Some Anthropic-compatible providers can return successful responses with
missing or partial usage metadata, especially after falling back to
non-streaming requests. Normalize usage at the provider response boundary so
transcript writes, side queries, and cost tracking continue without treating
token accounting as required response content.
Constraint: Third-party Anthropic-compatible providers do not always return complete usage fields.
Rejected: Add provider-specific handling | this is a protocol compatibility issue across proxies and gateways
Confidence: high
Scope-risk: moderate
Directive: Keep provider response normalization vendor-neutral; do not branch on provider names for missing usage fields.
Tested: bun test src/services/api/emptyUsage.test.ts src/utils/__tests__/thinking.test.ts src/server/__tests__/title-service.test.ts src/server/__tests__/conversations.test.ts
Tested: bun run check:server
Tested: bun run check:persistence-upgrade
Tested: git diff --check
Not-tested: Live Shengsuan Cloud provider replay
Desktop users can now disable thinking for new sessions, and Anthropic-compatible providers that opt in receive explicit disabled-thinking requests across main turns, side queries, and AI title generation.
Constraint: DeepSeek/Kimi/GLM Anthropic-compatible endpoints need a non-thinking path without scattering provider-specific logic through the CLI.
Rejected: Per-model if/else branches | centralized provider preset env keeps the native CLI surface smaller and easier to audit.
Confidence: high
Scope-risk: moderate
Tested: bun test src/utils/__tests__/thinking.test.ts src/server/__tests__/title-service.test.ts src/server/__tests__/provider-presets.test.ts src/server/__tests__/conversations.test.ts
Tested: cd desktop && bun run test -- generalSettings.test.tsx
Tested: cd desktop && bun run lint
Tested: cd desktop && bun run build
Tested: agent-browser DeepSeek desktop E2E with transparent proxy captured main and title requests with thinking.type=disabled
