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InjectScan

by agentgate-builder · remote · no sign-in to list tools · v0.1.0 · published by GitHub user agentgate-builder

Prompt-injection scanner for agents: risk score, categories and spans for text, pages, MCP tools

Changes · 1
CompareRegistry entry

1 tool: 1 change things.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http x402-prompt-injection-scan https://injectscan.agentgate.workers.dev/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

1 tool

Changes things 1Claude Code: ask
  • scan_textCheck text your agent is about to read (a web page, email, document, tool result or another agent's message) for prompt injection before acting on it.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Check text your agent is about to read (a web page, email, document, tool result or another agent's message) for prompt injection before acting on it. Returns risk_score 0-100, verdict (safe | suspicious | malicious), categories and the exact matching spans. Free tier: up to 2000 characters; longer text, URLs and MCP tool definitions via the paid x402 endpoint.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • idempotentHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http x402-prompt-injection-scan https://injectscan.agentgate.workers.dev/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__x402-prompt-injection-scan__scan_text"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as x402-prompt-injection-scan. Review it before you use it.