fix: production AI plan schema, SSO error handling, and Accelerate URL check

[Suharshit]

Summary

Fixes found while debugging production (project creation, AI chat, and spec generation failing on designdraftly.vercel.app).

Design agent: "No object generated: response did not match schema"

The plan prompt tells the model that when the canvas already has components it should list only the components to add, but designPlanSchema required at least one component (and non-empty strings). A request that added nothing new returned components: [], failed validation, failed the single retry the same way, and the turn ended with a generic error.

• The model now fills designPlanDraftSchema (same fields, no non-empty rules — the same approach already used for list limits).
• sanitizePlanDraft drops unnamed components and incomplete decisions and fills a missing role, responsibility, or summary. The stored designPlanSchema is unchanged, so existing sessions keep parsing.
• When no component is left, the run aborts with PLAN_NOTHING_TO_ADD_MESSAGE, which the session route shows to the user as is.
• withSchemaRetry logs finish reason, validation cause, and the start of the response on both attempts, so the next mismatch is diagnosable from logs.

Auth

signIn.sso / signUp.sso results were ignored, so a failed GitHub/Google redirect did nothing with no console output or message. Errors are now logged and shown on the card.

Prisma

lib/prisma.ts checked for prism+postgres://; Accelerate URLs start with prisma+postgres://. Production uses a plain postgres:// URL, so this was latent.

Already done outside this PR

The production database was missing the add_ai_sessions and add_project_spec migrations (Prisma P2022: Project.specMdPath does not exist). They were applied manually with prisma migrate deploy. Nothing runs migrations on deploy yet — follow-up.

Test plan

• pnpm typecheck
• eslint on changed files
• sanitizePlanDraft: empty draft → null; partial draft → repaired and valid against designPlanSchema
• After merge (Trigger.dev tasks deploy from main): an "add components" AI turn on an existing canvas in production
• GitHub sign-in in production shows an error message if the redirect fails

🤖 Generated with Claude Code

[vercel]

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Project	Deployment	Actions	Updated
draftly	Ready	Preview	Sep 16, 2026 5:02pm UTC

[coderabbitai]

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