apply-style

apply-style is a skill for Claude Code, Codex from stellarshenson/claude-code-plugins. It costs 21 tokens per session (279 once invoked), scanned A, original, MIT.

A formatting skill for improving the displayed output of a notebook or script with Rich styling rules.

In plain words
What is it for?
Use it to find and fix output-formatting issues, combine related messages, add Rich printing where needed, and correct imports and colour names.
Why use it?
It replaces inconsistent prints, colours, and formatting with a common visual system that is easier to read.

Skill for Claude CodeCodex

Part of the datascience plugin — 20 skills, 15 commands shipped together

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/stellarshenson/claude-code-plugins/apply-style
Any agent
npx skills add stellarshenson/claude-code-plugins --skill apply-style
Clone the repo
git clone --depth 1 https://github.com/stellarshenson/claude-code-plugins

Made for: Claude Code, Codex.

Or install datascience, the plugin that ships this one along with the rest of its 20 skills, 15 commands.

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 apply-style

README.md
[![agentmods](https://agentmods.dev/badge/skills/stellarshenson/claude-code-plugins/apply-style.svg)](https://agentmods.dev/skills/stellarshenson/claude-code-plugins/apply-style)
Your own site
<a href="https://agentmods.dev/skills/stellarshenson/claude-code-plugins/apply-style"><img src="https://agentmods.dev/badge/skills/stellarshenson/claude-code-plugins/apply-style.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 279 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 $0.00021 $0.00279
Opus 5 $0.00010 $0.00139
Sonnet 5 $0.00004 $0.00056
Haiku 4.5 $0.00002 $0.00028

Measured 4d ago against content hash f82a3a5e56d6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

apply-style 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 4d 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.

plugins/datascience/skills/apply-style/SKILL.md · 30 lines

What it actually says

Apply Rich Styling

Read a file and fix all rich output to comply with the datascience:notebook-standards skill's references/rich-output.md palette.

Reference to apply

datascience:notebook-standardsreferences/rich-output.md - read this resource first. It is the single source of truth for colors, patterns, and rules. Do NOT duplicate its content here.

What to fix

  1. Multiple individual prints -> single multiline print (per skill)
  2. Wrong colors -> semantic colors (per skill palette)
  3. Missing rich formatting - plain print() for structured output -> rprint()
  4. Import fixes - missing from rich import print as rprint
  5. Hex colors -> standard named colors (per skill)

Process

  1. Read the file
  2. Read notebook-standards references/rich-output.md for current palette and rules
  3. List violations with line numbers
  4. Apply fixes directly
  5. Show summary
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. 4d ago First seen · 30 lines · 21 tokens per session scan A f82a3a5e56d6

Subscribe to this mod's changes

apply-style is a skill published in the GitHub repository stellarshenson/claude-code-plugins (3 stars, last pushed 4d ago), licensed MIT. It adds 21 tokens to every session and 279 once invoked, about $0.0001 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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