AgentSkillsCN

compacting-context-strategically

在关键的工作流程节点适时建议采用手动/精简策略,以在任务各阶段间有效保留上下文。适用于接近上下文上限、完成重大里程碑,或在上下文即将发生转变前使用。触发条件包括高工具调用次数、规划阶段结束后,或在重大实施工作开始前使用。

SKILL.md
--- frontmatter
name: compacting-context-strategically
description: Suggests manual /compact at strategic workflow points to preserve context through task phases. Use when approaching context limits, completing major milestones, or before context shifts. Triggers include high tool call counts, after planning phases, or before major implementation work.
allowed-tools: Read
user-invocable: true

Strategic Compact Skill

Suggests manual /compact at strategic points in your workflow rather than relying on arbitrary auto-compaction.

Why Strategic Compaction?

Auto-compaction triggers at arbitrary points:

  • Often mid-task, losing important context
  • No awareness of logical task boundaries
  • Can interrupt complex multi-step operations

Strategic compaction at logical boundaries:

  • After exploration, before execution - Compact research context, keep implementation plan
  • After completing a milestone - Fresh start for next phase
  • Before major context shifts - Clear exploration context before different task

How It Works

The suggest-compact.sh script runs on PreToolUse (Edit/Write) and:

  1. Tracks tool calls - Counts tool invocations in session
  2. Threshold detection - Suggests at configurable threshold (default: 50 calls)
  3. Periodic reminders - Reminds every 25 calls after threshold

Hook Setup

Add to your ~/.claude/settings.json:

json
{
  "hooks": {
    "PreToolUse": [{
      "matcher": "tool == \"Edit\" || tool == \"Write\"",
      "hooks": [{
        "type": "command",
        "command": "~/.claude/skills/strategic-compact/suggest-compact.sh"
      }]
    }]
  }
}

Configuration

Environment variables:

  • COMPACT_THRESHOLD - Tool calls before first suggestion (default: 50)

Best Practices

  1. Compact after planning - Once plan is finalized, compact to start fresh
  2. Compact after debugging - Clear error-resolution context before continuing
  3. Don't compact mid-implementation - Preserve context for related changes
  4. Read the suggestion - The hook tells you when, you decide if

Related

  • The Longform Guide - Token optimization section
  • Memory persistence hooks - For state that survives compaction