Compile Deck

Create beautiful Beamer presentations. This skill enforces the Rhetoric of Decks philosophy through concrete, measurable rules — not aspirational guidance.

Step 1: Triage

Before touching anything, answer three questions:

Q1: New deck or editing existing?

• If editing: Read the .tex file first. Understand its palette, structure, and style before changing anything.
• If new: Proceed to Q2.

Q2: Who is the audience?

1. Academic seminar — sparse, one idea per slide, titles carry the argument
2. Teaching lecture — clarity over compression, repetition OK, progressive revelation
3. Working deck (coauthors) — more detail OK, document choices, preserve uncertainty
4. External non-academic — storytelling, visual impact, minimal jargon

See domain_patterns.md in this skill directory for detailed guidance per audience type.

Q3: What's the tone?

1. Professional/Academic — use the Warm Professional palette (default) or Academic Muted
2. Colorful/Expressive — create something new each time. See palette_reference.md for inspiration.

Step 2: The Non-Negotiable Rules

These are not guidelines. They are constraints.

ONE idea per slide

If a slide has two ideas, split it. No exceptions.

Titles are assertions, not labels

• Bad: "Results"
• Good: "Treatment increased distance by 61 miles on average"
• Bad: "Literature Review"
• Good: "Prior work ignores the supply-side margin"

If someone reads only the slide titles in sequence, they should understand the entire argument.

Typography minimums

• Body text: 24pt minimum
• Absolute floor (footnotes, source notes): 18pt
• Sans-serif fonts only
• Never justify text — always ragged right

No bullet lists (usually)

Bullets are a confession that you haven't found the structure. Look for:

• A sequence (use a flow diagram)
• A contrast (use two columns)
• A hierarchy (use size/color differentiation)
• A causal chain (use arrows)

Exception: genuinely parallel items (e.g., a list of axioms in a teaching deck).

Charts: one message, direct labels

• Every chart communicates ONE finding
• Title states the finding ("Enrollment doubled after 2015"), not the chart type ("Enrollment Over Time")
• Label data directly on the chart — no legends requiring eye movement
• Remove all chartjunk: gridlines, borders, unnecessary axis marks

White space is confidence, not waste

Empty space on a slide signals that you chose carefully. A full slide signals anxiety.

Zero compile warnings

Not "try to fix." Zero. See the Compile Loop below.

Step 3: The Preamble

For new decks, use this template. It is extracted from real decks that work.

Default: Warm Professional Palette (10 colors)

latex
\documentclass[aspectratio=169,11pt]{beamer}

% Packages
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage{microtype}
\usepackage{amsmath,amssymb}
\usepackage{booktabs}
\usepackage{graphicx}
\usepackage{tikz}
\usepackage{pgfplots}
\usepackage{xcolor}
\usepackage{ragged2e}
\usepackage{colortbl}
\usepackage{array}
\usepackage{hyperref}
\usepackage{adjustbox}

\usetikzlibrary{shapes.geometric, arrows.meta, positioning, calc,
                backgrounds, decorations.pathreplacing, shadows, fadings}
\pgfplotsset{compat=1.18}

% --- Color Palette: Warm Professional ---
\definecolor{DeepNavy}{HTML}{2E4057}
\definecolor{Teal}{HTML}{048A81}
\definecolor{WarmOrange}{HTML}{E85D04}
\definecolor{SoftPurple}{HTML}{9D4EDD}
\definecolor{WarmGray}{HTML}{6C757D}
\definecolor{LightGray}{HTML}{E9ECEF}
\definecolor{Cream}{HTML}{FBF8F1}
\definecolor{DeepRed}{HTML}{D62828}
\definecolor{Gold}{HTML}{D4A03A}
\definecolor{SoftWhite}{HTML}{FAFAFA}

