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 ericwang915/PythonClaw --skill financegit clone --depth 1 https://github.com/ericwang915/PythonClawWrote 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/ericwang915/pythonclaw/finance)<a href="https://agentmods.dev/skills/ericwang915/pythonclaw/finance"><img src="https://agentmods.dev/badge/skills/ericwang915/pythonclaw/finance/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/ericwang915/pythonclaw/finance"><img src="https://agentmods.dev/badge/skills/ericwang915/pythonclaw/finance.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 | $0.00062 | $0.00453 |
| Opus 5.5 | $0.00025 | $0.00181 |
| Sonnet 5.5 | $0.00012 | $0.00091 |
| Haiku 4.5 | $0.00006 | $0.00045 |
Grade A, and why
finance 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 1mo 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
Finance Skill
Fetch real-time financial data for stocks, crypto, and forex using Yahoo Finance (yfinance).
When to Use
✅ USE this skill when:
- "What's Tesla's stock price?"
- "Compare AAPL and MSFT"
- "Show Bitcoin price"
- "EUR/USD exchange rate"
- "How is [company] stock doing?"
- User asks about stock, crypto, or forex prices
When NOT to Use
❌ DON'T use this skill when:
- Options or futures data → use specialized financial APIs
- Fundamental analysis (P/E, ratios, financials) → use dedicated analytics tools
- Real-time tick-by-tick data → use professional trading feeds
Usage/Commands
python {skill_path}/fetch_quote.py SYMBOL [SYMBOL2 ...]
Options:
--format json— output as JSON (default: human-readable text)--history 5d— include price history (1d, 5d, 1mo, 3mo, 6mo, 1y, 5y, max)
Examples
- "What's Tesla's stock price?" →
python {skill_path}/fetch_quote.py TSLA - "Compare AAPL and MSFT" →
python {skill_path}/fetch_quote.py AAPL MSFT - "Show Bitcoin price" →
python {skill_path}/fetch_quote.py BTC-USD - "EUR/USD exchange rate" →
python {skill_path}/fetch_quote.py EURUSD=X
Notes
- Install dependency:
pip install yfinance - No API key needed — Yahoo Finance is free
- Symbols: stocks (e.g., AAPL), crypto (BTC-USD), forex (EURUSD=X)
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.
- 1mo ago First seen · 52 lines · 62 tokens per session scan A 758064f82b72
finance is a skill published in the GitHub repository ericwang915/PythonClaw (45 stars, last pushed 10d ago), licensed MIT. It adds 62 tokens to every session and 453 once invoked, about $0.0002 per session on Opus 5.5. 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.
Other skills, from other repositories
60s-market
A market-data lookup tool for exchange rates, oil prices, and gold prices.
quant-strategy-engine
A quantitative investing tool for analysing stocks and trading strategies. Quantitative investing uses rules and data, such as valuation, momentum, or quality measures, to evaluate investments.
quickbooks
Read and manage the user's QuickBooks business through Intuit's official MCP server, including reports, invoices, customers, products, payment links, sales settings, and industry benchmarks.
stripe
Manage a merchant's Stripe customers, products, coupons, promotion codes, payments, invoices, and recurring subscriptions. Use for billing-plan changes, payment links, refunds of duplicate card charges, disputes and chargebacks, account balances, payouts, and reconciling processing fees through Stripe's official MCP…
plaid
Use to connect Plaid and read linked financial accounts: metadata, balances, transactions, recurring transactions, liabilities, and investments.
surf
Use this skill — NOT browser or webfetch — for ALL Surf crypto-data calls. 83 endpoints at localhost:8402/v1/surf/ covering CEX/DEX markets, on-chain SQL over 80+ ClickHouse tables (Ethereum, Base, Arbitrum, BSC, TRON, HyperEVM, Tempo), 100M+ labeled wallets, prediction markets (Polymarket + Kalshi), social/CT…