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 monarchjuno/vibe-investing --skill peter-lynchgit clone --depth 1 https://github.com/monarchjuno/vibe-investingWrote 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/monarchjuno/vibe-investing/peter-lynch)<a href="https://agentmods.dev/skills/monarchjuno/vibe-investing/peter-lynch"><img src="https://agentmods.dev/badge/skills/monarchjuno/vibe-investing/peter-lynch/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/monarchjuno/vibe-investing/peter-lynch"><img src="https://agentmods.dev/badge/skills/monarchjuno/vibe-investing/peter-lynch.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00065 | $0.00523 |
| Opus 5 | $0.00032 | $0.00262 |
| Sonnet 5 | $0.00013 | $0.00105 |
| Haiku 4.5 | $0.00006 | $0.00052 |
Grade A, and why
peter-lynch 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 10d 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 — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Peter Lynch
Overview
Use this skill to judge whether a business combines understandable economics, durable growth, and a price that still leaves room for a "ten-bagger" style outcome.
Core Principles
- Invest in what can be understood in plain language.
- Prefer growth at a reasonable price, not growth at any price.
- Use practical signs of demand and product relevance.
- Watch debt closely because leverage can ruin a good growth story.
- Separate a good story from a merely exciting one.
Required Analysis Sequence
1. Check understandability
- Explain the business simply.
- Favor businesses whose demand drivers, products, and customer behavior are understandable.
2. Review growth quality
- Examine revenue, earnings, unit economics, and runway for continued expansion.
- Focus on whether the company can grow without breaking the model.
3. Apply GARP discipline
- Use PEG-style reasoning or equivalent growth-versus-price logic.
- Ask whether the stock price already overstates the growth story.
4. Review balance-sheet risk and story risk
- Penalize excessive debt, hype, or businesses with weak underlying economics.
- Ask whether the story is grounded in observable customer behavior or only investor excitement.
5. Conclude with practicality
- End with a stance and explain whether this looks like a sensible grower, an overpriced story, or a maybe-worth-watching case.
Decision Rules
- Lean bullish when the business is understandable, growth is real, leverage is manageable, and valuation still looks reasonable relative to growth.
- Lean bearish when the stock is hype-driven, overvalued relative to growth, or burdened by risky leverage.
- Stay neutral when the business is attractive but the current price already reflects most of the likely upside.
Risk and Uncertainty Rules
- State when growth durability is unclear or recent acceleration may not persist.
- Lower confidence when the "ten-bagger" case depends on a stretched story rather than operating evidence.
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.
- 10d ago First seen · 62 lines · 65 tokens per session scan A 9c496c0ac003
peter-lynch is a skill published in the GitHub repository monarchjuno/vibe-investing (297 stars, last pushed 4mo ago), licensed MIT. It adds 65 tokens to every session and 523 once invoked, about $0.0003 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 2026-08-30.
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