What is security-scanning?

A scanner for finding secrets, personal information, prompt injection, dangerous patterns, and suspicious MCP servers. MCP servers provide tools that an AI agent can call.

Use it to scan content, check strings for secrets or personal information, vet MCP server manifests and permissions, and detect typosquatting such as a fake package name resembling a trusted one.

It helps catch exposed credentials, sensitive data, malicious instructions, and unsafe tool integrations before they are processed or installed.

security-scanning — Skill for Claude Code and Codex by Tyox-all

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 Tyox-all/Weave_Protocol --skill mund

Clone the repo

git clone --depth 1 https://github.com/Tyox-all/Weave_Protocol

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/tyox-all/weave_protocol/mund/github.svg)](https://agentmods.dev/skills/tyox-all/weave_protocol/mund)

Your own site

<a href="https://agentmods.dev/skills/tyox-all/weave_protocol/mund"><img src="https://agentmods.dev/badge/skills/tyox-all/weave_protocol/mund/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/tyox-all/weave_protocol/mund"><img src="https://agentmods.dev/badge/skills/tyox-all/weave_protocol/mund.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 468 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 original 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.

Model	Per session	Once invoked
Fable 5.1	$0.00046	$0.00468
Opus 5.5	$0.00018	$0.00187
Sonnet 5.5	$0.00009	$0.00094
Haiku 4.5	$0.00005	$0.00047

Measured 1mo ago against content hash df00abdd137f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

security-scanning 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 1mo ago.

The scan reads SKILL.md. This mod also ships 43 executable files (src/analyzers/code-analyzer.ts, src/analyzers/exfiltration-detector.ts, src/analyzers/index.ts, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

mund/SKILL.md · 61 lines

What it actually says

Security Scanning with Mund

Overview

Mund detects security issues in content and MCP servers. Use it before processing untrusted input or installing MCP servers.

MCP Tools

Tool	Purpose
`mund_scan`	Scan content for all security issues
`mund_check_secret`	Check if a string is a secret
`mund_check_pii`	Detect personally identifiable information
`mund_scan_mcp_server`	Vet MCP server manifest before install
`mund_check_typosquatting`	Detect name squatting attacks
`mund_audit_mcp_permissions`	Analyze MCP tool capabilities

Quick Examples

Scan for secrets

mund_scan({ content: "API key: sk-abc123..." })
→ { safe: false, issues: [{ rule_id: "openai_api_key", severity: "critical" }] }

Vet MCP server

mund_scan_mcp_server({ manifest: "<server.json>" })
→ { recommendation: "DO_NOT_INSTALL", issues: [...] }

Check typosquatting

mund_check_typosquatting({ name: "githib-mcp" })
→ { is_suspicious: true, similar_to: ["github"] }

Detection Categories

Secrets: API keys, tokens, private keys, database URLs
PII: SSN, credit cards, emails, phone numbers
Injection: Prompt injection, jailbreak, instruction override
MCP Servers: Malicious descriptions, typosquatting, dangerous permissions

When to Use

Before processing any untrusted input
Before adding MCP servers to claude_desktop_config.json
When handling user-provided content
Periodically in long-running conversations

What ships with it

60 files 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.

1mo ago First seen · 61 lines · 46 tokens per session scan A df00abdd137f

Subscribe to this mod's changes

security-scanning is a skill published in the GitHub repository Tyox-all/Weave_Protocol (0 stars, last pushed 2d ago), licensed Apache-2.0. It adds 46 tokens to every session and 468 once invoked, about $0.0002 per session on Opus 5.5. 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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