Jetpack AI: add the SEO feature option and point its surfaces at it

[ariskataoka]

Proposed changes

• Add jetpack_ai_seo_enabled (feature key ai_seo, default on) as the listed AI SEO feature control — registered, synced, and under the site-wide AI switch (module), with Jetpack_AI_Settings::is_ai_seo_enabled() applying the host and master gates as well after the filter chain.
• Update the toggle/option used by the WordPress Agent capabilities "AI SEO" row: replace ai_seo_enhancer_enabled with jetpack_ai_seo_enabled.
• Update the option gating the AI sidebar's. Should follow jetpack_ai_seo_enabled, leaving ai_seo_enhancer_enabled unchanged (governs only automatic generation).

Screenshots

The "AI SEO" row bound to the new option, captured live on a Jurassic Ninja site (1440×900):

Default (on)	Toggled off

Related product discussion/links

Does this pull request change what data or activity we track or use?

No.

Testing instructions

• On a Jetpack-connected test site running this branch, with the ai module active:
• wp option get jetpack_ai_seo_enabled reports 1 with no stored row (registered default).
• Open the AI settings page (wp-admin/admin.php?page=jetpack-ai, WordPress Agent view): the SEO row shows one "AI SEO" row bound to the new option. Toggle it off and back on; the saved value round-trips.
• With the option off and seo-tools active, Jetpack_AI_Sidebar::add_agents_manager_data() reports seoSuggestions: false while proofreadContent stays true; with the option at its default, suggestions survive wp option update ai_seo_enhancer_enabled 0.
• wp jetpack module deactivate ai: the hub rows grey out at their saved values, and Jetpack_AI_Settings::is_ai_seo_enabled() reads false while the stored option is preserved.
• PHP: jp docker phpunit jetpack -- --filter='Jetpack_AI_Settings_Test|WPCOM_REST_API_V2_Endpoint_AI_Feature_Settings_Test|Jetpack_AI_Sidebar_Test'. JS: pnpm run test-gui --testPathPatterns='ai' in projects/plugins/jetpack.
• Editor enforcement (the panel honoring the option) lands in the follow-up PR stacked on this one.

🤖 AI Assisted

[github-actions]

Are you an Automattician? Please test your changes on all WordPress.com environments to help mitigate accidental explosions.

• To test on WoA, go to the Plugins menu on a WoA dev site. Click on the "Upload" button and follow the upgrade flow to be able to upload, install, and activate the Jetpack Beta plugin. Once the plugin is active, go to Jetpack > Jetpack Beta, select your plugin (Jetpack), and enable the add/jetpack-ai-seo-option branch.
• To test on Simple, run the following command on your sandbox:

bin/jetpack-downloader test jetpack add/jetpack-ai-seo-option

Interested in more tips and information?

• In your local development environment, use the jetpack rsync command to sync your changes to a WoA dev blog.
• Read more about our development workflow here: PCYsg-eg0-p2
• Figure out when your changes will be shipped to customers here: PCYsg-eg5-p2

[github-actions]

Thank you for your PR!

When contributing to Jetpack, we have a few suggestions that can help us test and review your patch:

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• ✅ Add a "[Status]" label (In Progress, Needs Review, ...).
  
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• ✅ Add changelog entries to affected projects
  

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Follow this PR Review Process:

1. Ensure all required checks appearing at the bottom of this PR are passing.
2. Make sure to test your changes on all platforms that it applies to. You're responsible for the quality of the code you ship.
3. You can use GitHub's Reviewers functionality to request a review.
4. When it's reviewed and merged, you will be pinged in Slack to deploy the changes to WordPress.com simple once the build is done.

If you have questions about anything, reach out in #jetpack-developers for guidance!

---

Jetpack plugin:

The Jetpack plugin has different release cadences depending on the platform:

• WordPress.com Simple releases happen as soon as you deploy your changes after merging this PR (PCYsg-Jjm-p2).
• WoA releases happen weekly.
• Releases to self-hosted sites happen monthly:
  • Scheduled release: September 7, 2026

If you have any questions about the release process, please ask in the #jetpack-releases channel on Slack.

[jp-launch-control]

Code Coverage Summary

Coverage changed in 1 file.

File	Coverage	Δ%	Δ Uncovered
projects/plugins/jetpack/_inc/lib/class-jetpack-ai-settings.php	44/59 (74.58%)	0.03%	1 ❤️‍🩹

Full summary · PHP report · JS report