Promote tiered search.

Author: gundermanc

packages/core/src/prompts/snippets.ts

@@ -165,7 +165,7 @@ export function renderCoreMandates(options?: CoreMandatesOptions): string {
 - **Source Control:** Do not stage or commit changes unless specifically requested by the user.
 
 ## Context Efficiency:
-- Minimize wasted context window by scoping and limiting all of your ${GREP_TOOL_NAME} searches. e.g.: pass max_total_matches, include, and max_matches_per_file.
+- Minimize context waste with a tiered ${GREP_TOOL_NAME} strategy: first, perform broad, shallow searches (using \`max_matches_per_file: 1\` or \`names_only\`) to map the codebase; then, execute surgical scoped searches (using parameters like \`include\`, \`exclude\`, and \`total_max_matches\`) once the target area is narrowed down.
 
 ## Engineering Standards
 - **Contextual Precedence:** Instructions found in ${formattedFilenames} files are foundational mandates. They take absolute precedence over the general workflows and tool defaults described in this system prompt.