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skyrimvr-claude-toolkit: Skill for Claude Code

.agents/skills/skyrim-nif/SKILL.md

skyrim-nif is a skill for Claude Code from WingedGuardian/skyrimvr-claude-toolkit. It costs 79 tokens per session (2,456 once invoked), scanned A, original, MIT.

A tool for inspecting and editing NIF mesh files, a 3D model format used by Skyrim and related games. It can examine model structure, textures, strings, shaders, and integrity.

In plain words
What is it for?
Use it to inspect textures and node names, check shader details, verify meshes, replace textures, rename nodes, fix eye artifacts, resize models, and restore backups.
Why use it?
It helps diagnose broken or incompatible game models, including mesh problems that can cause crashes in Skyrim VR. It also supports controlled model and texture changes.

Skill for Claude Code

Written for Claude Code: paths in frontmatter. Also seen: installed under .agents/ (shared by several agents).

This is WingedGuardian/skyrimvr-claude-toolkit's own configuration. It tells Claude Code how to work on skyrimvr-claude-toolkit 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 skyrimvr-claude-toolkit configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is bash tools/automod-cli.sh nif <command> [args] --json.

not rated 21repo +2 changed 26d ago A scan SkillSpector: pass 79 tokens original MIT
View source ↗ WingedGuardian/skyrimvr-claude-toolkit
Reuse

Borrowing it

Nothing to install: this file belongs to WingedGuardian/skyrimvr-claude-toolkit. 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/WingedGuardian/skyrimvr-claude-toolkit/master/.agents/skills/skyrim-nif/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/WingedGuardian/skyrimvr-claude-toolkit

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Your own site · 80×15
<a href="https://agentmods.dev/skills/wingedguardian/skyrimvr-claude-toolkit/skyrim-nif"><img src="https://agentmods.dev/badge/skills/wingedguardian/skyrimvr-claude-toolkit/skyrim-nif.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 79 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,456 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 5.1 $0.00079 $0.02456
Opus 5.5 $0.00032 $0.00982
Sonnet 5.5 $0.00016 $0.00491
Haiku 4.5 $0.00008 $0.00246

Measured 26d ago against content hash 94c79da02975, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skyrim-nif 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 26d 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.

.agents/skills/skyrim-nif/SKILL.md · 166 lines

How it starts

The opening of the file, as written. The whole thing — 166 lines — stays where its author put it; the contents beside it link to each section on GitHub.

NIF Mesh Operations

Use the AutoMod CLI for texture, string and shader work (always with --json); PyFFI and PyNifly (below) cover geometry and animation.

bash tools/automod-cli.sh nif <command> [args] --json

Read-Only Commands

  • nif info <path> — file version, size, structure
  • nif list-textures <path> — all texture references (supports recursive folder)
  • nif list-strings <path> — all string entries / node names
  • nif shader-info <path> — shader property details
  • nif verify <path> — integrity check

AutoMod nif cannot inspect Havok collision (bhk*) blocks — it handles textures/strings/shaders only. Use NifSkope or a purpose-built parser (PyFFI, below) for collision.

Write Commands (always confirm with user first)

  • nif replace-textures <path> --old <str> --new <str> [--dry-run] [--backup] — batch retexture
  • nif rename-strings <path> --old <str> --new <str> [--dry-run] [--backup] — rename nodes
  • nif fix-eyes <path> [--dry-run] [--backup] — fix FaceGen eye ghosting
  • nif scale <path> <factor> [--output <path>] — resize mesh
  • nif restore <path> — restore from .nif.bak backup

VR-Critical Mesh Issues

  • PreWEAPON and PreSHIELD skeleton nodes cause CTD in VR — use nif list-strings to check for these, then nif rename-strings to remove the "Pre" prefix or delete the nodes
  • VR does a text-contains search for WEAPON/SHIELD nodes and gets confused by Pre* prefixes
  • XP32 First Person Skeleton CTD Bugfix is critical for custom skeleton users in VR

Geometry & Animation Authoring (PyFFI / PyNifly)

AutoMod handles textures/strings/shaders/scale but NOT geometry rewrites or animation. For those:

  • PyFFI (any modern Python + setuptools) — LE-format NiTriShape geometry edits: vertex shifts, bounds, collision/ shader tweaks, and mesh split/subdivision. tools/pyffi-geometry-split.py splits one shape into two so each half can carry its own shader (e.g. partial-mesh glow without UV overlap). Limits: cannot read SSE BSTriShape; never author animation controllers with PyFFI — the written file passes PyFFI's own readback but CTDs the engine.
  • PyNifly — reads/writes SSE BSTriShape AND authors animation/controller blocks correctly (NiControllerManager / NiControllerSequence / NiTransformData, etc.). Use it for:
    • Self-spinning effect meshes — a SpecialIdle-named NiControllerSequence auto-loops on a placed Activator with zero scripting.
    • Telescoping / transforming geometry and any keyframed mesh motion.
    • As the independent parse gate for any authored/edited NIF (see below).

Read the full file on GitHub · 166 lines

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. 26d ago Changed · +14 lines 94c79da02975
  2. 1mo ago Changed · +76 lines · +45 tokens per session 16a6254e9488
  3. 2mo ago First seen · 76 lines · 34 tokens per session scan A 4ba0deaa46c6

Subscribe to this mod's changes

skyrim-nif is a skill published in the GitHub repository WingedGuardian/skyrimvr-claude-toolkit (21 stars, last pushed yesterday), licensed MIT. It adds 79 tokens to every session and 2,456 once invoked, about $0.0003 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 development
Related

skyrim-nif compared with skills from other repositories

skyrim-nif next to 6 skills from other repositories
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skyrim-nifWingedGuardian/skyrimvr-claude-toolkitSkill21yesterdayMITA79Claude Code
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godot-signals-groupsgamedev-skills/awesome-gamedev-agent-skillsSkill6.9k9d agoApache-2.0A95Claude Code
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unity-addressablesBesty0728/Unity-SkillsSkill1.9kyesterdayMITA25Claude Code, Codex
unity-manual-componentBesty0728/Unity-SkillsSkill1.9kyesterdayMITA36Claude Code, Codex