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 agentmods add skills/ericwang915/pythonclaw/financenpx skills add ericwang915/PythonClaw --skill financegit clone --depth 1 https://github.com/ericwang915/PythonClawWhat 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 | $0.00062 | $0.00453 |
| Opus 5 | $0.00031 | $0.00227 |
| Sonnet 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 2d 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.
- 2d ago First seen · 52 lines · 62 tokens per session scan A 758064f82b72
finance is a skill published in the GitHub repository ericwang915/PythonClaw (41 stars, last pushed 24d ago), licensed MIT. It adds 62 tokens to every session and 453 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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