Explore Skills

Notion API for creating and managing pages, databases, and blocks.

Hook Development

72.7k

anthropics

This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement prompt-based hooks", "use ${CLAUDE_PLUGIN_ROOT}", "set up event-driven automation", "block dangerous commands", or mentions hook events (PreToolUse, PostToolUse, Stop, SubagentStop, SessionStart, SessionEnd, UserPromptSubmit, PreCompact, Notification). Provides comprehensive guidance for creating and implementing Claude Code plugin hooks with focus on advanced prompt-based hooks API.

async-python-patterns

29.9k

wshobson

Master Python asyncio, concurrent programming, and async/await patterns for high-performance applications. Use when building async APIs, concurrent systems, or I/O-bound applications requiring non-blocking operations.

solidity-security

29.9k

wshobson

Master smart contract security best practices to prevent common vulnerabilities and implement secure Solidity patterns. Use when writing smart contracts, auditing existing contracts, or implementing security measures for blockchain applications.

web3-testing

29.9k

wshobson

Test smart contracts comprehensively using Hardhat and Foundry with unit tests, integration tests, and mainnet forking. Use when testing Solidity contracts, setting up blockchain test suites, or validating DeFi protocols.

skill-developer

22.5k

langfuse

Create and manage Claude Code skills following Anthropic best practices. Use when creating new skills, modifying skill-rules.json, understanding trigger patterns, working with hooks, debugging skill activation, or implementing progressive disclosure. Covers skill structure, YAML frontmatter, trigger types (keywords, intent patterns, file paths, content patterns), enforcement levels (block, suggest, warn), hook mechanisms (UserPromptSubmit, PreToolUse), session tracking, and the 500-line rule.

slack-bot-builder

21.9k

Build Slack apps using the Bolt framework across Python, JavaScript, and Java. Covers Block Kit for rich UIs, interactive components, slash commands, event handling, OAuth installation flows, and Workflow Builder integration. Focus on best practices for production-ready Slack apps. Use when: slack bot, slack app, bolt framework, block kit, slash command.

file-uploads

21.8k

Expert at handling file uploads and cloud storage. Covers S3, Cloudflare R2, presigned URLs, multipart uploads, and image optimization. Knows how to handle large files without blocking. Use when: file upload, S3, R2, presigned URL, multipart.

daily-meeting-update

21.8k

Interactive daily standup/meeting update generator. Use when user says 'daily', 'standup', 'scrum update', 'status update', 'what did I do yesterday', 'prepare for meeting', 'morning update', or 'team sync'. Pulls activity from GitHub, Jira, and Claude Code session history. Conducts 4-question interview (yesterday, today, blockers, discussion topics) and generates formatted Markdown update.

blockrun

21.8k

Use when user needs capabilities Claude lacks (image generation, real-time X/Twitter data) or explicitly requests external models ("blockrun", "use grok", "use gpt", "dall-e", "deepseek")

Build production-ready Web3 applications, smart contracts, and decentralized systems. Implements DeFi protocols, NFT platforms, DAOs, and enterprise blockchain integrations. Use PROACTIVELY for smart contracts, Web3 apps, DeFi protocols, or blockchain infrastructure.

seo-snippet-hunter

18.0k

sickn33

Formats content to be eligible for featured snippets and SERP features. Creates snippet-optimized content blocks based on best practices. Use PROACTIVELY for question-based content.

beads

17.9k

steveyegge

Git-backed issue tracker for multi-session work with dependencies and persistent memory across conversation compaction. Use when work spans sessions, has blockers, or needs context recovery after compaction.

proxychains

13.2k

2025Emma

Auto-detect network issues and force proxy usage with proxychains4. Use this skill when encountering connection timeouts, DNS failures, or blocked network access. Default proxy is http://127.0.0.1:9910

close-management

8.4k

anthropics

Manage the month-end close process with task sequencing, dependencies, and status tracking. Use when planning the close calendar, tracking close progress, identifying blockers, or sequencing close activities by day.

baoyu-format-markdown

6.1k

JimLiu

Formats plain text or markdown files with frontmatter, titles, summaries, headings, bold, lists, and code blocks. Use when user asks to "format markdown", "beautify article", "add formatting", or improve article layout. Outputs to {filename}-formatted.md.

baoyu Markdown to HTML

6.1k

JimLiu

Converts Markdown into styled HTML with WeChat-compatible themes. Supports syntax highlighting for code blocks, math rendering (KaTeX/MathJax), PlantUML diagrams, footnotes, alert/warning/info blocks, and infographic elements. Use this when a user asks for 'markdown to html', 'convert md to html', 'md to html', or needs polished, styled HTML output from Markdown.

reddit-fetch

3.9k

ykdojo

Fetch content from Reddit using Gemini CLI when WebFetch is blocked. Use when accessing Reddit URLs, researching topics on Reddit, or when Reddit returns 403/blocked errors.

fuzzing-obstacles

Techniques for patching code to overcome fuzzing obstacles. Use when checksums, global state, or other barriers block fuzzer progress.

spec-to-code-compliance

Verifies code implements exactly what documentation specifies for blockchain audits. Use when comparing code against whitepapers, finding gaps between specs and implementation, or performing compliance checks for protocol implementations.

cosmos-vulnerability-scanner

Scans Cosmos SDK blockchains for 9 consensus-critical vulnerabilities including non-determinism, incorrect signers, ABCI panics, and rounding errors. Use when auditing Cosmos chains or CosmWasm contracts.

coverage-analysis

Coverage analysis measures code exercised during fuzzing. Use when assessing harness effectiveness or identifying fuzzing blockers.

