race-condition SKILL.md skillA
race-condition 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/race-condition@git:20261016.df7fb32Pins git:20261016.df7fb32 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/race-condition/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261016.df7fb32, committed Oct 16, 2026
- First version recorded
- Sep 11, 2026
- Size
- 4,310 bytes
- Repository stars
- 25
- License
- Apache-2.0
Classify race condition evidence — TOCTOU (access→fopen), shared-state (lock→unlock→mutate), and classic shared-variable data races in pthread code. Maps to CWE-362.
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
## Race Condition Analysis (CWE-362) ### Evidence Patterns #### TOCTOU: Filesystem (CWE-362) - **RACE_CONDITION event** with category `toctou` - Pattern: `access(path, ...)` check followed by `fopen(path, ...)` / `open(path, ...)` - Time-of-check to time-of-use window allows symlink attack or file swap #### TOCTOU: Shared State (CWE-362) - **RACE_CONDITION event** with category `toctou_shared_state` - Pattern: `mutex_lock` → `check` → `mutex_unlock` → `mutate` - Check and mutation not atomic; another thread can change state between unlock and mutate #### Classic Data Race (CWE-362) - **RACE_CONDITION event** with category `shared_data_race` - Pattern: a file-scope variable accessed by two or more `pthread_create` thread functions, with at least one write, and no `pthread_mutex_lock`/`unlock` scope around the access - Examples: `g_shared_counter++` in two threads, writer/reader pairs on `g_flag`/`g_data` - The event carries `thread_functions`, `thread_instances` and `write_line` properties Evidence file fragments (per category): …
Read the whole file at its exact version.
How to install
mdr add dannyan/secguard-clang/race-condition@sha256:07c1941850410cd5The line at the top of this page pins the label git:20261016.df7fb32, 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_7m3eybhnjgib6eeo)
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Versions
The registry has recorded 5 versions of this file, between Sep 11, 2026 and Oct 16, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.df7fb32 latest | 2026-10-16 | df7fb32 | 4,310 B | A | view · diff |
| git:20260914.1ef9fbc | 2026-09-14 | 1ef9fbc | 3,720 B | A | view · diff |
| git:20260913.46c999d | 2026-09-13 | 46c999d | 3,792 B | A | view · diff |
| git:20260913.4c35c60 | 2026-09-13 | 4c35c60 | 3,008 B | A | view · diff |
| git:20260911.6b913be | 2026-09-11 | 6b913be | 2,992 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 (4310 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_7m3eybhnjgib6eeo GET https://markdownregistry.com/api/v1/resolve?ref=dannyan/secguard-clang/race-condition GET https://markdownregistry.com/api/v1/blob/07c1941850410cd501570904ad309a185cd4b7358b0046eef7842414cca26ecd
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.
More from dannyan/secguard-clang
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