RPI Implement Plan

Use this skill to execute an approved implementation plan from rpi/plans/ with disciplined progress tracking and validation.

Initial Behavior

• If the user provides a plan path, begin immediately.
• If no plan path is provided, ask for one.

Use this prompt when no path is provided:

I'm ready to implement the plan. Please share the plan file path (typically under `rpi/plans/`) and I’ll execute it phase-by-phase, run verification checks, and update progress checkboxes in the plan as work completes.

Getting Started

When a plan path is provided:

1. Read the plan completely.
2. Check for existing - [x] items to detect prior progress.
3. Read all files referenced by the plan, fully.
4. Create a task list that mirrors phases and key checklist items.
5. Start implementation when requirements are clear.

Implementation Philosophy

• Follow the plan's intent while adapting to current code reality.
• Complete each phase fully before moving to the next.
• Verify changes in context, not in isolation.
• Update plan checkboxes as items are completed.

If the codebase conflicts with the plan, pause and surface the mismatch clearly:

Issue in Phase [N]:
Expected: [what the plan says]
Found: [actual situation]
Why this matters: [explanation]

How should I proceed?

Working Process

1) Implement phase-by-phase

• Finish one phase before starting the next.
• Make all required code/file changes for that phase.
• Run the phase's automated checks before proceeding.
• Mark completed checklist items in the plan file like so: - [x] .

2) Verify after each phase

• Run success criteria checks from the plan (tests, lint, typecheck, build, or equivalent).
• If necessary to confirm changes were made correctly, you can write and run temporary scripts to verify the behavior; clean them up afterwards.
• Fix issues before advancing.
• Record progress in your task list and in the plan checkboxes.

3) Handle blockers pragmatically

• Re-read relevant code and requirements before escalating.
• Account for plan drift when code has changed since planning.
• Ask for guidance only after presenting a concrete mismatch and options.

Resuming Existing Work

If the plan already has checked items:

• Treat checked work as completed by default.
• Resume from the first meaningful unchecked item.
• Re-verify prior work only if current behavior suggests a regression or inconsistency.

Output Expectations

When reporting progress to the user:

• Summarize what was implemented in the current phase.
• List verification commands run and outcomes.
• Call out any deviations from plan and why.
• Link the updated plan path so progress is auditable.

Quality Bar

• Prioritize working software over mechanical checkbox completion.
• Keep momentum while maintaining correctness.
• Do not skip verification gates defined by the plan.
• Keep plan checkboxes truthful and up to date.