I opened Claude to reason about a schema change. Then Cursor, to make it. Then Claude again the next morning, because th...

I opened Claude to reason about a schema change. Then Cursor, to make it. Then Claude again the next morning, because the session was gone.Each of those was a cold start. Same repo, same decision history, same five files re-read from scratch, same explanation of why the Order → Payment edge is nullable typed out for the third time. Nothing in that sequence was new information. All of it was billed.That's the part of agent memory that bothers me more than forgetting. Forgetting is annoying. Re-reading is expensive, and it's expensive in a way that scales with how useful the agent is — the more context it needs, the more you pay to rebuild it, every session, in every tool.MCP is the obvious place to fix this, and mostly it isn't used that way. Most MCP servers are verbs: send the message, open the PR, run the query. Very few are a place where context lives. Where the tokens actually goDo the arithmetic on a normal session. Twelve files at 400 lines each is somewhere north of 60k tokens b...