All Articles
Cancelling Claude API Streams the Right Way: AbortController, Token Billing, and Connection Hygiene
I measured 100 cancelled Claude API streams to find out what actually gets billed. The drift numbers, the $18.70/month a missing close handler costs you, the proxy buffering trap, and a ledger that never loses a usage event — Node.js and Python.
Recipes for a Useful Claude Code Status Line — Show Model, Remaining Context, and Git Branch in One Line
Concrete recipes for a Claude Code status line that displays the active model, remaining context, and git branch in a single line — written in both Bash and Node.js, with the failure modes you should plan for.
Building a Budget Circuit Breaker for Claude API in Production — Auto-Halt When Daily Token Spend Exceeds Your Cap
A practical guide to enforcing daily and monthly Claude API budget caps in production. Includes copy-paste Cloudflare Workers + KV / Durable Objects code, three response strategies (halt, degrade, alert), and the operational habits that keep the breaker honest.
Calling Claude API from iOS Shortcuts: A Personal Setup for Reshaping Selected Text on the Fly
A personal setup guide for invoking the Claude API directly from iOS Shortcuts. Reshape selected text in seconds with a Cloudflare Workers proxy that keeps your API key off the device.
Stop Claude API Prompt Regressions with Golden-Dataset Testing
A complete production guide to catching the silent quality drift that hits Claude API prompts when models or prompts change — using golden datasets and LLM-as-a-Judge wired into CI.
When Your Claude API Retry Logic Made Rate Limits Worse — The Retry-After Header You Forgot to Read
If 429 errors went up after you added retry logic to your Claude API client, the cause is almost always the same: ignoring the Retry-After header and using exponential backoff without jitter. Here is how to diagnose and fix it.
Designing a Release Gate Claude Code Can Run — Pre-Deploy Verification You Can Actually Read
A green CI does not mean a safe release. Walk through a seven-checkpoint release gate that asks Claude Code to write a readable, narrative report — with concrete scripts and the operational lessons behind them.
/clear vs /compact in Claude Code: Choosing the Right Reset for Long Sessions
When should you use /clear, and when should you reach for /compact in Claude Code? Three decision criteria from real long-session experience, with the pitfalls that hit me before I figured it out.
Claude Code × Storybook: A Production-Grade Component-Driven Development Playbook — From Auto-Generated Stories to Visual Regression and Design System Operations
A practical guide to combining Claude Code and Storybook for production-grade component-driven development. Covers auto-generating stories, visual regression strategy, interaction testing, CI integration, and running a design system at scale, with full code examples.
When Claude won't send your message: a diagnostic order that always finds the cause
When the send button does nothing, the spinner runs forever, or your message vanishes — here's the order I work through to find the real cause within five minutes.
Testing Stripe Webhooks Safely with Claude Code: Three Practical Local Workflows
Reproduce Stripe webhook failures locally with confidence. Three practical patterns combining Claude Code with Stripe CLI, signed payload replay, and idempotency checks — with full working code.
Claude API Telemetry on ClickHouse: A Production Guide to Cost, Latency, and Error Analytics
Stream per-request Claude API telemetry into ClickHouse, build sub-second dashboards with materialized views, and detect cost spikes, retry loops, and silent failures with practical SQL recipes.