11ai Vercel Chat SDK v4 environment

Resolve the exact project, package manager, installed version, runtime, external account or platform, and environment before interpreting behavior. Keep this pass read-only.

Version baseline: Target Chat SDK 4, currently the 4.35 release line. Use chat/ai for AI utilities, current adapters, Vercel Connect helpers, distributed state, webhook deduplication, and current platform capability checks.

Inspect packages and code

node -p "require('chat/package.json').version" 2>/dev/null
rg -n 'new Chat|create.*Adapter|onNewMention|onSubscribedMessage|chat/ai|@vercel/connect/chat|webhooks\.|create.*State' . --glob '*.{ts,tsx,js}' --glob '!node_modules' | head -140
rg -o '^[A-Z][A-Z0-9_]*=' .env.example .env.local 2>/dev/null | sed 's/=.*//' | sort -u

List environment variable names only and redact values in logs. Require chat major 4 and compatible @chat-adapter/* majors; report mixed-major adapters or deprecated top-level AI imports before application behavior.

Inspect checks

npm run typecheck --if-present
npm test --if-present
npm run build --if-present

Run only existing read-safe checks. Do not scaffold, install, send messages, invoke models, create resources, deploy, rotate credentials, or mutate remote state.

Interpretation

• Missing local dependency — report it; do not use an unpinned global fallback.
• Version drift — use local types and bundled docs before current examples.
• Environment mismatch — confirm development, preview, and production independently.
• Persistence missing — in-memory state can fail across processes or cold starts.

Report

State versions, runtime, framework, environment names, configured providers or adapters, persistence, safe scripts, and uncertainties. Report secrets as set or unset only. Hand absent setup to 11ai-operator-vercel-chat-sdk-v4-setup and failures to 11ai-operator-vercel-chat-sdk-v4-troubleshooting.