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调用值函数迭代 / 策略迭代 / 投影法求解动态规划。当用户说"VFI"、"PFI"、"值函数迭代"、"projection"、"全局解"、"非线性求解"时调用。
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| name | solve-vfi |
| description | 调用值函数迭代 / 策略迭代 / 投影法求解动态规划。当用户说"VFI"、"PFI"、"值函数迭代"、"projection"、"全局解"、"非线性求解"时调用。 |
| type | solver |
| 字段 | 类型 | 说明 |
|---|---|---|
model_name | str | 已通过 model-reviewer |
method | enum | vfi / pfi / egm / chebyshev / spline |
tol | float | 默认 1e-6（值函数）/ 1e-8（策略） |
max_iter | int | 默认 2000 |
output/checkpoints/<model>_ss.json（或确定性边界值）作为初值。output/checkpoints/<model>_policy.json。numerics-reviewer 检查收敛诊断。| 文件 | 必产 | 说明 |
|---|---|---|
output/checkpoints/<model>_policy.json | ✅ | 含策略 / 值函数 |
logs/<model>_vfi_<ts>.log | ✅ | 迭代日志 |
quality_reports/<model>_numerics_review_<ts>.md | ✅ |
numerics-reviewer 直接进入 IRF| 症状 | 处理 |
|---|---|
| 必备前置未满足 | 报错并指出缺什么；不绕过 |
| 上游产物 stale | 重跑上游 skill；不"凭旧的 checkpoint 继续" |
| 用户口径模糊 | 调用 interview-me skill 反向访谈 |