cubepi

Use when building, extending, or debugging agents with the CubePi framework. Covers the Agent API, providers, tools, middleware, checkpointing, MCP integration, and HITL. References the cubepi-trace skill for run debugging.

Use when debugging a cubepi/cubebox agent run — a missing final reply, a tool that misbehaved, a 4xx from the model, wrong token/cache numbers, or "why did the agent do that?". Reads the JSONL traces cubepi writes per run via the `cubepi trace` CLI (ls / view / follow / stats) to inspect the span tree, errors, tool inputs/outputs, and token usage. Triggers on phrases like "查一下这个 run", "trace 一下", "为什么最后一轮没回复", "工具结果不对", "看 trace".