reflint for VS Code

Part of a set of zero-dependency CI tools for AI-agent repos — start with reflint.

Underlines commands, scripts, and paths in your AGENTS.md / llms.txt / CLAUDE.md that no longer exist — right in the editor, as you save. Powered by reflint.

When reflint cannot run at all, the extension says so on the first line of the file rather than showing nothing. An editor with no squiggles in it should mean the file is clean, not that the check never happened.

AGENTS.md などの中の「もう存在しないコマンド・パス」を、保存のたびにエディタ上で波線表示します。CI（reflint本体）で毎PR落とす前に、書いている最中に気づけます。

How it works

The extension runs reflint --format json on the file and turns each finding into a VS Code Warning diagnostic. That's it — the linting logic lives in reflint; this is a thin editor layer over its machine-readable output.

• Targets: files named AGENTS.md, llms.txt, CLAUDE.md
• Runs on: open + save
• Setting: reflint.codeBlocks (bool) — also check bare paths inside fenced code blocks

Requirements

@hyuga/reflint is bundled as a dependency, so no separate install is needed. Node ships with VS Code.

Install

From the VS Code Marketplace — search "reflint" in the Extensions view, or:

code --install-extension hyuga611.reflint-vscode

Also on Open VSX for VSCodium / Cursor / Windsurf.

npm install
npx @vscode/vsce package     # -> reflint-vscode-0.2.0.vsix
code --install-extension reflint-vscode-0.2.0.vsix

Related tools

Zero-dependency CI linters for repos where AI agents do the work. Each one fails the PR on something that breaks quietly.

MIT