#evaluation
Every post tagged "evaluation".
98 posts · showing 71–80
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The Sales-Research Agent and the Problem of Stale Facts
Every fact in the brief had been true. None was labelled with when — so someone opened a call congratulating a person on a role they'd left a year ago.
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Red-Teaming Your Own Agent: A Practical Injection Suite
Trying a few "ignore your instructions" prompts tests the easiest attack against the strongest defense. A real suite is a matrix of carriers, payloads, and targets — asserting on actions taken, not words said.
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When Memory Makes an Agent Worse
Every retrieved memory is content injected into the context, relevant or not. Three ways that degrades the agent — including the one where it argues with a user about their own stated preference.
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Getting an Agent to Say How Sure It Is
Ask a model how confident it is and you get a plausible number that doesn't move with difficulty. Five signals that actually correlate with being right — and the calibration check that tells you if yours is noise.
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Few-Shot Examples: When They Help an Agent and When They Hurt
Two or three similar examples is the worst case — enough to teach a template, not enough to convey the range. And the example nobody includes is the one where the right answer is to decline.
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Local Models for Agent Work: Where They Actually Fit
"Can a local model replace the frontier one?" is the wrong question. Which steps can move is the right one — and the comparison people skip is against a small hosted model, where most of the saving already lives.
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Bisecting a Bad Run: Finding the Change That Broke It
It worked last week. Six things could have changed, and they vary independently — so bisect across the dimensions first, then within one. And diff the raw arrays for what's missing, not what's different.
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Treating Prompts Like Code: Versioning, Review, and Rollback
A one-line edit in a web console changes behavior across every request, with no history and no way back. Prompts in the repo, rendered hashes in the logs, eval results in the PR — and a quarterly prune.
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The Migration Agent: 4,000 Files and What Made It Tractable
The difference between a migration agent that saves weeks and one that produces four thousand unreviewable diffs is decided before it touches a file — and it starts with building the checker, not the agent.
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Testing Multi-Agent Systems Without Losing Your Mind
Add a second agent and end-to-end assertions stop telling you anything useful. Contracts at every seam, stubs for the supervisor's unhappy paths, and integration tests that assert on graph shape and cost.