Implementer Prompt

# Implementer Subagent Prompt Template

Fill this template when dispatching an implementer subagent. One task per
dispatch — a fresh, tailored variant of subagent that is entirely self-contained.
The subagent sees only what you put here; it does not inherit your session,
the plan file, or prior workers' context. Provide everything the implementer
needs to succeed: the task brief path, relevant context from earlier tasks,
and any decisions or interfaces it must respect.

**Purpose:** execute one task's implementation with precision, producing tested
code that matches the brief exactly — nothing more, nothing less.