Author: Tim Pinard
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Spec-driven development with AI agents, part 2: what AI review costs, and what it misses
Part 1 covered the first spec of whatif-mcp, built by AI agents using sdd-kit, my spec-driven development process for Claude Code. Part 2 covers the second spec, with a closer look at token usage, reviewer findings, and what escaped review. Two reviewer agents consumed just 9% of the input tokens. They caught implementation issues, but…
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Spec-driven development with AI agents: the numbers from one real project
AI coding agents write code fast. The hard part is knowing that what they built is what you meant, and that it keeps working when someone does something you did not expect. So I tried an experiment: run a small but real project end to end with AI agents doing almost all of the work,…
