Claude Code Status Line 完全指南：自定义状态栏显示 Context 用量、Git 状态与费用追踪

/statusline show model name and context percentage with a progress bar
/statusline show git branch, cost and context usage
/statusline 显示模型名称、当前目录和 Context 使用百分比

/statusline delete
/statusline clear
/statusline remove it

{
  "statusLine": {
    "type": "command",
    "command": "~/.claude/statusline.sh",
    "padding": 2
  }
}

{
  "statusLine": {
    "type": "command",
    "command": "jq -r '\"[\\(.model.display_name)] \\(.context_window.used_percentage // 0)% context\"'"
  }
}

{
  "model": {
    "display_name": "claude-opus-4-6"
  },
  "workspace": {
    "current_dir": "/Users/user/myproject"
  },
  "context_window": {
    "used_tokens": 45230,
    "total_tokens": 200000,
    "used_percentage": 22.6
  },
  "session": {
    "cost_usd": 0.043,
    "duration_ms": 125000
  },
  "git": {
    "branch": "main",
    "has_changes": true
  }
}

#!/bin/bash
# ~/.claude/statusline.sh
input=$(cat)

MODEL=$(echo "$input" | jq -r '.model.display_name')
DIR=$(echo "$input" | jq -r '.workspace.current_dir')
PCT=$(echo "$input" | jq -r '.context_window.used_percentage // 0' | cut -d. -f1)

# ${DIR##*/} 只取文件夹名称
echo "[$MODEL] 📁 ${DIR##*/} | ${PCT}% context"

chmod +x ~/.claude/statusline.sh

#!/bin/bash
input=$(cat)
PCT=$(echo "$input" | jq -r '.context_window.used_percentage // 0' | cut -d. -f1)

# 生成 10 格进度条
FILLED=$(( PCT * 10 / 100 ))
EMPTY=$(( 10 - FILLED ))
BAR=$(printf '%0.s█' $(seq 1 $FILLED))$(printf '%0.s░' $(seq 1 $EMPTY))

# 根据用量着色
if [ "$PCT" -gt 80 ]; then
    COLOR="\033[31m"  # 红色
elif [ "$PCT" -gt 60 ]; then
    COLOR="\033[33m"  # 黄色
else
    COLOR="\033[32m"  # 绿色
fi

echo -e "${COLOR}${BAR}\033[0m ${PCT}% context"

#!/bin/bash
input=$(cat)
BRANCH=$(echo "$input" | jq -r '.git.branch // "no-git"')
CHANGES=$(echo "$input" | jq -r '.git.has_changes')

if [ "$CHANGES" = "true" ]; then
    GIT_STATUS="\033[33m${BRANCH}*\033[0m"
else
    GIT_STATUS="\033[32m${BRANCH}\033[0m"
fi

echo -e "🌿 ${GIT_STATUS}"

#!/bin/bash
input=$(cat)
COST=$(echo "$input" | jq -r '.session.cost_usd // 0')
DURATION_MS=$(echo "$input" | jq -r '.session.duration_ms // 0')
MINUTES=$(( DURATION_MS / 60000 ))

echo "💰 \$${COST} | ⏱ ${MINUTES}min"

#!/bin/bash
input=$(cat)

MODEL=$(echo "$input" | jq -r '.model.display_name')
DIR=$(echo "$input" | jq -r '.workspace.current_dir')
BRANCH=$(echo "$input" | jq -r '.git.branch // ""')
CHANGES=$(echo "$input" | jq -r '.git.has_changes')
PCT=$(echo "$input" | jq -r '.context_window.used_percentage // 0' | cut -d. -f1)
COST=$(echo "$input" | jq -r '.session.cost_usd // 0')

# 第一行：模型 + 目录 + Git
GIT_PART=""
if [ -n "$BRANCH" ]; then
    [ "$CHANGES" = "true" ] && GIT_PART=" 🌿 ${BRANCH}*" || GIT_PART=" 🌿 ${BRANCH}"
fi
echo "[${MODEL}] 📁 ${DIR##*/}${GIT_PART}"

# 第二行：Context 进度条 + 费用
FILLED=$(( PCT * 20 / 100 ))
EMPTY=$(( 20 - FILLED ))
BAR=$(printf '%0.s█' $(seq 1 $FILLED 2>/dev/null))$(printf '%0.s░' $(seq 1 $EMPTY 2>/dev/null))
echo "${BAR} ${PCT}% | 💰 \$${COST}"

CACHE_FILE="/tmp/claude-statusline-cache"
CACHE_TTL=10  # 秒

# 检查缓存是否还有效
if [ -f "$CACHE_FILE" ]; then
    AGE=$(( $(date +%s) - $(stat -f %m "$CACHE_FILE" 2>/dev/null || echo 0) ))
    if [ "$AGE" -lt "$CACHE_TTL" ]; then
        cat "$CACHE_FILE"
        exit 0
    fi
fi

# 重新计算并缓存
RESULT="...你的慢操作..."
echo "$RESULT" | tee "$CACHE_FILE"