demotime-authoring

demotime-authoring

A Claude Code plugin that ships a single skill, demotime-authoring, which helps you author DemoTime demo scripts — the YAML files (.demo/*.yaml) that drive DemoTime's VS Code extension, plus the slide markdown and insert files those scripts reference.

What the skill does

When you ask Claude to create, edit, or scaffold a DemoTime demo, the skill activates and:

• Generates new .demo/<name>.yaml files from a topic + outline.
• Edits existing demos, preserving scene ids.
• Scaffolds companion files (slides, inserts, custom themes) from templates.
• Loads only the action/layout/theme references relevant to your request.
• Validates against the canonical action set documented at https://demotime.show/actions/.

The skill knows every documented DemoTime action across 15 categories (91 action names total), every built-in slide layout (11), every built-in theme (7), and the CSS-variable surface for custom theming.

Installing

Add this repo as a Claude Code plugin marketplace, then install the plugin:

/plugin marketplace add marcduiker/demo-time-skill
/plugin install demotime-authoring@marcduiker-ai-marketplace

Or symlink the skill directly into your user skills folder:

ln -s "$(pwd)/skills/demotime-authoring" ~/.claude/skills/demotime-authoring

Layout

.claude-plugin/plugin.json              # plugin manifest
.claude-plugin/marketplace.json         # marketplace catalog (single-plugin)
skills/demotime-authoring/
  SKILL.md                              # always-loaded entry point
  references/                           # on-demand, one per action category + slides
  examples/                             # minimal, slide-walk, code-demo
  templates/                            # slide and insert stubs
scripts/
  build-known-actions.sh                # regenerate scripts/known-actions.txt
  validate-skill.sh                     # full validation pass

Validating after edits

./scripts/validate-skill.sh

This re-runs every consistency check: JSON manifest validity, action-reference structure, slide-authoring references, template frontmatter, example YAML parseability, and SKILL.md cross-references.

License

MIT