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Priya RamanandPaperclip 8e26e17408 feat(sandbox): stream duplex run logs and bind the duplex telemetry recorder
Stream sandbox run logs on the duplex transport with the same gate and the
same log line as the file transport. The duplex path starts no file bridge
worker, so the host creates the log directory before the tail starts. The
step is best effort and never tears down a working duplex transport.

Bind the fixed duplex telemetry surface to real host sinks. The host builds
one recorder per run: the spans go to the OTel tracer, the guarded counters
go to the tool-runtime metric store, and the transport event goes to the
run-event path. Each sink runs guarded and fire-and-forget, so a telemetry
failure never breaks the request path. The server attaches the recorder to
the sandbox target next to the runner; a run with no recorder keeps the safe
no-op default. Update the telemetry README to name the counter store file.

Co-authored-by: Paperclip <noreply@paperclip.ing>
2026-08-20 17:20:28 +00:00
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