jupyter-live-kernel

jupyter-live-kernel is a skill for Claude Code, Codex from GGbond-bo/MemOmics-Agent. It costs 19 tokens per session (1,377 once invoked), scanned A, a copy of jupyter-notebook, MIT.

A live Python workspace based on Jupyter, where code runs in an interactive session and variables remain available between commands.

In plain words
What is it for?
Trying Python code step by step, inspecting data tables, exploring APIs, and iterating on data-science or machine-learning work.
Why use it?
It avoids restarting experiments from scratch when exploring data, APIs, or evolving Python code.

Skill for Claude CodeCodex

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

Good fit Trying Python code step by step, inspecting data tables, exploring APIs, and iterating on data-science or machine-learning work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ggbond-bo/memomics-agent/jupyter-live-kernel
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 GGbond-bo/MemOmics-Agent --skill jupyter-live-kernel
Clone the repo
git clone --depth 1 https://github.com/GGbond-bo/MemOmics-Agent

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 jupyter-live-kernel

README.md
[![agentmods](https://agentmods.dev/badge/skills/ggbond-bo/memomics-agent/jupyter-live-kernel/github.svg)](https://agentmods.dev/skills/ggbond-bo/memomics-agent/jupyter-live-kernel)
Your own site
<a href="https://agentmods.dev/skills/ggbond-bo/memomics-agent/jupyter-live-kernel"><img src="https://agentmods.dev/badge/skills/ggbond-bo/memomics-agent/jupyter-live-kernel/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 jupyter-live-kernel

Your own site · 80×15
<a href="https://agentmods.dev/skills/ggbond-bo/memomics-agent/jupyter-live-kernel"><img src="https://agentmods.dev/badge/skills/ggbond-bo/memomics-agent/jupyter-live-kernel.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,377 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 86% copy Near-identical to another mod 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 $0.00019 $0.01377
Opus 5 $0.00010 $0.00688
Sonnet 5 $0.00004 $0.00275
Haiku 4.5 $0.00002 $0.00138

Measured 7d ago against content hash d93c4b4f50e6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

jupyter-live-kernel 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 7d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -s -X POST http://127.0.0.1:8888/api/sessions \
Origin

This is a copy

86% identical to jupyter-notebook — 17 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

hermes-agent/skills/data-science/jupyter-live-kernel/SKILL.md · 168 lines

How it starts

The opening of the file, as written. The whole thing — 168 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Jupyter Live Kernel (hamelnb)

Gives you a stateful Python REPL via a live Jupyter kernel. Variables persist across executions. Use this instead of execute_code when you need to build up state incrementally, explore APIs, inspect DataFrames, or iterate on complex code.

When to Use This vs Other Tools

Tool Use When
This skill Iterative exploration, state across steps, data science, ML, "let me try this and check"
execute_code One-shot scripts needing hermes tool access (web_search, file ops). Stateless.
terminal Shell commands, builds, installs, git, process management

Rule of thumb: If you'd want a Jupyter notebook for the task, use this skill.

Prerequisites

  1. uv must be installed (check: which uv)
  2. JupyterLab must be installed: uv tool install jupyterlab
  3. A Jupyter server must be running (see Setup below)

Setup

The hamelnb script location:

SCRIPT="$HOME/.agent-skills/hamelnb/skills/jupyter-live-kernel/scripts/jupyter_live_kernel.py"

If not cloned yet:

git clone https://github.com/hamelsmu/hamelnb.git ~/.agent-skills/hamelnb

Starting JupyterLab

Check if a server is already running:

uv run "$SCRIPT" servers

If no servers found, start one:

jupyter-lab --no-browser --port=8888 --notebook-dir=$HOME/notebooks \
  --IdentityProvider.token='' --ServerApp.password='' > /tmp/jupyter.log 2>&1 &
sleep 3

Note: Token/password disabled for local agent access. The server runs headless.

Creating a Notebook for REPL Use

If you just need a REPL (no existing notebook), create a minimal notebook file:

mkdir -p ~/notebooks

Write a minimal .ipynb JSON file with one empty code cell, then start a kernel session via the Jupyter REST API:

curl -s -X POST http://127.0.0.1:8888/api/sessions \
  -H "Content-Type: application/json" \
  -d '{"path":"scratch.ipynb","type":"notebook","name":"scratch.ipynb","kernel":{"name":"python3"}}'

Core Workflow

Read the full file on GitHub · 168 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. 7d ago First seen · 168 lines · 19 tokens per session scan A d93c4b4f50e6

Subscribe to this mod's changes

jupyter-live-kernel is a skill published in the GitHub repository GGbond-bo/MemOmics-Agent (19 stars, last pushed 8d ago), licensed MIT. It adds 19 tokens to every session and 1,377 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 86% identical to jupyter-notebook, differing in 17 lines, and is treated as a copy.

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