evo-mass-report-output

evo-mass-report-output is a skill for Claude Code, Codex from OpenLAIR/OpenSkill. It costs 38 tokens per session (399 once invoked), scanned A, original, Apache-2.0.

A pipeline that turns a binary STL file into a JSON mass report. It parses triangles, selects the largest connected component, converts its volume, applies material density, and records the result.

In plain words
What is it for?
Use it for an end-to-end mass calculation from a binary STL scan when the required density table and output path are available.
Why use it?
It removes the manual coordination between 3D-file parsing, geometry calculations, unit conversion, and output formatting.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for an end-to-end mass calculation from a binary STL scan when the required density table and output path are available.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/openlair/openskill/evo-mass-report-output
Install

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.

Any agent
npx skills add OpenLAIR/OpenSkill --skill evo-mass-report-output
Clone the repo
git clone --depth 1 https://github.com/OpenLAIR/OpenSkill

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for evo-mass-report-output

README.md
[![agentmods](https://agentmods.dev/badge/skills/openlair/openskill/evo-mass-report-output/github.svg)](https://agentmods.dev/skills/openlair/openskill/evo-mass-report-output)
Your own site
<a href="https://agentmods.dev/skills/openlair/openskill/evo-mass-report-output"><img src="https://agentmods.dev/badge/skills/openlair/openskill/evo-mass-report-output/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.

agentmods 80×15 button for evo-mass-report-output

Your own site · 80×15
<a href="https://agentmods.dev/skills/openlair/openskill/evo-mass-report-output"><img src="https://agentmods.dev/badge/skills/openlair/openskill/evo-mass-report-output.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 399 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00038 $0.00399
Opus 5 $0.00019 $0.00199
Sonnet 5 $0.00008 $0.00080
Haiku 4.5 $0.00004 $0.00040

Measured today against content hash 513c5efa11a0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

evo-mass-report-output 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 today.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/utils.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

tasks-evolved/3d-scan-calc/environment/skills/evo-mass-report-output/SKILL.md · 44 lines

What it actually says

evo-mass-report-output

End-to-end pipeline orchestrator for mass calculation from binary STL files.

Pipeline

  1. Parse binary STL -> triangles with material IDs
  2. Find largest connected component (vertex-based adjacency, 4-decimal quantization)
  3. Extract Material ID from first triangle of largest component
  4. Look up density from material density table
  5. Compute volume (mm³) using signed tetrahedron method
  6. Convert mm³ to cm³ (divide by 1000)
  7. Mass = volume_cm³ × density_g/cm³
  8. Round to 2 decimal places
  9. Write JSON: {"main_part_mass": X.XX, "material_id": N}

Key Functions

  • run_mass_calculation_pipeline(stl_path, density_table_path, output_path) - Full pipeline
  • write_mass_report_json(filepath, result) - Write JSON output

Usage

import sys
sys.path.insert(0, '/app/environment/skills/evo-stl-binary-parser/scripts')
import utils as stl_parser
sys.path.insert(0, '/app/environment/skills/evo-mesh-geometry-analysis/scripts')
import utils as mesh_analysis
import importlib
importlib.reload(mesh_analysis)

triangles = stl_parser.parse_binary_stl('/root/scan_data.stl')
largest = mesh_analysis.get_largest_connected_component(triangles)
material_id = largest[0][3]
density = stl_parser.lookup_density(material_id)
vol_mm3 = mesh_analysis.compute_mesh_volume(largest)
vol_cm3 = mesh_analysis.convert_volume_mm3_to_cm3(vol_mm3)
mass = round(mesh_analysis.calculate_mass(vol_cm3, density), 2)
Files

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.

Changes

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.

  1. today First seen · 44 lines · 38 tokens per session scan A 513c5efa11a0

Subscribe to this mod's changes

evo-mass-report-output is a skill published in the GitHub repository OpenLAIR/OpenSkill (88 stars, last pushed yesterday), licensed Apache-2.0. It adds 38 tokens to every session and 399 once invoked, about $0.0002 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 2026-09-11.

Related

Other skills, from other repositories