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Data & backend

10,268 rows from 1,381 repositories

Where the data lives and what serves it.

What Data & backend skills agree on

233 skill files read, by 258 of the 277 authors on this shelf whose files we hold, 2026-09-06

The middle one of the 37 measured here is ~1.7k tokens long, counted with cl100k_base

Counted by distinct author, so one author publishing three of these counts once. Where a claim sits in fewer files than authors, that is said: a claim held by forty authors across three files is one file people copied, not forty people who agreed. Near-identical wordings are grouped and the other wordings are shown, so the grouping is yours to check.

What they tell the agent to do

  1. Centralize error handling in one handler38 of 258 in 20 filesalso worded as Handle errors through one centralized handler; Handle errors through a central handler
  2. Select only needed columns in queries36 of 258 in 18 filesalso worded as Select only needed database columns; Select only the columns a query needs
  3. Check cache before querying the database36 of 258 in 19 filesalso worded as Check the cache before querying the database
  4. Wrap multi-step writes in transactions36 of 258 in 18 filesalso worded as Wrap multi-step writes in a transaction; Run multi-step writes inside a transaction
  5. Retry failed requests with exponential backoff36 of 258 in 18 filesalso worded as Retry failed operations with exponential backoff; Retry transient failures with exponential backoff
  6. Batch fetch related records to avoid N+1 queries34 of 258 in 16 filesalso worded as Batch fetch to prevent N+1 queries; Batch fetches to prevent N+1 queries
  7. Use resource-based URLs for REST endpoints31 of 258 in 13 filesalso worded as Use resource-based REST URLs; Use resource-based REST endpoint URLs
  8. Separate business logic into a service layer29 of 258 in 17 filesalso worded as Put business logic in the Service layer; Put business logic in service objects
  9. Queue background jobs instead of blocking requests29 of 258 in 14 filesalso worded as Queue background work instead of blocking requests; Queue background jobs instead of blocking
  10. Abstract data access behind repository interfaces25 of 258 in 13 filesalso worded as Abstract data access behind a repository interface; Abstract data access behind a repository
  11. Log structured JSON with request context15 of 258 in 7 filesalso worded as Log structured events with request context; Log structured JSON with context
  12. Use a shared store for rate limiting14 of 258 in 6 filesalso worded as Rate limit through a shared store
  13. Validate input data14 of 258 in 8 filesalso worded as Validate all input data; Validate all inputs
  14. Verify JWT tokens on protected requests14 of 258 in 6 filesalso worded as Verify JWT tokens before granting access; Verify JWT tokens on protected routes
  15. Rate limit requests per client13 of 258 in 7 filesalso worded as Rate limit incoming requests; Rate limit incoming API requests

What they tell it not to do

  1. Do not select all columns in queries34 of 258 in 16 filesalso worded as Never select all columns with a wildcard; Don't select all columns with wildcard queries
  2. Do not fetch related records in a loop29 of 258 in 12 filesalso worded as Never fetch related records inside a loop; Do not query related records in a loop
  3. Do not use in-memory counters for production rate limiting13 of 258 in 5 filesalso worded as Do not use per-process in-memory rate limit counters in production; Never use per-process in-memory rate limit counters
  4. Do not use web searches9 of 258 in 3 filesalso worded as Don't use web search
  5. Do not use emojis9 of 258 in 3 filesalso worded as Don't use emojis in communication; Never use emojis in code, markup, or alt text
  6. Do not edit node_modules or dist files8 of 258 in 2 filesalso worded as Don't edit node_modules, .git, dist, or build
  7. Never query in a loop6 of 258 in 5 filesalso worded as Do not query per record inside loops; Do not query inside loops
  8. Never hardcode secrets in examples6 of 258also worded as Do not hardcode secrets; Hardcode secrets or credentials in source
  9. Never change production without approvals and rollback plans5 of 258 in 3 filesalso worded as Never change production without approvals and a rollback plan
  10. Don't use for small isolated backend changes or bug fixes5 of 258 in 3 filesalso worded as Do not use for small isolated changes or bug fixes; Don't use for small isolated backend changes

