Skills for Claude Code, Codex and Cursor

rust-skills leonardomso A Rust rulebook the agent reads before it writes: 265 rules in 26 categories. Useful when you review a module or fight the borrow checker. Claude Code CX Codex Cursor +1 6,400installs phoenix-tracing official [email protected] This skill guides OpenInference tracing for LLM apps with Phoenix. Use it to set up instrumentation, define custom spans, or prepare tracing for production. GitHub Copilot 1,000installs phoenix-evals official [email protected] Build and run evaluators for AI and LLM applications with Phoenix. Use it to investigate failures, evaluate RAG systems, and check model output. GitHub Copilot 1,000installs phoenix-cli official arize-ai A GitHub Copilot skill that drives the Phoenix CLI to pull traces, spans and sessions, then turns what it finds into a failure taxonomy for your LLM app. GitHub Copilot 1,000installs onboard-context-matic official github Interactive tour of the context-matic MCP server. It detects project languages, catalogs supported APIs, and demonstrates live model and endpoint lookups. GitHub Copilot 1,000installs game-object-components phaserjs Reference guide for Phaser 4 game object components and mixins. Helps coding agents handle Transform, Depth, and WebGL effects accurately. Claude Code CX Codex Cursor +1 796installs autonomous-agents sickn33 A skill about building autonomous agents that stay reliable: ReAct and plan-execute loops, goal decomposition, reflection, and the math of compounding step failures. Claude Code CX Codex Cursor +1 1,200installs code-refactoring-refactor-clean sickn33 Analyzes code smells and plans stepwise refactoring based on SOLID and clean code principles. Helps clean tangled modules before introducing new features. Claude Code CX Codex Cursor +1 1,200installs blockchain-developer sickn33 This skill guides smart contract, Web3 application, and decentralized-system work. Use it for design, reviews, and transaction checks before any on-chain action. Claude Code CX Codex Cursor +1 1,200installs production-code-audit sickn33 Skill for systematic code review covering security flaws, logic errors and performance issues before deployment. Identifies specific problems, proposes fixes and validates them. Claude Code CX Codex Cursor +1 1,200installs ai-prompt-research every-app This skill discovers questions people ask ChatGPT about your niche, shows how the model answers them, and reveals which sites it cites. Learn where your brand appears in AI responses and where competitors show up instead. Claude Code CX Codex Cursor +1 837installs groups-and-containers phaserjs A Phaser 4 skill covering Group, Container and Layer, object pooling and nested transforms, so you stop guessing how to organise sprites. Claude Code CX Codex Cursor +1 790installs huggingface-papers huggingface Pulls the paper ID out of a Hugging Face or arXiv link, reads the page as markdown, and fetches authors, models and datasets from the papers API. Claude Code CX Codex Cursor +1 2,200installs huggingface-llm-trainer huggingface Runs language and vision model fine-tuning on Hugging Face Jobs with TRL or Unsloth and converts checkpoints to GGUF without local GPUs. Claude Code CX Codex Cursor +1 2,200installs dart-generate-test-mocks dart-lang A Dart testing skill: the agent injects external services through constructors, generates mock classes with mockito and build_runner, then writes the unit test. Claude Code CX Codex Cursor +1 18,200installs pptx-visual-assets kimtth Places approved icons, images, SVGs, and diagrams onto editable PPTX decks with precise bounding boxes and verified rights. Claude Code CX Codex Cursor 2,600installs pptx-slide-specification kimtth A skill for writing and repairing coordinate-explicit JSON specs of slides, so an editable PPTX deck builds the same way every time. Claude Code CX Codex Cursor 2,600installs vision-sft Seth Hobson This skill configures supervised fine-tuning for vision-language models on image and text data. Use it when adapting a VLM to a new visual domain. Claude Code CX Codex Cursor 2,600installs quantized-export Seth Hobson Exports promoted checkpoints and LoRA adapters as FP8, AWQ, GGUF, or merged safetensors. Use it before deploying a model. Claude Code CX Codex Cursor 2,600installs preference-optimization Seth Hobson Selects and tunes model alignment methods: DPO, ORPO, KTO, or SimPO. Use it when training on preference