Agent Skills: lisa-coding-agent-parity

This skill should be used when Lisa needs to research feature parity across the coding agents it can install into — Claude Code, Codex, Cursor (cursor-agent), Antigravity (agy), and GitHub Copilot. It produces a four-part research artifact (universal feature catalog, support matrix, plugin-distributability matrix, polyfill designs for the gaps) drawn from both web/documentation research and direct CLI queries. RESEARCH ONLY — implementation lives in the sibling skill `lisa-coding-agent-parity-implement`, which consumes this artifact. Use whenever the agent fleet changes (new CLI added, existing CLI ships a capability), when Lisa needs an updated picture of where parity stands, or before opening any implementation work that touches multiple agents.