| name | deck-builder |
| description | Build brand-agnostic MBB-style PPTX/PDF/static web presentation decks from source briefs, notes, and optional templates. Use for `/deck` or when a user wants a polished presentation package without company-specific private branding baked into the kit. |
MBB Consulting Deck Builder
Use this skill for repeatable, top-tier MBB-style (McKinsey, BCG, Bain) presentation deck creation that is brand-neutral by default, mathematically and logically structured, and optimized for executive decision-making.
Operating Contract & Consulting Rigor
-
Pyramid Principle & SCQA Storyline:
- Start with the Governing Thought (the single core recommendation).
- Structure the executive narrative using SCQA: Situation (context), Complication (bottleneck/threat), Question (strategic choice), Answer (quantified solution).
- Write Action Titles: Every slide title must be a complete declarative sentence delivering the "So What?" (e.g., "Enterprise self-serve onboarding reduces customer acquisition cost by 35% within 6 months", never a label like "Onboarding Overview").
- Include a 1-sentence bold context lead-in bridging the title to the proof object.
-
Zero AI Fingerprint Guarantee:
- Strictly ban generic AI presentation tropes: NO floating card grids with decorative emojis/icons, NO random gradient backdrops, NO empty filler bullet points.
- Every slide must feature exactly ONE dominant hero proof object taking up 70%+ of the visual slide canvas.
-
Consulting Layout Archetype Library (70+ Patterns):
- 3-Column Structured Synthesis: Context / Root Cause -> Strategic Lever -> Quantified Business Impact.
- 2x2 Prioritization Matrix: Impact vs. Effort / Urgency vs. Importance with named quadrants.
- Harvey Balls Evaluation Table: Capability comparison across vendors or architectural options with filled/half/empty circle indicators.
- Waterfall / Bridge Chart: Visual bridge from Baseline Revenue -> Levers -> Target Revenue.
- Horizontal Process Chevrons: Milestone progression with stage gates, owners, and deliverables.
- MECE Issue Tree: Mutually Exclusive, Collectively Exhaustive diagnostic branch.
-
Human-Readable Output Workspace:
- Always output into a descriptive kebab-case folder:
0. Incoming/[date-]deck-topic-slug/ (e.g. 0. Incoming/2026-08-26-q3-growth-strategy-deck/).
Default Deliverables
Unless specified otherwise:
- Editable PPTX (validated OpenXML via
python-pptx / office_cli)
- Print-ready PDF (16:9 widescreen)
- Standalone Responsive HTML Contact Sheet / Web Slide Viewer
- Markdown Ghost Deck / Slide Spine (
storyboard.md) with kicker, action title, lead-in, hero proof, and citation
- Source Notes & Provenance (
source-notes.md)
End-to-End Workflow
-
Phase 1: Source Ingestion & Hypothesis Formation
- Read all provided briefs, strategy notes, metrics, and PRDs.
- Formulate the governing hypothesis and validate against the source evidence.
-
Phase 2: Storylining & Ghost Deck (Markdown First)
- Write the slide spine in
storyboard.md before generating slide layouts.
- Check each slide against the "So What?" test: Does the action title communicate a decisive insight without reading the body?
-
Phase 3: Visual Grammar & Proof Object Construction
- Widescreen 16:9 canvas with precise grid alignment.
- High-contrast executive color system: Canvas (Pure White
#FFFFFF), Primary Anchor (Deep Navy #0A192F or Slate #1E293B), Intentional Accent (Amber #D97706 or Emerald #059669), Structural Dividers (0.5pt Neutral Gray #E2E8F0).
- Typography: Clean sans-serif (Calibri / Arial / Inter), 20–24pt bold action title, 12–14pt lead-in, 10–12pt data callouts, 8–9pt bottom citation.
-
Phase 4: Deterministic Generation & Validation
- Generate the
.pptx file using python-pptx or office_cli.
- Render slide previews, contact sheet, and confirm XML integrity.
- Verify that all data points, citations, and source references are grounded.
Completion Response
Return clickable hyperlinks to the final PPTX, PDF, HTML viewer, and the Markdown storyboard.
