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nibabel-skill SKILL.md skillA

nibabel-skill from cuhk-aim-group/neurodiscovery is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add cuhk-aim-group/neurodiscovery/nibabel-skill@git:20260506.86420c0

Pins git:20260506.86420c0 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: cuhk-aim-group/neurodiscovery
Path: skills/nibabel-skill/SKILL.md
Versions recorded: 3
Latest version: git:20260506.86420c0, committed May 6, 2026
First version recorded: Apr 13, 2026
Size: 7,584 bytes
Repository stars: 93
License: MIT

Use this skill whenever NeuroClaw needs concrete nibabel operations for neuroimaging files: loading and validating NIfTI images, inspecting shapes and affine matrices, saving derived images, converting voxel coordinates to MNI/world coordinates, or reading FreeSurfer geometry and annotation files. Triggers include: 'nibabel', 'inspect NIfTI', 'read affine', 'save nifti', 'voxel to MNI', 'atlas coordinates', 'read FreeSurfer surface', 'read annot', or any request focused on low-level…

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

# Nibabel Skill

## Overview

`nibabel-skill` is the NeuroClaw tool skill for low-level neuroimaging file I/O and geometry handling.

It is the right skill when the task is about reading or writing NIfTI data, checking image dimensions and affine matrices, extracting atlas-space coordinates, or interacting with FreeSurfer surface and annotation files.

This skill is intentionally narrower than `nilearn-tool` and `brain-visualization`:
- `nibabel-skill` focuses on file structures, affines, voxel/world coordinates, and surface geometry I/O
- `nilearn-tool` focuses on signal processing, masking, ROI time series, and statistical image workflows
- `brain-visualization` focuses on final figure generation and mesh export workflows

The content is distilled from nibabel-centric patterns that appear repeatedly in `rs-fMRI-Pipeline-Tutorial/`, especially:
- NIfTI discovery and validation in the multimodal pipeline
- affine-based ROI center conversion in zALFF regional summaries
- FreeSurfer geometry and annotation loading for colored surface export

## Agent Reference Rule
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add cuhk-aim-group/neurodiscovery/nibabel-skill@sha256:38fd841ee6f915bb

The line at the top of this page pins the label git:20260506.86420c0, 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](https://markdownregistry.com/badge/art_7hvw2u6vwet6csl5.svg)](https://markdownregistry.com/a/art_7hvw2u6vwet6csl5)

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

Versions

The registry has recorded 3 versions of this file, between Apr 13, 2026 and May 6, 2026, about one every 12 days.

version	committed	commit	size	audit
git:20260506.86420c0 latest	2026-05-06	86420c0	7,584 B	A	view · diff
git:20260505.e9ddd22	2026-05-05	e9ddd22	7,593 B	A	view · diff
git:20260413.5f89017	2026-04-13	5f89017	7,548 B	A	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 (7584 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

cuhk-aim-group/neurodiscovery · 93 stars · license MIT · pushed 2026-10-23 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_7hvw2u6vwet6csl5
GET https://markdownregistry.com/api/v1/resolve?ref=cuhk-aim-group/neurodiscovery/nibabel-skill
GET https://markdownregistry.com/api/v1/blob/38fd841ee6f915bbe862d1c50fde0bc50f8c48d3dc61ffb8b73e1c629f08ba32

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.