htmlslide CLAUDE.md

htmlslide CLAUDE.md is an instructions file for coding agents from murasamelabo/htmlslide. It costs 280 tokens per session, scanned A, original, MIT.

A project-specific instruction file for Claude Code in an HTML slide editor repository. It explains the code layout, available commands, and rules for changing the project.

In plain words
What is it for?
Use it when editing, testing, building, or reviewing the HTML Slide Studio codebase, including its Markdown, diagrams, assets, exports, and MCP tools.
Why use it?
It gives the coding agent the project context and safety rules needed to make focused changes without breaking existing behavior or exposing private files.

Instructions file

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 instructions/murasamelabo/htmlslide/claude-md
Clone the repo
git clone --depth 1 https://github.com/murasamelabo/htmlslide

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 htmlslide CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/murasamelabo/htmlslide/claude-md.svg)](https://agentmods.dev/instructions/murasamelabo/htmlslide/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/murasamelabo/htmlslide/claude-md"><img src="https://agentmods.dev/badge/instructions/murasamelabo/htmlslide/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 280 This file is loaded in full into every session.
When invoked 280 The same file — it is already loaded in full.
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 $0.00280 $0.00280
Opus 5 $0.00140 $0.00140
Sonnet 5 $0.00056 $0.00056
Haiku 4.5 $0.00028 $0.00028

Measured 2d ago against content hash 49b590038017, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

htmlslide 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 2d 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 · 37 lines

What it actually says

HTML Slide Studio Repository Guide

Commands

npm ci
npm run dev
npm run build
npm test
npm run test:e2e
npm run lint
npm run typecheck
npm run typecheck:mcp
npm run mcp

Architecture

  • src/App.tsx: browser workspace orchestration
  • src/editor/: CodeMirror source editor
  • src/render/: Marp rendering and source mapping
  • src/mermaid/: Mermaid rendering and passive SVG validation
  • src/export/: standalone offline HTML generation
  • src/design/: themes, profiles, and diagnostics
  • src/assets/: browser folder and local asset handling
  • mcp/: MCP tools and constrained deck repository

Repository Rules

  • Keep changes focused and preserve existing public behavior.
  • Use structured parsers for Markdown-adjacent, HTML, SVG, CSS, and YAML work.
  • Preserve path, symlink, asset, and offline-export security boundaries.
  • Never commit customer decks, generated exports, credentials, or local paths.
  • decks/* is ignored except the generic decks/example-deck fixture.
  • Use UTF-8 with BOM for text files unless a format explicitly requires otherwise.
  • Run focused tests after the first edit, then the full validation suite before completion.
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. 2d ago First seen · 37 lines · 280 tokens per session scan A 49b590038017

Subscribe to this mod's changes

htmlslide CLAUDE.md is an instructions file published in the GitHub repository murasamelabo/htmlslide (0 stars, last pushed 1mo ago), licensed MIT. It adds 280 tokens to every session, about $0.0014 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.

Related

Other instructions, from other repositories

markstream-vue AGENTS.md

Instructions for Simon-He95/markstream-vue, covering repository guidelines, project structure & module organization, build, test, and development commands, coding style & naming conventions and testing guidelines.

Simon-He95/markstream-vue · 644 tokens

markout CLAUDE.md

Instructions for maxmilian/markout, covering claude.md, build, test, run, full test suite (swift testing), a single suite or test and build and launch the app.

maxmilian/markout · 1,401 tokens

MarkCardStudio AGENTS.md

AGENTS.md instructions for pangxiaobin/MarkCardStudio, covering repository guide for coding agents, product scope, stack and commands, architecture and important invariants.

pangxiaobin/MarkCardStudio · 2,135 tokens

dbv-md-reader CLAUDE.md

Claude Code instructions for davidbuenov/dbv-md-reader, covering instrucciones del proyecto para claude code — dbv-md-reader and ⚠️ reglas core.

davidbuenov/dbv-md-reader · 366 tokens

dbv-md-reader GEMINI.md

Gemini CLI instructions for davidbuenov/dbv-md-reader: This project follows Spec-Driven Development (SDD) with dbv-specs-ops. Read these files at the start of each session before proposing any code or plan.

davidbuenov/dbv-md-reader · 358 tokens

dbv-md-reader copilot-instructions.md

Copilot instructions for davidbuenov/dbv-md-reader: This project follows Spec-Driven Development (SDD) managed by dbv-specs-ops. Refer to dbv-specs-ops/docs/MASTERPROMPT.md and dbv-specs-ops/docs/SPECIFICATIONS.md. All code edits must comply with the architecture specified in dbv-specs-ops/docs/ARCHITECTURE.md.

davidbuenov/dbv-md-reader · 87 tokens