janvoss93

janvoss93 is a skill for Claude Code from mooreslaws/expert-mind-skill. It costs 45 tokens per session (1,427 once invoked), scanned A, original, MIT.

A writing and analysis perspective on angel investing, venture capital, and managing personal wealth. Angel investing means investing your own money in early-stage companies.

In plain words
What is it for?
Use it for startup-investment research, venture-capital decisions, due diligence, family-office planning, or exit-liquidity questions.
Why use it?
It helps structure decisions about financial safety, investment risk, company checks, portfolio liquidity, and money after a business exit.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: positional $N argument.

Part of the expert-mind-skill plugin — 21 skills, 4 commands, 1 hook shipped together

Good fit Use it for startup-investment research, venture-capital decisions, due diligence, family-office planning, or exit-liquidity questions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mooreslaws/expert-mind-skill/janvoss93
Install

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.

Any agent
npx skills add mooreslaws/expert-mind-skill --skill janvoss93
Clone the repo
git clone --depth 1 https://github.com/mooreslaws/expert-mind-skill

Made for: Claude Code.

Or install expert-mind-skill, the plugin that ships this one along with the rest of its 21 skills, 4 commands, 1 hook.

Wrote 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.

agentmods badge for janvoss93

README.md
[![agentmods](https://agentmods.dev/badge/skills/mooreslaws/expert-mind-skill/janvoss93/github.svg)](https://agentmods.dev/skills/mooreslaws/expert-mind-skill/janvoss93)
Your own site
<a href="https://agentmods.dev/skills/mooreslaws/expert-mind-skill/janvoss93"><img src="https://agentmods.dev/badge/skills/mooreslaws/expert-mind-skill/janvoss93/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.

agentmods 80×15 button for janvoss93

Your own site · 80×15
<a href="https://agentmods.dev/skills/mooreslaws/expert-mind-skill/janvoss93"><img src="https://agentmods.dev/badge/skills/mooreslaws/expert-mind-skill/janvoss93.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,427 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00045 $0.01427
Opus 5 $0.00023 $0.00714
Sonnet 5 $0.00009 $0.00285
Haiku 4.5 $0.00005 $0.00143

Measured 9d ago against content hash 793197d539b2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

janvoss93 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 9d 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.

skills/janvoss93/SKILL.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Jan Voss

Angel investing, VC & wealth management.

Voice: Tactical, screenshot-driven, real numbers. Walks through screenshots of ad accounts and creatives.

Frameworks

  • Early-stage founders should prioritize time protection and quality-of-life investments over financial optimization, focusing first on safety buckets (3-12 months expenses) and retirement before considering high-effort, low-impact investments like individual stocks or angel investing.
  • For wealth management after exit, focus on 'required return' (what portfolio must generate to sustain lifestyle) rather than 'desired return', using clearly segmented buckets like the 'Market Bucket' for stable liquid assets that guarantee lifestyle maintenance independent of riskier bets.
  • VC portfolio liquidity strategies vary by performance tier: underperformers (<1x) should be liquidated early for >0 recovery, stable performers (1-5x) suit PE-style solutions like management buyouts, and outperformers (5-10x+) warrant secondary sales while preserving power law upside.
  • A 'value trap' occurs when an asset appears undervalued based on surface metrics (market cap vs. holdings) but actually isn't due to structural factors: illiquidity of underlying assets, lack of arbitrage mechanisms, debt/preference obligations obscuring true equity value, and absence of catalysts to close the discount.
  • Family offices fail at venture by mixing PE characteristics (downside protection, predictable outcomes) with VC structure (small minority checks, hands-off approach), creating a stuck-in-the-middle strategy. Success requires committing fully to either PE (large checks, hands-on involvement, 2-3x returns) or VC (portfolio approach, accepting defaults, moonshot upside).
  • Investors should distinguish between asset classes where they can generate Alpha (skill-based excess returns) versus Beta (market returns), and within Beta investments, pursue 'Structural Alpha'—small, consistent excess returns from complexity premiums that don't require traditional active management volatility.
  • Structural Alpha refers to excess returns generated not through volatility or traditional risk-taking, but through exploiting persistent market inefficiencies or structural quirks—though these come with uncommon, non-traditional risks (regulatory changes, counterparty defaults, complexity premiums) that require different risk management approaches than standard market volatility.
  • Wealth management advice for affluent individuals ($2-25M net worth) centers on three distinct questions: how to earn it (entrepreneurial success), how to invest it (asset allocation), and how to spend it (sustainable lifestyle spending without depleting capital or inheritance).
  • Define your venture investment focus across four dimensions—Stage, Industry, Geography, and Type of Opportunity—before deploying capital, or risk locking up capital in companies where you can neither add value nor exit.

Read the full file on GitHub · 63 lines

Changes

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.

  1. 9d ago First seen · 63 lines · 45 tokens per session scan A 793197d539b2

Subscribe to this mod's changes

janvoss93 is a skill published in the GitHub repository mooreslaws/expert-mind-skill (5 stars, last pushed 2mo ago), licensed MIT. It adds 45 tokens to every session and 1,427 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 2026-08-31.

Related

Other skills, from other repositories

chief-financial-officer

Owns the financial position: planning, budgeting, forecasting, unit economics, cash, and the numbers the business is run and reported on. Use this to build or challenge a budget, model a decision's financial consequence, assess unit economics or runway, evaluate an investment or spend request, set financial controls…

cbrock84/headcount · 88 tokens

fundraising-and-investor-relations

Raises capital and manages the relationship afterward — deciding how much and why, understanding what dilution and preferences actually cost, running a process with real competitive tension, preparing for diligence before it starts, and reporting to investors and a board in a way that keeps support when results are…

cbrock84/headcount · 91 tokens

cost-accounting

Establishes what something actually costs — fixed, variable and mixed cost behavior, absorption versus variable costing, job-order, process and activity-based methods, breakeven and operating leverage, and price/volume/mix decomposition. Use this to set a price floor, explain why revenue or margin moved, decide make…

cbrock84/headcount · 92 tokens

financial-statement-analysis

Reads a set of financial statements and establishes what changed and why — fluctuation analysis against prior period and against budget, profitability, liquidity, solvency and efficiency ratios, benchmarking, and the non-GAAP measures presented alongside them. Use this to interpret results, review a counterparty's or…

cbrock84/headcount · 93 tokens

internal-controls-and-audit

Designs and tests controls over financial reporting — segregation of duties, approval limits, evidence, and preparing for audit. Use this to design controls for a process, prepare for an external audit, respond to an audit finding, set approval thresholds, or assess where a small team's segregation of duties is…

cbrock84/headcount · 67 tokens

payroll-operations

Runs the pay cycle so it is right, on time, and provable — the calendar and cutoffs, what feeds pay from the HRIS and time systems, gross-to-net and the deductions in it, multi-jurisdiction registration and tax filing, off-cycle payments and corrections, and the reconciliation to the general ledger. Use this to design…

cbrock84/headcount · 104 tokens