记忆截断
Only the latest result survives FIFO truncation.
本地计算 / 模拟本地教学实验，不调用外部 API。合成示例不能替代生产环境测量。
学习指南与本课目录
LEARNING CONTRACT理解 → 实现 → 研究
目标：解释本课机制、复现一个例子、测试一个失败案例。读完不自动代表掌握。
- 理解层：写明假设、形状/单位和一个反例。
- 实现层：复算数值例子并检查边界。
- 研究层：在匹配预算下比较一个替代方法。
02 · 预测与配置
技术场景说明、参数名称与参考答案目前为英文。
03 · 检查证据
方法与参考资料
A deterministic state machine executes your plan against mock tools, not an autonomous language model. Each executed tool costs a synthetic $0.01. The write action never changes external data. Each mock result is truncated to 1,000 characters to bound memory. Guards are illustrative policy rules, not a complete security system.
Text / 原始公式
Plan → allowlist → approval → budget → mock tool → FIFO memory → next step
A tool allowlist alone cannot prevent data exfiltration or prompt injection in a real agent.
ReAct · reasoning and tool actions ↗练习题
agent-5 / 01What does “Memory truncation” test?
Only the latest result survives FIFO truncation.
Original teaching answer / local derivation. Method reference: ReAct · reasoning and tool actions ↗
打开实验 →agent-5 / 02Which computation produces the result in “Memory truncation”?
Plan → allowlist → approval → budget → mock tool → FIFO memory → next step
Original teaching answer / local derivation. Method reference: ReAct · reasoning and tool actions ↗
打开实验 →agent-5 / 03What is the baseline configuration for “Memory truncation”?
{"plan":"search,calculator,recall","allowed":"search,calculator,recall,write","steps":6,"budget":0.1,"memory":1,"approval":0}
Original teaching answer / local derivation. Method reference: ReAct · reasoning and tool actions ↗
打开实验 →agent-5 / 04What numerical result should you check for “Memory truncation”?
{"Executed / observed steps":3,"Simulated cost (USD)":0.03,"Memory entries":1}
Original teaching answer / local derivation. Method reference: ReAct · reasoning and tool actions ↗
打开实验 →agent-5 / 05How would you run a controlled comparison for “Memory truncation”?
Keep the supplied fixture and other settings fixed; change steps. Inspect the trace, stopping reason, simulated spend and retained memory.
Original teaching answer / local derivation. Method reference: ReAct · reasoning and tool actions ↗
打开实验 →agent-5 / 06What failure could invalidate a conclusion from “Memory truncation”?
A tool allowlist alone cannot prevent data exfiltration or prompt injection in a real agent.
Original teaching answer / local derivation. Method reference: ReAct · reasoning and tool actions ↗
打开实验 →agent-5 / 07Is “Memory truncation” a benchmark of a deployed language model?
No. A deterministic state machine executes your plan against mock tools, not an autonomous language model. Each executed tool costs a synthetic $0.01. The write action never changes external data. Each mock result is truncated to 1,000 characters to bound memory. Guards are illustrative policy rules, not a complete security system.
Original teaching answer / local derivation. Method reference: ReAct · reasoning and tool actions ↗
打开实验 →agent-5 / 08Which evidence should you report for “Memory truncation”?
Inspect the trace, stopping reason, simulated spend and retained memory. Export inputs, engine, result and method; distinguish synthetic fixtures from observed production data.
Original teaching answer / local derivation. Method reference: ReAct · reasoning and tool actions ↗
打开实验 →agent-5 / 09How can another researcher reproduce “Memory truncation”?
Open agent-5, reset the preset, retain the exact inputs and run. The calculation is deterministic for identical inputs.
Original teaching answer / local derivation. Method reference: ReAct · reasoning and tool actions ↗
打开实验 →agent-5 / 10What is the next validation step after “Memory truncation”?
A tool allowlist alone cannot prevent data exfiltration or prompt injection in a real agent. Test the hypothesis on a representative held-out workload and document a baseline, success metric and stopping rule before claiming deployment readiness.
Original teaching answer / local derivation. Method reference: ReAct · reasoning and tool actions ↗
打开实验 →假设、参考实现与验收
工具预算为非负整数。执行前检查白名单，预算耗尽即停止。确定性 mock 测试编排逻辑，不代表 LLM 规划能力。
已复核引擎公式、场景预设及数值保护。固定种子的合成输入不是生产基准。
运行前：预测一个边界情况
Only the latest result survives FIFO truncation.
提示：隔离假设
固定基线输入，只改变一个参数或边界；同时比较数值与声明单位。单例通过仅验证该样例。
最小可运行算例
将算例及所链接模块保存在同一目录。使用 Node.js 22 或更高版本，然后运行 node agent-5.mjs. 无需第三方运行依赖。
import {calculate,network} from './academy-core.mjs';
const params={
"plan": "search,calculator,recall",
"allowed": "search,calculator,recall,write",
"steps": 6,
"budget": 0.1,
"memory": 1,
"approval": 0
};
const result=calculate('agent',params);
console.log(result.metrics);测试与迁移
Only the latest result survives FIFO truncation.
在下方笔记记录输入、代码版本、期望值和实测值；再构造违反上述假设的反例，解释原结论为何不再成立。
下载完整代码包（.tar.gz） · 完整参考代码与回归检查预测、检验与证据记录
展开答案前先预测一个结果；练习后记录差异和迁移测试。记录仅存本地，在不同语言版本间共用。
打开记录／导出／清除 →数学复核范围逐篇记录，不代表完成论文实证复现；可在笔记中记录疑似错误。 复核范围