File Reference
Domain: Memory & Context
Motivation
dsh-file-reference provides file-reference discovery and the @file mention grammar for host-backed UIs. It defines how a user names a path in a message and how that path is discovered so its content can be read into context, paired with a provider such as dsh-file-reference-local.
Concrete Example
A user types @README.md in a message; dsh-file-reference parses the mention grammar and the paired provider resolves it to a real file the agent can then read.
Analogy
Footnote references in an essay — a small marker pointing at the full source you can open.