Step Functions raises States.Runtime for a StringEquals on a missing path
instead of treating it as a non-match, so a state machine input without
PlanProtocol failed at SelectPlanProtocol and never reached the Default
branch. Check presence first in both the SAM template and the CDK stack.
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* perf(aws-lambda): small-chunk cloud renders stitch their output in parallel
When every chunk's payload is under S3's 5 MiB part minimum (typical for short 4K chunks), the assemble step could not copy any part server-side and pulled the whole output through one Lambda's network link. Those range-only parts now go to parallel invocations of the warm function that just rendered the chunks, about 32 MiB each and never more at once than the stack's reserved concurrency allows. The output bytes are unchanged.
* fix(aws-lambda): a throttled stitch helper builds its parts in the assemble instead
Another render can hold the stack's reserved concurrency while this one assembles, so a helper invocation may be refused. The assemble now builds that batch itself, logs it, and counts it in assemble_stages; the helper's error type is kept as the error name. Comments trimmed back to each file's share at the base.
* chore(aws-lambda): raise the package size budget to the measured size plus headroom
The parallel stitch helpers add about 1.7 KB packed and 9.9 KB unpacked; the new budget is the measured size times the checker's own 1.05 headroom.
* perf(aws-lambda): each chunk logs where its seconds went
The chunk_capture event now carries the handler's setup time and the renderer's own stage timings (plan check, browser boot, capture, encode, total), which the renderer already measured but the logs dropped. Lets a fleet run be split into start-up, capture and tail per chunk.
* perf(aws-lambda): chunk logs also time the Chrome path resolution
On the container image the compressed Chrome may be unpacked on every cold chunk; chromeMs separates that from the plan download in setupMs.
* fix(producer): chunk capture round-robins only for callers that bill wall time
* fix(engine): worker, extraction and encoder sizing read the CPU quota, not the host core count
* Revert "fix(engine): worker, extraction and encoder sizing read the CPU quota, not the host core count"
This reverts commit cdd4d858c8.
* chore(producer): drop the doc comments the comment ratchet rejects
Miguel Ángel