Write, refactor, and ship code with an agent that knows your stack.
Most artifacts in the catalog live here: tools that read a codebase, follow its conventions, and make changes you would not be embarrassed to review. Expect language-specific helpers, refactoring workflows, spec-driven development harnesses, and framework-aware assistants for stacks like React, Next.js, Python, Rust, and Go. If you want your agent to stop writing generic code that ignores how your project actually works, start here.
Ranked by GitHub stars. Search to find fast, or page through the full list.
MCP server for HTTP — structured request/response data with headers and status for AI agents
MCP server for Bazel — structured build and test output for AI agents
Julian project tools — deploy, manage, and interact with Julian instances
MCP server for CMake — structured configure and build output for AI agents
MCP server for Docker — structured container, image, and compose data for AI agents
Vibes is for people who use Claude Code, but don't know how to code.
Setup CLI and health check for Pare MCP servers — auto-detect clients, install servers, verify connections
MCP server for Python — structured pip, mypy, ruff, and pytest output for AI agents
A strict code reviewer, pair programmer, debugger, and mentor for Python, Bash, Google Apps Script, and JavaScript — a security-first, phase-aware engineering discipline with an enforced spec → plan → TDD → verify workflow.
MCP server for Make/Just — structured task listing and execution output for AI agents
Upload and host files anonymously using decentralized storage with Originless and IPFS.
Log all file changes (write, edit, delete) to a SQLite database for debugging and audit. Use when: (1) Tracking code changes, (2) Debugging issues, (3) Auditing file modifications, or (4) The user asks to track file changes.
Embedded debugger workflow for probe-rs targets. Provides a CLI-first skill and optional MCP server for probe discovery, target checks, flashing, memory access, and RTT workflows.
Star all repositories from a GitHub user automatically. Use when: (1) Supporting open source creators, (2) Bulk discovery of useful projects, or (3) Automating GitHub engagement.
Check cryptocurrency wallet balances across multiple blockchains using free public APIs.
Check if growth loop requirements are actually implemented in the codebase. Use when the user says "validate", "check status", "skene status", "is it done", or "verify implementation".
Encrypt and decrypt files or streams using age — a simple, modern, and secure encryption tool with small explicit keys, passphrase support, SSH key support, post-quantum hybrid keys, and UNIX-style composability. No config options, no footguns.
Scrape websites at scale using Scrapy, a Python web crawling and scraping framework. Use when: (1) Crawling multiple pages or entire sites, (2) Extracting structured data from HTML/XML, or (3) Building automated data pipelines from web sources.
Generate prioritized growth loops with implementation roadmaps based on codebase analysis. Use when the user says "plan", "growth loops", "prioritize", "what should I build", or "roadmap".
Translate text using free LibreTranslate API. Use when: (1) Translating content between languages, (2) Creating multilingual documentation, (3) Processing international data, or (4) Building translation workflows.
Fetch current and historical crypto prices and compute ATH or ATL over common time windows.
Find duplicate records in 30 seconds. Zero-config entity resolution, 97.2% F1 out of the box.
Analyzes CSV files and automatically generates comprehensive summaries with statistical insights, data quality checks, and visualizations using Python and pandas. No questions asked — just upload a CSV and get a full analysis immediately.
Geocode addresses and get map data using free OpenStreetMap Nominatim API. Use when: (1) Converting addresses to coordinates, (2) Reverse geocoding coordinates to addresses, (3) Location-based features, or (4) Validating addresses.
Projects, tasks, and task dependencies for tracking work
Create interactive, custom data visualizations using d3.js — including charts, graphs, network diagrams, and geographic maps. Use when you need fine-grained control over visual elements, transitions, or interactions beyond what standard charting libraries offer, in any JavaScript environment (vanilla JS, React, Vue, Svelte, etc.).
Get current weather, forecasts, and historical data using free Open-Meteo and wttr.in APIs. Use when: (1) Fetching weather conditions, (2) Weather alerts and monitoring, (3) Forecast data for planning, or (4) Climate analysis.
Run comprehensive PLG analysis on a codebase to detect tech stack, existing growth features, and revenue opportunities. Use when the user says "analyze", "scan", "audit codebase", or "find growth opportunities".
Generate QR codes locally without external APIs using native CLI and runtime libraries in Bash and Node.js.
Log all chat messages to a SQLite database for searchable history and audit. Use when: (1) Building chat history, (2) Auditing conversations, (3) Searching past messages, or (4) User asks to log chats.
Generate context-aware implementation prompts for a selected growth loop. Use when the user says "build", "implement", "generate code", "create prompt", or "how do I build this".
Generate candlestick price charts for any asset from existing OHLC data, without handling data fetching.
Automatically creates user-facing changelogs from git commits by analyzing commit history, categorizing changes, and transforming technical commits into clear, customer-friendly release notes. Turns hours of manual changelog writing into minutes of automated generation.
Products, prices, subscriptions, invoices, and payments with optional Stripe integration.
Aggregate and deduplicate recent news from multiple sources into concise topic summaries.
Publish operational logs over Nostr with public events and private admin messages for sensitive logs.
Knowledge base articles organized into hierarchical categories with slug-based URLs and view tracking.
Check an IP address across multiple public geolocation and reputation sources and return a best-matched location summary.
Calculate line-of-sight and road distances between two cities using free OpenStreetMap services.
Multi-tenant organizations, users, teams, memberships, roles, and permissions with RLS
Transform data between JSON, CSV, and other formats with filtering, mapping, and flattening. Use when: (1) Converting API responses to CSV, (2) Processing data pipelines, (3) Extracting specific fields, or (4) Flattening nested structures.
Research and create modern, animated tourism websites for cities with historical facts, places to visit, and colorful designs.
Connected apps, OAuth tokens, webhooks, and sync logs
Multi-step approval chains with requests, decisions, and temporary delegations.
Sales and recruiting pipelines with stages, deals, and stage transition history
Notification templates, deliveries, preferences, and push tokens with RLS
Set up analytics and tracking infrastructure for growth loops. Use when the user says "deploy telemetry", "set up analytics", "tracking", "events", "push to supabase", or "skene push".
Folders, documents, and polymorphic threaded comments for wikis, notes, and knowledge bases.