nwn-mcp: Skill for Claude Code

.claude/skills/adventure-environment/SKILL.md

adventure-environment is a skill for Claude Code from Txpple/nwn-mcp. It costs 46 tokens per session (4,880 once invoked), scanned A, original, MIT.

A step that adds atmosphere to the areas of a Neverwinter Nights adventure. It places themed furniture, lights, containers, decorations, sounds, and map waypoints.

In plain words
What is it for?
Use it to decorate adventure areas and add ambient sounds and labeled waypoints without changing the main plot events.
Why use it?
It makes the locations reflect the plot and gives later steps a prepared environment to use for characters, quests, and challenges.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

This is Txpple/nwn-mcp's own configuration. It tells Claude Code how to work on nwn-mcp 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 nwn-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Txpple/nwn-mcp. 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/Txpple/nwn-mcp/master/.claude/skills/adventure-environment/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Txpple/nwn-mcp

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 adventure-environment

README.md
[![agentmods](https://agentmods.dev/badge/skills/txpple/nwn-mcp/adventure-environment/github.svg)](https://agentmods.dev/skills/txpple/nwn-mcp/adventure-environment)
Your own site
<a href="https://agentmods.dev/skills/txpple/nwn-mcp/adventure-environment"><img src="https://agentmods.dev/badge/skills/txpple/nwn-mcp/adventure-environment/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 adventure-environment

Your own site · 80×15
<a href="https://agentmods.dev/skills/txpple/nwn-mcp/adventure-environment"><img src="https://agentmods.dev/badge/skills/txpple/nwn-mcp/adventure-environment.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,880 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 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 $0.00046 $0.04880
Opus 5 $0.00023 $0.02440
Sonnet 5 $0.00009 $0.00976
Haiku 4.5 $0.00005 $0.00488

Measured 10d ago against content hash 009db3be29cd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

adventure-environment 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 10d 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/adventure-environment/SKILL.md · 360 lines

How it starts

The opening of the file, as written. The whole thing — 360 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Environment

Sub-skill of /create-adventure. Reads the plot and areas sections of adventure.md, then dresses each area with placeables (furniture, lights, containers, decor), ambient sound objects, and waypoints with map notes. Focus is ambience — picks should be thematic to the plot but not plot pivot points. Downstream skills (/adventure-actors, /adventure-quests, /adventure-challenges, /adventure-affordances) will select from the placed environment for their purposes.

Prerequisites

  • adventure.md must exist in the MCP temp directory ($MCP_FOLDER_TEMP, defaults to $TEMP/nwn-mcp or /tmp/nwn-mcp) and contain completed ## Plot and ## Areas sections.
  • A module must be loaded. If none is loaded, call load_module using the module name from adventure.md.

Workflow

Fully autonomous. Make all decisions based on the plot document and spatial data — do NOT ask the user for input.


Pre-Check: Validate adventure.md

Read adventure.md from the MCP temp directory. Verify these sections exist and are non-empty:

  • ## Module
  • ## Plot
  • ## Areas

If any required section is missing or contains no content below its heading: STOP. Output: "ERROR: adventure.md is missing required section [name]. The prerequisite skill has not run or failed. Cannot proceed."


Phase 1: Read the Plot and Areas

Read adventure.md. Extract from the ## Plot section:

  • Locations — name, type (interior/exterior), environment keywords, mood, description
  • Setting — biome, time of day, atmosphere
  • Key NPCs — where they are located (for ambient dressing around their areas)

Extract from the ## Areas section:

  • Resrefs — area identifiers for visualize_area calls
  • Dimensions — width x height in tiles
  • Terrain summary — what zones were placed (forest, water, floor, wall, etc.)
  • Features — any multi-tile groups placed (temples, lodges, bridges, ruins)
  • Doors — positions and tags for area transitions

Build a list of all areas to process. Handle them one at a time.

Read the full file on GitHub · 360 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. 10d ago First seen · 360 lines · 46 tokens per session scan A 009db3be29cd

Subscribe to this mod's changes

adventure-environment is a skill published in the GitHub repository Txpple/nwn-mcp (11 stars, last pushed 5mo ago), licensed MIT. It adds 46 tokens to every session and 4,880 once invoked, about $0.0002 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 2026-08-31.