[Bug]: T3 code not showing model output

[extreme4all]

Before submitting

• I searched existing issues and did not find a duplicate.
• I included enough detail to reproduce or investigate the problem.

Area

apps/web

Steps to reproduce

started app with

bunx t3

harness:

opencode

in the provider logs i do see that the model returns a response

Expected behavior

• no usage of codex-cli when opencode is being used
• showing error in interface
• showing the model responses

Actual behavior

"silent" failure, no model responses

Impact

Blocks work completely

Version or commit

0.0.23

Environment

$ bun --version 1.2.19

Logs or stack traces

[2026-05-14T15:04:45.273Z] CANON: {"eventId":"01d17d75-0525-49d9-9d41-8df161812965","provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","createdAt":"2026-05-14T15:04:45.270Z","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","type":"turn.started","payload":{"model":"zai-coding-plan/glm-5-turbo"},"providerInstanceId":"opencode"}
[2026-05-14T15:04:45.310Z] NTIVE: {"observedAt":"2026-05-14T15:04:45.310Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"session.status","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","payload":{"id":"evt_e2704c7e6001teChGlxgCXqjML","type":"session.status","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","status":{"type":"busy"}}}}}
[2026-05-14T15:04:45.310Z] NTIVE: {"observedAt":"2026-05-14T15:04:45.310Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"session.diff","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","payload":{"id":"evt_e2704c7f2001v9H4TjeI4WouYZ","type":"session.diff","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","diff":[]}}}}
[2026-05-14T15:04:45.319Z] NTIVE: {"observedAt":"2026-05-14T15:04:45.318Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"session.status","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","payload":{"id":"evt_e2704c804001CFC1tFT69BHwOf","type":"session.status","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","status":{"type":"busy"}}}}}
[2026-05-14T15:04:47.476Z] CANON: {"eventId":"f9c53539-ddad-492d-81d9-09fd71c5cd15","provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","createdAt":"2026-05-14T15:04:47.476Z","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","raw":{"source":"opencode.sdk.event","payload":{"id":"evt_e2704d06d001wnZmay5zf2qae3","type":"session.status","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","status":{"type":"idle"}}}},"type":"turn.completed","payload":{"state":"completed"},"providerInstanceId":"opencode"}
[2026-05-14T15:04:47.473Z] NTIVE: {"observedAt":"2026-05-14T15:04:47.473Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"message.part.delta","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","payload":{"id":"evt_e2704d0620016KwhWD8dBIi85Z","type":"message.part.delta","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","messageID":"msg_e2704c7e7001qnie9B7I0pyvsN","partID":"prt_e2704d061001Lm5DV4JdYWt670","field":"text","delta":"Hello"}}}}
[2026-05-14T15:04:47.474Z] NTIVE: {"observedAt":"2026-05-14T15:04:47.473Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"message.part.delta","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","payload":{"id":"evt_e2704d063001MK6o2s8OObbfLx","type":"message.part.delta","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","messageID":"msg_e2704c7e7001qnie9B7I0pyvsN","partID":"prt_e2704d061001Lm5DV4JdYWt670","field":"text","delta":"!"}}}}
