Fix Markdown fence boundary tracking in skills guard
Cluster 112129. Data as of
Nothing open on GitHub. Fix merged in #112198 on 16 Sep 2026. Check it covers your case.
The short answer
- Known?
- Yes. 4 related items grouped here, 1 issue already closed.
- Fix event
- A fix was merged to main in PR #112198. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
resolved, deciding PR #112198. That is separate from the fix event. - Still open
- 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.
Open issues0
Open PRs0
Fixes on record
-
#112198 fix(skills): scanner no longer skips code hidden behind mismatched fences or temp-root `..` paths (#112129, #111335, salvage #112130, #111340)
files:
tests/tools/test_skills_guard.py,tools/skills_guard.py
2 PRs closed without merging
From the close comments: merged via another change 1 · superseded by another PR 1
Closed issues · 1
- Closed#112129[Bug][security] Skills guard: prose-link masking exemption is exploitable via mismatched markdown fences
How this cluster was grouped
-
Link evidence (
structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference. -
Pairwise link density
0.50: the share of item pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36.1.00means every pair is linked.
Pick up a Lab task
Check whether a fix covers the open issues here, with your own agent. Bring back evidence for maintainers.
Open the LabAt a glance
- Merged PRs
- #112198
- Closed issues
- 1
- Attempts
- 2 PRs closed without merging
- Fix link checked
- 16 Sep 2026