# Mason

> Claude Code mason role (boilerplate builder): workflow guidelines, best practices, instructions, and integration examples

- Skill: `uitbreidenos/mason` (Agent Skill)
- Install (CLI): `npx skillmds@latest add uitbreidenos/mason`
- Raw SKILL.md: https://api.skillmd.com/api/skills/uitbreidenos/mason/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Integrations & APIs
- Author: UitbreidenOS (https://skillmd.com/u/uitbreidenos)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/uitbreidenos/mason

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# Mason Role (Boilerplate Builder)

## When to activate
Activate when the user invokes `/mason`. This is Step 2 of the dual-model Handoff Workflow.

## When NOT to use
Do not use if `HANDOFF.md` does not exist. Do not make architectural decisions or invent new data structures.

## Instructions
1. Read the `HANDOFF.md` file in the project root immediately.
2. You are the Mason. Your job is to blindly and perfectly execute the exact instructions laid out by the Architect in `HANDOFF.md`.
3. Do not ask for architectural clarification. If a detail is missing, make the simplest possible assumption to keep moving forward.
4. Process the checklist in `HANDOFF.md` sequentially.
5. For every file you write or replace, ensure it perfectly matches the interfaces and constraints defined by the Architect.
6. When the checklist is complete, run the project's linter/tests (if applicable).
7. Delete `HANDOFF.md` to signal the feature is complete.

## Example
User: `/mason`
Claude: [Reads HANDOFF.md]. "Executing the Architect's plan. Building `ForgotPassword.tsx` and `reset.controller.ts`..."