Field Notes From Shipping Real Code With Claude

Source: https://diwank.space/field-notes-from-shipping-real-code-with-claude Author: Diwank Singh Tomer Date: 2026-06-09

Summary

Practitioner notes from using Claude Code for production development. Honest account of what works, what fails, and what surprised the author. Complements Mitchell Hashimoto’s account with different perspective.

Key Claims

  • Claude Code is most reliable when: task scope is clearly defined, there’s existing code to reference, success criteria are verifiable.
  • Claude Code struggles with: novel architectures (no prior code to pattern-match from), ambiguous requirements, tasks with complex implicit constraints.
  • The “trust curve”: after a few sessions, you develop calibrated trust — know which outputs to verify closely and which are safe to accept.
  • Biggest surprise: Claude often proposes better approaches than the author’s initial plan — not just execution but design.
  • Biggest failure: hallucinated APIs, especially for newer or less-popular libraries.
  • Workflow that works: rough spec → Claude draft → author review → Claude refine → author verification.

Concepts