Saar Arbel

Role

Builder/owner of “the Brain” — an LLM-maintained company context OS being prototyped inside monday. Currently in early/exploratory phase (“bosr” — immature) but with conviction the underlying problem is real and the market is willing to spend.

Affiliations

• monday — building the Brain prototype

Notes

• Hosted the 2026-05-06-brain-os-strategy-brainstorm session.
• Working theory: the Brain must be agent-native from day 1, since within 1–2 years most work will be done by agents on behalf of humans. The product is not “do work for you” — it’s “make your agents better at doing your work.”
• Acknowledges the prototype currently won’t scale to a large org; has been thinking about scale/rags solutions overnight but is confident the engineering is solvable.
• Believes the differentiation challenge is sharpening the value proposition vs. competitors like glean, not the engineering.
• Updated framing as of 2026-05-27: explicitly stepped off the agentic-org horizontal pitch (“everyone is approaching that”) and onto vertical use-case-led Brain. Anchor anecdote: a recent meeting with ari-leshno (an ophthalmologist) where Brain-as-context plausibly transforms clinic operations. See vertical-use-case-led-brain.
• Sceptical of the prediction-markets-regulatory-play tangent — argued winner-toto is “a well-oiled machine, statisticians and all” — but did not block exploration.
• Heavy critic of agent slop: the monday-agents-month catalog is “mostly slop”; the value test is whether a real painful workflow gets unlocked.
• Wedding upcoming (date not captured); referenced in the meeting as light agenda context.

Mentioned in

• 2026-05-06-brain-os-strategy-brainstorm — host; presented the prototype and led discussion on agent-native positioning.
• 2026-05-19-saar-leshno-glaucoma-data-tracking — met ari-leshno (intro by Ohad) to scope the glaucoma visual-field-tracking opportunity; the conversation became the anchor anecdote one week later.
• 2026-05-27-directions-vertical-pivot-and-prediction-markets — co-driver of the vertical-use-case-led pivot; introduced the ari-leshno anecdote.
• 2026-05-31-directions-connect-businesses-and-brain-scaling — demoed a Brain-on-Claude-project ideation tool with a 10-criteria scorecard for strategic directions; will provision Guy + Nizan as Brain repo collaborators and pair-install with Guy this week. Reinforced that vertical determines the data model.
• 2026-06-02-directions-account-management-vertical — demoed the daniela AM Brain (built from her last ~100 call transcripts); explained the index.md + graph-traversal architecture that keeps performance tractable at current scale; explained prior revenue-intelligence work at Monday; began the Harmony AM pilot.