# NousResearch/hermes-agent · Fix oversized argument list crashing parallel test runner

## Open now

- Nothing open on GitHub.

When passing a full suite of test files via --files, the combined argv exceeded the OS MAX_ARG_STRLEN limit (128 KiB), causing E2BIG before the runner could start. The fix reads large file lists from disk instead of passing them directly on the command line.

## 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 #116822. Verify it addresses your case.
- **Recommended:** read PR #116822 (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: `resolved` · deciding PR(s): `pr-116822`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #116229: run_tests_parallel.py: --files cannot take a whole-suite list — single argv exceeds MAX_ARG_STRLEN (128 KiB), E2BIG before the runner starts

## Prior & competing PRs

- **#116822: fix(tests): run_tests_parallel takes the explicit file list from a file, whole-suite lists no longer hit E2BIG (#116229, salvage #116243)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `scripts/run_tests_parallel.py`, `tests/scripts/test_run_tests_parallel.py`
- **#116243: fix(tests): let run_tests_parallel take the explicit file list from a file**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `11975e61db8a`, `#116822`, `#116229`, `#116243`
- **#116248: fix(test-runner): read large file lists from disk**. closed without merge
  - maintainer direction: category `implemented_elsewhere`; implication `superseded`; refs `11975e61db8a`, `#116822`, `#116229`, `#116243`

## Fix status

- Merged to main in PR #116822 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-20`.