@focusmcp/refs

Cross-references — find who imports or uses a symbol, locate declarations, and trace inheritance chains.

Measured economy

Static benchmark — no LLM, no variance, reproducible:

| Tool | Native equivalent | Brick output | Savings | |---|---:|---:|---:| | refs_hierarchy | 2,678 tokens | 7 tokens | -99.7% | | refs_references | 12,930 tokens | 2,261 tokens | -82.0% | | refs_declaration | 63 tokens | 40 tokens | -35.5% |

Conditions: payload-only measurement (iso-call). Multi-turn agent dynamics not modeled. See global benchmark for methodology and full per-tool table.

Tools

| Tool | Exposed as | Description | |------|-----------|-------------| | references | refs_references | Find all files that import or reference a symbol | | implementations | refs_implementations | Find implementations of an interface or type | | declaration | refs_declaration | Find where a symbol is declared or exported | | hierarchy | refs_hierarchy | Class or interface inheritance chain |