CLAUDE LABJP
RATELIMIT — Claude API rate limits were raised. Sonnet and Haiku limits now match Opus at every usage tier, leaving more headroom for parallel workloadsTIERS — Usage tiers were consolidated into three: Start, Build, and Scale — a clearer picture of where your usage sitsRETIRE — The Developer Platform retired Claude Sonnet 4 and Opus 4 (…-20250514). Code referencing those old model IDs needs migratingFABLE5 — Claude Fable 5 is now included in Max and Team Premium plans, available at 50% of the limitFASTEND — Fast mode for Claude Opus 4.7 is removed on July 24 — two days left. Move any speed: 'fast' calls to fast mode on Opus 4.8CCODE — Claude Code keeps shipping stability updates: background sessions for /fork, smarter /resume and /background, and stronger safeguards for WebSearch, subagents, and BashRATELIMIT — Claude API rate limits were raised. Sonnet and Haiku limits now match Opus at every usage tier, leaving more headroom for parallel workloadsTIERS — Usage tiers were consolidated into three: Start, Build, and Scale — a clearer picture of where your usage sitsRETIRE — The Developer Platform retired Claude Sonnet 4 and Opus 4 (…-20250514). Code referencing those old model IDs needs migratingFABLE5 — Claude Fable 5 is now included in Max and Team Premium plans, available at 50% of the limitFASTEND — Fast mode for Claude Opus 4.7 is removed on July 24 — two days left. Move any speed: 'fast' calls to fast mode on Opus 4.8CCODE — Claude Code keeps shipping stability updates: background sessions for /fork, smarter /resume and /background, and stronger safeguards for WebSearch, subagents, and Bash
ARTICLES

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All (786) Claude AI (133) Claude Code (320) Cowork (54) API & SDK (279)
Claude AI/2026-04-27Intermediate

Anthropic IPO 2026 — A Builder's Roadmap in 7 Practical Lenses

Most Anthropic IPO coverage is written for investors. This piece reframes the same news through the eyes of a solo developer shipping with Claude — what it means for API pricing, model cadence, and the contract terms you should pay attention to.

API & SDK/2026-04-27Intermediate

Claude API Revenue Models Compared — Pay-per-Use, Subscription, One-Shot, and Revenue Share for Indie Developers

When you build something with Claude API to make money, the hardest decision is rarely the API itself — it's the pricing model. This guide compares the four most common models from an indie developer's point of view.

Claude AI/2026-04-27Beginner

Claude Mythos in Practice — Anthropic's New Model Spec and Where It Earns Its Keep

Anthropic quietly rolled out something called 'Claude Mythos.' Here's what it actually is, when to reach for it, and what I learned after spending a week with it in real projects.

Claude Code/2026-04-27Intermediate

When `claude --resume` Won't Restore Your Previous Session — A Practical Troubleshooting Guide

When Claude Code's --resume or --continue stops bringing back your last conversation, the cause almost always falls into one of four buckets. Here's how to walk through them in five to ten minutes.

Claude Code/2026-04-27Intermediate

Using Claude Code in a pnpm Monorepo — Combining --filter with dlx

Running Claude Code in a pnpm monorepo? It often touches files in packages you didn't ask about. Here's how to scope work properly with --filter, when dlx is dangerous, and what to put in .claude/settings.json so confirmation dialogs stop interrupting you.

API & SDK/2026-04-27Advanced

Production-Grade Hallucination Defense for Claude API: A Multi-Layer Architecture

Prompt engineering alone is not enough to suppress hallucinations in production. After a real customer incident, I rebuilt the system around four defensive layers — input grounding, tool-use escape hatches, citations, and post-hoc verification. This is the implementation playbook.

API & SDK/2026-04-26Advanced

Replay-Driven Testing for Claude API: A Production Pattern for Recording and Replaying Responses

A production-grade design for stabilizing Claude API tests by recording and replaying real responses. Covers cassettes for Messages, Streaming, Tool Use, CI integration, and incident replay.

Claude AI/2026-04-26Intermediate

Supercharge Your Research with Claude AI: From Information Gathering to Polished Reports

Learn how to use Claude AI across every stage of a research workflow — collecting information, organizing findings, and generating structured reports. Practical guide with working code examples.

Claude Code/2026-04-26Intermediate

Should You Flip CLAUDE_CODE_USE_POWERSHELL_TOOL=1? — A Practical Decision Guide for Windows Developers

When you run Claude Code on Windows, you eventually wonder whether CLAUDE_CODE_USE_POWERSHELL_TOOL=1 is worth flipping on. After running both modes across several projects, here is the decision rubric I now use.

Claude Code/2026-04-26Intermediate

Untangling Claude Code's 'Authorization Failed' Error — OAuth, MCP, and Dynamic Client Registration

Why Claude Code suddenly throws 'authorization failed' or 'incompatible auth server: does not support dynamic client registration', and what to actually do about it. A practical walkthrough of OAuth, MCP server requirements, and the real fixes that work in production.

Claude AI/2026-04-26Advanced

Claude Sonnet 4.6 vs Opus 4.6 — A Task-by-Task Selection Guide From Daily Use

Choosing between Sonnet 4.6 and Opus 4.6 comes up more often than you'd expect. From someone who uses both daily, here's a task-by-task breakdown — plus how the same yardsticks carry over to Sonnet 5 and Opus 4.8, and where a narrower price gap moves the break-even.

API & SDK/2026-04-26Advanced

Building a Scalable Real-Time AI Chat Server with Claude API × WebSocket × Redis Pub/Sub — Node.js Production Architecture, Multi-User Management, and Cost Control

Running a real-time AI chat server on Claude API, WebSocket, and Redis Pub/Sub in production. SSE trade-offs, multi-instance routing, and how stop latency quietly corrupts per-user budgets — with the instrumentation code to measure it.