openalgo: Skill for Claude Code

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

fd-audit is a skill for Claude Code from marketcalls/openalgo. It costs 94 tokens per session (2,068 once invoked), scanned A, original, AGPL-3.0.

A review for finding resource leaks in OpenAlgo, including open files, sockets, database connections, WebSockets, threads, subprocesses, caches, and memory that keeps growing.

In plain words
What is it for?
Run it after changing code that uses databases, streaming, WebSockets, executors, subprocesses, files, sockets, caches, or module-level registries. It audits the change for both file-descriptor leaks and unbounded memory growth.
Why use it?
It helps catch resources that are opened or created but never closed, stopped, or released. Such leaks can eventually exhaust system limits or make a process use more memory over time.

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 · 2,625 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/fd-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 fd-audit

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/marketcalls/openalgo/fd-audit"><img src="https://agentmods.dev/badge/skills/marketcalls/openalgo/fd-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 94 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,068 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 pass 7 Sept 2026
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 $0.00094 $0.02068
Opus 5 $0.00047 $0.01034
Sonnet 5 $0.00019 $0.00414
Haiku 4.5 $0.00009 $0.00207

Measured 10d ago against content hash d733afc1723c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

fd-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 10d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (soak.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/fd-audit/SKILL.md · 176 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. 10d ago First seen · 176 lines · 94 tokens per session scan A d733afc1723c

Subscribe to this mod's changes

fd-audit is a skill published in the GitHub repository marketcalls/openalgo (2,625 stars, last pushed yesterday), licensed AGPL-3.0. It adds 94 tokens to every session and 2,068 once invoked, about $0.0005 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.

Related

Other skills, from other repositories

gsap-react

GSAP integration with React including useGSAP hook, ref handling, cleanup patterns, and context management. Use when implementing GSAP animations in React components, handling component lifecycle, or building reusable animation hooks.

Bbeierle12/Skill-MCP-Claude · 45 tokens

particles-lifecycle

Particle lifecycle management—emission/spawning, death conditions, object pooling, trails, fade-in/out, and state transitions. Use when particles need birth/death cycles, continuous emission, trail effects, or memory-efficient recycling.

Bbeierle12/Skill-MCP-Claude · 49 tokens

remember

Review the current conversation and capture valuable knowledge — best practices, coding conventions, architecture decisions, workflows, and user feedback — into persistent memory (AGENTS.md) or reusable skills. Use when the user says: (1) remember this, (2) save what we learned, (3) update memory, (4) capture…

langchain-ai/deepagents · 71 tokens

mempalace

MemPalace — Local AI memory with 96.6% recall. Semantic search, temporal knowledge graph, palace architecture (wings/rooms/drawers). Free, no cloud, no API keys.

MemPalace/mempalace · 47 tokens

mem0-vercel-ai-sdk

Mem0 provider for Vercel AI SDK (@mem0/vercel-ai-provider). TRIGGER when: user mentions "vercel ai sdk", "@mem0/vercel-ai-provider", "createMem0", "retrieveMemories", "addMemories", "getMemories", "searchMemories", "mem0 vercel", "AI SDK provider", "AI SDK memory", or is using generateText/streamText with mem0. Also…

mem0ai/mem0 · 146 tokens

mempalace-task

Create, hand off, claim, execute, and close agent tasks through the MemPalace logstream. Use when the user wants to delegate work, prepare a ready-to-paste task for another agent, receive a MemPalace task id, or explicitly launch a supported headless agent in controlled mode.

MemPalace/mempalace · 67 tokens