aegis-memory-safety SKILL.md skillA
aegis-memory-safety from as-foss/aegis-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add as-foss/aegis-skills/aegis-memory-safety@git:20260826.9702747Pins git:20260826.9702747 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- as-foss/aegis-skills
- Path
skills/code/memory-safety/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260826.9702747, committed Aug 26, 2026
- First version recorded
- Aug 25, 2026
- Size
- 52,752 bytes
- Repository stars
- 16
- License
- Apache-2.0
Detects memory-safety defects in native code (C/C++/Objective-C and unsafe Rust/FFI boundaries) including buffer overflows and overreads, out-of-bounds index math, integer truncation and overflow in size handling, use-after-free and double-free, format-string misuse, uninitialized reads, and dangerous string-copy sinks.
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
## Scope & Objectives Inventory all native code in the repository, rank it by attacker reachability, then audit each parser, copy site, allocation site, and lifetime transition for memory-safety violations. Confirm or refute every candidate finding by answering one question per sink: who controls the length, and does that length match the allocation? - In scope (languages): C (.c/.h), C++ (.cc/.cpp/.cxx/.hpp), Objective-C / Objective-C++ (.m/.mm), Rust limited to `unsafe` blocks, `unsafe fn`, `unsafe impl`, FFI (`extern "C"`) surfaces, and `-sys` binding crates; mixed-language boundaries between any of these. - In scope (defect classes): buffer overflow (CWE-120/121/122); out-of-bounds read (CWE-125); index arithmetic from untrusted fields; integer truncation, signedness confusion, and size-calculation overflow (CWE-190); use-after-free (CWE-416); double free (CWE-415); dangling pointers including container-reallocation invalidation; NULL dereference reached from untrusted input (CWE-476); format-string flaws in the `printf` family (CWE-134); use of uninitialized or partially initialized memory (CWE-457); length-unit and ownership mistakes at FFI boundaries. …
Read the whole file at its exact version.
How to install
mdr add as-foss/aegis-skills/aegis-memory-safety@sha256:3e77d2c5146476c8The line at the top of this page pins the label git:20260826.9702747, 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_b5ivlmrksk2t4t5f)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Aug 25, 2026 and Aug 26, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260826.9702747 latest | 2026-08-26 | 9702747 | 52,752 B | A | view · diff |
| git:20260825.85624bc | 2026-08-25 | 85624bc | 52,753 B | A | view · diff |
| git:20260825.244c198 | 2026-08-25 | 244c198 | 51,631 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 (52752 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
as-foss/aegis-skills · 16 stars · license Apache-2.0 · pushed 2026-08-26 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_b5ivlmrksk2t4t5f GET https://markdownregistry.com/api/v1/resolve?ref=as-foss/aegis-skills/aegis-memory-safety GET https://markdownregistry.com/api/v1/blob/3e77d2c5146476c8a4cefedd40972cac7d7b3819b07f3a78c9967913e9890067
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.