fmriprep-tool

fmriprep-tool is a skill for Claude Code, Codex from CUHK-AIM-Group/NeuroClaw. It costs 96 tokens per session (2,072 once invoked), scanned A, original, MIT.

A guided tool for fMRIPrep, a standard program that prepares functional and anatomical MRI scans for research analysis. It works with BIDS, a common way of organizing imaging data.

In plain words
What is it for?
Use it to plan and run fMRI preprocessing, including motion correction, distortion correction, alignment, brain segmentation, and conversion to standard space.
Why use it?
It helps turn MRI data into consistently prepared outputs while checking setup, planning the run, and highlighting quality-control reports.

Skill for Claude CodeCodex

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

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /home/cwang/clawd/license.txt.

Good fit Use it to plan and run fMRI preprocessing, including motion correction, distortion correction, alignment, brain segmentation, and conversion to standard space.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.

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 fmriprep-tool

README.md
[![agentmods](https://agentmods.dev/badge/skills/cuhk-aim-group/neuroclaw/fmriprep-tool/github.svg)](https://agentmods.dev/skills/cuhk-aim-group/neuroclaw/fmriprep-tool)
Your own site
<a href="https://agentmods.dev/skills/cuhk-aim-group/neuroclaw/fmriprep-tool"><img src="https://agentmods.dev/badge/skills/cuhk-aim-group/neuroclaw/fmriprep-tool/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 fmriprep-tool

Your own site · 80×15
<a href="https://agentmods.dev/skills/cuhk-aim-group/neuroclaw/fmriprep-tool"><img src="https://agentmods.dev/badge/skills/cuhk-aim-group/neuroclaw/fmriprep-tool.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 96 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,072 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00096 $0.02072
Opus 5 $0.00048 $0.01036
Sonnet 5 $0.00019 $0.00414
Haiku 4.5 $0.00010 $0.00207

Measured 11d ago against content hash 8a463617afe6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

fmriprep-tool scanned grade A with 1 finding 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

subprocess.run(cmd, check=True)
skills/fmriprep-tool/SKILL.md · 228 lines

How it starts

The opening of the file, as written. The whole thing — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.

fMRIPrep Tool

Overview

fMRIPrep is a robust, standardized preprocessing pipeline for BIDS-compliant functional and anatomical MRI data. It performs best-practice steps including anatomical segmentation, functional motion correction, susceptibility distortion correction, coregistration, normalization to standard space, and generates comprehensive QC reports.

This skill serves as the NeuroClaw interface-layer wrapper for fMRIPrep and strictly follows the hierarchical design:

  1. Check whether fMRIPrep and its dependencies (Docker or Singularity) are installed.
  2. If missing → invoke dependency-planner to generate a safe installation plan.
  3. Detect input BIDS dataset structure and confirm output directory.
  4. Generate a clear, numbered execution plan with exact command, flags, estimated runtime, and risks.
  5. Present the plan and wait for explicit user confirmation (“YES” / “execute” / “proceed”).
  6. On confirmation → delegate the entire pipeline execution to claw-shell.
  7. After completion, summarize outputs, highlight QC reports, and suggest next steps (e.g., feeding results into analysis or paper-writing).

Research use only.

Quick Reference

Task Recommended Command / Approach Typical Runtime (per subject)
Full fMRIPrep pipeline fmriprep bids_dir output_dir participant --fs-license-file license.txt 2–8 hours
Anatomical only --anat-only 30–90 min
Functional only (after anat) --bold-only 1–4 hours
Use FreeSurfer recon-all --fs-subjects-dir /path/to/fs +2–6 hours
Skip susceptibility distortion --ignore fieldmaps Reduces time
Low memory mode --mem-mb 8000 --nthreads 4 For limited resources
Generate detailed QC reports Default behavior (outputs in sub-*/figures/ and reports/) Included

Read the full file on GitHub · 228 lines

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. 11d ago First seen · 228 lines · 96 tokens per session scan A 8a463617afe6

Subscribe to this mod's changes

fmriprep-tool is a skill published in the GitHub repository CUHK-AIM-Group/NeuroClaw (84 stars, last pushed 4d ago), licensed MIT. It adds 96 tokens to every session and 2,072 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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