{"id":97900,"date":"2026-08-30T17:41:02","date_gmt":"2026-08-30T09:41:02","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/97900.html"},"modified":"2026-08-30T17:41:02","modified_gmt":"2026-08-30T09:41:02","slug":"%e4%b8%8a%e4%b8%8b%e6%96%87%e5%8e%8b%e7%bc%a9%e5%8f%8c%e5%88%83%e5%89%91-summarization%e4%b8%8econtextediting%e4%b8%ad%e9%97%b4%e4%bb%b6%e5%ae%9e%e6%88%98","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/97900.html","title":{"rendered":"\u4e0a\u4e0b\u6587\u538b\u7f29\u53cc\u5203\u5251-Summarization\u4e0eContextEditing\u4e2d\u95f4\u4ef6\u5b9e\u6218"},"content":{"rendered":"

\u4e00\u3001\u4ece\u4e00\u4e2a\u5931\u63a7\u7684\u8d26\u5355\u8bf4\u8d77<\/h3>\n

\u8bbe\u60f3\u4e00\u4e2a\u771f\u5b9e\u573a\u666f：\u4f60\u7ed9\u516c\u53f8\u505a\u4e86\u4e00\u4e2a\u5ba2\u670d Agent，\u4e0a\u5348\u4e0a\u7ebf，\u4e0b\u5348\u8d22\u52a1\u5c31\u6765\u627e\u4f60\u4e86\u2014\u2014API \u8d26\u5355\u6bd4\u9884\u671f\u9ad8\u4e86\u4e00\u4e2a\u6570\u91cf\u7ea7\u3002\u4f60\u6253\u5f00\u65e5\u5fd7\u4e00\u770b，\u95ee\u9898\u5f88\u76f4\u89c2：\u4f1a\u8bdd\u8fdb\u884c\u5230\u7b2c\u4e94\u5341\u8f6e\u65f6，\u6bcf\u4e00\u6b21\u8bf7\u6c42\u90fd\u8981\u628a\u524d\u9762\u56db\u5341\u4e5d\u8f6e\u7684\u5b8c\u6574\u5386\u53f2\u539f\u5c01\u4e0d\u52a8\u5730\u585e\u7ed9\u6a21\u578b\u3002\u5386\u53f2\u8d8a\u6eda\u8d8a\u957f，\u8f93\u5165 token \u50cf\u6eda\u96ea\u7403\u4e00\u6837\u8d8a\u6eda\u8d8a\u5927，\u54ea\u6015\u4f60\u7684\u6a21\u578b\u4e0a\u4e0b\u6587\u7a97\u53e3\u6709 128K，\u4e5f\u67b6\u4e0d\u4f4f\u8fd9\u79cd\u7ebf\u6027\u81a8\u80c0\u7684\u6d88\u8017\u65b9\u5f0f\u3002<\/p>\n

\u66f4\u9690\u853d\u7684\u662f\u5de5\u5177\u8c03\u7528\u5e26\u6765\u7684\u81a8\u80c0\u3002Agent \u6bcf\u8c03\u7528\u4e00\u6b21\u5de5\u5177，\u6d88\u606f\u5217\u8868\u91cc\u5c31\u4f1a\u6c89\u6dc0\u4e0b\u4e09\u6837\u4e1c\u897f：AI \u7684 tool_calls \u51b3\u7b56\u3001\u5de5\u5177\u8fd4\u56de\u7684\u5b8c\u6574\u7ed3\u679c\u3001AI \u57fa\u4e8e\u7ed3\u679c\u7684\u56de\u590d\u3002\u5982\u679c\u4f60\u7684\u5de5\u5177\u662f\u722c\u866b\u3001\u4ee3\u7801\u6267\u884c\u5668\u6216\u8005\u8fd4\u56de\u5927\u6bb5 JSON \u7684\u63a5\u53e3，\u4e00\u6b21\u8c03\u7528\u5c31\u53ef\u80fd\u585e\u8fdb\u53bb\u51e0\u5343 token \u7684"\u539f\u59cb\u7d20\u6750"\u3002\u800c\u8fd9\u4e9b\u7d20\u6750\u5728\u5341\u8f6e\u5bf9\u8bdd\u4e4b\u540e，\u6a21\u578b\u5927\u6982\u7387\u5df2\u7ecf\u7528\u4e0d\u4e0a\u4e86\u2014\u2014\u5b83\u4eec\u53ea\u662f\u5b89\u5b89\u9759\u9759\u8eba\u5728\u90a3\u91cc，\u6bcf\u8f6e\u90fd\u91cd\u590d\u8ba1\u8d39\u4e00\u6b21\u3002<\/p>\n

\u8fd9\u5c31\u662f\u4e0a\u4e0b\u6587\u7ba1\u7406\u7684"\u53cc\u5203\u5251"：\u5386\u53f2\u4fdd\u7559\u5f97\u8d8a\u5168，\u6a21\u578b\u8bb0\u6027\u8d8a\u597d\u3001\u56de\u7b54\u8d8a\u8fde\u8d2f，\u4f46\u8d39\u7528\u8d8a\u9ad8\u3001\u8d8a\u5bb9\u6613\u649e\u4e0a\u4e0b\u6587\u7a97\u53e3\u4e0a\u9650；\u88c1\u5f97\u8d8a\u72e0，\u8d26\u5355\u8d8a\u597d\u770b，\u4f46\u6a21\u578b\u4f1a"\u5931\u5fc6"，\u7528\u6237\u4f53\u9a8c\u76f4\u7ebf\u4e0b\u6ed1\u3002\u597d\u5728 LangChain 1.x \u7684\u4e2d\u95f4\u4ef6\u4f53\u7cfb\u7ed9\u4e86\u6211\u4eec\u4e24\u4e2a\u5f00\u7bb1\u5373\u7528\u7684\u624b\u672f\u5200\u2014\u2014SummarizationMiddleware（\u628a\u65e7\u5386\u53f2\u538b\u7f29\u6210\u6458\u8981）\u548c ContextEditingMiddleware（\u628a\u8fc7\u671f\u7684\u5de5\u5177\u8c03\u7528\u75d5\u8ff9\u6e05\u7406\u6389）\u3002\u672c\u6587\u5c31\u628a\u8fd9\u4e24\u628a\u5200\u7684\u6784\u9020\u3001\u7528\u6cd5\u548c\u9002\u7528\u573a\u666f\u5f7b\u5e95\u8bb2\u6e05\u695a\u3002<\/p>\n

\u672c\u6587\u89e3\u51b3\u4ec0\u4e48：SummarizationMiddleware \u516d\u4e2a\u6838\u5fc3\u53c2\u6570（model\/trigger\/keep\/token_counter\/summary_prompt\/trim_token_to_summarize）\u7684\u8bed\u4e49\u4e0e\u5751\u4f4d，\u4e24\u4e2a\u5b8c\u6574\u53ef\u8fd0\u884c\u793a\u4f8b\u7684\u8f93\u51fa\u89e3\u8bfb，ContextEditingMiddleware \u6e05\u7406\u5de5\u5177\u75d5\u8ff9\u7684\u601d\u8def\u4e0e\u5b9e\u6d4b\u5bf9\u6bd4，\u4ee5\u53ca"\u6458\u8981\/\u88c1\u526a\/\u6e05\u7406"\u4e09\u8005\u7684\u9009\u578b\u5224\u65ad\u3002<\/p>\n

\u672c\u6587\u4e0d\u5c55\u5f00\u4ec0\u4e48：\u591a\u8f6e\u8bb0\u5fc6\u7684\u957f\u671f\u5b58\u50a8（\u8de8\u4f1a\u8bdd\u8bb0\u5fc6\u5e93）\u3001\u624b\u52a8\u7f16\u5199 before_model \u4e2d\u95f4\u4ef6\u505a\u6d88\u606f\u6cbb\u7406\u7684\u5b8c\u6574\u6559\u7a0b\u3001\u4ee5\u53ca\u6a21\u578b\u4e0a\u4e0b\u6587\u7a97\u53e3\u672c\u8eab\u7684\u5e95\u5c42\u673a\u5236\u3002<\/p>\n

\u8bfb\u5b8c\u80fd\u5b8c\u6210\u4ec0\u4e48：\u4f60\u80fd\u4e3a\u4efb\u610f Agent \u914d\u7f6e\u4e00\u5957\u81ea\u52a8\u6458\u8981\u7b56\u7565（\u542b\u89e6\u53d1\u9608\u503c\u8c03\u4f18），\u80fd\u7528 ContextEditingMiddleware \u524a\u6389\u5de5\u5177\u8c03\u7528\u7684 token \u5f00\u9500，\u5e76\u4e14\u9762\u5bf9"\u957f\u4f1a\u8bdd"\u65f6\u77e5\u9053\u8be5\u9009\u6458\u8981\u3001\u88c1\u526a\u8fd8\u662f\u6e05\u7406\u3002<\/p>\n

\u4e8c\u3001\u538b\u7f29\u7684\u603b\u4f53\u601d\u8def：\u6458\u8981\u662f\u600e\u4e48\u53d1\u751f\u7684<\/h3>\n

\u5728\u52a8\u624b\u5199\u4ee3\u7801\u4e4b\u524d，\u5148\u5efa\u7acb\u4e00\u4e2a\u6e05\u6670\u7684\u5fc3\u667a\u6a21\u578b\u3002SummarizationMiddleware \u7684\u5de5\u4f5c\u6d41\u7a0b\u53ef\u4ee5\u6982\u62ec\u4e3a\u4e09\u6b65：\u76d1\u63a7\u3001\u89e6\u53d1\u3001\u66ff\u6362\u3002\u5b83\u6302\u5728 Agent \u7684"\u8c03\u7528\u6a21\u578b\u524d"\u73af\u8282，\u6bcf\u6b21\u8bf7\u6c42\u6a21\u578b\u4e4b\u524d\u5148\u68c0\u67e5\u5f53\u524d\u6d88\u606f\u5217\u8868，\u4e00\u65e6\u8fbe\u5230\u89e6\u53d1\u6761\u4ef6，\u5c31\u8c03\u7528\u4e00\u4e2a\u6307\u5b9a\u7684\u6a21\u578b\u628a\u65e7\u5386\u53f2\u538b\u6210\u4e00\u6bb5\u6458\u8981\u6587\u672c，\u7136\u540e\u7528"\u6458\u8981 + \u4fdd\u7559\u7684\u8fd1\u671f\u6d88\u606f"\u66ff\u6362\u6389\u539f\u6765\u7684\u6d88\u606f\u5217\u8868\u3002<\/p>\n

