Languages skills

9,399 tagged Languages, measured the same way as everything else here.

Browse within: agents 134LLM 130skills 121ai-coding 119agentic-ai 100agent 93claude-code-skills 89antigravity 86dotnet 76azure 74cli 73javascript 71openai 69sdk 67

internet-development/www-sacred

Skill Claude CodeCodex

Keep www-sacred's TypeScript fast to type-check and fast to run. Use when touching the ASCII/canvas animation components (the only real per-frame code here), tightening type-check wall-clock, or auditing a change for runtime or compiler regressions. Scoped to this repo — a React 19 / Next.js 16 component library plus…

not rated 1.6k +1 13d ago A SkillSpector: warn 84 tokens original MIT

paper2code

50

PrathamLearnsToCode/paper2code

Skill Claude CodeCodex

Converts an arxiv paper into a minimal, citation-anchored Python implementation. Trigger when user runs /paper2code with an arxiv URL or paper ID, says "implement this paper", or pastes an arxiv link asking for implementation. Flags all ambiguities honestly. Never invents implementation details not stated in the paper.

not rated 1.5k +2 6mo ago A Socket: warnSnyk: warnSkillSpector: pass 72 tokens original MIT

fantasy-net

51

qq362946/Fantasy

Skill Claude CodeCodex

This guide applies to development and code review for Fantasy / Fantasy.Net / Fantasy.Unity written in C#. Use it when a task involves Fantasy server code or Unity client code using Fantasy, ECS entities/components/systems, scenes and subscenes, FTask, network handlers/messages/protocols, Address or Roaming routing…

not rated 1.5k +9 2d ago A SkillSpector: pass 157 tokens

atsign-foundation/at_client_sdk

Skill Claude Code

Use this skill when a developer is building a Dart or Flutter app that depends on atclient or atclientflutter from pub.dev, stores or shares data via the Atsign Protocol, needs onboarding (CRAM new-atsign, atKeys file, keychain, APKAM) or APKAM enrollment, asks how to open, own, stop or switch an AtClient or read its…

not rated 1.4k changed 6d ago A SkillSpector: warn 267 tokens original BSD-3-Clause

cq

53

mozilla-ai/cq

Skill Claude CodeCodex

INVOKE WHEN: Starting any task — query first (cq catches blind spots your training data missed: stale versions, integration gotchas, undocumented quirks) You just resolved a non-obvious error, confusing error message, or surprising tool behavior — present a draft KU to the user and call propose if they approve…

not rated 1.3k +2 today A 128 tokens copy · 100% Apache-2.0

swift-mlx-lm

54

kellyvv/PhoneClaw

Skill Claude CodeCodex

MLX Swift LM - Run LLMs and VLMs on Apple Silicon using MLX. Covers local inference, streaming, wired memory coordination, tool calling, LoRA fine-tuning, embeddings, and model porting.

not rated 1.3k +9 2mo ago A SkillSpector: pass 52 tokens original Apache-2.0

starknet-js

55

starknet-io/starknet.js

Skill Claude CodeCodex

Use when writing or debugging JavaScript/TypeScript that interacts with Starknet through the starknet.js SDK — building Call objects or calldata, encoding/decoding Cairo types (felt252, u256, structs, arrays, spans, ByteArray, Option/Result/custom enums), or working with contracts, accounts, providers, transactions…

not rated 1.3k +1 changed 1mo ago A SkillSpector: warn 79 tokens original MIT

matlab/matlab-agentic-toolkit

Skill Claude CodeCodex

Use when writing MATLAB functions with arguments blocks — repeating arguments (arguments (Repeating)), .?ClassName property import in constructors, name-value forwarding with namedargs2cell, or migrating from inputParser or validateattributes. Also when reviewing signatures for implicit-conversion pitfalls (size…

not rated 1.2k +22 changed 12d ago A 199 tokens

swiftui-backports

57

shaps80/SwiftUIBackports

Skill Claude CodeCodex

Find SwiftUIBackports replacements for SwiftUI APIs unavailable on a project deployment target. Use for Swift/SwiftUI compiler availability errors, old iOS/tvOS/watchOS/macOS targets, or when implementing SwiftUI app features that may benefit from SwiftUIBackports.

not rated 1.1k 4mo ago A SkillSpector: pass 60 tokens original MIT

Kotlin/kotlin-agent-skills

Skill Claude CodeCodex

Migrates Kotlin Multiplatform (KMP) projects to Android Gradle Plugin 9.0+. Handles plugin replacement (com.android.kotlin.multiplatform.library), module splitting, DSL migration, and the new default project structure. Use when upgrading AGP, when build fails due to KMP+AGP incompatibility, or when the user mentions…

not rated 1.1k +13 today A Socket: passSnyk: passSkillSpector: pass 105 tokens original Apache-2.0

ufy2024/AuC

Skill Claude CodeCodex

Guidance for packaging Python programs for Windows as optimized installers using Nuitka and Inno Setup.

