Custos Labs
Custos Labs

Tools that make AI coding agents do the job right.

Small, tested setups for people building with Claude Code, Cursor and other agents. Every claim is measured, and the method is included.

Products

Godot 4 Agent Pack: blocks Godot 3 code and validates every edit
Available now

Godot 4 Agent Pack

Rules your AI coding agent can't ignore. Hooks that block Godot 3 code before it's written, a headless validator with an honest exit code, and a lean 79-line CLAUDE.md.

Free · updated regularly

The best AI tool for each job

Our top 3 for coding, chat, research, images, video, voice, music, 3D, local models and game dev, plus notable new launches. Every pick links its source.

How we build

Measured, not promised

We test on real projects and publish the method and raw numbers, small samples included.

Enforced, not suggested

Agents treat instructions as context. Where it matters, we use hooks and checks that actually stop mistakes.

Free version first

Each pack has a free, open-source lite version so you can try the approach before you pay.