mne-connectivity

mne-connectivity is a skill for Claude Code, Codex from Exekiel179/MNE-MCP. It costs 195 tokens per session (1,822 once invoked), scanned A, original, MIT.

An EEG, MEG, or intracranial-EEG analysis workflow for measuring functional connectivity, meaning how activity in different brain areas is related over time.

In plain words
What is it for?
Use it to calculate measures such as coherence, phase locking, cross-frequency coupling, or directed influence in sensor or source space, then review the assumptions behind the results.
Why use it?
It makes hidden design risks explicit before analysis, such as signals appearing connected because they spread through tissue or share a reference.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Use it to calculate measures such as coherence, phase locking, cross-frequency coupling, or directed influence in sensor or source space, then review the assumptions behind the results.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/exekiel179/mne-mcp/mne-connectivity
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 Exekiel179/MNE-MCP --skill mne-connectivity
Clone the repo
git clone --depth 1 https://github.com/Exekiel179/MNE-MCP

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 mne-connectivity

README.md
[![agentmods](https://agentmods.dev/badge/skills/exekiel179/mne-mcp/mne-connectivity/github.svg)](https://agentmods.dev/skills/exekiel179/mne-mcp/mne-connectivity)
Your own site
<a href="https://agentmods.dev/skills/exekiel179/mne-mcp/mne-connectivity"><img src="https://agentmods.dev/badge/skills/exekiel179/mne-mcp/mne-connectivity/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 mne-connectivity

Your own site · 80×15
<a href="https://agentmods.dev/skills/exekiel179/mne-mcp/mne-connectivity"><img src="https://agentmods.dev/badge/skills/exekiel179/mne-mcp/mne-connectivity.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 195 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,822 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 $0.00195 $0.01822
Opus 5 $0.00097 $0.00911
Sonnet 5 $0.00039 $0.00364
Haiku 4.5 $0.00019 $0.00182

Measured 11d ago against content hash a31e133cb64d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

mne-connectivity 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.

skills/mne-connectivity/SKILL.md · 128 lines

How it starts

The opening of the file, as written. The whole thing — 128 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MNE Connectivity (grill → analyze → critic)

Functional/effective connectivity of neurophysiology data via the MNE MCP server. This skill is skeptical by design: most connectivity mistakes (volume conduction inflating zero-lag coherence, trial-count/SNR bias, common-reference artifact) run without any error and produce a beautiful heatmap — so the discipline is to grill before computing and critique before believing.

Companion skills: mne-mcp-guard for technical execution safety; mne-methodology-critic for Phase 3. Loaded objects persist in one MNE session. Connectivity needs the [full] extra (mne-connectivity; PAC via pactools/tensorpac).


PHASE 1 — GRILL (before computing anything)

Do not compute connectivity until these are answered. If the user can't answer one, propose a sensible default and explicitly flag the open risk — never silently choose.

Design & claim

  • What is the hypothesis, and what is the comparison? (group × group, condition × condition, pre × post) Is the claim undirected (coupling) or directed/effective (who drives whom)?
  • Within- or between-subject? Paired or independent? n per cell?
  • Confirmatory (seed/edge/band pre-specified) or exploratory (all-to-all, corrected)?

The question that decides validity

  • Which measure, and WHY? ⚠️ Volume conduction / field spread makes a single source appear at many sensors with zero phase lag, which inflates coherence and PLV — they cannot tell true coupling from one spread-out source. For sensor-space EEG/MEG, prefer measures that discard the zero-lag component: imaginary coherence, wPLI, or PLI. (Using coh/PLV to claim genuine sensor connectivity without this caveat is the single most common fatal error here.)

Data & parameters

  • Sensor or source space? Anatomical claims ("frontoparietal coupling") need source space; sensor-space edges are between electrodes, not brain regions.
  • Reference? A common reference (and the average reference) injects a shared signal that inflates apparent connectivity; consider source space, current-source-density / Laplacian, or a reference-robust measure.
  • Frequency band(s) and width; epoching length (⇒ low-frequency resolution), rejection threshold.
  • For PAC: which phase band drives which amplitude band, and over what window?

Read the full file on GitHub · 128 lines

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. 11d ago First seen · 128 lines · 195 tokens per session scan A a31e133cb64d

Subscribe to this mod's changes

mne-connectivity is a skill published in the GitHub repository Exekiel179/MNE-MCP (7 stars, last pushed 2mo ago), licensed MIT. It adds 195 tokens to every session and 1,822 once invoked, about $0.0010 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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