Core skill for Product Managers in AI-native builder pods using spec-driven development with Claude Code. Use this skill whenever you need to: write a Claude-Code-ready product specification, review a draft spec for ambiguity or missing edge cases, turn a problem signal into a structured spec, generate acceptance criteria that can be used directly as Claude Code test inputs, run the weekly coherence check against other pods' specs, or plan the spec for a sub-week sprint cycle. Trigger on any request involving writing or reviewing product specs, PRDs, acceptance criteria, sprint planning at sub-week velocity, or preparing a problem for the Claude Code pipeline. This skill transforms the PM's core craft from backlog management to specification engineering.
This skill is part of the product-delta-force plugin. To use it, install the plugin via one of these methods:
Claude Code: git clone git@github.com:carousell/ct-builder-os.git ~/.builder-os && ~/.builder-os/scripts/bootstrap.sh <your-role>
Claude Desktop: Download product-delta-force.zip → Settings → Customization → Upload
Full skill source is available to team members with repository access.