# NousResearch/hermes-agent · Fix AF_UNIX socket path length limit in code execution

## Open now

- Nothing open on GitHub.

These items address an OSError caused by RPC socket paths exceeding the AF_UNIX sun_path limit, particularly when TMPDIR is long on Linux. The fix anchors the socket path in /tmp to keep it short enough.

## TL;DR

- 4 member(s): 0 open issue(s), 1 closed issue(s), 0 open PR(s), 1 merged PR(s), 2 PR(s) closed without merging.
- A fix was merged to main in PR #115939. Verify it addresses your case.
- **Recommended:** read PR #115939 (and any competing PRs below) before filing. Confirm the merged change covers your symptom.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.50`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Closed / duplicate issues

- #61043: execute_code sandbox fails with OSError: AF_UNIX path too long when TMPDIR is long on Linux

## Prior & competing PRs

- **#115939: Hermes stops using /tmp: owned scratch dir, TMPDIR at boot, prompt line, CI lint**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `.github/workflows/lint.yml`, `CONTRIBUTING.md`, `acp_adapter/server.py`, `agent/copilot_acp_client.py`, `agent/prompt_builder.py`, `apps/desktop/README.md`, `apps/desktop/e2e/group-chat-code-block-and-media.spec.ts`, `apps/desktop/e2e/group-create-gate-remote-roster.spec.ts`, `apps/desktop/e2e/group-room-member-editing.spec.ts`, `apps/desktop/e2e/group-transcript-mentions-reply-to.spec.ts`, `apps/desktop/e2e/group-transcript-owner-meta.spec.ts`, `apps/desktop/e2e/group-turn-integrity.spec.ts`, `apps/desktop/scripts/perf/README.md`, `apps/desktop/scripts/perf/gateway_attach_bench.py`, `apps/desktop/scripts/perf/scenarios/multitab.mjs`, `apps/desktop/scripts/profile-model-picker.mjs`, `apps/desktop/scripts/profile-typing-lag.md`, `apps/desktop/src/app/chat/short-session-hang-repro.tsx`, `evals/botmode-dm-delivery/probe-cron-root.spec.ts`, `evals/botmode-dm-delivery/probe-dm-delivery.spec.ts` (+180 more)
- **#61062: fix(execute_code): anchor RPC socket in /tmp to stay under AF_UNIX sun_path limit**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `51dd1970afa`, `#115939`, `#61043`
- **#61551: fix(code-exec): keep RPC socket path short**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `#61062`

## Fix status

- Merged to main in PR #115939 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-19`.
- Subsystem: `environments`