Scored across 4 tools
Most tools are clearly distinct: list_files lists all files, find_files searches by filename, find_in_all_file_content searches content, and get_file_content reads a specific file. The only potential confusion is between list_files and find_files, but their descriptions clarify the difference.
All tool names use snake_case and follow a verb_noun pattern (list_files, get_file_content, find_files). One name, find_in_all_file_content, is more verbose but still consistent in style.
Four tools is a reasonable count for a read-only Obsidian Vault server. The scope is narrow but sufficient for listing, retrieving, and searching files.
The tool set covers the common read operations for a Vault: listing files, reading content, and searching by name or content. Missing write operations like create/update/delete, but for a read-only server the surface is functional.