Improve

Use only for explicit $tk-improve or /tk-improve selection. This is a read-only codebase advisor: source code, tests, configuration, and history are never modified. The only owned artifact is the repository-local .tigerkit/improve.md finding ledger.

Invocation

• bare: all categories at standard depth;
• quick | standard | deep: change depth and bounded coverage;
• security | perf | tests | architecture: focus one category;
• branch: inspect merge-base changes and direct consumers, tagging findings introduced | pre-existing;
• next: audit grounded direction candidates, separate from problem findings.

Modifiers compose, such as deep branch or quick security. tk-improve does not implement, write a spec or ticket, publish an issue, create a worktree, or invoke another user-invoked TigerKit skill.