Concurrency Primitives
Expert skill for implementing language-level concurrency support including threads, channels, and synchronization
npx skills add a5c-ai/babysitter --skill concurrency-primitives --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Concurrency Primitives Skill ## Overview Expert skill for implementing language-level concurrency support including threads, channels, and synchronization. ## Capabilities - Design threading API and primitives - Implement mutex and condition variables - Implement channel-based message passing - Design async/await and coroutine systems - Implement work-stealing schedulers - Handle thread-local storage - Design memory model and ordering - Implement green threads/goroutines ## Target Processes - concurrency-primitives.js - interpreter-implementation.js - bytecode-vm-implementation.js - garbage-collector-implementation.js ## Dependencies Concurrency theory, Go scheduler references ## Usage Guidelines 1. **Model Choice**: Choose between shared memory and message passing based on language goals 2. **Memory Model**: Define memory ordering semantics clearly 3. **Scheduling**: Design scheduler with fairness and efficiency in mind 4. **Integration**: Ensure GC and concurrency work together correctly 5. **Testing**: Build concurrency stress tests from the start ## Output Schema ```json { "type": "object", "properties": { "model": { "type": "string", "enum": ["shared-memory", "message-passin
- Overview
- Capabilities
- Target Processes
- Dependencies
- Usage Guidelines
- Output Schema
What does the Concurrency Primitives skill do?
Expert skill for implementing language-level concurrency support including threads, channels, and synchronization
How do I install it?
Run `npx skills add a5c-ai/babysitter --skill concurrency-primitives --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From a5c-ai/babysitter, a repository with 1,642 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.