# Arc Gate

> Arc Gate — 9hannahnine-jpg-arc-gate. Use this tool when you need to secure interactions between clients and upstream servers, protecting against prompt injection attacks and capability abuse. The Arc Gate sits at the trust boundary, intercepting tool calls and blocking malicious requests based on configurable policy modes. It forwards sanitized results back to the client, supporting various use cases with tailored policy modes for different agent types.

Canonical page: https://skillsregistry.net/skills/9hannahnine-jpg-arc-gate  
JSON: https://api.skillsregistry.net/v1/skills/9hannahnine-jpg-arc-gate

## Description

Sits between MCP clients and upstream MCP servers as a security layer, intercepting tool calls to block prompt injection attacks and capability abuse at the trust boundary. Supports multiple policy modes — balanced, browser agent, finance agent, RAG assistant, and strict — tailored to different agent use cases. Runs as a wrapper around an upstream MCP server, forwarding sanitized results back to the client.

## Trust

- **Trust score (0–1):** 0.65
- **Verification tier:** scanned
- **Last scanned:** 2026-08-30

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** browser-automation
- **Updated:** 2026-08-31

## Source

- **Source listing:** [PulseMCP](https://www.pulsemcp.com/servers/9hannahnine-jpg-arc-gate)
- **Repository:** <https://github.com/9hannahnine-jpg/arc-gate-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "9hannahnine-jpg-arc-gate"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/9hannahnine-jpg-arc-gate` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/9hannahnine-jpg-arc-gate/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt