Paper2html
QuZhan51496/paper2anything
Convert an academic paper PDF into a publish-ready, self-contained single-page project homepage (a self-contained index.html) — the kind of paper landing page researchers host on GitHub Pages.
Call Claude from your HTML artifacts via window.claude.complete
Install Claude API In Prototypes
$ npx skills add asgeirtj/system_prompts_leaks --skill claude-api-in-prototypes -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install asgeirtj/system_prompts_leaks claude-api-in-prototypes --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/asgeirtj/system_prompts_leaks.git skills-src && mkdir -p .claude/skills && cp -r skills-src/Anthropic/claude-design/skills/claude-api-in-prototypes .claude/skills/claude-api-in-prototypes && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "claude-api-in-prototypes" agent skill from https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/claude-api-in-prototypes into .claude/skills/claude-api-in-prototypes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claude-api-in-prototypes", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/claude-api-in-prototypesType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add asgeirtj/system_prompts_leaks --skill claude-api-in-prototypes -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install asgeirtj/system_prompts_leaks claude-api-in-prototypes --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/asgeirtj/system_prompts_leaks.git skills-src && mkdir -p .agents/skills && cp -r skills-src/Anthropic/claude-design/skills/claude-api-in-prototypes .agents/skills/claude-api-in-prototypes && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "claude-api-in-prototypes" agent skill from https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/claude-api-in-prototypes into .agents/skills/claude-api-in-prototypes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claude-api-in-prototypes", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add asgeirtj/system_prompts_leaks --skill claude-api-in-prototypes -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install asgeirtj/system_prompts_leaks claude-api-in-prototypes --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/asgeirtj/system_prompts_leaks.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/Anthropic/claude-design/skills/claude-api-in-prototypes .cursor/skills/claude-api-in-prototypes && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "claude-api-in-prototypes" agent skill from https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/claude-api-in-prototypes into .cursor/skills/claude-api-in-prototypes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claude-api-in-prototypes", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/asgeirtj/system_prompts_leaks.git --path Anthropic/claude-design/skills/claude-api-in-prototypes--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add asgeirtj/system_prompts_leaks --skill claude-api-in-prototypes -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install asgeirtj/system_prompts_leaks claude-api-in-prototypes --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/asgeirtj/system_prompts_leaks.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/Anthropic/claude-design/skills/claude-api-in-prototypes .gemini/skills/claude-api-in-prototypes && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "claude-api-in-prototypes" agent skill from https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/claude-api-in-prototypes into .gemini/skills/claude-api-in-prototypes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claude-api-in-prototypes", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install asgeirtj/system_prompts_leaks claude-api-in-prototypesInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add asgeirtj/system_prompts_leaks --skill claude-api-in-prototypes -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/asgeirtj/system_prompts_leaks.git skills-src && mkdir -p .github/skills && cp -r skills-src/Anthropic/claude-design/skills/claude-api-in-prototypes .github/skills/claude-api-in-prototypes && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "claude-api-in-prototypes" agent skill from https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/claude-api-in-prototypes into .github/skills/claude-api-in-prototypes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claude-api-in-prototypes", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add asgeirtj/system_prompts_leaks --skill claude-api-in-prototypes -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install asgeirtj/system_prompts_leaks claude-api-in-prototypes --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/asgeirtj/system_prompts_leaks.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/Anthropic/claude-design/skills/claude-api-in-prototypes .opencode/skills/claude-api-in-prototypes && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "claude-api-in-prototypes" agent skill from https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/claude-api-in-prototypes into .opencode/skills/claude-api-in-prototypes/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claude-api-in-prototypes", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
claude-api-in-prototypes- GitHub stars
- 69k
- Token cost
- ~281 tokens
- SKILL.md length
- 107 words
- Files
- 1
- Skills in repo
- 124
- Repo updated
- First seen
- Licence
- CC0-1.0
At a glance
Call Claude from your HTML artifacts via window.claude.complete
- Tasks that involve LLM API integration
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Tasks that involve HTML artifacts
What it does
Claude API In Prototypes is an agent skill from asgeirtj/system_prompts_leaks. Call Claude from your HTML artifacts via window.claude.complete
Its SKILL.md is about 280 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in AI & LLM Engineering, covering LLM API integration and HTML artifacts. It works with Anthropic API. The repository describes itself as: Documented system prompts from Anthropic - Claude Fable 5.1, Opus 5.5, Claude Design, Claude Code. OpenAI - ChatGPT GPT-6-Astra, Codex. Google - Gemini 3.8 Flash, 3.1 Pro… The licence is CC0-1.0.
