How do I install the Anthropic skill?

Run npx skillmds@latest add ashish7802/anthropic in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Anthropic skill do?

Anthropic API Skill It is listed under Integrations & APIs on SkillMD.

Is Anthropic safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Anthropic?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Anthropic free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Anthropic?

ashish7802 (@ashish7802) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Anthropic by ashish7802 — Agent Skill

Name: Anthropic
Author: ashish7802

File contents

Anthropic API Skill

Overview

Anthropic's API provides access to the Claude 3 family (Opus, Sonnet, Haiku). This skill focuses on the Messages API, vision capabilities, and strict system prompt isolation.

Installation

npm install @anthropic-ai/sdk
pip install anthropic

Authentication

Use the x-api-key header with your ANTHROPIC_API_KEY. You must also supply the anthropic-version header (e.g., 2023-06-01).

Core Concepts

System Prompt: Isolated from the main conversation array for higher adherence.
Claude 3.5 Sonnet: The recommended default model for speed and coding intelligence.
Max Tokens: Required parameter defining the generation limit (e.g., 4096 or 8192).

Common Workflows

Define the system prompt.
Pass the conversation history alternating precisely between user and assistant.
Process the response blocks.

Error Handling

Handle AnthropicError. The OverloadedError indicates capacity constraints; retry with backoff. AuthenticationError indicates invalid or revoked keys.

Security

Anthropic provides inherent safety filters. Ensure system prompts instruct the model to avoid executing unverified external data.

Rate Limits

Tiered rate limits applied per minute (RPM) and tokens per minute (TPM). Tier 1 for Claude 3 Sonnet is 50 RPM and 40,000 TPM.

Best Practices

Always put long reference documents inside <documents> XML tags. Claude is specifically trained to parse and pay closer attention to XML structures.

Troubleshooting

If the API returns a 'roles must alternate' error, ensure your messages array strictly follows a user -> assistant -> user sequence without duplicate consecutive roles.

References

API Reference

Why use this skill

Use this when your agent works with anthropic — structured patterns beat pasted docs and prevent common hallucinations.

AI pitfalls

Using deprecated model IDs or wrong API endpoints
Confusing chat vs completions vs embeddings APIs
Omitting rate-limit and token budget handling

Production checklist

Secrets in environment variables, not source code
Error handling and logging in place
Rate limits and timeouts configured

Related skills

No graph relationships yet — see the knowledge graph in the docs site.

Last Verified: 2026-07-02

---name: anthropicdescription: Anthropic API Skill---# Anthropic API Skill## OverviewAnthropic's API provides access to the Claude 3 family (Opus, Sonnet, Haiku). This skill focuses on the Messages API, vision capabilities, and strict system prompt isolation.## Installation```bashnpm install @anthropic-ai/sdkpip install anthropic```## AuthenticationUse the `x-api-key` header with your `ANTHROPIC_API_KEY`. You must also supply the `anthropic-version` header (e.g., `2023-06-01`).## Core Concepts- **System Prompt**: Isolated from the main conversation array for higher adherence.- **Claude 3.5 Sonnet**: The recommended default model for speed and coding intelligence.- **Max Tokens**: Required parameter defining the generation limit (e.g., 4096 or 8192).## Common Workflows1. Define the system prompt.2. Pass the conversation history alternating precisely between `user` and `assistant`.3. Process the response blocks.## Error HandlingHandle `AnthropicError`. The `OverloadedError` indicates capacity constraints; retry with backoff. `AuthenticationError` indicates invalid or revoked keys.## SecurityAnthropic provides inherent safety filters. Ensure system prompts instruct the model to avoid executing unverified external data.## Rate LimitsTiered rate limits applied per minute (RPM) and tokens per minute (TPM). Tier 1 for Claude 3 Sonnet is 50 RPM and 40,000 TPM.## Best PracticesAlways put long reference documents inside `<documents>` XML tags. Claude is specifically trained to parse and pay closer attention to XML structures.## TroubleshootingIf the API returns a 'roles must alternate' error, ensure your `messages` array strictly follows a `user` -> `assistant` -> `user` sequence without duplicate consecutive roles.## References- [API Reference](https://docs.anthropic.com/en/api/getting-started)## Why use this skillUse this when your agent works with **anthropic** — structured patterns beat pasted docs and prevent common hallucinations.## AI pitfalls- Using deprecated model IDs or wrong API endpoints- Confusing chat vs completions vs embeddings APIs- Omitting rate-limit and token budget handling## Production checklist- [ ] Secrets in environment variables, not source code- [ ] Error handling and logging in place- [ ] Rate limits and timeouts configured## Related skills- No graph relationships yet — see the knowledge graph in the docs site.---> **Last Verified:** 2026-07-02

Frequently asked questions