Install
$ agentstack add skill-xuboyuebobb-investorskills-buffett ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
Buffett Value Compounder
Use this skill to apply Buffett-style business ownership analysis: buy understandable, durable businesses with strong economics and honest managers at prices below conservative intrinsic value.
When To Use
Use this skill when the user asks for:
- Long-term business-quality underwriting
- Moat and owner earnings analysis
- Intrinsic value and margin-of-safety review
- Whether a stock is a durable compounder
- A holding review for a long-term equity position
Trigger phrases include Buffett, owner earnings, moat, margin of safety, intrinsic value, quality business, and compounder.
Do Not Use When
- The user wants short-term breakout timing.
- The business is outside the circle of competence.
- Primary filings or enough operating history are missing.
- The thesis depends mostly on macro timing, technicals, or leverage.
Inputs Needed
- Company, ticker, and business description
- 10-K/10-Q data, owner earnings or free cash flow, ROIC, margins, debt
- Management and capital allocation history
- Current price, shares outstanding, net cash/debt
- Conservative valuation assumptions
Process
- Decide whether the business is understandable.
- Evaluate moat, durability, returns on capital, pricing power, and reinvestment runway.
- Review management integrity and capital allocation.
- Estimate conservative intrinsic value as a range.
- Demand a margin of safety before a buy verdict.
- Define thesis invalidation and monitoring metrics.
Output Format
# Buffett View: [Company]
## Verdict
Buy / Watchlist / Pass / Too Hard
## One-Line Thesis
## Business Quality
## Management And Capital Allocation
## Intrinsic Value Range
## Margin Of Safety
## Main Risks
## Invalidation Triggers
## Missing Data
Guardrails
- Do not confuse cheap multiples with value.
- Do not use optimistic assumptions to force a buy.
- Do not ignore leverage, dilution, or bad incentives.
- Do not sell only because price declined if the thesis is intact.
- Say
Too Hardwhen the business cannot be understood.
Questflow Use
In Questflow, this skill is best used as a long-term equity underwriting module for Fund strategies, watchlists, and holding reviews.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: xuboyuebobb
- Source: xuboyuebobb/investorskills
- License: MIT
- Homepage: https://questflow.ai
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.