Parallel builder
Production-grade Claude Code skills for shipping quality code. One command takes your branch from "done coding" to PR-ready via audit → review → docs → push.
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Build multiple files/pages in parallel using subagents. Handles task division, shared file coordination, and build verification. Conflict-free by design.
SKILL.md
2.0 KB, as published. Nobody here has run it
/parallel-builder
Orchestrate building many files at once without merge conflicts.
When to use
- Building 3+ independent components/pages
- Migrating many files to a new pattern
- Generating boilerplate across a feature
How it works
- Divide — split work into independent batches (no shared file edits within a batch)
- Register shared files — identify files that multiple batches might touch
- Spawn subagents — one per batch, working on independent files
- Coordinate — main agent handles shared files after all subagents complete
- Verify — build + typecheck to catch integration issues
Shared File Registry
Before spawning agents, identify files that appear in multiple batches:
Shared files (main agent handles these AFTER subagents finish):
- Router config (e.g., routes.tsx, app.module.ts)
- Barrel exports (e.g., index.ts)
- Shared types (e.g., types.ts)
Rule: subagents never edit shared files. Only the main agent does, after all parallel work completes.
Batch Size Guidelines
| Files to build | Strategy |
|---|---|
| 1-2 | Just do it sequentially — no need for parallel |
| 3-5 | 2-3 subagents |
| 6-10 | 3-4 subagents |
| 10+ | 4-5 subagents max (diminishing returns) |
Pre-flight Checklist
Before spawning:
- All target directories exist
- Shared files identified and excluded from subagent scope
- Each batch's files are truly independent
- Build passes before starting (clean baseline)
Post-flight Checklist
After all subagents complete:
- Update shared files (routes, exports, types)
- Run build + typecheck
- Verify no duplicate exports or circular imports
- Spot-check a sample of generated files