E2 · artifact verifiedFeatured
Choose drone tactics from camera-derived state
A simulated quadrotor uses Jev for low-frequency tactical judgments while classical vision, flight control, and safety reflexes remain in code.
choicescorenoulrobotics
Independent capability index · 2026
What can Jev actually do?
Jev is TypeSafe's System One model. It does not chat. It returns typed decisions your code can act on. Explore what has been publicly demonstrated, with evidence and limitations.
Unofficial and independent. Every published capability links to evidence and shows how it was verified.
Public evidence ledger
Verified capabilities
13 of 13 records
- E2 · artifact verifiedFeatured
Complete a StarCraft shareware mission
A reproducible harness lets Jev direct combat, exploration, and economy actions in the original StarCraft shareware campaign.
choicegames - E2 · artifact verifiedFeatured
Drive macOS from structured screen state
A computer-use loop combines OCR and accessibility data, then asks Jev which bounded action should move the Mac toward a plain-English goal.
choicenoulagentsautomation - E2 · artifact verifiedFeatured
Search Google Flights in seconds
A browser agent turns the visible DOM into an indexed action space and uses Jev to choose the next operation and compatible target.
choiceagentsautomation - E2 · artifact verifiedFeatured
Turn Home Assistant state into automation signals
A Home Assistant integration exposes Jev probabilities, choices, and scores as entities and action responses that automations can use.
choicescorenoulhomeautomation - E2 · artifact verified
Choose a market quote every Monad block
A trading loop reads the Kuru MON-USDC order book and asks Jev for a buy-or-sell judgment before code places a post-only limit order.
choicetradingautomation - E2 · artifact verified
Expose typed Jev judgments to MCP agents
An MCP server gives compatible agents tools for classification, scoring, checking, matching, screening, and custom typed Jev questions.
choicescorenoulagentsdeveloper tools - E2 · artifact verified
Gate risky coding-agent tool calls
A Pi extension asks Jev to flag destructive, exfiltrating, or out-of-scope tool calls and to classify failures in command output.
choicescorenoulagentsdeveloper tools - E2 · artifact verified
Play Super Mario from emulator state
An experimental controller translates NES telemetry into object-centric JSON and lets Jev choose the next legal controller macro.
choicescorenoulgames - E2 · artifact verified
Prune stale coding-agent tool history
A Pi extension uses Jev to decide which old tool calls and results still matter while keeping conversation text verbatim.
noulagentsdeveloper tools - E2 · artifact verified
Remove ad-like DOM elements in Chrome
A Chrome extension finds ad-shaped DOM candidates and asks Jev whether each candidate is a paid advertisement before code removes it.
noulautomation - E2 · artifact verified
Route focused code-review investigations
A staged review workflow uses Jev to identify risky areas, select evidence, classify mechanisms, score severity, and route follow-up checks.
choicescorenouldeveloper tools - E2 · artifact verified
Supervise a coding agent while it works
Foreman runs an independent observation loop that asks Jev whether a coding worker is progressing, stuck, complete, or ready for verification.
noulagentsdeveloper tools
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