deadlock SKILL.md skillA
deadlock 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/deadlock@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/deadlock/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261016.df7fb32, committed Oct 16, 2026
- First version recorded
- Sep 11, 2026
- Size
- 3,195 bytes
- Repository stars
- 25
- License
- Apache-2.0
Classify deadlock evidence — lock-order inversion and nested locking patterns. Maps to CWE-667.
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
## Deadlock Analysis (CWE-667) ### Evidence Pattern A deadlock candidate has: - **DEADLOCK event**: Lock-order inversion detected via lock graph cycle - Two or more threads acquire locks in different orders - Thread 1: `lock(A) → lock(B)`, Thread 2: `lock(B) → lock(A)` → cycle in lock graph - **deadlock**: the inversion site - **lock_pair**: this function locks A then B - **reverse_order**: the function that acquires the same locks in the opposite order ### Dangerous Patterns | Pattern | Risk | Why | |---------|------|-----| | `lock(A); lock(B);` in one function, `lock(B); lock(A);` in another | Deadlock | Lock-order inversion | | `lock(A); lock(B);` + `lock(B); lock(C);` + `lock(C); lock(A);` | Deadlock | 3-lock cycle | | `lock(A); ... lock(A);` (recursive without recursive mutex) | Deadlock | Self-deadlock | | `lock(A); lock(B);` with no timeout | Deadlock | No recovery possible | ### Safe Patterns (P0 Exclusion) | Safe Pattern | Why Safe | |---------------|----------| | All threads acquire locks in the same global order | No cycle in lock graph | | `pthread_mutex_timedlock()` with timeout | Can recover from deadlock | …
Read the whole file at its exact version.
How to install
mdr add dannyan/secguard-clang/deadlock@sha256:babf3b7fcc956466The 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_wta2fythtlmv4ccq)
1 badge image fetches in 30 days. What the badge shows.
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 | 3,195 B | A | view · diff |
| git:20260914.1ef9fbc | 2026-09-14 | 1ef9fbc | 3,029 B | A | view · diff |
| git:20260913.46c999d | 2026-09-13 | 46c999d | 3,101 B | A | view · diff |
| git:20260913.4c35c60 | 2026-09-13 | 4c35c60 | 2,498 B | A | view · diff |
| git:20260911.49608cf | 2026-09-11 | 49608cf | 2,474 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 (3195 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_wta2fythtlmv4ccq GET https://markdownregistry.com/api/v1/resolve?ref=dannyan/secguard-clang/deadlock GET https://markdownregistry.com/api/v1/blob/babf3b7fcc95646698d07f7beb589716edc76a830dc4e98a5bbbd71012039ab5
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.