ppt-builder

name

ppt-builder

description

Generate dark-themed, professional PowerPoint (.pptx) files using python-pptx. Invoke this skill whenever the user says "create a PPT", "build slides", "make a presentation", "generate a deck", or wants to turn a session plan, outline, content doc, or conversation into a slide deck. Also trigger when the user says things like "turn this into slides", "I need slides for this", or "make a deck for this session". The output is always a .pptx file using the design system defined in this skill. Do not write ad-hoc python-pptx code — always use this skill and the bundled script as the foundation.

PPT Builder

Generates dark-themed .pptx files using python-pptx. The design system is fixed: near-black background, Claude orange accents, white/grey text hierarchy. Every presentation uses this system — do not deviate.

scripts/build_ppt.py is the canonical reference deck containing the full design system, all helpers, and a working example of every layout pattern. Always read it before generating slides. Never rewrite helpers from scratch.

Workflow

1. Read the reference script

Read scripts/build_ppt.py for color constants (BG_DARK, ACCENT, WHITE, LIGHT_GREY, MID_GREY, TAG_BG), slide dimensions (SLIDE_W, SLIDE_H), and helpers (bg, txbox, accent_bar, tag, bullets, divider). Use them directly.

2. Understand the content

Identify:

• What is being presented — session, talk, workshop, pitch, review
• How many slides — rough guide: duration in minutes / 2
• What sections exist — extract from the user's doc, outline, or conversation
• Output path — ask if not specified; default to same folder as the source doc

3. Pick slide patterns

Map each slide's content to one of the patterns documented in references/slide-patterns.md: title, agenda/table, concept (bullets + panel), card grid, comparison (avoid/instead), numbered row list, demo walkthrough, closing/teaser. Read that file before writing slide code.

4. Write the build script

Create build_<topic>.py. Copy the helper block verbatim from scripts/build_ppt.py (or import if same directory). Add slides one by one. Save and print path + slide count.

# [helpers block from scripts/build_ppt.py — colors, dimensions, BLANK, all functions]

prs = Presentation()
prs.slide_width  = SLIDE_W
prs.slide_height = SLIDE_H
BLANK = prs.slide_layouts[6]

# --- SLIDE 1: Title ---
s = prs.slides.add_slide(BLANK)
bg(s); accent_bar(s)
# ... slide content ...

out = "/path/to/output.pptx"
prs.save(out)
print(f"Saved: {out}")
print(f"Slides: {len(prs.slides)}")

5. Run the build

python3 build_<topic>.py

If python-pptx is missing: pip3 install python-pptx.

6. Run the layout checker (mandatory)

python3 scripts/check_layout.py <path-to-pptx>

Exit code 0 = ship. Exit code 1 = fix and re-run. Do not hand the deck to the user until the check passes. See references/layout-checker.md for what it catches, what's excluded, and common collision fixes.

Design rules (non-negotiable)

• Background: always BG_DARK (#0D0D0D)
• Accent: always ACCENT (#D47A21 — Claude orange)
• Text hierarchy: titles in WHITE, body in LIGHT_GREY, metadata in MID_GREY
• Cards and panels: TAG_BG fill (#1E1E1E) with ACCENT border
• Accent bar: always present at top of every slide (accent_bar(s))
• No speaker-direction labels: tags like "SCREENSHARE" or "SLIDES" are internal — do not include on audience-facing decks
• No emojis in slide content unless explicitly requested
• Bullet spacing: spacing_after=Pt(10) default, increase to Pt(14) for fewer items
• Max bullets per slide: 5. More than 5 = split into two slides
• Slide titles: state the takeaway, not the topic. "CLAUDE.md Is the Context File Claude Reads First" not "CLAUDE.md Overview"

Output conventions

• Save the .pptx to the same folder as the source document unless the user specifies otherwise
• Filename: <Topic>-<Context>.pptx (e.g., Session-1-Claude-Code-NextLeap.pptx)
• Print save path and slide count after saving
• Keep the generation script in the same folder as the output for future edits

Bundled resources

• scripts/build_ppt.py — canonical reference deck with every pattern
• scripts/check_layout.py — layout validator (run before delivery)
• references/slide-patterns.md — code snippet for each slide pattern
• references/layout-checker.md — checker details, exclusions, common collision fixes