Documents ML anomaly detection and Stack Management alerts on the Observability Alerts page

[nastasha-solomon]

Summary

Fixes #6602.

Updates the Observability Alerting overview to clarify which rule types surface alerts on the Alerts page. Previously, the page described how to view and filter alerts but gave no indication of which alert consumers were included, leaving users who create ML anomaly detection or Stack Management rules without any explanation for why those alerts might not appear.

Changes

solutions/observability/incident-management/alerting.md

• Adds a bullet list under the "Alerts page" section enumerating the three supported alert type categories: Observability rules (APM, Logs, Metrics, Uptime, SLOs), ML anomaly detection rules, and Stack Management rules.
• Tags the ML and Stack Management list items with {applies_to} stack: ga 9.5 to reflect that these alert types became visible on the Observability Alerts page in 9.5.0. Serverless inherits the page-level serverless: ga tag.
• Adds a note that ML anomaly detection and Stack Management alerts are visible only to users with the corresponding feature privileges, as access is governed by backend RBAC.

Generative AI disclosure

1. Did you use a generative AI (GenAI) tool to assist in creating this contribution?

• Yes - Cursor + Claude
• No

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🔍 Preview links for changed docs

• solutions/observability/incident-management/alerting.md

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✅ Elastic Docs Style Checker (Vale)

No issues found on modified lines!

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Docs review summary

Focus areas

• Style and clarity: One minor wording suggestion to simplify the RBAC note. Vale found no issues with the modified lines.
• Jargon: No issues. The {{ml}} and {{stack-manage-app}} substitution variables are appropriate for UI labels.
• Frontmatter and applies_to: The {applies_to} syntax is correct: stack: ga 9.5+ properly indicates that ML and Stack Management alerts became visible starting in 9.5.0. Page-level frontmatter is complete with description, products, and applies_to fields.
• Content type fit: The page functions as an overview, and the added content appropriately clarifies which alert types appear on the Alerts page without changing the page's purpose.
• Parent issue satisfaction: Satisfied. The PR fully addresses issue #6602 by enumerating the three supported alert type categories and explaining visibility based on feature privileges.

Notes

• The {{ml}} and {{stack-manage-app}} substitution variables appropriately represent UI labels and do not require spelling out the abbreviations.
• No additional inline comments were needed beyond the one minor style suggestion.

Generated by Docs review agent for issue #6848 · ● 582.4K

[benironside]

text and preview LGTM!