OpenAlgo is a self-hosted algorithmic trading platform that lets users design, test, schedule, and execute trading strategies through a common interface for broker integrations. Traders can use its APIs, Python strategy host, and visual flow builder with supported securities and crypto brokers. The catalogue entries provide skills and instructions for working with OpenAlgo.
Borrowing it
Nothing to install: this file belongs to marketcalls/openalgo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/marketcalls/openalgo/main/CLAUDE.mdgit clone --depth 1 https://github.com/marketcalls/openalgoWrote 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/instructions/marketcalls/openalgo/claude-md)<a href="https://agentmods.dev/instructions/marketcalls/openalgo/claude-md"><img src="https://agentmods.dev/badge/instructions/marketcalls/openalgo/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.
<a href="https://agentmods.dev/instructions/marketcalls/openalgo/claude-md"><img src="https://agentmods.dev/badge/instructions/marketcalls/openalgo/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.12362 | $0.12362 |
| Opus 5.5 | $0.04945 | $0.04945 |
| Sonnet 5.5 | $0.02472 | $0.02472 |
| Haiku 4.5 | $0.01236 | $0.01236 |
Grade A, and why
openalgo 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 8d 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.
The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 8d ago Changed · +12 tokens per session cce89d724367
- 9d ago Changed · +1 lines · +75 tokens per session fd92f70ca2ec
- 12d ago Changed · +96 lines · +1,604 tokens per session 31c6b7c46858
- 19d ago Changed · +2 lines · +43 tokens per session 5abf206a85cf
- 25d ago Changed 5812603c8630
- 26d ago Changed · +17 lines · +793 tokens per session e3cb6232f784
- 1mo ago Changed · +15 lines · +230 tokens per session 5883c84f07d9
- 1mo ago Changed · +29 lines · +429 tokens per session 58a935d9e10c
- 1mo ago Changed · +42 lines · +653 tokens per session e3475b6a4888
- 1mo ago First seen · 548 lines · 8,523 tokens per session scan A e86e0c0a7562
openalgo CLAUDE.md is an instructions file published in the GitHub repository marketcalls/openalgo (2,919 stars, last pushed yesterday), licensed AGPL-3.0. It adds 12,362 tokens to every session, about $0.0494 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 instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.