Articles 6 | DevelopersIO

produced by Classmethod

I Compared All the OpenAI APIs — Responses API, Chat Completions, Agents SDK, AgentKit: Which One Should You Actually Use?

2026.07.13

A new champion among partner LLMs for DGX Spark? Comparing Qwen3.6-35B-A3B-NVFP4 in two quantized versions

森茂洋 / Hiroshi Morishige

2026.07.13

I analyzed VPC flow logs with DuckDB and narrowed down security groups with 0.0.0.0/0

林睦記 / Mutsuki Hayashi

2026.07.13

I tried out the Context Management feature of Strands Agents

2026.07.13

[Speaker Report] I gave a mini session titled "Is It Too Late Once You Have More Accounts? ~ Key Points of Multi-Account Governance ~" #AWSSummit

2026.07.13

[Update] I tried out Data Lineage supported by Amazon SageMaker Unified Studio in IAM-based domains

2026.07.12

I tried configuring Inbound Authentication (JWT Authentication) for Amazon Bedrock AgentCore Runtime with Keycloak in a private subnet

2026.07.12

I tried configuring readonlyRootFilesystem + tmpfs in a custom task definition for ECS Express Mode with CloudFormation

2026.07.12

I tried setting up scheduled tasks in Copilot Cowork

けーま (川田圭真)

2026.07.12

I tried using Microsoft 365 Copilot Cowork

けーま (川田圭真)

2026.07.12

I measured the VPC endpoints required to run Epic Games' Lore on a private subnet without NAT

越井琢巳 (Koshii Takumi)

2026.07.12

# Organizing LLM Output Control and Extraction Techniques in 4 Layers — From Constrained Decoding to Prompt Design

2026.07.12

Chunk Anchoring — A Simple Technique to Prevent Ticket ID Hallucination in RAG

2026.07.12

Adding classification functionality "for free" to LLM pipelines with asyncio.gather

2026.07.12

# Understanding Prompt Caching's "Prefix Principle" — cache_control Breakpoint Placement Strategies and Practical Benefits of Tool Definition Caching

2026.07.12

Understanding Python's yield — From the Difference with return to Streaming Input Patterns for AI Agents

2026.07.12

Normalizing MCP tool output before passing it to the model — the PostToolUse hook pattern

2026.07.12

I Tried Implementing Supply Chain Attack Countermeasures for Developer PCs

2026.07.12

The story of Jest hanging in CI, and the story of migrating to Floci because LocalStack became paid

2026.07.12

I tried deploying Epic Games' Lore server to AWS Fargate + S3 + DynamoDB with Terraform

越井琢巳 (Koshii Takumi)

2026.07.12

A story about getting an "effect_orphan" error when using $effect in a class constructor with Svelte 5

2026.07.12

I tried creating a "GCP Architecture Diagram Skill" with Claude Code — The fundamental differences in icon formats revealed through porting an AWS skill

2026.07.12

Implemented an SSE progress bubble in RAG chat that shows "what it's currently doing"

2026.07.12

I built an automatic generation pipeline that "absolutely never drifts" the OpenAPI specification for FastAPI

2026.07.12

I checked what you can do with the pnpm access command added in pnpm 11.11.0

2026.07.12

I tried out the new features of Amazon Location Service Places, such as "multilingual addresses" and "travel mode optimization"

2026.07.12

I tried Grok 4.5 with Grok Build CLI — A comparison of responses with Opus 4.8, Sonnet 5, and GPT-5.5

2026.07.12

Epic Games Version Control Lore Compared with Perforce / SVN / Git from a Practitioner's Perspective

越井琢巳 (Koshii Takumi)

2026.07.11

I tried AgentCore Observability across accounts

2026.07.11

ちょっと話題の記事

I had Fable 5, Opus 4.8, and GPT 5.6 Sol solve difficult Project Euler problems and compared them

2026.07.11

The story of redesigning Claude Code skills — integrating xlsx/pptx/docx into ms-office-suite

2026.07.11

Main Updates in Claude Code v2.1.207

2026.07.11

[Book Review] "Introduction to OpenID Connect" A Book for Making Correct Judgments About Authentication and Authorization Specifications in AI-Driven Development

2026.07.11

I tried the new feature of DMS Schema Conversion "Automation of AI agents using AWS MCP server"

2026.07.11

I tried the new "EventBridge state change events" feature of Amazon Timestream for InfluxDB and compared it with CloudTrail

2026.07.11

The story about metadata being stored in an unexpected format with hierarchical chunking in Bedrock Knowledge Bases

2026.07.11