pairs or binary thumbs-up feedback. Claude Code CX Codex Cursor 2,600installs lora-qlora-recipes Seth Hobson This skill configures LoRA and QLoRA supervised fine-tuning, from target modules to rank and learning rate. Use it when reviewing an adapter training setup. Claude Code CX Codex Cursor 2,600installs grpo-rlvr-training Seth Hobson Configures GRPO and RLVR training pipelines for tasks with verifiable outcomes. Useful when evaluating models with code execution, unit tests, or strict schemas. Claude Code CX Codex Cursor 2,600installs finetuning-method-selection Seth Hobson This skill decides whether fine-tuning is needed and routes the task to a method based on its data and goal. Use it before a training run. Claude Code CX Codex Cursor 2,600installs eval-harness-first Seth Hobson Builds the evaluation harness before fine-tuning with goldens, graders, judge calibration, and a base-model baseline. Useful for tracking regressions. Claude Code CX Codex Cursor 2,600installs dataset-curation Seth Hobson This skill formats and checks datasets for model fine-tuning. Use it to prepare data for SFT or preference training before a run. Claude Code CX Codex Cursor 2,600installs checkpoint-promotion Seth Hobson Gates a trained checkpoint before release by checking data quality, capability drift, forgetting, and paired results against the base model. Claude Code CX Codex Cursor 2,600installs hermes-tweet Xquik Connects X/Twitter research and gated posting tools to Hermes Agent workflows. Claude Code CX Codex Cursor 2,600installs weekly-review cursor This skill pulls your commits from the past 7–10 days, groups them by work type, and produces a brief report for status updates and retrospectives. Requires a configured git with email set. Claude Code CX Codex Cursor +1 2,400installs control-ui cursor Inspects and tests local web, IDE, or Electron interfaces via browser automation and CDP. Captures screenshots, traces, and verifies UI changes without extra dependencies. Claude Code CX Codex Cursor +1 2,400installs fix-ci cursor This skill finds failed PR checks, examines logs, and guides small fixes. Use it when branch or pull request CI is failing. Claude Code CX Codex Cursor +1 2,400installs control-cli cursor Builds a local harness to drive, test, and profile interactive CLI or TUI tools. Catches UI regressions, memory leaks, and hangs without third-party services. Claude Code CX Codex Cursor +1 2,400installs cron-schedule ruvnet Schedules background worker runs via CronCreate during an active session. Useful for recurring security audits, test gap reviews, and codebase mapping. Claude Code CX Codex Cursor +1 902installs time-and-timers phaserjs Guides AI agents on configuring Clock, TimerEvent delays, loops, and Timelines in Phaser 4. Useful when scripting game loops. Claude Code CX Codex Cursor +1 786installs react-email vercel-labs Turns JSON email specs into HTML or plain-text output with React Email. Use it for email catalogs, generated specs, and transactional message templates. Claude Code CX Codex Cursor +1 1,400installs vue vercel-labs A skill to convert JSON specifications into Vue 3 components with data binding, visibility conditions, and action handling. Use it if you generate interfaces via AI or build UIs from JSON. Claude Code CX Codex Cursor +1 1,400installs iot-firmware ruvnet Orchestrates firmware rollouts across fleets using canary deployments and anomaly gates. Helpful when shipping updates to connected hardware without risking outages. Claude Code CX Codex Cursor +1 900installs nitro Anthony Fu A skill with Nitro v3 references: file-based routing, route rules, caching, storage and deployment presets. Use it when the agent edits nitro.config or writes H3 handlers. Claude Code CX Codex Cursor +1 2,600installs write-pr tldraw Sets PR title and description standards: semantic types, structured templates, and reviewer-focused writing rules. Claude Code CX Codex Cursor +1 419installs dart-build-cli-app dart-lang Skill for building command-line applications in Dart. Provides architectural patterns, entrypoint structure, exit codes, stream routing, and subprocess spawning. Claude Code CX Codex Cursor +1 18,000installs dart-migrate-to-checks-package dart-lang Migrates Dart test suites from legacy package:matcher to package:checks. Useful when modernizing test assertions for static type safety and detailed diagnostics. Claude Code CX Codex Cursor +1 18,000installs