Skill Claude CodeCodex
PM alignment coach and router. Use this skill whenever a product manager (or someone managing products) wants to reflect on their own performance, check their behaviors against a standard of excellence, get coaching, practice a difficult scenario, audit a decision, or understand their blind spots. Trigger on phrases…
Skill Claude CodeCodex
Ground persuasive writing in a real reason people buy. Use when writing or editing copy meant to make someone buy, subscribe, or act (landing pages, ads, offers, positioning), or when auditing a draft that reads as feature-speak — "why would anyone buy this?", "make this benefit-led", "what's the hook?".
Skill Claude CodeCodex
Construct, critique, and audit arguments using the complete methodology from Weston's "A Rulebook for Arguments". Use when building a position, stress-testing logic, identifying fallacies, writing argumentative essays, or preparing for debate. Covers all 45 rules, 19 fallacies, 3 definition rules, deductive forms…
Skill Claude CodeCodex
PM behavioral retrospective. Use this skill whenever a PM wants to debrief a specific situation they recently handled — a meeting, a conflict, a decision, a conversation with an engineer or designer, a feature that shipped badly, a standup that went sideways. The PM describes what happened and you map their actual…
Skill Claude CodeCodex
Outside-in PM perspective generator. Use this skill whenever a PM wants to know how they're actually landing with their team — specifically with designers and engineers. You gather information about how the PM works, then generate a realistic simulation of what their teammates would say about them in a candid peer…
Skill Claude CodeCodex
Analyze technology announcements to surface non-obvious strategic implications using Verbalized Sampling. Works against any context: a business, product, codebase, feature branch, personal project, career, or exploratory domain. Use when a new technology, feature, or capability is announced and you want to understand…
Skill Claude CodeCodex
Generate diverse outputs by prompting for a probability distribution instead of a single response. Implements Verbalized Sampling (VS) from Zhang et al. 2025 — a training-free technique that counteracts LLM mode collapse caused by typicality bias in alignment data. Use when the task needs genuine diversity: creative…
Skill Claude CodeCodex
This skill should be used when a user wants to identify which parts of a codebase are safe to modify with AI ("vibe code") and which require careful human engineering. It classifies files and modules into Leaf (safe to vibe), Branch (caution), or Trunk (hands off) based on dependency isolation, stability, and external…
Skill Claude CodeCodex
Represent messy work as durable obligations, workflow building blocks, fragments, AI/automation insertion points, and exception queues. Use this whenever the user wants to analyze interviews, messy notes, customer research, operational workflows, PM workflows, vertical SaaS opportunities, AI insertion points…
Plugin Claude Code
Plugin marketplace listing 1 plugin: porter-strategy-skills.
Plugin Claude Code
12 executable skills + orchestrator for competitive strategy analysis, extracted from Michael Porter's Competitive Strategy. Five forces, competitor profiling, strategic groups, market signals, generic strategies, competitive moves, and industry-type playbooks — grounded in Porter's original frameworks.
Skill Claude CodeCodex
Analyze industry structure using Porter's Five Forces. Use when asked to assess industry attractiveness, competitive dynamics, profit potential, or structural threats.
Skill Claude CodeCodex
Evaluate market entry opportunities using Porter's entry analysis framework. Use when asked to assess whether to enter a new market, how to enter, or what entry barriers exist.
Skill Claude CodeCodex
Audit a competitive strategy for internal consistency using Porter's tests. Use when evaluating whether a strategy hangs together, after formulating strategy, or when diagnosing strategic drift.
Skill Claude CodeCodex
Design offensive or defensive competitive moves using Porter's framework. Use when planning competitive actions, responding to competitor moves, or managing industry discipline.
Skill Claude CodeCodex
Classify an industry's evolutionary stage and structural type using Porter's criteria. Use when asked to diagnose industry maturity, identify if an industry is emerging/fragmented/declining, or understand industry evolution.
Skill Claude CodeCodex
Map strategic groups within an industry using Porter's framework. Use when asked to segment competitors, identify positioning opportunities, or analyze mobility barriers.
Skill Claude CodeCodex
Route competitive strategy analysis to the right Porter skill. Use when asked for broad competitive analysis, industry assessment, strategy formulation, or any Porter-related question.
Skill Claude CodeCodex
Build a comprehensive competitor profile using Porter's four-component framework. Use when asked to analyze a competitor, predict competitor moves, or assess competitive threats.
Skill Claude CodeCodex
Interpret competitor market signals using Porter's taxonomy. Use when asked to decode competitor announcements, pricing moves, cross-parries, or fighting brands.
Skill Claude CodeCodex
Select the right generic competitive strategy using Porter's framework. Use when asked to choose between cost leadership, differentiation, or focus, or to diagnose being stuck in the middle.
Skill Claude CodeCodex
Choose an end-game strategy for declining industries using Porter's framework. Use when demand is structurally shrinking, industry is contracting, or firms are exiting.
Skill Claude CodeCodex
Formulate strategy for emerging industries using Porter's framework. Use when industry is newly formed, has high uncertainty, no established rules, and early-stage competitors.
Skill Claude CodeCodex
Formulate strategy for fragmented industries using Porter's framework. Use when industry has many small competitors and no dominant player, or when asked about consolidation opportunities.