Regressions on MCP use: Documentation is used less

We are observing a few regressions on MCP use: It looks like the knowledge finding process goes less to the docs, and uses more of internal memory now, which is obviously low on first-class information.

Could this amendment be responsible for that?

_Originally posted by @amotl in https://github.com/crate/about/pull/62#discussion_r2240193783_

Start by reviewing the amendment in pull request #62 and the linked discussion. Compare the reported MCP knowledge-finding behavior with how documentation is currently used, then determine whether that amendment caused the regression and document the evidence and required follow-up.

Written by the indexing model from the issue text.