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docs(aws-serverless): update LMI skill for region expansion and scheduled scaling#201

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sbbhimji:lmi-scheduled-scaling-region-expansion
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docs(aws-serverless): update LMI skill for region expansion and scheduled scaling#201
sbbhimji wants to merge 1 commit into
awslabs:mainfrom
sbbhimji:lmi-scheduled-scaling-region-expansion

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@sbbhimji

@sbbhimji sbbhimji commented Jun 19, 2026

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Summary

Updates the aws-lambda-managed-instances skill (in the aws-serverless plugin) for two recent Lambda Managed Instances launches:

  1. Region expansion (announcement) — LMI is now available in all commercial AWS Regions except Israel (Tel Aviv), Middle East (Bahrain), Middle East (UAE), and Asia Pacific (Auckland). Replaces the previous fixed five-region list and updates the "Unsupported Region" handling to name the excluded Regions and suggest the nearest supported one.
  2. Scheduled scaling (announcement) — documents using Amazon EventBridge Scheduler to adjust MinExecutionEnvironments/MaxExecutionEnvironments on a one-time or recurring schedule for predictable traffic (scale up before peak, scale down or to zero when idle).

Files changed

  • SKILL.md: regional availability + unsupported-Region scenario; scheduled scaling trigger and scheduled-scaling tag in frontmatter; scheduled-scaling note in Step 3; two Operations best practices; reference-file pointers; Scaling docs link in Resources.
  • references/configuration-guide.md: new "Scheduled Scaling (Predictable Traffic)" section — behavior notes (still scales on CPU/concurrency between bounds; Min=Max=0 deactivates and needs explicit reactivation) and a common-patterns table.
  • references/infrastructure-setup.md: new "Scheduled Scaling (EventBridge Scheduler)" section — scheduler IAM trust/permissions policies, create-schedule examples targeting the PutFunctionScalingConfig universal target, and a manual put-function-scaling-config override.

Testing

  • dprint check — clean
  • markdownlint-cli2 (incl. custom skill-length + frontmatter rules) — 0 errors
  • lint:cross-refs — 0 errors
  • validate:refs — 0 broken links
  • validate:size — SKILL.md 225 lines / 1566 words, description 626 chars (all under limits)

Documentation-only change; content verified against the LMI scaling documentation. Uses placeholder identifiers (<account-id>) only.

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of the project license.

…uled scaling

- Region availability: now all commercial AWS Regions except Israel (Tel Aviv), Middle East (Bahrain), Middle East (UAE), and Asia Pacific (Auckland); update Unsupported Region handling.
- Scheduled scaling: document EventBridge Scheduler-based scheduled scaling of Min/Max execution environments for predictable traffic (SKILL.md, configuration-guide.md, infrastructure-setup.md).
@sbbhimji sbbhimji requested review from a team as code owners June 19, 2026 21:08
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