Open-Source AI Skills Marketplace for PMs: 68 Skills, 9 Plugins Cover the Full Lifecycle

Three‑Layer Architecture

The system is organized into three layers:

Skill : the smallest unit that teaches Claude a specific method or workflow and loads automatically when the context matches.

Command : a slash command (e.g., /discover) that strings together multiple Skills into an end‑to‑end pipeline.

Plugin : a packaged collection of Skills and Commands grouped by product‑manager work domain.

Commands can chain automatically; after running /discover the system suggests /write-prd, then /red-team-prd, and finally /ship-check, mirroring a typical week of PM work.

Core Plugins Covering the Full PM Lifecycle

pm-product-discovery : 13 Skills and 5 Commands such as brainstorm-ideas, identify-assumptions, opportunity-solution-tree (Teresa Torres’s OST) invoked via /discover.

pm-product-strategy : 12 Skills covering strategy canvases, SWOT, PESTLE, Porter’s Five Forces, Ansoff matrix, Lean Canvas, and Business Model Canvas.

pm-execution : 16 Skills and 11 Commands for PRD templates, OKR, outcome roadmaps, sprint plans, pre‑mortems, retros, plus the new /red-team-prd and strategy-red-team commands.

pm-go-to-market : tools for beachhead market definition, ICP profiling, growth loops, and competitive battlecards.

pm-data-analytics : SQL generation, cohort analysis, and A/B‑test result interpretation.

pm-ai-shipping : the AI Shipping Kit (see below).

Feature 1: /red-team-prd – PRD Red‑Team Review

This command attacks live assumptions in a PRD and suggests the cheapest validation method.

Example interaction :

Input :

/red-team-prd Prioritize AI onboarding, activation is our bottleneck

Claude returns a structured analysis:

Claim : Activation is the growth bottleneck.

Fails if : Users actually churn during retention, not activation.

Evidence needed : Funnel data for the last three cohorts from activation to retention.

Cheapest test : Pull the funnel data – a few hours, no engineering effort.

Claim : AI onboarding can improve activation.

Fails if : AI guidance creates configuration anxiety for new users.

Cheapest test : Conduct guided prototype interviews with five users.

The command also flags assumptions that are already well‑validated, preventing unnecessary “red‑team” noise.

Feature 2: AI Shipping Kit – Auditing AI‑Generated Code

The kit turns an AI‑written codebase into a human‑signable release package through four steps: documentation, intent‑code audit, test‑coverage mapping, and packaging. The core command /ship-check performs a full audit and produces a release bundle.

It documents the system, compares documented intent with actual implementation, maps test coverage, and generates a sign‑off package.

It highlights mismatches such as undocumented permissions, overly permissive endpoints, or missing test verification.

Two supporting Skills:

shipping-artifacts : defines the documentation artifacts required for an auditable AI project (architecture diagram, flow, permissions, variables, tests, etc.).

intended-vs-implemented : audits the gap between documented intent and actual code, providing evidence for both sides.

Five Commands: /document-app – generate system documentation. /security-audit-static – static security audit based on documented intent. /performance-audit-static – detect performance issues such as missing indexes or caches. /derive-tests – map existing tests to intended coverage. /ship-check – run the full audit and produce a signable release package.

Installation

Claude Cowork (non‑developer friendly)

Open the bottom‑left “Customize”.

Browse Plugins → Personal → +.

Select “Add marketplace from GitHub”.

Enter phuryn/pm-skills.

All nine plugins install in one step.

Claude Code (CLI)

claude plugin marketplace add phuryn/pm-skills
claude plugin install pm-toolkit@pm-skills
claude plugin install pm-product-strategy@pm-skills
claude plugin install pm-product-discovery@pm-skills
claude plugin install pm-market-research@pm-skills
claude plugin install pm-data-analytics@pm-skills
claude plugin install pm-marketing-growth@pm-skills
claude plugin install pm-go-to-market@pm-skills
claude plugin install pm-execution@pm-skills
claude plugin install pm-ai-shipping@pm-skills

Codex CLI (OpenAI)

codex plugin marketplace add phuryn/pm-skills
codex plugin add pm-execution@pm-skills
codex plugin add pm-ai-shipping@pm-skills

PM Brain – Local Markdown Knowledge Base

PM Brain is a local Markdown knowledge base that Claude reads before answering and writes back after. It runs a weekly sweep to detect drift and draft actions.

Core Commands: /ingest <thing> – ingest an artifact (meeting notes, docs, screenshots). /prep <stakeholder> – one‑page brief before a meeting. /review – weekly sweep with six checks. /ideate <problem> – evidence‑backed ideation (3‑7 directions). /risk <feature> – five‑dimensional risk scan. /plan <objective> – draft a plan using a six‑section structure.