Claude Cookbooks Reference
2025Emma/vibe-coding-cn
Reference of Claude API examples and guides covering tool use, vision, RAG, classification, summarization, text-to-SQL, prompt caching and agent patterns.
Create a minimal working Anthropic Claude Messages API example.
Install Anth Hello World
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill anth-hello-world -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace anth-hello-world --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/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/anth-hello-world .claude/skills/anth-hello-world && 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 "anth-hello-world" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/anth-hello-world into .claude/skills/anth-hello-world/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "anth-hello-world", 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/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/anth-hello-worldType 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 jeremylongshore/tons-of-skills-marketplace --skill anth-hello-world -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace anth-hello-world --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/.curated/anth-hello-world .agents/skills/anth-hello-world && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "anth-hello-world" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/anth-hello-world into .agents/skills/anth-hello-world/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "anth-hello-world", 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 jeremylongshore/tons-of-skills-marketplace --skill anth-hello-world -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace anth-hello-world --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/.curated/anth-hello-world .cursor/skills/anth-hello-world && 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 "anth-hello-world" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/anth-hello-world into .cursor/skills/anth-hello-world/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "anth-hello-world", 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/jeremylongshore/tons-of-skills-marketplace.git --path skills/.curated/anth-hello-world--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 jeremylongshore/tons-of-skills-marketplace --skill anth-hello-world -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace anth-hello-world --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/.curated/anth-hello-world .gemini/skills/anth-hello-world && 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 "anth-hello-world" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/anth-hello-world into .gemini/skills/anth-hello-world/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "anth-hello-world", 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 jeremylongshore/tons-of-skills-marketplace anth-hello-worldInstalls 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 jeremylongshore/tons-of-skills-marketplace --skill anth-hello-world -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/.curated/anth-hello-world .github/skills/anth-hello-world && 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 "anth-hello-world" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/anth-hello-world into .github/skills/anth-hello-world/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "anth-hello-world", 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 jeremylongshore/tons-of-skills-marketplace --skill anth-hello-world -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace anth-hello-world --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/.curated/anth-hello-world .opencode/skills/anth-hello-world && 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 "anth-hello-world" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/anth-hello-world into .opencode/skills/anth-hello-world/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "anth-hello-world", 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
anth-hello-world- GitHub stars
- 2.8k
- Token cost
- ~1.3k tokens
- SKILL.md length
- 281 words
- Files
- 1
- Skills in repo
- 3,342
- Repo updated
- First seen
- Licence
- MIT
At a glance
Create a minimal working Anthropic Claude Messages API example.
- Starting a new Claude integration
- SKILL.md covers Overview, Prerequisites, Instructions and Output, plus 5 more sections
- Needs ANTHROPIC_API_KEY
- Testing your setup
What it does
Anth Hello World is an agent skill from jeremylongshore/tons-of-skills-marketplace. Create a minimal working Anthropic Claude Messages API example. Use when starting a new Claude integration, testing your setup, or learning basic Messages API patterns for text, vision, and streaming. Trigger with phrases like "anthropic hello world", "claude api example", "anthropic quick start", "simple claude code", "first messages api call".
Its SKILL.md is about 1.3k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: Designed for Claude Code
It sits in AI & LLM Engineering, covering LLM API integration and Integration testing. It works with Anthropic API and Python. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.
When your agent uses it
- Starting a new Claude integration
- Testing your setup
- Learning basic Messages API patterns for text
- With phrases like anthropic hello world
Example prompts
- “anthropic hello world”
- “claude api example”
- “anthropic quick start”
- “/anth-hello-world”
Requirements
- Python 3
- Node.js
- A credential in ANTHROPIC_API_KEY
- Compatibility (from SKILL.md): Designed for Claude Code
- Pre-approved tools (allowed-tools): Read, Write, Edit
What it can do on your machine
Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadWriteEdit
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 python and typescript).
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
platform.claude.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names these keys or tokens, usually read from environment variables:
ANTHROPIC_API_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Compatibility
Designed for Claude Code
From compatibility in the SKILL.md frontmatter.
Context cost
Anth Hello World loads about 1.3k tokens when it runs. Until then it costs about 91 tokens; SKILL.md has 281 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 jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 281 words, ~1,257 tokens.
Download SKILL.mdSave it as
.claude/skills/anth-hello-world/SKILL.md (or your agent's skills folder).- name
- anth-hello-world
- description
- Create a minimal working Anthropic Claude Messages API example. Use when starting a new Claude integration, testing your setup, or learning basic Messages API patterns for text, vision, and streaming. Trigger with phrases like "anthropic hello world", "claude api example", "anthropic quick start", "simple claude code", "first messages api call".
- allowed-tools
- Read, Write, Edit
- compatibility
- Designed for Claude Code
- version
- 1.7.0
- license
- MIT
- author
- Jeremy Longshore <jeremy@intentsolutions.io>
- tags
- saas, ai, anthropic
Anthropic Hello World
Overview
Three minimal examples covering the Claude Messages API core surfaces: basic text completion, vision (image analysis), and streaming responses.
Prerequisites
- Completed
anth-install-authsetup - Valid
ANTHROPIC_API_KEYin environment - Python 3.8+ with
anthropicpackage or Node.js 18+ with@anthropic-ai/sdk
Instructions
Example 1: Basic Text Message (Python)
import anthropic
client = anthropic.Anthropic()
message = client.messages.create(
model="claude-sonnet-4-20250514",
max_tokens=1024,
messages=[
{"role": "user", "content": "Explain quantum computing in 3 sentences."}
]
)
# Response structure
print(message.content[0].text) # The actual text response
print(f"ID: {message.id}") # msg_01XFDUDYJgAACzvnptvVoYEL
print(f"Model: {message.model}") # claude-sonnet-4-20250514
print(f"Stop: {message.stop_reason}")# end_turn
print(f"Usage: {message.usage.input_tokens}in / {message.usage.output_tokens}out")Example 2: Vision — Analyze an Image (TypeScript)
import Anthropic from '@anthropic-ai/sdk';
import * as fs from 'fs';
const client = new Anthropic();
// From file (base64)
const imageData = fs.readFileSync('chart.png').toString('base64');
const message = await client.messages.create({
model: 'claude-sonnet-4-20250514',
max_tokens: 1024,
messages: [{
role: 'user',
content: [
{
type: 'image',
source: {
type: 'base64',
media_type: 'image/png',
data: imageData,
},
},
{ type: 'text', text: 'Describe what this chart shows.' },
],
}],
});
console.log(message.content[0].type === 'text' ? message.content[0].text : '');Example 3: Streaming Response (Python)
import anthropic
client = anthropic.Anthropic()
with client.messages.stream(
model="claude-sonnet-4-20250514",
max_tokens=1024,
messages=[{"role": "user", "content": "Write a haiku about APIs."}]
) as stream:
for text in stream.text_stream:
print(text, end="", flush=True)
# Get final message with full metadata
final = stream.get_final_message()
print(f"\nTokens used: {final.usage.input_tokens}+{final.usage.output_tokens}")Output
- Working code file with Claude client initialization
- Successful API response with text content
- Console output showing model response and usage metadata
Examples
Use the text example first when verifying credentials: send a fixed, short
prompt and confirm that message.content[0].text is present before integrating
the client into application code. Use the vision example only after that check
passes and replace chart.png with a non-sensitive local fixture. For an
interactive command-line feature, use the streaming example so text is emitted
incrementally, then read the final message to capture token usage for logs or
cost controls.
