🐛 Bugfix: Why does generation pipeline appear stuck after EXECUTE phas...

Date: 2026-03-11
Time: 17:37:21 UTC
Session: gspace1-204.8
Agent: backend
Confidence: 95%
Status: ✅ Documented

📋 Decision Context

Question:

Why does generation pipeline appear stuck after EXECUTE phase?

Task: Not specified

🎯 Decision Made

Chosen:

Two separate bugs found: (1) CastError: session.result.executeResult.modules changed from number to array in S200, but 3 callsites still used || 0 instead of .length, causing Mongoose CastError on space profile update. (2) Generation was triggered through Vitto chat AgentLoop, not vibe-universe SSE — the chat SSE only forwards phase-start/complete/progress events, NOT module-gen.completed or deploy events, so frontend never sees completion.

Options Considered:

• No alternatives documented

💭 Reasoning

Log analysis: [AgentLoop] entries prove generation went through chat path. The start_module_generation tool (tool-registry.service.ts:1360) only forwards 3 event types to chatSSE. The CastError at line 1107 of module-gen-phase.executor.ts passes an array where schema expects a number, because S200 changed executeResult.modules from count to array but didn't update the 3 moduleCount calculation callsites.

📁 Files Involved

• APIs/backend-vitto-api/src/app/module-generation/phases/module-gen-phase.executor.ts
• APIs/backend-vitto-api/src/app/tools/tool-registry.service.ts
• APIs/backend-vitto-api/src/app/mind/space-intelligence.service.ts
• APIs/backend-vitto-api/src/app/mind/schemas/space-profile.schema.ts

🔗 Related

• Decision ID: dev_1773250641457_hwmskh4
• Session: 204
• Workspace: gspace1

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