Dsh Jev — zhangxaochen

Pruning narrows dozens of tools to the top relevant ones, the loop guard catches semantic near-stalls that exact-match dedupe misses, and the safety guard screens shell and file operations in milliseconds. Result shaping stays off by default.

Per-arm means were 2 wins, 2 losses, and 13 ties with no net token saving and mixed wall-time effects. Eight saturated tasks and large within-arm spread left little power to detect an effect.

Jev handles only what DSH built-ins lack: semantic stalls, middle-selection shaping, and semantic risk verdicts. Exact repeats, truncation, and hard refusals stay with deterministic DSH mechanisms by design.

Install per profile from GitHub or npm with recent Node and DSH versions, noting the desktop profile needs in-app install. Put the key in the DSH env file or run against the mock, then toggle modules from the status bar.

About $0.00013 per decision, measured on 2026-09-20 over 2,254 decisions, each roughly 12.4 KiB of input billed at $0.042 per million input tokens with output free. The primitives themselves run at about 150 ms, and because verdicts come from System One rather than sampling they are described as fast and reproducible.

pnpm run verify:turn drives one full turn across every module with a real model and a real assembly. It pruned 12 tools to 5 in 2,139 ms, produced one skill advice in 979 ms, compressed a 32,680-character post-execute result to 237 characters in 586 ms, and reported 3,704 ms of semantic overhead. In verify:live a real loop scored pLoop 0.88 at confidence 0.81 and fired, while a healthy trajectory sat at pLoop 0.00 and did not.

Per profile, either from GitHub with dsh plugin --profile <name> add github:zhangxaochen/dsh-jev or from npm with dsh plugin --profile headless add dsh-jev; dsh plugin just forwards its arguments to pnpm. The desktop profile cannot be installed this way and needs the in-app entry or a sync into ~/.dsh/profiles/desktop/node_modules/dsh-jev. A status-bar jev switch turns modules on or off with no uninstall and no restart.