What is NOSTALGIA-Chart-Render CLAUDE.md?

Project instructions for IncimathCal's NOSTALGIA-Chart-Render codebase. They describe the project structure, dependencies, setup steps, and main architecture.

They are for understanding how to start, navigate, and modify the NOSTALGIA-Chart-Render project.

They give an agent the project-specific context needed to work consistently in that repository.

How IncimathCal/NOSTALGIA-Chart-Render configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to IncimathCal/NOSTALGIA-Chart-Render. 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/IncimathCal/NOSTALGIA-Chart-Render/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/IncimathCal/NOSTALGIA-Chart-Render

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/incimathcal/nostalgia-chart-render/claude-md/github.svg)](https://agentmods.dev/instructions/incimathcal/nostalgia-chart-render/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/incimathcal/nostalgia-chart-render/claude-md"><img src="https://agentmods.dev/badge/instructions/incimathcal/nostalgia-chart-render/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/incimathcal/nostalgia-chart-render/claude-md"><img src="https://agentmods.dev/badge/instructions/incimathcal/nostalgia-chart-render/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,045 This file is loaded in full into every session.

When invoked 2,045 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.02045	$0.02045
Opus 5.5	$0.00818	$0.00818
Sonnet 5.5	$0.00409	$0.00409
Haiku 4.5	$0.00204	$0.00204

Measured 2mo ago against content hash e588000a00c3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

NOSTALGIA-Chart-Render 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 2mo 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 · 199 lines

The source is not reproduced here

No licence file

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.

2mo ago First seen · 199 lines · 2,045 tokens per session scan A e588000a00c3

Subscribe to this mod's changes

NOSTALGIA-Chart-Render CLAUDE.md is an instructions file published in the GitHub repository IncimathCal/NOSTALGIA-Chart-Render (11 stars, last pushed 6mo ago), with no licence file. It adds 2,045 tokens to every session, about $0.0082 per session on Opus 5.5. 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.

NOSTALGIA-Chart-Render CLAUDE.md next to 6 instructions from other repositories
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NOSTALGIA-Chart-Render: Instructions file for Claude Code