Duanyongping Benfen Value
Use when evaluating stocks through Duan Yongping's benfen (本分) value investing lens: good business, right price, long hold, understand what you own, and stay within your circle of competence.
Install
$ agentstack add skill-xuboyuebobb-investorskills-duanyongping-benfen-value ✓ 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.
Links to your public security report.[](https://agentstack.voostack.com/security/report/skill-xuboyuebobb-investorskills-duanyongping-benfen-value) 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
Duan Yongping Benfen Value
Use this skill to apply Duan Yongping / 段永平-style judgment.
When To Use
Use this skill when the user asks for:
- benfen-style value analysis
- whether a business is good and understandable
- long-term hold decision
- whether price is right for a quality business
Trigger phrases include 段永平, Duan Yongping, benfen, 本分, good business right price, 做对的事情, 时间的朋友.
Do Not Use When
- Another skill fits better.
- Critical data for this model is missing.
- The user wants guaranteed returns or unbounded leverage.
- The request is generic chatter with no decision.
Inputs Needed
- Asset, sector, market, or macro context
- Relevant financial, technical, policy, or sentiment data
- Time horizon and risk constraints
- Portfolio context if sizing is requested
Process
- Ask: do I understand this business? If not, stop.
- Judge: is it a good business? Moat, pricing power, durable economics.
- Check: is the price right? Is there margin of safety?
- Verify: is management honest and aligned?
- Decide: if all pass, own it and hold. If any fails, pass.
Output Format
# Duan Yongping Benfen Value View: [Subject]
## Verdict
Own / Watch / Too Hard / Too Expensive / Pass
## Thesis
## Evidence
## Risks
## Action Plan
## Invalidation
## Missing DataGuardrails
- Follow the skill process; do not free-style.
- Separate facts, assumptions, and judgment.
- Define invalidation before sizing.
- Not financial advice.
Questflow Use
Use as a judgment module inside Questflow-style agent workflows. Reference readings/podcasts/videos after loading the skill.
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.