hf-cache-models

hf-cache-models is a skill for Claude Code, Codex from Blaizzy/mlx-vlm. It costs 60 tokens per session (592 once invoked), scanned A, original, MIT.

A workflow for finding MLX-VLM-compatible models already stored in a local Hugging Face cache. It checks files and revisions without loading the models or proving they can generate text.

In plain words
What is it for?
Use it to list, inspect, or report cached models, change the cache directory, enable architecture checks, produce JSON, or prepare an issue-ready model list.
Why use it?
It avoids manually searching cache folders and clarifies which cached models meet the server’s discovery rules. An optional architecture check provides a stronger hint that a model may load.

Skill for Claude CodeCodex

Part of the mlx-vlm-skills plugin — 8 skills shipped together

About the project

MLX-VLM is a Python package for running inference and fine-tuning vision-language models, which process images and text together, on Mac computers using MLX. It is used by developers working with multimodal models and includes command-line, web, server, scripting, and training workflows.

Blaizzy/mlx-vlm · 5,466 stars · on GitHub

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.

agentmods
npx agentmods add skills/blaizzy/mlx-vlm/hf-cache-models
Any agent
npx skills add Blaizzy/mlx-vlm --skill hf-cache-models
Clone the repo
git clone --depth 1 https://github.com/Blaizzy/mlx-vlm

Made for: Claude Code, Codex.

Or install mlx-vlm-skills, the plugin that ships this one along with the rest of its 8 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for hf-cache-models

README.md
[![agentmods](https://agentmods.dev/badge/skills/blaizzy/mlx-vlm/hf-cache-models.svg)](https://agentmods.dev/skills/blaizzy/mlx-vlm/hf-cache-models)
Your own site
<a href="https://agentmods.dev/skills/blaizzy/mlx-vlm/hf-cache-models"><img src="https://agentmods.dev/badge/skills/blaizzy/mlx-vlm/hf-cache-models.svg" alt="Measured on agentmods" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 592 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00060 $0.00592
Opus 5 $0.00030 $0.00296
Sonnet 5 $0.00012 $0.00118
Haiku 4.5 $0.00006 $0.00059

Measured 5d ago against content hash 12c61061e272, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

hf-cache-models scanned grade A with 1 finding 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 5d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/list_supported_hf_cache_models.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- whether the list came from the script or from `curl http://127.0.0.1:8080/v1/models`
skills/skills/hf-cache-models/SKILL.md · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

HF Cache Models

Use this workflow to list locally cached Hugging Face models that MLX-VLM can expose when Hugging Face cache discovery is explicitly enabled.

Supported Model Rule

Match the server /v1/models filter used with --model-discovery hf-cache:

  • repo type is model
  • main revision exists in the cache
  • config.json exists
  • tokenizer_config.json exists
  • either model.safetensors.index.json exists or at least one *.safetensors file exists

This is a cache/file-presence check that mirrors the server's opt-in hf-cache discovery mode (mlx_vlm/server/app.py). It does not load the model, prove generation works, or affect the default served listing. Pass --check-arch to additionally require that mlx-vlm ships an architecture for the model_type — this narrows the list from a cache candidate to probably loadable (folder-name match; it does not resolve MODEL_REMAPPING aliases, so use it as a strong hint, not proof).

Script

Use the bundled script instead of rewriting cache-scanning logic:

uv run python skills/skills/hf-cache-models/scripts/list_supported_hf_cache_models.py

JSON output:

uv run python skills/skills/hf-cache-models/scripts/list_supported_hf_cache_models.py --json

Only models mlx-vlm can actually load (architecture present, not just files present):

uv run python skills/skills/hf-cache-models/scripts/list_supported_hf_cache_models.py --check-arch

Custom cache directory:

uv run python skills/skills/hf-cache-models/scripts/list_supported_hf_cache_models.py \
  --cache-dir /path/to/huggingface/cache

Reporting

When reporting the result, include:

  • cache directory used, if non-default
  • number of supported models
  • exact model IDs
  • whether the list came from the script or from curl http://127.0.0.1:8080/v1/models

For Hugging Face cache-discovery verification, start the server with --model-discovery hf-cache and compare with:

curl http://127.0.0.1:8080/v1/models

Read the full file on GitHub · 66 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 66 lines · 60 tokens per session scan A 12c61061e272

Subscribe to this mod's changes

hf-cache-models is a skill published in the GitHub repository Blaizzy/mlx-vlm (5,466 stars, last pushed yesterday), licensed MIT. It adds 60 tokens to every session and 592 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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