parallel-build

parallel-build is a skill for Claude Code from ZachArticulateV/designer-pro-and-seo. It costs 117 tokens per session (830 once invoked), scanned A, original, MIT.

A builder that creates several website or page versions at the same time, with each version using a different design reference but the same project brief and design settings.

In plain words
What is it for?
Use it to build design variations in separate Git worktrees or folders, capture side-by-side screenshots, and merge selected sections into a final site.
Why use it?
Comparing multiple versions makes it easier to choose the strongest sections before combining them into one result.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: mentions subagents.

Part of the designer-pro-and-seo plugin — 41 skills, 14 agents, 1 MCP server shipped together

Good fit Use it to build design variations in separate Git worktrees or folders, capture side-by-side screenshots, and merge selected sections into a final site.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/zacharticulatev/designer-pro-and-seo/parallel-build
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add ZachArticulateV/designer-pro-and-seo --skill parallel-build
Clone the repo
git clone --depth 1 https://github.com/ZachArticulateV/designer-pro-and-seo

Made for: Claude Code.

Or install designer-pro-and-seo, the plugin that ships this one along with the rest of its 41 skills, 14 agents, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for parallel-build

README.md
[![agentmods](https://agentmods.dev/badge/skills/zacharticulatev/designer-pro-and-seo/parallel-build/github.svg)](https://agentmods.dev/skills/zacharticulatev/designer-pro-and-seo/parallel-build)
Your own site
<a href="https://agentmods.dev/skills/zacharticulatev/designer-pro-and-seo/parallel-build"><img src="https://agentmods.dev/badge/skills/zacharticulatev/designer-pro-and-seo/parallel-build/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for parallel-build

Your own site · 80×15
<a href="https://agentmods.dev/skills/zacharticulatev/designer-pro-and-seo/parallel-build"><img src="https://agentmods.dev/badge/skills/zacharticulatev/designer-pro-and-seo/parallel-build.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 117 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 830 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00117 $0.00830
Opus 5 $0.00059 $0.00415
Sonnet 5 $0.00023 $0.00166
Haiku 4.5 $0.00012 $0.00083

Measured 11d ago against content hash 46f06a45b748, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

parallel-build scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/parallel-build/SKILL.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

parallel-build

Family: build-and-qa Status: Stable

Purpose

The multi-variant build primitive: instead of one prompt → one site, spawn N sub-agents (default 3), each in its own worktree/folder, each given a different inspiration source but the same brief and the same design tokens. The user gets a side-by-side comparison and cherry-picks the best sections into a merged final.

Triggers

  • "parallel build" / "build three versions" / "spin up variants"
  • "make 3 sites at once" / "side-by-side build"
  • "different design flavors to compare"

Inputs

  • Target (business/page/client) + the brief
  • N variants (default 3) and N inspiration sources (one per variant; html-extract can supply them)
  • Output mode: git worktrees | sibling folders

Steps

  1. Capture the brief and the N inspiration sources.
  2. Generate shared tokens once with design-system-gen so all variants share a coherent palette/type/effects — consistency across variants, distinctiveness via inspiration + layout.
  3. Create N output locations — git worktrees (one per variant) or, if git isn't available, sibling folders variant-1/ … variant-N/.
  4. Dispatch N build sub-agents in parallel behind the shared-token barrier — each runs the design-build skill with the same brief + the one shared token set from step 2, differing only by inspiration source. (design-build is an orchestrator, so each variant runs it as a skill inside its own sub-agent — not as a dispatched-leaf agent; the barrier guarantees every variant shares one palette/type/effects system.) One-shot each (iterate only if needed).
  5. Collect outputs and render a side-by-side comparison. When Playwright is connected, fan out one design-visual-qa agent per variant for screenshot capture and cross-variant diffs; otherwise render a structured comparison summary.
  6. Cherry-pick + merge. The user picks sections from each; assemble the final and run qa-gate before delivery.

Read the full file on GitHub · 75 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 75 lines · 117 tokens per session scan A 46f06a45b748

Subscribe to this mod's changes

parallel-build is a skill published in the GitHub repository ZachArticulateV/designer-pro-and-seo (8 stars, last pushed 2mo ago), licensed MIT. It adds 117 tokens to every session and 830 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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