SuperDerive/SKILL.md

name, description

name	description
superderive	Create or refine stepwise algebraic derivation figures — rewrite steps, justification rails, cancel and substitute highlights. Use when a rewrite must be seen (cancel-visual, subst-visual, or more than four steps), or the user asks for $superderive. Not for architecture (superfig), tensor faces (supertensor), or a full paper-note job (use superpaper; short rewrites stay as align).

superderive

Turn one rewrite sequence into one slide-ready figure with three zones:

1. Top — claim. The identity being justified.
2. Middle — steps. \sdstep / \sdcancel / \sdsubst / \sdreason.
3. Bottom — meaning. Idea, rewrite, caveat.

Draw with the package. Do not hand-roll TikZ unless the linter allows it.

When to use

• A cancel or substitution that is the claim.
• More than four rewrite steps that must stay aligned as a picture.
• An illegal vs legal pair (\sdcol, one per figure).

If expand: true and steps ≤ 4 and there is no cancel/subst visual, superpaper still uses align. This package is for when the rewrite must be seen.

Workflow

1. ./scripts/preflight.sh
2. One rewrite path. Drop equivalent expansions.
3. Roles: keep / rewrite / cancel / intro (already declared).
4. Smallest grammar: \sdstep + \sdreason; add \sdcancel / \sdsubst only when they carry information.
5. ./scripts/build.sh fig.tex then audit references/checklist.md.

Output

Editable TikZ. Build emits PDF, SVG, PNG, transparent PNG, thumbnail.

Chinese: \usepackage[cjk]{superderive}. English: [en].