12 Best Claude Prompts
for Deep Analysis & Long-Form Work

Claude excels at nuanced reasoning, long-context analysis, and following complex multi-step instructions. These 12 prompts leverage Claude's unique strengths — structured XML-style instructions, long documents, ethical nuance, and detailed prose.

Claude tip: Claude responds especially well to structured instructions using XML-style tags like <task>, <context>, and <format>. Several prompts below use this pattern — you'll notice Claude follows it more precisely than most other models.

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Analysis & Research

Prompt 01

Long Document Analysis

Claude's extended context window makes it uniquely capable of analyzing documents that would exceed other models' limits. This prompt extracts insights, contradictions, and implicit assumptions in one pass.

Analyze the following document thoroughly. [[PASTE FULL DOCUMENT TEXT]] 1. **Executive summary** — core message in 3 sentences 2. **Key insights** — 5–8 most important findings, ordered by significance 3. **Internal contradictions** — places where the document contradicts itself 4. **Implicit assumptions** — things taken for granted that should be examined 5. **What's missing** — important topics the document doesn't address 6. **Reliability assessment** — how credible and well-supported is this content? Be precise. Quote specific passages to support your analysis.
AnalysisResearch
Prompt 02

Nuanced Ethical Analysis

Claude's training gives it a particularly strong grasp of ethical nuance. This prompt structures a multi-framework ethical analysis — essential for product decisions, policy work, or complex personal choices.

Perform a multi-framework ethical analysis of the following situation. [[DESCRIBE THE SITUATION OR DECISION]] Analyze through each lens: 1. **Consequentialist** — outcomes and impacts on all affected parties 2. **Deontological** — duties, rights, and rules that apply 3. **Virtue ethics** — what would a person of good character do? 4. **Care ethics** — how does this affect relationships and interdependencies? - Where the frameworks agree - Where they conflict (and why) - The most important consideration in this specific case - Your overall assessment — be direct, not evasive
EthicsDecision Making
Prompt 03

Deep Research Report

Produces a comprehensive, structured research report — complete with confidence levels and knowledge gaps. Claude's attention to epistemic honesty makes this especially reliable.

Write a comprehensive research report on: [[TOPIC]] Report structure: 1. **Abstract** (200 words) 2. **Background** — historical context and why this matters 3. **Current state of knowledge** — what we know with high confidence 4. **Contested areas** — where experts disagree and why 5. **Key data and evidence** — cite specific studies, statistics, or examples 6. **Implications** — practical consequences of this knowledge 7. **Knowledge gaps** — what research is still needed 8. **Confidence assessment** per section: High / Medium / Low Length: 600–900 words. Use headers. Be precise and cite your reasoning.
ResearchLong-form

Writing & Specification

Prompt 04

Technical Specification Writer

Transforms a rough product idea into a properly structured technical spec. Claude's ability to reason about edge cases and ask clarifying questions makes this significantly better than other models.

Write a technical specification document for the following product feature or system. [[DESCRIBE YOUR PRODUCT IDEA OR FEATURE]] Spec structure: 1. **Overview** — what this is and why it exists 2. **Goals & non-goals** — what's in scope and explicitly out of scope 3. **User stories** — 3–5 key use cases in "As a [user], I want [goal]" format 4. **Functional requirements** — numbered list of must-have behaviors 5. **Technical design** — components, data flow, key decisions 6. **Edge cases & error handling** — what can go wrong and how to handle it 7. **Open questions** — decisions that still need to be made 8. **Success metrics** — how will we know this works? If any section requires information I haven't provided, mark it with [TBD: question].
Technical WritingProduct
Prompt 05

Multi-Perspective Essay

Claude writes genuinely balanced essays that represent multiple viewpoints fairly — without the false balance or strawmanning common in other models.

Write a balanced, multi-perspective essay on the following topic. Topic: [[CONTROVERSIAL TOPIC OR QUESTION]] Length: [[600 / 900 / 1200 words]] Requirements: - Present at least 3 distinct perspectives with equal depth and fairness - Steel-man each position — argue it at its best, not its weakest - Include relevant evidence or examples for each viewpoint - Acknowledge the strongest objections to each perspective - End with a synthesis section — not a fence-sitting conclusion, but a genuine assessment of where the weight of the argument lies - Do not be evasive. Take a position in the synthesis.
WritingAnalysis
Prompt 06

Contract & Legal Document Summary

Claude's careful, precise reading makes it excellent for legal documents. This prompt extracts what actually matters — obligations, risks, and red flags — without legal jargon.

