◉CLAUDE LABJP
●2.1.278 — The auto mode classifier now runs server-side by default on the Claude API, Enterprise, Bedrock, Vertex and Foundry. You are not billed for the classifier, and /status gained an Auto mode server line●TASKOUT — The TaskOutput tool is gone. taskOutputMaxChars and TASK_MAX_OUTPUT_LENGTH no longer do anything, and background output is read with Read instead●10/07 — The old management-configuration key spellings are accepted until noon PT on October 7, seventeen days from now. After that, entries that still use them stop working until you rewrite them●BUNPANIC — Reports are coming in of the newest build crashing on launch alone. Earlier builds still run on the same machine, which points at the release rather than the environment●NEW — Deciding what belongs in Cowork and what belongs in Claude Code, using the approval boundary as the line●SONNET4.5 — A date in a deprecation table is a floor, not an end date. Sonnet 4.5 is still active and no deprecation notice has been posted●2.1.278 — The auto mode classifier now runs server-side by default on the Claude API, Enterprise, Bedrock, Vertex and Foundry. You are not billed for the classifier, and /status gained an Auto mode server line●TASKOUT — The TaskOutput tool is gone. taskOutputMaxChars and TASK_MAX_OUTPUT_LENGTH no longer do anything, and background output is read with Read instead●10/07 — The old management-configuration key spellings are accepted until noon PT on October 7, seventeen days from now. After that, entries that still use them stop working until you rewrite them●BUNPANIC — Reports are coming in of the newest build crashing on launch alone. Earlier builds still run on the same machine, which points at the release rather than the environment●NEW — Deciding what belongs in Cowork and what belongs in Claude Code, using the approval boundary as the line●SONNET4.5 — A date in a deprecation table is a floor, not an end date. Sonnet 4.5 is still active and no deprecation notice has been posted
ARTICLES

All Articles

All (872)◉ Claude AI (141)⟐ Claude Code (371)◈ Cowork (63)⬡ API & SDK (297)
⬡ API & SDK/2026-03-16Advanced

Build a SaaS with Claude API × Stripe— to AI Subscription Monetization

Build and monetize an AI SaaS combining Claude API with Stripe. Covers architecture design, billing models, webhook implementation, and churn prevention.

⬡ API & SDK/2026-03-15Intermediate

Building an AI Chatbot with Claude API — Streaming, Conversation History & Cost Optimization

A record of building a chatbot on the Claude API from a minimal script upward: conversation history, streaming, a FastAPI endpoint, cost trimming, LINE/Telegram/Discord, and PII masking. The retry logic was rebuilt around measured jitter and the retry-after header.

⬡ API & SDK/2026-03-14Beginner

Claude Haiku 3 Deprecation (April 19, 2026): Complete Migration Guide to Claude Haiku 4.5

Claude Haiku 3 (claude-3-haiku-20240307) is being retired on April 19, 2026. This guide covers the deprecation timeline, what changes, and how to migrate to Claude Haiku 4.5 with ready-to-use code examples.

⬡ API & SDK/2026-03-14Advanced

Claude API Streaming & Tool Use in Production — Patterns for Parallel Calls, Error Handling, and Retry Strategies

Master production-grade streaming and tool use patterns with Claude API. Learn parallel tool calling, intelligent error handling, resilient retry strategies, and resource optimization.

⬡ API & SDK/2026-03-10Intermediate

Multimodal Input Guide — Working with Images and PDFs in the Claude API

How to send images and PDFs to the Claude API, when to reach for the Files API, and the cost and speed lessons you only learn by running it in production — with real measurements.

⬡ API & SDK/2026-03-09Intermediate

Claude API Error Handling and Retry Strategies

Learn about Claude API error codes, retry strategies, and rate limit handling. Best practices for building robust API integrations in production.

⬡ API & SDK/2026-03-09Intermediate

Claude API Rate Limits — Designing Automation That Doesn't Stall on 429s

Understand how Claude API rate limits (RPM, TPM, TPD) work, and learn practical patterns — token optimization, request queuing, batch processing, and Retry-After-aware retries — drawn from running multiple sites on automation.

⬡ API & SDK/2026-03-09Intermediate

Implementing Streaming Responses — Real-time Responses with the Claude API

Implement streaming responses with the Claude API using working Python and TypeScript examples — SSE format, event handling, error recovery, and UI patterns, in the order I verified them.

⬡ API & SDK/2026-03-04Intermediate

Claude API Quickstart — Your First API Call in 5 Minutes

Get started with the Claude API. From your API key to your first Python and TypeScript request, plus error handling and cost estimates — a 5-minute quickstart.