Create a New TikZ Diagram

Scaffold a diagram from templates/tikz-snippets/, check it against the prevention rules, compile standalone, run the reviewer with measurement citations, and loop until the diagram passes. Use this instead of writing TikZ from scratch; the snippets embed the invariants that tikz-prevention.md requires.

Inputs

• $0 (optional), snippet name (without .tex). One of the filenames in templates/tikz-snippets/. If omitted, list the gallery and ask the user to pick.
• $1 (optional), output path. Defaults to Figures/new_diagram.tex, ask the user if this target exists so we don't clobber.

Workflow

Step 1: Pick a snippet

ls -1 templates/tikz-snippets/*.tex

Current gallery (see templates/tikz-snippets/README.md for descriptions):

• dag-basic, 3-node causal DAG (X → Y with confounder U)
• dag-mediation, X → M → Y with direct path
• did-two-period, two-period difference-in-differences
• event-study, event-time coefficients with 95% CIs
• timeline, horizontal timeline with staggered events
• regression-scatter, scatter + OLS fit + confidence band
• flowchart-3step, vertical flow with decision diamond
• supply-demand, supply/demand with shifted demand

If $0 is not one of these, or is omitted, ask the user which to use.

Step 2: Copy the snippet to the output path

SRC="templates/tikz-snippets/$0.tex"
DST="${1:-Figures/new_diagram.tex}"

# Confirm before overwriting
if [ -f "$DST" ]; then
  echo "Output path already exists: $DST"
  # Ask the user whether to overwrite. Do NOT clobber silently.
fi

mkdir -p "$(dirname "$DST")"
cp "$SRC" "$DST"

Step 3: Edit the content to fit the user's intent

Ask the user what the diagram should show. Edit $DST with the Edit tool: