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21519 Skills & MCP tools — copy a prompt, zero pre-install, into Claude Code / Codex / Cursor.
🎓 Skill = teach the AI how to do a task, copy & use; 🔌 MCP = connect the AI to an external tool/data source, usually needs a key.
Securely read and write local files, manage directories, and quickly search needed content.
Connect to SQLite databases, inspect table schemas, and safely read or write data.
Delegate coding tasks to background AI coding agents for implementation and changes.
Search, export, sync, and analyze archived Notion content and related repo data.
Search and analyze Slack archives, count threads, and support repo workflows.
Search places, fetch details, reviews, and structured JSON from Google Places.
Generate spectrograms and feature-panel visuals from audio for analysis and presentation.
Summarize CodexBar local cost logs by model for Codex or Claude.
Verify results before claiming work is complete, fixed, or passing.
Systematically investigate bugs, test failures, and unexpected behavior before fixing.
Verify revenue, pricing, refunds, and billing truth with evidence-backed answers.
Get PostgreSQL best practices for optimization, schema design, indexing, and security.
Learn Pythonic patterns, type hints, and best practices for maintainable code.
Optimize energy procurement, tariffs, PPAs, and multi-site energy cost strategies.
Post, search, read timelines, and analyze data via the X API.
Handle returns, refunds, fraud checks, and warranty claim decisions efficiently.
Plan demand forecasts, safety stock, and replenishment for multi-location retail inventory.
Build an automated agent to collect, enrich, and store public data.
Search official USPTO records and organize reproducible patent and trademark research.
Accelerate large-scale data pipelines, backfills, and syncs without sacrificing correctness.
Compare prediction-market baskets with research notes to find gaps and alignment.
Plan Data Atlas agents for Ito basket research and workflow design.
Choose regex first, then add LLMs for low-confidence parsing edge cases.
Research prediction market signals for products, dashboards, agents, and decision intelligence.
从访谈内容留存、转写回看，到主题归纳与产品建议，一套串起用户研究整理流程。
从流量采集、营销归因到数仓查询与看板输出，一套串起自动取数和分析闭环。
从读取设计稿、提取上下文到映射组件库与同步评审，这套组合很适合设计到前端落地的协作链路。
In-depth guides on Skill / MCP setup and security — beyond the directory listings
一位做了约 1.5 年 AI agent 的软件工程师发布了 Approv。它通过一次 API 调用，在代理执行高风险操作前暂停流程，让人类经由 WhatsApp 或 SMS 完成审批，同时生成可独立验证的签名审计轨迹。
如果你已经在 Codex 里写代码，但做方案草图、标注修图、生成演示页还得来回切工具，Cowart 正好补上这块。本文带你从安装到实战，把无限画布、图片生成、标注修改和 HTML 幻灯片串成一条工作流。
FixBugs 是一款面向生产环境故障排查的 agent，可结合上下文在沙箱中复现问题、定位根因、生成修复并完成验证。目前提供自托管 VSCode 扩展和 GitHub App 两种形态。