dangerous-function SKILL.md skillA
dangerous-function from dannyan/secguard-clang is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dannyan/secguard-clang/dangerous-function@git:20261016.fb3b156Pins git:20261016.fb3b156 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dannyan/secguard-clang
- Path
extension/shared/skills/dangerous-function/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261016.fb3b156, committed Oct 16, 2026
- First version recorded
- Sep 13, 2026
- Size
- 6,911 bytes
- Repository stars
- 25
- License
- Apache-2.0
Classify dangerous-function evidence — a call to a banned libc/runtime function or a non-safe API that must be replaced (CWE-676).
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
## Dangerous Function Analysis (CWE-676) ### Evidence Pattern A dangerous-function candidate has: - **dangerous_function**: the banned call with its `category` (see the category table below) - The event's `variable` is the banned function called (`memcpy`, `strcpy`, `exit`, `atoi`, ...) - The event's `replacement` is the mandated safer API (best-effort) - **call_path**: The containing function is reachable from an entry point ### Detection Logic 1. Find every call to a function in the ban table 2. The table = a built-in layered set (below), PLUS the project's `secguard.toml` `[banned_functions]` `names` (category `config_banned`) 3. Emit `DANGEROUS_FUNCTION` for each call site, tagged with its category 4. `exit` / `ExitProcess` / `pthread_exit` / `ExitThread` are only reported OUTSIDE the program entry point (main/wmain/WinMain/wWinMain) 5. `inet_addr` with a compile-time-constant argument is suppressed (no injection / INADDR_NONE confusion without a runtime-controlled value) ### Categories | Category | Banned functions | Replacement | |----------|------------------|-------------| …
Read the whole file at its exact version.
How to install
mdr add dannyan/secguard-clang/dangerous-function@sha256:2937cb57f447d053The line at the top of this page pins the label git:20261016.fb3b156, 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_meuq5bcrnzv6egke)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Sep 13, 2026 and Oct 16, 2026, about one every 8 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.fb3b156 latest | 2026-10-16 | fb3b156 | 6,911 B | A | view · diff |
| git:20261014.4a6015e | 2026-10-14 | 4a6015e | 6,898 B | A | view · diff |
| git:20261014.e6ae7c5 | 2026-10-14 | e6ae7c5 | 6,166 B | A | view · diff |
| git:20260914.1ef9fbc | 2026-09-14 | 1ef9fbc | 2,679 B | A | view · diff |
| git:20260913.46c999d | 2026-09-13 | 46c999d | 2,751 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 (6911 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
dannyan/secguard-clang · 25 stars · license Apache-2.0 · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_meuq5bcrnzv6egke GET https://markdownregistry.com/api/v1/resolve?ref=dannyan/secguard-clang/dangerous-function GET https://markdownregistry.com/api/v1/blob/2937cb57f447d05302b6618497da02b5cfa4a034cc3eaa9465ed826978308597
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.