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docs/content/code-security/secret-scanning/copilot-secret-scanning/generating-regular-expressions-for-custom-patterns-with-copilot-secret-scanning.md
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Generating regular expressions for custom patterns with Copilot secret scanning Regular expression generator You can use {% data variables.secret-scanning.copilot-secret-scanning %}'s {% data variables.secret-scanning.custom-pattern-regular-expression-generator %} to write regular expressions for custom patterns. The generator uses an AI model to generate expressions that match your input, and optionally example strings. {% data reusables.permissions.security-repo-enable %} true
feature
secret-scanning-custom-pattern-ai-generated
how_to
Secret Protection
Secret scanning
AI
Copilot
/code-security/secret-scanning/generating-regular-expressions-for-custom-patterns-with-ai
/code-security/secret-scanning/using-advanced-secret-scanning-and-push-protection-features/custom-patterns/generating-regular-expressions-for-custom-patterns-with-ai
/code-security/secret-scanning/copilot-secret-scanning/generating-regular-expressions-for-custom-patterns-with-ai

Generating a regular expression for a repository with {% data variables.secret-scanning.copilot-secret-scanning %}

{% data reusables.secret-scanning.copilot-secret-scanning-expression-generator-subscription-note %}

{% data reusables.repositories.navigate-to-repo %} {% data reusables.repositories.sidebar-settings %} {% data reusables.repositories.navigate-to-code-security-and-analysis %}

  1. Under "{% data variables.product.prodname_secret_protection %}", under "Custom patterns", click New pattern. {% data reusables.advanced-security.secret-scanning-generate-regular-expression-custom-pattern %}
  2. When you're ready to test your new custom pattern, to identify matches in the repository without creating alerts, click Save and dry run. {% data reusables.advanced-security.secret-scanning-dry-run-results %} {% data reusables.advanced-security.secret-scanning-create-custom-pattern %}

{% data reusables.secret-scanning.link-to-push-protection %}

Generating a regular expression for an organization with {% data variables.secret-scanning.copilot-secret-scanning %}

{% data reusables.profile.access_org %} {% data reusables.profile.org_settings %} {% data reusables.security-configurations.display-global-settings %} {% data reusables.advanced-security.secret-scanning-new-custom-pattern-org %} {% data reusables.advanced-security.secret-scanning-generate-regular-expression-custom-pattern %}

  1. When you're ready to test your new custom pattern, to identify matches in selected repositories without creating alerts, click Save and dry run. {% data reusables.advanced-security.secret-scanning-dry-run-select-repos %} {% data reusables.advanced-security.secret-scanning-dry-run-results %} {% data reusables.advanced-security.secret-scanning-create-custom-pattern %}

{% data reusables.secret-scanning.link-to-push-protection %}

Further reading