Agent skill for product management

The missing project vocabulary for agents.

Generic AI gives you answers. PM Butler gives you a household staff: eight specialists who challenge assumptions, flag scope creep, and write the documentation you keep putting off.

Free plugin: GitHub + Claude Code Raw packs: Gumroad

Install free Get raw packs

Works with Cursor, Claude Code, Copilot, and any harness that accepts skills.

PM Butler: The Ensemble - eight AI project management personas

pm-butler / sprint review

Watch Concern Blocker

The problem

One generic assistant cannot run a project.

Forty-seven tabs. Twelve half-finished ideas. Zero decision log. Discovery, scope, architecture, QA, and launch need different instincts. Without a shared vocabulary, agents guess and decisions vanish into chat history.

No phase ownership

The same model validates problems, writes acceptance criteria, and signs off on launch. Corners get cut where nobody is watching.

No paper trail

Two hundred messages later, nobody can answer why you built it that way. Post-mortems become archaeology.

No productive tension

Real teams argue about speed vs. quality. A single agreeable assistant lets scope creep and untested launches slide.

The ensemble

Eight personas. One household.

Each member owns an SDLC phase, speaks in a distinct voice, and flags concerns at three severity levels: Watch, Concern, Blocker.

Head Butler

Orchestration

The Oracle

Discovery

The Sculptor

Requirements

The Architect

Design

The Alchemist

Development

The Gatekeeper

The Shipper

Launch

The Librarian

Documentation

Sample output

What Oracle actually produces.

Structured output you can paste into your repo, not chat filler.

View sample discovery response

            Problem statement (draft)

            Checkout abandonment spikes on mobile between steps 2 and 3.

            Evidence needed

            - Current step-2 to step-3 drop-off rate

            - Median time on step 2 (baseline)

            - 5+ user verbatims, not one Slack message

            CONCERN Problem still uses "slow" without a metric. Logged as OQ-014.

            Recommendation Stay in discovery until baseline exists, or explicitly accept the risk in DECISIONS.md.

Ready to drop in

Built for how agents actually work.

Respects your project context.

Run /pm-butler init once. The skill reads your stack, team size, and constraints before any persona speaks.

> Walking project...
ok PROJECT.md loaded
ok 8 personas routed by SDLC phase
-> Matching your workflow. Not inventing one.

Living documentation, automatic.

Project Edition maintains eleven markdown files as you work: decisions, scope, risks, changelog, and more. You do not stop to document; the staff does it while helping you ship.

Concern severity that sticks.

Every persona watches for drift. Sculptor tracks scope creep as a percentage. Gatekeeper escalates when blockers pile up. Orange concerns are not optional.

Handoffs mirror real projects.

Oracle validates the problem. Sculptor locks requirements. Architect designs the system. Alchemist protects the sprint. Gatekeeper signs off. Shipper launches. Librarian records what actually happened.

Alliances and rivalries by design.

Shipper and Gatekeeper will disagree. That tension is a feature. The ensemble produces better outcomes than one voice saying yes to everything.

Choose your path

Free plugin or raw packs.

Install the skill from GitHub at no cost. Buy on Gumroad if you want the full markdown files, PDF guides, and extras without a harness.

The Ensemble

Free on GitHub

8 personas across the full SDLC

Phase coverage, team dynamics, coach and review modes, and structured output you can paste into Jira, Notion, or your repo.

Full ensemble system prompt
Quick reference routing guide
Concern severity framework
Interactive Notion builder (React)

Install free Raw pack

Project Edition

Free on GitHub

The AI that documents everything you will not

Seven specialists maintain eleven living markdown files. Every interaction produces the answer, the doc update, and any concerns.

DECISIONS.md, SCOPE.md, RISKS.md, and eight more
Scope creep index and decision reversal tracking
Ideal for solo builders and consultants

Install free Raw pack

Complete Household

Gumroad bundle

Ensemble + Project Edition together

Full SDLC coverage plus automatic documentation. Everything in both editions, persona cards, and quick-reference PDF.

Both system prompts, ready to paste
All persona cards and cheat sheets
Best value if you want files, not just the plugin

Buy on Gumroad Or install free

The language

Commands your agent already understands.

Each maps to one persona or workflow. Pick any to see what it does.

/pm-butler init

Create PROJECT.md with stack, team, constraints, and current SDLC phase.

Get started

Install once. Route forever.

Works today via GitHub and Claude Code. npm installer coming soon.

Claude Code (ready now)

Add the marketplace, install the plugin, then run init.

/plugin marketplace add tedrubin80/pmbutler

First run

Initialize project context inside your agent session.

/pm-butler init

Cursor / npm (coming soon)

Or clone the skill folder from GitHub into .cursor/skills/pm-butler/ today.

npx pm-butler skills install

After install, run /pm-butler route to see which persona owns your current phase. Source: github.com/tedrubin80/pmbutler. Raw markdown packs: Gumroad.

About

Order from the chaos.

I build agent skills, prompt packs, and systems for people who think fast and document slow. PM Butler is a household of eight AI personas that cover discovery through launch: they challenge scope creep, flag risks, and write the docs you keep skipping.

Flexible enough for real projects. Structured enough to ship. Generic AI gives answers. PM Butler gives you a staff.

Built by Ted Rubin. Free plugin at pmbutler.dev. Raw packs and tips at Gumroad.

Also on Gumroad

AI Literacy prompt guides

PDF prompt guides for teams and developers. Sold alongside PM Butler on Gumroad.

Clarity pack

Chaos-to-Clarity and Document Decoder guides for teams new to AI-assisted work.

Developer pack

Code Review Partner and Codebase Onboarding Assistant for engineering workflows.

Strategy pack

AI Project Team and project strategy guides for PMs running cross-functional initiatives.

Browse all guides on Gumroad