sql

io.mcp-cn.modelcontextprotocol/server-postgres

PostgreSQL的MCP服务器，支持PostgreSQL的读取和写入

MySQL

io.mcp-cn.benborla29/mcp-server-mysql

MySQL数据库的MCP服务器，支持数据库操作和管理

io.clawhub.ivangdavila/data-analysis

Data analysis and visualization. Query databases, generate reports, automate spreadsheets, and turn raw data into clear, actionable insights.

io.clawhub.gitgoodordietrying/sql-toolkit

Query, design, migrate, and optimize SQL databases. Use when working with SQLite, PostgreSQL, or MySQL — schema design, writing queries, creating migrations, indexing, backup/restore, and debugging slow queries. No ORMs required.

io.clawhub.jgarrison929/database-operations

Use when designing database schemas, writing migrations, optimizing SQL queries, fixing N+1 problems, creating indexes, setting up PostgreSQL, configuring EF Core, implementing caching, partitioning tables, or any database performance question.

io.clawhub.lucassynnott/supabase

Connect to Supabase for database operations, vector search, and storage. Use for storing data, running SQL queries, similarity search with pgvector, and managing tables. Triggers on requests involving databases, vector stores, embeddings, or Supabase specifically.

io.clawhub.lstpsche/todo-management

Per-workspace SQLite todo manager (./todo.db) with groups and task statuses (pending/in_progress/done/skipped), operated via {baseDir}/scripts/todo.sh for adding, listing, editing, moving, and removing entries and managing groups.

io.clawhub.ivangdavila/sqlite

Use SQLite correctly with proper concurrency, pragmas, and type handling.

io.clawhub.ziad-hsn/critical-code-reviewer

Conduct rigorous, adversarial code reviews with zero tolerance for mediocrity. Use when users ask to "critically review" my code or a PR, "critique my code", "find issues in my code", or "what's wrong with this code". Identifies security holes, lazy patterns, edge case failures, and bad practices across Python, R, JavaScript/TypeScript, SQL, and front-end code. Scrutinizes error handling, type safety, performance, accessibility, and code quality. Provides structured feedback with severity tiers (Blocking, Required, Suggestions) and specific, actionable recommendations.

io.clawhub.ivangdavila/mysql

Write correct MySQL queries avoiding common pitfalls with character sets, indexes, and locking.

io.clawhub.camelsprout/duckdb-cli-ai-skills

DuckDB CLI specialist for SQL analysis, data processing and file conversion. Use for SQL queries, CSV/Parquet/JSON analysis, database queries, or data conversion. Triggers on "duckdb", "sql", "query", "data analysis", "parquet", "convert data".

io.clawhub.sm0ls/taskflow

Structured project/task management for OpenClaw agents — markdown-first authoring, SQLite-backed querying, bidirectional sync, CLI, Apple Notes integration.

io.clawhub.ivangdavila/sql

Writes, reviews, and optimizes SQL queries; designs schemas, indexes, and constraints; plans migrations for any relational database. Use when a query is slow, EXPLAIN shows a sequential scan, or an index is ignored; when rows come back duplicated, missing, or with inflated totals after a JOIN; on deadlocks, lock timeouts, "too many connections", or transactions that never commit; when designing tables, keys, and column types, normalizing or denormalizing a model, or deciding between a JSON column and real columns; for ALTER TABLE on a live table, expand-migrate-contract rollouts, backups and restores, replication lag, connection pooling, partitioning, bulk CSV imports, and moving data between engines; for window functions, CTEs, keyset pagination, upserts, full-text search, multi-tenancy, row-level security, and timezone handling in MySQL, SQLite, MariaDB, or SQL Server. Not for PostgreSQL server internals such as vacuum tuning and work_mem sizing, and not for ORM schema modeling inside a framework.

io.clawhub.aniebyl/financial-analyst

Financial analysis and research workflows for market research, equity research, comparable companies, precedent transactions, and DCF valuation.

io.clawhub.kgnvsk/agent-memory-store

Shared semantic memory store for AI agents. Store, search, and retrieve memories across agents with TTL decay. SQLite persistence — survives restarts.

io.clawhub.mneves75/apple-mail-search

Fast Apple Mail search via SQLite on macOS. Search emails by subject, sender, date, attachments - results in ~50ms vs 8+ minutes with AppleScript. Use when asked to find, search, or list emails.

io.clawhub.mig6671/vector-memory-hack

Fast semantic search for AI agent memory files using TF-IDF and SQLite. Enables instant context retrieval from MEMORY.md or any markdown documentation. Use when the agent needs to (1) Find relevant context before starting a task, (2) Search through large memory files efficiently, (3) Retrieve specific rules or decisions without reading entire files, (4) Enable semantic similarity search instead of keyword matching. Lightweight alternative to heavy embedding models - zero external dependencies, <10ms search time.

io.clawhub.liuboacean/agent-comm-hub

本地多智能体通信 Hub（MCP stdio / HTTP-SSE），提供消息、任务编排、共享记忆、进化引擎，暴露 58 个 MCP 工具 + Web 管理面板

io.clawhub.julian1645/research-tracker

Manage and track autonomous AI research projects with state logging, instruction queues, agent coordination, and progress monitoring via SQLite.

io.clawhub.ivangdavila/analyst

Extract insights from data with SQL, visualization, and clear communication of findings.

