What problem does it solve? After running trellis init, a project contains many generated files across .trellis/ and platform directories like .claude/, .cursor/, and .codex/. This Skill helps an AI understand that local Trellis architecture and modify the correct files when you want to change workflows, hooks, agents, skills, commands, or specs—without touching upstream source code or node_modules. ## Core Features & Use Cases - Architecture Guidance: Explains the three-layer local Trellis model (workflow, persistence, platform integration) and which files are safe to edit. - Platform File Map: Documents where skills, agents, hooks, and settings live for Claude Code, Cursor, Codex, Kiro, Gemini CLI, and other platforms. - Customization Playbooks: Step-by-step references for changing workflow phases, task lifecycle hooks, context injection, agent behavior, spec structure, and project-local conventions. - Use Case: You want the check agent to run a project-specific lint command. The Skill directs you to the platform's trellis-check agent file and explains how to keep .trellis/workflow.md in sync. ## Quick Start Ask the AI to change the Trellis workflow so that task creation is skipped for one-reply questions, and have it update the relevant files in this project.