claude-model-upgrade

claude-model-upgrade is a skill for Claude Code from henkisdabro/wookstar-claude-plugins. It costs 139 tokens per session (1,594 once invoked), scanned A, original, no licence file.

A read-only scanner and updater for old Claude model ID references in skills, agents, prompts, settings, and code. It covers model families such as Opus, Sonnet, Haiku, and Fable, then asks for approval before editing.

In plain words
What is it for?
Use it to review and update Claude model IDs throughout a project.
Why use it?
It helps locate stale model names after a Claude release while keeping the initial scan separate from changes.

Skill for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Part of the model-id-upgrade plugin — 1 skill shipped together

Good fit Use it to review and update Claude model IDs throughout a project.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/henkisdabro/wookstar-claude-plugins/claude-model-upgrade
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 henkisdabro/wookstar-claude-plugins --skill claude-model-upgrade
Clone the repo
git clone --depth 1 https://github.com/henkisdabro/wookstar-claude-plugins

Made for: Claude Code.

Or install model-id-upgrade, the plugin that ships this one along with the rest of its 1 skill.

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 claude-model-upgrade

README.md
[![agentmods](https://agentmods.dev/badge/skills/henkisdabro/wookstar-claude-plugins/claude-model-upgrade/github.svg)](https://agentmods.dev/skills/henkisdabro/wookstar-claude-plugins/claude-model-upgrade)
Your own site
<a href="https://agentmods.dev/skills/henkisdabro/wookstar-claude-plugins/claude-model-upgrade"><img src="https://agentmods.dev/badge/skills/henkisdabro/wookstar-claude-plugins/claude-model-upgrade/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 claude-model-upgrade

Your own site · 80×15
<a href="https://agentmods.dev/skills/henkisdabro/wookstar-claude-plugins/claude-model-upgrade"><img src="https://agentmods.dev/badge/skills/henkisdabro/wookstar-claude-plugins/claude-model-upgrade.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 139 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,594 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 $0.00139 $0.01594
Opus 5.5 $0.00056 $0.00638
Sonnet 5.5 $0.00028 $0.00319
Haiku 4.5 $0.00014 $0.00159

Measured 11d ago against content hash 6a09e748602e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-model-upgrade 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 11d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/scan.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.

plugins/model-id-upgrade/skills/claude-model-upgrade/SKILL.md · 93 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 11d ago First seen · 93 lines · 139 tokens per session scan A 6a09e748602e

Subscribe to this mod's changes

claude-model-upgrade is a skill published in the GitHub repository henkisdabro/wookstar-claude-plugins (92 stars, last pushed 12d ago), with no licence file. It adds 139 tokens to every session and 1,594 once invoked, about $0.0006 per session on Opus 5.5. 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 2026-10-05.

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