
Before You Build It: The AWS Primitive That Replaces the Custom Piece
A lab design review still had a cron server for a nightly job. Classic Lambda had already stopped at 900 seconds. Name the primitive, or name the stop-rule that keeps the box.
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A lab design review still had a cron server for a nightly job. Classic Lambda had already stopped at 900 seconds. Name the primitive, or name the stop-rule that keeps the box.

A lab schedule after the 3 August 2026 GA returned findings and zero pull requests. Agentic-readiness scores 56 criteria. AWS-managed compute runs analyses only — remediation still needs Batch or EC2.

A lab query still returned a customer the source deleted. Zero-ETL can land DynamoDB and listed SaaS sources in S3 Tables. A self-managed database cannot. Firehose database CDC was removed on 24 September 2025.

A lab table landed twice: Zero-ETL and DMS on the same rows. Self-managed databases replicate only to Redshift. Firehose Direct PUT into Iceberg is capped at 5 MiB/s in three regions, and database CDC was removed on 24 September 2025.

A lab renewal only changed the connection string, and a construct was still unconverted. Babelfish speaks TDS 7.1 through 7.4 on port 1433 and does not apply to Oracle. Identifiers longer than 63 characters are rewritten.

As of 3 October 2026 the managed AWS MCP Server has endpoints in 8 Regions, a hard cap of 10 authenticated requests per second, and two auth paths. OAuth is the single-account start. SigV4 is the one that can hide write tools and switch accounts.

On 9 Sep 2026 AWS raised LMI async and ESM timeout from 15 to 90 minutes (5,400 s). A 90-minute SQS consumer needs at least 9 hours of visibility. Sync and classic on-demand Lambda stay at 15 minutes.

On Aug 7, 2026, AWS shipped aws-auth as a core Cognito skill in the Agent Toolkit—603 installs on skills.sh within days, 9 reference packs under skills/core-skills/aws-auth, and a hard warning that update-user-pool-client is a full replace.

On August 4, 2026 Amazon Connect Cases gained workspace CSV export in 10 Regions — Cases.Export permission, field picker, Cases-export-YYYY-MM-DD.csv. Enable for the right roles only.

EKS Kubernetes 1.36 is available with user namespaces GA and mutating admission policies. Since July 2026 you can roll back an in-place control-plane upgrade within 7 days at no extra charge — but only N→N-1, and Fargate or strict PDBs can block you.

On July 23, 2026 AWS GA’d the Durable Execution SDK for .NET (Amazon.Lambda.DurableExecution). Score your C# workflows against our durable-vs-Step-Functions matrix — most integration-heavy flows still belong in ASL.

On July 16, 2026 AWS removed the 30-day Standard residency gate for Standard-IA and One Zone-IA lifecycle transitions — day-0 IA can cut first-month storage ~46% on 10 TB cold logs, but the 30-day IA billing minimum and $0.01/GB retrieval fees still apply.