# ECHO Memory Vault

This Obsidian vault is the persistent memory substrate ("second brain") for its operator. It is read and written across Codex / CoWork sessions through the Obsidian Local REST API.

**This vault holds data, not logic.** All operating procedure — how the vault is bootstrapped, how notes are routed, the taxonomy, frontmatter conventions, and safety rules — lives in the **`echo-memory` plugin**, which is the single source of truth. There are intentionally no `CLAUDE.md` / `BOOTSTRAP.md` / `STRUCTURE.md` control docs in this vault; updating or porting ECHO means updating or installing the plugin, not editing files here.

- **Layout:** see the plugin's `references/vault-layout.md`.
- **Operating contract & safety:** see the plugin's `references/operating-contract.md`.
- **Bootstrap / repair:** see the plugin's `references/bootstrap.md`.
- **Version marker:** `_agent/echo-vault.md` records the schema version and bootstrap date.

Folders: `inbox/`, `journal/` (daily + weekly/monthly/quarterly/annual rollups), `projects/`, `areas/`, `resources/`, `decisions/`, and the agent subtree `_agent/`.
