200-NS-002-targeted-require-namespace

NS-002: Store/delete/retrieve fall back to 'default' + accept 'all'

Severity: Critical GitHub: #581

Root Cause

MCP/CLI/Core used namespace || 'default', silently routing entries to wrong namespace. Also accepted 'all' (search/list sentinel) as a write namespace, creating invisible entries.

Rule

Targeted ops (store, delete, retrieve) require explicit namespace. Block 'all' with clear error.

Fix

Remove fallback. Add 'namespace' to MCP schema required fields. Add runtime throw for missing/invalid namespace. CLI commands check before executing. Core functions throw on missing namespace.

Files Patched

• mcp-tools/memory-tools.js (store, delete, retrieve)
• commands/memory.js (store, delete, retrieve)
• memory/memory-initializer.js (storeEntry, deleteEntry, getEntry)

Dependencies

Depends on NS-001 (190) — NS-002 builds on the namespace discovery changes from NS-001.

Ops

14 ops in fix.py (20a-i + 21a,b,e,f,h)