I spent three days last week doing real work on a production codebase with an agentic coding tool. Small site, live customers, money moving through it. The kind of place where a bad commit costs something.
The work went well. Three commits shipped, all verified, all live. But a pattern showed up on day one and repeated often enough that I now build my sessions around it:
The agent's summary of what it did was wrong often enough that I stopped reading summaries.
Not wrong in a dramatic way. Wrong in the quiet way that passes a skim.
Four times it happened
