Extract TikZ diagrams from Beamer `.tex` source, compile each to a standalone PDF, and convert to SVG with 0-based indexing. Use when user says "extract the tikz", "regenerate the diagrams", "rebuild the SVGs", "sync tikz to quarto", or after editing TikZ blocks in a Beamer deck that also has a Quarto mirror.
Extract TikZ diagrams from the Beamer source, compile to multi-page PDF, and convert each page to SVG for use in Quarto slides.
Creating a brand-new diagram instead of extracting? Use
/new-diagram— it scaffolds fromtemplates/tikz-snippets/with the prevention rules pre-applied.
Before compiling, verify that extract_tikz.tex matches the current Beamer source.
ls Slides/$ARGUMENTS*.tex\begin{tikzpicture} blocks from BeamerFigures/$ARGUMENTS/extract_tikz.texBefore compiling, verify every \begin{tikzpicture} block in Figures/$ARGUMENTS/extract_tikz.tex satisfies the prevention rules in .claude/rules/tikz-prevention.md. The pre-check is a small Python script shared with /new-diagram so both skills enforce identical behavior:
python3 scripts/check-tikz-prevention.py "Figures/$ARGUMENTS/extract_tikz.tex"
What it checks:
scale=X without node scaling. Bare scale= shrinks coordinates but not text. Allowed forms: scale=X, every node/.style={scale=X} or scale=X, transform shape. The checker parses the full \begin{tikzpicture}[...] options block even when it spans multiple lines.node inside a \draw) must carry above, below, left, right, or a compound (e.g. above left). midway alone is a path position, not a direction. The checker scans the full \draw ...; statement so \draw on one line and node[...]{...} on the next line are still linked.Note what the pre-check does NOT enforce: P1 (boxed-node explicit dimensions) and P2 (coordinate-map comment) are structural and get flagged by tikz-reviewer in Step 8, not here.
Exit codes: 0 = all files pass, 1 = one or more P3/P4 violations (stderr lists file, line, snippet, rule), 2 = usage error.
If exit is non-zero: halt, report the offending lines, and ask the user to fix the Beamer source (single source of truth). Do NOT compile.
cd Figures/$ARGUMENTS
TEXINPUTS=../../Preambles:$TEXINPUTS xelatex -interaction=nonstopmode extract_tikz.tex
pdfinfo extract_tikz.pdf | grep "Pages:"
CRITICAL: PDF pages are 1-indexed, but output SVG files are 0-indexed!
PAGES=$(pdfinfo extract_tikz.pdf | grep "Pages:" | awk '{print $2}')
for i in $(seq 1 $PAGES); do
idx=$(printf "%02d" $((i-1)))
pdf2svg extract_tikz.pdf tikz_exact_$idx.svg $i
done
cd ../..
./scripts/sync_to_docs.sh $ARGUMENTS
Spawn the tikz-reviewer agent (via Task with subagent_type=tikz-reviewer) on the TikZ source blocks to catch label overlaps, geometric errors, and visual inconsistencies. The reviewer cites specific passes and formulas from .claude/rules/tikz-measurement.md. If it returns NEEDS REVISION or REJECTED, loop:
.tex source (single source of truth).extract_tikz.tex.Stop when tikz-reviewer returns APPROVED (max 5 rounds).
TikZ diagrams MUST be edited in the Beamer .tex file first, then copied verbatim to extract_tikz.tex. See .claude/rules/single-source-of-truth.md.