coding-mojo SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
coding-mojo from oaustegard/claude-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add oaustegard/claude-skills/coding-mojo@v0.2.1Pins v0.2.1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- oaustegard/claude-skills
- Path
coding-mojo/SKILL.md- Versions recorded
- 4
- Latest version
- v0.2.1, committed Mar 25, 2026
- First version recorded
- Mar 23, 2026
- Size
- 6,261 bytes
- Repository stars
- 158
- License
- MIT
Develop and run Mojo code in Claude.ai containers. Handles installation, compilation, and execution. Use when writing Mojo code, benchmarking Mojo vs Python, or when user mentions Mojo, Modular, or MAX. Routes to Modular's official skills (mojo-syntax, mojo-python-interop, mojo-gpu-fundamentals) for language-specific correction layers.
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
# Mojo Development in Claude.ai Containers
Mojo is a systems programming language from Modular that combines Python-like syntax with C-level performance. This skill handles container setup and execution. For **language syntax and semantics**, defer to Modular's official skills at `github.com/modular/skills` — they are authoritative correction layers for pretrained knowledge.
## Installation
Install once per session (~20s via uv, ~500MB). Skip if already installed.
```bash
if mojo --version 2>/dev/null; then
echo "Mojo already installed"
else
# Compiler binary without ML extras (~350MB saved)
uv pip install --system --break-system-packages modular --no-deps 2>&1 | tail -5
# Entry points + base deps (numpy, pyyaml, rich)
uv pip install --system --break-system-packages mojo max 2>&1 | tail -5
mojo --version
fi
```
Verify:
```bash
echo 'def main(): print("Mojo ready")' > /tmp/_verify.mojo && mojo /tmp/_verify.mojo
```
## Running Mojo Code
**Quick tests** (write to temp file):
```bash
cat > /tmp/test.mojo << 'EOF'
def main():
print("hello")
EOF
mojo /tmp/test.mojo
```
**File execution** (JIT compile + run, ~1.4s overhead):
```bash
…Read the whole file at its exact version.
How to install
mdr add oaustegard/claude-skills/coding-mojo@sha256:76e0f5d429332fb1The line at the top of this page pins the label v0.2.1, 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_bahiqdm2qky3f5ss)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between Mar 23, 2026 and Mar 25, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v0.2.1 latest | 2026-03-25 | 0a11991 | 6,261 B | A | view · diff |
| v0.2.0 | 2026-03-23 | 9812e3c | 6,073 B | A | view · diff |
| v0.1.0 | 2026-03-23 | fa0897f | 5,000 B | A | view · diff |
| git:20260323.bfc774c | 2026-03-23 | bfc774c | 4,911 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 (6261 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
oaustegard/claude-skills · 158 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_bahiqdm2qky3f5ss GET https://markdownregistry.com/api/v1/resolve?ref=oaustegard/claude-skills/coding-mojo GET https://markdownregistry.com/api/v1/blob/76e0f5d429332fb1065c83b74e1e4738a1cadc7b9b23514d94451f07236e6bac
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.
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