# NousResearch/hermes-agent · Fix Markdown fence boundary tracking in skills guard

## Open now

- Nothing open on GitHub.

These items address a bug where mismatched or malformed Markdown code fences could be exploited to bypass the skills guard's prose-link masking exemption. The fixes add correct CommonMark fence boundary tracking to prevent content hidden behind such fences from being overlooked by the scanner.

## 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 #112198. Verify it addresses your case.
- **Recommended:** read PR #112198 (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-112198`. 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evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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

- #112129: \[Bug\]\[security\] Skills guard: prose-link masking exemption is exploitable via mismatched markdown fences

## Prior & competing PRs

- **#112198: fix(skills): scanner no longer skips code hidden behind mismatched fences or temp-root \`..\` paths (#112129, #111335, salvage #112130, #111340)**. merged to main · fix tier `verified`
  - maintainer direction: category `merged`
  - files: `tests/tools/test_skills_guard.py`, `tools/skills_guard.py`
- **#112130: fix(skills): CommonMark fence tracking in skills_guard prose-link exemption (#112129)**. closed without merge
  - maintainer direction: category `merged_via`; implication `superseded`; refs `2588c908e7898c93f76e9872ffa8045dbf1c3937`, `#112198`
- **#112134: fix(security): track Markdown code fence boundaries**. closed without merge
  - maintainer direction: category `superseded_by_pr`; implication `superseded`

## Fix status

- Merged to main in PR #112198 (cited above). No release data is tracked. Verify downstream.
- Fix last verified (merged) `2026-09-16`.