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claude
48 postsCutting Claude API Costs 84% by Separating Vision and Reasoning
An OCR pipeline routed page images to Haiku and reasoning to Sonnet instead of Opus, cutting Claude API costs by 84%. Includes the model-routing math and a real JSON parsing bug.
Click Issues with Claude in Chrome and Their Solutions
Explore click issues with Claude in Chrome, their two main causes, and solutions to improve automation reliability.
Hidden Bugs Killing Claude Prompt Caching: The Fix That Cut Costs 80%
Why Claude prompt caching silently fails: timestamps, unsorted JSON, and per-user tool lists breaking the prefix match, plus the fix that cut costs 80%.
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commitbrief.comGetting JSON Out of Claude: Prefills Are Dead, Here's What Works
Assistant-turn prefills now throw 400 errors on newer Claude models. Here's how structured outputs and tool use replace the old JSON-forcing trick.
I dropped my French tutor and built an LLM-based learning system
A developer ditched a private French tutor and built a cheap spaced-repetition system using Claude, Groq Whisper and OpenAI TTS for grammar and speech practice.
How Sentry uses a Claude skill to reproduce SDK bugs
Sentry engineers built a Claude skill that turns GitHub issues into minimal reproductions, cutting boilerplate work and speeding up SDK bug triage across 159 packages.
Rust-Based Coding Agent Compatible with Claude Code Plugins
This Rust-based coding agent provides fast performance and Claude Code compatibility.
New Context Engineering Rules for Claude 5 Models
Explore the evolved context engineering practices for Claude 5, focusing on design over strict rules.
Claude Code: Anatomy of a Misfeature
Claude Code 2.1.198 introduced a feature allowing auto-continuation without user input, raising user trust concerns.
Identify Slow Hooks in Claude Code — Measure p95 with a One-Line Wrapper
A new wrapper for Claude Code logs execution times of hooks, helping identify performance issues by measuring p95.