# Crun Model Router

> Select and inspect an appropriate Crun image, video, audio, music, or media-tool model from a structured user intent. Use when the user describes the desired media result but does not provide an exact Crun model, or asks for a speed, quality, reference-media, or native-audio tradeoff.

- Skill: `crunteam/crun-model-router` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add crunteam/crun-model-router`
- Raw SKILL.md: https://api.skillmd.com/api/skills/crunteam/crun-model-router/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: CrunTeam (https://skillmd.com/u/crunteam)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/crunteam/crun-model-router

---


# Crun Model Router

Use `../../runtime/crun_cli.py` and `../../catalog/models.json`. Treat the catalog as the source of truth for routing labels and priority, and the authenticated Models endpoint as the source of truth for the selected model's current input schema.

## Build routing intent

Normalize the request into one JSON object:

```json
{
  "modality": "image|video|audio",
  "operation": "text-to-image|image-edit|text-to-video|image-to-video|reference-to-video|text-to-speech|music-generate|...",
  "quality": "balanced|best",
  "speed": "balanced|fast",
  "native_audio": false,
  "reference_media": []
}
```

Preserve explicit constraints. Infer the operation from supplied media only when unambiguous.

## Route and inspect

Prefer a JSON file or stdin for portable invocation:

```text
python <runtime>/crun_cli.py models route --intent-file <intent.json>
python <runtime>/crun_cli.py models describe --model <selected-model>
```

Use `selected` by default. Present `alternatives` only when their tradeoffs matter or the user asks. Read `required_input_fields` and `input_schema`, then ask only for required information that cannot be derived. Never invent fields or copy a sibling model's schema.

Use `models list` when the static candidate is rejected or missing. Never infer capability or priority from a model name or schema; update `models.json` explicitly. Report a hard-constraint conflict instead of weakening it silently.

After routing, hand off affordability checks to `../crun-account-credits/SKILL.md` and all creation or monitoring work to `../crun-task-runner/SKILL.md`.