safety-critical-patterns SKILL.md skillA
safety-critical-patterns from athola/claude-night-market is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add athola/claude-night-market/safety-critical-patterns@git:20260921.ad5ceb4Pins git:20260921.ad5ceb4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- athola/claude-night-market
- Path
plugins/pensive/skills/safety-critical-patterns/SKILL.md- Versions recorded
- 6
- Latest version
- git:20260921.ad5ceb4, committed Sep 21, 2026
- First version recorded
- May 29, 2026
- Size
- 5,928 bytes
- Repository stars
- 342
- License
- MIT
Applies NASA Power of 10 rules for safety-critical verifiable code. Use when auditing financial, medical, or high-reliability system code.
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
# Safety-Critical Coding Patterns
Guidelines adapted from NASA's Power of 10 rules for safety-critical software.
## When to Apply
**Full rigor**: Safety-critical systems, financial transactions, data integrity code
**Selective application**: Business logic, API handlers, core algorithms
**Light touch**: Scripts, prototypes, non-critical utilities
> "Match rigor to consequence" - The real engineering principle
## When NOT To Use
- Ordinary application code, where these defensive checks become the
bloat that `prefer-invariants-over-fallbacks` targets (use
`conserve:code-quality-principles`)
## The 10 Rules (Adapted)
### 1. Restrict Control Flow
Avoid `goto`, `setjmp/longjmp`, and **limit recursion**.
**Why**: Ensures acyclic call graphs that tools can verify.
**Adaptation**: Recursion acceptable with provable termination (tail recursion, bounded depth).
### 2. Fixed Loop Bounds
All loops should have verifiable upper bounds.
```python
# Good - bound is clear
for i in range(min(len(items), MAX_ITEMS)):
process(item)
# Risky - unbounded
while not_done: # When does this end?
process_next()
```
…Read the whole file at its exact version.
How to install
mdr add athola/claude-night-market/safety-critical-patterns@sha256:6ae8c254316ea61eThe line at the top of this page pins the label git:20260921.ad5ceb4, 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_lf2fpjjaiw6bebck)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between May 29, 2026 and Sep 21, 2026, about one every 23 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260921.ad5ceb4 latest | 2026-09-21 | ad5ceb4 | 5,928 B | A | view · diff |
| git:20260902.10cb166 | 2026-09-02 | 10cb166 | 5,974 B | A | view · diff |
| git:20260713.f98719b | 2026-07-13 | f98719b | 6,223 B | A | view · diff |
| git:20260620.844d8f7 | 2026-06-20 | 844d8f7 | 6,034 B | A | view · diff |
| git:20260605.c835eb2 | 2026-06-05 | c835eb2 | 6,051 B | A | view · diff |
| git:20260529.3cd8346 | 2026-05-29 | 3cd8346 | 5,071 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 (5928 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
athola/claude-night-market · 342 stars · license MIT · pushed 2026-10-16 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_lf2fpjjaiw6bebck GET https://markdownregistry.com/api/v1/resolve?ref=athola/claude-night-market/safety-critical-patterns GET https://markdownregistry.com/api/v1/blob/6ae8c254316ea61e1d21065991655beee9ed29eb84bcc170365133c9c96ab02a
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 athola/claude-night-market
Every file in athola/claude-night-market