# Gate MCP tool calls behind deterministic policy enforcement with Intercept

> Use Intercept when an MCP-connected agent needs transport-layer policy enforcement for risky tools, argument limits, spend caps, hidden tools, or rate limits before calls reach the upstream server.

- Skill: `agentskillexchange/gate-mcp-tool-calls-behind-deterministic-policy-enforcement-` (Agent Skill)
- Install (CLI): `npx skillmds@latest add agentskillexchange/gate-mcp-tool-calls-behind-deterministic-policy-enforcement-`
- Raw SKILL.md: https://api.skillmd.com/api/skills/agentskillexchange/gate-mcp-tool-calls-behind-deterministic-policy-enforcement-/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: agentskillexchange (https://skillmd.com/u/agentskillexchange)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/agentskillexchange/gate-mcp-tool-calls-behind-deterministic-policy-enforcement-

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# Gate MCP tool calls behind deterministic policy enforcement with Intercept

Use Intercept when an MCP-connected agent needs transport-layer policy enforcement for risky tools, argument limits, spend caps, hidden tools, or rate limits before calls reach the upstream server.

## Prerequisites

Node.js or Go runtime, MCP client, upstream MCP server, YAML policy file

## Installation

No source-backed install or usage instructions could be extracted automatically. Review the upstream project before running this skill in a sensitive workflow.

- Source: https://github.com/PolicyLayer/Intercept

## Documentation

- https://github.com/PolicyLayer/Intercept

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/gate-mcp-tool-calls-behind-deterministic-policy-enforcement-with-intercept/)