nixos

Use the GitHub CLI (`gh`) to inspect repositories, issues, pull requests, workflows, releases, and related metadata from GitHub. Use when GitHub information or actions are needed and `gh` is available.

Use the `obsidian` CLI for non-interactive vault inspection and debugging, especially links, backlinks, and developer console checks after edits. Always use this skill when working in Obsidian vaults.

Write TikZJax-compatible TikZ snippets for browser-based environments such as Obsidian and websites. Use when you need the agent to produce TikZ that is likely to render under TikZJax.

Work with Zig projects, builds, tests, and stdlib/API discovery. Use when editing Zig code, troubleshooting build/test failures, locating the stdlib with `zig env`, or validating code against the active Zig version instead of relying on memory.