Skills

Progressive-disclosure instructions an agent loads on demand. Cheap until invoked, which is why the per-session figure on each card is usually two digits.

uml-mcp-diagrams

5473

antoinebou12/uml-mcp

Skill Claude CodeCodex

Creates diagrams via the uml-mcp MCP server (generateuml, generateumlimage, validateuml, listdiagramtypes, generateumlbatch) and returns shareable Kroki URLs or inline chat images. Use when the user wants diagrams, PlantUML/Mermaid/D2/UML, URLs, Kroki, goat/umlet, or diagramtype.

not rated 100 changed 10d ago A SkillSpector: warn 83 tokens original MIT

irrlicht-design

5474

ingo-eichhorst/Irrlicht

Skill Claude Code

Use this skill to generate well-branded interfaces and assets for Irrlicht, either for production or throwaway prototypes/mocks/etc. Contains essential design guidelines, colors, type, fonts, assets, and UI kit components for prototyping.

not rated 99 +1 changed 10d ago A SkillSpector: pass 51 tokens original MIT

litefuse/litefuse

Skill Claude CodeCodex

React and Next.js performance optimization guidelines from Vercel Engineering. This skill should be used when writing, reviewing, or refactoring React/Next.js code to ensure optimal performance patterns. Triggers on tasks involving React components, Next.js pages, data fetching, bundle optimization, or performance…

not rated 99 +2 today A 67 tokens

android-pentest

5476

hardw00t/ai-security-arsenal

Skill Claude CodeCodex

Comprehensive Android mobile application penetration testing with rooted-device ADB and Frida-based MCP tooling. Covers OWASP MASTG full methodology: recon, static + dynamic analysis, SSL/root bypass, IPC fuzzing, data exfiltration, crypto audit, and reporting. Triggers on requests to pentest Android apps, analyze…

not rated 100 +1 4mo ago A 87 tokens

term-radar

5477

sidkh/term-radar

Skill Claude CodeCodex

Use when the user describes in their own words a concept that matches an established term of art you can identify immediately and with high confidence.

not rated 100 +1 21d ago A 31 tokens

pai-guide

5478

kawayiYokami/P-ai

Skill Claude CodeCodex

A guide to the concepts and capabilities of the PAI assistant application.

not rated 100 today A 101 tokens GPL-3.0

d1v

5479

d1vai/d1v-cli

Skill Claude CodeCodex

Operate d1v.ai projects and container workspaces with the d1v CLI. Use when a task involves D1V authentication, project binding, workspace synchronization, container commands, environment metadata, preview deployments, deployment status, or a user-confirmed production release.

not rated 99 +26 11d ago A SkillSpector: pass 57 tokens original MIT

research-grants

5480

Drchronx/ai-agent-research-starter-kit

Skill Claude Code

Write competitive research proposals for NSF, NIH, DOE, and DARPA. Agency-specific formatting, review criteria, budget preparation, broader impacts, significance statements, innovation narratives, and compliance with submission requirements.

not rated 99 +9 3mo ago A 44 tokens

amenti-labs/vibecraft

Skill Claude Code

PRIMARY BUILDING METHOD - Use for ALL construction tasks. Build structures using declarative JSON schematics with 2D layer grids. Describe WHAT to build, the server handles HOW. Supports COMPACT FORMAT (70% fewer tokens) with run-length encoding. Use this instead of WorldEdit commands for reliable, predictable builds.

not rated 98 8mo ago A 70 tokens original MIT

knowledge-forge

5482

577206/knowledge-forge

Skill Claude CodeCodex

One-stop Knowledge Forge skill for local-first Obsidian ingestion plus optional NotebookLM automation. Use when users want to upload files into a Markdown/Obsidian vault, build a second-brain workflow, generate summaries/quizzes/flashcards/reports/PDF/audio via NotebookLM, or write reviewed digests back to a vault.

not rated 98 3mo ago A 71 tokens

example-svelte

5483

BintzGavin/helios

Skill Claude CodeCodex

Patterns for using Helios with Svelte. Use when building compositions in a Svelte environment, utilizing Svelte stores for reactive frame updates.

not rated 98 +1 7d ago A 32 tokens

khazix-writer

5484

liangjfblue/writer-dna

Skill Claude CodeCodex

A writing guide based on the Khaziks public-account article style and its approach to deciding what to write and how AI should help.

