Force agent to use CMM?

[sonicviz]

Is there any way to force the agent to always use MCC for search as the default, or is that the "wrong" way to use it?
Or have I misinterpreted how it's used by agents?

For example, here's the heuristic it came back with when I asked how it decided when to switch:

My heuristic:
Use grep_search when:
• I know (or can guess) the exact string/symbol — function name, variable, import path
• I want to find where something is used across files
• The codebase is small enough that raw text search is fast and precise
• I need current file contents (grep always reflects the live files)

Use codebase-memory-mcp when:
• The question is conceptual — "how does X work", "what calls Y", "what's the architecture of Z"
• I need a call graph or dependency trace across many files
• grep would require 5+ sequential searches to piece together a picture
• The repo has been indexed and the graph is fresh

The practical tell: If I can write the search string in 5 seconds, I use grep. If I'd need to follow a chain of "grep → read result → grep again → read result" more than 2-3 times, the MCP graph traversal is cheaper.