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houseCARL: Skill for Claude Code

.claude/skills/mutagen-reference/SKILL.md

mutagen-reference is a skill for Claude Code from Avick3110/houseCARL. It costs 129 tokens per session (5,395 once invoked), scanned A, original, GPL-3.0.

A reference skill for Skyrim records, which are structured game data entries such as armor, weapons, magic effects, and characters. It lists each record type's fields, data types, writable status, and allowed values.

In plain words
What is it for?
Use it before inspecting, editing, or patching Skyrim records, or when you need to know which fields a particular record type contains.
Why use it?
It reduces the risk of reading or changing a record with the wrong field names, value types, or legal options. It also answers questions about xEdit record signatures and fields.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is Avick3110/houseCARL's own configuration. It tells Claude Code how to work on houseCARL itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything houseCARL configures →

not rated 52repo changed 1mo ago A scan 129 tokens GPL-3.0
View source ↗ Avick3110/houseCARL
Reuse

Borrowing it

Nothing to install: this file belongs to Avick3110/houseCARL. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Avick3110/houseCARL/main/.claude/skills/mutagen-reference/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Avick3110/houseCARL

Made for: Claude Code.

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 mutagen-reference

README.md
[![agentmods](https://agentmods.dev/badge/skills/avick3110/housecarl/mutagen-reference/github.svg)](https://agentmods.dev/skills/avick3110/housecarl/mutagen-reference)
Your own site
<a href="https://agentmods.dev/skills/avick3110/housecarl/mutagen-reference"><img src="https://agentmods.dev/badge/skills/avick3110/housecarl/mutagen-reference/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 mutagen-reference

Your own site · 80×15
<a href="https://agentmods.dev/skills/avick3110/housecarl/mutagen-reference"><img src="https://agentmods.dev/badge/skills/avick3110/housecarl/mutagen-reference.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 129 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,395 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 $0.00129 $0.05395
Opus 5.5 $0.00052 $0.02158
Sonnet 5.5 $0.00026 $0.01079
Haiku 4.5 $0.00013 $0.00539

Measured 1mo ago against content hash 9ffa873f6195, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mutagen-reference 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.

.claude/skills/mutagen-reference/SKILL.md · 181 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

7 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. 1mo ago Changed · +1 lines 9ffa873f6195
  2. 1mo ago Changed · +18 lines 99d373f92032
  3. 1mo ago Changed · +19 lines · +34 tokens per session 1814ebaff233
  4. 2mo ago First seen · 143 lines · 95 tokens per session scan A 92d3e73057b4

Subscribe to this mod's changes

mutagen-reference is a skill published in the GitHub repository Avick3110/houseCARL (52 stars, last pushed yesterday), licensed GPL-3.0. It adds 129 tokens to every session and 5,395 once invoked, about $0.0005 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 2026-08-30.

Game developmentmcpmod-organizer-2moddingmutagenpapyrusskyrim
Related

mutagen-reference compared with skills from other repositories

mutagen-reference next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
mutagen-referenceAvick3110/houseCARLSkill52yesterdayGPL-3.0A129Claude Code
rimworld-moddingKon-on/rimworld-modding-skillSkill2119d agoMITA144Claude Code, Codex
cities2-mod-debuggingmayor-modder/Cities2-MCPSkill106d agoMITA41Codex
cities2-moddingmayor-modder/Cities2-MCPSkill106d agoMITA43Codex
cities2-knowledgemayor-modder/Cities2-MCPSkill106d agoMITA29Codex
cities2-mod-reviewmayor-modder/Cities2-MCPSkill106d agoMITA35Codex
cities2-mod-releasemayor-modder/Cities2-MCPSkill106d agoMITA35Codex