Parameter-Level Rules Proposed for MCP Tool Permission Control

Developers are exploring fine-grained MCP permission control beyond tool names, arguing that coding agents should be restricted by the parameters they pass to tools. An open-source implementation enabling parameter-level rules has already been shared.

2026-10-20 ~ 2026-10-21 · 2 related posts

• Argument-level permission rules for MCP tools: tool-name allowlists aren't enough — radim11 · 2026-10-20
• Granular tool permissions for coding agents: MCP argument-level rules shipped as open source — radim11 · 2026-10-21