When your agent uses it
- Tasks that involve LLM API integration
- Tasks that involve HTML artifacts
Example prompts
- “/claude-api-in-prototypes”
What it can do on your machine
Read from SKILL.md and the folder at commit e31ec21. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are html).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Claude API In Prototypes loads about 281 tokens when it runs. Until then it costs about 22 tokens; SKILL.md has 107 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from asgeirtj/system_prompts_leaks at commit e31ec21, republished under its CC0-1.0 licence (© asgeirtj). 107 words, ~281 tokens.
Download SKILL.mdSave it as
.claude/skills/claude-api-in-prototypes/SKILL.md (or your agent's skills folder).- name
- claude-api-in-prototypes
- description
- Call Claude from your HTML artifacts via window.claude.complete
- user-invocable
- true
Claude API in prototypes
Your HTML artifacts can call Claude via a built-in helper. No SDK or API key needed.
<script>
(async () => {
const text = await window.claude.complete("Summarize this: ...");
// or with a messages array:
const text2 = await window.claude.complete({
messages: [{ role: 'user', content: '...' }],
});
})();
</script>Calls default to claude-haiku-4-5 with a 1024-token output cap. The body may also set model (haiku/sonnet families only), max_tokens (up to 32000), system, tool_choice, and client tools — standard Messages API shapes, except each tool also carries run: async (input) => string and the helper executes tool calls in-page and loops (max 8 model calls), resolving with the final text. Handler throws become is_error tool_results. Server tools (web search etc.) are rejected; no streaming; rate-limited 15 calls/minute per user, loop iterations included. Shared artifacts run under the viewer's quota.
© asgeirtj, CC0-1.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in Anthropic/claude-design/skills/claude-api-in-prototypes of asgeirtj/system_prompts_leaks.
Open the folder on GitHubat commit e31ec21
Compare with similar skills
Claude API In Prototypes next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Claude API In Prototypes this skillasgeirtj/system_prompts_leaks | 69k | — | ~281 | Automated safety check: Pass | CC0-1.0 | |
| Paper2htmlQuZhan51496/paper2anything | 469 | — | ~3.3k | Automated safety check: Notes | Apache-2.0 | |
| Claude APIterrense/LilBot-agent | 121 | — | ~155 | Automated safety check: Pass | None | |
| Claude APIkid-sid/claude-spellbook | 190 | — | ~2.7k | Automated safety check: Pass | MIT | |
| Prompt Caching Patternssoftspark/ai-toolkit | 179 | — | ~1.1k | Automated safety check: Pass | Apache-2.0 | |
| Clade Hello Worldjeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~873 | Automated safety check: Pass | MIT |
Similar skills
Claude API
terrense/LilBot-agent
Help with Claude/LLM API usage, models, and integration patterns.
Claude API
kid-sid/claude-spellbook
A skill your agent uses when building or debugging apps that call the Claude API — implementing tool use, streaming, vision, prompt caching, batch processing, extended thinking, or an agentic loop…
Prompt Caching Patterns
softspark/ai-toolkit
Anthropic API prompt caching: TTL, breakpoints, stacking, invalidation, hit rate.
Clade Hello World
jeremylongshore/tons-of-skills-marketplace
Send your first message to Claude using the Anthropic SDK. An agent skill from jeremylongshore/tons-of-skills-marketplace.