#mermaid-svg-F3Ct0Q6yPYVfVsB5{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;fill:#333;}@keyframes edge-animation-frame{from{stroke-dashoffset:0;}}@keyframes dash{to{stroke-dashoffset:0;}}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .edge-animation-slow{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 50s linear infinite;stroke-linecap:round;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .edge-animation-fast{stroke-dasharray:9,5!important;stroke-dashoffset:900;animation:dash 20s linear infinite;stroke-linecap:round;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .error-icon{fill:#552222;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .error-text{fill:#552222;stroke:#552222;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .edge-thickness-normal{stroke-width:1px;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .edge-thickness-thick{stroke-width:3.5px;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .edge-pattern-solid{stroke-dasharray:0;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .edge-thickness-invisible{stroke-width:0;fill:none;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .edge-pattern-dashed{stroke-dasharray:3;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .edge-pattern-dotted{stroke-dasharray:2;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .marker{fill:#333333;stroke:#333333;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .marker.cross{stroke:#333333;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 svg{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:16px;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 p{margin:0;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .label{font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;color:#333;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .cluster-label text{fill:#333;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .cluster-label span{color:#333;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .cluster-label span p{background-color:transparent;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .label text,#mermaid-svg-F3Ct0Q6yPYVfVsB5 span{fill:#333;color:#333;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .node rect,#mermaid-svg-F3Ct0Q6yPYVfVsB5 .node circle,#mermaid-svg-F3Ct0Q6yPYVfVsB5 .node ellipse,#mermaid-svg-F3Ct0Q6yPYVfVsB5 .node polygon,#mermaid-svg-F3Ct0Q6yPYVfVsB5 .node path{fill:#ECECFF;stroke:#9370DB;stroke-width:1px;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .rough-node .label text,#mermaid-svg-F3Ct0Q6yPYVfVsB5 .node .label text,#mermaid-svg-F3Ct0Q6yPYVfVsB5 .image-shape .label,#mermaid-svg-F3Ct0Q6yPYVfVsB5 .icon-shape .label{text-anchor:middle;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .node .katex path{fill:#000;stroke:#000;stroke-width:1px;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .rough-node .label,#mermaid-svg-F3Ct0Q6yPYVfVsB5 .node .label,#mermaid-svg-F3Ct0Q6yPYVfVsB5 .image-shape .label,#mermaid-svg-F3Ct0Q6yPYVfVsB5 .icon-shape .label{text-align:center;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .node.clickable{cursor:pointer;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .root .anchor path{fill:#333333!important;stroke-width:0;stroke:#333333;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .arrowheadPath{fill:#333333;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .edgePath .path{stroke:#333333;stroke-width:2.0px;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .flowchart-link{stroke:#333333;fill:none;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .edgeLabel{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .edgeLabel p{background-color:rgba(232,232,232, 0.8);}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .edgeLabel rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .labelBkg{background-color:rgba(232, 232, 232, 0.5);}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .cluster rect{fill:#ffffde;stroke:#aaaa33;stroke-width:1px;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .cluster text{fill:#333;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .cluster span{color:#333;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 div.mermaidTooltip{position:absolute;text-align:center;max-width:200px;padding:2px;font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;font-size:12px;background:hsl(80, 100%, 96.2745098039%);border:1px solid #aaaa33;border-radius:2px;pointer-events:none;z-index:100;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .flowchartTitleText{text-anchor:middle;font-size:18px;fill:#333;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 rect.text{fill:none;stroke-width:0;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .icon-shape,#mermaid-svg-F3Ct0Q6yPYVfVsB5 .image-shape{background-color:rgba(232,232,232, 0.8);text-align:center;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .icon-shape p,#mermaid-svg-F3Ct0Q6yPYVfVsB5 .image-shape p{background-color:rgba(232,232,232, 0.8);padding:2px;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .icon-shape .label rect,#mermaid-svg-F3Ct0Q6yPYVfVsB5 .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-F3Ct0Q6yPYVfVsB5 :root{–mermaid-font-family:\\”trebuchet ms\\”,verdana,arial,sans-serif;}<\/span><\/span><\/p>\n

\u5426<\/p>\n

<\/span><\/p>\n

\u662f<\/p>\n

<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n

Agent \u6536\u5230\u65b0\u8bf7\u6c42<\/p>\n

<\/span><\/p>\n

\u4e2d\u95f4\u4ef6\u68c0\u67e5\u5f53\u524d\u6d88\u606f\u5217\u8868<\/p>\n

<\/span><\/p>\n

\u662f\u5426\u8fbe\u5230 trigger \u89e6\u53d1\u6761\u4ef6?<\/p>\n

<\/span><\/p>\n

\u76f4\u63a5\u628a\u6d88\u606f\u5217\u8868\u4f20\u7ed9\u5927\u6a21\u578b<\/p>\n

<\/span><\/p>\n

\u6309 trim_token_to_summarize\u622a\u53d6\u5f85\u6458\u8981\u7684\u5386\u53f2\u6d88\u606f<\/p>\n

<\/span><\/p>\n

\u8c03\u7528 summary_prompt \u7ec4\u88c5\u6458\u8981\u8bf7\u6c42{messages} \u5360\u4f4d\u7b26\u6ce8\u5165\u5386\u53f2<\/p>\n

<\/span><\/p>\n

\u6458\u8981\u6a21\u578b\u751f\u6210\u6458\u8981\u6587\u672c<\/p>\n

<\/span><\/p>\n

\u7528\u6458\u8981\u751f\u6210 HumanMessage\u653e\u5230\u6d88\u606f\u5217\u8868\u5934\u90e8<\/p>\n

<\/span><\/p>\n

\u6309 keep \u6761\u4ef6\u4fdd\u7559\u8fd1\u671f\u539f\u59cb\u6d88\u606f\u62fc\u63a5\u5728\u6458\u8981\u4e4b\u540e<\/p>\n

<\/span><\/p>\n

\u66ff\u6362\u540e\u7684\u65b0\u6d88\u606f\u5217\u8868= \u6458\u8981 + \u4fdd\u7559\u6d88\u606f + \u65b0\u8f93\u5165<\/p>\n

<\/span><\/p>\n

\u5927\u6a21\u578b\u57fa\u4e8e\u538b\u7f29\u540e\u7684\u4e0a\u4e0b\u6587\u56de\u590d<\/p>\n

<\/span><\/p>\n

\u8fd9\u91cc\u6709\u4e00\u4e2a\u5173\u952e\u7ec6\u8282：\u6458\u8981\u7ed3\u679c\u4e0d\u662f\u7b80\u5355\u7684\u5b57\u7b26\u4e32，\u800c\u662f\u4e00\u6761\u5b8c\u6574\u7684 HumanMessage，\u4ee5"Here is a summary of the conversation to date"\u8fd9\u7c7b\u683c\u5f0f\u5f00\u5934，\u653e\u5728\u6d88\u606f\u5217\u8868\u7684\u6700\u524d\u9762\u3002\u540e\u9762\u7684\u7ae0\u8282\u6211\u4eec\u4f1a\u4ece\u5b9e\u9645\u8f93\u51fa\u91cc\u770b\u5230\u5b83\u7684\u6837\u5b50\u3002<\/p>\n

\u4e09\u3001SummarizationMiddleware：\u516d\u4e2a\u53c2\u6570\u9010\u4e00\u8bb2\u900f<\/h3>\n

3.1 model：\u8c01\u6765\u6267\u884c\u6458\u8981<\/h4>\n

\u7b2c\u4e00\u4e2a\u53c2\u6570 model \u6307\u5b9a\u7528\u54ea\u4e2a\u6a21\u578b\u505a\u6458\u8981\u3002\u5b83\u65e2\u53ef\u4ee5\u662f\u6a21\u578b\u540d\u79f0\u5b57\u7b26\u4e32，\u4e5f\u53ef\u4ee5\u662f\u521d\u59cb\u5316\u597d\u7684\u6a21\u578b\u5bf9\u8c61；\u5982\u679c\u4f20\u5b57\u7b26\u4e32，\u5e95\u5c42\u4f1a\u81ea\u52a8\u8c03\u7528 init_chat_model \u5e2e\u4f60\u521d\u59cb\u5316\u3002<\/p>\n

\u5b9e\u6218\u4e2d\u6709\u4e24\u4e2a\u5efa\u8bae：\u7b2c\u4e00，\u6458\u8981\u6a21\u578b\u548c\u4e3b\u6a21\u578b\u53ef\u4ee5\u89e3\u8026\u2014\u2014\u4e3b\u5bf9\u8bdd\u7528\u80fd\u529b\u5f3a\u7684\u6a21\u578b，\u6458\u8981\u8fd9\u79cd"\u603b\u7ed3\u5f52\u7eb3"\u4efb\u52a1\u7528\u4e00\u4e2a\u4fbf\u5b9c\u7684\u5c0f\u6a21\u578b（\u6bd4\u5982 gpt-4o-mini \u6216 deepseek \u7684 flash \u7cfb\u5217）\u5c31\u591f\u4e86，\u80fd\u663e\u8457\u644a\u8584\u6458\u8981\u672c\u8eab\u7684\u6210\u672c；\u7b2c\u4e8c，\u6458\u8981\u4e5f\u662f\u4e00\u6b21\u771f\u5b9e\u7684\u6a21\u578b\u8c03\u7528，\u4e5f\u4f1a\u8ba1\u8d39，\u53ea\u662f\u5b83\u628a"\u6bcf\u8f6e\u91cd\u590d\u8ba1\u8d39\u7684\u5b8c\u6574\u5386\u53f2"\u6362\u6210\u4e86"\u5076\u5c14\u89e6\u53d1\u4e00\u6b21\u7684\u538b\u7f29\u8c03\u7528"，\u603b\u4f53\u662f\u5212\u7b97\u7684\u3002<\/p>\n

3.2 trigger：\u4ec0\u4e48\u65f6\u5019\u89e6\u53d1\u6458\u8981<\/h4>\n

trigger \u662f\u6458\u8981\u4e2d\u95f4\u4ef6\u7684\u6838\u5fc3，\u5b83\u5b9a\u4e49"\u591a\u957f\u7684\u5386\u53f2\u624d\u7b97\u592a\u957f"\u3002\u5b83\u662f\u4e00\u4e2a\u5217\u8868，\u6bcf\u4e2a\u5143\u7d20\u662f\u4e00\u4e2a\u6761\u4ef6\u5143\u7ec4，\u4efb\u610f\u4e00\u4e2a\u6761\u4ef6\u6ee1\u8db3\u5c31\u4f1a\u89e6\u53d1\u6458\u8981（OR \u8bed\u4e49）\u3002\u652f\u6301\u4e09\u79cd\u5ea6\u91cf\u65b9\u5f0f：<\/p>\n\n\u5ea6\u91cf\u65b9\u5f0f\u5199\u6cd5\u793a\u4f8b\u542b\u4e49<\/tr>\n\n\n\n\n
tokens<\/td>\n("tokens", 4000)<\/td>\n\u5386\u53f2\u6d88\u606f\u7684\u7d2f\u8ba1 token \u6570\u8fbe\u5230 4000 \u89e6\u53d1<\/td>\n<\/tr>\n
messages<\/td>\n("messages", 30)<\/td>\n\u5386\u53f2\u6d88\u606f\u6761\u6570\u8fbe\u5230 30 \u6761\u89e6\u53d1<\/td>\n<\/tr>\n
fraction<\/td>\n("fraction", 0.7)<\/td>\n\u5386\u53f2 token \u6570\u8fbe\u5230\u6a21\u578b max_input_tokens \u00d7 0.7 \u89e6\u53d1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e09\u79cd\u5ea6\u91cf\u5404\u6709\u9002\u7528\u573a\u666f：tokens \u6700\u7cbe\u786e，\u76f4\u63a5\u5bf9\u5e94\u8ba1\u8d39\u548c\u7a97\u53e3\u9650\u5236，\u4f46\u9608\u503c\u8981\u4eba\u5de5\u4f30；messages \u6700\u76f4\u89c2，\u9002\u5408\u6d88\u606f\u957f\u5ea6\u6bd4\u8f83\u5747\u5300\u7684\u5bf9\u8bdd；fraction \u6700"\u81ea\u9002\u5e94"，\u5b83\u6309\u6a21\u578b\u4e0a\u4e0b\u6587\u7a97\u53e3\u7684\u6bd4\u4f8b\u52a8\u6001\u8ba1\u7b97，\u6362\u6a21\u578b\u4e0d\u7528\u6539\u9608\u503c\u3002<\/p>\n

\u9664\u4e86\u5217\u8868\u5f62\u5f0f，trigger \u8fd8\u652f\u6301\u5b57\u5178\u5f62\u5f0f（TriggerClause）：{"tokens": 4000, "messages": 30}，\u5b57\u5178\u5185\u591a\u4e2a\u6761\u4ef6\u662f AND \u8bed\u4e49\u2014\u2014\u6240\u6709\u6761\u4ef6\u540c\u65f6\u6ee1\u8db3\u624d\u89e6\u53d1\u3002\u7ed3\u5408\u4e00\u4e0b\u5c31\u662f：\u5217\u8868\u5143\u7d20\u4e4b\u95f4\u662f"\u6216"，\u5b57\u5178\u5b57\u6bb5\u4e4b\u95f4\u662f"\u4e0e"\u3002\u6bd4\u5982\u4f60\u60f3\u8868\u8fbe"token \u5f88\u957f\u4e14\u6d88\u606f\u4e5f\u5f88\u591a\u624d\u538b\u7f29"，\u5c31\u7528\u5b57\u5178；\u60f3\u8868\u8fbe"\u968f\u4fbf\u54ea\u4e2a\u8d85\u4e86\u90fd\u538b"，\u5c31\u7528\u5217\u8868\u3002\u8fd9\u4e00\u70b9\u5b98\u65b9\u6587\u6863\u6709\u660e\u786e\u8bf4\u660e\u3002<\/p>\n

3.3 Deepseek profile \u4e3a\u7a7a\u7684\u5751<\/h4>\n

\u8fd9\u91cc\u5fc5\u987b\u5355\u72ec\u62ce\u51fa\u4e00\u4e2a\u5751：fraction \u5ea6\u91cf\u8981\u6c42\u6a21\u578b\u7684 profile \u91cc\u5305\u542b max_input_tokens\u3002\u6846\u67b6\u9760\u8fd9\u4e2a\u503c\u6765\u8ba1\u7b97"\u7a97\u53e3 \u00d7 \u6bd4\u4f8b"\u7684\u9608\u503c\u3002\u800c Deepseek \u5e73\u53f0\u7684\u6a21\u578b profile \u662f\u7a7a\u7684\u2014\u2014max_input_tokens \u62ff\u4e0d\u5230\u503c，\u6b64\u65f6\u53ea\u8981\u4f60\u7528\u4e86 fraction \u6761\u4ef6\u5c31\u4f1a\u76f4\u63a5\u62a5\u9519\u3002<\/p>\n

\u89e3\u51b3\u529e\u6cd5\u662f\u521d\u59cb\u5316\u6a21\u578b\u65f6\u624b\u52a8\u8865\u4e0a\u8fd9\u4e2a\u914d\u7f6e\u3002\u6bd4\u5982 Deepseek-V3.2 \u7684\u4e0a\u4e0b\u6587\u957f\u5ea6\u662f 128K，\u5c31\u663e\u5f0f\u4f20\u5165 profile={"max_input_tokens": 128_000}\u3002\u8fd9\u4e2a\u95ee\u9898\u4e0d\u53ea\u5f71\u54cd Deepseek，\u4efb\u4f55 profile \u4fe1\u606f\u4e0d\u5168\u7684\u6a21\u578b（\u5305\u62ec\u5404\u79cd\u7b2c\u4e09\u65b9 OpenAI \u517c\u5bb9\u7aef\u70b9）\u90fd\u9002\u7528\u540c\u6837\u7684\u8865\u6551\u65b9\u5f0f：\u624b\u52a8\u58f0\u660e，\u522b\u6307\u671b\u6846\u67b6\u731c\u3002\u540e\u6587\u7684\u793a\u4f8b\u4ee3\u7801\u91cc\u4f60\u4f1a\u53cd\u590d\u770b\u5230 custom_profile \u8fd9\u4e2a\u5199\u6cd5，\u539f\u56e0\u5c31\u5728\u8fd9\u91cc\u3002<\/p>\n

3.4 keep：\u6458\u8981\u65f6\u4fdd\u7559\u54ea\u4e9b"\u8fd1\u671f\u539f\u6587"<\/h4>\n

\u6458\u8981\u4f1a\u4e22\u7ec6\u8282，\u6240\u4ee5\u4e2d\u95f4\u4ef6\u5141\u8bb8\u4f60\u5728\u538b\u7f29\u65e7\u5386\u53f2\u7684\u540c\u65f6，\u628a\u6700\u8fd1\u7684\u4e00\u5c0f\u6bb5\u5bf9\u8bdd\u539f\u6837\u4fdd\u7559\u2014\u2014\u8fd9\u5c31\u662f keep \u53c2\u6570\u3002\u5b83\u652f\u6301 ("tokens", n)\u3001("messages", n)\u3001("fraction", f) \u4e09\u79cd\u6761\u4ef6\u3002<\/p>\n

\u6ce8\u610f keep \u548c trigger \u6709\u4e00\u4e2a\u5fae\u5999\u5dee\u522b：trigger \u662f\u5217\u8868（\u591a\u4e2a\u6761\u4ef6\u4efb\u4e00\u6ee1\u8db3），keep \u540c\u4e00\u65f6\u95f4\u53ea\u63a5\u6536\u4e00\u79cd\u6761\u4ef6\u3002\u8bed\u4e49\u4e0a\u4e5f\u5408\u7406\u2014\u2014"\u4ec0\u4e48\u65f6\u5019\u89e6\u53d1"\u53ef\u4ee5\u662f\u591a\u6761\u4ef6\u6216\u903b\u8f91，\u4f46"\u4fdd\u7559\u591a\u5c11"\u5fc5\u987b\u662f\u552f\u4e00\u660e\u786e\u7684\u3002\u5b9e\u6218\u4e2d ("messages", 2) \u5230 ("messages", 6) \u662f\u5e38\u89c1\u533a\u95f4：\u4fdd\u7559\u592a\u5c11，\u6a21\u578b\u5bf9"\u521a\u624d\u8bf4\u4e86\u4ec0\u4e48"\u6ca1\u6709\u77ed\u671f\u8bb0\u5fc6，\u56de\u7b54\u5bb9\u6613\u524d\u8a00\u4e0d\u642d\u540e\u8bed；\u4fdd\u7559\u592a\u591a，\u538b\u7f29\u6548\u679c\u6253\u6298\u3002<\/p>\n

3.5 token_counter：token \u6570\u662f\u600e\u4e48\u6570\u51fa\u6765\u7684<\/h4>\n

trigger \u548c keep \u91cc\u7684 tokens \u5ea6\u91cf，\u90fd\u9700\u8981\u5148\u56de\u7b54\u4e00\u4e2a\u95ee\u9898：token \u6570\u600e\u4e48\u7b97？\u9ed8\u8ba4\u7b54\u6848\u662f LangChain \u63d0\u4f9b\u7684 count_tokens_approximately\u2014\u2014\u4e00\u4e2a\u7eaf\u4f30\u7b97\u51fd\u6570，\u4e0d\u9700\u8981\u771f\u7684\u8c03\u7528\u6a21\u578b\u7684 tokenizer\u3002<\/p>\n

\u5b83\u7684\u5927\u81f4\u539f\u7406\u662f：\u5bf9\u7eaf\u6587\u672c\u6d88\u606f，\u5148\u7edf\u8ba1\u5b57\u7b26\u6570（len(\u5b57\u7b26\u4e32)），\u518d\u9664\u4ee5"\u6bcf\u4e2a token \u5927\u81f4\u5bf9\u5e94\u7684\u5b57\u7b26\u6570"\u6362\u7b97\u6210\u7c97\u7565 token \u6570，\u6700\u540e\u52a0\u4e0a\u6bcf\u6761\u6d88\u606f\u7684\u56fa\u5b9a\u989d\u5916\u5f00\u9500\u3002\u8fd9\u4e2a\u8bbe\u8ba1\u7684\u53d6\u820d\u5f88\u6e05\u6670：\u591f\u5feb\u3001\u96f6\u6210\u672c\u3001\u79bb\u7ebf\u53ef\u7528，\u4f46\u4e0d\u662f\u7cbe\u786e\u503c\u3002\u5bf9\u4e2d\u6587\u6765\u8bf4\u4f30\u7b97\u8bef\u5dee\u4f1a\u6bd4\u82f1\u6587\u5927\u4e00\u4e9b（\u4e2d\u6587\u4e00\u4e2a\u5b57\u5f80\u5f80\u63a5\u8fd1\u4e00\u4e2a token，\u800c\u6309\u5b57\u7b26\u6570\u9664\u7cfb\u6570\u7684\u7b97\u6cd5\u53ef\u80fd\u4f4e\u4f30\u6216\u9ad8\u4f30）\u3002<\/p>\n

\u4e00\u822c\u4e0d\u9700\u8981\u66f4\u6539\u8fd9\u4e2a\u9ed8\u8ba4\u503c\u3002\u4f46\u4f60\u8981\u660e\u767d\u4e00\u4e2a\u63a8\u8bba：\u65e2\u7136\u662f\u4f30\u7b97，trigger \u7684\u9608\u503c\u5c31\u4e0d\u8981\u8d34\u7740\u6a21\u578b\u4e0a\u9650\u8bbe\u3002\u6bd4\u5982\u7a97\u53e3 128K，threshold \u8bbe 100K \u51fa\u5934\u662f\u5371\u9669\u7684\u2014\u2014\u4f30\u7b97\u504f\u5dee\u52a0\u4e0a\u5de5\u5177\u8f93\u51fa\u7684\u7a81\u53d1\u81a8\u80c0，\u53ef\u80fd\u5728\u4f60\u6458\u8981\u89e6\u53d1\u4e4b\u524d\u5c31\u5148\u628a\u7a97\u53e3\u6491\u7206\u4e86\u3002\u7559 20%~30% \u4f59\u91cf\u662f\u7a33\u59a5\u7684\u505a\u6cd5\u3002<\/p>\n

3.6 summary_prompt：\u81ea\u5b9a\u4e49\u6458\u8981\u600e\u4e48\u5199<\/h4>\n

summary_prompt \u5141\u8bb8\u4f60\u63a5\u7ba1\u6458\u8981\u6a21\u578b\u7684\u63d0\u793a\u8bcd\u3002\u552f\u4e00\u786c\u6027\u8981\u6c42\u662f：\u63d0\u793a\u8bcd\u91cc\u5fc5\u987b\u5305\u542b {messages} \u5360\u4f4d\u7b26，\u5386\u53f2\u6d88\u606f\u5217\u8868\u4f1a\u88ab\u5e8f\u5217\u5316\u540e\u586b\u8fdb\u8fd9\u4e2a\u4f4d\u7f6e\u3002\u4e0d\u6307\u5b9a\u5c31\u4f7f\u7528\u5185\u7f6e\u7684\u82f1\u6587\u6458\u8981\u6a21\u677f（\u8f93\u51fa\u91cc\u90a3\u4e9b SESSION INTENT\u3001ARTIFACTS\u3001NEXT STEPS \u5c0f\u8282\u5c31\u6765\u81ea\u5b83）\u3002<\/p>\n

\u81ea\u5b9a\u4e49\u7684\u4ef7\u503c\u5728\u4e8e：\u4f60\u53ef\u4ee5\u8981\u6c42\u6458\u8981\u7528\u4e2d\u6587\u5199\u3001\u6309\u4f60\u7684\u4e1a\u52a1\u7ed3\u6784\u7ec4\u7ec7（\u6bd4\u5982"\u5df2\u786e\u8ba4\u7684\u9700\u6c42 \/ \u672a\u51b3\u95ee\u9898 \/ \u7528\u6237\u504f\u597d"\u4e09\u6bb5\u5f0f）\u3001\u6216\u8005\u5f3a\u8c03\u4fdd\u7559\u67d0\u4e9b\u7279\u5b9a\u4fe1\u606f（\u8ba2\u5355\u53f7\u3001\u7528\u6237 ID）\u3002\u8fd9\u662f\u628a"\u6458\u8981\u8d28\u91cf"\u63e1\u5728\u81ea\u5df1\u624b\u91cc\u7684\u5173\u952e\u53c2\u6570\u3002<\/p>\n

3.7 trim_token_to_summarize：\u6458\u8981\u8f93\u5165\u7684\u4fdd\u9669\u4e1d<\/h4>\n

\u6700\u540e\u4e00\u4e2a\u53c2\u6570 trim_token_to_summarize \u9650\u5b9a"\u53c2\u4e0e\u6458\u8981\u7684\u5386\u53f2\u6d88\u606f\u6700\u5927 token \u6570"，\u8d85\u51fa\u90e8\u5206\u4f1a\u88ab\u88c1\u526a\u6389，\u9ed8\u8ba4 4000\u3002\u5b83\u5b58\u5728\u7684\u610f\u4e49\u662f\u7ed9\u6458\u8981\u8c03\u7528\u672c\u8eab\u4e0a\u4fdd\u9669：\u4e07\u4e00\u5386\u53f2\u81a8\u80c0\u5f97\u592a\u731b，\u6458\u8981\u8bf7\u6c42\u81ea\u5df1\u5148\u8d85\u4e86\u6a21\u578b\u9650\u5236，\u90a3\u5c31\u5f97\u4e0d\u507f\u5931\u4e86\u3002<\/p>\n

\u8fd9\u91cc\u6709\u4e00\u4e2a\u5fc5\u987b\u7279\u522b\u6ce8\u610f\u7684\u8054\u52a8\u5751：\u5982\u679c trigger \u7528 token \u4f5c\u4e3a\u5ea6\u91cf，\u8c03\u5927\u89e6\u53d1\u9608\u503c\u65f6，trim_token_to_summarize \u8981\u76f8\u5e94\u8c03\u5927，\u5426\u5219\u4f1a\u4e22\u4fe1\u606f\u3002\u6bd4\u5982\u4f60\u628a trigger \u8bbe\u6210 ("tokens", 20000)，\u4f46 trim \u8fd8\u662f\u9ed8\u8ba4 4000\u2014\u2014\u89e6\u53d1\u6458\u8981\u65f6，\u53ea\u6709\u6700\u8fd1 4000 token \u7684\u5386\u53f2\u53c2\u4e0e\u6458\u8981，\u66f4\u65e9\u7684 16000 token \u76f4\u63a5\u88ab\u88c1\u6389\u3001\u6c38\u8fdc\u6d88\u5931\u3002\u8fd9\u4e0d\u662f"\u538b\u7f29"，\u662f"\u622a\u65ad"\u3002\u8bb0\u4f4f\u8fd9\u4e2a\u914d\u5bf9\u5173\u7cfb：trigger \u5b9a"\u4ec0\u4e48\u65f6\u5019\u538b"，trim \u5b9a"\u538b\u7684\u65f6\u5019\u6700\u591a\u5e26\u591a\u5c11\u6599"，\u4e24\u8005\u8981\u6210\u6bd4\u4f8b\u5730\u52a8\u3002<\/p>\n

\u56db\u3001\u793a\u4f8b\u4e00：\u9ed8\u8ba4\u6458\u8981\u63d0\u793a\u8bcd，\u770b\u61c2\u8f93\u51fa\u957f\u4ec0\u4e48\u6837<\/h3>\n

\u5148\u770b\u7b2c\u4e00\u4e2a\u5b8c\u6574\u793a\u4f8b，\u9a8c\u8bc1 trigger \u548c keep \u7684\u884c\u4e3a\u3002\u6211\u4eec\u6784\u9020\u4e00\u6bb5\u516d\u6761\u6d88\u606f\u7684\u77ed\u5bf9\u8bdd，\u628a\u89e6\u53d1\u9608\u503c\u538b\u5f97\u6781\u4f4e（100 token \/ 6 \u6761\u6d88\u606f \/ 0.001 \u6bd4\u4f8b），\u786e\u4fdd\u4e00\u6b21 invoke \u5c31\u80fd\u89e6\u53d1\u6458\u8981：<\/p>\n

from<\/span> langchain.<\/span>chat_models import<\/span> init_chat_model
\nfrom<\/span> dotenv import<\/span> load_dotenv
\nimport<\/span> os<\/p>\n

# \u4ece .env \u6587\u4ef6\u4e2d\u52a0\u8f7d\u73af\u5883\u53d8\u91cf<\/span>
\nload_dotenv(<\/span>override=<\/span>True<\/span>)<\/span><\/p>\n

# Deepseek \u6a21\u578b\u7684 profile \u4e3a\u7a7a，\u624b\u52a8\u8865 max_input_tokens<\/span>
\n# \u5426\u5219\u4f7f\u7528 fraction \u5ea6\u91cf\u65f6\u4f1a\u62a5\u9519<\/span>
\ncustom_profile =<\/span> {<\/span>
\n "max_input_tokens"<\/span>:<\/span> 128_000<\/span>
\n}<\/span>
\nmodel =<\/span> init_chat_model(<\/span>
\n model=<\/span>"deepseek-v4-flash"<\/span>,<\/span>
\n model_provider=<\/span>"deepseek"<\/span>,<\/span>
\n profile=<\/span>custom_profile,<\/span> # \u624b\u52a8\u8865\u5168\u6a21\u578b\u914d\u7f6e\u4fe1\u606f<\/span>
\n api_key=<\/span>os.<\/span>getenv(<\/span>"DEEPSEEK_API_KEY"<\/span>)<\/span>,<\/span>
\n base_url=<\/span>os.<\/span>getenv(<\/span>"DEEPSEEK_BASE_URL"<\/span>)<\/span>
\n)<\/span><\/p>\n

from<\/span> langchain.<\/span>agents import<\/span> create_agent
\nfrom<\/span> langchain.<\/span>agents.<\/span>middleware import<\/span> SummarizationMiddleware
\nfrom<\/span> langchain.<\/span>messages import<\/span> SystemMessage,<\/span> HumanMessage,<\/span> AIMessage<\/p>\n

messages =<\/span> [<\/span>
\n SystemMessage(<\/span>"\u4f60\u662f\u4e2a\u975e\u5e38\u53cb\u597d\u7684 AI \u52a9\u624b"<\/span>)<\/span>,<\/span>
\n HumanMessage(<\/span>"\u4f60\u597d\u554a，\u6211\u662f\u8001\u738b，\u4f60\u662f\u8c01？"<\/span>)<\/span>,<\/span>
\n AIMessage(<\/span>"\u4f60\u597d\u8001\u738b，\u6211\u662f\u5c0f\u738b"<\/span>)<\/span>,<\/span>
\n HumanMessage(<\/span>"\u597d\u7684\u5c0f\u738b，\u5f88\u9ad8\u5174\u8ba4\u8bc6\u4f60"<\/span>)<\/span>,<\/span>
\n AIMessage(<\/span>"\u4f60\u9ad8\u5174\u5f97\u592a\u65e9\u4e86"<\/span>)<\/span>,<\/span>
\n HumanMessage(<\/span>"\u5475\u5475，\u4f60\u4ec0\u4e48\u610f\u601d"<\/span>)<\/span>
\n]<\/span><\/p>\n

agent =<\/span> create_agent(<\/span>
\n model=<\/span>"deepseek-v4-flash"<\/span>,<\/span>
\n middleware=<\/span>[<\/span>
\n SummarizationMiddleware(<\/span>
\n model=<\/span>model,<\/span> # \u7528\u4e0a\u9762\u8865\u5168\u4e86 profile \u7684\u6a21\u578b\u505a\u6458\u8981<\/span>
\n trigger=<\/span>[<\/span>
\n (<\/span>"tokens"<\/span>,<\/span> 100<\/span>)<\/span>,<\/span> # \u5ea6\u91cf\u4e00：\u5386\u53f2\u7d2f\u8ba1 token \u8fbe 100<\/span>
\n (<\/span>"messages"<\/span>,<\/span> 6<\/span>)<\/span>,<\/span> # \u5ea6\u91cf\u4e8c：\u5386\u53f2\u6d88\u606f\u8fbe 6 \u6761<\/span>
\n (<\/span>"fraction"<\/span>,<\/span> 0.001<\/span>)<\/span> # \u5ea6\u91cf\u4e09：\u8fbe\u7a97\u53e3\u7684 0.1%<\/span>
\n ]<\/span>,<\/span> # \u5217\u8868 = \u4efb\u4e00\u6ee1\u8db3\u5373\u89e6\u53d1（OR \u8bed\u4e49）<\/span>
\n keep=<\/span>(<\/span>"messages"<\/span>,<\/span> 2<\/span>)<\/span> # \u6458\u8981\u540e\u4fdd\u7559\u6700\u65b0 2 \u6761\u539f\u59cb\u6d88\u606f<\/span>
\n )<\/span>
\n ]<\/span>
\n)<\/span><\/p>\n

response =<\/span> agent.<\/span>invoke(<\/span>{<\/span>
\n "messages"<\/span>:<\/span> messages
\n}<\/span>)<\/span>
\nfor<\/span> msg in<\/span> response[<\/span>"messages"<\/span>]<\/span>:<\/span>
\n msg.<\/span>pretty_print(<\/span>)<\/span><\/p>\n

\u8fd0\u884c\u540e，\u8fd4\u56de\u7684\u6d88\u606f\u5217\u8868\u662f\u8fd9\u6837\u7684（\u8282\u9009\u5173\u952e\u90e8\u5206）：<\/p>\n

================================ Human Message =================================
\nHere is a summary of the conversation to date:
\n## SESSION INTENT
\n\u7528\u6237（\u8001\u738b）\u4e0e AI（\u5c0f\u738b）\u8fdb\u884c\u521d\u6b21\u95ee\u5019\u548c\u4ecb\u7ecd\u3002\u6ca1\u6709\u660e\u786e\u7684\u540e\u7eed\u4efb\u52a1\u76ee\u6807，
\n\u4f1a\u8bdd\u76ee\u524d\u5904\u4e8e\u793e\u4ea4\u5f00\u573a\u9636\u6bb5\u3002
\n## SUMMARY
\n\u7528\u6237\u81ea\u79f0"\u8001\u738b"，\u5411 AI \u95ee\u597d\u5e76\u8be2\u95ee AI \u7684\u8eab\u4efd\u3002AI \u56de\u5e94，\u81ea\u6211\u4ecb\u7ecd\u4e3a"\u5c0f\u738b"\u3002
\n\u7528\u6237\u968f\u540e\u8868\u793a\u5f88\u9ad8\u5174\u8ba4\u8bc6 AI\u3002\u8fd9\u662f\u4e00\u6bb5\u7b80\u77ed\u7684\u793e\u4ea4\u6027\u5bf9\u8bdd\u5f00\u7aef\u2026\u2026
\n## ARTIFACTS
\nNone
\n## NEXT STEPS
\n\u7b49\u5f85\u7528\u6237\u63d0\u51fa\u5177\u4f53\u7684\u8bf7\u6c42\u6216\u4efb\u52a1\u2026\u2026
\n================================== Ai Message ==================================
\n\u4f60\u9ad8\u5174\u5f97\u592a\u65e9\u4e86
\n================================ Human Message =================================
\n\u5475\u5475，\u4f60\u4ec0\u4e48\u610f\u601d
\n================================== Ai Message ==================================
\n"\u4f60\u9ad8\u5174\u5f97\u592a\u65e9\u4e86"\u662f\u4e00\u53e5\u5e38\u89c1\u7684\u7f51\u7edc\u8c03\u4f83\u7528\u8bed\u2026\u2026\u9700\u8981\u6211\u5e2e\u5fd9\u5904\u7406\u5177\u4f53\u4e8b\u52a1\u65f6，
\n\u53ef\u4ee5\u968f\u65f6\u544a\u8bc9\u6211\u54e6 😄<\/p>\n

\u9010\u6761\u89e3\u8bfb\u8fd9\u4efd\u8f93\u51fa，\u56db\u4e2a\u4fe1\u606f\u70b9\u503c\u5f97\u6ce8\u610f：<\/p>\n

  • fraction \u751f\u6548\u7684\u524d\u63d0\u662f\u624b\u52a8\u8865\u4e86 profile\u3002\u4ee3\u7801\u91cc\u5982\u679c\u4e0d\u4f20 custom_profile，\u8fd9\u4e2a\u5e26 fraction \u7684 trigger \u4f1a\u76f4\u63a5\u62a5\u9519\u2014\u2014\u8fd9\u5c31\u662f 3.3 \u8282\u8bf4\u7684\u5751\u3002<\/li>\n
  • \u4e09\u4e2a\u6761\u4ef6\u662f OR \u5173\u7cfb\u3002\u8fd9\u6bb5\u5bf9\u8bdd\u5176\u5b9e\u4e09\u4e2a\u6761\u4ef6\u90fd\u6ee1\u8db3\u4e86（100 token \u65e9\u8d85\u4e86\u3001\u6d88\u606f\u6070\u597d 6 \u6761\u3001fraction \u4e5f\u8d85\u4e86），\u53ea\u8981\u5176\u4e2d\u4efb\u4f55\u4e00\u4e2a\u6ee1\u8db3，\u6458\u8981\u5c31\u4f1a\u89e6\u53d1\u3002<\/li>\n
  • \u6458\u8981\u7ed3\u679c\u662f\u5934\u90e8\u7684\u4e00\u6761 HumanMessage，\u5e26\u7740\u5185\u7f6e\u6a21\u677f\u7684\u56db\u4e2a\u5c0f\u8282（\u610f\u56fe\/\u6458\u8981\/\u4ea7\u7269\/\u4e0b\u4e00\u6b65）\u3002\u539f\u6765\u7684\u5f00\u573a\u767d\u3001\u81ea\u6211\u4ecb\u7ecd\u7b49\u6d88\u606f\u5df2\u7ecf\u4e0d\u5728\u5217\u8868\u91cc\u4e86\u2014\u2014\u5b83\u4eec\u88ab\u538b\u7f29\u8fdb\u4e86\u8fd9\u6bb5\u6458\u8981\u3002<\/li>\n
  • keep \u751f\u6548：\u6700\u65b0\u7684\u4e24\u6761\u6d88\u606f（\u201c\u4f60\u9ad8\u5174\u5f97\u592a\u65e9\u4e86"\u548c"\u5475\u5475，\u4f60\u4ec0\u4e48\u610f\u601d\u201d）\u539f\u6837\u4fdd\u7559\u5728\u6458\u8981\u4e4b\u540e，\u6a21\u578b\u5bf9"\u521a\u624d\u53d1\u751f\u4e86\u4ec0\u4e48"\u4ecd\u6709\u5b8c\u6574\u7684\u77ed\u671f\u8bb0\u5fc6\u3002<\/li>\n

    \u4e94\u3001\u793a\u4f8b\u4e8c：\u81ea\u5b9a\u4e49 summary_prompt，\u6362\u4e00\u79cd\u6458\u8981\u98ce\u683c<\/h3>\n

    \u7b2c\u4e8c\u4e2a\u793a\u4f8b\u628a summary_prompt \u6362\u6210\u4e2d\u6587\u6781\u7b80\u7248，\u770b\u6458\u8981\u98ce\u683c\u7684\u53d8\u5316：<\/p>\n

    from<\/span> langchain.<\/span>chat_models import<\/span> init_chat_model
    \nfrom<\/span> dotenv import<\/span> load_dotenv
    \nimport<\/span> os<\/p>\n

    load_dotenv(<\/span>override=<\/span>True<\/span>)<\/span><\/p>\n

    # \u8fd9\u6b21\u6f14\u793a gpt \u6a21\u578b，\u540c\u6837\u624b\u52a8\u58f0\u660e profile<\/span>
    \ncustom_profile =<\/span> {<\/span>
    \n "max_input_tokens"<\/span>:<\/span> 1_000_000<\/span>
    \n}<\/span>
    \nmodel =<\/span> init_chat_model(<\/span>
    \n model=<\/span>"gpt-5.4-mini"<\/span>,<\/span>
    \n model_provider=<\/span>"openai"<\/span>,<\/span>
    \n profile=<\/span>custom_profile,<\/span>
    \n api_key=<\/span>os.<\/span>getenv(<\/span>"OPENAI_API_KEY"<\/span>)<\/span>,<\/span>
    \n base_url=<\/span>os.<\/span>getenv(<\/span>"OPENAI_BASE_URL"<\/span>)<\/span>
    \n)<\/span><\/p>\n

    from<\/span> langchain.<\/span>agents import<\/span> create_agent
    \nfrom<\/span> langchain.<\/span>agents.<\/span>middleware import<\/span> SummarizationMiddleware
    \nfrom<\/span> langchain.<\/span>messages import<\/span> SystemMessage,<\/span> HumanMessage,<\/span> AIMessage<\/p>\n

    messages =<\/span> [<\/span>
    \n SystemMessage(<\/span>"\u4f60\u662f\u4e2a\u975e\u5e38\u53cb\u597d\u7684 AI \u52a9\u624b"<\/span>)<\/span>,<\/span>
    \n HumanMessage(<\/span>"\u4f60\u597d\u554a，\u6211\u662f\u8001\u738b，\u4f60\u662f\u8c01？"<\/span>)<\/span>,<\/span>
    \n AIMessage(<\/span>"\u4f60\u597d\u8001\u738b，\u6211\u662f\u5c0f\u738b"<\/span>)<\/span>,<\/span>
    \n HumanMessage(<\/span>"\u597d\u7684\u5c0f\u738b，\u5f88\u9ad8\u5174\u8ba4\u8bc6\u4f60"<\/span>)<\/span>,<\/span>
    \n AIMessage(<\/span>"\u4f60\u9ad8\u5174\u5f97\u592a\u65e9\u4e86"<\/span>)<\/span>,<\/span>
    \n HumanMessage(<\/span>"\u5475\u5475，\u4f60\u4ec0\u4e48\u610f\u601d，\u4f60\u662f\u8c01？"<\/span>)<\/span>
    \n]<\/span><\/p>\n

    agent =<\/span> create_agent(<\/span>
    \n model=<\/span>"deepseek-v4-flash"<\/span>,<\/span>
    \n middleware=<\/span>[<\/span>
    \n SummarizationMiddleware(<\/span>
    \n model=<\/span>model,<\/span>
    \n trigger=<\/span>[<\/span>
    \n (<\/span>"tokens"<\/span>,<\/span> 100<\/span>)<\/span>,<\/span>
    \n (<\/span>"messages"<\/span>,<\/span> 6<\/span>)<\/span>,<\/span>
    \n (<\/span>"fraction"<\/span>,<\/span> 0.0001<\/span>)<\/span>
    \n ]<\/span>,<\/span>
    \n keep=<\/span>(<\/span>"messages"<\/span>,<\/span> 2<\/span>)<\/span>,<\/span>
    \n # \u81ea\u5b9a\u4e49\u6458\u8981\u63d0\u793a\u8bcd，{messages} \u5360\u4f4d\u7b26\u662f\u786c\u6027\u8981\u6c42<\/span>
    \n summary_prompt=<\/span>"\u5bf9\u5386\u53f2\u6d88\u606f\u6458\u8981，\u6d88\u606f\u5217\u8868\u5982\u4e0b\\\\n{messages}"<\/span>
    \n )<\/span>
    \n ]<\/span>
    \n)<\/span><\/p>\n

    response =<\/span> agent.<\/span>invoke(<\/span>{<\/span>
    \n "messages"<\/span>:<\/span> messages
    \n}<\/span>)<\/span>
    \nfor<\/span> msg in<\/span> response[<\/span>"messages"<\/span>]<\/span>:<\/span>
    \n msg.<\/span>pretty_print(<\/span>)<\/span><\/p>\n

    \u8f93\u51fa\u4e0e\u793a\u4f8b\u4e00\u5bf9\u6bd4，\u6458\u8981\u90e8\u5206\u7684\u5f62\u6001\u5b8c\u5168\u53d8\u4e86\u2014\u2014\u4e0d\u518d\u6709 SESSION INTENT \u90a3\u5957\u82f1\u6587\u6a21\u677f，\u800c\u662f\u76f4\u63a5\u6309\u6211\u4eec\u7ed9\u7684\u6307\u4ee4\u751f\u6210\u4e00\u6bb5\u4e2d\u6587\u6458\u8981，\u5f00\u5934\u4e5f\u6ca1\u6709"Here is a summary of the conversation to date"\u7684\u56fa\u5b9a\u524d\u7f00\u3002\u4e24\u4e2a\u7ed3\u8bba：<\/p>\n

  • \u63d0\u793a\u8bcd\u751f\u6548\u4e86：\u6458\u8981\u7ed3\u679c\u7684\u683c\u5f0f\u3001\u8bed\u8a00\u3001\u8be6\u7565\u7a0b\u5ea6\u548c\u793a\u4f8b\u4e00\u660e\u663e\u4e0d\u540c，summary_prompt \u5b8c\u5168\u63a5\u7ba1\u4e86\u6458\u8981\u6a21\u578b\u7684\u6307\u4ee4\u3002<\/li>\n
  • {messages} \u88ab\u771f\u5b9e\u66ff\u6362：\u6458\u8981\u5185\u5bb9\u51c6\u786e\u8986\u76d6\u4e86\u5386\u53f2\u5bf9\u8bdd\u7684\u5b8c\u6574\u8109\u7edc，\u8bf4\u660e\u5386\u53f2\u6d88\u606f\u5217\u8868\u88ab\u5e8f\u5217\u5316\u540e\u586b\u8fdb\u4e86\u5360\u4f4d\u7b26\u3002\u5982\u679c\u4f60\u5728\u81ea\u5b9a\u4e49\u63d0\u793a\u8bcd\u91cc\u5199"\u7528\u4e09\u53e5\u8bdd\u4ee5\u5185\u603b\u7ed3"\u201c\u5fc5\u987b\u4fdd\u7559\u6240\u6709\u6570\u5b57\u548c\u4e13\u6709\u540d\u8bcd\u201d，\u6458\u8981\u5c31\u4f1a\u7167\u505a\u2014\u2014\u8fd9\u662f\u63a7\u5236\u6458\u8981\u8d28\u91cf\u6700\u76f4\u63a5\u7684\u624b\u6bb5\u3002<\/li>\n

    \u516d\u3001ContextEditingMiddleware：\u6e05\u7406\u5de5\u5177\u8c03\u7528\u7684"\u62bd\u8102\u624b\u672f"<\/h3>\n

    \u6458\u8981\u89e3\u51b3\u7684\u662f"\u5bf9\u8bdd\u5386\u53f2\u592a\u957f"，\u4f46\u8fd8\u6709\u4e00\u7c7b\u81a8\u80c0\u5b83\u7ba1\u4e0d\u4e86\u4e5f\u4e0d\u8be5\u7ba1：\u5de5\u5177\u8c03\u7528\u75d5\u8ff9\u3002Agent \u6bcf\u8f6e\u8c03\u7528\u5de5\u5177，\u5386\u53f2\u91cc\u5c31\u591a\u4e00\u7ec4"tool_calls \u51b3\u7b56 + \u5de5\u5177\u8fd4\u56de\u7684\u5927\u6bb5\u7ed3\u679c"\u3002\u8fd9\u4e9b\u8fd4\u56de\u503c\u5f80\u5f80\u5728\u7b2c N+5 \u8f6e\u5c31\u6beb\u65e0\u7528\u5904\u4e86，\u5374\u6bcf\u8f6e\u90fd\u8ddf\u7740\u8ba1\u8d39\u3002\u5bf9\u5b83\u4eec\u505a\u5168\u6587\u6458\u8981\u65e2\u6d6a\u8d39（\u5185\u5bb9\u672c\u6765\u5c31\u6ca1\u4fe1\u606f\u91cf），\u4e5f\u53ef\u80fd\u7834\u574f\u683c\u5f0f\u3002<\/p>\n

    ContextEditingMiddleware \u7684\u601d\u8def\u5b8c\u5168\u4e0d\u540c：\u5b83\u4e0d\u6539\u5199\u3001\u4e0d\u603b\u7ed3，\u800c\u662f\u901a\u8fc7\u66f4\u6539\u53d1\u9001\u7ed9\u6a21\u578b\u7684\u6d88\u606f\u5217\u8868\u6765\u63a7\u5236\u6210\u672c\u2014\u2014\u5178\u578b\u64cd\u4f5c\u5c31\u662f\u628a\u8fc7\u671f\u5de5\u5177\u8c03\u7528\u7684\u8fd4\u56de\u503c\u76f4\u63a5\u6e05\u7a7a\u3002\u6ce8\u610f\u4e00\u4e2a\u91cd\u8981\u7279\u6027：\u5b83\u4e0d\u4f1a\u66f4\u6539\u5e95\u5c42\u5b58\u50a8\u7684\u6d88\u606f\u5217\u8868，\u53ea\u5728"\u53d1\u7ed9\u6a21\u578b\u4e4b\u524d"\u8fd9\u4e2a\u89c6\u56fe\u4e0a\u505a\u7f16\u8f91\u3002\u56e0\u6b64\u6211\u4eec\u6ca1\u6cd5\u4ece\u8fd4\u56de\u7684 messages \u91cc\u76f4\u63a5\u770b\u5230\u88c1\u526a\u75d5\u8ff9，\u53ea\u80fd\u901a\u8fc7 token \u7528\u91cf\u7684\u53d8\u5316\u6765\u63a8\u6d4b\u5b83\u662f\u5426\u751f\u6548\u3002<\/p>\n

    \u5b83\u901a\u8fc7 edits \u53c2\u6570\u63a5\u6536\u4e00\u7ec4\u7f16\u8f91\u89c4\u5219，\u6700\u5e38\u7528\u7684\u662f ClearToolUsesEdit：\u5f53\u4e0a\u4e0b\u6587\u8d85\u8fc7\u9608\u503c（trigger，\u6309 token \u6570）\u65f6，\u628a\u5de5\u5177\u8c03\u7528\u7684\u8fd4\u56de\u5185\u5bb9\u6e05\u6389，keep \u6307\u5b9a\u4fdd\u7559\u6700\u8fd1\u51e0\u6b21\u5de5\u5177\u8c03\u7528\u7684\u7ed3\u679c\u3002\u76f4\u63a5\u770b\u5b9e\u9a8c\u4ee3\u7801：<\/p>\n

    from<\/span> langchain.<\/span>agents import<\/span> create_agent
    \nfrom<\/span> langchain.<\/span>agents.<\/span>middleware import<\/span> ContextEditingMiddleware,<\/span> ClearToolUsesEdit
    \nfrom<\/span> langchain.<\/span>messages import<\/span> HumanMessage,<\/span> AIMessage
    \nfrom<\/span> langgraph.<\/span>checkpoint.<\/span>memory import<\/span> InMemorySaver
    \nfrom<\/span> dotenv import<\/span> load_dotenv<\/p>\n

    load_dotenv(<\/span>)<\/span>
    \ncount =<\/span> 0<\/span><\/p>\n

    @tool<\/span>
    \ndef<\/span> get_weather<\/span>(<\/span>city:<\/span> str<\/span>)<\/span>:<\/span>
    \n """\u67e5\u8be2\u6307\u5b9a\u57ce\u5e02\u5929\u6c14"""<\/span>
    \n global<\/span> count
    \n # \u6545\u610f\u8fd4\u56de\u4e00\u5927\u6bb5\u51d1\u5b57\u6570\u7684\u6587\u672c，\u6a21\u62df\u722c\u866b\/\u4ee3\u7801\u6267\u884c\u7c7b\u7684"\u5927\u4f53\u91cf"\u5de5\u5177\u8f93\u51fa<\/span>
    \n return<\/span> (<\/span>f"\u5f53\u524d\u662f\u7b2c <\/span>{<\/span>count}<\/span><\/span> \u6b21\u8c03\u7528\u5de5\u5177，<\/span>{<\/span>city}<\/span><\/span> \u4eca\u5929\u5929\u6c14\u6674\u6717 "<\/span><\/span>
    \n f"\u5929\u6c14\u975e\u5e38\u597d，\u5317\u98ce，\u975e\u5e38\u9002\u5408\u51fa\u884c，\u76fc\u671b\u7740，\u76fc\u671b\u7740， "<\/span><\/span>
    \n f"\u6625\u5929\u6765\u4e86\u3002\u6211\u559c\u6b22\u6625\u5929，\u4f60\u559c\u6b22\u5417，\u5929\u6c14\u771f\u7684\u5f88\u4e0d\u9519 "<\/span><\/span>
    \n f"\u4e07\u91cc\u65e0\u4e91，\u5929\u6c14\u6674\u6717，\u6625\u548c\u666f\u660e，\u54c8\u54c8\u54c8\u54c8\u54c8\u54c8，\u8fd9\u662f\u51d1\u5b57\u6570\u7684 "<\/span><\/span>
    \n f"\u771f\u4e0d\u9519，\u5929\u6c14\u975e\u5e38\u597d，\u9002\u5408\u51fa\u884c，\u8fd9\u91cc token \u633a\u591a\u7684 "<\/span><\/span>
    \n f"\u53ef\u4ee5\u51fa\u95e8\u73a9，\u53ef\u4ee5\u8dd1\u6b65，\u9493\u9c7c，\u722c\u5c71，\u4e00\u5207\u90fd\u5f88\u597d\u54c8\u54c8\u54c8"<\/span><\/span>)<\/span><\/p>\n

    agent =<\/span> create_agent(<\/span>
    \n model=<\/span>"deepseek-chat"<\/span>,<\/span>
    \n tools=<\/span>[<\/span>get_weather]<\/span>,<\/span>
    \n middleware=<\/span>[<\/span>
    \n ContextEditingMiddleware(<\/span>
    \n edits=<\/span>[<\/span>
    \n ClearToolUsesEdit(<\/span>
    \n trigger=<\/span>50<\/span>,<\/span> # \u4e0a\u4e0b\u6587\u8d85\u8fc7 50 token \u5c31\u5f00\u59cb\u6e05\u7406\u5de5\u5177\u8fd4\u56de<\/span>
    \n keep=<\/span>0<\/span> # \u4fdd\u7559\u6700\u8fd1 0 \u6b21\u5de5\u5177\u7ed3\u679c，\u5373\u5168\u90e8\u6e05\u6389<\/span>
    \n )<\/span>,<\/span>
    \n ]<\/span>,<\/span>
    \n )<\/span>,<\/span>
    \n ]<\/span>,<\/span>
    \n checkpointer=<\/span>InMemorySaver(<\/span>)<\/span> # \u5185\u5b58\u8bb0\u5fc6，\u914d\u5408 thread_id \u8de8\u8f6e\u627e\u56de\u5386\u53f2<\/span>
    \n)<\/span><\/p>\n

    config =<\/span> {<\/span>"configurable"<\/span>:<\/span> {<\/span>"thread_id"<\/span>:<\/span> "1"<\/span>}<\/span>}<\/span>
    \nfor<\/span> i in<\/span> range<\/span>(<\/span>3<\/span>)<\/span>:<\/span>
    \n print<\/span>(<\/span>"="<\/span> *<\/span> 30<\/span>,<\/span> f"\u5f53\u524d\u662f\u7b2c <\/span>{<\/span>i +<\/span> 1<\/span>}<\/span><\/span> \u8f6e\u8c03\u7528"<\/span><\/span>,<\/span> "="<\/span> *<\/span> 30<\/span>)<\/span>
    \n count =<\/span> i +<\/span> 1<\/span>
    \n response =<\/span> agent.<\/span>invoke(<\/span>{<\/span>
    \n "messages"<\/span>:<\/span> [<\/span>HumanMessage(<\/span>f"\u7b2c <\/span>{<\/span>i +<\/span> 1<\/span>}<\/span><\/span> \u6b21\u8be2\u95ee：\u4eca\u5929\u5317\u4eac\u5929\u6c14\u5982\u4f55，\u4e00\u53e5\u8bdd\u56de\u7b54"<\/span><\/span>)<\/span>]<\/span>
    \n }<\/span>,<\/span> config=<\/span>config)<\/span>
    \n print<\/span>(<\/span>"—- \u672c\u6b21\u8fd4\u56de\u7684 messages —-"<\/span>)<\/span>
    \n for<\/span> msg in<\/span> response[<\/span>"messages"<\/span>]<\/span>:<\/span>
    \n if<\/span> isinstance<\/span>(<\/span>msg,<\/span> AIMessage)<\/span>:<\/span>
    \n if<\/span> not<\/span> msg.<\/span>tool_calls:<\/span>
    \n # \u7cbe\u7b80\u6389 audio\/cache_read\/reasoning \u7b49\u5197\u4f59\u5b57\u6bb5，\u53ea\u770b\u6838\u5fc3\u4e09\u9879<\/span>
    \n u =<\/span> msg.<\/span>usage_metadata
    \n print<\/span>(<\/span>f"\u672c\u6b21 token \u7528\u91cf：input=<\/span>{<\/span>u[<\/span>'input_tokens'<\/span>]<\/span>}<\/span><\/span>, "<\/span><\/span>
    \n f"output=<\/span>{<\/span>u[<\/span>'output_tokens'<\/span>]<\/span>}<\/span><\/span>, total=<\/span>{<\/span>u[<\/span>'total_tokens'<\/span>]<\/span>}<\/span><\/span>"<\/span><\/span>)<\/span><\/p>\n

    \u4e09\u8f6e\u8c03\u7528\u4e0b\u6765，\u6bcf\u8f6e\u5b9e\u9645\u8bf7\u6c42\u7684 input_tokens \u53d8\u5316\u5982\u4e0b（usage_metadata \u4e2d\u7684 audio\u3001cache_read\u3001reasoning \u7b49\u5b57\u6bb5\u4e0e\u672c\u5b9e\u9a8c\u65e0\u5173，\u5df2\u7cbe\u7b80）：<\/p>\n\n\u8f6e\u6b21\u5b9e\u9a8c\u7ec4（\u542f\u7528\u6e05\u7406）\u5bf9\u7167\u7ec4（\u4e0d\u6e05\u7406）\u5dee\u503c<\/tr>\n\n\n\n\n
    \u7b2c 1 \u8f6e\u6700\u7ec8\u8bf7\u6c42<\/td>\n169<\/td>\n280<\/td>\n111<\/td>\n<\/tr>\n
    \u7b2c 2 \u8f6e\u6700\u7ec8\u8bf7\u6c42<\/td>\n239<\/td>\n460<\/td>\n221<\/td>\n<\/tr>\n
    \u7b2c 3 \u8f6e\u6700\u7ec8\u8bf7\u6c42<\/td>\n309<\/td>\n640<\/td>\n331<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u89c4\u5f8b\u4e00\u76ee\u4e86\u7136：\u5b9e\u9a8c\u7ec4\u6bcf\u8f6e\u53ea\u589e\u957f 70 token（\u4e00\u6761\u65b0\u5bf9\u8bdd\u7684\u4f53\u91cf），\u5bf9\u7167\u7ec4\u6bcf\u8f6e\u589e\u957f 180 token（\u65b0\u5bf9\u8bdd + \u4e0a\u4e00\u6b21\u5b8c\u6574\u7684\u5de5\u5177\u8fd4\u56de\u6587\u672c）\u3002\u4e09\u8f6e\u4e0b\u6765\u7d2f\u8ba1\u8282\u7701\u4e86 331 token \u7684\u8f93\u5165\u5f00\u9500，\u800c\u4e14\u8f6e\u6570\u8d8a\u591a\u3001\u5de5\u5177\u8f93\u51fa\u8d8a\u5927，\u5dee\u8ddd\u662f\u7ebf\u6027\u653e\u5927\u7684\u2014\u2014\u722c\u4e00\u767e\u4e2a\u7f51\u9875\u7684 Agent \u7528\u4e0d\u7528\u8fd9\u4e2a\u4e2d\u95f4\u4ef6，\u8d26\u5355\u5b8c\u5168\u662f\u4e24\u4e2a\u91cf\u7ea7\u3002<\/p>\n

    \u5bf9\u7167\u7ec4\u7684\u4ee3\u7801\u5c31\u662f\u53bb\u6389 middleware \u914d\u7f6e，\u5176\u4f59\u5b8c\u5168\u76f8\u540c，\u8fd9\u91cc\u4e0d\u91cd\u590d\u8d34\u3002\u4e24\u7ec4\u5bf9\u7167\u8bf4\u660e\u4e86 ContextEditingMiddleware \u7684\u4ef7\u503c：\u5927\u6a21\u578b\u591a\u8f6e\u5bf9\u8bdd\u65f6，\u5982\u679c\u9891\u7e41\u8c03\u7528\u4ea7\u751f\u5927\u91cf\u6587\u672c\u7684\u5de5\u5177（\u5982\u4ee3\u7801\u6267\u884c\u3001\u7f51\u9875\u722c\u53d6），\u5386\u53f2\u8bb0\u5f55\u4f1a\u6025\u5267\u81a8\u80c0\u3002\u8fd9\u4e2a\u4e2d\u95f4\u4ef6\u5c31\u50cf\u4e00\u4e2a"\u4e0a\u4e0b\u6587\u62bd\u8102\u624b\u672f"\u2014\u2014\u5728\u4e0d\u5f71\u54cd\u5f53\u524d\u5bf9\u8bdd\u7684\u524d\u63d0\u4e0b，\u81ea\u52a8\u5728\u540e\u53f0\u5220\u6389\u4e4b\u524d\u6c89\u6dc0\u7684\u5de5\u5177\u8c03\u7528\u5e9f\u8bdd，\u4ece\u800c\u6781\u5927\u5730\u8282\u7701 token \u8d39\u7528\u5e76\u9632\u6b62\u8d85\u51fa\u6a21\u578b\u6700\u5927\u4e0a\u4e0b\u6587\u7a97\u53e3\u3002<\/p>\n

    \u53e6\u5916\u6ce8\u610f InMemorySaver \u7684\u4f5c\u7528：\u5b83\u5728\u5185\u5b58\u4e2d\u5f00\u8f9f\u4e86\u4e00\u4e2a\u5b58\u50a8\u7a7a\u95f4，\u7b2c\u4e8c\u3001\u4e09\u8f6e\u63d0\u95ee\u65f6，Agent \u80fd\u901a\u8fc7 thread_id \u81ea\u52a8\u627e\u56de\u524d\u51e0\u8f6e\u7684\u8bb0\u5fc6\u3002\u6b63\u56e0\u4e3a\u6709\u8de8\u8f6e\u8bb0\u5fc6，\u5386\u53f2\u624d\u4f1a\u7d2f\u79ef\u3001\u6e05\u7406\u624d\u6709\u610f\u4e49\u2014\u2014\u5982\u679c\u4f60\u7684 Agent \u672c\u8eab\u4e0d\u5e26 checkpointer，\u6bcf\u8f6e\u90fd\u662f\u5168\u65b0\u4e0a\u4e0b\u6587，\u4e5f\u5c31\u65e0\u6240\u8c13\u6e05\u7406\u4e86\u3002<\/p>\n

    \u4e03\u3001\u4e2d\u95f4\u4ef6\u81ea\u52a8\u5316 vs \u624b\u52a8\u6cbb\u7406：\u4e00\u5f20\u8868\u770b\u6e05\u5206\u5de5<\/h3>\n

    \u7528 before_model \u4e2d\u95f4\u4ef6\u624b\u5199\u6cbb\u7406\u903b\u8f91（trim_messages \u88c1\u526a\u3001RemoveMessage \u5220\u9664\u3001\u81ea\u5b9a\u4e49\u8fc7\u6ee4\u7b49）\u662f\u53e6\u4e00\u6761\u8def\u5b50\u3002\u8fd9\u91cc\u5148\u7ed9\u4e00\u4e2a\u5b9a\u4f4d\u5bf9\u6bd4，\u5e2e\u4f60\u5206\u6e05"\u4ec0\u4e48\u65f6\u5019\u8be5\u7528\u5185\u7f6e\u4e2d\u95f4\u4ef6，\u4ec0\u4e48\u65f6\u5019\u503c\u5f97\u81ea\u5df1\u52a8\u624b"：<\/p>\n\n\u7ef4\u5ea6SummarizationMiddleware（\u81ea\u52a8\u6458\u8981）\u624b\u52a8\u6cbb\u7406（trim_messages \/ RemoveMessage \u7b49）<\/tr>\n\n\n\n\n\n\n\n
    \u4e0a\u624b\u6210\u672c<\/td>\n\u4e00\u884c\u914d\u7f6e，\u5f00\u7bb1\u5373\u7528<\/td>\n\u9700\u8981\u81ea\u5df1\u5199\u4e2d\u95f4\u4ef6\u51fd\u6570\u3001\u5904\u7406\u6d88\u606f ID \u4e0e Reducer \u903b\u8f91<\/td>\n<\/tr>\n
    \u4fe1\u606f\u4fdd\u7559<\/td>\n\u4fdd\u8bed\u4e49\u4e0d\u4fdd\u539f\u6587，\u65e7\u5386\u53f2\u538b\u6210\u6458\u8981<\/td>\n\u88c1\u526a\/\u5220\u9664\u662f\u786c\u622a\u65ad，\u88ab\u5220\u5185\u5bb9\u5f7b\u5e95\u4e0d\u53ef\u89c1<\/td>\n<\/tr>\n
    \u7075\u6d3b\u6027<\/td>\n\u89e6\u53d1\u548c\u4fdd\u7559\u53ef\u914d\u7f6e，\u4f46\u7b56\u7565\u56fa\u5b9a<\/td>\n\u4efb\u610f\u7b56\u7565：\u6309\u6d88\u606f\u7c7b\u578b\u8fc7\u6ee4\u3001\u6309\u4e1a\u52a1\u89c4\u5219\u4fdd\u7559\u3001\u5220\u9664\u7279\u5b9a\u6d88\u606f<\/td>\n<\/tr>\n
    \u6458\u8981\u989d\u5916\u6210\u672c<\/td>\n\u89e6\u53d1\u65f6\u591a\u4e00\u6b21\u6458\u8981\u6a21\u578b\u8c03\u7528<\/td>\n\u65e0\u989d\u5916\u6a21\u578b\u8c03\u7528<\/td>\n<\/tr>\n
    \u72b6\u6001\u5f71\u54cd<\/td>\n\u6458\u8981\u540e\u771f\u5b9e\u66ff\u6362\u6d88\u606f\u5217\u8868（\u957f\u671f\u751f\u6548）<\/td>\nbefore_model \u88c1\u526a\u53ea\u6539"\u53d1\u7ed9\u6a21\u578b\u7684\u89c6\u56fe"，after_model \u5220\u9664\u624d\u6539\u771f\u5b9e\u72b6\u6001<\/td>\n<\/tr>\n
    \u9002\u7528\u573a\u666f<\/td>\n\u957f\u4f1a\u8bdd\u3001\u5ba2\u670d\u3001\u591a\u8f6e\u4efb\u52a1\u578b Agent<\/td>\n\u6210\u672c\u6781\u5ea6\u654f\u611f\u3001\u9700\u8981\u7cbe\u786e\u63a7\u5236\u4e0a\u4e0b\u6587\u7ed3\u6784\u7684\u573a\u666f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u4e00\u53e5\u8bdd\u603b\u7ed3：\u6458\u8981\u662f"\u65e0\u635f\u4f53\u9a8c\u7684\u6709\u635f\u538b\u7f29"，\u88c1\u526a\u662f"\u65e0\u635f\u6210\u672c\u7684\u6709\u635f\u4f53\u9a8c"\u3002\u4e24\u8005\u4e0d\u4e92\u65a5，\u6210\u719f\u7684\u751f\u4ea7\u7cfb\u7edf\u5f80\u5f80\u6458\u8981\u6253\u5e95\u3001\u518d\u53e0\u52a0\u81ea\u5b9a\u4e49\u8fc7\u6ee4\u3002<\/p>\n

    \u516b\u3001\u9009\u578b\u5efa\u8bae：\u6458\u8981\u3001\u88c1\u526a\u8fd8\u662f\u6e05\u7406\u5de5\u5177\u75d5\u8ff9<\/h3>\n

    \u4e09\u79cd\u624b\u6bb5\u7684\u76ee\u6807\u4e0d\u540c，\u9009\u578b\u5224\u65ad\u5176\u5b9e\u4e0d\u96be：<\/p>\n

      \n
    • \u9009\u6458\u8981（SummarizationMiddleware）：\u5bf9\u8bdd\u8f6e\u6b21\u591a\u3001\u65e7\u4e0a\u4e0b\u6587\u91cc"\u7ed3\u8bba"\u6bd4"\u539f\u6587"\u91cd\u8981（\u5ba2\u670d\u3001\u54a8\u8be2\u3001\u957f\u7a0b\u4efb\u52a1\u89c4\u5212）\u3002\u6a21\u578b\u9700\u8981\u77e5\u9053"\u6211\u4eec\u804a\u8fc7\u4ec0\u4e48\u3001\u5b9a\u4e86\u4ec0\u4e48"，\u4f46\u4e0d\u9700\u8981\u9010\u5b57\u590d\u73b0\u3002<\/li>\n
    • \u9009\u88c1\u526a（trigger_messages \u624b\u52a8\u88c1\u526a \/ keep \u7b56\u7565）：\u6210\u672c\u6781\u5ea6\u654f\u611f\u3001\u65e7\u4e0a\u4e0b\u6587\u4f9d\u8d56\u5f31\u3002\u6bd4\u5982\u7ffb\u8bd1\u3001\u5199\u4f5c\u7c7b\u5355\u4efb\u52a1 Agent，\u524d\u4e09\u8f6e\u7684\u5386\u53f2\u5bf9\u7b2c\u4e94\u8f6e\u57fa\u672c\u65e0\u7528，\u76f4\u63a5\u88c1\u6389\u6700\u7701\u94b1\u3002<\/li>\n
    • \u9009\u6e05\u7406\u5de5\u5177\u75d5\u8ff9（ContextEditingMiddleware）：\u5de5\u5177\u8c03\u7528\u9891\u7e41\u4e14\u8fd4\u56de\u4f53\u91cf\u5927（\u722c\u866b\u3001\u4ee3\u7801\u6267\u884c\u3001\u5927 JSON \u63a5\u53e3），\u800c\u5bf9\u8bdd\u672c\u8eab\u8f6e\u6570\u4e0d\u591a\u3002\u6b64\u65f6\u74f6\u9888\u4e0d\u662f"\u804a\u5f97\u592a\u591a"\u800c\u662f"\u5de5\u5177\u5e9f\u8bdd\u592a\u591a"，\u6458\u8981\u53cd\u800c\u7ed5\u8fdc\u8def\u3002<\/li>\n<\/ul>\n

      \u4e09\u8005\u7684\u5178\u578b\u53c2\u6570\u753b\u50cf\u4e5f\u53ef\u4ee5\u76f4\u63a5\u6284\u4f5c\u4e1a：\u6458\u8981\u7684 trigger \u5efa\u8bae\u7528 fraction（\u8bb0\u5f97\u7ed9 Deepseek \u8865 profile）\u6216\u7559\u8db3\u4f59\u91cf\u7684 tokens；keep \u4fdd\u7559 2~6 \u6761\u8fd1\u671f\u6d88\u606f\u5e73\u8861\u6210\u672c\u4e0e\u8fde\u8d2f\u6027；ClearToolUsesEdit \u7684 trigger \u8bbe\u5f97\u6bd4\u6458\u8981\u9608\u503c\u4f4e（\u6bd4\u5982\u51e0\u5343 token），keep \u4fdd\u7559\u6700\u8fd1 1~2 \u6b21\u5de5\u5177\u7ed3\u679c\u4ee5\u9632\u5f53\u524d\u63a8\u7406\u8fd8\u9700\u8981\u5b83\u4eec\u3002<\/p>\n

      \u4e5d\u3001\u4e0a\u7ebf\u4e4b\u540e：\u9608\u503c\u600e\u4e48\u5b9a，\u8981\u4e0d\u8981\u76ef\u7740\u5b83<\/h3>\n

      \u53c2\u6570\u90fd\u4f1a\u914d\u4e86，\u8fd8\u6709\u4e24\u4e2a\u9ad8\u9891\u7591\u95ee\u9700\u8981\u56de\u7b54\u3002<\/p>\n

      \u7b2c\u4e00\u4e2a\u95ee\u9898：tokens \u89e6\u53d1\u9608\u503c\u5230\u5e95\u8be5\u8bbe\u591a\u5927？ \u6ca1\u6709\u6807\u51c6\u7b54\u6848，\u4f46\u6709\u53ef\u5957\u7528\u7684\u7ecf\u9a8c\u516c\u5f0f\u2014\u2014\u6309\u6a21\u578b\u4e0a\u4e0b\u6587\u7a97\u53e3\u6253\u4e03\u4e94\u6298：\u7a97\u53e3 4K \u8bbe 3000，\u7a97\u53e3 8K \u8bbe 6000，\u7a97\u53e3 16K \u8bbe 12000\u3002\u7559\u51fa\u6765\u7684\u4f59\u91cf\u4e0d\u662f\u6d6a\u8d39，\u800c\u662f\u7ed9\u7cfb\u7edf\u63d0\u793a\u8bcd\u3001\u5de5\u5177\u5b9a\u4e49\u3001\u65b0\u8f93\u5165\u548c token \u4f30\u7b97\u8bef\u5dee\u51c6\u5907\u7684\u7f13\u51b2\u3002\u7ed3\u5408 3.5 \u8282\u8bf4\u7684 count_tokens_approximately \u662f\u4f30\u7b97\u503c\u8fd9\u4e00\u70b9，\u8fd9\u4e2a\u6298\u6263\u5c31\u66f4\u4e0d\u80fd\u7701\u4e86\u3002<\/p>\n

      \u7b2c\u4e8c\u4e2a\u95ee\u9898：\u6458\u8981\u8981\u4e0d\u8981\u6301\u7eed\u5173\u6ce8？ \u8981，\u800c\u4e14\u65b9\u6cd5\u5f88\u7b80\u5355\u2014\u2014\u770b\u6458\u8981\u89e6\u53d1\u9891\u7387\u3002\u7b56\u7565\u662f：\u9891\u7e41\u89e6\u53d1\u5c31\u63d0\u9ad8\u9608\u503c（\u8bf4\u660e\u4f60\u7684\u4f59\u91cf\u7ed9\u5c11\u4e86，\u6458\u8981\u8c03\u7528\u672c\u8eab\u4e5f\u5728\u82b1\u94b1），\u4ece\u4e0d\u89e6\u53d1\u5c31\u964d\u4f4e\u9608\u503c（\u9608\u503c\u5f62\u540c\u865a\u8bbe，\u5386\u53f2\u4e00\u76f4\u5728\u65e0\u538b\u7f29\u5730\u81a8\u80c0）\u3002\u628a\u89e6\u53d1\u9891\u7387\u5f53\u4f5c\u4e00\u4e2a\u76d1\u63a7\u6307\u6807\u63a5\u8fdb\u65e5\u5fd7，\u6bd4\u4e8b\u540e\u590d\u76d8\u8d26\u5355\u8981\u4e3b\u52a8\u5f97\u591a\u3002<\/p>\n

      \u81f3\u4e8e\u6458\u8981\u672c\u8eab\u4f1a\u4e0d\u4f1a\u4e22\u4fe1\u606f：\u4f1a\u4e22\u7ec6\u8282，\u4f46\u59d3\u540d\u3001\u5173\u952e\u4e8b\u5b9e\u8fd9\u7c7b\u91cd\u8981\u4fe1\u606f\u4f1a\u4fdd\u7559，\u6700\u8fd1\u7684\u6d88\u606f\u53c8\u88ab keep \u5b8c\u6574\u4fdd\u7559，\u5bf9\u7edd\u5927\u591a\u6570\u573a\u666f\u8db3\u591f\u3002\u6458\u8981\u5728\u8d85\u8fc7\u9608\u503c\u65f6\u624d\u89e6\u53d1，\u4e14\u53ef\u4ee5\u7528\u4fbf\u5b9c\u6a21\u578b\u6267\u884c，\u76f8\u6bd4\u6bcf\u8f6e\u4f20\u8f93\u5b8c\u6574\u5386\u53f2，\u603b\u4f53\u901a\u5e38\u66f4\u4fbf\u5b9c\u2014\u2014\u8fd9\u4e5f\u662f\u5b83\u6210\u4e3a\u5b98\u65b9\u63a8\u8350\u65b9\u6848\u7684\u539f\u56e0\u3002<\/p>\n

      \u5c0f\u7ed3<\/h3>\n

      \u672c\u6587\u56f4\u7ed5\u4e0a\u4e0b\u6587\u538b\u7f29\u8fd9\u4e2a"\u53cc\u5203\u5251"\u95ee\u9898，\u8bb2\u900f\u4e86\u4e24\u4e2a\u5185\u7f6e\u4e2d\u95f4\u4ef6\u3002SummarizationMiddleware \u7528\u516d\u4e2a\u53c2\u6570\u63d0\u4f9b\u4e86\u5b8c\u6574\u7684\u6458\u8981\u7b56\u7565\u7a7a\u95f4：trigger \u51b3\u5b9a\u4f55\u65f6\u538b（\u5217\u8868 OR\u3001\u5b57\u5178 AND），keep \u51b3\u5b9a\u4fdd\u7559\u4ec0\u4e48，token_counter \u7684\u4f30\u7b97\u539f\u7406\u63d0\u9192\u6211\u4eec\u9608\u503c\u8981\u7559\u4f59\u91cf，summary_prompt \u7684 {messages} \u5360\u4f4d\u7b26\u8ba9\u6211\u4eec\u5b8c\u5168\u638c\u63a7\u6458\u8981\u8d28\u91cf，trim_token_to_summarize \u5219\u8981\u548c trigger \u8054\u52a8\u8c03\u6574\u3001\u907f\u514d"\u5047\u538b\u7f29\u771f\u622a\u65ad"；Deepseek \u7684\u7a7a profile \u9700\u8981\u624b\u52a8\u8865 max_input_tokens \u662f\u4f7f\u7528 fraction \u7684\u524d\u7f6e\u6761\u4ef6\u3002ContextEditingMiddleware \u5219\u4ece\u53e6\u4e00\u4e2a\u89d2\u5ea6\u5207\u5165：\u4e0d\u505a\u6458\u8981，\u76f4\u63a5\u6e05\u6389\u8fc7\u671f\u7684\u5de5\u5177\u8c03\u7528\u8fd4\u56de，\u5b9e\u6d4b\u4e09\u8f6e\u5bf9\u8bdd\u8282\u7701 331 token \u8f93\u5165\u5f00\u9500，\u4e14\u968f\u8f6e\u6570\u7ebf\u6027\u653e\u5927\u3002\u6700\u540e\u6211\u4eec\u7528\u4e24\u5f20\u8868\u5398\u6e05\u4e86\u81ea\u52a8\u5316\u4e2d\u95f4\u4ef6\u4e0e\u624b\u52a8\u6cbb\u7406\u7684\u5206\u5de5\u8fb9\u754c，\u4ee5\u53ca"\u6458\u8981 \/ \u88c1\u526a \/ \u6e05\u7406"\u7684\u4e09\u9009\u4e00\u5224\u65ad\u6807\u51c6\u3002<\/p>\n

      \u4e0a\u4e0b\u6587\u7ba1\u4f4f\u4e86，\u4e0b\u4e00\u9053\u5173\u662f"\u884c\u4e3a\u600e\u4e48\u7ba1"\u2014\u2014Agent \u62ff\u5230\u5de5\u5177\u6743\u9650\u540e，\u54ea\u4e9b\u64cd\u4f5c\u8be5\u81ea\u52a8\u6267\u884c，\u54ea\u4e9b\u5fc5\u987b\u505c\u4e0b\u6765\u7b49\u4eba\u70b9\u5934？\u4eba\u5de5\u5ba1\u6279（Human-in-the-loop）\u4e0e\u5b89\u5168\u9632\u62a4，\u662f Agent \u5de5\u7a0b\u5316\u6700\u96be\u5543\u4e5f\u6700\u6709\u4ef7\u503c\u7684\u73af\u8282\u4e4b\u4e00\u2014\u2014\u7528\u4e2d\u95f4\u4ef6\u7ed9 Agent \u88c5\u4e0a"\u5239\u8f66"\u548c"\u5b89\u5168\u5e26"\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

      \u4e00\u3001\u4ece\u4e00\u4e2a\u5931\u63a7\u7684\u8d26\u5355\u8bf4\u8d77
      \n\u8bbe\u60f3\u4e00\u4e2a\u771f\u5b9e\u573a\u666f：\u4f60\u7ed9\u516c\u53f8\u505a\u4e86\u4e00\u4e2a\u5ba2\u670d Agent，\u4e0a\u5348\u4e0a\u7ebf，\u4e0b\u5348\u8d22\u52a1\u5c31\u6765\u627e\u4f60\u4e86\u2014\u2014API \u8d26\u5355\u6bd4\u9884\u671f\u9ad8\u4e86\u4e00\u4e2a\u6570\u91cf\u7ea7\u3002\u4f60\u6253\u5f00\u65e5\u5fd7\u4e00\u770b，\u95ee\u9898\u5f88\u76f4\u89c2：\u4f1a\u8bdd\u8fdb\u884c\u5230\u7b2c\u4e94\u5341\u8f6e\u65f6，\u6bcf\u4e00\u6b21\u8bf7\u6c42\u90fd\u8981\u628a\u524d\u9762\u56db\u5341\u4e5d\u8f6e\u7684\u5b8c\u6574\u5386\u53f2\u539f\u5c01\u4e0d\u52a8\u5730\u585e\u7ed9\u6a21\u578b\u3002\u5386\u53f2\u8d8a\u6eda\u8d8a\u957f，\u8f93\u5165 token \u50cf\u6eda\u96ea\u7403\u4e00\u6837\u8d8a\u6eda\u8d8a\u5927，\u54ea\u6015\u4f60\u7684\u6a21\u578b\u4e0a\u4e0b\u6587\u7a97\u53e3\u6709 128K，\u4e5f\u67b6\u4e0d\u4f4f\u8fd9\u79cd<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[997,81,668],"topic":[],"class_list":["post-97900","post","type-post","status-publish","format-standard","hentry","category-server","tag-langchain","tag-python","tag-668"],"yoast_head":"\n\u4e0a\u4e0b\u6587\u538b\u7f29\u53cc\u5203\u5251-Summarization\u4e0eContextEditing\u4e2d\u95f4\u4ef6\u5b9e\u6218 - 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