Goal

Remove dead code from the memory subsystem that was superseded by the SQLite memory redesign.

Context

The SQLite-backed memory system (SqliteStoreMemoryTool, SqliteFindMemoriesTool, etc.) is now the only active memory backend. The Memorizer MCP-backed and file-based memory tools are no longer registered in Program.cs and have no active code paths. MemoryConfig.Provider defaults to "sqlite" and no other provider is wired.

Files to Delete

Memorizer-backed tools (all in src/Netclaw.Actors/Memory/)

• MemorizerStoreMemoryTool.cs — previously the only subagent consumer (memory-curator), now dead
• MemorizerFindMemoriesTool.cs
• MemorizerGetMemoriesTool.cs
• MemorizerUpdateMemoryTool.cs
• MemorizerMemoryExtractor.cs

File-based memory tools

• FileMemoryStore.cs
• FileFindMemoriesTool.cs
• FileGetMemoriesTool.cs
• StoreMemoryTool.cs (file-backed variant)
• FileUpdateMemoryTool.cs
• FileMemoryExtractor.cs

Corresponding test files

• All test files for the above in src/Netclaw.Actors.Tests/

Additional Cleanup

• Remove the "files" and "memorizer" provider branches from any conditional logic in ToolIndexUpdater or context layers
• Consider whether MemoryConfig.Provider still needs to be a string, or can be simplified since only "sqlite" is supported
• Clean up MemoryIndexContextLayer states that reference FileBacked, MemorizerConnected, MemorizerDisconnected

Related

• Issue Add structured findings envelopes to SubAgentResult and parent-session acceptance flow #183, Add internal agent definition support for platform-owned subagents #184 (subagent infrastructure — the new subagent design no longer depends on MemorizerStoreMemoryTool)