[Bug]: GENERATION_FAILED (fp: c85d010d)

[Maxitendo1]

Description

Error invoking remote method 'codesign:v1:generate': CodesignError: terminated

OS: Kubuntu 25.10
AI Provider: Lemonade with OpenAI Chat
Model: Qwen3.5-9B-Uncensored-HauhauCS-Aggressive
Connection: OK

Steps to reproduce

1. Open the app
2. Start a new design
3. Type something

Expected behavior

It should work.

Actual behavior

Error invoking remote method 'codesign:v1:generate': CodesignError: terminated

open-codesign version

0.1.4

Platform

Linux

OS version

6.17.0-22-generic

Model provider (if relevant)

Other

Error code

GENERATION_FAILED

Diagnostics bundle

Bundle saved locally at ~

open-codesign-diagnostics-2026-04-26T09-46-02.zip

/Downloads/open-codesign-diagnostics-2026-04-26T09-46-02.zip. Attach it to this issue after submitting.

Logs

at writeOrBuffer (node:internal/streams/writable:572:12)
    at _write (node:internal/streams/writable:501:10)
    at Writable.write (node:internal/streams/writable:510:10)
    at console.value (node:internal/console/constructor:303:16)
    at console.error (node:internal/console/constructor:433:26)
    at transport.writeFn ([url omitted] omitted]
[2026-04-26 11:46:02.845] [error]  [crash:browser] Error: write EPIPE
    at afterWriteDispatched (node:internal/stream_base_commons:159:15)
    at writeGeneric (node:internal/stream_base_commons:150:3)
    at Socket._writeGeneric (node:net:966:11)
    at Socket._write (node:net:978:8)
    at writeOrBuffer (node:internal/streams/writable:572:12)
    at _write (node:internal/streams/writable:501:10)
    at Writable.write (node:internal/streams/writable:510:10)
    at console.value (node:internal/console/constructor:303:16)
    at console.error (node:internal/console/constructor:433:26)
    at transport.writeFn ([url omitted] omitted]
[2026-04-26 11:46:02.845] [error]  Unhandled Error: write EPIPE
    at afterWriteDispatched (node:internal/stream_base_commons:159:15)
    at writeGeneric (node:internal/stream_base_commons:150:3)
    at Socket._writeGeneric (node:net:966:11)
    at Socket._write (node:net:978:8)
    at writeOrBuffer (node:internal/streams/writable:572:12)
    at _write (node:internal/streams/writable:501:10)
    at Writable.write (node:internal/streams/writable:510:10)
    at console.value (node:internal/console/constructor:303:16)
    at console.error (node:internal/console/constructor:433:26)
    at transport.writeFn ([url omitted] omitted]
[2026-04-26 11:46:02.845] [error]  [crash:browser] Error: write EPIPE
    at afterWriteDispatched (node:internal/stream_base_commons:159:15)
    at writeGeneric (node:internal/stream_base_commons:150:3)
    at Socket._writeGeneric (node:net:966:11)
    at Socket._write (node:net:978:8)
    at writeOrBuffer (node:internal/streams/writable:572:12)
    at _write (node:internal/streams/writable:501:10)
    at Writable.write (node:internal/streams/writable:510:10)
    at console.value (node:internal/console/constructor:303:16)
    at console.error (node:internal/console/constructor:433:26)
    at transport.writeFn ([url omitted] omitted]
[2026-04-26 11:46:02.845] [error]  Unhandled Error: write EPIPE
    at afterWriteDispatched (node:internal/stream_base_commons:159:15)
    at writeGeneric (node:internal/stream_base_commons:150:3)
    at Socket._writeGeneric (node:net:966:11)
    at Socket._write (node:net:978:8)
    at writeOrBuffer (node:internal/streams/writable:572:12)
    at _write (node:internal/streams/writable:501:10)
    at Writable.write (node:internal/streams/writable:510:10)
    at console.value (node:internal/console/constructor:303:16)
    at console.error (node:internal/console/constructor:433:26)
    at transport.writeFn ([url omitted] omitted]

[github-actions]

Thanks for reporting this. I checked the current 0.1.4 code path and what I can verify is narrower than the symptom suggests.

Right now, Open CoDesign only turns a raw terminated transport error into a specific relay hint when the request used openai-responses against a custom base URL. If the request was sent over openai-chat, the same terminated shape falls through to unknown, and the renderer suppresses that generic hypothesis, so the UI ends up showing only CodesignError: terminated. That matches existing issue #189, so this looks related rather than a new classified error path. I also found #216 about test-connection vs runtime-call parity, but I did not find a matching PR for this exact terminated path.

Based on the model ID you shared, this does not look like the developer-role regression from #183 / #234: third-party openai-chat reasoning is only enabled for a small allowlist, and Qwen3.5-9B-Uncensored-HauhauCS-Aggressive would not match it.

Relevant code:

• packages/shared/src/diagnostics.ts:219 — only openai-responses + custom baseUrl + terminated/truncated-stream patterns get the relayStreamingBug hint.
• packages/shared/src/diagnostics.ts:270 — without HTTP status, only a limited set of message patterns are upgraded; otherwise it falls back to unknown.
• apps/desktop/src/renderer/src/store.ts:1100 — the renderer drops the bare unknown hypothesis, so the user just sees the upstream error text.
• packages/providers/src/wire-policy.ts:50 — third-party openai-chat reasoning is gated by a narrow model-ID allowlist.

Need more info:

• Please attach the diagnostics bundle to the issue, or paste the redacted generate.fail block from the main log (provider, modelId, baseUrl, status, message). The snippet here only shows write EPIPE crash/browser output.
• Please confirm the exact custom provider settings: selected wire (OpenAI Chat vs OpenAI Responses) and the redacted base URL shape.

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open-codesign Bot