Error Handling
| Error | HTTP Code | Cause | Solution |
|---|---|---|---|
authentication_error | 401 | Invalid API key | Check ANTHROPIC_API_KEY |
invalid_request_error | 400 | Bad params (e.g., empty messages) | Validate request body |
rate_limit_error | 429 | Too many requests | Implement backoff (see anth-rate-limits) |
overloaded_error | 529 | API temporarily overloaded | Retry after 30-60s |
api_error | 500 | Server error | Retry with exponential backoff |
Key API Parameters
| Parameter | Required | Description |
|---|---|---|
model | Yes | Model ID: claude-sonnet-4-20250514, claude-haiku-4-20250514, claude-opus-4-20250514 |
max_tokens | Yes | Maximum output tokens (model-dependent max) |
messages | Yes | Array of {role, content} objects |
system | No | System prompt (string or content blocks) |
temperature | No | 0.0-1.0, default 1.0 |
top_p | No | Nucleus sampling (use temperature OR top_p) |
stop_sequences | No | Array of strings that stop generation |
stream | No | Enable SSE streaming |
Resources
Next Steps
Proceed to anth-local-dev-loop for development workflow setup.
© jeremylongshore, MIT. 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 skills/.curated/anth-hello-world of jeremylongshore/tons-of-skills-marketplace.
Open the folder on GitHubat commit cfae287
Compare with similar skills
Anth Hello World 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 |
|---|---|---|---|---|---|---|
| Anth Hello World this skilljeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~1.3k | Automated safety check: Pass | MIT | |
| Claude Cookbooks Reference2025Emma/vibe-coding-cn | 23k | 1 repos | ~2.2k | Automated safety check: Pass | MIT | |
| Claude APIloulanyue/awesome-claude-notes | 272 | 2 repos | ~2.1k | Automated safety check: Pass | MIT | |
| Claude API Developmentwarpdotdev/warp | 65k | 3 repos | ~8.2k | Automated safety check: Pass | Apache-2.0 | |
| Aivisonism1767-creator/potato | 166 | — | ~757 | Automated safety check: Pass | MIT | |
| Claude APIloulanyue/awesome-claude-notes | 272 | 1 repos | ~1.9k | Automated safety check: Pass | MIT |
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Works with
Categories
Questions about Anth Hello World
What does Anth Hello World do?
Create a minimal working Anthropic Claude Messages API example. Anth Hello World is an agent skill from jeremylongshore/tons-of-skills-marketplace. Create a minimal working Anthropic Claude Messages API example.
When should I use Anth Hello World?
Anth Hello World fits situations like: starting a new Claude integration; testing your setup; learning basic Messages API patterns for text; with phrases like anthropic hello world.
How do I install Anth Hello World in Claude Code?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill anth-hello-world -a claude-code`. Or copy the skill folder (skills/.curated/anth-hello-world in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/anth-hello-world in your project. Claude Code loads it when a task matches its description.
How do I install Anth Hello World in Codex?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill anth-hello-world -a codex`. Or copy the skill folder (skills/.curated/anth-hello-world in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/anth-hello-world in your project. Codex loads it when a task matches its description.
Can I use Anth Hello World 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 jeremylongshore/tons-of-skills-marketplace --skill anth-hello-world -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/anth-hello-world, .gemini/skills/anth-hello-world, .github/skills/anth-hello-world and .opencode/skills/anth-hello-world in your project.
What does Anth Hello World need to run?
Going by SKILL.md and its folder, Anth Hello World needs credentials named ANTHROPIC_API_KEY. Our summary lists: Python 3; Node.js; A credential in ANTHROPIC_API_KEY. Its frontmatter pre-approves these tools: Read, Write, Edit. Compatibility (from SKILL.md): Designed for Claude Code.
Does Anth Hello World access the network?
SKILL.md names 1 domain. As links in the text: platform.claude.com. This is read from the text; nothing was executed.
Is Anth Hello World 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 Anth Hello World use?
Anth Hello World is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Anth Hello World use?
About 1.3k tokens (SKILL.md is roughly 5k 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 Anth Hello World?
Skills that share tags, products or a category with Anth Hello World: Claude Cookbooks Reference (2025Emma/vibe-coding-cn, 23k stars), Claude API (loulanyue/awesome-claude-notes, 272 stars), Claude API Development (warpdotdev/warp, 65k stars) and Aivis (onism1767-creator/potato, 166 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Anth Hello World?
jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.
Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.