Tools for builders & AI agents.
Free things we built and opened up — an interactive cost estimator and a set of zero-dependency CLIs. Use them yourself, or point your AI agent at them (every CLI speaks --json).
Interactive
AI Build Cost Estimator
Five questions, then a directional cost range for your AI feature, MVP, or production product — grounded in real 2026 numbers.
AI Readiness Scorecard
Six questions, then a readiness score and a tailored roadmap for whether your team is set up to build and ship AI.
Open-source CLIs
Zero dependencies, run offline, pull straight from GitHub — no install. Source: github.com/basedlsg/gcl-kit
Design system
A production design system — palette, fluid type scale, spacing, and motion principles.
npx github:basedlsg/gcl-kit designCold-outreach playbook
A multi-touch sequence, sender hygiene, and message templates that get replies.
npx github:basedlsg/gcl-kit outreachWebsite build prompts
The Hero-First framework for prompting AI code generators into award-quality sites.
npx github:basedlsg/gcl-kit promptsWant the real thing built?
These tools come out of the work we do every day. If you are building something real and want it designed, engineered, and shipped, that is exactly what Game Changer Labs does.