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 wangyendt/wayne-skills --skill geometric-hull-calculatorgit clone --depth 1 https://github.com/wangyendt/wayne-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/wangyendt/wayne-skills/geometric-hull-calculator)<a href="https://agentmods.dev/skills/wangyendt/wayne-skills/geometric-hull-calculator"><img src="https://agentmods.dev/badge/skills/wangyendt/wayne-skills/geometric-hull-calculator/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/wangyendt/wayne-skills/geometric-hull-calculator"><img src="https://agentmods.dev/badge/skills/wangyendt/wayne-skills/geometric-hull-calculator.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 | $0.00078 | $0.00753 |
| Opus 5 | $0.00039 | $0.00377 |
| Sonnet 5 | $0.00016 | $0.00151 |
| Haiku 4.5 | $0.00008 | $0.00075 |
Grade A, and why
pywayne-cv-geometric-hull-calculator 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 — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Pywayne Geometric Hull Calculator
This module computes geometric hulls (convex and concave) for 2D point sets.
Quick Start
from pywayne.cv.geometric_hull_calculator import GeometricHullCalculator
import numpy as np
# Create calculator with random points
points = GeometricHullCalculator.generate_random_points(num_points=50)
calculator = GeometricHullCalculator(points, algorithm='concave-hull')
# Get results
print(f"MBR: {calculator.get_mbr()}")
print(f"Convex Hull: {calculator.get_convex_hull()}")
print(f"Concave Hull: {calculator.get_concave_hull()}")
# Visualize with matplotlib
calculator.visualize_matplotlib()
Initialization
# algorithm options: 'concave-hull' or 'alphashape'
# use_filtered_pts: Enable point filtering based on radius
calculator = GeometricHullCalculator(
points=your_points,
algorithm='alphashape',
use_filtered_pts=True
)
Supported Algorithms
| Algorithm | Description |
|---|---|
concave-hull |
Concave hull using concave_hull library |
alphashape |
Concave hull using alphashape library |
Hull Types
| Type | Method | Description |
|---|---|---|
| Convex Hull | get_convex_hull() |
Outer hull containing all points |
| Concave Hull | get_concave_hull() |
Inner concave boundary |
Properties
| Property | Description |
|---|---|
points |
Input 2D points (N×2 numpy array) |
algorithm |
Algorithm used for concave hull |
use_filtered_pts |
Whether filtered points were used |
box |
Minimum Bounding Rectangle corners |
center |
Center point of input points |
filter_radius |
Radius used for point filtering |
concave_hull_result |
Concave hull points or polygons |
Visualization
OpenCV Visualization
calculator.visualize_opencv()
Displays: All input points, MBR, center, filter circle (if enabled), concave hull (green), convex hull (red).
Matplotlib Visualization
calculator.visualize_matplotlib()
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 · 101 lines · 78 tokens per session scan A e99742fbde9b
pywayne-cv-geometric-hull-calculator is a skill published in the GitHub repository wangyendt/wayne-skills (8 stars, last pushed 2d ago), licensed MIT. It adds 78 tokens to every session and 753 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 2026-08-31.
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