# Documentation Validation > Use to verify policy behavior, Caracal policy inputs, policy result contract, OPA syntax, policy versions, policy sets, simulation, and activation against documentation. Use when this capability is needed. - Skill: `tomevault-io/documentation-validation-2` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/documentation-validation-2` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/documentation-validation-2/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Docs & Writing - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/documentation-validation-2 --- # Documentation Validation ## Procedure 1. Check Caracal documentation first. 2. Check Caracal policy schemas when field shape matters. 3. Check OPA/Rego documentation when syntax or language behavior matters. 4. Compare documentation with existing policies only after official docs. 5. List verified facts, conflicts, and unknowns. Documentation overrides assumptions and memory. --- > Source: [Garudex-Labs/caracal](https://github.com/Garudex-Labs/caracal) — distributed by [TomeVault](https://tomevault.io).