Token-budget discipline for large or unfamiliar codebases — prune redundant file context, build a compact codebase map instead of reading everything, and keep attention pinned to the immediate task scope. Use when starting work in an unfamiliar or large repo, when the user says context is filling up / "too many tokens" / "why did you read that whole file", when a task spans many files, or before a broad refactor or audit. Also use to produce a reusable repo map or CLAUDE.md-style orientation note.
