Based on PR #2454 by @kshitijk4poor (reimplemented lean — 127 lines
vs original 715).
Type @ in the CLI input to get autocomplete suggestions for context
references:
- Static: @diff, @staged, @file:, @folder:, @git:, @url:
- @file:path and @folder:path browse the filesystem
- Bare @ or @partial shows matching files/folders from cwd
Dropped from original: .hermesignore walking, custom shell tokenizer,
PathToken dataclass, fuzzy matching, token estimates. Kept: all
user-facing functionality.