The logbook
Archive
Daily concepts, controls, production patterns, failure modes, and the operational signal worth retaining.
An agent is a closed-loop controller, not an unusually long prompt
An AI agent can book the repair. The useful question is whether it can tell a lost reply from a failed booking.
- Knob
- `tool_choice` controls model routing, not runtime authority
- Topics
- agents · tool-use · authorization
Retrieval is a two-stage search problem: find broadly, then judge narrowly
Retrieval gives an AI assistant material to work with. Finding a similar manual is only the beginning of finding the right answer.
- Knob
- `candidate_k` is a recall budget, not a harmless quality slider
- Topics
- rag · reranking · vector-search
A loss function is a proxy, not a production contract
A training objective tells a model what to improve. It does not tell you whether a customer got a useful answer.
- Knob
- Temperature changes the distribution, not the model's judgment
- Topics
- loss-functions · temperature · inference