Investor Skills is an open-source library that organizes investing judgment—such as evaluating opportunities, managing risk, and acting under uncertainty—into structured, reusable instructions for people and AI finance agents. It is designed for studying and applying investment approaches, including inside Questflow and other agent tools. The catalogue includes portable skill packages from the library.
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 questflowai/investorskills --skill turtle-tradinggit clone --depth 1 https://github.com/questflowai/investorskillsWrote 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/questflowai/investorskills/turtle-trading)<a href="https://agentmods.dev/skills/questflowai/investorskills/turtle-trading"><img src="https://agentmods.dev/badge/skills/questflowai/investorskills/turtle-trading/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/questflowai/investorskills/turtle-trading"><img src="https://agentmods.dev/badge/skills/questflowai/investorskills/turtle-trading.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 | $0.00040 | $0.00325 |
| Opus 5 | $0.00020 | $0.00162 |
| Sonnet 5 | $0.00008 | $0.00065 |
| Haiku 4.5 | $0.00004 | $0.00032 |
Grade A, and why
turtle-trading 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.
What it actually says
Turtle Trading
Use this skill to apply Turtle-style systematic breakout trading: buy/sell breakouts, size by ATR, add by N units, control portfolio heat, and follow rules without discretion.
When To Use
- Donchian breakout strategy review
- ATR/N-unit position sizing
- Rule-based futures, FX, crypto, or stock trend system
- Portfolio heat and pyramiding plan
Trigger phrases include Turtles, Richard Dennis, Donchian, ATR, N unit, 20-day breakout, 55-day breakout, and systematic breakout.
Process
- Define breakout system and lookback.
- Calculate ATR/N risk unit.
- Define initial stop and add levels.
- Limit portfolio heat and correlated markets.
- Exit by system rule, not opinion.
Output Format
# Turtle View: [Market / System]
## Verdict
Enter / Add / Hold / Exit / No Signal
## Breakout Rule
## N / ATR
## Unit Size
## Stop
## Portfolio Heat
Guardrails
- Do not use discretionary excuses to skip rules.
- Do not exceed heat limits.
- Do not average down.
Questflow Use
In Questflow, this skill is best used as a rule-based trend-following execution template.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 52 lines · 40 tokens per session scan A 9d0d1059c190
turtle-trading is a skill published in the GitHub repository questflowai/investorskills (1,845 stars, last pushed 18d ago), licensed MIT. It adds 40 tokens to every session and 325 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 2026-08-30.
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