phuryn/pm-skills is a marketplace of reusable skills, commands, and plugins that guide AI assistants through product-management work such as discovery, strategy, planning, metrics, launches, and growth. It is for product managers and teams using Claude Code, Cowork, or compatible assistants. The catalogue entries are the project's own workflows and extensions.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add phuryn/pm-skills --skill beachhead-segmentgit clone --depth 1 https://github.com/phuryn/pm-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/phuryn/pm-skills/beachhead-segment)<a href="https://agentmods.dev/skills/phuryn/pm-skills/beachhead-segment"><img src="https://agentmods.dev/badge/skills/phuryn/pm-skills/beachhead-segment/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/phuryn/pm-skills/beachhead-segment"><img src="https://agentmods.dev/badge/skills/phuryn/pm-skills/beachhead-segment.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00058 | $0.01210 |
| Opus 5.5 | $0.00023 | $0.00484 |
| Sonnet 5.5 | $0.00012 | $0.00242 |
| Haiku 4.5 | $0.00006 | $0.00121 |
Grade A, and why
beachhead-segment scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
3 near-identical copies found in the catalogue:
- beachhead-segment — 100% identical, 0 lines differ
- beachhead-segment — 100% identical, 0 lines differ
- beachhead-segment — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 146 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Beachhead Segment
Overview
Identify the first beachhead market segment for product launch. This skill evaluates potential market segments against key criteria to find your initial winning segment that enables fast PMF validation and adjacent expansion.
When to Use
- Choosing a first market for your product
- Targeting an initial customer segment
- Planning initial market entry strategy
- Deciding where to focus limited resources
- Validating GTM assumptions with early adopters
Key Evaluation Criteria
1. Burning Pain Point
Does this segment experience an acute, unmet problem?
- Daily frustration with the status quo
- Significant productivity loss or cost impact
- Emotional urgency to find a solution
- Current workarounds are expensive or fragile
- Problem is getting worse over time
2. Willingness to Pay
Does this segment have budget and motivation to pay for a solution?
- Documented budget allocation for this problem area
- ROI is clear and compelling (value > cost)
- Economic impact of problem justifies solution cost
- Decision-maker has autonomy or influence over budget
- No free or DIY alternatives that fully satisfy need
3. Winnable Market Share
Can you realistically capture 60-70% of this segment in 3-18 months?
- Segment is large enough but not oversaturated
- Limited competition or easy differentiation
- Market players are fragmented or complacent
- Your product has clear competitive advantage
- You have unique access or distribution advantage
4. Referral Potential
Will customers naturally refer or recommend to others?
- Segment contains professional communities
- Customers interact with adjacent segments (expansion opportunity)
- High word-of-mouth culture in this industry
- Network effects within the segment
- Solving problem for one creates demand in adjacent segments
How It Works
Step 1: List Potential Segments
Brainstorm all possible target segments:
- Industry verticals (SaaS, healthcare, manufacturing, etc.)
- Company size (SMB, mid-market, enterprise)
- Job titles or roles
- Geographic regions
- Use cases or use-case variations
- Customer maturity level
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 146 lines · 58 tokens per session scan A a3f94e98c053
beachhead-segment is a skill published in the GitHub repository phuryn/pm-skills (27,326 stars, last pushed 8d ago), licensed MIT. It adds 58 tokens to every session and 1,210 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
becoming-senior-pm
Use this skill when the user asks "how do I become a senior PM", "what does senior PM actually mean", "I want to get promoted to senior", "what's the difference between PM and senior PM", "I've been a PM for 2–3 years and want to grow", "my manager says I need to work more strategically", "I'm stuck at PM level", or…
founding-pm
Use this skill when the user says "I'm the first PM", "founding PM", "I joined a startup as the only PM", "how do I set up PM processes from scratch", "no PM infrastructure exists", "I'm building the PM function", "what should a first PM do in 90 days", or is navigating the unique challenges of being an early-stage PM…
ai-feature-monetization
Use this skill when the user asks specifically about "how to monetize AI features", "should AI be a separate tier", "pricing for AI capabilities", "how to charge for AI", "AI add-on vs. bundle", "AI feature pricing strategy", or is adding AI capabilities to an existing product and wants to decide how to monetize them.…
altitude-horizon
Use this skill when the user asks about "altitude and horizon framework", "Shreyas Doshi altitude", "working at the right level", "am I too in the weeds", "I'm too tactical", "how do I work at the right altitude", "horizon thinking for PMs", or wants to evaluate whether they're operating at the right level of…
attitudinal-segmentation
Use this skill when the user asks about "attitudinal segmentation", "segmenting by attitude", "AI embracer vs skeptic", "how to segment our users beyond demographics", "psychographic segmentation", "behavioral segmentation", "how users feel about AI", or wants to go beyond demographic user segments to understand…
competitive-positioning
Use this skill when the user asks for "competitive analysis", "who are our competitors", "competitive landscape", "how do we compare to X", "competitive positioning", "how do we differentiate", "what's our competitive advantage", "are we differentiated", or wants to understand the competitive context and define how to…