Individual skill
jev-model-routing
Use to pick the cheapest good-enough model or effort for a turn or a delegated task (lanes small to escalate), to decide continue/retry/verify/escalate/complete after each cycle, or to tune routing.
skills/jev-model-routing/SKILL.md
Source commit 12a7a703ed8069f0c4791844bbb807f2b2d5299c
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- No
- Repository scan complete
- No
- Skill scan complete
- No
- Observed behavior
- Not checked yet
- Last checked
- Nov 12, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
Install this skill
Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.
An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.
Repository context
- Repository stars (not skill ratings)
- 1,337
- Repository last updated
- Nov 11, 2026
- License
- MIT
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- engineering Derived category
Files and excerpt
File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.
Read excerpt
# Model routing with Jev
Jev reads a turn and answers three questions in one ~0.4 s request: how hard is it, what kind of work is it, and would a mistake be costly. Code then walks your pool for that tier and specialty and takes the first model that fits (images, context size). You do not pick models by feel; you ask.
## On Hermes it is automatic
With the `hermes-jev` plugin enabled, each fresh user turn is routed once, before the first model call. Tool-loop follow-ups reuse that decision only while provider, endpoint, host model and outgoing request model remain unchanged. A mismatch disables routing for the rest of that turn, including an A → B → A return, without buying another classifier answer. If the first outgoing model disagrees with host metadata, retain the outgoing request and do not classify; equivalent provider prefixes are normalized. The next turn resets the decision. Endpoint bindings stay in memory and are not written to telemetry. Switches, per profile:
```
/jev status
/jev routing shadow decide and log, but do not switch (start here)
/jev routing on switch models
/jev routing off
/jev notice on show "[Jev] medium · coding → kimi-k2.7-code · confidence 0.97" on routed replies