ai-01-prompt-injection

ai-01-prompt-injection is a skill for Claude Code, Codex from vigilantshield/Claude-HunterKit. It costs 47 tokens per session (856 once invoked), scanned A, original, no licence file.

A security-testing skill focused on prompt injection, where malicious instructions try to manipulate an AI system into ignoring its intended rules.

In plain words
What is it for?
It is for authorized AI security assessments involving jailbreaks, indirect instructions, roleplay attacks, Unicode or encoding tricks, and multi-turn extraction tests.
Why use it?
It supports systematic testing of direct and hidden attacks, including encoded or multi-step attempts to extract information or change the model’s behavior.

Skill for Claude CodeCodex

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

Good fit It is for authorized AI security assessments involving jailbreaks, indirect instructions, roleplay attacks, Unicode or encoding tricks, and multi-turn extraction tests.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vigilantshield/claude-hunterkit/ai-01-prompt-injection
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 vigilantshield/Claude-HunterKit --skill ai-01-prompt-injection
Clone the repo
git clone --depth 1 https://github.com/vigilantshield/Claude-HunterKit

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 ai-01-prompt-injection

README.md
[![agentmods](https://agentmods.dev/badge/skills/vigilantshield/claude-hunterkit/ai-01-prompt-injection/github.svg)](https://agentmods.dev/skills/vigilantshield/claude-hunterkit/ai-01-prompt-injection)
Your own site
<a href="https://agentmods.dev/skills/vigilantshield/claude-hunterkit/ai-01-prompt-injection"><img src="https://agentmods.dev/badge/skills/vigilantshield/claude-hunterkit/ai-01-prompt-injection/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 ai-01-prompt-injection

Your own site · 80×15
<a href="https://agentmods.dev/skills/vigilantshield/claude-hunterkit/ai-01-prompt-injection"><img src="https://agentmods.dev/badge/skills/vigilantshield/claude-hunterkit/ai-01-prompt-injection.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 856 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. ✓ AI security review Sonnet 5 · 7 Sept 2026 📄 Read the review
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 $0.00047 $0.00856
Opus 5 $0.00023 $0.00428
Sonnet 5 $0.00009 $0.00171
Haiku 4.5 $0.00005 $0.00086

Measured 11d ago against content hash b17adb38c680, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

ai-01-prompt-injection 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 11d 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.

skills/ai/ai-01-prompt-injection/SKILL.md · 106 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

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 106 lines · 47 tokens per session scan E b17adb38c680

Subscribe to this mod's changes

ai-01-prompt-injection is a skill published in the GitHub repository vigilantshield/Claude-HunterKit (5 stars, last pushed 1mo ago), with no licence file. It adds 47 tokens to every session and 856 once invoked, about $0.0002 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 2026-08-31.

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