用“先约束再执行”提示词模板压缩 OpenClaw 成本

• You can access OpenClaw session usage data (session_status / status card).
• You have repeatable task types (e.g., report drafting, triage, search) for A/B comparison.

1. Capture baseline: run 5-10 representative tasks and record token/cost per task.
2. Introduce a constraint-first prompt block: target output length, tool budget, and stop conditions before main task text.
3. For low-risk tasks, prefer concise mode and avoid unnecessary multi-tool fanout.
4. Re-run the same task set and compare median token/cost; keep only templates that pass quality threshold.
5. Schedule weekly template review to prevent prompt bloat and drift.

• The reported 69% reduction is user-specific and may not generalize（需验证）。
• Over-compressing prompts can harm reasoning quality on complex tasks.

This tip is aggregated from community/public sources and preserved with attribution.