aws-lambda

TypeSafe priced Jev at $0.042/MTok with claimed 70–500 ms decisions on 15 Sep 2026. On AWS it is a System-1 sidecar, not a Bedrock replacement — reuse the Gateway ~180→95 ms canary and the ~$791/mo AgentCore silhouette as platform context, not as a Jev outcome.

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 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.

For a .NET monolith (~220 endpoints, ~$28k/mo EC2), strangling 14 endpoints to Lambda cut p95 on those routes 1.4s → 210ms — an early LMI move on spiky traffic wasted ~$3.2k in idle capacity provider hours.

After Mar–May 2026 LMI updates (32 GB / 16 vCPU, 4,096 FDs, EventBridge scheduled scaling), a B2B analytics API (~40k peak RPM, 9–6 UTC) cut idle capacity cost ~62% by scheduling MinExecutionEnvironments 20→3 off-peak.

As of May 8, 2026, Lambda bills INIT time on cold paths (pricing change live since Aug 1, 2025), API Gateway REST integrations time out at 29 seconds, and picking ALB vs NLB still determines whether TLS termination and routing live on the edge.

API Gateway REST integrations still max out at 29 seconds—if your Lambda keeps retrying a 35-second partner HTTP call without a bounded circuit, you burn capacity and duplicate side effects instead of failing fast.

On May 6, 2026, AWS made its managed MCP server generally available in 2 regions—with IAM guardrails, CloudWatch metrics, and CloudTrail logging—while the March 25, 2026 Agent Plugin for AWS Serverless brought packaged SAM/CDK skills into Cursor and Claude Code.

As of July 2026, Lambda S3 Files still mounts S3 as POSIX via NFS — roughly S3 Standard storage rates vs EFS for large files — but versioning is required, IAM is s3files:*, capacity providers are incompatible, and a ~60s write-back window breaks naive ports.

Kinesis Data Streams combined with Lambda and DynamoDB is the simplest path to a real-time data pipeline on AWS. Here is the complete architecture, code patterns, and operational guidance.

Provisioned Concurrency is still the most over-bought Lambda knob. July 2026: INIT billed since Aug 2025, SnapStart runtimes, ~$54/mo illustrative PC baseline math, Power Tuning before you buy warm capacity.