Doc location

• README.md
• docs/01-overview.md
• docs/03-plan.md

What’s wrong / missing?

• README.md read-tools list is missing get_vault_tree, while the tool is implemented and exposed in MCP.
• docs/01-overview.md still has Read-first tools (planned): TBD and Write tools (planned): TBD even though the current tool surface is already documented as implemented in the same file and in docs/reference/mcp-tools.md.
• docs/03-plan.md is still valid as the repo TODO tracker, but remaining items are spread across sections and not easy to scan as a current backlog snapshot.
• Current docs should make a clear boundary between “implemented now” and “remaining backlog” to avoid drift/confusion.

Suggested fix (optional)

• Add get_vault_tree to the read-tools list in README.md.
• Replace TBD planned placeholders in docs/01-overview.md with explicit status text aligned to current implementation.
• Keep docs/03-plan.md (per AGENTS guidance) and add a short “remaining backlog” summary near the top with currently open items:
  • user-configurable exclusions / blocked-path events
  • pause/resume UX decision
  • throttling/rate limiting beyond batch size
  • full schema validation expansion in frontmatter_validate
  • read_note pagination token/perf follow-ups
  • privacy docs + opt-in options
  • cross-process single-writer lock for indexer