◉CLAUDE LABJP
●OPUS48 — The default model on Bedrock, Vertex, and AWS is now Claude Opus 4.8. Opus 4.8 and Haiku 4.5 are also in the Messages API, with prompt caching and extended thinking●STREAM — A Claude Code stability and quality update landed: subagent text over stream-json, stronger permission and hook handling, and better background-agent reporting●FASTEND — Fast mode for Claude Opus 4.7 is removed on July 24. After that, speed: 'fast' returns an error, so migrate to fast mode on Opus 4.8●TEACH — Claude for Teachers is here, giving verified US K-12 educators free premium access, plus curriculum connections aligned to standards in all 50 states and new education connectors●FIX — The update fixes issues across Chrome, Windows, Bedrock, Vertex, hooks, and session recovery, and speeds up terminal rendering●IPO — Bankers are reportedly lining up investor meetings for Anthropic ahead of a possible public listing as soon as October●OPUS48 — The default model on Bedrock, Vertex, and AWS is now Claude Opus 4.8. Opus 4.8 and Haiku 4.5 are also in the Messages API, with prompt caching and extended thinking●STREAM — A Claude Code stability and quality update landed: subagent text over stream-json, stronger permission and hook handling, and better background-agent reporting●FASTEND — Fast mode for Claude Opus 4.7 is removed on July 24. After that, speed: 'fast' returns an error, so migrate to fast mode on Opus 4.8●TEACH — Claude for Teachers is here, giving verified US K-12 educators free premium access, plus curriculum connections aligned to standards in all 50 states and new education connectors●FIX — The update fixes issues across Chrome, Windows, Bedrock, Vertex, hooks, and session recovery, and speeds up terminal rendering●IPO — Bankers are reportedly lining up investor meetings for Anthropic ahead of a possible public listing as soon as October
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⬡ API & SDK/2026-05-28Intermediate

Why JSON.parse Fails on Claude API Streaming tool_use Arguments — and How to Fix It

When you stream a Claude API response with tool_use, calling JSON.parse on each input_json_delta throws SyntaxError. Here is the correct way to assemble partial_json fragments, plus disconnect handling.

⬡ API & SDK/2026-05-10Advanced

Bulletproof JSON Output with Claude API Prefill: A Four-Layer Defense Pattern from Indie SaaS

How I went from late-night JSON parse failures to a 100% parse success rate across thousands of monthly Claude API requests. Working code in TypeScript and Python, plus production numbers from an indie SaaS.

⟐ Claude Code/2026-04-25Intermediate

Automating CI/CD Pipelines with Claude Code's --print and --output-format json

A practical guide to using Claude Code's --print flag and --output-format json in CI/CD pipelines. Covers automated code review in GitHub Actions, PR comment generation, and test failure analysis — with working code throughout.

⬡ API & SDK/2026-04-16Intermediate

Claude API JSON Output Fails: 5 Root Causes and Fixes

Fix Claude API JSON parsing errors with these 5 common root causes: markdown code block wrapping, truncated output, injected commentary, Unicode escaping, and streaming parse failures. Includes copy-paste ready Python utility code.