radamsa

radamsa is a skill for Claude Code, Codex from AeonDave/malskill. It costs 19 tokens per session (462 once invoked), scanned A, original, no licence file.

A general-purpose mutation engine that creates malformed or unusual test inputs from existing data.

In plain words
What is it for?
Use it to generate cases for fuzz testing parsers, file handlers, protocols, and other input-processing code.
Why use it?
It helps expose how software behaves when input is damaged, unexpected, or deliberately difficult to process.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it to generate cases for fuzz testing parsers, file handlers, protocols, and other input-processing code.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aeondave/malskill/radamsa
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add AeonDave/malskill --skill radamsa
Clone the repo
git clone --depth 1 https://github.com/AeonDave/malskill

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for radamsa

README.md
[![agentmods](https://agentmods.dev/badge/skills/aeondave/malskill/radamsa/github.svg)](https://agentmods.dev/skills/aeondave/malskill/radamsa)
Your own site
<a href="https://agentmods.dev/skills/aeondave/malskill/radamsa"><img src="https://agentmods.dev/badge/skills/aeondave/malskill/radamsa/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for radamsa

Your own site · 80×15
<a href="https://agentmods.dev/skills/aeondave/malskill/radamsa"><img src="https://agentmods.dev/badge/skills/aeondave/malskill/radamsa.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 462 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00019 $0.00462
Opus 5 $0.00010 $0.00231
Sonnet 5 $0.00004 $0.00092
Haiku 4.5 $0.00002 $0.00046

Measured 5d ago against content hash a4828298785c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

radamsa scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

offensive-tools/fuzzing/radamsa/SKILL.md · 65 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 65 lines · 19 tokens per session scan A a4828298785c

Subscribe to this mod's changes

radamsa is a skill published in the GitHub repository AeonDave/malskill (18 stars, last pushed today), with no licence file. It adds 19 tokens to every session and 462 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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