# Evergreen

> Evergreen CI infrastructure, configuration validation. Use when modifying .evergreen/ config, preparing to submit changes or understanding the Evergreen test matrix.

- Skill: `mongodb/evergreen` (Agent Skill)
- Install (CLI): `npx skillmds@latest add mongodb/evergreen`
- Raw SKILL.md: https://api.skillmd.com/api/skills/mongodb/evergreen/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: mongodb (https://skillmd.com/u/mongodb)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/mongodb/evergreen

---

# Evergreen

## Evergreen (MongoDB Internal CI)

Primary CI runs on MongoDB’s Evergreen system.
Configuration lives in `.evergreen/`.

- Do not modify `.evergreen/` configuration without review
- Evergreen runs the full test matrix across MongoDB versions, OS platforms, and JDK versions

## Validating Evergreen Configuration

After modifying `.evergreen/` files, validate the config locally:

```bash
evergreen validate .evergreen/.evg.yml
```

Always run this before submitting changes to `.evergreen/` to catch syntax errors and invalid task definitions.

## Testing with a Patch Build

To test your changes on Evergreen before merging, create a patch build:

```bash
evergreen patch -u
```

This uploads your uncommitted and committed local changes as a patch build on Evergreen, allowing you to run the full CI
test matrix against your branch.