[2026-05-14T15:04:47.474Z] NTIVE: {"observedAt":"2026-05-14T15:04:47.474Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"message.part.delta","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","payload":{"id":"evt_e2704d0630028jJYJwf6jyD5Mf","type":"message.part.delta","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","messageID":"msg_e2704c7e7001qnie9B7I0pyvsN","partID":"prt_e2704d061001Lm5DV4JdYWt670","field":"text","delta":" Need"}}}}
[2026-05-14T15:04:47.474Z] NTIVE: {"observedAt":"2026-05-14T15:04:47.474Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"message.part.delta","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","payload":{"id":"evt_e2704d063003NkXHmWQ1sV7Maz","type":"message.part.delta","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","messageID":"msg_e2704c7e7001qnie9B7I0pyvsN","partID":"prt_e2704d061001Lm5DV4JdYWt670","field":"text","delta":" help"}}}}
[2026-05-14T15:04:47.474Z] NTIVE: {"observedAt":"2026-05-14T15:04:47.474Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"message.part.delta","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","payload":{"id":"evt_e2704d06400164jXmGui5zWjiV","type":"message.part.delta","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","messageID":"msg_e2704c7e7001qnie9B7I0pyvsN","partID":"prt_e2704d061001Lm5DV4JdYWt670","field":"text","delta":" with"}}}}
[2026-05-14T15:04:47.474Z] NTIVE: {"observedAt":"2026-05-14T15:04:47.474Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"message.part.delta","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","payload":{"id":"evt_e2704d064002ShsF7ULWc791zT","type":"message.part.delta","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","messageID":"msg_e2704c7e7001qnie9B7I0pyvsN","partID":"prt_e2704d061001Lm5DV4JdYWt670","field":"text","delta":" anything"}}}}
[2026-05-14T15:04:47.474Z] NTIVE: {"observedAt":"2026-05-14T15:04:47.474Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"message.part.delta","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","payload":{"id":"evt_e2704d0640031tuy86Ipc2Ta36","type":"message.part.delta","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","messageID":"msg_e2704c7e7001qnie9B7I0pyvsN","partID":"prt_e2704d061001Lm5DV4JdYWt670","field":"text","delta":"?"}}}}
[2026-05-14T15:04:47.475Z] NTIVE: {"observedAt":"2026-05-14T15:04:47.475Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"session.status","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","payload":{"id":"evt_e2704d06b001oKJvJcjmnM1iei","type":"session.status","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","status":{"type":"busy"}}}}}
[2026-05-14T15:04:47.476Z] NTIVE: {"observedAt":"2026-05-14T15:04:47.476Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"session.status","turnId":"opencode-turn-89717ded-f9bd-412d-8165-91e9c1a11105","payload":{"id":"evt_e2704d06d001wnZmay5zf2qae3","type":"session.status","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","status":{"type":"idle"}}}}}
[2026-05-14T15:04:47.476Z] NTIVE: {"observedAt":"2026-05-14T15:04:47.476Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"session.idle","payload":{"id":"evt_e2704d06d002j7Ql4a4smSCvWf","type":"session.idle","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ"}}}}
[2026-05-14T15:04:47.477Z] NTIVE: {"observedAt":"2026-05-14T15:04:47.477Z","event":{"provider":"opencode","threadId":"d88f7ca2-9f0b-4085-a982-27b459711735","providerThreadId":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","type":"session.diff","payload":{"id":"evt_e2704d070001eIWqQPEBZYHvhH","type":"session.diff","properties":{"sessionID":"ses_1d8fff7c4ffeE1xtDqwj1C7bjJ","diff":[]}}}}


