save

# mn:save — Memory Routing Cascade > **Invocation marker (both runtimes):** begin your reply with the exact line `🧠 mn:save (mnemo) → running` — the user-visible confirmation that this skill actually loaded. Emit it once per invocation, before any other output. ## Portable paths Resolve `<mnemo-root>` once to the absolute plugin root before reading bundled files or running bundled scripts. In Claude Code, use `${CLAUDE_PLUGIN_ROOT}`; in Codex, derive it from this loaded `SKILL.md` path (skill directory → `skills/` → plugin root). Replace `<mnemo-root>` with that quoted absolute path in every command — never execute the placeholder literally and never hunt versioned cache directories. When another mnemo skill must run, use the runtime-native path: Claude Code invokes `mn:<skill>` through its Skill tool; Codex reads `<mnemo-root>/skills/<skill>/SKILL.md` completely and follows it with the prepared input. For user-facing explicit syntax, render `/mn:<skill>` in Claude Code and `$mnemo:<skill>` in Codex. Save information to multiple memory backends with graceful degradation. Each backend is tried independently — if one fails, others still work. ## Prerequisites & config Obsidian is preferred but not required (skill degrades gracefully). Config at `~/.mnemo/config.json` — full schema including `cascade.*` toggles in `<mnemo-root>/references/config-schema.md`. ## Workflow ### Step 0: Classify the Input **First — is this worth saving at all?** (Especially when saving proa...