What is lona-market-data?

Tools for finding, inspecting, and downloading the historical price data needed for algorithmic trading backtests.

Use them to browse preloaded or user data, inspect open-high-low-close-volume time series, and download cryptocurrency data from Binance.

They help you identify what data exists and prepare additional cryptocurrency data when the required dataset is missing.

lona-market-data — Skill for Claude Code by mindsightventures

Install

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.

Any agent

npx skills add mindsightventures/lona-agent-skills --skill market-data

Clone the repo

git clone --depth 1 https://github.com/mindsightventures/lona-agent-skills

Made for: Claude Code.

Or install lona, the plugin that ships this one along with the rest of its 3 skills, 3 commands, 1 agent, 1 MCP server.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/mindsightventures/lona-agent-skills/market-data/github.svg)](https://agentmods.dev/skills/mindsightventures/lona-agent-skills/market-data)

Your own site

<a href="https://agentmods.dev/skills/mindsightventures/lona-agent-skills/market-data"><img src="https://agentmods.dev/badge/skills/mindsightventures/lona-agent-skills/market-data/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/mindsightventures/lona-agent-skills/market-data"><img src="https://agentmods.dev/badge/skills/mindsightventures/lona-agent-skills/market-data.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 59 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 896 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00059	$0.00896
Opus 5	$0.00030	$0.00448
Sonnet 5	$0.00012	$0.00179
Haiku 4.5	$0.00006	$0.00090

Measured 12d ago against content hash d563e858e301, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

lona-market-data 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 12d 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.

skills/market-data/SKILL.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Market Data Management

You have access to Lona's market data tools for browsing available datasets and downloading new data from cryptocurrency exchanges.

Available Tools

Browsing Data

lona_list_symbols: List available market data. Use is_global: true for pre-loaded datasets (US equities, crypto, forex) or is_global: false for user-uploaded/downloaded data
lona_get_symbol: Get symbol details (name, exchange, asset class, frequency, quote currency, date range)
lona_get_symbol_data: Preview OHLCV time-series data (Open, High, Low, Close, Volume)

Downloading Data

lona_download_market_data: Download cryptocurrency data from Binance. Returns a symbol ID for immediate use in backtests

Data Types

Symbols contain OHLCV (Open, High, Low, Close, Volume) time-series data:

Global data (is_global: true): Pre-loaded datasets available to all users — includes US equities, major cryptocurrencies, and forex pairs
User data (is_global: false): Data downloaded or uploaded by the user

Workflows

Find available data

Call lona_list_symbols with is_global: true to browse pre-loaded datasets
Call lona_list_symbols without is_global to see user's own data
Use lona_get_symbol for detailed metadata on a specific symbol
Use lona_get_symbol_data to preview the actual OHLCV data points

Download cryptocurrency data from Binance

Call lona_download_market_data with:
- symbol: Binance spot pair (e.g., BTCUSDT, ETHUSDT, SOLUSDT)
- interval: Candle interval (see supported intervals below)
- start_date and end_date in ISO format (optional — defaults vary by interval)
- limit: Maximum number of candles (optional)
Data downloads and processes automatically
Returns a symbol_id for immediate use with lona_run_backtest

Supported Binance Intervals

Interval	Code	Practical Limit
1 minute	`1m`	~6 months
5 minutes	`5m`	~2 years
15 minutes	`15m`	~3 years
30 minutes	`30m`	~3 years
1 hour	`1h`	Several years
4 hours	`4h`	Several years
1 day	`1d`	Several years

Read the full file on GitHub · 86 lines

Changes

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.

12d ago First seen · 86 lines · 59 tokens per session scan A d563e858e301

Subscribe to this mod's changes

lona-market-data is a skill published in the GitHub repository mindsightventures/lona-agent-skills (4 stars, last pushed 6mo ago), licensed MIT. It adds 59 tokens to every session and 896 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 2026-08-31.

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