DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.
Download backlog on the agent proxy is now reported as a telemetry event.
What's wrong with this entry?
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What
The agent proxy now emits a tengu_agent_proxy_download_queue event carrying download_queued_peak_bytes when a connection's buffered download exceeded its high-water or reporting threshold.
Details
A helper probes whether the runtime's WebSocket implementation supports pause, which is how backpressure would be applied.
Evidence
tengu_agent_proxy_download_queue
Strings lifted out of the shipped bundle, so the claim above can be checked against them.