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Locators & Web-First Assertions (Playwright + TypeScript, Ch.3)

Locators & Web-First Assertions (Playwright + TypeScript, Ch.3)

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5 min read
I designed a Harness to fix my agent's quality problem — then found 6 flaws in my own design

I designed a Harness to fix my agent's quality problem — then found 6 flaws in my own design

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8 min read
Differential Testing Revealed What Conformance Testing Missed: A Case Study with Open-Source eMRTD Libraries

Differential Testing Revealed What Conformance Testing Missed: A Case Study with Open-Source eMRTD Libraries

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7 min read
Why I Built a macOS Workspace for Mobile Navigation Testing

Why I Built a macOS Workspace for Mobile Navigation Testing

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2 min read
I Built an LLM Filter That Prefers Silence Over Slop, and the Eval Harness That Keeps It Honest

I Built an LLM Filter That Prefers Silence Over Slop, and the Eval Harness That Keeps It Honest

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4 min read
My Tests Required a Running Database. Interfaces Fixed That.

My Tests Required a Running Database. Interfaces Fixed That.

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7 min read
Browser Automation Myths Teams Still Believe, and What to Compare Instead

Browser Automation Myths Teams Still Believe, and What to Compare Instead

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7 min read
A Practical Note on Testing in Release Pipelines Without Slowing the Team Down

A Practical Note on Testing in Release Pipelines Without Slowing the Team Down

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7 min read
English-Only Agent Evals Miss Real Failures

English-Only Agent Evals Miss Real Failures

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6 min read
Almost Done: The Hidden Tradeoffs of Playwright E2E Testing in a Fast-Moving App

Almost Done: The Hidden Tradeoffs of Playwright E2E Testing in a Fast-Moving App

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5 min read
Manual Testing: How We Make Sure Software Works Correctly

Manual Testing: How We Make Sure Software Works Correctly

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6 min read
I tested the 'deterministic agent loop' claims with four experiments. They all failed — including my own fix.

Formal code failing at the semantic layer

I tested the 'deterministic agent loop' claims with four experiments. They all failed — including my own fix.

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9 min read
I Spent $200 in Two Hours Watching a Coding Agent Guess

I Spent $200 in Two Hours Watching a Coding Agent Guess

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7 min read
Your MCP Client Runs the Command Before It Trusts the Server

Your MCP Client Runs the Command Before It Trusts the Server

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7 min read
Agent-readable API testing for Cursor and Windsurf: introducing API Workbench

Agent-readable API testing for Cursor and Windsurf: introducing API Workbench

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3 min read
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