z","tool":"preview_recording_stop","caller":0,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406"}}
{"time":"2026-11-10T11:34:17.350Z","tool":"t3_preview_close","caller":0,"args":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406"}}
```

<a id="before"></a>
## Before — C3

SHA: [fa2f4ff2a2](https://github.com/pingdotgg/t3code/commit/fa2f4ff2a2bac5ac92e07749f6b83b0003d642a0)

Agent-visible results (status/list fields selected; error text verbatim):

```jsonl
{"time":"2026-11-10T11:33:56.217Z","tool":"preview_open","caller":0,"result":{"isError":false,"selectedStatusFields":{"available":true,"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","url":null,"loading":false,"control":{"owner":"agent","ownedByCaller":true,"generation":0},"dialog":null,"viewportSetting":{"_tag":"fill"},"viewport":{"width":1280,"height":800},"tabs":[{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","owner":"agent","ownedByCaller":true}]}}}
{"time":"2026-11-10T11:33:57.810Z","tool":"preview_recording_start","caller":0,"result":{"isError":false,"structuredContent":{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","recording":true,"startedAt":"2026-11-10T11:33:57.803Z"}}}
{"time":"2026-11-10T11:34:13.925Z","tool":"preview_set_appearance","caller":0,"result":{"content":[{"type":"text","text":"Preview automation setColorScheme timed out after 15000ms."}],"isError":true}}
{"time":"2026-11-10T11:34:15.438Z","tool":"preview_status","caller":0,"result":{"isError":false,"selectedStatusFields":{"available":true,"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","url":null,"loading":false,"control":{"owner":"agent","ownedByCaller":true,"generation":0},"dialog":{"type":"confirm","message":"Synthetic overdue dialog","defaultValue":""},"viewportSetting":{"_tag":"fill"},"viewport":{"width":1280,"height":800},"tabs":[{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","owner":"agent","ownedByCaller":true}]}}}
{"time":"2026-11-10T11:34:15.481Z","tool":"preview_open","caller":0,"result":{"content":[{"type":"text","text":"A browser dialog is pending. Read preview_status and resolve it with preview_dialog."}],"isError":true}}
{"time":"2026-11-10T11:36:16.482Z","tool":"preview_recording_stop","caller":0,"result":{"content":[{"type":"text","text":"Preview automation recordingStop timed out after 120000ms."}],"isError":true}}
{"time":"2026-11-10T11:34:15.481Z","tool":"preview_evaluate","caller":2,"result":{"content":[{"type":"text","text":"This browser tab belongs to another agent session or a human. Open your own tab."}],"isError":true}}
{"time":"2026-11-10T11:34:15.467Z","tool":"preview_snapshot","caller":2,"result":{"content":[{"type":"text","text":"Preview snapshot failed: A browser dialog is pending. Read preview_status and resolve it with preview_dialog."}],"structuredContent":{"error":{"_tag":"PreviewAutomationControlInterruptedError","operation":"snapshot","failureCount":1,"message":"A browser dialog is pending. Read preview_status and resolve it with preview_dialog."}},"isError":true}}
{"time":"2026-11-10T11:34:15.469Z","tool":"preview_wait_for","caller":2,"result":{"content":[{"type":"text","text":"A browser dialog is pending. Read preview_status and resolve it with preview_dialog."}],"isError":true}}
{"time":"2026-11-10T11:36:18.112Z","tool":"preview_evaluate","caller":0,"result":{"content":[{"type":"text","text":"A human controls this browser tab. Wait until they release control."}],"isError":true}}
{"time":"2026-11-10T11:36:18.133Z","tool":"preview_recording_stop","caller":0,"result":{"content":[{"type":"text","text":"A human controls this browser tab. Wait until they release control."}],"isError":true}}
{"time":"2026-11-10T11:36:18.146Z","tool":"preview_evaluate","caller":2,"result":{"content":[{"type":"text","text":"This browser tab belongs to another agent session or a human. Open your own tab."}],"isError":true}}
{"time":"2026-11-10T11:36:18.274Z","tool":"preview_dialog","caller":0,"result":{"isError":false,"selectedStatusFields":{"available":true,"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","url":null,"loading":false,"control":{"owner":"agent","ownedByCaller":true,"generation":2},"dialog":null,"viewportSetting":{"_tag":"fill"},"viewport":{"width":1280,"height":800},"tabs":[{"tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","owner":"agent","ownedByCaller":true}]}}}
{"time":"2026-11-10T11:36:18.598Z","tool":"preview_evaluate","caller":0,"result":{"isError":false,"structuredContent":{"value":"ok"}}}
