What problem does it solve? Long-running coding sessions waste context window and tokens on full repository scans, repeated file reads, and unfiltered test or log output. This Skill enforces a discipline for working in the Label Mod Core repository that keeps context lean without compromising financial correctness, security, or test rigor. ## Core Features & Use Cases - Scope-First Discipline: Define the change scope in one to three sentences and ask a clarifying question instead of scanning the repo when the scope is ambiguous. - Targeted Search and Reading: Use rg on exact names, git ls-files for listings, line-range reads with sed, and \sf for current SQL function definitions instead of reading whole directories or migration chains. - Output Filtering and Test Strategy: Pipe long logs and test output to files and read only failure lines; run targeted tests first and reserve the full ops/db.sh test and pnpm check suites for the end of the task. - Model and Session Management: Suggests appropriate model and effort levels per task type, and recommends /compact or a new chat for long or off-topic sessions without acting unilaterally. - Use Case: When fixing a costing bug in the sales module, search for the exact function with rg, read only the relevant line ranges, run only db/test/costing.sql first, and run the full suite once at the end. ## Quick Start Ask the assistant to fix a bug in one specific module while following the token-efficient workflow discipline of scoped search, selective reading, and filtered test output.