Verified Claude Code
Tune reasoning per task with --effort
What it does
Use low effort for simple edits (faster, cheaper) and high effort for hard problems. Applies to this session only.
How
claude --effort low -p "Add type hints to this function"
How much to trust this
| Applies to | ≥ 2.1.72 |
|---|---|
| Verified | Oct 17, 2026 · v2.1.296 · tested locally 2.1.296 的 --help 中存在；changelog 最早在 2.1.72 提到 |
| Depends on | --effort |
| Source | https://code.claude.com/docs/en/cli-reference (official_docs) |