model_only

model_only is a skill for Claude Code, Codex from maris205/open-rosalind. It costs 17 tokens per session (300 once invoked), scanned A, original, no licence file.

A routing instruction that sends questions requiring no external tool to the language model and marks them as not using a tool.

In plain words
What is it for?
It is for routing non-tool questions directly to the language model with clear no-tool labelling.
Why use it?
It makes the handling of ordinary questions explicit when no tool or external data is needed.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit It is for routing non-tool questions directly to the language model with…

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Install with agentmods
npx agentmods add skills/maris205/open-rosalind/model_only
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.

Any agent
npx skills add maris205/open-rosalind --skill model_only
Clone the repo
git clone --depth 1 https://github.com/maris205/open-rosalind

Made for: Claude Code, Codex.

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 model_only

README.md
[![agentmods](https://agentmods.dev/badge/skills/maris205/open-rosalind/model_only.svg)](https://agentmods.dev/skills/maris205/open-rosalind/model_only)
Your own site
<a href="https://agentmods.dev/skills/maris205/open-rosalind/model_only"><img src="https://agentmods.dev/badge/skills/maris205/open-rosalind/model_only.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 300 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 5.1 $0.00017 $0.00300
Opus 5 $0.00009 $0.00150
Sonnet 5 $0.00003 $0.00060
Haiku 4.5 $0.00002 $0.00030

Measured 7d ago against content hash fd799f68b8a8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

model_only 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 7d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (__init__.py, handler.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.

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.

open_rosalind/skills_v2/model_only/SKILL.md · 38 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

3 files 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. 7d ago First seen · 38 lines · 17 tokens per session scan A fd799f68b8a8

Subscribe to this mod's changes

model_only is a skill published in the GitHub repository maris205/open-rosalind (12 stars, last pushed 9d ago), with no licence file. It adds 17 tokens to every session and 300 once invoked, about $0.0001 per session on Opus 5. 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 2026-08-30.