io.clawhub.itzsubhadip/youtube-transcript-yt-dlp

Extract YouTube video transcripts from existing captions (manual or auto-generated) using yt-dlp, with optional timestamps and local SQLite caching.

io.clawhub.wpank/nodejs-patterns

WHAT: Production-ready Node.js backend patterns - Express/Fastify setup, layered architecture, middleware, error handling, validation, database integration, authentication, and caching. WHEN: User is building REST APIs, setting up Node.js servers, implementing authentication, integrating databases, adding validation/caching, or structuring backend applications. KEYWORDS: nodejs, node, express, fastify, typescript, api, rest, middleware, authentication, jwt, validation, zod, postgres, mongodb, redis, caching, rate limiting, error handling

io.clawhub.asleep123/wrangler

Manage Cloudflare Workers, KV, D1, R2, and secrets using the Wrangler CLI. Use when deploying workers, managing databases, storing objects, or configuring Cloudflare resources. Covers worker deployment, KV namespaces, D1 SQL databases, R2 object storage, secrets management, and tailing logs.

io.clawhub.youssefbm2008/moltsheet

Use the Moltsheet CLI to manage spreadsheet-style data for AI workflows: create sheets, inspect schemas, import rows, update cells, share sheets.

io.clawhub.bytesagain3/database-design

数据库设计助手。表设计、范式化、索引策略、迁移脚本、测试数据、ER图描述。Database designer with normalization, indexing, migration, seeding, ER diagrams. 数据库、MySQL。

io.clawhub.justinburdett/flyio-cli

Use the Fly.io flyctl CLI for deploying and operating apps on Fly.io. Default to read-only diagnostics (status/logs/config/releases). Only perform state-changing operations (deploys, SSH exec, secrets, scaling, machines, volumes, Postgres changes) with explicit user approval. Use when asked to deploy to Fly.io, debug fly deploy/build/runtime failures, set up GitHub Actions deploys/previews, or safely manage Fly apps and Postgres.

io.clawhub.maojiebc/guanyuan-majia

观远 BI（Guandata）实战增益层。标准查数、指标批量查询、本地分析、建卡发布、ETL、数据集和表单结构管理、工作流、指标写入路由官方六组件。专攻 ETL 整库治理、SmartETL 全链路重写、引擎报错、自定义图表与 HTML 看板排障、v7 发布兼容、移动端 phoneLayout、门店手机成绩单、SuperApp 的 LLM 中转及历史兼容、AI-native ADS 架构判断。餐饮会员公式见 majia-huiyuan。触发：观远、Guandata、会员、订单、复购率、RFM、ETL 治理、payload_json、自定义图表、HTML 看板、门店手机成绩单、换店滤空、phoneLayout、60004、SuperApp、ILLEGAL_JSON_RES、数据架构。

io.clawhub.chenyuan99/swelist

Helps you find tech internships and new-grad jobs, track every application locally, and prep for interviews — no sign-up needed

io.clawhub.lepetitpince/clawdo

Todo list and task management for AI agents. Add, track, and complete tasks with autonomy levels — agents propose work, humans approve. Works in heartbeats, cron, and conversations. Persistent SQLite CLI with structured JSON output.

io.clawhub.cnqso/calorie-counter

Track daily calorie and protein intake, set goals, and log weight. Use when user mentions food they ate, wants to know remaining calories, or needs to track weight. Stores data in SQLite with automatic daily totals.

io.clawhub.lucky-2968/todo-management-1-1-2

Per-workspace SQLite todo manager (./todo.db) with groups and task statuses (pending/in_progress/done/skipped), operated via {baseDir}/scripts/todo.sh for adding, listing, editing, moving, and removing entries and managing groups.

io.clawhub.dvjn/no-nonsense-tasks

No-nonsense task manager using SQLite. Track tasks with statuses (backlog, todo, in-progress, done), descriptions, and tags. Use when managing personal tasks, to-do items, project tracking, or any workflow that needs status-based task organization. Supports adding, listing, filtering, updating, moving, and deleting tasks.

io.clawhub.mars2003/flexible-database-design

Guide agents and users to design and implement a "flexible database" on SQLite that can handle semi-structured, multi-source data.

io.clawhub.rare/task-manager

SQLite-based task management with priority, tags, and stats. Database stored in skill directory for natural isolation.

io.clawhub.tristanmanchester/track17

Track parcels via the 17TRACK API (local SQLite DB, polling + optional webhook ingestion)

io.clawhub.dannydvm/engram

Persistent semantic memory layer for AI agents. Local-first storage (SQLite+LanceDB) with Ollama embeddings. Store and recall facts, decisions, preferences, events, relationships across sessions. Supports memory decay, deduplication, typed memories (5 types), memory relationships (7 graph relation types), agent/user scoping, semantic search, context-aware recall, auto-extraction from text (rules/LLM/hybrid), import/export, REST API, MCP protocol. Solves context window and compaction amnesia. Server at localhost:3400, dashboard at /dashboard. Install via npm (engram-memory), requires Ollama with nomic-embed-text model.

io.clawhub.napoleond/clawdirect-dev

Build agent-facing web experiences with ATXP-based authentication, following the ClawDirect pattern. Use this skill when building websites that AI agents interact with via MCP tools, implementing cookie-based agent auth, or creating agent skills for web apps. Provides templates using @longrun/turtle, Express, SQLite, and ATXP.