What they expect to be installed

  1. Redis58 of 258 in 38 files
  2. Zod52 of 258 in 33 files
  3. jsonwebtoken37 of 258 in 19 files
  4. Supabase34 of 258 in 17 files
  5. Next.js24 of 258 in 11 files
  6. grep18 of 258 in 12 files
  7. curl14 of 258 in 12 files
  8. Express13 of 258 in 7 files
  9. Read12 of 258 in 6 files
  10. npm11 of 258 in 5 files

What they ask it to produce

  1. API documentation16 of 258 in 8 filesalso worded as API documentation and user guides; API contract documentation
  2. Structured JSON log entries11 of 258 in 6 filesalso worded as structured logs; structured JSON logs with correlation IDs
  3. Endpoint tests9 of 258 in 3 filesalso worded as Tests for all endpoints
  4. Stored learning patterns9 of 258 in 3 filesalso worded as Stored learning pattern; Stored learning pattern records
  5. API endpoint code8 of 258 in 2 filesalso worded as API endpoint implementation
  6. Database migrations8 of 258 in 6 filesalso worded as migrations; Database migration files
  7. Swagger/OpenAPI documentation6 of 258 in 4 filesalso worded as OpenAPI or Swagger documentation; OpenAPI/Swagger documented endpoints
  8. Deployment runbook and rollback plan5 of 258 in 3 filesalso worded as Deployment and rollout plan

When Data & backend authors say to reach for one

The situations these authors wrote into their own files, counted out of the same 258 authors, with the skills that name each one

How Data & backend skills are built

8,911 skill directories by 1,145 authors, read from their repositories’ own file trees 2026-08-05

The middle bundle among those shipping files is 3 files, 19.9 KB beside SKILL.md

Counted by distinct author, same as above, so one author publishing forty template copies counts once. SKILL.md itself is not counted as a file, so a single-file skill is one where that file is the whole skill.

The shape

  1. SKILL.md is the whole skill404 of 1,145 authors, 4,559 of 8,911 skills
  2. files ship beside it741 of 1,145 authors, 4,352 of 8,911 skills
  3. executable scripts ship inside282 of 1,145 authors, 1,320 of 8,911 skills

The folders they converge on

  1. references/501 of 1,145 authors, 2,462 of 8,911 skills
  2. scripts/229 of 1,145 authors, 1,180 of 8,911 skills
  3. assets/98 of 1,145 authors, 366 of 8,911 skills
  4. agents/83 of 1,145 authors, 220 of 8,911 skills
  5. evals/70 of 1,145 authors, 181 of 8,911 skills
  6. examples/53 of 1,145 authors, 169 of 8,911 skills

  • Archify

    tt-a1i/archify/archify Skill

    10,485★ repo

    Agent skill for beautiful, verifiable architecture, workflow, sequence, data-flow, and lifecycle diagrams—self-contained HTML with motion and crisp export.

  • Google maps scraper

    gosom/google-maps-scraper/skills/google-maps-scraper Skill

    5,506★ repo

    scrape data from Google Maps. Extracts data such as the name, address, phone number, website URL, rating, reviews number, latitude and longitude, reviews,email and more for each place

  • DBHub

    bytebase/dbhub/io.github.bytebase/dbhub MCP server

    3,362★ repo

    Minimal, token-efficient Database MCP Server for PostgreSQL, MySQL, SQL Server, SQLite, MariaDB

  • Mongodb mcp server

    mongodb-js/mongodb-mcp-server/io.github.mongodb-js/mongodb-mcp-server MCP server

    1,099★ repo

    MongoDB Model Context Protocol Server

  • CRW Web Scraper

    us/crw/io.github.us/crw MCP server

    552★ repo

    Open-source web scraper for AI agents with scrape, crawl, and map tools

  • Mcp server trello

    delorenj/mcp-server-trello/io.github.delorenj/mcp-server-trello MCP server

    432★ repo

    MCP server for Trello boards with rate limiting, type safety, and comprehensive API integration.

  • Owasp security

    agamm/claude-code-owasp/.claude/skills/owasp-security Skill

    325★ repo

    Claude Code skill for OWASP security best practices (2025-2026). Includes Top 10:2025, ASVS 5.0, Agentic AI security, and 20+ language-specific security quirks.

  • Backend

    telagod/code-abyss/skills/_kernel/backend Skill

    238★ repo

    Give your AI coding agent a personality. Composable persona + style + skills for Claude Code, Codex, Gemini CLI & OpenClaw. Ships Tech Persona Card v1.0 spec.

