c-audit SKILL.md skillA
c-audit from artalis-io/hull is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add artalis-io/hull/c-audit@git:20260826.b165db6Pins git:20260826.b165db6 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- artalis-io/hull
- Path
.claude/skills/c-audit/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260826.b165db6, committed Aug 26, 2026
- First version recorded
- Mar 3, 2026
- Size
- 42,452 bytes
- Repository stars
- 19
- License
- AGPL-3.0
Audit C code for security, safety, and memory management. Use when reviewing or hardening C modules.
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
# C Code Audit Skill Perform comprehensive security, safety, and quality audits on Hull C code. **Target:** $ARGUMENTS (default: all `src/cap/`, `src/runtime/`, and `include/hull/` files) ## Usage ``` /c-audit # Audit all source files /c-audit src/cap/hull_cap_db.c # Audit a specific file /c-audit --fix # Audit and apply fixes ``` ## Audit Categories ### 1. Memory Safety (Critical) | Issue | Pattern to Find | Severity | |-------|-----------------|----------| | Buffer overflow | `strcpy`, `strcat`, `sprintf`, `gets`, unbounded loops | Critical | | Unbounded string ops | `strlen`, `strcmp` on untrusted input | Critical | | Unsafe integer parsing | `atoi`, `atol`, `atof` (no error detection, no bounds) | High | | Integer overflow | `malloc(a * b)` without overflow check | Critical | | Use-after-free | Pointer used after `free()` | Critical | | Double-free | `free()` called twice on same pointer | Critical | | Null dereference | Pointer used without NULL check | High | | Uninitialized memory | Variables used before assignment | High | | Missing null terminator | String buffer not explicitly terminated | High | …
Read the whole file at its exact version.
How to install
mdr add artalis-io/hull/c-audit@sha256:f6a6856a460b1273The line at the top of this page pins the label git:20260826.b165db6, 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_qmlhntqrnzlbcyk6)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Mar 3, 2026 and Aug 26, 2026, about one every 44 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260826.b165db6 latest | 2026-08-26 | b165db6 | 42,452 B | A | view · diff |
| git:20260622.6c12635 | 2026-06-22 | 6c12635 | 42,520 B | A | view · diff |
| git:20260618.71e33d7 | 2026-06-18 | 71e33d7 | 26,822 B | A | view · diff |
| git:20260617.c7c8b29 | 2026-06-17 | c7c8b29 | 14,562 B | A | view · diff |
| git:20260303.0664b9f | 2026-03-03 | 0664b9f | 10,736 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 (42452 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
artalis-io/hull · 19 stars · license AGPL-3.0 · pushed 2026-10-25 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qmlhntqrnzlbcyk6 GET https://markdownregistry.com/api/v1/resolve?ref=artalis-io/hull/c-audit GET https://markdownregistry.com/api/v1/blob/f6a6856a460b1273856fea0434a0cb1c946531b8ba025b8dd3dd18d1245b4737
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.