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The check that said no
We spent a day fixing the same bug six times across our own estate: a check that reports green while measuring nothing. Then Warden caught us doing it too — and refused the commit. That refusal is the product.
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The drift nobody checks for
Roady v0.16 learned to catch a plan the repository has quietly moved past — the way planning actually goes stale. We ran it on ourselves first. It found 89 days of drift in under a second, and the thread we pulled produced five releases in a day.
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Is the brain healthy?
Most memory for AI is a database with an embedding index. Mnemos is a brain: it consolidates while you are away, forgets what stopped mattering, and takes its own vital signs. This is how it measures the health of what it believes — five cognitive vitals, one verdict — and what running one in production taught us about counting the right thing.
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The tool was guessing
We built a tool to tell an AI agent when it was about to hit its rate-limit cap. A code review found it was answering with a guess — while the real number sat unread in its own database. Here is the bug, and why it is the most dangerous kind.
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From store to brain
A memory library that only writes and reads is missing the interesting half. What building the other half — consolidation, forgetting, salience, self-correcting recall, and metacognition — taught us, with no language model in the loop.
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800 to 1
We set out to cut the token bill on our AI-assisted coding. The popular fix — make the model talk in terse shorthand — turned out to touch about 1% of it. Here is what the numbers actually showed, and the tool we built and open-sourced to find out.
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Meet Mnemos
AI agents forget everything the moment a session ends, and most “memory” products just bolt fuzzy search onto a pile of text. Mnemos is different: an open-source memory layer that stores facts with evidence, surfaces contradictions instead of silently overwriting, and forgets what stopped mattering — a brain for your agents, running on your own machine. Here is what it does, and how people use it.