Plan file (.claude/plans/*-plan.md) reference — sections, per-file format, dependency graph, and converter mappings
$npx -y skills add gantisstorm/essentials-claude-code --skill plan-schemaInstalls into the current project.
Run `npx skills use "https://github.com/gantisstorm/essentials-claude-code" --skill "gantisstorm/essentials-claude-code/plan-schema"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/gantisstorm/essentials-claude-code" that are relevant to the current task. Run `npx skills add "https://github.com/gantisstorm/essentials-claude-code"` and select the relevant skills, then follow their instructions.