logs

[17:12:02.678] WARN (#7560): provider command reactor failed to generate or rename thread title
 {
 threadId: 'bb6b8312-14c8-44ac-ba84-ffba8c3dc878',
 cwd: '/home/extreme4all/.t3/worktrees/bot_detector/t3code-73bdc985',
 cause: 'TextGenerationError: Text generation failed in generateThreadTitle: Failed to spawn Codex CLI process: PermissionDenied: ChildProcess.spawn (codex exec --ephemeral --skip-git-repo-check -s read-only --model gpt-5.4-mini --config model_reasoning_effort="low" --output-schema /tmp/t3code-codex-schema-23386-b1e55d75-c9e5-4189-9109-a52d1dcd3919.tmpCsO4MQ/1c91e9afe4bf --output-last-message /tmp/t3code-codex-output-23386-0d4119a9-a53d-4d8d-85ad-c10991a1293d.tmp60pvSe/b805d8d5965d -)\n' +
 ' at normalizeCliError (file:///tmp/bunx-1000-t3@latest/node_modules/t3/dist/bin.mjs:26845:10)\n' +
 ' at file:///tmp/bunx-1000-t3@latest/node_modules/t3/dist/bin.mjs:30059:87\n' +
 ' at file:///tmp/bunx-1000-t3@latest/node_modules/effect/dist/internal/effect.js:1309:96\n' +
 ' at ~effect/Utils/internal (file:///tmp/bunx-1000-t3@latest/node_modules/effect/dist/Utils.js:69:12)\n' +
 ' at runCodexJson.runCodexCommand (file:///tmp/bunx-1000-t3@latest/node_modules/t3/dist/bin.mjs:30081:11)\n' +
 ' at runCodexJson.runCodexCommand (definition) (file:///tmp/bunx-1000-t3@latest/node_modules/t3/dist/bin.mjs:30031:34)\n' +
 ' at runCodexJson (file:///tmp/bunx-1000-t3@latest/node_modules/t3/dist/bin.mjs:30162:48)\n' +
 ' at runCodexJson (definition) (file:///tmp/bunx-1000-t3@latest/node_modules/t3/dist/bin.mjs:30028:30)\n' +
 ' at CodexTextGeneration.generateThreadTitle (file:///tmp/bunx-1000-t3@latest/node_modules/t3/dist/bin.mjs:18314:171)\n' +
 ' at CodexTextGeneration.generateThreadTitle (definition) (file:///tmp/bunx-1000-t3@latest/node_modules/t3/dist/bin.mjs:30156:31)\n' +
 ' at maybeGenerateThreadTitleForFirstTurn (file:///tmp/bunx-1000-t3@latest/node_modules/t3/dist/bin.mjs:59101:77)\n' +
 ' at maybeGenerateThreadTitleForFirstTurn (definition) (file:///tmp/bunx-1000-t3@latest/node_modules/t3/dist/bin.mjs:59042:54)\n' +
 ' at processTurnStartRequested (file:///tmp/bunx-1000-t3@latest/node_modules/t3/dist/bin.mjs:59241:12)\n' +
 ' at processTurnStartRequested (definition) (file:///tmp/bunx-1000-t3@latest/node_modules/t3/dist/bin.mjs:59068:43) {\n' +
 ' [cause]: PlatformError: PermissionDenied: ChildProcess.spawn (codex exec --ephemeral --skip-git-repo-check -s read-only --model gpt-5.4-mini --config model_reasoning_effort="low" --output-schema /tmp/t3code-codex-schema-23386-b1e55d75-c9e5-4189-9109-a52d1dcd3919.tmpCsO4MQ/1c91e9afe4bf --output-last-message /tmp/t3code-codex-output-23386-0d4119a9-a53d-4d8d-85ad-c10991a1293d.tmp60pvSe/b805d8d5965d -)\n' +
 ' at Module.systemError (file:///tmp/bunx-1000-t3@latest/node_modules/effect/dist/PlatformError.js:59:39)\n' +
 ' at file:///tmp/bunx-1000-t3@latest/node_modules/@effect/platform-node-shared/dist/internal/utils.js:28:24\n' +
 ' at toPlatformError (file:///tmp/bunx-1000-t3@latest/node_modules/@effect/platform-node-shared/dist/NodeChildProcessSpawner.js:25:54)\n' +
 ' at ChildProcess.<anonymous> (file:///tmp/bunx-1000-t3@latest/node_modules/@effect/platform-node-shared/dist/NodeChildProcessSpawner.js:230:26)\n' +
 ' at ChildProcess.emit (node:events:518:28)\n' +
 ' at ChildProcess._handle.onexit (node:internal/child_process:291:12)\n' +
 ' at onErrorNT (node:internal/child_process:483:16)\n' +
 ' at process.processTicksAndRejections (node:internal/process/task_queues:90:21) {\n' +
 ' [cause]: Error: spawn codex EACCES\n' +
 ' at ChildProcess._handle.onexit (node:internal/child_process:285:19)\n' +
 ' at onErrorNT (node:internal/child_process:483:16)\n' +
 ' at process.processTicksAndRejections (node:internal/process/task_queues:90:21)\n' +
 ' }\n' +
 '}'
 }

Screenshots, recordings, or supporting files

No response

Workaround

No response

[heyitspaul]

I've been having a similar issue when using Cursor. Model makes a bunch of tool calls and then stays silent.

[delmicio]

I've been having a similar issue when using Cursor. Model makes a bunch of tool calls and then stays silent.

Same here with Cursor in the middle of the thread. Due to T3Code not having export session functionality, I had to start a new Codex thread asking where T3Code saves sessions to get back my plan. I have stopped using T3Code for now because of this issue.

[pozgo]

Same... I can see requests going to Anthrpic as I'm using meridian proxy for my opencode so seems the issue is only on T3 Code side

[KhalidWar]

Same issue here. No responses even though the agent is doing the work in the background. It reviewed the PR I asked it to and left a comment but none of that showed on the UI. This only affects DeepSeek models not Claude Opus.

• T3 Code v0.0.23 (Electron desktop, macOS Tahoe)
• Backend: opencode (port 3773)
• Model: DeepSeek V4 Pro
• Same symptom: user messages render, assistant messages don't

[delmicio]

FYI for anyone looking to recover the chat session. You can use Zed IDE to import from the agent's chat history. Or, even simpler, prompt the buggy agent to save the session into a file; it will do it in the background, but you won't know when it's done.