jev-model-router

jev-model-router is a plugin for Claude Code from davila7/claude-code-templates. Its token cost is not measured, scanned A, original, MIT.

A task-based model router that chooses an AI model and reasoning effort for each request. It routes choices for both the main assistant loop and separately started assistant workers.

In plain words
What is it for?
Use it when different tasks may need different models or amounts of reasoning. It makes these choices at assistant-worker startup and at each main-loop step.
Why use it?
It removes the need to select the same model and reasoning level manually for every task. It can use TypeSafe's service, the Vercel AI Gateway, or the engine's built-in fallback classifier.

Plugin for Claude Code

Written for Claude Code: a Claude Code plugin manifest. Also seen: mentions subagents.

Good fit Use it when different tasks may need different models or amounts of reasoning. It makes these choices at assistant-worker startup and at each main-loop step.

Compare 6 plugins from other repositories ↓
Install in Claude Code
/plugin marketplace add davila7/claude-code-templates
/plugin install jev-model-router
About the project

Claude Code Templates is a command-line tool and catalogue for configuring Anthropic’s Claude Code with agents, commands, settings, hooks, integrations, skills, and project templates. Developers use it to browse and install reusable components for their coding workflows. The catalogue includes many of these Claude Code components.

davila7/claude-code-templates · 33,152 stars · on GitHub · aitmpl.com

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/davila7/claude-code-templates

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Your own site
<a href="https://agentmods.dev/plugins/davila7/claude-code-templates/jev-model-router"><img src="https://agentmods.dev/badge/plugins/davila7/claude-code-templates/jev-model-router/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for jev-model-router

Your own site · 80×15
<a href="https://agentmods.dev/plugins/davila7/claude-code-templates/jev-model-router"><img src="https://agentmods.dev/badge/plugins/davila7/claude-code-templates/jev-model-router.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

jev-model-router scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

cli-tool/components/mods/productivity/jev-model-router/.claude-plugin/plugin.json · 130 lines

How it starts

The opening of the file, as written. The whole thing — 130 lines — stays where its author put it; the contents beside it link to each section on GitHub.

{
  "name": "jev-model-router",
  "version": "0.4.2",
  "description": "Picks the model and the reasoning effort for each task with TypeSafe's Jev, a System One decision model reached either through TypeSafe's own API or the Vercel AI Gateway. Routes subagent models at agent.spawn and the main loop's effort and model at turn.step, in both directions, falling back to the engine's built-in classifier when no key is set.",
  "author": {
    "name": "claude-code-templates",
    "url": "https://www.aitmpl.com"
  },
  "repository": "https://github.com/davila7/claude-code-templates",
  "license": "MIT",
  "keywords": [
    "mod",
    "function-hooks",
    "productivity",
    "routing"
  ],
  "userConfig": {
    "typesafeApiKey": {
      "type": "string",
      "title": "TypeSafe API key",
      "description": "Key for TypeSafe's own API; preferred over the Gateway, since only it reports a calibrated confidence",
      "default": "",
      "sensitive": true
    },
    "gatewayApiKey": {
      "type": "string",
      "title": "Vercel AI Gateway API key",
      "description": "Key for the AI Gateway; with none set the engine's built-in classifier is used instead",
      "default": "",
      "sensitive": true
    },
    "provider": {
      "type": "string",
      "title": "Backend",
      "description": "Which backend to use; \"auto\" picks TypeSafe when its key is set, then the Gateway, then the built-in classifier",
      "default": "auto",
      "options": [
        "auto",
        "typesafe",
        "gateway",
        "builtin"
      ]
    },
    "typesafeBaseUrl": {
      "type": "string",
      "title": "TypeSafe base URL",
      "description": "Base URL of TypeSafe's own API; empty uses https://api.typesafe.ai",
      "default": ""
    },
    "typesafeModel": {
      "type": "string",
      "title": "TypeSafe model",
      "description": "Decision model on TypeSafe's own API; empty uses jev-latest",
      "default": ""
    },
    "gatewayBaseUrl": {
      "type": "stri

Read the full file on GitHub · 130 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 130 lines scan A 2519b974e9e7

Subscribe to this mod's changes

jev-model-router is a plugin published in the GitHub repository davila7/claude-code-templates (33,152 stars, last pushed yesterday), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-20.

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