Show HN: PMB – local memory for coding agents that shows if it is used

We really need a "memory arena" to serve two important purposes:

1. List all the known agent memory projects (of which there are hundreds)\ 2. Objectively compare and score them both against each other and vanilla harnesses like Claude Code

Only then can I have the cognitive capacity to decide which one makes sense for me.

This looks like something I'd need - AGENTS.md only gets you so far. Does anyone have experience with using memory like this?

My main concern is that it can overwhelm the context window with useless facts.

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