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Tembo reviews pull requests automatically, checking for bugs, security issues, and style guide compliance, then leaving inline comments on specific lines.

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How it works

1

PR opened

A pull request is opened or updated in your repository. Tembo picks it up via webhook.
2

Code analyzed

The agent reads the diff, understands the context of the changes, and evaluates them against your coding standards.
3

Review posted

Inline comments are added to specific lines in the PR. If no issues are found, the PR can be auto-approved.

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Set up automated PR reviews

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1. Connect your source control

Navigate to the Integrations page and connect GitHub, GitLab, or Bitbucket.

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2. Create an automation

Go to Automations in your dashboard and use the PR Review template, or create one from scratch. Trigger: PR opened / PR updated (webhook from GitHub, GitLab, or Bitbucket) Example instructions: 
Review this PR for:
- Bugs and logic errors
- Security vulnerabilities
- Performance issues
- Style guide compliance

Leave inline comments on specific lines.
Auto-approve if no issues found.
Browse all templates →

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3. Customize with rule files

Add rule files to your repo so the reviewer knows your team’s conventions: naming patterns, test requirements, forbidden patterns, and more.

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What gets checked (depends on your instructions)

CategoryExamples
CorrectnessLogic errors, off-by-one bugs, null handling
SecuritySQL injection, XSS, hardcoded secrets
PerformanceN+1 queries, unnecessary allocations, missing indexes
StyleNaming conventions, formatting, import order
TestingMissing tests, untested edge cases

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Best practices

  • Add rule files: The more context the reviewer has about your standards, the better the review.
  • Start with one repo: Test the review quality on a single repo before rolling out to all.
  • Combine with human review: Use automated reviews to catch the obvious stuff so human reviewers can focus on architecture and design.