Dark Code: The AI-Generated Software Nobody Understands
Dark code is software no human has written, read, or reviewed. See what traffic replay can verify, its limits, and a working regression check.
Posts by Josh Thornton
Josh Thornton is a contributor to the Speedscale blog. • 9 posts published
API Traffic Replay Testing: The Definitive Guide (2026)
API traffic replay testing guide with verified examples. Compare GoReplay, WireMock, Speedscale and proxymock, and see what a CI replay gate proves.
Part 3: Designing a Reliable API Traffic Replay System
Design a traffic replay system that catches wrong responses. Connect recordings, state isolation, response checks, and CI gates with a proxymock example.
Kubernetes Load Test Tutorial Playbook
Run a Kubernetes load-test tutorial with recorded traffic. Check cluster prerequisites, dependency coverage, and data reset before repeating a replay.
Kubernetes Load Testing Best Practices
Plan Kubernetes load tests with clear workload models, isolated dependencies, and measured generator capacity. Compare tools and read results in context.
Run Local LLMs on Mac to Cut Claude Costs
A practical hybrid workflow that uses costly LLM APIs for planning and local models (via Ollama + OpenCode) for execution, guarded by deterministic evals.
What the Warp Terminal Sends Home
We recorded Warp traffic to see what gets sent back to the home base. Spoiler: It's everything.
AI Coding Agents Break What Works
AI agents silently modify working systems to force changes through. Three real patterns and the guardrails that catch them.
Building Speedy: An Autonomous AI Development Agent
How we built an AI agent that implements Jira tickets, creates merge requests, and monitors them autonomously—and the iterative journey to get there.
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