Takeaway: I'd start next time by directly asking to pull and diff the actual CLI source for both agents instead of starting with docs, since that's what actually settled the questions (unpacking the npm tarballs and running `amp tools show`).
Takeaway: I'd start by pointing the agent straight at the specific subsystems I care about (permissions, memory/compaction, sub-agents) instead of letting it wander the whole repo tree first — that would have gotten to the comparison faster.
Takeaway: I'd start the next prompt by asking explicitly whether the underlying MCP server has known state-persistence issues, since that turned out to be the crux of the whole build.