% Beamer colors
\setbeamercolor{normal text}{fg=DeepNavy, bg=SoftWhite}
\setbeamercolor{structure}{fg=DeepNavy}
\setbeamercolor{alerted text}{fg=DeepRed}
\setbeamercolor{example text}{fg=Teal}
\setbeamercolor{frametitle}{fg=DeepNavy, bg=SoftWhite}
\setbeamercolor{title}{fg=DeepNavy}
\setbeamercolor{subtitle}{fg=WarmGray}
\setbeamercolor{block title}{bg=DeepNavy, fg=SoftWhite}
\setbeamercolor{block body}{bg=LightGray, fg=DeepNavy}
\setbeamercolor{itemize item}{fg=WarmOrange}
\setbeamercolor{itemize subitem}{fg=Gold}

% Fonts
\usefonttheme{professionalfonts}
\setbeamerfont{title}{size=\huge, series=\bfseries}
\setbeamerfont{frametitle}{size=\Large, series=\bfseries}

% Strip chrome
\setbeamertemplate{navigation symbols}{}
\setbeamertemplate{headline}{}

% Minimal footline
\setbeamertemplate{footline}{%
    \hfill
    \begin{beamercolorbox}[wd=3cm,ht=2.5ex,dp=1ex,right,rightskip=0.6cm]{page number}
        \usebeamercolor[fg]{WarmGray}\scriptsize\insertframenumber
    \end{beamercolorbox}
    \vspace{0.3cm}
}

% Bullets
\setbeamertemplate{itemize item}{\footnotesize\raisebox{0.3ex}{\tikz\fill[WarmOrange] (0,0) circle (0.45ex);}}
\setbeamertemplate{itemize subitem}{\footnotesize\raisebox{0.3ex}{\tikz\fill[Gold] (0,0) circle (0.35ex);}}

% Custom commands
\newcommand{\transitionslide}[2]{%
    {\setbeamercolor{normal text}{fg=SoftWhite,bg=DeepNavy}
    \begin{frame}[plain]\vfill\begin{center}
        {\huge\bfseries\textcolor{Gold}{#1}}\\[0.6cm]
        {\large\textcolor{LightGray}{#2}}
    \end{center}\vfill\end{frame}}
}

\graphicspath{{figures/}}

For alternative palettes, see palette_reference.md in this skill directory.

Step 4: Slide Architecture Patterns

Opening slide (first content slide after title)

NOT "Motivation" with bullet points. Instead:

• A surprising fact or statistic (big number, centered)
• A puzzle or unanswered question
• A provocative claim that the deck will support

Transition slides

Use \transitionslide{Section Title}{Subtitle} for dark-background section dividers.

Closing slide

NOT "Questions?" or "Thank you." Instead:

• The ONE sentence the audience should remember tomorrow
• Full-bleed dark background with the takeaway centered

Devil's Advocate slide (academic decks)

Present the strongest objection to your argument, then respond to it. This builds credibility. Format: "A skeptic would say..." followed by your response.

TikZ diagram slides

Read tikz_rules.md in this skill directory BEFORE creating any TikZ figure. The rules are measurement-based — they prevent text from overlapping arrows, boxes, and other objects.

Critical rule preview: Before placing a label between two nodes, CALCULATE the edge-to-edge gap and compare it to the estimated text width. If the text is wider than the gap minus 0.6cm padding, the label WILL collide. Move it above/below or shorten the text.

Step 5: The Compile Loop

After EVERY edit to a .tex file:

5a: Compile

bash
pdflatex -interaction=nonstopmode [file].tex

5b: Check for fatal errors

bash
grep "^!" [file].log

If any: fix, recompile, repeat.

5c: Check for ALL warnings

bash
grep -cE "Overfull|Underfull" [file].log

This must return 0. For EACH warning:

| Warning | Fix | |---------|-----| | Overfull \hbox | Rephrase shorter, use \adjustbox, add @{} to table columns | | Underfull \hbox | Rephrase or adjust paragraph breaks | | Overfull \vbox | Split the slide or reduce \vspace, tighten content | | Underfull \vbox | Add \vfill or adjust spacing |

Even 0.5pt overfull must be fixed. Do NOT proceed until the count is 0.

