Best async programming skills for Claude Code, Codex and other agents.

Professional code security audit skill covering 55+ vulnerability types.

3stoneBrother/code-audit

Procedure for adding or changing YugabyteDB Active Session History wait states in TServer and DocDB C++ code, including the macro to use for sync and async paths.

yugabyte/yugabyte-db

Builds or extends a custom Mirage virtual filesystem adapter for an API, database, object store or app data, with a working mount configuration and filesystem tests.

strukto-ai/mirage

WooYun business logic vulnerability methodology — 22,132 real cases across 6 domains (authentication bypass, authorization bypass, payment tampering, information disclosure, logic flaws…

tanweai/wooyun-legacy

Idiomatic Go patterns, best practices, and conventions for building robust, efficient, and maintainable Go applications.

antoniopaya22/go-rest-template

Implements concurrent Go patterns using goroutines and channels, designs and builds microservices with gRPC or REST, optimizes Go application performance with pprof, and enforces idiomatic Go with…

antoniopaya22/go-rest-template

A skill your agent uses when building real-time, bidirectional streaming applications with the Gemini Live API, or migrating legacy Live models (2.0/2.5/3.1) to Gemini 3.8 Live.

google-gemini/gemini-skills

Master Rust async programming with Tokio, async traits, error handling, and concurrent patterns.

diodeme/Gold-Band

Diagnose Swift Concurrency issues, refactor callback-based code to async/await, and guide Swift 6 migration when working with tasks, actors, @MainActor, Sendable, data races, thread safety, or…

henrypldev/react-native-nitro-mlx

Introspect, explain, and improve Ralph Orchestrator using its published llms.txt doc map.

mikeyobrien/ralph-orchestrator

Executes one selected story or bounded retrospective correction through an executable plan, or one authorized planless slice from a selected simple story or a contextual instruction, with…

terryyin/lizard

Reviews Swift code for concurrency correctness, modern API usage, and common async/await pitfalls.

twostraws/Swift-Concurrency-Agent-Skill

Writes, reviews, and debugs idiomatic Rust code with memory safety and zero-cost abstractions.

farm-fe/farm

Home Assistant Android coroutine and threading guidance. An agent skill from home-assistant/android.

home-assistant/android

Covers handling Go's context.Context idiomatically in fp-go code: reading and scoping context through operators, timeouts, cancellation and converting ctx-first functions.

IBM/fp-go

Up-to-date Zig programming language patterns for version 0.15.x.

simoarpe/ziggity

Transcribe local audio or video with Volcengine Doubao file ASR, including BigASR 1.0 Turbo direct upload and asynchronous 1.0 standard, 1.0 idle, or 2.0 standard jobs through TOS.

ysyecust/lecture-to-notes

Polling assertions in Gomega — Eventually (poll until it passes) and Consistently (must keep passing), the func(g Gomega) callback idiom, WithTimeout/WithPolling/Within/ProbeEvery, WithContext and…

onsi/gomega

Swift Concurrency review and remediation for Swift 6.2+. An agent skill from Dimillian/Skills.

Dimillian/Skills

Run the GitHub issue/PR queue when the user invokes /issue-pr-loop or requests continuous queue work: maintain PRs, claim issues, implement in isolated worktrees, and ship until stopped.

thomhurst/EnumerableAsyncProcessor

Guides Stellar blockchain development in Swift using stellar-ios-mac-sdk.

Soneso/stellar-ios-mac-sdk

Comprehensive C and .NET development skill for TSP projects.

querylenshq/ef-querylens

Shows how to build composable, context-aware HTTP pipelines in Go using fp-go's ReaderIOResult monad instead of raw net/http calls.

IBM/fp-go

A skill your agent uses when tests have race conditions, timing dependencies, or inconsistent pass/fail behavior - replaces arbitrary timeouts with condition polling to wait for actual state…

sandgardenhq/sgai

Scaffolds FastAPI projects with a layered app layout, dependency injection through Depends, async handlers and database access, middleware and pytest setup.

wshobson/agents

Review browser userscript changes in JavaScript userscript files, focusing on scripting content and its HTML/CSS behavior, with metadata as a binding gate plus DOM/CSS, userscript-manager APIs…

cyfung1031/userscript-supports

Concurrency analysis for tractor's trio-based async primitives.

goodboy/tractor

Software Mansion's best practices for multithreading in React Native apps using react-native-worklets.

kingstinct/react-native-healthkit

Provide technical guidance for Android camera development with CameraX.

arindamxd/camerax-android

Kotlin Coroutines review and remediation for Android. An agent skill from Moustachauve/WLED-Android.

Moustachauve/WLED-Android

Expert guidance for implementing FHIR Bulk Data Access (Flat FHIR) following the HL7 specification.

aehrc/pathling

Diagnose data races, convert callback-based code to async/await, implement actor isolation patterns, resolve Sendable conformance issues, and guide Swift 6 migration.

supabitapp/supaterm

Builds robust Python MCP (Model Context Protocol) servers with FastMCP — tool design, error contracts, event-loop-safe blocking work, subprocess/CLI wrapping, single-file vs packaged distribution…

kajisho5/ffmpeg-skill

A skill your agent uses when C async/await patterns including Task, ValueTask, async streams, and cancellation.

sketch7/FluentlyHttpClient

Write modern, high-performance C code using records, pattern matching, value objects, async/await, Span<T/Memory<T, and best-practice API design patterns.

sketch7/FluentlyHttpClient

A skill your agent uses when implementing task cancelation, handling CancelationToken, propagating cancelation signals across thread/worker boundaries, and dealing with synchronous vs.

d-markey/squadron

Write, review, or fix Swift 6 concurrency code using actors, Sendable, structured concurrency, and the strict data-race-safety model.

nimblehq/ios-templates

Guidance for Akka.NET actor systems covering EventStream versus DistributedPubSub, supervision, Props versus DependencyResolver, work distribution and testable cluster code.

Aaronontheweb/dotnet-skills

Sets Rust conventions for the Windmill backend: error types, SQLx queries, JSON handling, async rules, module layout and rust-analyzer navigation.

windmill-labs/windmill

Testing patterns for Vert.x Redis Client: test frameworks, async testing, test locations, container setup, and how to run tests.

vert-x3/vertx-redis-client

Idiomatic Go concurrency - sync primitives, channel semantics, the select statement, and the standard channel patterns (cancellation/done-channel, fan-out/fan-in, pipeline, or-done, context…

inference-gateway/inference-gateway

Use before finalizing or opening/updating a PR for non-trivial code changes, especially third-party integrations, compatibility layers, hooks and filters, lifecycle code, providers, abstractions…

PopupMaker/Popup-Maker

Go coding best practices. An agent skill from Taoidle/plan-cascade.

Taoidle/plan-cascade

Covers ES6+ syntax and functional patterns for refactoring older JavaScript: async/await, destructuring, spread, modules, generators and data pipelines.

wshobson/agents

Design, review, and diagnose Choruz tests and fixtures that can fail nondeterministically under CI concurrency: parallel Playwright workers sharing one PostgreSQL and one API, vitest workers, cargo…

inclusionAI/Choruz

Collects a complete CockroachDB Operator escalation packet for TSC/TSE or operator-team handoff, including Helm state, Kubernetes resources, logs, operation-specific evidence, pprof goroutine dumps…

cockroachdb/helm-charts

Diagnoses and fixes flaky Playwright e2e tests by replacing race-prone patterns with retry-safe alternatives.

Comfy-Org/ComfyUI_frontend

Audits tests for concurrency safety — race conditions, shared mock state, cleanup ordering.

ash1794/vibe-engineering