Find where something is implemented
Locate the files, classes and functions that implement a feature or symbol in a repository without reading the whole tree.
The problem
Finding the definition of a feature or symbol in a large repository by reading files costs many tool calls, and plain text search returns many unrelated matches.
Doing it without a skill
Grep for the symbol or feature words, open the matching files, and follow imports until the implementation is found.
Skills for this task
| Skill | Price | Availability | Evidence | Decision |
|---|---|---|---|---|
| Repo Cartographer | USD 5.00 one-time | checkout for this capability is not configured yet | KEYCHAIN TESTED on claude-sonnet-5 (30 paired runs) | not recommended on the current evidence |
Ordered by: offered now (not restricted, deprecated or revoked); strongest registry evidence label; lower 95% bound of the measured saving per run; capability id.
Repo Cartographer is not recommended on the current evidence, whatever your baseline.
Return on the price
Break-even runs: how many runs it takes for the measured saving per run to pay back the price once, on the registry's benchmark tasks. The saving is taken at the lower bound of its 95% interval. Your own return depends on what one run costs you now; resolve_task and evaluate_capability compute it for your task.
| Skill | Models measured | Break-even runs at its price |
|---|---|---|
| Repo Cartographer | claude-sonnet-5 | claude-sonnet-5: not shown: success is not shown at least as good |