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Dev tools · October 26, 2026

Sonah

Reviews what your coding agent did, not just the diff

Sonah launched on October 26, 2026 with 13 votes, #875 of 4,962 launches that month and more than 90% of that year's launches.

Visit sonah.dev ↗Sonah alternativestop 18% of October 2026

What it does

Coding agents rewrite code you never asked them to touch, and the tests still pass. Sonah reads the agent’s Claude Code or Codex session along with the code, then shows on one page: whether each ask was done, what the agent decided on its own, which of its claims its own results contradict, and what is wrong in the code. Every quote is checked word for word. Runs locally through your own Claude login. No account, no telemetry. Free for individuals.

Code is cheap. Judgment isn

Sonah reads your coding agent's session and checks the work against what you asked for: what got done, whether “done” is true, and what the agent decided on its own. Every quote it shows is checked word for word by code. Public beta for Claude Code and Codex. Runs on your machine. Free for your own projects, and for organizations where up to three people use it. Anyone can generate a thousand lines now. Deciding which of them should exist, and keeping a codebase coherent as it grows, is the work that's left. That's what review is for. If checking the agent's work takes longer than doing it, the agent saved you nothing. Bots find bugs. The expensive mistakes are decisions: the module nobody…from sonah.dev

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