Preventing Tool Exploitation: Centralizing Policy Across Repositories, APIs, and MCP Servers
Preventing Tool Exploitation: Centralizing Policy Across Repositories, APIs, and MCP Servers Preventing Tool Exploitation: Centralizing Policy Across Repositories, APIs, and MCP Servers Date: 13 November 2026 Executive Summary AI systems increasingly act through tools that read repositories, call APIs, execute workflows, and access MCP servers. Each tool expands the system’s authority and creates another location where an attacker, compromised identity, malicious instruction, or policy mistake can produce unauthorized impact. The business risk is not limited to prompt injection. The larger problem is fragmented control: one service validates identity, another interprets permissions, and a third records incomplete logs. Security teams should make a deliberate architectural decision to centralize authorization policy and policy evaluation while keeping enforcement close to each tool boundary. Centralization does not mean giving one component unrestricted control. It mea...