Exists
codeowners.exists
Requires a CODEOWNERS file to be present in the repository. Checks standard locations: root, .github/, or docs/.
Compatible Integrations
This guardrail works with the following integrations. Click to see how to use Exists with each collector.
Enable This Guardrail
Add the parent policy to your lunar-config.yml to enable this guardrail.
policies:
- uses: github://earthly/lunar-lib/policies/codeowners@v1.0.0
include: [exists]
# with: ...How This Guardrail Works
This guardrail is part of the CODEOWNERS Guardrails policy. It evaluates data collected by integrations and produces a pass/fail check with actionable feedback.
When enabled, this check runs automatically on every PR and in AI coding workflows, providing real-time enforcement of your engineering standards.
Learn How Lunar Works →Configuration Options
These inputs can be configured in your lunar-config.yml to customize
how the parent policy (and this guardrail) behaves.
| Input | Required | Default | Description |
|---|---|---|---|
min_owners_per_rule
|
Optional |
2
|
Minimum number of owners required per CODEOWNERS rule (for min-owners check) |
max_owners_per_rule
|
Optional |
10
|
Maximum number of owners allowed per CODEOWNERS rule (for max-owners check) |
CODEOWNERS Guardrails
This guardrail is part of the CODEOWNERS Guardrails policy, which includes 8 guardrails for repository and ownership.
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