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nwn-mcp: Skill for Claude Code

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

adventure-challenges is a skill for Claude Code from Txpple/nwn-mcp. It costs 61 tokens per session (8,971 once invoked), scanned A, original, MIT.

A challenge-building step for a Neverwinter Nights adventure. It reads the adventure plan and places hostile creatures with different combat roles, along with traps.

In plain words
What is it for?
Use it to add melee, spellcasting, and healing enemies, assign them abilities and equipment, and place traps.
Why use it?
It removes the need to manually design and position enemies and hazards that fit the adventure.

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 →

not rated 16repo 7mo ago A scan 61 tokens original MIT
View source ↗ Txpple/nwn-mcp
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-challenges/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-challenges

README.md
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Your own site
<a href="https://agentmods.dev/skills/txpple/nwn-mcp/adventure-challenges"><img src="https://agentmods.dev/badge/skills/txpple/nwn-mcp/adventure-challenges/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-challenges

Your own site · 80×15
<a href="https://agentmods.dev/skills/txpple/nwn-mcp/adventure-challenges"><img src="https://agentmods.dev/badge/skills/txpple/nwn-mcp/adventure-challenges.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,971 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 $0.00061 $0.08971
Opus 5.5 $0.00024 $0.03588
Sonnet 5.5 $0.00012 $0.01794
Haiku 4.5 $0.00006 $0.00897

Measured 2mo ago against content hash cab3aaab632a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

adventure-challenges 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 2mo 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-challenges/SKILL.md · 689 lines

How it starts

The opening of the file, as written. The whole thing — 689 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Challenges

Sub-skill of /create-adventure. Reads all prior sections of adventure.md, then places hostile creatures with tactical combat roles and traps as a layer on top of existing content. All hostile creatures use faction 1 (Hostile). Creatures are selected by appearance (thematic fit), then independently given stats, classes, feats, spells, and equipment to create tactical diversity. Downstream skills (/adventure-affordances, /adventure-rewards) use challenge data to stock loot and assign XP.

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, ## Areas, ## Environment, ## Actors, and ## Quests 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
  • ## Environment
  • ## Actors
  • ## Quests

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 Adventure Context

Read adventure.md. Extract from all sections:

From ## Plot:

  • Module metadata — target level, tone, duration
  • Antagonists — creature types, motivation, escalation pattern, territory
  • Challenges — combat encounters, puzzles, hazards described in the plot
  • Locations — which areas are safe (town/inn), which are dangerous (dungeon/forest)

From ## Areas:

  • Resrefs — area identifiers for visualize_area calls
  • Dimensions — area size (affects creature count)
  • Transitions — area connectivity (shapes difficulty escalation)
  • Doors — chokepoints and guard positions

Read the full file on GitHub · 689 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. 2mo ago First seen · 689 lines · 61 tokens per session scan A cab3aaab632a

Subscribe to this mod's changes

adventure-challenges is a skill published in the GitHub repository Txpple/nwn-mcp (16 stars, last pushed 7mo ago), licensed MIT. It adds 61 tokens to every session and 8,971 once invoked, about $0.0002 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 2026-08-31.

Game development
Related

adventure-challenges compared with skills from other repositories

adventure-challenges next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
adventure-challengesTxpple/nwn-mcpSkill167mo agoMITA61Claude Code
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motionOpenDCAI/GameFactory-3ASkill1.0k9d agoApache-2.0A0Claude Code, Codex
unity-addressablesBesty0728/Unity-SkillsSkill1.9kyesterdayMITA25Claude Code, Codex
unity-manual-componentBesty0728/Unity-SkillsSkill1.9kyesterdayMITA36Claude Code, Codex