The best agent harness.
Trellis is an engineering framework that stores project specifications, tasks, and working memory in a repository so coding agents can follow consistent development practices across sessions. Teams use it to organize AI-assisted planning, implementation, review, and validation across multiple coding platforms. The catalogue entries provide Trellis commands, agents, hooks, skills, instructions, and settings.
This repository also configures its own agents. See what Trellis tells them →
Command Claude Code
Initialize a Trellis-managed development session. This platform has no session-start hook, so manually load the equivalent compact context by following these steps.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: