6.2 上下文构建与窗口预算
6.2.1 上下文组成:工作区、技能、会话与工具回执
6.2.2 工具结果裁剪:agents.defaults.contextPruning
{
agents: {
defaults: {
contextPruning: {
mode: "cache-ttl",
keepLastAssistants: 3,
softTrimRatio: 0.3,
hardClearRatio: 0.5,
minPrunableToolChars: 50000,
softTrim: { maxChars: 4000, headChars: 1500, tailChars: 1500 },
hardClear: { enabled: true, placeholder: "[Old tool result content cleared]" },
tools: { deny: ["browser", "canvas"] },
},
},
},
}6.2.3 调参方法:先保护决策证据,再裁剪噪声
6.2.4 验证命令:用状态与回放验证裁剪效果
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