# Description of Changes
Fixes one of the main causes of `any` typing left in tools, the way that
we register tool parameters in the registry. Currently, it just accepts
tool params via `any`, but instead we can explicitly change them to
`Record<string, unknown)`, so on the way back out they can more safely
be cast back to their correct type when known.
One consequence of this is that I had to redesign the way we
special-case the Convert tool, which previously was a different shape
than all the other param types. Now it's just got optional parameters on
it, which isn't quite as type-safe as before, but it does mean all tools
are a consistent shape now, which I think is worth the tradeoff.