  • Postgres mcp

    pgEdge/pgedge-postgres-mcp/io.github.pgEdge/postgres-mcp MCP server

    211★ repo

    Enterprise PostgreSQL MCP server with NL queries, hybrid search (pgvector+BM25), and web UI

  • Query writing

    Idun-Group/idun-agent-platform/examples/tutorials/text-to-sql-deep-agent/skills/query-writing Skill

    198★ repo

    🟪 Open-source runtime that ships any LangGraph or Google ADK agent as a production-ready FastAPI service. Bundled , AG-UI copilotkit API, chat UI, 15+ guardrails, MCP, OpenTelemetry, OIDC. One pip install. Self-hosted, no vendor lock-in.

  • WebReaper

    alex-on-ai/WebReaper/io.github.alex-on-ai/webreaper MCP server

    142★ repo

    AI-native web scraper: scrape, crawl and map any site to clean markdown over stdio. MIT-licensed.

  • mockd

    getmockd/mockd/io.mockd/mockd MCP server

    141★ repo

    Multi-protocol API mock server: HTTP, GraphQL, gRPC, WebSocket, MQTT, SSE, SOAP.

  • Add backend

    ahpxex/open-dashboard/.claude/skills/add-backend Skill

    119★ repo

    A skill catalogue of 36 copy-ready admin UI shapes an AI agent installs and composes into a real back-office. Built on TanStack Start, Drizzle + better-auth, shadcn + Tailwind v4.

  • Altimate code

    AltimateAI/data-engineering-skills/skills/altimate-code Skill

    118★ repo

    Skills related to Data Engineering Work for Claude Code

  • Dynoxide

    nubo-db/dynoxide/io.github.nubo-db/dynoxide MCP server

    83★ repo

    DynamoDB-compatible database engine in Rust on SQLite, with an MCP server for coding agents.

  • Web scraper

    yfe404/web-scraper Skill

    82★

    Intelligent web scraping Claude Code skill with automatic strategy selection and TypeScript-first Apify Actor development

  • Goframe v2

    gogf/skills/skills/goframe-v2 Skill

    no license78★ repo

    GoFrame Agent Skills empowering AI to deeply understand GoFrame conventions and best practices, generating high-quality, production-ready code.

  • Craft cloud

    michtio/craftcms-claude-skills/skills/craft-cloud Skill

    70★ repo

    Production-ready Claude Code skills, agents, and project templates for Craft CMS 5 development

  • Django ORM Lens

    FROWNINGdev/django-orm-lens/io.github.FROWNINGdev/django-orm-lens MCP server

    64★ repo

    Django ORM static-analysis MCP. 10 tools: models, relations, migrations, indexes, signals, N+1.

  • Kafka connector review

    lensesio/agentic-engineering-for-apache-kafka/skills/kafka-connector-review Skill

    56★ repo

    AI agent skills for building, operating and troubleshooting Apache Kafka applications. Topic audit, consumer lag, schema review, security, connectors and DLQ

  • Cosmosdb best practices

    AzureCosmosDB/cosmosdb-agent-kit/skills/cosmosdb-best-practices Skill

    50★ repo

    A collection of skills for AI coding agents working with Azure Cosmos DB. Skills are packaged instructions and scripts that extend agent capabilities.

  • Metabase ai assistant

    enessari/metabase-ai-assistant/io.github.enessari/metabase-ai-assistant MCP server

    48★ repo

    MCP Server for Metabase - 111 tools for SQL generation, dashboards & PostgreSQL

  • Microsoft Access Database

    unmateria/MCP-Access/io.github.unmateria/msaccess-database MCP server

    no license48★ repo

    Read and edit Microsoft Access databases (.accdb/.mdb) - forms, VBA, tables, queries. Windows.

  • Mcp

    prisma/mcp/io.prisma/mcp MCP server

    no license47★ repo

    MCP server for managing Prisma Postgres.

  • Api design

    proyecto26/system-design-skills/skills/api-design Skill

    46★ repo

    A divide-and-conquer wiki of system-design skills for Claude Code — reason about scalable systems, don't memorize architectures.

