openalgo: Skill for Claude Code

.claude/skills/security-audit/SKILL.md

security-audit is a skill for Claude Code from marketcalls/openalgo. It costs 67 tokens per session (1,772 once invoked), scanned A, original, AGPL-3.0.

A scheduled security review of an application's backend, frontend, database, cache, routes, and software dependencies.

In plain words
What is it for?
Use it for monthly or twice-monthly checks, release reviews, dependency-bump reviews, vulnerability scans, and dated spreadsheet reports.
Why use it?
It helps uncover security issues before releases or after dependency changes, when problems might otherwise go unnoticed.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

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 · 2,616 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/security-audit/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 security-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/marketcalls/openalgo/security-audit.svg)](https://agentmods.dev/skills/marketcalls/openalgo/security-audit)
Your own site
<a href="https://agentmods.dev/skills/marketcalls/openalgo/security-audit"><img src="https://agentmods.dev/badge/skills/marketcalls/openalgo/security-audit.svg" alt="Measured on agentmods" height="20"></a>
Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,772 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Tool Misuse · line 34
    Tool defaults are unsafe or overly permissive (e.g. disabled TLS verification, no authentication, world-writable permissions). Unsafe defaults widen the attack surface.
    Fix: Override unsafe defaults with secure settings (verify=True, auth required, restrictive permissions). Review and harden all tool configurations.
How audits are shown
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 $0.00067 $0.01772
Opus 5 $0.00034 $0.00886
Sonnet 5 $0.00013 $0.00354
Haiku 4.5 $0.00007 $0.00177

Measured 9d ago against content hash 5e5a7258d616, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

security-audit 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 9d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (audit.py), 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/security-audit/SKILL.md · 126 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

Files

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.

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. 9d ago First seen · 126 lines · 67 tokens per session scan A 5e5a7258d616

Subscribe to this mod's changes

security-audit is a skill published in the GitHub repository marketcalls/openalgo (2,616 stars, last pushed today), licensed AGPL-3.0. It adds 67 tokens to every session and 1,772 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.