CLAUDE LABJP
MODEL — Claude Fable 5.1 and Claude Mythos 5.1 landed on September 1. They are the same underlying model; only the strength of the safeguards differsPRICING — Per-token rates hold at $10/$50 per MTok. What changed is cache reads, cut 75% to $0.25 per MTokCOST — How much that saves depends on your workload: roughly 25% for typical use, up to about 45% for context-heavy agentic work. Worth measuring your own split before quoting a numberBENCH — Terminal-Bench-Science 0.1 climbs from 24.7% on Fable 5 to 52.6%. Anthropic also states a standard error of 3.5-4.5 points, which is worth remembering before reading small gaps as realSAFEGUARDS — Sharper cyber safeguards cut interventions in Claude Code sessions by roughly 60% on average. Finding vulnerabilities is now allowed; developing exploits still is notAPI — New API accounts created from today can no longer edit prior context while preserving Claude's thinking transcript. It is an anti-distillation measure, and existing accounts are unaffected for nowMODEL — Claude Fable 5.1 and Claude Mythos 5.1 landed on September 1. They are the same underlying model; only the strength of the safeguards differsPRICING — Per-token rates hold at $10/$50 per MTok. What changed is cache reads, cut 75% to $0.25 per MTokCOST — How much that saves depends on your workload: roughly 25% for typical use, up to about 45% for context-heavy agentic work. Worth measuring your own split before quoting a numberBENCH — Terminal-Bench-Science 0.1 climbs from 24.7% on Fable 5 to 52.6%. Anthropic also states a standard error of 3.5-4.5 points, which is worth remembering before reading small gaps as realSAFEGUARDS — Sharper cyber safeguards cut interventions in Claude Code sessions by roughly 60% on average. Finding vulnerabilities is now allowed; developing exploits still is notAPI — New API accounts created from today can no longer edit prior context while preserving Claude's thinking transcript. It is an anti-distillation measure, and existing accounts are unaffected for now
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Claude Code/2026-04-25Intermediate

When Claude Code Hooks Loop Forever — Stopping Self-Triggering PostToolUse Hooks

You wired up Claude Code hooks and now your terminal is a waterfall of tool calls that won't stop. Here's why PostToolUse hooks loop on themselves, and the patterns I use in real projects to make sure they never do again.

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/2026-04-25Intermediate

Selling Knowledge Products with Claude API — Generating PDFs, Templates, and Newsletters That Actually Make Money

How to use Claude API to auto-generate and sell knowledge products — PDFs, templates, and newsletters — through platforms like Gumroad and Stripe. Includes working code examples.

Claude Code/2026-04-22Intermediate

Auto-Generating Conventional Commits with Claude Code — Letting it Infer Type and Scope from the Diff

Are your commit messages starting to look like a wall of update and fix? Here's a small, stable setup that lets Claude Code read your staged diff and turn it into proper Conventional Commits.

Claude Code/2026-04-17Advanced

Building a Custom Autonomous Agent Loop with Claude Code SDK — Beyond the CLI

Understand the internals of the Claude Code SDK and build custom autonomous agent loops in Python and TypeScript. Covers tool permissions, error recovery, and streaming, plus the cost instrumentation and monthly model audits I rely on in real operation.

Cowork/2026-04-17Intermediate

Auto-Organizing Dropbox with Cowork — File Classification, Duplicate Removal, and Naming Conventions

When your Dropbox starts feeling chaotic, let Cowork handle it. Learn how to build an automated system for file classification, duplicate detection, and bulk renaming — and schedule it to run weekly.

API & SDK/2026-04-17Advanced

Building a GitHub PR Review Bot with Claude API — From Webhook Signature Verification to Structured Reviews with Tool Use

Build a production PR review bot with Claude API and GitHub Webhooks. Enforce structured scoring, security scanning, and suggestions via Tool Use — with signature verification, debouncing, rate limits, and cost tracking drawn from real-world operation.

Claude Code/2026-04-16Advanced

Claude Code Multi-Agent Parallel Execution — Task Tool and SubAgent Patterns That Hold Up in Practice

Measured results from parallelizing Claude Code with the Task tool and SubAgents. Covers what to split and what never to split, a validating aggregation layer in TypeScript, and the disk contention and stale-input traps I hit along the way.

Cowork/2026-04-15Intermediate

Cowork × Python Data Analysis Automation: Build a Weekly Report Pipeline with pandas and Matplotlib

Learn how to combine Cowork's scheduled tasks with Python to fully automate your data analysis reports. From pandas aggregation to Matplotlib charts and Google Sheets integration — a complete, production-ready implementation guide.

Claude AI/2026-04-11Advanced

Four Places My MCP Agent Broke — Measuring Aggregation Tools, Fake Parallelism, and Input Validation

The implementation holes I hit while running MCP servers and agent workflows as a solo developer, with numbers measured on my own machine: boundary values in aggregation tools, parallelism that quietly runs serially, brittle JSON parsing, and the limits of blocklist-style input validation.

Cowork/2026-04-11Intermediate

Automate App Store Connect with Claude in Chrome — Metadata, Reviews, and ASO Optimization

Learn how to use Claude in Chrome with App Store Connect to automate iOS app metadata updates, review replies, and ASO optimization. A practical guide for indie developers looking to cut down on store management overhead.

Claude AI/2026-04-08Intermediate

How Freelancers and Creators Can Grow Revenue with Claude AI in 2026

A practical guide for freelance writers, designers, and video creators to increase income with Claude AI. Includes workflow templates, prompt strategies, and three monetization models to reach six-figure revenue.