2026 · HEALTH
Vitals
Turns Galaxy Watch and Fitbit data into a 30-second morning briefing you can act on.
NOW
I build AI tools in the gap between an idea and a working version.
Innovation Manager at Nestlé. This site is a personal project, shared as I go: things I build in my free time to explore ideas I can't test fast enough inside a large organization.
See the work- Latest
- ShippedSolaar now shows its evidence before it releases anything
Nothing my AI agents build can go live until the architecture and security reviews are on record. Each specialist agent now starts with up to 78% less to read, and the safety checks behind every action run up to 88% faster. Updates now reach all 14 projects without silently failing. The full week is in Notes.
- Updated
- Oct 11, 2026
Work I've shipped.
2026 · EXPERIMENT
Solaar
A multi-agent agency that takes a project brief to a deployable repo in under 4 hours.
2026 · AI
LEGO MCP Server
Lets an AI agent look up a real LEGO part number instead of inventing one.
What I've been doing.
Oct 2026ShippedSolaar now shows its evidence before it releases anythingNothing my AI agents build can go live until the architecture and security reviews are on record. Each specialist agent now starts with up to 78% less to read, and the safety checks behind every action run up to 88% faster. Updates now reach all 14 projects without silently failing. The full week is in Notes.
Oct 2026ShippedAI assistants can now look up real LEGO part numbers, opens in new tabI built a small service that gives an AI assistant the real LEGO catalog to look things up in, so it stops guessing part numbers. It covers 65,000 parts, 275 colors and 28,000 sets, and it only reads data: it can't change anything. A personal project, not commercial.
Sep 2026Shippedmariansan.io is now easy for AI assistants to read, opens in new tabI added a plain-text summary of the whole site that AI assistants can read in one go, and checked that it passes a test for AI-readable pages (3 of 3, up from 1 of 2). The pages meant to be private stay closed to crawlers, and the rest welcome them, because the point of this site is to share what I learn.
Sep 2026ShippedSolaar was audited from the outside — and fixed what broke, opens in new tabI asked a separate AI (Claude Fable 5.1) to audit my team of AI agents, with one rule: prove everything. It found two real weak spots: a safety check that could never stop anything, and a guard that let 9 of 10 attempts to push code straight to the live branch slip through. Solaar fixed both, and GitHub now blocks those pushes, even for me. Then we re-tested instead of assuming. The push test passed 4 of 4. One rule still scores 1 of 4, and I'm working on it.
Sep 2026ShippedVitals: your night's data no longer gets lost, opens in new tabVitals could delete last night's snore data before the server confirmed it was saved. One bad connection, and the night was gone. Now the data waits safely on the phone until the server says “saved.” The sync status tells the truth, day by day, instead of a blanket “OK.” And automated tests now run the whole overnight flow before every push.
Working on something interesting? Write me.
I reply within 48 hours. Say hi, share something you're building, or just start a conversation.
Emailhello@mariansan.ioLocationPanama City · GMT-5