Update docs related to Terraform Stacks

[ker-an]

What

This PR:

• ...TODO

Why

Stacks now supports multiple deployment runs per deployment group, and introduces the ability to configure group settings with eager_plan and failure_tolerance.

Related pull request
Jira

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Merge Checklist

If items do not apply to your changes, add (N/A) and mark them as complete.

Pull Request

• Description links to related pull requests or issues, if any.

Content

• Redirects have been added to content/terraform-docs-common/redirects.jsonc for moved, renamed, or deleted pages. (N/A)
• API documentation and the API Changelog have been updated.
• Links to related content where appropriate (e.g., API endpoints, permissions, etc.).
• Pages with related content are updated and link to this content when appropriate.
• Sidebar navigation files have been updated for added, deleted, reordered, or renamed pages. (N/A)
• New pages have metadata (page name and description) at the top. (N/A)
• New images are 2048 px wide. They have HashiCorp standard annotation color (#F92672) and format (rectangle with rounded corners), blurred sensitive details (e.g. credentials, usernames, user icons), and descriptive alt text in the markdown for accessibility. (N/A)
• New code blocks have the correct syntax and line breaks to eliminate horizontal scroll bars.
• UI elements (button names, page names, etc.) are bolded.
• The Vercel website preview successfully deployed.

Reviews

• I or someone else reviewed the content for technical accuracy.
• I or someone else reviewed the content for typos, punctuation, spelling, and grammar.

[github-actions]

Vercel Previews Deployed

Name	Status	Preview	Updated (UTC)
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Unified Docs API	✅ Ready (Inspect)	Visit Preview	Wed Aug 12 21:42:26 UTC 2026

[github-actions]

Broken Link Checker

This PR contains broken links, but won't be blocked. Use this report to improve content quality:

Quick Actions

• Internal links (HashiCorp sites): Please fix these - they impact user experience
• External links: Consider if these are essential or can be updated/removed
• Temporary issues: External sites may recover - check again before merging

Need Help?

• Review our Broken Link Monitoring docs
• Check the monthly production report for context

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Internal Links

Full Github Actions output

External Links

Summary

Status	Count
🔍 Total	331
✅ Successful	7
⏳ Timeouts	0
🔀 Redirected	6
👻 Excluded	318
❓ Unknown	0
🚫 Errors	0
⛔ Unsupported	0

Redirects per input

Redirects in content/terraform-docs-common/docs/cloud-docs/api-docs/stacks/deployments.mdx

• [200] https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/202 | Redirect: Followed 1 redirect resolving to the final status of: OK. Redirects: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/202 --[301]--> https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/202
• [200] https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/204 | Redirect: Followed 1 redirect resolving to the final status of: OK. Redirects: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/204 --[301]--> https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/204
• [200] https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/404 | Redirect: Followed 1 redirect resolving to the final status of: OK. Redirects: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/404 --[301]--> https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/404
• [200] https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/409 | Redirect: Followed 1 redirect resolving to the final status of: OK. Redirects: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/409 --[301]--> https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/409
• [200] https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/422 | Redirect: Followed 1 redirect resolving to the final status of: OK. Redirects: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/422 --[301]--> https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Status/422

Redirects in content/terraform-docs-common/docs/cloud-docs/stacks/destroy.mdx

• [200] https://app.terraform.io/ | Redirect: Followed 2 redirects resolving to the final status of: OK. Redirects: https://app.terraform.io/ --[301]--> https://app.terraform.io/session --[302]--> https://app.terraform.io/login

Full Github Actions output

[ker-an]

@nfagerlund I added this question...