mira-chart-race

mira-chart-race is a skill for Claude Code, Codex from sandeco/mira-animator. It costs 177 tokens per session (4,805 once invoked), scanned A, original, no licence file.

A tool for creating animated race charts, where data changes over time and the chart plays once until the end. It supports moving bars or lines that draw over time, using CSV data and D3.js.

In plain words
What is it for?
Use it for time-series slides with ranking bars or lines whose labels follow the leading value.
Why use it?
It helps show changing rankings or trends as an animated sequence instead of a still chart. The result can run offline from a local file.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it for time-series slides with ranking bars or lines whose labels follow the leading value.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sandeco/mira-animator/mira-chart-race
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 sandeco/mira-animator --skill mira-chart-race
Clone the repo
git clone --depth 1 https://github.com/sandeco/mira-animator

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 mira-chart-race

README.md
[![agentmods](https://agentmods.dev/badge/skills/sandeco/mira-animator/mira-chart-race/github.svg)](https://agentmods.dev/skills/sandeco/mira-animator/mira-chart-race)
Your own site
<a href="https://agentmods.dev/skills/sandeco/mira-animator/mira-chart-race"><img src="https://agentmods.dev/badge/skills/sandeco/mira-animator/mira-chart-race/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 mira-chart-race

Your own site · 80×15
<a href="https://agentmods.dev/skills/sandeco/mira-animator/mira-chart-race"><img src="https://agentmods.dev/badge/skills/sandeco/mira-animator/mira-chart-race.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 177 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,805 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 unknown 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 $0.00177 $0.04805
Opus 5 $0.00088 $0.02403
Sonnet 5 $0.00035 $0.00961
Haiku 4.5 $0.00018 $0.00481

Measured 12d ago against content hash 6af147662c5b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

mira-chart-race 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 12d 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.

agents/mira-chart-race/SKILL.md · 259 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 12d ago First seen · 259 lines · 177 tokens per session scan A 6af147662c5b

Subscribe to this mod's changes

mira-chart-race is a skill published in the GitHub repository sandeco/mira-animator (199 stars, last pushed 16d ago), with no licence file. It adds 177 tokens to every session and 4,805 once invoked, about $0.0009 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 2026-08-30.

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