Dev Tools · 8h ago
From JSON Hackery to Claude Tool Use: A Job-Search App's Cleanup
A developer's job-search tool originally relied on seven custom parsers to fix malformed JSON from Claude. Switching to Anthropic's forced tool use eliminated all parsing code by validating output against a Pydantic schema. The change cut latency and cost by removing self-repair API calls.
Meridian48 take
The story is a practical case study in how structured output APIs can eliminate brittle post-processing, but it also highlights that many developers still treat symptoms rather than using built-in constraints.
claude-apistructured-output