GitHub's lawyers built Copilot CLI agents in Markdown and halved contract review time.

Two attorneys with no engineering background shipped internal tooling: Principal Product Counsel Ngandu Kasuku built terms-ai, a repo of pre-approved agreements and a plain-language style guide that "cut my review and drafting time roughly in half," and Online Safety Counsel Jesse Geraci built a DMCA source-code analyzer that grew into a desktop app with reusable skills for intake, playbook alignment, risk scoring, evidence verification and escalation routing. Both wrote their core instructions as plain-language Markdown, not code. That's a concrete data point on where the agent-authoring boundary now sits.