Claude Agent Prompts
Ready to Use
A curated library of .md agent files built for Anthropic's Claude. Paste into a Claude Project or pass as a system prompt via the API — and instantly give Claude a specialist's knowledge of your task.
Every agent is reviewed before going live. No generic prompts, no recycled templates — only well-engineered instructions tested against real Claude outputs, written by practitioners who use Claude in production every day.
Claude Projects
Paste into instructions
API-ready
Use as system prompt
200k ctx
Long-context optimised
Reviewed
Admin-approved before live
Why use agents with Claude?
200k context window
Claude can read an entire codebase, legal document, or research paper in one shot. Agents that need full-document understanding shine on Claude.
Instruction following
Claude follows detailed, nuanced instructions reliably — which means complex agents with structured output requirements work as written, not approximately.
Best-in-class writing
For content creation, marketing copy, and long-form writing, Claude consistently produces the most natural, human-readable output of any model.
Safety by default
Claude's constitutional AI training means it's less likely to hallucinate facts or produce harmful output — important for business and legal use cases.
What can Claude agents do?
Claude handles technical and non-technical tasks equally well. Here's a snapshot of the most popular use cases covered in AgentHut's Claude library.
Long-Form Writing & Content
Claude's 200k context window makes it ideal for drafting articles, reports, and whitepapers. Agents that maintain tone, structure, and brand voice across thousands of words.
Legal & Contract Analysis
Agents trained to spot risky clauses, summarise contract obligations, and flag non-standard terms — helping lawyers and non-lawyers alike move faster.
Code Generation & Review
Claude excels at understanding large codebases in a single context window. Agents for Python, JavaScript, TypeScript, and SQL — review, refactor, explain, or rewrite.
Research & Summarisation
Feed Claude a long document and have an agent extract key findings, generate executive summaries, or produce structured research briefs in minutes.
HR & Interview Preparation
Create structured interview rubrics, write job descriptions, draft offer letters, and build onboarding materials with agents that know HR best practices inside out.
Marketing & Copywriting
Agents for ad copy, email sequences, landing page headlines, and social media content — each trained on proven copywriting frameworks like AIDA and PAS.
Claude agent prompts
Sorted by most-downloaded. All reviewed, all ready to use.
How to use a Claude agent in 4 steps
- 1
Pick an agent
Browse the grid below. Filter by category to find agents built for your use case — coding, writing, legal, HR, marketing, or research.
- 2
Download the .md file
Each agent is a Markdown file with a complete system prompt, usage guide, and example inputs. One click to download.
- 3
Create a Claude Project
In claude.ai, open a new Project and paste the agent content into the 'Project Instructions' field. The agent is now active for every conversation in that project.
- 4
Use via API (optional)
Pass the agent content as the system parameter in the Anthropic API. Works with claude-3-5-sonnet, claude-3-opus, and all other Claude models.
Frequently asked questions
What is a Claude agent prompt?
A Claude agent prompt is a system instruction written specifically for Anthropic's Claude models. It defines how Claude should behave — its role, tone, reasoning approach, and output format — for a specific task. AgentHut agents are .md files you can paste directly into Claude Projects or pass as a system prompt via the API.
Which Claude models do these agents support?
All AgentHut Claude agents are written to work with any Claude 3 or Claude 3.5 model — including claude-3-5-sonnet, claude-3-opus, and claude-3-haiku. Agents that need a long context window will note this in their prerequisites.
How do I use a Claude agent in claude.ai?
Download the .md file from the agent's detail page. In claude.ai, click 'New Project', then go to 'Project Instructions' and paste the agent's content. Every new conversation in that project will follow the agent's instructions automatically.
Can I use these agents with the Anthropic API?
Yes. Pass the agent content as the system parameter in your API call. For example: messages.create(model='claude-3-5-sonnet-20241022', system='[agent content here]', ...). All AgentHut agents are plain text Markdown — no special formatting required.
Are Claude agents different from ChatGPT prompts?
Yes, though both are instruction files. Claude agents are optimised for Claude's instruction-following style, its constitutional AI principles, and its handling of long-context tasks. They often produce noticeably better results on Claude than a generic prompt would.
Can I publish my own Claude agents?
Yes. Sign up for a free AgentHut account, open the Creator Studio, and upload your .md file. After admin review, it's live on the marketplace. You can also earn from downloads by setting a premium price once you've hit the popularity threshold.
Start using Claude smarter today
Create a free AgentHut account and download your first Claude agent in under 60 seconds. No credit card required.