1k-feature-guides

2.3k

OneKeyHQ

Feature development guides for OneKey. Use when adding new chains, socket events, notifications, pages, or routes. Covers blockchain integration, WebSocket subscriptions, push notifications, and navigation patterns.

solidity-security

2.0k

scaffold-eth

sui-knowledge

Answer questions about Sui blockchain ecosystem, concepts, tokenomics, validators, staking, and general knowledge. Use when users ask "what is Sui", "how does Sui work", "Sui vs other chains", or any Sui-related questions that aren't specifically about Move programming.

jb-query

Query Juicebox V5 project state from the blockchain. Read project configurations, rulesets, terminal balances, token holder data, and splits using cast or ethers.js. Supports mainnet and testnets.

ercdata

Store, verify, and manage AI data on the Ethereum blockchain (Base network) using the ERCData standard. Use when an agent needs to store data fingerprints on-chain, verify data integrity, create audit trails, manage access control for private data, or interact with the ERCData smart contract. Supports public and private storage, EIP-712 verification, snapshots, and batch operations.

near-email

Send and read blockchain-native emails using NEAR Email service. Use when building notifications for NEAR smart contracts (NFT sales, DeFi liquidation alerts, DAO voting reminders) or when AI agents need email capabilities with a NEAR account identity.

lost-bitcoin

Search and analyze lost bitcoins - find old inactive wallets, analyze dormant addresses, track ancient coins and research forgotten wealth on the Bitcoin blockchain.

task-tracker

Personal task management with daily standups and weekly reviews. Use when: (1) User says 'daily standup' or asks what's on their plate, (2) User says 'weekly review' or asks about last week's progress, (3) User wants to add/update/complete tasks, (4) User asks about blockers or deadlines, (5) User shares meeting notes and wants tasks extracted, (6) User asks 'what's due this week' or similar.

bluesky

Complete Bluesky CLI: post, reply, like, repost, follow, block, mute, search, threads, images. Everything you need to engage on Bluesky from the terminal.

logseq

Provide commands for interacting with a local Logseq instance through its Plugin API. Use for creating pages, inserting blocks, querying the graph database, managing tasks, retrieving content, or automating workflows in Logseq. Only works with a locally running instance with the API enabled; default port or set path expected for [$API accessible skill].

beautiful-mermaid

Render beautiful Mermaid diagrams as SVGs or ASCII art. Use when user sends Mermaid code blocks (\`\`\`mermaid ... \`\`\`) and wants to visualize them. Supports: Flowcharts, State, Sequence, Class, ER diagrams. Features: Ultra-fast (100+ diagrams <500ms), zero DOM dependencies, 15 built-in themes, Shiki theme compatibility. Perfect for: Telegram messages, terminal output, web interfaces, CLI tools.

moltysmind

Collective AI knowledge layer with blockchain-verified voting. Query, contribute, and vote on shared knowledge.

solana-skill

Interact with Solana blockchain via Helius APIs. Create/manage wallets, check balances (SOL + tokens), send transactions, swap tokens via Jupiter, and monitor addresses. Use for any Solana blockchain operation, crypto wallet management, token transfers, DeFi swaps, or portfolio tracking.

onchat

Read and send on-chain messages via OnChat on Base L2. Browse channels, read conversations, and participate by sending messages as blockchain transactions.

1inch

1inch DEX aggregator. Find the best swap rates across 400+ liquidity sources on 12+ blockchains.

purch-api

AI-powered shopping API for product search and crypto checkout. Use this skill when: - Searching for products from Amazon and Shopify - Building shopping assistants or product recommendation features - Creating purchase orders with crypto (USDC on Solana or Base) - Integrating e-commerce checkout into applications - Signing and submitting blockchain transactions for purchases

ethereum

Interact with Ethereum blockchain - check ETH and ERC-20 balances, view transactions, gas prices, and ENS lookups. Works with MetaMask addresses.

sponge-wallet

Manages crypto wallets, transfers tokens, swaps on DEXes, checks balances, and accesses paid APIs (search, image gen, prediction markets, web scraping, document parsing, sales prospecting) via x402 micropayments. Use when the user asks about wallet balances, token transfers, swaps, blockchain payments, or paid API services.

warren-deploy

Deploy websites and files permanently on MegaETH blockchain. AI agents stress test the network by deploying HTML on-chain using SSTORE2 bytecode storage. Agents pay their own gas.

doing-tasks

Use when executing any task. Work through plans systematically, tracking progress, handling blockers, and coordinating with other skills. The central execution skill.

leo-wallet

Interact with Aleo blockchain - check balances, view transactions, and explore the privacy-focused network. Works with Leo Wallet addresses.

cors-gen

Generate CORS configuration for your stack. Use when cross-origin requests are blocked.

aluvia-brave-search

Web search and content extraction via Brave Search API, with unblockable access using Aluvia mobile proxy. Use for searching documentation, facts, or any web content. No browser required; bypasses blocks and CAPTCHAs.

little-snitch

Control Little Snitch firewall on macOS. View logs, manage profiles and rule groups, monitor network traffic. Use when the user wants to check firewall activity, enable/disable profiles or blocklists, or troubleshoot network connections.