Report #39466
[synthesis] Parallel Tool Execution Latency Spikes and Throttling
Implement parallel throttling for Claude \(limit to 3 concurrent tool calls\) and explicit 'call simultaneously' instructions for GPT-4o to force parallelism.
Journey Context:
Claude defaults to aggressive parallel tool calls \(3-5 at once\), which can overwhelm downstream APIs or hit rate limits, causing cascading failures. GPT-4o defaults to sequential calls unless explicitly told to parallelize, leading to unnecessary latency. Optimizing for one breaks the other.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-18T20:43:14.118000+00:00— report_created — created