Borrowing it
Nothing to install: this file belongs to tweakoz/orkid. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/tweakoz/orkid/develop/.claude/skills/orkcore-math/SKILL.mdgit clone --depth 1 https://github.com/tweakoz/orkidWrote 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/tweakoz/orkid/orkcore-math)<a href="https://agentmods.dev/skills/tweakoz/orkid/orkcore-math"><img src="https://agentmods.dev/badge/skills/tweakoz/orkid/orkcore-math/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/tweakoz/orkid/orkcore-math"><img src="https://agentmods.dev/badge/skills/tweakoz/orkid/orkcore-math.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- 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 | $0.00072 | $0.01554 |
| Opus 5.5 | $0.00029 | $0.00622 |
| Sonnet 5.5 | $0.00014 | $0.00311 |
| Haiku 4.5 | $0.00007 | $0.00155 |
Grade A, and why
orkcore-math 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.
How it starts
The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Orkid Math Types Reference
When answering questions about math types in orkid, consult these files. All under ork.core/.
Key Files
| Component | Header |
|---|---|
| fvec2/dvec2 | inc/ork/math/cvector2.h |
| fvec3/dvec3 | inc/ork/math/cvector3.h |
| fvec4/dvec4 | inc/ork/math/cvector4.h |
| fmtx3/dmtx3 | inc/ork/math/cmatrix3.h |
| fmtx4/dmtx4 | inc/ork/math/cmatrix4.h |
| fquat/dquat | inc/ork/math/quaternion.h |
| TransformNode | inc/ork/math/TransformNode.h |
| DecompTransform | inc/ork/math/TransformNode.h (same file) |
| MultiCurve1D | inc/ork/math/multicurve.h |
| Color Math | inc/ork/math/colormath.inl |
| Misc Utils | inc/ork/math/misc_math.h |
| Python Bindings | inc/ork/python/common_bindings/pyext_math_la.inl |
Quick Constructor Reference
# Vectors
fvec2(x, y)
fvec3(x, y, z) # or fvec3(scalar) for all same
fvec4(x, y, z, w) # or fvec4(fvec3, w=1.0)
# Matrices
fmtx3() # Identity
fmtx4() # Identity
fmtx4(fquat) # From quaternion
# Quaternions
fquat() # Identity (0,0,0,1)
fquat(x, y, z, w)
fquat(axis_fvec3, angle_radians)
fquat(fmtx4) # From matrix
Vector Methods (fvec3 example)
v = fvec3(1, 2, 3)
v.x, v.y, v.z # Component access
v.length # Magnitude (read-only property)
v.normalized # Normalized copy (read-only property)
v.normalize() # In-place normalize
v.dot(other) # Dot product
v.cross(other) # Cross product
v.angle(other) # Angle in radians
v.lerp(a, b, t) # Linear interpolation
v.clamped(min, max) # Clamp all components
v.saturated() # Clamp to [0,1]
v.reflect(normal) # Reflect around normal
v.transform(fmtx4) # Transform by matrix → fvec4
v.xy # Swizzle to fvec2
Color methods on fvec3:
v.setHSV(h, s, v) # Set RGB from HSV
v.convertRgbToHsv() # RGB → HSV
fvec3.Black(), fvec3.Red(), fvec3.Green(), fvec3.Blue(), fvec3.White() # Constants
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.
- 2mo ago First seen · 164 lines · 72 tokens per session scan A ea06efc07e01
orkcore-math is a skill published in the GitHub repository tweakoz/orkid (35 stars, last pushed 2mo ago), licensed MIT. It adds 72 tokens to every session and 1,554 once invoked, about $0.0003 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 2026-09-01.
orkcore-math compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| orkcore-mathtweakoz/orkid | Skill | 35 | 2mo ago | MIT | A | 72 | Claude Code |
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| dart-model-upgradedartsim/dart | Skill | 1.2k | yesterday | BSD-2-Clause | A | 42 | Claude Code |
| html-to-uguiAlex-Rachel/TEngine | Skill | 2.4k | 16d ago | MIT | A | 75 | Codex |
| luban-devAlex-Rachel/TEngine | Skill | 2.4k | 16d ago | MIT | A | 62 | Codex |