What is openalgo-claude-plugin CLAUDE.md?

Repository instructions for an OpenAlgo marketplace, a catalogue that distributes plugins for algorithmic trading in Indian markets.

Use them when working on market data, orders, options strategies, portfolios, charts, dashboards, or marketplace entries in that repository.

They explain the repository layout and project rules, reducing mistakes when developing or adding skills for trading applications.

How marketcalls/openalgo-claude-plugin configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to marketcalls/openalgo-claude-plugin. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/marketcalls/openalgo-claude-plugin/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/marketcalls/openalgo-claude-plugin

Made for: Claude Code.

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/instructions/marketcalls/openalgo-claude-plugin/claude-md/github.svg)](https://agentmods.dev/instructions/marketcalls/openalgo-claude-plugin/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/marketcalls/openalgo-claude-plugin/claude-md"><img src="https://agentmods.dev/badge/instructions/marketcalls/openalgo-claude-plugin/claude-md/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/instructions/marketcalls/openalgo-claude-plugin/claude-md"><img src="https://agentmods.dev/badge/instructions/marketcalls/openalgo-claude-plugin/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,861 This file is loaded in full into every session.

When invoked 1,861 The same file — it is already loaded in full.

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	$0.01861	$0.01861
Opus 5.5	$0.00744	$0.00744
Sonnet 5.5	$0.00372	$0.00372
Haiku 4.5	$0.00186	$0.00186

Measured 2mo ago against content hash b4d589152d0f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

openalgo-claude-plugin CLAUDE.md 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 2mo 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.

CLAUDE.md · 263 lines

How it starts

The opening of the file, as written. The whole thing — 263 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OpenAlgo Marketplace - Claude Code Plugin Marketplace

This repository is a Claude Code plugin marketplace that distributes the openalgo-python plugin to developers building algorithmic trading applications, trading strategies, real-time dashboards, and data visualization tools.

Repository Structure

openalgo_marketplace/
├── .claude-plugin/
│   └── marketplace.json          # Marketplace catalog (lists available plugins)
└── plugins/
    └── openalgo-python/          # The actual plugin
        ├── .claude-plugin/
        │   └── plugin.json       # Plugin metadata
        ├── skills/
        │   ├── trading-core/     # Order placement, smart orders, basket orders
        │   ├── options-trading/  # Options strategies, multi-leg orders, Greeks
        │   ├── market-data/      # Quotes, history, streaming, option chains
        │   ├── visualization/    # Charts, payoff diagrams, dashboards
        │   └── portfolio/        # Funds, positions, holdings, margin
        ├── README.md             # Plugin documentation
        └── LICENSE               # AGPL-3.0 License

Philosophy: Unified Trading API for Indian Markets

Make algorithmic trading accessible through a single API across 25+ brokers—no broker-specific code required.

When working on this repository, follow these principles:

Understand → Grasp the OpenAlgo SDK capabilities and symbol standardization
Plan → Design trading strategies, dashboards, or applications
Implement → Build using the unified API patterns
Test → Use Analyzer mode for paper trading before going live
Document → Update skills and examples as new patterns emerge

Working with This Repository

Adding a New Skill

Create skill directory: plugins/openalgo-python/skills/new-skill/

Add skill structure:

skills/new-skill/
├── SKILL.md           # Skill definition with frontmatter (name, description)
├── scripts/           # Python helper scripts
└── requirements.txt   # Python dependencies

Update plugin.json description with new skill count
Update marketplace.json description with new skill count
Update README.md with skill documentation
Test with claude skill new-skill

Read the full file on GitHub · 263 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.

2mo ago First seen · 263 lines · 1,861 tokens per session scan A b4d589152d0f

Subscribe to this mod's changes

openalgo-claude-plugin CLAUDE.md is an instructions file published in the GitHub repository marketcalls/openalgo-claude-plugin (4 stars, last pushed 10mo ago), licensed MIT. It adds 1,861 tokens to every session, about $0.0074 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 2026-08-31.

Finance and fintech claude-code-marketplace claude-code-plugin claude-code-skills openalgo openalgo-python-sdk

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openalgo-claude-plugin: Instructions file for Claude Code