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 travisjneuman/.claude --skill case-interview-practicegit clone --depth 1 https://github.com/travisjneuman/.claudeWrote 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/travisjneuman/.claude/case-interview-practice)<a href="https://agentmods.dev/skills/travisjneuman/.claude/case-interview-practice"><img src="https://agentmods.dev/badge/skills/travisjneuman/.claude/case-interview-practice/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/travisjneuman/.claude/case-interview-practice"><img src="https://agentmods.dev/badge/skills/travisjneuman/.claude/case-interview-practice.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- 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 | $0.00039 | $0.03855 |
| Opus 5 | $0.00019 | $0.01928 |
| Sonnet 5 | $0.00008 | $0.00771 |
| Haiku 4.5 | $0.00004 | $0.00385 |
Grade A, and why
case-interview-practice 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 513 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Case Interview Practice
Comprehensive frameworks and methodology for management consulting case interviews, business problem-solving, and structured analytical thinking.
Case Interview Types
| Type | Description | Common At | Key Skill Tested |
|---|---|---|---|
| Profitability | Why are profits declining? How to improve? | All firms | Structured decomposition, math |
| Market Sizing | Estimate the size of a market or quantity | All firms | Logical segmentation, math |
| Market Entry | Should company X enter market Y? | McKinsey, BCG | Strategic thinking, risk assessment |
| M&A | Should company X acquire company Y? | All firms | Valuation, synergy analysis |
| Pricing | How should we price product X? | Bain, BCG | Economics, customer segmentation |
| Operations | How to improve efficiency/reduce costs? | Deloitte, Accenture | Process analysis, prioritization |
| Growth Strategy | How should company X grow revenue? | All firms | Creativity, market analysis |
| New Product | Should we launch product X? | McKinsey, BCG | Market analysis, feasibility |
Framework Toolkit
Profitability Framework
PROFIT = REVENUE - COSTS
REVENUE:
Revenue = Price x Quantity
|
|-- Price
| |-- Has pricing changed?
| |-- Competitive pricing pressure?
| |-- Product mix shift?
|
|-- Quantity
|-- Customer count changed?
|-- Purchase frequency changed?
|-- Market size changed?
|-- Market share changed?
COSTS:
|-- Fixed Costs
| |-- Rent, salaries, depreciation
| |-- Have fixed costs increased?
| |-- Capacity utilization?
|
|-- Variable Costs
|-- COGS, materials, labor per unit
|-- Input cost changes?
|-- Efficiency changes?
|-- Supplier issues?
3Cs Framework
COMPANY:
- Core competencies and capabilities
- Financial position and resources
- Current product/service portfolio
- Brand strength and reputation
- Operational efficiency
CUSTOMERS:
- Market size and growth
- Customer segments and needs
- Purchase behavior and decision factors
- Price sensitivity
- Unmet needs and pain points
COMPETITORS:
- Key players and market shares
- Competitive advantages/disadvantages
- Barriers to entry
- Substitute products
- Likely competitive response
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.
- 7d ago First seen · 513 lines · 39 tokens per session scan A 4bb0612ea9c5
case-interview-practice is a skill published in the GitHub repository travisjneuman/.claude (97 stars, last pushed 5d ago), licensed MIT. It adds 39 tokens to every session and 3,855 once invoked, about $0.0002 per session on Opus 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 2026-09-03.
Other skills, from other repositories
stride-analysis-patterns
Apply STRIDE methodology to systematically identify threats. Use when analyzing system security, conducting threat modeling sessions, or creating security documentation.
blind-spot-pass
Use before starting work in a domain you don't know well, to surface the "unknown unknowns" — the things you don't even know to ask about — and learn just enough to prompt and decide well. Implements the "blind spot pass" pattern from Anthropic's Fable "finding your unknowns" field guide. Triggers when you say "I'm…
prompts-chat
Use when searching, installing, or improving AI skills and prompts via prompts.chat or skills.sh. Triggers on skill search, prompt lookup, install skill, improve prompt, prompts.chat.
plan-review-architecture
Architecture-dimension reviewer for written plans. Use when running plan-review or directly when an architectural review is wanted. Activate for keywords like "architecture review", "data flow", "failure modes", "rollback", "edge cases", "test matrix". Scores 5 sub-dimensions 0-10, produces ranked fixes. Always cite…
plan-review-experience
Experience-dimension reviewer for written plans (UX + DX). Use when running plan-review or directly when an experience review is wanted. Activate for keywords like "UX review", "DX review", "experience review", "error states", "API ergonomics", "developer experience", "user states". Scores 5 sub-dimensions 0-10…
stuck
Diagnoses a broken course setup by reading the folder, so the student never has to describe the problem in English. Takes no argument. Reports which class they are on and which files are filled, then names one blocker and one fix: Claude Code opened at the wrong level, .claude/skills/ missing, skills not loading…