Fail app builds on generation or push errors

[cursor]

Bug and impact

The /api/build-app stream could report done even when Claude failed to generate a file or GitHub/GitLab rejected a file push. Users would see “Built!” and receive a repo link even though the repo contained placeholder error files or was missing files.

Root cause

The per-file generation loop converted generation exceptions into # Error generating ... file content, and the GitHub/GitLab push helpers only logged non-OK responses instead of throwing. The loop incremented the pushed counter and emitted success regardless.

Fix

• Deduplicate generated file paths before building the repo file list.
• Throw on GitHub/GitLab push failures with the platform error message.
• Stop the SSE stream with an explicit error event when generation or push fails, instead of emitting done.

Validation

• pnpm exec tsc --noEmit
• pnpm exec eslint app/api/build-app/route.ts
• Mocked runtime verification of POST /api/build-app covering generation failure, push failure, duplicate path dedupe, and successful completion.

  

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Project	Deployment	Actions	Updated (UTC)
repo-app-architect	Ready	Preview, Comment	Jun 9, 2026 11:10am
repofuse	Ready	Preview, Comment, Open in v0	Jun 9, 2026 11:10am
v0-repo-app-architect	Ready	Preview, Comment, Open in v0	Jun 9, 2026 11:10am