action-validator

Validate agent tool calls against declared capabilities and file access scope.

13|6|Updated Apr 14, 2026

Search Tags:#validation #permissions #orchestration #governance #tool-calls #advisory #policy-cache

Ready to run

npx skills add https://github.com/baekenough/second-brain --skill action-validator

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: action-validator
Source: https://github.com/baekenough/second-brain/tree/main/.claude/skills/action-validator
Command: npx skills add https://github.com/baekenough/second-brain --skill action-validator

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Checks agent tool calls against declared capabilities, file access scope, and task contracts before execution to prevent out-of-scope actions.

Core Features & Use Cases

Advisory pre-action validation that does not block actions but emits warnings when attempts exceed declared scope or permissions.
Integration points for PreToolUse hooks, pipeline-guards, adversarial review, and orchestrator validation to enforce action-space legality.
Policy caching patterns to accelerate repeated decision paths in governance workflows.

Quick Start

Provide a pre-action validation request to verify a tool call against declared capabilities before execution.

Frequently Asked Questions about action-validator

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I validate agent tool calls before execution to prevent out-of-scope actions?▼

Validate agent tool calls against declared capabilities, file access scope, and task contracts prior to execution to keep actions in bounds. This advisory check emits warnings when attempts exceed declared permissions.

What is advisory pre-action validation and how does it govern agent permissions?▼

Advisory pre-action validation is a governance mechanism that checks tool calls against declared capabilities without blocking actions. It emits warnings when violations occur, ensuring agents stay within declared boundaries.

Can I use PreToolUse hooks to enforce file access scope and task contracts?▼

Yes, you can use optional PreToolUse hooks for pre-action validation. These hooks verify tool calls against declared capabilities and file access scope before execution, supporting orchestrator validations and governance reviews.

How do I accelerate repeated governance decision paths for tool call validation?▼

Use policy caching patterns to accelerate repeated decision paths in governance workflows. This optimizes pre-action validation by storing prior decisions for tool calls against declared capabilities and file access scope.

What is the best way to implement orchestrator validation for agent tool calls?▼

Implement pre-action validation checks across orchestrator validations and governance reviews to enforce action-space legality. This ensures tool calls match declared capabilities and file access scope before execution.

Does advisory validation block agent actions when file access scope is exceeded?▼

No, advisory validation does not block actions. It emits warnings when tool call attempts exceed declared scope or permissions, functioning as a pre-action check to keep agents in bounds without halting execution.