context

上下文窗口管理。适用于以下场景： - 用户询问“上下文窗口”、“上下文的使用方式”、“上下文的上限”； - 用户提到“上下文即将耗尽”、“上下文已满”； - 用户希望“精简上下文”、“清除上下文”、“优化上下文”； - 当上下文逐渐饱和，亟需加以管理时。

SKILL.md

--- frontmatter

name: context
description: |
  Context window management. Use when:
  - User asks about "context window", "context usage", "context limit"
  - User mentions "running out of context", "context full"
  - User wants to "compact", "clear context", "optimize context"
  - Context is getting full and needs management

Context Window Management

Monitor and manage Claude Code context window usage.

Check Context Usage

Run /context in Claude Code to see current usage.

Context Thresholds

Level	Usage	Action
Notice	70%	Consider handoff at next stopping point
Warning	80%	Create handoff, prepare to compact
Critical	90%	Create handoff NOW, then compact

Managing Context

Create Handoff Before Compacting

code

/create-handoff

This saves:

•Current task state
•Key decisions made
•Files modified
•Next steps

Compact Context

code

/compact

Reduces context by summarizing earlier conversation.

Resume After Compact

code

/resume-handoff

Restores context from handoff file.

Tips for Reducing Context

•Use context: fork - Skills that fork don't bloat main context
•Delegate exploration - Let agents handle research
•Clean summaries - Agents return summaries, not raw output
•Avoid large file reads - Use TLDR for token-efficient analysis

When Context is Full

•Don't panic - Your work isn't lost
•Create handoff - Save current state
•Compact - Let Claude summarize
•Resume - Pick up where you left off

Automatic Protection

The setup includes:

•Warning at 70%, 80%, 90% thresholds
•Auto-handoff before compaction (PreCompact hook)
•Session start recalls relevant learnings

Output

Report:

•Current usage: X% of context
•Recommendation: Action to take
•Next steps: What to do