5d: Check fonts

bash
grep -i "font" [file].log | grep -i "warning"

5e: TikZ verification (Bézier-first workflow)

TikZ errors don't trigger compile warnings. You must catch them yourself. Follow this order — curves first, everything else second:

Pass 1 — Find and fix all Bézier curves:

bash
grep -n "bend" [file].tex

For EACH curved arrow found:

1. Calculate max depth: (chord / 2) × tan(bend_angle / 2)
2. Add 0.5cm safety margin
3. Check: is any label within the danger zone? Move it if so.
4. Check: does the curve cross any other arrow? Re-route if so.

Pass 2 — Everything else:

• Gap calculation: for every label between two nodes, is estimated text width < usable gap?
• Arrow labels: does every one have above, below, left, or right?
• No nodes clipped by slide edges
• All arrows pointing to intended targets

Pass 3 — Open the PDF and visually confirm.

Full rules and formulas are in tikz_rules.md. This verification runs on ALL TikZ figures in the deck, not just the one you just edited.

5f: Open the PDF

bash
open [file].pdf

Step 6: The Narrative Arc

Every deck tells a story. The structure depends on context, but the principle is universal:

Act I — Setup: Establish the problem or question. Make the audience feel it. Act II — Development: Present evidence, analysis, investigation. Build the logical case. Act III — Resolution: Deliver the insight. State implications. Give the audience something to do or remember.

Within this arc, apply the Pyramid Principle: lead with the conclusion, then support it. Academic audiences expect this. Do not build suspense — state the finding, then prove it.

For domain-specific structures, see domain_patterns.md.

Step 7: Figure Generation

When a deck needs data visualizations:

1. Write a Python script (generate_figures.py) using matplotlib
2. Use the same color palette as the LaTeX deck
3. Save figures as PDF (vector, not raster) to a figures/ subdirectory
4. Every figure: one message, direct labels, title states the finding
5. Match the deck's background color in fig.set_facecolor()
6. Save the script alongside the figures — never generate a figure without preserving the code that created it
7. Boundary Rule applies to figures too: When placing ax.text() near patches (FancyBboxPatch, Circle, Rectangle), compute the patch boundary and verify text has ≥0.4cm clearance. See tikz_rules.md Pass 4.
8. Anchor-Based Centering Rule: When a container holds multiple text elements (title + math), do NOT use va='center' for both at symmetric offsets — multi-line text extends further from its anchor than single-line, creating visual asymmetry. Instead, anchor outward from center: upper element uses va='bottom' at center + gap, lower uses va='top' at center - gap. See tikz_rules.md Pass 4.
9. Bézier-first for matplotlib arrows: When labeling curved arrows (arc3), compute the actual Bézier curve position using the arc3 control point formula (cx = mid_x + rad*dy, cy = mid_y - rad*dx), then offset labels perpendicular to the computed curve position. Never guess where curves pass. Use a white-background bbox on labels for readability. See tikz_rules.md Pass 4 for the full formula and workflow.

Quick Reference

| Principle | Rule | |-----------|------| | Ideas per slide | ONE | | Title style | Assertion, not label | | Minimum font | 24pt (18pt floor) | | Bullets | Avoid — find the structure | | White space | Confidence, not waste | | Charts | One message, direct labels | | Compile target | Zero warnings | | Opening slide | Puzzle, surprise, or provocation | | Closing slide | One memorable takeaway | | TikZ labels | Calculate the gap (see tikz_rules.md) | | Color palette | 10+ colors, warm by default | | Narrative | Setup, Development, Resolution |

Supporting Files

All in this skill directory (~/.claude/skills/compiledeck/):

• tikz_rules.md — Measurement-based TikZ collision prevention rules. READ THIS before creating any TikZ diagram.
• palette_reference.md — Four real palettes extracted from existing decks, with a selection guide.
• domain_patterns.md — Detailed structural patterns for academic seminars, teaching lectures, and working decks.

Full Philosophy Reference

For the complete essay behind these principles: ~/MixtapeTools/presentations/rhetoric_of_decks.md ~/MixtapeTools/presentations/rhetoric_of_decks_full_essay.md

This skill distills those essays into operational rules. You don't need to re-read them — just follow the rules above.