real dev verification, 2026-10-31 UTC
main: 6d46336476941257d774be7c7733e9caf201fec2
pr: b5ddc0a0f837893596bc129e26b9e9ef7df02c39
client: Playwright 1.60, /usr/bin/google-chrome, Linux web client
provider: Codex gpt-6.1-sol via local proxy
project: real git repository, added through web UI; no fixtures or mocks
main server stopped before PR server started

matching prompt: Try the built-in T3 browser on my Studio Mac and check that it can open https://example.com. Do not change files.

MAIN
{"at":"2026-10-31T05:49:43.374Z","tool":"preview_status","args":{},"result":{"available":false,"tabId":null,"title":null,"url":null,"visible":false},"error":null}
{"at":"2026-10-31T05:49:46.641Z","tool":"t3_environment_read","args":{},"error":null}
{"at":"2026-10-31T05:49:46.692Z","tool":"preview_open","args":{"url":"https://example.com","open":false,"reuseExistingTab":false},"result":{"available":true,"tabId":"tab_2_1ebcc0d8-62e1-4520-b925-e808c07915a9","title":"Example Domain","url":"https://example.com/","visible":false,"tabs":[{"tabId":"tab_2_1ebcc0d8-62e1-4520-b925-e808c07915a9","visible":false}]},"error":null}
{"at":"2026-10-31T05:49:52.026Z","tool":"preview_snapshot","args":{"tabId":"tab_2_1ebcc0d8-62e1-4520-b925-e808c07915a9"},"error":null}
{"at":"2026-10-31T05:49:52.050Z","tool":"t3_preview_close","args":{"tabId":"tab_2_1ebcc0d8-62e1-4520-b925-e808c07915a9"},"result":{},"error":null}

PR
{"at":"2026-10-31T05:52:36.712Z","tool":"t3_environment_read","args":{},"error":null}
{"at":"2026-10-31T05:53:11.648Z","tool":"preview_status","args":{},"result":{"available":false,"tabId":null,"title":null,"url":null,"visible":false},"error":null}
{"at":"2026-10-31T05:53:17.916Z","tool":"preview_open","args":{"url":"https://example.com"},"result":{"available":true,"tabId":"tab_1_cc07476b-6c6f-4c0a-a5cb-ff4eb45168f3","title":"Example Domain","url":"https://example.com/","visible":false,"tabs":[{"tabId":"tab_1_cc07476b-6c6f-4c0a-a5cb-ff4eb45168f3","visible":false}]},"error":null}
{"at":"2026-10-31T05:53:20.770Z","tool":"preview_open","args":{"url":"https://example.com"},"result":{"available":true,"tabId":"tab_1_cc07476b-6c6f-4c0a-a5cb-ff4eb45168f3","title":"Example Domain","url":"https://example.com/","visible":true,"tabs":[{"tabId":"tab_1_cc07476b-6c6f-4c0a-a5cb-ff4eb45168f3","visible":true}]},"error":null}
{"at":"2026-10-31T05:53:20.974Z","tool":"preview_open","args":{"url":"https://example.com","open":false,"reuseExistingTab":false},"result":{"available":true,"tabId":"tab_2_cc07476b-6c6f-4c0a-a5cb-ff4eb45168f3","title":"Example Domain","url":"https://example.com/","visible":false,"tabs":[{"tabId":"tab_1_cc07476b-6c6f-4c0a-a5cb-ff4eb45168f3","visible":true},{"tabId":"tab_2_cc07476b-6c6f-4c0a-a5cb-ff4eb45168f3","visible":false}]},"error":null}
{"at":"2026-10-31T05:53:21.279Z","tool":"preview_snapshot","args":{"tabId":"tab_1_cc07476b-6c6f-4c0a-a5cb-ff4eb45168f3"},"error":null}
{"at":"2026-10-31T05:53:24.279Z","tool":"t3_preview_close","args":{"tabId":"tab_2_cc07476b-6c6f-4c0a-a5cb-ff4eb45168f3"},"result":{},"error":null}
{"at":"2026-10-31T05:53:24.299Z","tool":"t3_preview_close","args":{"tabId":"tab_1_cc07476b-6c6f-4c0a-a5cb-ff4eb45168f3"},"result":{},"error":null}
{"at":"2026-10-31T05:53:24.313Z","tool":"preview_status","args":{},"result":{"available":false,"tabId":null,"title":null,"url":null,"visible":false},"error":null}
{"at":"2026-10-31T05:54:25.768Z","tool":"preview_status","args":{},"result":{"available":false,"tabId":null,"title":null,"url":null,"visible":false},"error":null}
{"at":"2026-10-31T05:54:29.283Z","tool":"preview_open","args":{"url":"https://example.com","open":false,"reuseExistingTab":false},"result":{"available":true,"tabId":"tab_3_cc07476b-6c6f-4c0a-a5cb-ff4eb45168f3","title":"Example Domain","url":"https://example.com/","visible":false,"tabs":[{"tabId":"tab_3_cc07476b-6c6f-4c0a-a5cb-ff4eb45168f3","visible":false}]},"error":null}
{"at":"2026-10-31T05:54:33.099Z","tool":"t3_preview_close","args":{"tabId":"tab_3_cc07476b-6c6f-4c0a-a5cb-ff4eb45168f3"},"result":{},"error":null}

limits: no reachable compatible linked environment. Existing installed server is 0.1.2 and lacks linkFence/mcpModeLimitHeader capabilities. No linked-browser delegation or Mac browser was exercised. These runs do not establish main fails and PR succeeds with a reachable linked machine.
checks: 2 focused existing tests passed via blacksmith-check: preview/tools.test.ts and provider/AgentContextBudget.test.ts. CI: 29 successful, 0 pending, 0 failing at exact PR head.