What is ue-ai-navigation?

A guide for building game characters that can sense their surroundings, choose actions, and move through an Unreal Engine world. It covers systems such as behavior trees, which organize decisions, and NavMesh, a map used for walkable paths.

Use it when implementing AI controllers, behavior trees, blackboards, perception, pathfinding, navigation, State Trees, Smart Objects, or AI abilities in Unreal Engine.

It helps structure game AI and navigation around the project's enabled systems and multiplayer setup. It also makes key design choices explicit, such as how complex the AI should be and whether it needs dynamic obstacles.

ue-ai-navigation — Skill for Claude Code and Codex by quodsoler

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 quodsoler/unreal-engine-skills --skill ue-ai-navigation

Clone the repo

git clone --depth 1 https://github.com/quodsoler/unreal-engine-skills

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/quodsoler/unreal-engine-skills/ue-ai-navigation/github.svg)](https://agentmods.dev/skills/quodsoler/unreal-engine-skills/ue-ai-navigation)

Your own site

<a href="https://agentmods.dev/skills/quodsoler/unreal-engine-skills/ue-ai-navigation"><img src="https://agentmods.dev/badge/skills/quodsoler/unreal-engine-skills/ue-ai-navigation/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/quodsoler/unreal-engine-skills/ue-ai-navigation"><img src="https://agentmods.dev/badge/skills/quodsoler/unreal-engine-skills/ue-ai-navigation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 195 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 8,989 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

Socket pass 29 Sept 2026
Snyk pass 29 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.

Model	Per session	Once invoked
Fable 5.1	$0.00195	$0.08989
Opus 5.5	$0.00078	$0.03596
Sonnet 5.5	$0.00039	$0.01798
Haiku 4.5	$0.00019	$0.00899

Measured 1mo ago against content hash 6fbd18a43272, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ue-ai-navigation 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.

skills/ue-ai-navigation/SKILL.md · 466 lines

How it starts

The opening of the file, as written. The whole thing — 466 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Target engine: UE 5.8. APIs below are verified against the 5.8 headers; older forms are listed under "Deprecated — do not use".

Classic UE AI runs on a server-only AAIController that owns a brain component (UBehaviorTreeComponent), a UBlackboardComponent, a UAIPerceptionComponent and a UPathFollowingComponent. Behavior trees, perception and EQS live in the AIModule; navmesh generation and queries live in NavigationSystem; BT tasks that wrap gameplay tasks need GameplayTasks. Smart Objects (SmartObjectsModule, plugin SmartObjects), ZoneGraph (ZoneGraph, Experimental in 5.8), MassAI (Experimental in 5.8) and NavCorridor (Experimental in 5.8) are opt-in plugins. Add what you use to PublicDependencyModuleNames in your .Build.cs, e.g. "AIModule", "NavigationSystem", "GameplayTasks".

Context

Read .agents/ue-project-context.md if it exists (module names, conventions, enabled plugins, GAS/networking setup). Do not stop if it is missing.

Identify the area from the request and the codebase. Ask only when two plausible readings would produce different code.

Request is about…	Go to
Possessing a pawn, running a tree, move requests, focus	AI Controller
Reading/writing AI knowledge, key selectors, observers	Blackboard
Custom tasks, decorators, services, node memory	Behavior Tree Nodes
Sight/hearing/damage senses, stimuli sources	AI Perception
Path queries, projection, random points, invokers	Navigation and Pathfinding
Area costs, query filters, jump/off-mesh links	Nav Areas, Filters and Off-Mesh Links
Cover/flank/patrol point selection, custom contexts	EQS Environment Query System
State Tree instead of a behavior tree	State Tree for AI
Interactable world objects, slot claiming	Smart Objects
Lane-based crowds, large agent counts	ZoneGraph, MassAI and NavCorridor

Read the full file on GitHub · 466 lines

Files

What ships with it

2 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.

1mo ago Changed · -34 lines · +116 tokens per session 6fbd18a43272
2mo ago First seen · 500 lines · 79 tokens per session scan A 04c972f2e002

Subscribe to this mod's changes

ue-ai-navigation is a skill published in the GitHub repository quodsoler/unreal-engine-skills (440 stars, last pushed 1mo ago), licensed MIT. It adds 195 tokens to every session and 8,989 once invoked, about $0.0008 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

ue-ai-navigation next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
ue-ai-navigationquodsoler/unreal-engine-skills	Skill	440	1mo ago	MIT	A	195	Claude Code, Codex
playtest-reportDonchitos/Claude-Code-Game-Studios	Skill	37k	20d ago	MIT	A	20	Claude Code
godot-signals-groupsgamedev-skills/awesome-gamedev-agent-skills	Skill	7.4k	11d ago	Apache-2.0	A	95	Claude Code
texture-workflowarjun988/blender-skills	Skill	2.0k	2d ago	MIT	A	41	Claude Code
scenario-unreal-gameplayscenario-labs/skills	Skill	3.5k	yesterday	MIT	A	121	Claude Code
motionOpenDCAI/GameFactory-3A	Skill	1.0k	10d ago	Apache-2.0	A	0	Claude Code, Codex
unity-addressablesBesty0728/Unity-Skills	Skill	1.9k	today	MIT	A	25	Claude Code, Codex

ue-ai-navigation