atheris SKILL.md skillA

atheris from outlinedriven/odin-claude-plugin is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add outlinedriven/odin-claude-plugin/atheris@git:20260912.6e06ed3

Pins git:20260912.6e06ed3 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
outlinedriven/odin-claude-plugin
Path
plugins/odin-fuzzing/skills/atheris/SKILL.md
Versions recorded
6
Latest version
git:20260912.6e06ed3, committed Sep 12, 2026
First version recorded
Sep 3, 2026
Size
8,552 bytes
Repository stars
40
License
Apache-2.0

Use when a user needs coverage-guided fuzzing for Python code or a Python native extension using Atheris. Not for remote, credential, publish, deploy, or irreversible changes.

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

# Atheris

## Contract

| Field | Bound contract |
|---|---|
| Trigger | User needs coverage-guided fuzzing for Python code or a Python native extension using Atheris. |
| Authority | Reversible local: writes only the Atheris harness file, a corpus directory, and when required for dependency management `pyproject.toml` and `uv.lock` in the harness directory; rollback is deleting the harness file and corpus directory and restoring `pyproject.toml` and `uv.lock` to their pre-run state. No remote mutation. No source under test is mutated. |
| Side effect | Local writes: a `fuzz.py` (or named) harness, a `corpus/` directory of seed and crash artifacts, and a transient fuzzing process. |
| Done | Atheris executes an instrumented target through a deterministic `TestOneInput` harness, reports coverage, and any saved crash artifact reproduces the same failure when replayed. |

## Inputs

- Target: the Python function or module to fuzz, or the Python C extension to fuzz. Required.
- Target kind: pure Python, or native C extension. Required; it selects the instrumentation and build path.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add outlinedriven/odin-claude-plugin/atheris@sha256:c9f0e963fe82cce6

The line at the top of this page pins the label git:20260912.6e06ed3, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_ipxr37txqtl2etf5.svg)](https://markdownregistry.com/a/art_ipxr37txqtl2etf5)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 6 versions of this file, between Sep 3, 2026 and Sep 12, 2026, about one every 2 days.

versioncommittedcommitsizeaudit
git:20260912.6e06ed3 latest2026-09-12 6e06ed3 8,552 BA view · diff
git:20260904.2014e732026-09-04 2014e73 8,521 BA view · diff
git:20260904.18db8662026-09-04 18db866 8,642 BA view · diff
git:20260904.934dac82026-09-04 934dac8 8,699 BA view · diff
git:20260904.c9d13fd2026-09-04 c9d13fd 8,684 BA view · diff
git:20260903.31c840c2026-09-03 31c840c 8,075 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (8552 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

GitHub

outlinedriven/odin-claude-plugin · 40 stars · license Apache-2.0 · pushed 2026-09-29 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ipxr37txqtl2etf5
GET https://markdownregistry.com/api/v1/resolve?ref=outlinedriven/odin-claude-plugin/atheris
GET https://markdownregistry.com/api/v1/blob/c9f0e963fe82cce66bfead8e6e825c0d34ff702dfc60cbf5997888bd434ef32d

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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Every file in outlinedriven/odin-claude-plugin

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