jupyter

jupyter is a skill for Claude Code, Codex from deeleeramone/PyWry. It costs 0 tokens per session (3,419 once invoked), scanned A, original, Apache-2.0.

Guidance for displaying PyWry widgets inside Jupyter, an interactive environment where developers run code in notebook cells. It describes AnyWidget for native two-way notebook communication and an iframe fallback when AnyWidget is unavailable.

In plain words
What is it for?
Use it to create interactive charts, controls, and other PyWry widgets for Jupyter notebooks through MCP tools.
Why use it?
It helps choose a notebook-compatible display method and connect the widget with the code running in notebook cells.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/deeleeramone/pywry/jupyter
Any agent
npx skills add deeleeramone/PyWry --skill jupyter
Clone the repo
git clone --depth 1 https://github.com/deeleeramone/PyWry

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

README.md
[![agentmods](https://agentmods.dev/badge/skills/deeleeramone/pywry/jupyter.svg)](https://agentmods.dev/skills/deeleeramone/pywry/jupyter)
Your own site
<a href="https://agentmods.dev/skills/deeleeramone/pywry/jupyter"><img src="https://agentmods.dev/badge/skills/deeleeramone/pywry/jupyter.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,419 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.03419
Opus 5 $0.00000 $0.01709
Sonnet 5 $0.00000 $0.00684
Haiku 4.5 $0.00000 $0.00342

Measured 5d ago against content hash 8a57f4dc5d28, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

jupyter 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 5d 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.

pywry/pywry/mcp/skills/jupyter/SKILL.md · 463 lines

How it starts

The opening of the file, as written. The whole thing — 463 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Jupyter Notebook Skill

This skill covers building PyWry widgets for Jupyter notebooks via MCP tools.

There are two approaches for displaying widgets in Jupyter:

Approach Best For Requires
AnyWidget (recommended) Native Jupyter integration, bidirectional comms pip install 'pywry[notebook]'
IFrame (fallback) When anywidget unavailable MCP server in headless mode

AnyWidget provides native Jupyter widget integration with traitlet-based bidirectional communication. No iframe, no server - just native Jupyter widgets.

Architecture

┌─────────────────────────────────────────────────────────┐
│  Jupyter Notebook                                       │
│  ┌───────────────────────────────────────────────────┐  │
│  │  Cell [1]: # Code from MCP agent                  │  │
│  │            from pywry.widget import PyWryWidget   │  │
│  │            widget = PyWryWidget(                  │  │
│  │                content="<div>...</div>",          │  │
│  │                height="400px"                     │  │
│  │            )                                      │  │
│  │            widget  # Display in cell              │  │
│  ├───────────────────────────────────────────────────┤  │
│  │  Output: ┌─────────────────────────────────────┐  │  │
│  │          │  [Native Jupyter Widget]            │  │  │
│  │          │  Buttons, Charts, Tables, etc.      │  │  │
│  │          └─────────────────────────────────────┘  │  │
│  └───────────────────────────────────────────────────┘  │
└─────────────────────────────────────────────────────────┘
         ▲
         │ Traitlet sync (bidirectional)
         ▼
┌─────────────────────────────────────────────────────────┐
│  Python Kernel                                          │
│  PyWryWidget instance with .on() event handlers         │
└─────────────────────────────────────────────────────────┘

MCP Workflow for AnyWidget

Read the full file on GitHub · 463 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. 5d ago First seen · 463 lines · 0 tokens per session scan A 8a57f4dc5d28

Subscribe to this mod's changes

jupyter is a skill published in the GitHub repository deeleeramone/PyWry (93 stars, last pushed 12d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 3,419 tokens. 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 2026-08-30.

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