Build and test

My main tool. I haven't hand-written code in two years.

Pricing: Included in Claude Pro ($20 a month, $17 billed annually), Max ($100 or $200 a month for 5x or 20x Pro's usage) and Team seats ($25 standard or $125 premium a month, $20 or $100 billed annually). Usage resets in five-hour windows, with weekly limits on top. Or pay API rates with a Console key or through Bedrock.

Code, notes and docs. Everything integrates with it first.

Pricing: Free: unlimited private repos and 2,000 Actions minutes a month. Team: $4 per user a month, with 3,000 minutes and protected branches on private repos. Secret push protection on private repos is an add-on (GitHub Secret Protection, $19 per active committer a month).

My default language. Best fit for the problem wins, but it's usually this.

Pricing: Free and open source.

For computer control, images, and as an end-to-end test orchestrator.

Pricing: Included in ChatGPT Plus ($20 a month), Pro (from $100), Business ($25 a user a month, $20 billed annually) and Enterprise. Five-hour and weekly limits apply, and image generation uses them 3–5x faster. Or pay API rates with an OpenAI key.

End-to-end and unit tests that agents can run and fix on their own.

Pricing: Free.

Tests for your tests. It mutates the code and checks your suite notices.

Pricing: Free.

I don't use it. Plain JavaScript and strong tests.

Pricing: Free and open source.

Instead: Plain JavaScript on Node.js, with strong tests.

Mediocre. Never recommended.

Pricing: GitLab Premium: $29 per user a month, billed annually (Free: 5 users per private group, 400 compute minutes). Bitbucket Cloud: Standard $3.65 and Premium $8 per user a month (Free: 5 users, 50 build minutes).

Instead: GitHub, where agents, CI and every integration land first.