# Rpi > Consolidated research-plan-review-implement workflow. Use when the user wants to research or explore solutions, create an implementation plan, review a plan or artifact, implement from a plan, hand off work to another session, pick up a handoff, write output to .rpi/, or grill a plan/design through relentless interviewing. Keywords: research, plan, review, implement, handoff, pickup, write, grill. - Skill: `chris-hendrix/rpi` (Agent Skill, multi-file: 10 files) - Install (CLI): `npx skillmds@latest add chris-hendrix/rpi` - Raw SKILL.md: https://api.skillmd.com/api/skills/chris-hendrix/rpi/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Research & Search - Author: chris-hendrix (https://skillmd.com/u/chris-hendrix) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/chris-hendrix/rpi --- # rpi — Research, Plan, Review, Implement Parse the first word of the input as the keyword (`implement all [plan]` / `implement phase N [plan]` is the shape there). `plan`, `review`, and `implement` accept a path to a `.rpi/` document as context; `implement` with no path uses the most recent `.rpi/plans/*.md` (confirm with the user). Unknown or missing keyword → show the table and ask. | Keyword | Reference | |---------|-----------| | `research ` | [research](references/research.md) — explore solutions with the user | | `plan ` | [plan](references/plan.md) — TDD-structured implementation plan | | `review ` | [review](references/review.md) — findings list + verdict | | `grill ` | [grill](references/grill.md) — relentless interview until fully aligned | | `implement [all \| phase N] [plan path]` | [implement](references/implement.md) — orchestrate subagents through a plan's checklist | | `handoff [focus]` | [handoff](references/handoff.md) — summarize session for another agent | | `pickup [path]` | [pickup](references/pickup.md) — resume from a handoff | | `write` | [write](references/write.md) — save output to `.rpi/` |