Use hermes-tools for the probe's managed server configuration and tool-call target so it exercises the endpoint receiving worker overrides. Leave intentional user-defined hermes-mcp fixtures unchanged.
Scope-risk: narrow
Tested: Three complete isolated probe runs on macOS with Codex CLI 0.137.0; related regression selection 202 passed, 2 existing skips; Ruff and repository static checks
Not-tested: Full repository suite, native Linux/Windows, hosted CI, cloud-model turns