Use this skill when managing packages, external dependencies, binaries, or CLI tools in a chezmoi dotfiles repository. Handles adding/updating/removing packages in .chezmoidata/packages.yaml, creating .chezmoiexternals/ organized files, pinning versions with Renovate automation, and selecting the correct package ecosystem (Homebrew, mise, Python, Docker, chezmoi externals).
Write, debug, and optimize custom GLSL shaders for the Ghostty terminal. Covers Ghostty's Shadertoy-compatible GLSL ES 3.0 dialect, its terminal-specific uniforms (cursor position and color, focus state, event timestamps), the unsupported Shadertoy uniforms, focus-gated performance patterns, and adapting shaders from shadertoy.com. Use when creating or editing a .glsl file for Ghostty, diagnosing a shader that renders black or fails to compile, or setting custom-shader config.
Reference for deeper Jujutsu (jj) topics beyond the everyday describe/advance workflow. Load when working with conflicts, the operation log, bookmarks, revsets, fork/PR workflows, colocated Git repos, multi-remote setups, divergent changes, or jj config. Also the place to look up fileset glob syntax, non-interactive `jj split`, and bookmark advancement.
Start work on a new issue or feature by creating a jj change on the up-to-date default branch with an optional named bookmark.
Describe and finalize work with jj-vcs — drafting a description for the current change, splitting mixed work into focused commits, and advancing to a clean working copy. Use when asked to commit, when finishing a unit of work, or when starting new work on top of undescribed changes.
Build comprehensive understanding of a problem by gathering context from GitHub issues, codebase exploration, git history, and linked references. Use when starting work on an issue or investigating a problem.
Design an implementation as a task graph with explicit dependencies, parallel phases, and agent team topology. Use after gathering context and agreeing on an approach, when the work is large enough that sequencing it badly costs real time.
Create a draft or ready pull request with gh for a jj revision — pushes the bookmark, reviews the full changeset, and drafts a title and body explaining why the change was made. Use when asked to open a PR.