Articles 12 | DevelopersIO

produced by Classmethod

I tried optimizing CloudFront VPC origin failover wait time from production logs

2026.07.21

The Story of How Dependabot's Major Version Bumps Broke Due to Ecosystem Unreadiness — The Traps of ESLint 10 and TypeScript 7

2026.07.21

I tried organizing the tool types that continue conversations and those that end conversations in Amazon Connect Customer AI Agent

2026.07.21

I tried creating a flyer with Claude Design and deploying it internally

2026.07.21

A non-engineer tried to systematize operational error response using Claude's Agent Skills

2026.07.21

Claude Code v2.1.215 to v2.1.216 Major Updates - Addition of sandbox settings and faster long sessions

2026.07.21

I tried recognizing dumpling weighing images with a VLM

tanaka-takeru@製造BT部

2026.07.21

A Story About Encountering a CreateNetworkInterface Permission Error for VPC Lambda in CDK Express Mode

じゅんきち@製造BT部

2026.07.21

I tried out the Interventions feature of Strands Agents

2026.07.21

CloudFront VPC Origin Outage (2026-07-16): Confirming from logs that approximately 30-second timeout waits were occurring

2026.07.21

I tried the new "UserIdentity filtering" feature of CloudTrail Network Activity Events

2026.07.21

[Summer Vacation Free Research Relay] I Measured Token Consumption for Each Claude Code Instruction

荒平祐次(arap)

2026.07.21

I checked the ETag and SHA-256 of a file uploaded to S3 using multipart upload

越井琢巳 (Koshii Takumi)

2026.07.21

I tried the trending embedded vector database LanceDB with Amazon S3 and Amazon Bedrock

2026.07.20

ちょっと話題の記事

I attempted to reproduce the nginx vulnerability reported in July 2026 (CVE-2026-42533) in Docker

2026.07.20

Recovered from remote state after Terraform apply failed midway

越井琢巳 (Koshii Takumi)

2026.07.20

I tried E2E testing Next.js LLM streaming without external APIs using Playwright

越井琢巳 (Koshii Takumi)

2026.07.20

I tried building a daily backup environment for Linux using BorgBackup + USB SSD

2026.07.20

[Update] I tried out the new feature where zero-ETL integrations and S3 event integrations are automatically maintained when restoring from snapshots in Amazon Redshift Serverless

2026.07.19

I verified the behavior of Perforce exclusive locks in detail

越井琢巳 (Koshii Takumi)

2026.07.19

Verified the scope of what AI can and cannot handle when operating from Claude Code via Perforce P4 MCP

越井琢巳 (Koshii Takumi)

2026.07.18

I also compared two quantized versions of Gemma 4 NVFP4 on DGX Spark

森茂洋 / Hiroshi Morishige

2026.07.18

I checked the results of operating AWS WAF Anti-DDoS managed rules on CloudFront for one year

2026.07.18

I tried putting together a scenario using Twilio ConversationRelay with a restaurant as the subject, where "first-line phone responses are handled by AI"

越井琢巳 (Koshii Takumi)

2026.07.18

Claude Code v2.1.213 to v2.1.214 Major Updates - Claude Fable 5 is now included in all Max and Team Premium plans, available at 50% of the limit

2026.07.18

[Update] Amazon GuardDuty Can Now Detect Misuse of Leaked Amazon ECS Credentials

2026.07.18

"Business handover" and "introducing generative AI into operations" are similar topics

ケーイチ｜生成AIコンサルタント@Classmethod

2026.07.17

# When Generating Amazon GuardDuty Sample Findings Resulted in a $200 Charge from AWS DevOps Agent

2026.07.17

I attended the JAWS-UG Yokohama #102 AWS Service Termination Memorial LT Event and performed a memorial service for the AWS services that couldn't pass on to the afterlife #jawsug #jawsugyokohama

Guri / Hajime Oguri

2026.07.17

I tried out the CLI "ax" that combines web page fetching and extraction into a single command for AI agents

Guri / Hajime Oguri

2026.07.17

I tried distributing IPv4/IPv6 using the new "IpAddressType" feature in NLB listener rules

2026.07.17

A Japanese SME in Germany Tried Implementing Personio — Part 2: Attendance and Leave Management

2026.07.17

I tried retrieving received text in Amazon Connect Customer two-way SMS and handling it with Lambda

2026.07.17

[Update] Custom asset types are now available in IAM-based domains of Amazon SageMaker Unified Studio, so I tried cataloging Amazon QuickSight dashboards

2026.07.17

[Presentation Materials] I gave a presentation titled "Let's Think About How Risk Management Should Be in the AI Era" at the CCoE Practitioners Community Kansai.

荒平祐次(arap)

2026.07.17

Claude Code v2.1.212 Major Updates

2026.07.17