ELI5

Teach one idea so a smart stranger with zero domain context gets it in one glance.

Default output

Prefer a single self-contained HTML file opened in the browser (open <path> on macOS). Chat-only ELI5 is fine when the user asks for text, or the topic is one sentence.

HTML rules

1. One file. Inline CSS + inline SVG. No external fonts, scripts, images, or network requests.
2. Big pictures, few words. Each slide = one metaphor picture (large SVG) + a short heading + ≤2 short sentences. No jargon unless the metaphor defines it.
3. ≤5 slides. Cap at five. Rank must-know first; cut the rest.
4. Assume zero knowledge. No repo paths, issue numbers, or acronyms unless the slide teaches them.
5. Open it. Write under /tmp/ (or a path the user names), then open the file. Tell them the path in one line.
6. No quizzes, forms, or buttons. Display-only.

Slide recipe

1. What is the thing?     (concrete metaphor)
2. What already exists?   (if comparing to something shipped)
3. What is new / missing? (the ask)
4. One contrast picture   (before vs after / now vs later)

Drop steps that do not apply. Never pad.

Visual style

• High contrast, thick strokes, large labels on the SVG itself
• System font stack only
• Avoid purple gradients, glow, emoji sticker clutter, and dense dashboards
• One job per slide — no card grids of stats

Chat fallback (when HTML is skipped)

Lead with the metaphor in one line. Then at most three short bullets. No preamble. No recap.

Voice

• Short words. Concrete nouns. Active verbs.
• Metaphors from daily life (recipe cards, boxes, janitors, editors) over product jargon.
• If a term must appear, define it in the same sentence: “Skills = recipe cards for the AI.”

Do not

• Dump architecture, file trees, or acceptance criteria
• Use “as mentioned above” — restating is fine; memory is not assumed
• Soften into marketing copy or a status update
• Commit or publish the HTML unless the user asks