matrix-fit SKILL.md skillA
matrix-fit from jposluns/grc_library is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jposluns/grc_library/matrix-fit@git:20260924.48a0fe2Pins git:20260924.48a0fe2 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jposluns/grc_library
- Path
guardrails/skills/matrix-fit/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260924.48a0fe2, committed Sep 24, 2026
- First version recorded
- Sep 2, 2026
- Size
- 27,329 bytes
- Repository stars
- 3
- License
- CC-BY-SA-4.0
Cadenced semantic-fit audit of a compliance matrix and per-document framework-alignment tables. Catches the gate-blind "valid code, wrong control" class: a control identifier that EXISTS in its catalogue (so the existence gates pass it) but is the WRONG control for the row's document. Run after any batch that adds or edits mapping rows, once when a mapping surface reaches completion, and ad-hoc when a control-code citation is in doubt. It dispatches a semantic judge over the worklist the…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Matrix Fit (semantic-fit audit of control-code citations) ## Project wiring (the parent library's instantiation; adopters substitute their own) Portable procedure, concrete names. In the parent GRC library this skill runs with: - Existence gates (the mechanical floor this skill's semantic layer sits on): gates 48, 49, 54, 58, and 61 (CSA CCM/AICM catalogue membership, matrix row well-formedness, NIST CSF 2.0 Category codes, ISO/IEC 27001:2022 Annex A codes, COBIT 2019 and ISO 31000:2018 identifiers). - Recall-oriented pre-filter: `tools/audit-matrix-semantic-fit.py` (advisory, exits 0 whatever it finds (2 only on a refused input), explicitly not a gate). - Second worklist feeder: `tools/audit-stranded-matrix-code.py` (the advisory stranded-control-code scan; its confirmed strands are fit candidates). - Judged surfaces: `compliance/matrix-grc-compliance-alignment.md` and the per-document framework-alignment tables. - Reference base: the in-repo validator modules (`tools/ccm_aicm_reference.py`, `tools/nist_csf_reference.py`, `tools/cobit_iso31000_reference.py`, `tools/iso27001_reference.py`) and the `grc_library_ref` repository's source-text extracts. …
Read the whole file at its exact version.
How to install
mdr add jposluns/grc_library/matrix-fit@sha256:b14c1bf2e9e79d4fThe line at the top of this page pins the label git:20260924.48a0fe2, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_wmmpclkqxfk6bybi)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Sep 2, 2026 and Sep 24, 2026, about one every 6 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260924.48a0fe2 latest | 2026-09-24 | 48a0fe2 | 27,329 B | A | view · diff |
| git:20260912.f630987 | 2026-09-12 | f630987 | 27,212 B | A | view · diff |
| git:20260906.42d0eee | 2026-09-06 | 42d0eee | 23,787 B | A | view · diff |
| git:20260902.6ba8882 | 2026-09-02 | 6ba8882 | 23,791 B | A | view · diff |
| git:20260902.2545cff | 2026-09-02 | 2545cff | 23,372 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (27329 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
jposluns/grc_library · 3 stars · license CC-BY-SA-4.0 · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_wmmpclkqxfk6bybi GET https://markdownregistry.com/api/v1/resolve?ref=jposluns/grc_library/matrix-fit GET https://markdownregistry.com/api/v1/blob/b14c1bf2e9e79d4fd058184bc99ce7b5470a816668509fb97e19547ac715bd40
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.