sota-async-concurrency

sota-async-concurrency is a skill for Claude Code from martinholovsky/SOTA-skills. It costs 151 tokens per session (1,943 once invoked), scanned A, original, CC-BY-4.0.

Rules for writing and reviewing asynchronous and concurrent code, where several operations can run at overlapping times. It covers common runtimes such as Python, JavaScript, Go, Rust, and the Java ecosystem.

In plain words
What is it for?
Use it when working with async and await, threads, processes, event loops, task groups, channels, or queues.
Why use it?
It helps find race conditions, deadlocks, and other timing-related failures that are difficult to reproduce.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the sota-skills plugin — 42 skills, 1 hook shipped together

Good fit Use it when working with async and await, threads, processes, event loops, task groups, channels, or queues.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/martinholovsky/sota-skills/sota-async-concurrency
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add martinholovsky/SOTA-skills --skill sota-async-concurrency
Clone the repo
git clone --depth 1 https://github.com/martinholovsky/SOTA-skills

Made for: Claude Code.

Or install sota-skills, the plugin that ships this one along with the rest of its 42 skills, 1 hook.

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 sota-async-concurrency

README.md
[![agentmods](https://agentmods.dev/badge/skills/martinholovsky/sota-skills/sota-async-concurrency/github.svg)](https://agentmods.dev/skills/martinholovsky/sota-skills/sota-async-concurrency)
Your own site
<a href="https://agentmods.dev/skills/martinholovsky/sota-skills/sota-async-concurrency"><img src="https://agentmods.dev/badge/skills/martinholovsky/sota-skills/sota-async-concurrency/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 sota-async-concurrency

Your own site · 80×15
<a href="https://agentmods.dev/skills/martinholovsky/sota-skills/sota-async-concurrency"><img src="https://agentmods.dev/badge/skills/martinholovsky/sota-skills/sota-async-concurrency.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 151 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,943 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 $0.00151 $0.01943
Opus 5 $0.00076 $0.00971
Sonnet 5 $0.00030 $0.00389
Haiku 4.5 $0.00015 $0.00194

Measured 12d ago against content hash 7b4c7ef79957, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

sota-async-concurrency 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 12d 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.

skills/sota-async-concurrency/SKILL.md · 139 lines

The source is not reproduced here

Licensed CC-BY-4.0

The repository is licensed CC-BY-4.0, 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

7 files 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. 12d ago First seen · 139 lines · 151 tokens per session scan A 7b4c7ef79957

Subscribe to this mod's changes

sota-async-concurrency is a skill published in the GitHub repository martinholovsky/SOTA-skills (19 stars, last pushed today), licensed CC-BY-4.0. It adds 151 tokens to every session and 1,943 once invoked, about $0.0008 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

claude-md-review

Audit a CLAUDE.md file for the patterns that actually degrade Claude Code's output — vagueness, unnamed files, stale facts, and bloat. Use when asked to review, audit, improve, shrink, or fix a CLAUDE.md, and when a project's results feel inconsistent or Claude keeps rediscovering the same context.

wesammustafa/Claude-Code-Everything-You-Need-to-Know · 69 tokens

eval-agents

Audit Claude Code agents defined in .claude/agents/ for description specificity, model tier appropriateness, tools scoping, and system prompt quality. Detects dispatch ambiguity between agents, flags over-permissive tool grants, and checks for human-in-the-loop patterns that break programmatic orchestration. Use when…

FlorianBruniaux/claude-code-ultimate-guide · 93 tokens

land-and-deploy

Merge PR, wait for CI, verify deploy, run canary. The complete landing pipeline.

FlorianBruniaux/claude-code-ultimate-guide · 24 tokens

git-ai-archaeology

Analyze AI config evolution in a git repo. Use when mapping AI adoption history, finding when configs were first introduced, charting commit velocity by month, or identifying maturity phases in a project's AI tooling.

FlorianBruniaux/claude-code-ultimate-guide · 47 tokens

source-command-methodology-advisor

Analyzes your codebase and asks 3 targeted questions to recommend the right AI-assisted development methodology stack.

FlorianBruniaux/claude-code-ultimate-guide · 27 tokens

investigate

Systematic root-cause debugging: find the cause before writing any fix.

FlorianBruniaux/claude-code-ultimate-guide · 17 tokens