docs: add dia page

[khawlahssn]

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Please fill out the below to ensure your doc gets quickly approved and merged.

Description

Move DIA oracle documentation to the third-party content section and update integration guide.

Document type

• Gentle introduction
• Quickstart
• How-to
• Concept
• FAQ
• Troubleshooting
• Reference
• Third-party content
• Not applicable

Checklist

• I have read the CONTRIBUTE.md guidelines
• My changes follow the style conventions outlined in CONTRIBUTE.md
• I have used sentence-case for titles and headers
• I have used descriptive link text (not "here" or "this")
• I have separated procedural from conceptual content where appropriate
• I have tested my changes locally with yarn start or yarn build
• My code follows the existing code style and conventions
• I have added/updated frontmatter for new documents
• I have checked for broken links
• I have verified that my changes don't break the build
• Third-party docs only: Do you agree to the third-party content policy outlined within CONTRIBUTE.md?
  • Yes
  • Not applicable

Additional Notes

Build could not be verified locally, yarn build fails on master due to a missing sdk-sidebar.js. This is a pre-existing issue unrelated to these changes.

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All committers have signed the CLA.

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[anegg0]

Hi @khawlahssn , and thank you for submitting a PR.
For your content to be reviewed, please submit it as third-party content. You can find more info on CONTRIBUTE.
You might want to consider making your article more substantial: it needs to be a full how-to or tutorial.

[khawlahssn]

Hi @anegg0, thanks for the feedback! I've made the following changes:

• Moved the document to docs/for-devs/third-party-docs/DIA/dia.mdx
• Updated the frontmatter to follow the third-party content format (added third_party_content_owner, author, sme, sidebar_label)
• Updated the PR checklist accordingly

Note: I wasn't able to verify the build locally, yarn build fails on master due to a missing sdk-sidebar.js (the sdkDocsHandler.ts plugin can't load). This appears to be a pre-existing issue unrelated to my changes.

Regarding making the article more substantial, I'd appreciate any guidance on what you'd like to see expanded. I noticed other oracle docs follow a similar format and length. Happy to add more detail if needed!

[khawlahssn]

Hi @anegg0, just wanted to follow up on this PR. please let us know if any changes are needed from our end!

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Project	Deployment	Actions	Updated (UTC)
arbitrum-docs	Ready	Preview	Mar 19, 2026 2:41pm

[pete-vielhaber]

LGTM