Anthropic Prompt Library Examples: 50+ Claude Templates

<task>Review this code and provide detailed feedback</task>

<code>
{{PASTE_YOUR_CODE_HERE}}
</code>

<review_criteria>
  <security>Check for vulnerabilities, injection risks, and unsafe patterns</security>
  <performance>Identify bottlenecks, inefficient algorithms, and memory issues</performance>
  <maintainability>Assess readability, naming conventions, and documentation</maintainability>
  <best_practices>Verify adherence to language-specific conventions</best_practices>
</review_criteria>

<output_format>
  For each issue found:
  1. Location (file/line if applicable)
  2. Severity (Critical/High/Medium/Low)
  3. Description of the issue
  4. Suggested fix with code example
</output_format>

<task>Create a well-designed function</task>

<requirements>
  <function_name>{{FUNCTION_NAME}}</function_name>
  <language>{{LANGUAGE: TypeScript, Python, etc.}}</language>
  <purpose>{{DESCRIBE_WHAT_IT_SHOULD_DO}}</purpose>
  <inputs>{{EXPECTED_INPUTS}}</inputs>
  <outputs>{{EXPECTED_OUTPUTS}}</outputs>
</requirements>

<thinking>
Before writing the code, think through:
- Edge cases that need handling
- Error conditions and how to handle them
- Performance considerations
- Type safety (if applicable)
</thinking>

<output>
Provide:
1. The complete function with type annotations
2. JSDoc/docstring documentation
3. Unit test examples
4. Usage example
</output>

<task>Conduct comprehensive research analysis</task>

<topic>{{YOUR_RESEARCH_TOPIC}}</topic>

<research_parameters>
  <scope>{{Broad overview / Deep dive / Comparative analysis}}</scope>
  <perspective>{{Academic / Business / Technical / Consumer}}</perspective>
  <time_frame>{{Last 6 months / Last year / All time}}</time_frame>
</research_parameters>

<analysis_framework>
  <current_state>What is the current landscape?</current_state>
  <key_players>Who are the major stakeholders?</key_players>
  <trends>What patterns are emerging?</trends>
  <challenges>What obstacles exist?</challenges>
  <opportunities>What gaps can be exploited?</opportunities>
  <predictions>Where is this heading?</predictions>
</analysis_framework>

<output_requirements>
  <format>Structured report with sections</format>
  <length>2000-3000 words</length>
  <citations>Include sources where possible</citations>
  <visuals>Suggest charts/graphs where helpful</visuals>
</output_requirements>

<task>Summarize and extract key insights</task>

<document>
{{PASTE_DOCUMENT_OR_DESCRIBE_CONTENT}}
</document>

<extraction_goals>
  <main_thesis>What is the central argument or purpose?</main_thesis>
  <key_points>List 5-7 most important points</key_points>
  <evidence>What data or examples support the claims?</evidence>
  <implications>What are the practical takeaways?</implications>
  <questions>What questions remain unanswered?</questions>
</extraction_goals>

<output_format>
  <executive_summary>2-3 sentences</executive_summary>
  <detailed_breakdown>Bullet points by section</detailed_breakdown>
  <action_items>Concrete next steps if applicable</action_items>
</output_format>

<task>Write a comprehensive blog post</task>

<topic>{{YOUR_TOPIC}}</topic>

<seo_requirements>
  <primary_keyword>{{MAIN_KEYWORD}}</primary_keyword>
  <secondary_keywords>{{KEYWORD_1, KEYWORD_2, KEYWORD_3}}</secondary_keywords>
  <search_intent>{{Informational / Transactional / Navigational}}</search_intent>
</seo_requirements>

<content_specifications>
  <length>2000-2500 words</length>
  <tone>{{Professional / Conversational / Technical}}</tone>
  <audience>{{Describe target reader}}</audience>
  <format>
    - H1 title (include primary keyword)
    - Meta description (150-160 chars)
    - Introduction with hook
    - 4-6 H2 sections with H3 subsections
    - Bulleted lists where appropriate
    - Conclusion with CTA
  </format>
</content_specifications>

<examples>
Provide 1-2 examples of the style you want
</examples>

<task>Create an email nurture sequence</task>

<campaign_context>
  <product>{{YOUR_PRODUCT_OR_SERVICE}}</product>
  <goal>{{Lead nurturing / Onboarding / Re-engagement}}</goal>
  <audience>{{Describe your audience}}</audience>
  <sequence_length>{{NUMBER}} emails over {{TIMEFRAME}}</sequence_length>
</campaign_context>

<email_requirements>
  For each email provide:
  <subject_line>Compelling, under 50 chars</subject_line>
  <preview_text>Supporting hook, under 90 chars</preview_text>
  <body>
    - Personal opening
    - Value proposition
    - Single clear CTA
    - P.S. line if appropriate
  </body>
  <send_timing>Day and suggested time</send_timing>
</email_requirements>

<brand_voice>
  <tone>{{Friendly / Professional / Urgent}}</tone>
  <personality>{{Describe brand personality}}</personality>
</brand_voice>