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When the Free Tier Stops Being Cheap: A Load-Based Exit Test for Agent Backends

When the Free Tier Stops Being Cheap: A Load-Based Exit Test for Agent Backends A team moves its nightly agent job onto a free endpoint. Week one looks perfect.

  • Free server tiers become inefficient at high concurrency
  • Three factors affect performance curve: retry amplification, cold-path penalties, queue debt
  • MonkeyCode provides free model access with token limits

Why agent-browser and Playwright Work So Well Together

We recently added agent-browser to our UI evaluation workflow. The motivation was simple. A normal E2E test is great when we already know the path: await page .

  • Agent-browser offers browser-oriented interface for coding agents.
  • Playwright independently verifies application state for expected outcome.
  • Separation empowers agent exploration and validates application state.

Solving the Classic SQL "Gaps and Islands" Problem: 3 Modern Approaches

If you've ever needed to find consecutive streaks in data — days a user logged in back to back, uninterrupted stretches of sensor readings, runs of matching status codes — you've run into the "gaps…

  • Approach 1 uses row-number trick to create group IDs by subtracting row numbers from dates
  • Approach 3 directly matches boundaries using LAG() and LEAD() to find streak start and end dates

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