An assistant’s memory that no index line names is not found by its description.
The test
A memory was written with a maximally distinctive description and planted unindexed, meaning no line in the index pointed at it. A fresh session was then started with its tools forbidden.
The session did not surface the memory. On two turns the result was “UNKNOWN”, no recalled-memory block, and the memory not in the index.
What the documentation describes
The documentation describes the index being read at the start of a session, and after that the assistant reading files with tools. It defines only one metadata field for a memory file. It describes no mechanism that recalls a memory by its own metadata.
The rule that follows
“There is no frontmatter recall.” An index line or a name in the instructions file is the only route to a memory. A description, however distinctive, does not create one.
The index header had claimed otherwise. That claim was corrected.
Limits of the claim
The test used one planted memory and one fresh session, run over two turns.