Validation on Start AI Tools - Presented by Intent Solutionshttps://startaitools.com/tags/validation/Recent content in Validation on Start AI Tools - Presented by Intent SolutionsHugoen-USIntent Solutions. All rights reserved.Thu, 25 Jun 2026 21:56:37 -0600An Agent Allowlist Is a Comment Until a Gate Checks the Bodyhttps://startaitools.com/posts/agent-allowlist-consistency-gate/Thu, 18 Jun 2026 08:00:00 -0500https://startaitools.com/posts/agent-allowlist-consistency-gate/<p>A Claude Code agent declares the tools it is allowed to use in its frontmatter. That <code>tools</code> line looks like documentation — a courteous note about what the agent touches.</p> <p>It is not documentation. It is a runtime allowlist: tools not listed are <em>blocked at runtime</em>. The agent can write all the instructions it wants in its body about calling some MCP tool; if that tool isn&rsquo;t in the allowlist, the call never happens.</p>