The June 27 companion story starts with commit b0f44d3, where kshitijk4poor changed the gateway runner so a per-turn session key is no longer written into os.environ["HERMES_SESSION_KEY"].
The human arc is maintainer repair work at the edge of trust: one contributor turned a race between concurrent gateway sessions into code comments and tests that future reviewers can inspect.
The public trail
The commit message says the old write could let one gateway session clobber another because os.environ is process-global. A tool worker that lacked its context variable could then fall back to the wrong session key and route a command-approval prompt to the wrong thread.
The patch keeps gateway routing on context variables instead. In gateway/run.py, the new comment names the failure mode directly and says the gateway deliberately does not write HERMES_SESSION_KEY inside the shared process.
Why this contribution matters
The test file adds regression cases for the practical operator question: when session A and session B are both active, does session A's dangerous command wait in session A's queue, and does approving session A leave session B blocked?
That is people-centered source work, not personality coverage. It credits the public handle for making a failure legible, while keeping the claim to professional activity visible in the repository.
The conversation to open
The constructive question for Hermes is whether approval routing bugs like issue #24100 should become a visible release-note category for operators running agents through multiple chat or gateway threads.
The fairness limit is that this patch proves one source-level session-key repair and regression suite. It does not prove every gateway adapter, subprocess path, or approval edge case is now closed.