not rated 1.1k 2mo ago A SkillSpector: warn 108 tokens original MIT

aws/aws-graviton-getting-started

Skill Claude CodeCodex

Validates .NET application compatibility with AWS Graviton (ARM64) architecture by checking, by content, that every resolved NuGet package (including transitive) ships an aarch64 native file for each target runtime identifier and the target's C library, glibc, libstdc++ and page size, and by checking committed native…

not rated 1.1k +1 changed 4d ago A 211 tokens

ue-specifiers

62

fjz13/UnrealSpecifiers

Skill Codex

Use when writing, editing, reviewing, validating, or explaining Unreal Engine C++ reflected declarations: UCLASS, USTRUCT, UENUM, UINTERFACE, UPROPERTY, UFUNCTION, UPARAM, UMETA, meta=(...), Blueprint exposure, Details Panel, replication/RPC, SaveGame, Config, Instanced objects, UMG binding, type pickers, UHT…

not rated 1.1k +1 4mo ago A 0 tokens

jolt

63

a16z/jolt

Skill Claude Code

Wrap a Rust function in a Jolt zero-knowledge proof.

not rated 1.1k +2 changed yesterday A SkillSpector: pass 15 tokens original Apache-2.0

plainx-release

64

dropseed/plain

Skill Claude Code

Releases plainx packages with version suggestions, changelog generation, and git tagging. Use when releasing a package to PyPI.

not rated 1.0k today A SkillSpector: pass 30 tokens

code-standards

65

Tencent-Hunyuan/UniRL

Skill Claude Code

A development workflow and coding-standard skill for Python, PyTorch, deep-learning code, shell scripts, and configuration files. It requires understanding the project, proposing a plan for approval, writing tests, simplifying code, and reviewing the result.

not rated 1.0k +6 yesterday A SkillSpector: pass 238 tokens

write-swift

66

wangmiaozero/pi-harness

Skill Claude CodeCodex

How to write modern Swift well — modeling with value types, Swift 6 data-race safety and approachable concurrency (@concurrent, main-actor-by-default, actors, task groups), protocols and generics (some vs any), API design, performance and ARC, Swift Testing, macros, and the modern language features agents don't know…

not rated 997 +762 today A 107 tokens AGPL-3.0

new-silvermoon/awesome-android-agent-skills

Skill Claude CodeCodex

Convert Android XML layouts to Jetpack Compose. Use when asked to migrate Views to Compose, convert XML to Composables, or modernize UI from View system to Compose.

not rated 984 +7 2mo ago A Socket: passSnyk: passSkillSpector: warn 41 tokens original Apache-2.0

graal

68

oracle/skills

Skill Claude CodeCodex ✓ vendor

Build, configure, and troubleshoot GraalVM Native Image applications. Use this skill for native-image CLI builds, Maven or Gradle Native Build Tools, reachability metadata, and build or run time issue diagnosis.

not rated 897 +14 11d ago A SkillSpector: pass 45 tokens UPL-1.0

crate-structure

69

xberg-io/html-to-markdown

Skill Claude CodeCodex

Map of the html-to-markdown workspace — the seven crates/ (core, cli, ffi, py, node, php, wasm) with the unsafecode forbid/override rule, the out-of-workspace language packages under packages/, and the primary convert() API with its ConversionResult shape, feature flags, and dual parser. Load when navigating…

not rated 882 +1 changed 6d ago A SkillSpector: pass 91 tokens original MIT

pure-di

70

DevTeam/Pure.DI

Skill Claude CodeCodex

Implement or fix dependency injection with Pure.DI in a .NET project, including bindings, roots, lifetimes, tags, factories, scopes, and Pure.DI generator diagnostics. Use when the project references Pure.DI or the user asks to add it.

not rated 847 yesterday A 55 tokens original MIT

NVIDIA/TileGym

Skill Claude CodeCodex ✓ vendor

Use this skill to convert, port, or translate Triton-TileIR or cuTile-Python GPU kernels to cutile-rs (Rust). The orchestrator runs scripts/preflight.sh, then drives a bounded Agent A -> B -> D -> E pipeline (Agent C is diagnostic, Agent F optional), delegating all kernel/host/correctness/perf work to sub-agents and…

not rated 827 +1 yesterday A SkillSpector: warn 103 tokens

wax

72

christopherkarani/Wax

Skill Codex

Swift client guidance for Wax's public Memory, PhotoMemory, and VideoMemory APIs. Use only when writing or changing Swift app code that imports Wax. Do not use at session start. Do not use for MCP remember/recall/stats — those follow the live MCP server instructions. Do not use for waxmcp install or doctor (that is…

not rated 805 changed 1mo ago A SkillSpector: pass 76 tokens original Apache-2.0

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: