HyCanvas: Instructions file for Claude Code

CLAUDE.md

HyCanvas CLAUDE.md is an instructions file for Claude Code from hyscaler/HyCanvas. It costs 2,849 tokens per session, scanned A, original, AGPL-3.0.

Project-specific instructions for working on HyCanvas, including its technology choices, folder layout, and the files that define the source of truth. A monorepo is one repository containing multiple related parts of a project.

In plain words
What is it for?
Use it when asking an agent to understand, edit, or extend the hyscaler/HyCanvas codebase.
Why use it?
It gives a coding agent the project context it needs before changing files, reducing guesses about where code belongs or which guidance to follow.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is hyscaler/HyCanvas's own configuration. It tells Claude Code how to work on HyCanvas 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 HyCanvas configures →

Reuse

Borrowing it

Nothing to install: this file belongs to hyscaler/HyCanvas. 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/hyscaler/HyCanvas/development/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/hyscaler/HyCanvas

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 HyCanvas CLAUDE.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/hyscaler/hycanvas/claude-md"><img src="https://agentmods.dev/badge/instructions/hyscaler/hycanvas/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 HyCanvas CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/hyscaler/hycanvas/claude-md"><img src="https://agentmods.dev/badge/instructions/hyscaler/hycanvas/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 2,849 This file is loaded in full into every session.
When invoked 2,849 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.02849 $0.02849
Opus 5.5 $0.01140 $0.01140
Sonnet 5.5 $0.00570 $0.00570
Haiku 4.5 $0.00285 $0.00285

Measured 12d ago against content hash 42843092e64a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

HyCanvas 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 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.

CLAUDE.md · 113 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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 Changed · +37 tokens per session 42843092e64a
  2. 22d ago Changed · -2 tokens per session 7d7238ab9113
  3. 23d ago Changed · +15 tokens per session a1f5fcdbd4dd
  4. 2mo ago First seen · 113 lines · 2,799 tokens per session scan A b399be70a1f8

Subscribe to this mod's changes

HyCanvas CLAUDE.md is an instructions file published in the GitHub repository hyscaler/HyCanvas (269 stars, last pushed yesterday), licensed AGPL-3.0. It adds 2,849 tokens to every session, about $0.0114 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.

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