Variant Copy Scaler

Scale one master product description across many variants so each page is distinct enough to rank and to answer "is THIS the one I want," without rewriting the brand story per SKU. The costly mistake this prevents is twofold: thin near-duplicate pages that compete with each other and dilute authority, and the wasted effort of hand-writing thirty full descriptions when only 20% of each page should differ.

Operating procedure

The order is strict: the indexing decision comes before any copy, because consolidation makes per-variant copy unnecessary and writing it first wastes the work.

Step 1: Gather inputs

• The master description (the parent PDP copy). If it does not exist, stop and route to product-description-writer first.
• The full variant matrix: every color, size, and bundle, with SKU and any attribute that genuinely differs (dimensions, weight, price, materials).
• Platform behavior: does each variant mint a separate indexable URL, or does one URL serve all variants via a selector?
• Brand voice constraints, if documented.

Stop if the master or the matrix is missing.

Step 2: Decide the indexing strategy first

If the platform mints a separate indexable URL per variant, choose deliberately and state the decision explicitly in the output:

• Rank variants individually - only when variants attract distinct search demand (people search "olive green linen curtains" separately from "white linen curtains") AND you will write materially unique copy per page.
• Consolidate to the parent - set canonical tags on variant URLs pointing to the parent product. The default for most matrices.

Step 3: Apply the consolidation rule

If you chose consolidation, or the matrix is large and undifferentiated (e.g. 30 near-identical shades), recommend a single parent page with a swatch/size selector and stop before generating thin copy. Generating per-variant pages for an undifferentiated matrix is the failure mode, not the deliverable.

Step 4: Extract the shared core once

Pull out everything true of every variant: brand story, materials, core benefit, care instructions, warranty, shipping. This block is reused verbatim on every variant page and is never rewritten per SKU.

Step 5: Build the template

Fix the section order, bullet count, and tone so output scales without drift. Every variant page renders as: shared core + variant layer, in identical structure. Target roughly 80% shared, 20% variant-specific.

Step 6: Write the thin variant layer per option

Fill the template slots with genuinely variant-specific text. What changes per variant: the hue or dimension description, who it fits, the use case, the pairing cue, the bundle math. What never changes: brand story, materials, core benefit, care, warranty, shipping (unless they genuinely differ).

• Color: name the actual hue honestly ("warm oatmeal, not bright white") plus one styling or pairing cue.
• Size: state who it fits and the use case ("the 12oz suits a single espresso; the 20oz is for all-day desk sipping").
• Bundle: show per-unit value math and the occasion ("the 3-pack works out to $14 per unit vs $19 alone - stock the whole entryway").

Step 7: Render and verify

Render each page and read variant layers side by side. If any two read as near-duplicates - a single swapped word - rewrite or fold those variants into consolidation.

Worked artifact: good/bad variant layer pair

Master product: linen throw blanket, 6 colorways, separate URLs, decision = rank individually.

Bad (swapped-word copy - this is the duplicate-content trap):

Our beautiful linen throw in Sage adds comfort to any room. Made of 100% linen. Machine washable. Our beautiful linen throw in Rust adds comfort to any room. Made of 100% linen. Machine washable.

Good (shared core + genuine variant layer):

[SHARED CORE - identical on both pages] Stonewashed 100% European flax linen, pre-softened so it drapes from day one. Machine washable cold; gets softer with every wash. Free 30-day returns.

[SAGE layer] A muted gray-green that reads calmer than it photographs - closer to dried eucalyptus than mint. Pairs with warm woods and cream; the shade most buyers choose for bedrooms.

[RUST layer] A deep burnt terracotta with brown undertones, not orange. The highest-contrast colorway - built for neutral sofas that need one bold layer.

Template skeleton:

[FILL: variant name] - [FILL: 1-sentence honest hue/size/bundle description]
[FILL: 1 pairing, fit, or per-unit-math cue]
[SHARED CORE - paste verbatim]
[FILL: 3 bullets, same order every variant: material/benefit, care, guarantee]

Deliverable

Produce: (1) the stated canonical/indexing decision, (2) the shared core block, (3) the fixed template, and (4) one variant layer per option in the matrix - or, if consolidation wins, a one-paragraph recommendation for a parent page with selector and the canonical setup.

Do NOT

• Do not swap one color or size word and call it new copy.
• Do not publish multiple indexable variant URLs with near-identical text that compete and dilute authority.
• Do not claim a benefit for one variant that is not true of it (a black fabric is not "slimming" by virtue of color).
• Do not rewrite the brand story, materials, or core benefit per variant - those live in the shared core.
• Do not generate thin pages for an undifferentiated matrix; consolidate to a parent with a selector instead.
• Do not leave the canonical decision implicit - state it, because copy and indexing must agree.

Quality bar

• Every variant page has materially distinct text in its variant layer - a reader could identify which variant it describes with the name removed.
• Section order, bullet count, and voice are identical across all variants.
• The canonical/indexing decision is stated and consistent with the copy produced.
• Care, warranty, and shipping are identical across variants unless they genuinely differ.
• Roughly 80/20 shared-to-unique ratio holds; a page that is 99% shared should not exist as an indexable URL.

Neighbors

Master description from specs: product-description-writer. Amazon-specific listings: amazon-listing-optimizer. Category pages above the PDP: category-page-copywriter.