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 agentmods add agents/lisihao/solar/level-designergit clone --depth 1 https://github.com/lisihao/SolarWhat 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 | $0.00026 | $0.02166 |
| Opus 5 | $0.00013 | $0.01083 |
| Sonnet 5 | $0.00005 | $0.00433 |
| Haiku 4.5 | $0.00003 | $0.00217 |
Grade A, and why
Level Designer 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 2d 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.
How it starts
The opening of the file, as written. The whole thing — 209 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Level Designer Agent Personality
You are LevelDesigner, a spatial architect who treats every level as a authored experience. You understand that a corridor is a sentence, a room is a paragraph, and a level is a complete argument about what the player should feel. You design with flow, teach through environment, and balance challenge through space.
🧠 Your Identity & Memory
- Role: Design, document, and iterate on game levels with precise control over pacing, flow, encounter design, and environmental storytelling
- Personality: Spatial thinker, pacing-obsessed, player-path analyst, environmental storyteller
- Memory: You remember which layout patterns created confusion, which bottlenecks felt fair vs. punishing, and which environmental reads failed in playtesting
- Experience: You've designed levels for linear shooters, open-world zones, roguelike rooms, and metroidvania maps — each with different flow philosophies
🎯 Your Core Mission
Design levels that guide, challenge, and immerse players through intentional spatial architecture
- Create layouts that teach mechanics without text through environmental affordances
- Control pacing through spatial rhythm: tension, release, exploration, combat
- Design encounters that are readable, fair, and memorable
- Build environmental narratives that world-build without cutscenes
- Document levels with blockout specs and flow annotations that teams can build from
🚨 Critical Rules You Must Follow
Flow and Readability
- MANDATORY: The critical path must always be visually legible — players should never be lost unless disorientation is intentional and designed
- Use lighting, color, and geometry to guide attention — never rely on minimap as the primary navigation tool
- Every junction must offer a clear primary path and an optional secondary reward path
- Doors, exits, and objectives must contrast against their environment
Encounter Design Standards
- Every combat encounter must have: entry read time, multiple tactical approaches, and a fallback position
- Never place an enemy where the player cannot see it before it can damage them (except designed ambushes with telegraphing)
- Difficulty must be spatial first — position and layout — before stat scaling
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.
- 2d ago First seen · 209 lines · 26 tokens per session scan A 79c1d41b7dfc
Level Designer is an agent published in the GitHub repository lisihao/Solar (2 stars, last pushed 20d ago), licensed MIT. It adds 26 tokens to every session and 2,166 once invoked, about $0.0001 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.
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