# Claude Code by use case

> Hand-picked selections from the technical library: the agents, skills and connectors worth using for each task, from code review to databases.

- Source: https://doutorai.pt/en/for
- Site: Doutor AI (https://doutorai.pt/en) - AI tools for small businesses

The technical library has thousands of components, and that is exactly the problem: when you need to solve a specific task, you do not want a list of everything, you want to know what is worth installing.

Each page below is a hand-picked selection. We chose a handful of agents, skills, commands and connectors that actually do the job and explain why each one made the list. If a use case does not have components of high enough quality, we do not create the page.

## Choose a use case

- [Agents and skills for code review](https://doutorai.pt/en/for/code-review): Review diffs, catch bugs before the merge and reduce technical debt. (21 components) - markdown version: https://doutorai.pt/en/for/code-review.md
- [Agents, skills and commands for automated testing](https://doutorai.pt/en/for/automated-testing): Components to write, run and evaluate tests with Claude Code. (21 components) - markdown version: https://doutorai.pt/en/for/automated-testing.md
- [Agents and skills for code security and auditing](https://doutorai.pt/en/for/security-audit): Audit code, find vulnerabilities and stop secrets before the commit. (21 components) - markdown version: https://doutorai.pt/en/for/security-audit.md
- [Databases with Claude Code: schema, queries and migrations](https://doutorai.pt/en/for/databases): MCP connectors, agents and skills for schema, SQL queries, migrations and performance. (20 components) - markdown version: https://doutorai.pt/en/for/databases.md
- [Agents and skills for technical documentation](https://doutorai.pt/en/for/technical-documentation): READMEs, API docs, ADRs, diagrams and changelogs that do not go stale (21 components) - markdown version: https://doutorai.pt/en/for/technical-documentation.md
- [Agents and skills for frontend and interfaces](https://doutorai.pt/en/for/frontend-and-ui): React, Vue, Angular, design systems, accessibility and performance in the browser. (21 components) - markdown version: https://doutorai.pt/en/for/frontend-and-ui.md
- [Agents and skills for DevOps, CI/CD and infrastructure](https://doutorai.pt/en/for/devops-and-deployment): Components to package, ship and keep software running in production. (22 components) - markdown version: https://doutorai.pt/en/for/devops-and-deployment.md
- [Agents and skills for debugging and error diagnosis](https://doutorai.pt/en/for/debugging): Find the root cause: stack traces, logs, incidents and memory leaks. (21 components) - markdown version: https://doutorai.pt/en/for/debugging.md

## How we choose what goes on each page

We start from the full library and filter by hand: we keep the ones that actually solve the task, not the ones that share a keyword. When two components do the same thing, the better documented one stays. Each pick has a line explaining when it makes sense, written from the component's own description. We do not mass-generate pages by combining tags: if there is no real inventory for a use case, the page does not exist.

## Frequently asked questions

### Do these pages replace the full library?

No. They are a starting point for each task. The library still has every component at /en/claude-code, with search and category filters, and each pick on these pages links to the full component page.

### How do you choose what goes on each page?

We start from the full library and filter by hand: we keep the ones that actually solve the task, not the ones that share a keyword. When two components do the same thing, the better documented one stays, and each pick comes with a line explaining when it makes sense.

### How often do the selections change?

The descriptions and counts come from the library in real time, so they always match what is published. The selection itself is reviewed by hand when better components for the task appear.

### Do I need an account to use these components?

No. Exploring the library and viewing the component pages is free. A free account lets you use the assistant; saving favorites is part of the Pro plan.

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Content by Doutor AI (https://doutorai.pt/en). When quoting, please cite the source: https://doutorai.pt/en/for