Analyze the following contract or legal document and summarize it in plain language. [[PASTE DOCUMENT TEXT]] Provide: 1. **What this document is** (1 sentence) 2. **Key obligations** — what each party must do 3. **Key rights** — what each party is entitled to 4. **Important deadlines and timeframes** 5. **Termination conditions** — how and when this can end 6. **Liability and indemnification clauses** — explained simply 7. **Red flags** — unusual, one-sided, or concerning clauses 8. **Missing protections** — what's not in here that should be Note: This is not legal advice. Consult a lawyer before signing.
LegalAnalysis

Coding & Technical

Prompt 07

Code Architecture Review

Goes beyond line-by-line review to assess the big-picture design decisions — scalability, coupling, and long-term maintainability. Claude's reasoning depth makes this more insightful than typical linters.

Perform an architectural review of the following codebase or module. ``` [[PASTE CODE OR DESCRIBE THE ARCHITECTURE]] ``` Language / framework: [[LANGUAGE/FRAMEWORK]] Scale: [[current users/requests per day, team size]] Review: 1. **Coupling & cohesion** — are components properly separated? 2. **Scalability** — where will this break under load? 3. **Testability** — how easy is this to test, and what's hard? 4. **Security posture** — architectural-level security concerns 5. **Technical debt** — what shortcuts now will hurt later? 6. **Biggest risk** — the single most dangerous architectural decision 7. **Top 3 recommendations** — prioritized and actionable
ArchitectureCoding
Prompt 08

System Prompt Engineer

Helps design and refine system prompts for AI applications. Claude's unique insight into how language models interpret instructions makes it especially good at this meta-task.

Help me design a system prompt for an AI assistant with the following purpose: Purpose: [[WHAT THE AI SHOULD DO]] Target users: [[WHO WILL USE IT]] Key behaviors: [[what it must always / never do]] Tone: [[formal / friendly / technical / etc.]] Please: 1. Write a complete system prompt draft 2. Explain the reasoning behind each major instruction 3. Identify 3 edge cases where the prompt might fail or produce bad output 4. Suggest 2 alternative versions with different tradeoffs 5. Provide 3 test prompts I can use to verify the system prompt works correctly
AI EngineeringPrompting

Strategy & Business

Prompt 09

Strategic Business Analysis

Combines SWOT with Porter's Five Forces for a thorough competitive analysis. Claude's structured reasoning produces more actionable insights than surface-level summaries.

Perform a strategic analysis of the following business or product. Business: [[DESCRIBE THE BUSINESS / PRODUCT]] Industry: [[INDUSTRY]] Stage: [[startup / growth / mature]] Analysis: **SWOT:** - Strengths (internal, specific) - Weaknesses (internal, honest) - Opportunities (external, time-bound) - Threats (external, specific) **Porter's Five Forces:** - Competitive rivalry - Threat of new entrants - Bargaining power of suppliers - Bargaining power of buyers - Threat of substitutes **Strategic recommendations:** Top 3 actions with highest leverage, ordered by impact. Include reasoning and risks for each.
StrategyBusiness
Prompt 10

Philosophical Deep Dive

Claude engages with philosophical questions with genuine rigor — tracing arguments through history, identifying tensions, and reaching non-trivial conclusions.

Engage with the following philosophical question in depth. Question: [[PHILOSOPHICAL QUESTION OR CONCEPT]] Structure your response as: 1. **The question unpacked** — what exactly is being asked, and why it's hard 2. **Historical treatment** — how major thinkers have approached this 3. **The strongest arguments** on each side 4. **Where the arguments break down** — limits and objections 5. **Your assessment** — be direct, not evasive 6. **Practical implications** — how does the answer change how we should act? Engage at the level of someone with a philosophy degree. Don't oversimplify.
PhilosophyAnalysis
Prompt 11

Creative Writing with Style Guide

Claude's long context window and instruction-following make it exceptional at adhering to a detailed style guide over thousands of words — critical for consistent long-form creative work.

Write a piece of creative fiction following a detailed style guide. Genre: [[GENRE]] Tone: [[e.g. melancholic, darkly comic, tense]] POV: [[first person / third person limited / omniscient]] Tense: [[past / present]] Sentence style: [[e.g. short and punchy / flowing and complex]] Avoid: [[specific words, tropes, or clichés to avoid]] Inspired by: [[authors or works to draw from stylistically]] [[YOUR STORY PROMPT OR PREMISE]] Length: [[500 / 1000 / 2000 words]] Write without preamble. Start the story immediately.
Creative WritingLong-form
Prompt 12

Structured Debate Preparation

Prepares you to argue any position by mapping the full argument landscape — your strongest points, anticipated objections, and the best responses to each.

Prepare me to argue the following position in a debate or discussion. [[THE POSITION YOU NEED TO ARGUE]] Audience: [[who you're arguing to]] Format: [[formal debate / meeting / written argument]] Prepare: 1. **Your 3 strongest arguments** — with evidence and examples 2. **The 3 strongest counterarguments** you'll face 3. **Rebuttal for each counterargument** — how to deflect or turn it 4. **The one concession** you should proactively make (signals good faith) 5. **Killer opening line** — a single sentence that frames the debate in your favor 6. **Questions to ask your opponent** that expose weaknesses in their position
DebateCommunication

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