fix(examples): migrate OpenAI examples to Responses API#1122
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gpt-5.4 no longer supports reasoning_effort with function tools on /v1/chat/completions. Migrate openai_tool.mjs to the Responses API which supports both. Remove reasoning_effort from Vercel AI SDK and LangChain examples since those libraries use chat completions internally.
Add ai.*, anthropic.*, openai.* build artifacts to .gitignore alongside the existing wrapper.* and langchain.* entries.
AI SDK 5 (ai@^5) requires providers implementing spec v2. @ai-sdk/openai v1 only implements v1, causing UnsupportedModelVersionError on vercel_ai_tool.mjs.
@ai-sdk/openai v2 drops Zod type info when converting to function parameters, sending type: "None" to OpenAI which rejects it. Switch to jsonSchema() which preserves the type: "object" wrapper correctly. Also remove unused zod import.
Upgrade ai@5 -> ai@6 and @ai-sdk/openai@2 -> @ai-sdk/openai@3. AI SDK v6 renamed tool parameter from `parameters` to `inputSchema` and uses the Responses API by default. Use jsonSchema() for explicit schema declaration that serializes correctly.
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Summary
openai.responses.create()), which supportsreasoning: { effort: "none" }with function tools on gpt-5.4reasoning_effortparameter since these libraries use Chat Completions internally where this combination is no longer supportedWhy
All JS CI jobs have been failing with:
OpenAI changed their API — gpt-5.4 no longer supports combining
reasoning_effortwith function tools on the/v1/chat/completionsendpoint. The Responses API (/v1/responses) supports both.This was not a Doppler config, network, or billing issue — the API keys are working fine (400 not 401/403).
Test plan
.mjsfiles passnode --check(syntax valid)bash_basics.mjs,langchain_integration.mjs) run successfullycargo fmt --checkandcargo clippypass