feat(examples/chat): announce the research subagent's stream identity - #874
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Adopts threadplane-middleware 0.0.2's announce_subagent in the canonical demo's research @tool: the child's tools:<uuid> stream namespace is bound to the dispatching call_* id via one custom event, so @threadplane/langgraph (0.0.62) attributes the stream exactly instead of positionally. Sequenced deliberately after both packages published — this is the first consumer resolving announce_subagent from PyPI rather than from source. e2e 54/54 (research-subagent @drift spec included), uv.lock resolves threadplane-middleware 0.0.2 from the registry. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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blove
enabled auto-merge (squash)
August 30, 2026 18:48
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Final piece of the subagent-identity arc (#869 → middleware 0.0.2 on PyPI →
@threadplane/langgraph0.0.62 on npm → this).The canonical demo's
researchtool now callsannounce_subagent(config, tool_call_id), binding the child graph'stools:<uuid>stream namespace to the dispatchingcall_*id. The frontend attributes the stream exactly instead of relying on the single-candidate positional fallback.Notable as a supply-chain checkpoint: this is the first consumer resolving
announce_subagentfrom PyPI (threadplane-middleware>=0.0.2, lock pinned to the registry artifact) rather than from in-repo source — so it validates the published package, not just the code that produced it.Verification
uv.lockresolvesthreadplane-middleware 0.0.2frompypi.org(not a path source)research-subagent@driftspec — aimock mocks only the OpenAI layer, so the real graph ran with the real binding event through the real published middlewareAnnotated/InjectedToolCallIdwired the same way as the cockpit demo🤖 Generated with Claude Code