# Tools

> Every listed resource, editors’ picks first. The filters below can be combined.

- Search: append `?q=<keywords>` to the URL. Separate several keywords with spaces; all of them must match. Matches name, repository, tags, professions, description and README.
- Filter by type: append `?type=<cli|skill|plugin|mcp>` to the URL.
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Resources for QA or ML / AI or Data analysis, Tagged `backend`: 9 items.

> - QA: Functional testing, test automation and quality assurance.
> - ML / AI: Model training, evaluation and LLM application development.
> - Data analysis: Querying, statistical analysis, reporting and visualization.

- [MCP Builder](https://hebbmind.com/skill/mcp-builder.md): [Skill] Guides agents in building quality MCP servers: research the protocol and target API, design tools, implement with Python (FastMCP) or the TypeScript SDK, and write evaluation questions to test the result. Official Anthropic skill.
- [uv](https://hebbmind.com/cli/uv.md): [CLI] Astral's extremely fast Python package and project manager written in Rust, replacing pip, pipx, poetry, pyenv and more. Supports lockfiles and multiple Python versions, and uvx runs Python tools without installing them.
- [MCP Server Dev](https://hebbmind.com/plugin/mcp-server-dev.md): [Plugin] Designs and builds MCP servers: first picks a deployment model among remote HTTP, MCPB bundles and local stdio, then guides tool design, auth and in-chat interactive components. Maintained by Anthropic.
- [gRPCurl](https://hebbmind.com/cli/grpcurl.md): [CLI] curl for gRPC: call any gRPC method with JSON, including bidirectional streaming, browse service definitions via server reflection, proto source files or protosets, with TLS and mutual TLS support.
- [.NET Agent Skills](https://hebbmind.com/skill/dotnet-skills.md): [Skill] The .NET team's official skill collection, grouped into plugins: ASP.NET Core, Blazor, MAUI, EF Core data access, MSBuild troubleshooting, performance diagnostics, testing, and framework upgrades and migrations. Maintained by Microsoft; install via the Claude Code or Codex plugin marketplace.
- [Cloudflare Agents SDK](https://hebbmind.com/skill/agents-sdk.md): [Skill] Teaches agents to build, debug and review stateful AI agents with the Cloudflare Agents SDK: state sync, scheduled tasks, RPC, MCP servers, email and streaming chat, checking the latest official docs first. Maintained by Cloudflare.
- [Microsoft Agent Skills](https://hebbmind.com/skill/microsoft-skills.md): [Skill] Microsoft's official skill collection: 170+ skills focused on Azure SDKs (Python, .NET, TypeScript, Java, Rust) and Microsoft Foundry development, plus plugins, custom agents and MCP configs. Microsoft recommends picking skills per project rather than installing them all.
- [Postman MCP Server](https://hebbmind.com/mcp/postman-mcp-server.md): [MCP] Postman's official MCP server: lets agents manage workspaces, collections, environments and API specs, help with API testing and generate client code from API definitions. The remote version uses OAuth; the local version needs a Postman API key.
- [Postman Plugin for Claude Code](https://hebbmind.com/plugin/postman-claude-code-plugin.md): [Plugin] Postman's official plugin: sets up the Postman MCP server so Claude Code can sync collections, run API tests and diagnose failures, generate client code, create mocks and docs, and run OWASP API security checks. Needs a Postman account.