  • Crawl4ai skill

    brettdavies/crawl4ai-skill Skill

    no license42★

    Scrape JavaScript-heavy sites and extract structured data via reusable CSS schemas. Portable agent skill wrapping the Crawl4AI CLI and Python SDK.

  • Linkedin growth

    Linked-API/linkedin-skills/linkedin-growth Skill

    42★ repo

    LinkedIn automation skills for AI agents – sales, social selling, data extraction, and more.

  • Crawl apis

    ea-toolkit/architecture-catalog/.claude/skills/crawl-apis Skill

    38★ repo

    Git-native architecture catalog — Markdown registry, schema-driven UI, AI-ready

  • Mcp server

    thoughtspot/mcp-server/app.thoughtspot/mcp-server MCP server

    no license33★ repo

    MCP Server for ThoughtSpot - provides OAuth authentication and tools for querying data

  • Airflow mcp server

    abhishekbhakat/airflow-mcp-server/io.github.abhishekbhakat/airflow-mcp-server MCP server

    33★ repo

    An MCP server for Apache Airflow

  • Symfony api response

    aligundogdu/symfony-hexagonal-skill/skills/symfony-api-response Skill

    no license32★ repo

    Claude Code plugin that enforces hexagonal architecture (ports & adapters) in Symfony projects — with 10 auto-triggered skills, 2 review agents, and progressive refactoring support for existing codebases.

  • Dbmcp

    haymon-ai/dbmcp/ai.haymon/dbmcp MCP server

    30★ repo

    Database MCP server for MySQL, MariaDB, PostgreSQL & SQLite with PII redaction and write-prevention

  • Airflow and workflow orchestration

    vaquarkhan/data-engineering-agent-skills/skills/airflow-and-workflow-orchestration Skill

    29★ repo

    Production-grade Agent Skills for data engineering AI agents: 73 workflows, platform presets, safe backfill/replay, Kafka & Spark reliability, MCP observability, and VS Code/JetBrains installers.

  • Gnosis MCP

    nicholasglazer/gnosis-mcp/io.github.nicholasglazer/gnosis MCP server

    27★ repo

    Zero-config MCP server for searchable documentation. SQLite or PostgreSQL.

  • MCP Local WP

    verygoodplugins/mcp-local-wp/io.github.verygoodplugins/mcp-local-wp MCP server

    no license27★ repo

    WordPress database access via Local by Flywheel. Execute read-only MySQL queries and inspect schema.

  • Api designer

    AutumnsGrove/ClaudeSkills/api-designer Skill

    no license26★ repo

    Skills for Claude.ai and Claude Code

  • PostgreSQL performance Tuner MCP Server

    isdaniel/pgtuner_mcp/io.github.isdaniel/pgtuner_mcp MCP server

    25★ repo

    provides AI-powered PostgreSQL performance tuning capabilities.

  • Bitrix24 agent

    vrtalex/bitrix24-skill/skills/bitrix24-agent Skill

    24★ repo

    Bitrix24 AI Agent skill: webhook/OAuth, events, retries, safety guardrails, and ops patterns

  • Agami connect

    AgamiAI/agami-core/plugins/agami/skills/agami-connect Skill

    no license22★ repo

    The trust layer between AI and your data. Turns your database schema - messy joins, undocumented tables, into a governed semantic model so AI answers with correct SQL and a receipt on every answer. Run it locally, or self-host a shared team server with Docker.

  • Api breaker

    Orizon-eu/claude-code-pentest/api-breaker Skill

    22★ repo

    6 Claude Code skills that automate the entire pentest lifecycle. From recon to exploit chains to bug bounty reports — just give it a domain. 43 scripts, zero dependencies, pure Python.

  • CN Scraper MCP

    goesByhc/cn-scraper-mcp/io.github.goesByhc/cn-scraper-mcp MCP server

    22★ repo

    MCP server for AI agents to search major Chinese internet platforms with local-first login support.

  • Explore

    exmergo/dex/skills/explore Skill

    21★ repo

    Dex is the agent-native analytics engineering toolkit. Point it at your warehouse and your dbt project. It learns the landscape, authors your transformations, and tells you exactly what to fix when the schema drifts. Built for analytics engineers and data engineers who want more out of their coding agent.