{"time":"2026-11-10T11:36:18.815Z","tool":"preview_recording_stop","caller":0,"result":{"isError":false,"structuredContent":{"id":"f41bc889-9c75-40ee-b7a0-6866bd924e3e-f2ededdd-29e3-4f5d-a5e7-00f359f20907-mp4","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","path":"/home/user/wt/pr-32866-cap-before/.t3/userdata/attachments/f41bc889-9c75-40ee-b7a0-6866bd924e3e-f2ededdd-29e3-4f5d-a5e7-00f359f20907-mp4.mp4","mimeType":"video/mp4","sizeBytes":32320,"createdAt":"2026-11-10T11:36:18.801Z"}}}
{"time":"2026-11-10T11:36:18.836Z","tool":"t3_preview_close","caller":0,"result":{"isError":false,"structuredContent":{}}}
```

Relevant server milestones:

```jsonl
{"time":"2026-11-10T11:33:31.443Z","event":"host.connected","connectionId":"c9837c85-e742-42f3-8ee0-9a6034906f74"}
{"time":"2026-11-10T11:33:56.092Z","event":"request.start","operation":"open","requestId":"preview-92","tabId":"tab_a_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":660000,"connectionId":"c9837c85-e742-42f3-8ee0-9a6034906f74"}
{"time":"2026-11-10T11:33:56.198Z","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","event":"tab.created","detail":{"desktop":false,"isolatedContext":true}}
{"time":"2026-11-10T11:33:56.230Z","event":"request.start","operation":"recordingStart","requestId":"preview-93","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":15000,"connectionId":"c9837c85-e742-42f3-8ee0-9a6034906f74"}
{"time":"2026-11-10T11:33:57.920Z","event":"request.start","operation":"setColorScheme","requestId":"preview-95","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":15000,"connectionId":"c9837c85-e742-42f3-8ee0-9a6034906f74"}
{"time":"2026-11-10T11:33:57.920Z","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","event":"emulateMedia.start","detail":[{"colorScheme":"dark"}]}
{"time":"2026-11-10T11:34:14.923Z","event":"host.connected","connectionId":"2ec85815-d1bb-44dd-8f96-e22608c1393d"}
{"time":"2026-11-10T11:34:15.434Z","event":"request.start","operation":"status","requestId":"preview-96","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":15000,"connectionId":"2ec85815-d1bb-44dd-8f96-e22608c1393d"}
{"time":"2026-11-10T11:34:15.461Z","event":"request.start","operation":"snapshot","requestId":"preview-97","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":15000,"connectionId":"2ec85815-d1bb-44dd-8f96-e22608c1393d"}
{"time":"2026-11-10T11:34:15.462Z","event":"request.start","operation":"waitFor","requestId":"preview-98","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":1000,"connectionId":"2ec85815-d1bb-44dd-8f96-e22608c1393d"}
{"time":"2026-11-10T11:34:15.473Z","event":"request.start","operation":"open","requestId":"preview-99","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":660000,"connectionId":"2ec85815-d1bb-44dd-8f96-e22608c1393d"}
{"time":"2026-11-10T11:34:15.476Z","event":"request.start","operation":"recordingStop","requestId":"preview-100","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":120000,"connectionId":"2ec85815-d1bb-44dd-8f96-e22608c1393d"}
{"time":"2026-11-10T11:34:15.476Z","event":"request.start","operation":"evaluate","requestId":"preview-101","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":15000,"connectionId":"2ec85815-d1bb-44dd-8f96-e22608c1393d"}
{"time":"2026-11-10T11:36:17.480Z","event":"host.connected","connectionId":"a2081acc-a298-4cfd-9325-25a29388bdc3"}
{"time":"2026-11-10T11:36:18.108Z","event":"request.start","operation":"evaluate","requestId":"preview-102","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":15000,"connectionId":"a2081acc-a298-4cfd-9325-25a29388bdc3"}
{"time":"2026-11-10T11:36:18.129Z","event":"request.start","operation":"recordingStop","requestId":"preview-103","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":120000,"connectionId":"a2081acc-a298-4cfd-9325-25a29388bdc3"}
{"time":"2026-11-10T11:36:18.144Z","event":"request.start","operation":"evaluate","requestId":"preview-104","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":15000,"connectionId":"a2081acc-a298-4cfd-9325-25a29388bdc3"}
{"time":"2026-11-10T11:36:18.260Z","event":"request.start","operation":"dialog","requestId":"preview-105","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":15000,"connectionId":"a2081acc-a298-4cfd-9325-25a29388bdc3"}
{"time":"2026-11-10T11:36:18.271Z","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","event":"emulateMedia.end","detail":{}}
{"time":"2026-11-10T11:36:18.589Z","event":"request.start","operation":"evaluate","requestId":"preview-107","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":15000,"connectionId":"a2081acc-a298-4cfd-9325-25a29388bdc3"}
{"time":"2026-11-10T11:36:18.612Z","event":"request.start","operation":"recordingStop","requestId":"preview-109","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":120000,"connectionId":"a2081acc-a298-4cfd-9325-25a29388bdc3"}
{"time":"2026-11-10T11:36:18.679Z","event":"recording.stop.start","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480"}