not rated 99 +2 5mo ago A 190 tokens

after-effects

5485

aedev-tools/adobe-agent-skills

Skill Claude Code

Automate Adobe After Effects via ExtendScript. Use when the user asks to create, modify, or query anything in an After Effects project — layers, keyframes, expressions, effects, compositions, assets, rendering, batch operations. Generates and executes JSX ExtendScript via osascript on macOS.

not rated 98 +2 6mo ago A Socket: passSnyk: pass 63 tokens original Apache-2.0

swissdevjobs

5486

Stupidoodle/swissdevjobs-cli

Skill Claude Code

Search nine job boards across eight countries — the salary-transparent devitjobs family, jobs.ch and jobup.ch (all Swiss industries), and MyCareersFuture (Singapore IT) — and help the user apply. Handles the native apply form, direct-email postings, and third-party ATS postings (driven with a browser MCP). Trigger…

not rated 99 +1 18d ago A SkillSpector: warn 112 tokens original MIT

Skill Development

5487

deancourse/git-worktree-demo

Skill Claude CodeCodex

This skill should be used when the user wants to "create a skill", "add a skill to plugin", "write a new skill", "improve skill description", "organize skill content", or needs guidance on skill structure, progressive disclosure, or skill development best practices for Claude Code plugins.

not rated 98 +2 6mo ago A 63 tokens

feature-sliced-design

5488

feature-sliced/skills

Skill Claude CodeCodex

Official Feature-Sliced Design (FSD) v2.1 skill for applying the methodology to frontend projects. Use when the task involves organizing project structure with FSD layers, deciding where code belongs, placing static assets (images, icons, fonts, PDFs), grouping closely related slices, defining public APIs and import…

not rated 98 +5 changed today A Socket: passSnyk: pass 192 tokens

job-description-skill

5489

yanliudesign/job-description-skill

Skill Claude CodeCodex

A job-description analysis tool that translates a job posting into the role's real requirements, your match, skill gaps, application trade-offs, likely interview questions, and next steps. It then creates an HTML report after you provide the posting and your résumé.

not rated 98 +1 1mo ago A 150 tokens

agent-workspace-linux

5490

agent-sh/agent-workspace-linux

Skill Claude CodeCodex

Use when a task needs an isolated hidden Linux desktop or workspace-owned browser: GUI app QA, web/browser/shopping automation, sandboxed app observation, or stale workspace cleanup. Routes agent-workspace-linux MCP tools on demand. Does NOT apply to host desktop/Chrome control, generic MCP setup, or pure code/file…

not rated 98 +3 yesterday B 70 tokens copy · 86% MIT

sql-semantic-check

5491

sqlsure/sqlsure

Skill Claude CodeCodex

Check SQL for silent semantic errors (fan-out double-counting, unsafe sums, wrong join keys, sensitive columns) BEFORE executing it against a database. Use whenever you are about to run a SELECT you or another model wrote — especially aggregates over joins. Deterministic, offline, 0.1 ms per check.

not rated 98 1mo ago A SkillSpector: pass 69 tokens original Apache-2.0

codex

5492

oil-oil/codex

Skill Claude CodeCodex

A tool that delegates coding, codebase exploration, implementation, review, and verification work to a persistent Codex CLI agent. It is intended for requests that explicitly ask Codex to act or continue an existing Codex task.

not rated 98 changed 5d ago A 58 tokens

context-degradation

5493

agent-skills-hub/agent-skills-hub

Skill Claude CodeCodex

Recognize patterns of context failure: lost-in-middle, poisoning, distraction, and clash.

not rated 99 +3 21d ago A SkillSpector: pass 21 tokens original MIT

megaplan

5494

peteromallet/Arnold

Skill Claude CodeCodex

AI agent harness for coordinating Claude and GPT to make and execute extremely robust plans.

not rated 98 8d ago A 20 tokens

cosai-oasis/secure-ai-tooling

Skill Claude CodeCodex

Audit framework mappings — an existing entity's mappings, the whole corpus, or a candidate value proposed for an entity not yet in the corpus — against the framework mappings style guide. Use when reviewing, auditing, or pre-PR authoring mapping changes for risks.yaml, controls.yaml, or personas.yaml.

not rated 97 changed 12d ago A SkillSpector: pass 65 tokens original Apache-2.0

appbun-web-desktop

5496

bigmacfive/appbun

Skill Codex needs its repo

Use when a user wants to turn a website, local web app, SaaS dashboard, internal tool, or existing frontend project into an inspectable Electrobun desktop app with appbun. Covers scaffolding, metadata, recipes, build diagnostics, native-runner packaging, and release readiness.

not rated 97 3mo ago A 64 tokens original MIT

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: