13 free prompts, updated October 2026

AI prompts for coding and developers

Prompts for code review, debugging, tests, refactoring, API design, security audits, SQL, Docker and CI pipelines, plus specs for AI coding agents. Works with ChatGPT, Claude and Gemini.

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  • Open directly in ChatGPT or Claude
Showing 13 promptsTip: replace the [highlighted] parts with your details
Coding and DevTrending

Senior code reviewer

Works with: ChatGPT, Claude, Gemini

Act as a senior [language / framework] engineer doing a code review. Review the code below for:

1. Bugs and edge cases
2. Security issues (injection, auth, secrets, OWASP Top 10)
3. Performance problems
4. Readability and naming
5. Missing tests

For each issue give: severity (critical / major / minor), the line or snippet, why it matters and a corrected version. Do not rewrite the whole file unless necessary.

[paste code]
ChatGPTClaude
Coding and Dev

Debug this error step by step

Works with: ChatGPT, Claude, Gemini

I am getting this error:
[paste error and stack trace]

Context:
- Language / framework and version: [details]
- What I expected: [expected]
- What happened: [actual]
- Relevant code: [paste code]

Explain the root cause in plain English, list the most likely causes in order of probability, give the fix, and tell me how to verify it and prevent it in future.
ChatGPTClaude
Coding and DevTrending

Build an app spec for an AI coding agent

Works with: Claude Code, Cursor, Codex

I want to build [app description] using [tech stack].

Before writing any code, produce a build spec I can give to an AI coding agent:
1. User stories with acceptance criteria
2. Data model (tables, fields, relations)
3. API endpoints with request and response shapes
4. Folder structure
5. Step-by-step implementation plan in small, testable tasks
6. Test plan and edge cases
7. Environment variables and third-party services needed

Ask me clarifying questions first if anything is ambiguous.
ChatGPTClaude
Coding and Dev

Write unit tests for this function

Works with: ChatGPT, Claude, Gemini

Write thorough unit tests for the code below using [testing framework, for example Jest, PyTest, PHPUnit].

Cover: the happy path, edge cases, invalid input, boundary values, and error handling. Mock external dependencies. Use descriptive test names and arrange-act-assert structure. After the tests, list any behaviour that looks like a bug.

[paste code]
ChatGPTClaude
Coding and Dev

SQL query builder and optimizer

Works with: ChatGPT, Claude, Gemini

Here is my database schema:
[paste schema]

Write a [PostgreSQL / MySQL] query that [describe what you need]. Explain the query line by line, suggest indexes to make it fast on [number] rows, and show an alternative approach if one exists. Warn me about any performance pitfalls.
ChatGPTClaude
Coding and Dev

Refactor legacy code safely

Works with: ChatGPT, Claude, Gemini

Refactor the code below to improve readability and maintainability without changing behaviour.

- Explain the main code smells first
- Refactor in small, safe steps and show each step
- Keep public function signatures the same
- Add or suggest tests that prove behaviour did not change

Language: [language]
[paste code]
ChatGPTClaude
Coding and DevTrending

Explain an unfamiliar codebase

Works with: Claude Code, Cursor, ChatGPT

I just joined a project. Here is the folder structure and key files:
[paste tree and files]

Explain: what the app does, the architecture and data flow, the main modules and how they connect, where to start reading, how a request travels through the system, and 5 risky or confusing areas I should be careful with.
ChatGPTClaude
Coding and Dev

REST API design review

Works with: ChatGPT, Claude

Review this API design for [app]. Check: resource naming, HTTP methods and status codes, pagination, filtering, versioning, error format, authentication, rate limiting and idempotency. List problems by severity and propose an improved OpenAPI-style spec.

[paste endpoints or spec]
ChatGPTClaude
Coding and Dev

Regex generator with tests

Works with: ChatGPT, Claude, Gemini

Write a regular expression in [language] that matches [describe pattern]. It must NOT match: [counter-examples]. Explain each part of the regex, then give 10 test strings showing which match and which do not, and note any edge cases.
ChatGPTClaude
Coding and Dev

Convert code between languages

Works with: ChatGPT, Claude, Gemini

Convert this [source language] code to idiomatic [target language]. Use the target language's standard libraries and conventions rather than a line-by-line translation. Point out any behaviour differences (types, error handling, concurrency) and include a small test.

[paste code]
ChatGPTClaude
Coding and DevTrending

Security audit of a web app

Works with: ChatGPT, Claude

Act as an application security engineer. Review this [framework] code for vulnerabilities: injection, XSS, CSRF, broken authentication, insecure direct object references, secrets in code, unsafe file uploads, and missing rate limits.

For each finding give: severity, exploit scenario in one sentence, and the fixed code.

[paste code]
ChatGPTClaude
Coding and Dev

Git commit messages and PR description

Works with: ChatGPT, Claude, Copilot

Here is my git diff:
[paste diff]

Write a conventional commit message (type, scope, short summary under 72 characters, body explaining why), then a pull request description with: summary, changes, how to test, screenshots placeholder, and risks.
ChatGPTClaude
Coding and Dev

Dockerfile and CI pipeline generator

Works with: ChatGPT, Claude, Gemini

Create a production-ready Dockerfile for a [framework / language] app using a multi-stage build, a non-root user, small base image and proper caching. Then write a GitHub Actions workflow that runs lint, tests, builds the image and deploys to [platform] on push to main. Explain each step briefly.
ChatGPTClaude

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FAQ

Coding and Dev prompts: FAQ

Which AI is best for coding?

Claude, ChatGPT and Gemini are all strong. Agentic tools such as Claude Code, Cursor and Codex work best when you give them a clear spec, the relevant files and tests to run.

Is it safe to paste my code into AI tools?

Avoid pasting secrets, credentials or proprietary code into consumer tools. Use business plans with data controls or self-hosted options for sensitive code.

Are these prompts free to use?

Yes. Every prompt in the Softsols AI prompt library is free to copy, edit and use for personal or commercial work.

How do I customise a prompt?

Replace everything in [square brackets] with your own details. The more specific your context, audience and desired format, the better the result.

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