  • Authentication failures

    scholarly360/owasp-top10-web-skills/skills/authentication-failures Skill

    20★ repo

    Agent Skills for OWASP Top 10 Application Security Risks (https://owasp.org/Top10/2025/)

  • Paymob integration

    PaymobAccept/Paymob-AI-Integration-Skill/skills/paymob-integration Skill

    19★ repo

    Official Paymob payment integration skill for Claude Code — Intention API, HMAC, mobile wallets, BNPLs, Apple Pay across Node.js, Python, PHP, Flutter and more

  • MCP Database Server

    Souhar-dya/mcp-db-server/io.github.Souhar-dya/mcp-db-server MCP server

    no license19★ repo

    MCP server for SQLite, PostgreSQL, and MySQL with natural language to SQL and direct SQL tooling.

  • Engram server

    jamjet-labs/jamjet/io.github.jamjet-labs/engram-server MCP server

    19★ repo

    Durable memory for AI agents: fact extraction, hybrid retrieval, temporal graph. SQLite/Postgres.

  • Mcp sqlite tools

    spences10/mcp-sqlite-tools/io.github.spences10/mcp-sqlite-tools MCP server

    19★ repo

    MCP server for local SQLite database operations

  • Data catchall

    Chipagosfinest/enterprise-team/enterprise-team/skills/data-catchall Skill

    no license18★ repo

    Hire a whole company with one plugin. 75 specialized AI agents across Engineering, Product, Infrastructure, Data, Security, Marketing, Sales, Finance, Legal, and People.

  • Powersync

    powersync-ja/agent-skills/skills/powersync Skill

    17★ repo

    Official agent skills for PowerSync

  • Seo crawler mcp

    houtini-ai/seo-crawler-mcp/io.github.houtini-ai/seo-crawler-mcp MCP server

    16★ repo

    Crawl and analyse websites for SEO errors using Crawlee with SQLite storage

  • Api security

    ShieldNet-360/secure-vibe/dist/agent-skills/.agents/skills/api-security Skill

    15★ repo

    SecureVibe — prevention-first security for AI-written code. Signed SKILL.md knowledge that makes AI coding assistants write secure code at generation time, plus a deterministic CI gate. Offline · keyless · Ed25519-signed. By ShieldNet360.

  • Taoguba crawler skill

    lisniuse/taoguba-crawler-skill Skill

    15★

    淘股吧帖子爬取skill，给 AI agent（AI智能体）使用。

  • Golang best practices skill

    saifoelloh/golang-best-practices-skill Skill

    15★

    Production-ready Go code review skill for AI agents based on authoritative sources

  • Stacker

    ogarciarevett/stacker/skills/stacker Skill

    15★ repo

    Agent skill: stack overlapping skills — run the best candidates in parallel, score outputs, merge the result

  • Appstore connect mcp

    ryaker/appstore-connect-mcp/io.github.ryaker/appstore-connect-mcp MCP server

    15★ repo

    MCP server for Apple Store Connect API integration with OAuth authentication support

  • Aurelius mapping

    tmssoftware/skills/skills/aurelius-mapping Skill

    no license14★ repo

    Official collection of agent skills from TMS Software

  • Server side swift

    melissa-pereira-deel/claude-code-server-side-swift-skills/skills/server-side-swift Skill

    13★ repo

    Production-ready Claude Code skills for server-side Swift (Vapor, Hummingbird) and Xcode Cloud CI/CD

  • Fastapi address review

    steph-dove/klaussy-agents/examples/fastapi/.agents/skills/fastapi-address-review Skill

    13★ repo

    A multi-agent context, rules, and hooks boilerplate generator. With a single command, it scaffolds conventions, namespaced skills, stack-appropriate settings, and interactive guardrails for seven major AI coding environments, matching each agent's native file formats and capability profiles.

  • Sota api design

    martinholovsky/SOTA-skills/skills/sota-api-design Skill

    12★ repo

    State-of-the-Art (2026) AI/LLM engineering skills/agents for building and auditing software — 40+ domain & language skills, BUILD/AUDIT modes, audit checklists.

  • Airflow

    G1Joshi/Agent-Skills/skills/ai-ml/airflow Skill

    12★ repo

    A comprehensive skill catalog for AI agents

All 10,268 in the catalog