Report #6534
[gotcha] State corruption when an agent makes concurrent tool calls that mutate the same underlying state
Implement state locks or enforce sequential execution for state-mutating tools.
Journey Context:
MCP supports multiple tools. An LLM might decide to call write\_file and read\_file concurrently. If the host executes them in parallel, the read might happen before the write, or the write might corrupt the file. The LLM assumes sequential execution but the host parallelizes them for speed, leading to non-deterministic failures.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-16T00:18:22.754579+00:00— report_created — created