# Skill Include > Module availability - Skill: `daocloud/skill-include` (Agent Skill) - Install (CLI): `npx skillmds@latest add daocloud/skill-include` - Raw SKILL.md: https://api.skillmd.com/api/skills/daocloud/skill-include/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: daocloud (https://skillmd.com/u/daocloud) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/daocloud/skill-include --- ## Module availability The catalog (`dce commands` / `dce search`) lists every module `dce` was built with, **regardless of which modules are actually installed on the target host**. A command appearing in the catalog does not guarantee its module is deployed. A `404` / route-not-found at the **module path level** (the API route itself does not exist, not a specific object) is ambiguous: the module may not be installed, or the path/version may be wrong. On such a `404`, **actively confirm before concluding** by running `dce global-management about list-g-product-versions -o json` (global-management is the always-present base module, so this is always available). Then: - **Module not in the list** → it is not installed on this host. Do not retry, do not try sibling commands in the same module, and do not tell the user the capability exists — state plainly that the module is not installed. - **Module in the list** → it is installed, so the `404` is not a missing module. Re-check the exact path and params with `dce commands show --json` (likely a wrong path/version or a resource-level not-found); do not report the module as missing. - **Resource-level `404`** (a specific ID/name on an otherwise-working module) means **that object** doesn't exist, not that the module is missing — handle that normally.