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Sourcery

Instant AI-powered code reviews for faster, higher-quality development

Sourcery automatically reviews pull requests, delivering summaries, high-level feedback, and line-by-line suggestions, while also offering IDE assistance for tests, docs, and refactoring.

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Overview

Overview

Sourcery is an automated reviewer that hooks into any GitHub repository and evaluates each pull request. It generates a concise summary of the changes, high‑level quality feedback, and targeted line‑by‑line comments, mimicking the insight you’d expect from a teammate. The service is free for public projects and offers a 14‑day trial for private repos before a paid plan is required.

How it works

When a PR is opened, Sourcery sends the diff to trusted LLM providers (OpenAI, Anthropic) and returns AI‑driven suggestions. Code snippets are never stored longer than 30 days and are excluded from model training. In addition to PR reviews, the tool integrates with popular IDEs—VS Code, PyCharm, Sublime, Vim—providing real‑time assistance such as test generation, docstring creation, and readability optimizations. Teams can adopt Sourcery quickly by adding it to a repo, gaining immediate feedback that speeds up development velocity while maintaining high code quality.

Highlights

Automated PR reviews with summary, high‑level feedback, and line‑by‑line suggestions
IDE integrations for real‑time code assistance across multiple editors
Supports any GitHub repository; free for public projects
Privacy‑focused: code not stored beyond 30 days and not used for model training

Pros

  • Reduces review turnaround time
  • Improves code quality with AI‑generated suggestions
  • Free for public repositories
  • Works across several popular IDEs

Considerations

  • Relies on external LLM APIs, which may add latency
  • Private repo usage limited to trial unless a paid plan is purchased
  • AI suggestions often need human validation
  • Currently limited to GitHub pull requests

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Fit guide

Great for

  • Open‑source maintainers seeking faster PR feedback
  • Small teams wanting to augment code reviews without extra headcount
  • Developers who need instant IDE assistance for refactoring and testing
  • Projects aiming to improve code consistency across contributors

Not ideal when

  • Enterprises requiring on‑premise AI without external data transfer
  • Teams using non‑GitHub version control systems
  • Projects with strict zero‑data‑retention policies beyond 30 days
  • Workflows that cannot accommodate AI‑generated suggestions

How teams use it

Accelerate onboarding

New contributors receive immediate feedback on their first PRs, reducing mentorship load

Maintain code quality in fast‑moving repos

Automated reviews catch style and performance issues before merge, keeping the codebase clean

Add missing tests and docs

IDE assistant suggests unit tests and docstrings, increasing coverage without manual effort

Refactor legacy code

AI highlights readability improvements, helping teams modernize older modules safely

Tags

airefactoringcode-reviewspythonsoftware-developmentcode-review-botcode-quality

Frequently asked questions

How does Sourcery handle code privacy?

It sends only PR diffs to the LLM providers, does not store code longer than 30 days, and does not use it to train AI models.

Is Sourcery free?

Yes for public repositories. Private repos have a 14‑day free trial, after which a Team or Pro plan is required.

Which IDEs are supported?

Current integrations include PyCharm, VS Code, Sublime, and Vim, with more coming soon.

Does Sourcery work with non‑GitHub platforms?

At present it reviews pull requests on GitHub only.

Can I customize the review rules?

Sourcery provides AI‑generated feedback; custom rule configuration is not currently offered.

Project at a glance

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LicenseMIT
Repo age6 years old
Last commit13 hours ago

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