Clade Install Auth
jeremylongshore/tons-of-skills-marketplace
Install and configure the Anthropic SDK for Claude API access.
More from asgeirtj/system_prompts_leaks
All 124 skills in this repoFleet Manager for Agent Sessions
asgeirtj/system_prompts_leaks
Shows one digest of coding-agent sessions across your connected machines and lets you open, read, steer, approve, stop and close them, over Herdr, tmux or MSP.
Muse Code Product Doctor
asgeirtj/system_prompts_leaks
Diagnoses a Muse Code installation's own failures from binary and session evidence, instead of treating the report as an ordinary repository bug.
DOCX
asgeirtj/system_prompts_leaks
A skill your agent uses whenever the user wants to create, read, edit, or manipulate Word documents (.docx) or Word templates (.dotx).
Agents Project Coordinator
asgeirtj/system_prompts_leaks
Runs a goal as a project in which the agent coordinates separate agent threads, judging when to split the work, and interviews you first when nothing can be verified.
Muse Plugin Creator
asgeirtj/system_prompts_leaks
Creates and validates a new native Muse plugin package in the current workspace, limited to five capability families, and leaves installation to you.
Deep Research
asgeirtj/system_prompts_leaks
A skill your agent uses when the user's prompt requires (1) researching a topic across multiple sources, comparing options or alternatives, analyzing trends or history, understanding markets or…
Related
Works with
Categories
Questions about Claude API In Prototypes
What does Claude API In Prototypes do?
Call Claude from your HTML artifacts via window.claude.complete. Claude API In Prototypes is an agent skill from asgeirtj/system_prompts_leaks.
When should I use Claude API In Prototypes?
Claude API In Prototypes fits situations like: tasks that involve LLM API integration; tasks that involve HTML artifacts.
How do I install Claude API In Prototypes in Claude Code?
Run `npx skills add asgeirtj/system_prompts_leaks --skill claude-api-in-prototypes -a claude-code`. Or copy the skill folder (Anthropic/claude-design/skills/claude-api-in-prototypes in asgeirtj/system_prompts_leaks) into .claude/skills/claude-api-in-prototypes in your project. Claude Code loads it when a task matches its description.
How do I install Claude API In Prototypes in Codex?
Run `npx skills add asgeirtj/system_prompts_leaks --skill claude-api-in-prototypes -a codex`. Or copy the skill folder (Anthropic/claude-design/skills/claude-api-in-prototypes in asgeirtj/system_prompts_leaks) into .agents/skills/claude-api-in-prototypes in your project. Codex loads it when a task matches its description.
Can I use Claude API In Prototypes in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add asgeirtj/system_prompts_leaks --skill claude-api-in-prototypes -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/claude-api-in-prototypes, .gemini/skills/claude-api-in-prototypes, .github/skills/claude-api-in-prototypes and .opencode/skills/claude-api-in-prototypes in your project.
What does Claude API In Prototypes need to run?
SKILL.md names no scripts, command-line tools or credentials: Claude API In Prototypes is instructions for the agent only.
Does Claude API In Prototypes access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Claude API In Prototypes safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Claude API In Prototypes use?
Claude API In Prototypes is published under the CC0-1.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Claude API In Prototypes use?
About 281 tokens (SKILL.md is roughly 1.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Claude API In Prototypes?
Skills that share tags, products or a category with Claude API In Prototypes: Paper2html (QuZhan51496/paper2anything, 469 stars), Claude API (terrense/LilBot-agent, 121 stars), Claude API (kid-sid/claude-spellbook, 190 stars) and Prompt Caching Patterns (softspark/ai-toolkit, 179 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Claude API In Prototypes?
asgeirtj (a GitHub user) maintains it in asgeirtj/system_prompts_leaks, which has 69,211 GitHub stars. The repository holds 124 skills in this directory. The repository was last updated on October 8, 2026.
Source: asgeirtj/system_prompts_leaks on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.