web-vaccine-tracker: Instructions file for Claude Code

CLAUDE.md

web-vaccine-tracker CLAUDE.md is an instructions file for Claude Code from damiansire/web-vaccine-tracker. It costs 1,998 tokens per session, scanned A, original, MIT.

Project instructions for a web application that displays historical COVID-19 vaccination data. The data comes from Our World in Data and is included in the project instead of being fetched from a live API.

In plain words
What is it for?
Working on the vaccination dashboard, using its built-in dataset, following its React and Vite structure, and maintaining readable shared components and data visualizations.
Why use it?
They explain the project's fixed data source, architecture, naming rules, and interface expectations. This helps prevent agents from treating the application as a live-data service or duplicating project logic.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions CLAUDE.md.

This is damiansire/web-vaccine-tracker's own configuration. It tells Claude Code how to work on web-vaccine-tracker itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything web-vaccine-tracker configures →

Reuse

Borrowing it

Nothing to install: this file belongs to damiansire/web-vaccine-tracker. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/damiansire/web-vaccine-tracker/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/damiansire/web-vaccine-tracker

Made for: Claude Code.

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 web-vaccine-tracker CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/damiansire/web-vaccine-tracker/claude-md/github.svg)](https://agentmods.dev/instructions/damiansire/web-vaccine-tracker/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/damiansire/web-vaccine-tracker/claude-md"><img src="https://agentmods.dev/badge/instructions/damiansire/web-vaccine-tracker/claude-md/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 web-vaccine-tracker CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/damiansire/web-vaccine-tracker/claude-md"><img src="https://agentmods.dev/badge/instructions/damiansire/web-vaccine-tracker/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,998 This file is loaded in full into every session.
When invoked 1,998 The same file — it is already loaded in full.
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 $0.01998 $0.01998
Opus 5 $0.00999 $0.00999
Sonnet 5 $0.00400 $0.00400
Haiku 4.5 $0.00200 $0.00200

Measured 9d ago against content hash 31948b5b94e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

web-vaccine-tracker CLAUDE.md 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 9d 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.

CLAUDE.md · 120 lines

How it starts

The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md — web-vaccine-tracker

Panel histórico de vacunación COVID-19. El dominio está cerrado (la pandemia terminó): no hay API en vivo, el dataset es el histórico completo de Our World in Data horneado a build-time en src/data/ (formato columnar {fields, rows}, ver ese directorio cuando exista). Arquetipo: app de dataviz, no librería — no aplican reglas de exports map / tree-shaking / publicación npm.

Estándar nivel mundial

Construido con /fragua nuevo vite-react-ts sobre el corpus de ~/.claude/tools/_audit-tools/refs/. Todo código nuevo se escribe CONTRA esto, no se audita después.

Piso Craft (regla de Intención Clara — refs/architecture/fellow-standard.md)

  • a. Nombres de dominio, no de mecanismodaily_vaccinations, no data/item.
  • b. Comentarios explican el PORQUÉ, nunca el QUÉ.
  • c. La firma pública se entiende sin leer el cuerpo.
  • d/e. Un cambio de regla se edita en UN lugar. Ya nos mordió una vez (ver git logSelectCountry duplicado en dos carpetas del repo viejo, un fix aplicado a una copia y no a la otra). Si aparece una segunda variante de un componente, extraer un shared/ parametrizable antes de que diverjan.
  • f/g. Estado inmutable, consistente ante excepción. El dataset es estático e inmutable en runtime — cualquier useState/derivado debe tratarlo como read-only; nada de mutar los JSON importados.
  • h. Fallos de carga de datos se loguean, nunca se tragan. Un país sin archivo (import() que rechaza) es un boundary — no un .catch(() => []) silencioso sin traza. El bug de pantalla-en-blanco del repo anterior (home rota por Promise.all sin .catch) fue exactamente esto.
  • i. Toda carga async tiene manejo de fallo explícito — usar Promise.allSettled cuando un país faltante no debe tumbar el batch completo.
  • j. N/A (no hay auth/permisos en este repo — dataset público estático).

Piso Legibilidad en frío (k–m)

  • k. El README lidera con una captura/GIF real del panel, no solo texto — es un artefacto visual, la descripción sola no cuenta como prueba.
  • l. N/A por ahora — no hay claim de perf/robustez que probar hasta que exista el pipeline de datos real; cuando se agregue el fetch/build de OWID, documentar con qué se validó (conteo de filas, rango de fechas, países cubiertos).
  • m. Framing honesto: el README debe decir explícitamente que los datos son históricos y fijos (no un tracker en vivo) — no reusar lenguaje de "en tiempo real" heredado de la versión COVID-era.

Read the full file on GitHub · 120 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. 9d ago First seen · 120 lines · 1,998 tokens per session scan A 31948b5b94e5

Subscribe to this mod's changes

web-vaccine-tracker CLAUDE.md is an instructions file published in the GitHub repository damiansire/web-vaccine-tracker (23 stars, last pushed 1mo ago), licensed MIT. It adds 1,998 tokens to every session, about $0.0100 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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