{"time":"2026-11-10T11:36:18.800Z","event":"recording.encoder.closed","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480"}
{"time":"2026-11-10T11:36:18.829Z","event":"request.start","operation":"close","requestId":"preview-111","tabId":"tab_b_bea12b60-c14f-4580-bb58-2b38123bd480","timeoutMs":15000,"connectionId":"a2081acc-a298-4cfd-9325-25a29388bdc3"}
```

<a id="after"></a>
## After — C3

SHA: [b088b88d19](https://github.com/pingdotgg/t3code/commit/b088b88d19fb0edc43f754da2e1d199bda70d6d8)

Agent-visible results (status/list fields selected; error text verbatim):

```jsonl
{"time":"2026-11-10T11:33:55.835Z","tool":"preview_open","caller":0,"result":{"isError":false,"selectedStatusFields":{"available":true,"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","url":null,"loading":false,"control":{"owner":"agent","ownedByCaller":true,"generation":0},"dialog":null,"viewportSetting":{"_tag":"fill"},"viewport":{"width":1280,"height":800},"tabs":[{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","owner":"agent","ownedByCaller":true}]}}}
{"time":"2026-11-10T11:33:57.863Z","tool":"preview_recording_start","caller":0,"result":{"isError":false,"structuredContent":{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","recording":true,"startedAt":"2026-11-10T11:33:57.851Z"}}}
{"time":"2026-11-10T11:34:13.521Z","tool":"preview_set_appearance","caller":0,"result":{"content":[{"type":"text","text":"Preview automation setColorScheme timed out after 15000ms."}],"isError":true}}
{"time":"2026-11-10T11:34:15.036Z","tool":"preview_status","caller":0,"result":{"isError":false,"selectedStatusFields":{"available":true,"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","url":null,"loading":false,"control":{"owner":"agent","ownedByCaller":true,"generation":0},"dialog":{"type":"confirm","message":"Synthetic overdue dialog","defaultValue":""},"viewportSetting":{"_tag":"fill"},"viewport":{"width":1280,"height":800},"tabs":[{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","owner":"agent","ownedByCaller":true}]}}}
{"time":"2026-11-10T11:34:15.076Z","tool":"preview_open","caller":0,"result":{"content":[{"type":"text","text":"A browser dialog is pending. Read preview_status and resolve it with preview_dialog."}],"isError":true}}
{"time":"2026-11-10T11:34:15.083Z","tool":"preview_recording_stop","caller":0,"result":{"content":[{"type":"text","text":"A browser dialog is pending. Read preview_status and resolve it with preview_dialog."}],"isError":true}}
{"time":"2026-11-10T11:34:15.084Z","tool":"preview_evaluate","caller":2,"result":{"content":[{"type":"text","text":"This browser tab belongs to another agent session or a human. Open your own tab."}],"isError":true}}
{"time":"2026-11-10T11:34:15.070Z","tool":"preview_snapshot","caller":2,"result":{"content":[{"type":"text","text":"Preview snapshot failed: A browser dialog is pending. Read preview_status and resolve it with preview_dialog."}],"structuredContent":{"error":{"_tag":"PreviewAutomationControlInterruptedError","operation":"snapshot","failureCount":1,"message":"A browser dialog is pending. Read preview_status and resolve it with preview_dialog."}},"isError":true}}
{"time":"2026-11-10T11:34:15.071Z","tool":"preview_wait_for","caller":2,"result":{"content":[{"type":"text","text":"A browser dialog is pending. Read preview_status and resolve it with preview_dialog."}],"isError":true}}
{"time":"2026-11-10T11:34:16.707Z","tool":"preview_evaluate","caller":0,"result":{"content":[{"type":"text","text":"A human controls this browser tab. Wait until they release control."}],"isError":true}}
{"time":"2026-11-10T11:34:16.727Z","tool":"preview_recording_stop","caller":0,"result":{"content":[{"type":"text","text":"A human controls this browser tab. Wait until they release control."}],"isError":true}}
{"time":"2026-11-10T11:34:16.742Z","tool":"preview_evaluate","caller":2,"result":{"content":[{"type":"text","text":"This browser tab belongs to another agent session or a human. Open your own tab."}],"isError":true}}
{"time":"2026-11-10T11:34:16.872Z","tool":"preview_dialog","caller":0,"result":{"isError":false,"selectedStatusFields":{"available":true,"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","url":null,"loading":false,"control":{"owner":"agent","ownedByCaller":true,"generation":2},"dialog":null,"viewportSetting":{"_tag":"fill"},"viewport":{"width":1280,"height":800},"tabs":[{"tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","owner":"agent","ownedByCaller":true}]}}}
{"time":"2026-11-10T11:34:17.208Z","tool":"preview_evaluate","caller":0,"result":{"isError":false,"structuredContent":{"value":"ok"}}}
