uncertainty-and-units SKILL.md skillA

uncertainty-and-units from k-dense-ai/scientific-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add k-dense-ai/scientific-agent-skills/uncertainty-and-units@v1.3

Pins v1.3 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
k-dense-ai/scientific-agent-skills
Path
skills/uncertainty-and-units/SKILL.md
Versions recorded
4
Latest version
v1.3, committed Oct 1, 2026
First version recorded
Jul 26, 2026
Size
21,731 bytes
Repository stars
56,497
License
MIT

Tracks physical units and propagates measurement uncertainty in scientific calculations using pint and uncertainties. Use for unit conversion and dimensional checking, GUM uncertainty budgets, Type A and Type B evaluation, coverage factors and expanded uncertainty, Monte Carlo propagation, significant-figure and plus-minus reporting, error propagation through curve fits, CODATA constants, auditing Python code for stripped units or broken uncertainty propagation, and order-of-magnitude…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Uncertainty and units

## Scope

Use this skill whenever a calculation carries physical units or a reported number needs
an uncertainty. Concretely:

- converting between units, including conversions that need a physical context
  (wavelength to photon energy, mass to amount of substance, energy to temperature);
- propagating uncertainty through a measurement model, with or without correlated inputs;
- building a GUM uncertainty budget from calibration certificates, specifications, and
  repeatability data;
- choosing a coverage factor and deciding whether `k = 2` is defensible;
- rounding and writing a result so a reader knows what the `±` means;
- extracting parameter uncertainties from a curve fit without discarding correlations;
- reviewing existing analysis code for silent unit and uncertainty defects;
- checking that a dimensionally consistent answer is also physically possible — the
  order of magnitude, the dimensionless group, and the regime it implies.

This skill covers the metrology and the two libraries that implement it. It does not
cover statistical inference, model selection, or study design — see `statistical-analysis`,
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add k-dense-ai/scientific-agent-skills/uncertainty-and-units@sha256:caaafa079a4eaac6

The line at the top of this page pins the label v1.3, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_iq5euqr4w4eysfcv.svg)](https://markdownregistry.com/a/art_iq5euqr4w4eysfcv)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 4 versions of this file, between Jul 26, 2026 and Oct 1, 2026, about one every 22 days.

versioncommittedcommitsizeaudit
v1.3 latest2026-10-01 a92663a 21,731 BA view · diff
v1.22026-09-30 ce9e6e9 20,066 BA view · diff
v1.12026-09-02 1e5eeff 19,864 BA view · diff
v1.02026-07-26 cca1e05 18,906 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (21731 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

k-dense-ai/scientific-agent-skills · 56,497 stars · license MIT · pushed 2026-11-02 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_iq5euqr4w4eysfcv
GET https://markdownregistry.com/api/v1/resolve?ref=k-dense-ai/scientific-agent-skills/uncertainty-and-units
GET https://markdownregistry.com/api/v1/blob/caaafa079a4eaac6012717bcf705dec0417b5434f5dbd1af934a3a36ad375722

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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Every file in k-dense-ai/scientific-agent-skills

Other files named uncertainty-and-units

uncertainty-and-units SKILL.md skill
ahmadhammoud56/moaa · skills/uncertainty-and-units/SKILL.md · Tracks physical units and propagates measurement uncertainty in scientific calculations using pint and uncertainties…
v1.3 · audit A · 5 stars

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