Lint AI agent instruction files (SKILL.md, CLAUDE.md, AGENTS.md, GEMINI.md), tool definitions, system prompts, and agent configs with the deterministic LintLang CLI. Use when writing, editing, or reviewing agent instructions to catch ambiguous tool descriptions, missing stop conditions, schema/description mismatches, mixed output formats, or prompts embedded in Python before they reach runtime.
Install
npx skills add hermes-labs-ai/lintlang --skill lintlangnpx skills add hermes-labs-ai/lintlang --skill lintlang -a claude-code -gnpx skills add hermes-labs-ai/lintlang --skill lintlang -a codex -ggemini skills install https://github.com/hermes-labs-ai/lintlang.git --path skills/lintlanggh skill install hermes-labs-ai/lintlang lintlanggit clone --depth 1 https://github.com/hermes-labs-ai/lintlang /tmp/hermes-labs-ai__lintlang
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/hermes-labs-ai__lintlang/skills/lintlang ~/.claude/skills/lintlang # Claude Code
cp -R /tmp/hermes-labs-ai__lintlang/skills/lintlang ~/.agents/skills/lintlang # Codex, Cursor, Gemini CLI, Copilot, OpenCode