Remove clientOptions.apiKey from the LangGraph adapter, and draft the runtime comparison post - #1100
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A deployment credential passed from Angular ships in the browser bundle, so the adapter no longer offers a field for one. LangGraphClientOptions drops apiKey and gains defaultHeaders, the per-user session-token path for LangGraph custom auth. The SDK client is always constructed with an explicit null key so nothing is read from the environment either. The error-redaction seam now keys on configured headers. The cockpit's LangSmith runtime target forwards its key as the SDK's own x-api-key header. A *.type-spec.ts guard pins the absence of apiKey at compile time, since vitest specs are never typechecked. Deployment guide, provide-agent reference, and generated API docs updated. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
A source-verified comparison of the Vercel AI SDK, TanStack AI, assistant-ui, CopilotKit, and Threadplane on twenty-four rows, with the runtime question answered row by row. Ships as draft: true. The voice guide gains a rule against structural narration and stagey fragments. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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…trim the post description The docs binding spec still expected the removed apiKey member, and the new post's description exceeded the 160-character search-snippet budget. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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blove
enabled auto-merge (squash)
September 16, 2026 05:02
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Summary
Two commits.
1.
feat(langgraph)!:clientOptions.apiKeyis gone,defaultHeadersis added.A deployment credential passed from Angular ships in the bundle, so the adapter no longer offers a field for one. The SDK client is always built with an explicit null key, so it never reads a key from the environment either.
defaultHeaderscarries a per-user session token for LangGraph custom auth. The cockpit's LangSmith target (the one real consumer) forwards its key as the SDK's ownx-api-keyheader. Deployment guide, provide-agent reference, generated API docs, and CHANGELOG updated.2.
docs(blog): "Why Do Agent UI Libraries Require a Runtime?" is published in this PR (a third commit flipsdraft: false).A comparison of the Vercel AI SDK, TanStack AI, assistant-ui, CopilotKit, and Threadplane on twenty-four rows, every cell verified against primary sources on 2026-09-15, with inline links throughout. Names competitors on Brian's instruction for this post only. The voice guide gains a rule against structural narration.
Breaking change
LangGraphClientOptions.apiKeyno longer exists. Migrate a session token toclientOptions.defaultHeaders; keep deployment keys on an endpoint you own and pointapiUrlat it.Verification
nx test langgraph,nx test cockpit-telemetry: passnx buildandnx lintfor both libs: pass, 0 lint errorsnx type-tests langgraph: pass; removing the@ts-expect-errorin the new type-spec produces exactly one error (negative control)npm run generate-api-docs: regenerated,apiKeyabsentNot in this PR
An AG-UI deployment/auth guide is being written in a separate session (spawned task).
🤖 Generated with Claude Code