Async Programming — race-free asyncio and Tokio with a TDD workflow
Concurrent Python (asyncio) and Rust (Tokio) done safely: race-condition prevention, locks and semaphores, resource cleanup on cancellation, graceful shutdown, plus security-relevant CVEs and pre-commit checklists
- What
- Concurrent Python (asyncio) and Rust (Tokio) done safely: race-condition prevention, locks and semaphores, resource cleanup on cancellation, graceful shutdown, plus security-relevant CVEs and pre-commit checklists
- Cost
- Free
- Needs
- a Python (asyncio) or Rust (Tokio) project with concurrent code — the skill is an expertise guide the agent follows, not software
- Install
- Copy the installer prompt below into your Muse — your agent does the rest.
Curated by Skill Harbor — @martinholovsky's async-programming: an async programming skill for Python (asyncio) and Rust (Tokio) with TDD-first discipline. Core principles: write async tests before implementation, performance awareness (asyncio.gather, semaphores, no blocking calls), identify race conditions at await points, protect shared state with locks/atomic ops, manage resources with async context managers, handle errors in concurrent contexts, avoid deadlocks. Ships a decision framework, concrete bad-vs-good code patterns (gather, semaphores, TaskGroups, executors for CPU work), atomic DB operations, graceful shutdown with cancellation handling, a security standards section (race conditions, TOCTOU, CVE-2024-12254 and others), common anti-patterns, and phased checklists. Honest caveats: the skill self-declares risk_level MEDIUM — race conditions and timing vulnerabilities are the subject matter, and the content is defensive (how to prevent them), not offensive; it points to bundled references/ files (security examples, advanced patterns) that ship with the repo. The skill's frontmatter states no license; the catalog manifest records Unlicense — manifest takes precedence. Skill Harbor never reviews the code, review it yourself before use. Discovered via skills.sh.
Version:
Install
Prerequisites: a Python (asyncio) or Rust (Tokio) project with concurrent code — the skill is an expertise guide the agent follows, not software Install "Async Programming — race-free asyncio and Tokio with a TDD workflow" for me. It gives my agent @martinholovsky's async expertise: TDD-first async development, race-condition identification and prevention, locks and atomic operations for shared state, async context managers for resource safety, asyncio.gather and semaphores for performance, TaskGroups, graceful shutdown with cancellation handling, security standards (TOCTOU, resource leaks, CVE references), and pre-implementation checklists. License note: the skill's frontmatter states no license; the catalog manifest records Unlicense — manifest takes precedence. Repository: https://github.com/martinholovsky/claude-skills-generator/blob/main/skills/async-programming/SKILL.md 1. Fetch the SKILL.md file (and any helper files) from the repository path into a temporary folder and summarize what it does in one or two sentences. 2. Safety check: review the SKILL.md and scripts for anything suspicious (unexpected network calls, shell commands, credential harvesting). This repo should contain zero secrets in code. Verify that holds here; STOP on any red flag and tell me. 3. Install it as a skill: copy SKILL.md and its helper files into the agent's skills directory, in a folder named "async-programming". 4. Verify with no network calls: frontmatter valid, files in place. 5. Report what was installed, where, and what I still need to do myself (nothing — it's an expertise guide the agent applies when writing concurrent Python/Rust code). GitHub is optional: if I have a GitHub account or the gh CLI, you may use it; otherwise public access is fine. Never require it unless it's in the prerequisites above. Rules: don't touch anything outside the temp folder and the install target. If anything looks off, stop and ask me.
Questions
How do I install a build?
Every product page includes a copy-paste install prompt. Paste it into your Muse and it sets the build up for you — no manual configuration.
Where does my money go?
Straight to the seller. Skill Harbor never processes payments: checkout happens on the seller’s own page, usually Stripe.
What does the ✓ next to a creator’s name mean?
It means we confirmed the identity of the person behind the listing. It says nothing about the code itself — always check a build before installing it.