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.
npx skills add gamedev-skills/awesome-gamedev-agent-skills --skill level-designgit clone --depth 1 https://github.com/gamedev-skills/awesome-gamedev-agent-skillsWrote 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.
[](https://agentmods.dev/skills/gamedev-skills/awesome-gamedev-agent-skills/level-design)<a href="https://agentmods.dev/skills/gamedev-skills/awesome-gamedev-agent-skills/level-design"><img src="https://agentmods.dev/badge/skills/gamedev-skills/awesome-gamedev-agent-skills/level-design/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.
<a href="https://agentmods.dev/skills/gamedev-skills/awesome-gamedev-agent-skills/level-design"><img src="https://agentmods.dev/badge/skills/gamedev-skills/awesome-gamedev-agent-skills/level-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00083 | $0.01829 |
| Opus 5 | $0.00042 | $0.00915 |
| Sonnet 5 | $0.00017 | $0.00366 |
| Haiku 4.5 | $0.00008 | $0.00183 |
Grade A, and why
level-design 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 13d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- level-design — 92% identical, 6 lines differ
How it starts
The opening of the file, as written. The whole thing — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Level design
A level is a sequence of intentional experiences delivered through space.
Good level design is a process: define the metrics movement is built on, block
out geometry with primitives, play it, then dress it — never the reverse. This
skill is the engine-neutral practice; use godot-tilemap/unity-tilemap-2d to
lay out 2D grids and gridmaps for 3D.
When to use
- Use to plan a level's structure: critical path, pacing, gating, encounters, and where the player learns vs is tested.
- Use the blockout → test → iterate → dress workflow to build a level that plays well before any art exists.
- Use to derive level metrics from the character's movement so geometry is reachable and fair.
When not to use: to generate levels algorithmically, use procedural-gen
(authored and procedural design are complementary). For the engine's tile/grid
painting tools, use godot-tilemap / unity-tilemap-2d. For the movement
abilities the metrics come from, that's the engine movement skill + input-systems.
Core workflow
- Derive metrics first. Measure the character: max jump height and distance, run speed, reach, camera range. Every gap, ledge, and corridor is sized in these units. Lock them before building geometry.
- Blockout (whitebox/greybox). Build the whole level from untextured primitives at correct scale. Validate flow, sightlines, and reachability while changes are cheap. No art yet.
- Define the critical path (start → goal) and the golden path you expect most players to take. Layer optional/secret paths off it.
- Pace the experience. Alternate tension and rest in a deliberate curve; don't run combat-combat-combat. Give the player room to breathe and to anticipate.
- Teach, then test. Introduce each mechanic in a safe space, let the player practice, then test it under pressure. Difficulty rises in a sawtooth, not a straight line.
- Gate with intent. Use locks/keys, abilities, and one-way drops to control order and pacing; guide with light, lines, and landmarks rather than walls.
- Playtest and iterate. Watch real players: where do they get lost, stuck, bored, or killed unfairly? Fix the blockout; only dress when it plays well.
What ships with it
1 file 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.
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.
- 13d ago First seen · 139 lines · 83 tokens per session scan A f1656cb00b9a
level-design is a skill published in the GitHub repository gamedev-skills/awesome-gamedev-agent-skills (952 stars, last pushed 2d ago), licensed Apache-2.0. It adds 83 tokens to every session and 1,829 once invoked, about $0.0004 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 2026-08-30.
Other skills, from other repositories
assets-get-data
Get asset data from the asset file in the Unity project — every serializable field and property. Supports token-saving path-scoped reads via paths or viewQuery. Use 'assets-find' to find the asset first.
gameobject-set-parent
Reparent a batch of GameObjects under a new parent in the currently opened Prefab or active Scene. Per-item failures are reported in the returned status string instead of aborting the batch. Use 'gameobject-find' to locate the GameObjects first.
unity-version-split
Split a C# file into Unity 6.5+ and pre-Unity 6.5 variants. Use when a file needs different implementations for different Unity versions due to API changes (e.g., EntityId vs int, GetEntityId vs GetInstanceID).
profiler-save-data
Save a snapshot of profiler-derived stats (status + memory + rendering + script + frame capture) to a JSON file. Built-in Unity APIs only.
assets-shader-list-all
List all shaders available in the project assets and packages, sorted by name. Use this to discover a valid shaderName for 'assets-material-create'.
profiler-stop
Disable Unity's runtime profiler. Idempotent — calling when already disabled returns the current disabled state.