openalgo: Skill for Claude Code

.claude/skills/openscript/SKILL.md

openscript is a skill for Claude Code from marketcalls/openalgo. It costs 117 tokens per session (2,234 once invoked), scanned A, original, AGPL-3.0.

A tool for writing OpenScript studies, indicators, strategies, and backtest scripts for OpenAlgo, including ports from other charting platforms.

In plain words
What is it for?
It helps create, convert, troubleshoot, compile, and install OpenScript files in the expected strategies directory.
Why use it?
It keeps generated scripts from being installed until they compile, reducing the risk of adding broken trading code.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

This is marketcalls/openalgo's own configuration. It tells Claude Code how to work on openalgo itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything openalgo configures →

About the project

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.

marketcalls/openalgo · 2,919 stars · on GitHub · docs.openalgo.in

Reuse

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.

Copy the file
curl -O https://raw.githubusercontent.com/marketcalls/openalgo/main/.claude/skills/openscript/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/marketcalls/openalgo

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.

agentmods badge for openscript

README.md
[![agentmods](https://agentmods.dev/badge/skills/marketcalls/openalgo/openscript/github.svg)](https://agentmods.dev/skills/marketcalls/openalgo/openscript)
Your own site
<a href="https://agentmods.dev/skills/marketcalls/openalgo/openscript"><img src="https://agentmods.dev/badge/skills/marketcalls/openalgo/openscript/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.

agentmods 80×15 button for openscript

Your own site · 80×15
<a href="https://agentmods.dev/skills/marketcalls/openalgo/openscript"><img src="https://agentmods.dev/badge/skills/marketcalls/openalgo/openscript.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 117 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,234 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 unknown 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00117 $0.02234
Opus 5.5 $0.00047 $0.00894
Sonnet 5.5 $0.00023 $0.00447
Haiku 4.5 $0.00012 $0.00223

Measured 20d ago against content hash 0383d0d92bb2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

openscript 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 20d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (check-pitfalls.mjs, coverage.mjs, generate-reference.mjs, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/skills/openscript/SKILL.md · 169 lines

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.

Read it on GitHub

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.

  1. 20d ago Changed · +7 lines · +23 tokens per session 0383d0d92bb2
  2. 25d ago Changed · +28 lines 93a9150773db
  3. 1mo ago First seen · 134 lines · 94 tokens per session scan A 14b2dcb79d71

Subscribe to this mod's changes

openscript is a skill published in the GitHub repository marketcalls/openalgo (2,919 stars, last pushed yesterday), licensed AGPL-3.0. It adds 117 tokens to every session and 2,234 once invoked, about $0.0005 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 2026-09-23.

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