injection-checking

injection-checking is a skill for Claude Code, Codex from ShulkwiSEC/bb-huge. It costs 50 tokens per session (597 once invoked), scanned A, a copy of injection-checking, MIT.

A routing guide for injection testing, where attacker-controlled input reaches something that interprets it as code or a command. It helps distinguish browser, database, template, XML, network-request, and shell cases.

In plain words
What is it for?
Use it to decide whether to investigate cross-site scripting, SQL injection, server-side request forgery, XML injection, template injection, command injection, or related issues.
Why use it?
It reduces the risk of choosing the wrong testing method when the same input could lead to different vulnerability types.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to decide whether to investigate cross-site scripting, SQL injection, server-side request forgery, XML injection, template injection, command injection, or related issues.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/shulkwisec/bb-huge/injection-checking
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 ShulkwiSEC/bb-huge --skill injection-checking
Clone the repo
git clone --depth 1 https://github.com/ShulkwiSEC/bb-huge

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 injection-checking

README.md
[![agentmods](https://agentmods.dev/badge/skills/shulkwisec/bb-huge/injection-checking/github.svg)](https://agentmods.dev/skills/shulkwisec/bb-huge/injection-checking)
Your own site
<a href="https://agentmods.dev/skills/shulkwisec/bb-huge/injection-checking"><img src="https://agentmods.dev/badge/skills/shulkwisec/bb-huge/injection-checking/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 injection-checking

Your own site · 80×15
<a href="https://agentmods.dev/skills/shulkwisec/bb-huge/injection-checking"><img src="https://agentmods.dev/badge/skills/shulkwisec/bb-huge/injection-checking.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 597 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 100% copy Near-identical to another mod 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 $0.00050 $0.00597
Opus 5 $0.00025 $0.00298
Sonnet 5 $0.00010 $0.00119
Haiku 4.5 $0.00005 $0.00060

Measured 7d ago against content hash 5a6d03027213, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

injection-checking 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 7d 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.

Origin

This is a copy

100% identical to injection-checking — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/curated/injection-checking/SKILL.md · 50 lines

What it actually says

Injection Testing Router

This is the routing entry point when input reaches a dangerous interpreter or execution environment.

After confirming this is an injection-class issue, use it to decide whether it is mainly browser context, database, template engine, server-side requests, XML parsing, or system commands.

When to Use

  • Input reaches HTML, JS, SQL, templates, URL fetchers, XML parsers, or shell
  • You have not yet decided whether to start with XSS, SQLi, SSRF, XXE, SSTI, CMDi, or NoSQL
  • You need to choose the correct deep-topic skill based on input flow

Skill Map

  1. First identify the final sink of the input
  2. Then choose the topic skill that best matches that interpreter
  3. Small payload samples and quick triage are merged into each main skill; no extra payload router is needed
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. 7d ago First seen · 50 lines · 50 tokens per session scan A 5a6d03027213

Subscribe to this mod's changes

injection-checking is a skill published in the GitHub repository ShulkwiSEC/bb-huge (22 stars, last pushed 2mo ago), licensed MIT. It adds 50 tokens to every session and 597 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to injection-checking, differing in 0 lines, and is treated as a copy.