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 linegel/threejs-complete-set-of-skill --skill threejs-procedural-planetsgit clone --depth 1 https://github.com/linegel/threejs-complete-set-of-skillWrote 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/linegel/threejs-complete-set-of-skill/threejs-procedural-planets)<a href="https://agentmods.dev/skills/linegel/threejs-complete-set-of-skill/threejs-procedural-planets"><img src="https://agentmods.dev/badge/skills/linegel/threejs-complete-set-of-skill/threejs-procedural-planets/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/linegel/threejs-complete-set-of-skill/threejs-procedural-planets"><img src="https://agentmods.dev/badge/skills/linegel/threejs-complete-set-of-skill/threejs-procedural-planets.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00068 | $0.02010 |
| Opus 5 | $0.00034 | $0.01005 |
| Sonnet 5 | $0.00014 | $0.00402 |
| Haiku 4.5 | $0.00007 | $0.00201 |
Grade A, and why
threejs-procedural-planets 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 11d 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 — 163 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Procedural Planets
Choose the body-scale representation first. One set of planet-space causes must drive geometry, normals, material identity, queries, diagnostics, water/coast handoffs, and atmosphere inputs.
Process
-
Gate body scale. Test whether curvature, horizon, global geodesy, orbit-to-ground transition, or atmosphere coupling is observable. A bounded local site belongs to procedural fields and geometry when tangent-plane sagitta, normal rotation, geodesic, horizon, and projected errors all pass. Read body-model-mapping-and-lod.md when deriving the body-scale gate.
Complete when: the accepted camera and data domain either proves a local approximation or names at least one body-scale observable that requires this skill.
-
Freeze the body model and units. Declare center, sphere radius or ellipsoid axes in meters,
metersPerWorldUnit, height and sea-level datum, body/world transform, origin policy, surface-coordinate meaning, and atmosphere bottom/top geometry. When a sphere approximates an ellipsoid, read body-model-mapping-and-lod.md and apply its position, normal, area, geodesic, horizon, atmosphere-altitude, and optical-depth error gate. Give each changing field one owner and one version.Complete when: every length and vector has units and a frame, surface altitude has one definition, render-origin changes leave physical field identity unchanged, and the spherical branch either passes every declared approximation gate or is rejected in favor of the ellipsoid.
-
Select mapping and spatial representation. Choose normalized, spherified, or verified equal-area cube mapping from distortion and inverse requirements. Choose a cube-face quadtree for arbitrary globe views, a tangent clipmap for sustained local views, or a hybrid with an explicit near/far handoff. A gas/cloud-deck body uses continuous wrapped band fields rather than solid-terrain displacement. Read body-model-mapping-and-lod.md for a solid-body mapping, ellipsoid convention, quadtree, clipmap, or hybrid. Read gas-cloud-deck.md for a gas/cloud-deck body.
What ships with it
7 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.
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.
- 11d ago First seen · 163 lines · 68 tokens per session scan A 2b26798489c9
threejs-procedural-planets is a skill published in the GitHub repository linegel/threejs-complete-set-of-skill (6 stars, last pushed 1mo ago), licensed ISC. It adds 68 tokens to every session and 2,010 once invoked, about $0.0003 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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