{"time":"2026-11-10T11:34:17.348Z","tool":"preview_recording_stop","caller":0,"result":{"isError":false,"structuredContent":{"id":"100ee364-0c8a-4d22-8790-3614885b473c-ae85df61-3e0f-404e-a006-85521d22eace-mp4","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","path":"/home/user/wt/pr-32866-cap-after/.t3/userdata/attachments/100ee364-0c8a-4d22-8790-3614885b473c-ae85df61-3e0f-404e-a006-85521d22eace-mp4.mp4","mimeType":"video/mp4","sizeBytes":32344,"createdAt":"2026-11-10T11:34:17.337Z"}}}
{"time":"2026-11-10T11:34:17.368Z","tool":"t3_preview_close","caller":0,"result":{"isError":false,"structuredContent":{}}}
```

Relevant server milestones:

```jsonl
{"time":"2026-11-10T11:29:29.949Z","event":"host.connected","connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:33:55.576Z","event":"request.start","operation":"open","requestId":"preview-76","tabId":"tab_9_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":660000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:33:55.823Z","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","event":"tab.created","detail":{"desktop":false,"isolatedContext":true}}
{"time":"2026-11-10T11:33:55.849Z","event":"request.start","operation":"recordingStart","requestId":"preview-77","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":15000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:33:58.016Z","event":"request.start","operation":"setColorScheme","requestId":"preview-79","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":15000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:33:58.016Z","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","event":"emulateMedia.start","detail":[{"colorScheme":"dark"}]}
{"time":"2026-11-10T11:34:15.030Z","event":"request.start","operation":"status","requestId":"preview-80","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":15000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:34:15.063Z","event":"request.start","operation":"snapshot","requestId":"preview-81","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":15000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:34:15.066Z","event":"request.start","operation":"waitFor","requestId":"preview-82","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":1000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:34:15.072Z","event":"request.start","operation":"open","requestId":"preview-83","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":660000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:34:15.076Z","event":"request.start","operation":"recordingStop","requestId":"preview-84","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":120000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:34:15.077Z","event":"request.start","operation":"evaluate","requestId":"preview-85","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":15000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:34:16.702Z","event":"request.start","operation":"evaluate","requestId":"preview-86","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":15000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:34:16.723Z","event":"request.start","operation":"recordingStop","requestId":"preview-87","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":120000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:34:16.737Z","event":"request.start","operation":"evaluate","requestId":"preview-88","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":15000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:34:16.861Z","event":"request.start","operation":"dialog","requestId":"preview-89","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":15000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:34:16.868Z","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","event":"emulateMedia.end","detail":{}}
{"time":"2026-11-10T11:34:17.197Z","event":"request.start","operation":"evaluate","requestId":"preview-91","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":15000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:34:17.216Z","event":"request.start","operation":"recordingStop","requestId":"preview-93","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":120000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
{"time":"2026-11-10T11:34:17.218Z","event":"recording.stop.start","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406"}
{"time":"2026-11-10T11:34:17.305Z","event":"recording.encoder.closed","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406"}
{"time":"2026-11-10T11:34:17.362Z","event":"request.start","operation":"close","requestId":"preview-95","tabId":"tab_a_bd9d2d9d-727d-4676-b1e8-9554a31f1406","timeoutMs":15000,"connectionId":"09b81d2d-300e-436a-8035-a1f18530f0d1"}
```

AI-assisted; verified with the tests and tools listed above.