Fable5 prompt templates

53 ready-to-paste prompts for working with Claude Fable5 — across creative writing, research, coding, marketing, learning, productivity, and review. Fill in the [brackets], copy, and paste into your Claude app.

System prompt presets

Eleven real-world agent configurations — each opens in the prompt generator with task type, autonomy, and advanced modules pre-filled. Tweak and copy the full system prompt from there.

Software Engineering

React Component Refactor

Popular

Refactor legacy Class components to modern Hooks, ensuring all tests pass

Open in generator

Software Engineering

API Debug & Fix

Systematically diagnose and fix REST API performance bottlenecks and error handling

Open in generator

Software Engineering

Full-Stack Feature Development

Complex task

Implement complete user authentication from scratch: frontend, backend, and database

Open in generator

Research & Analysis

Competitor Deep Analysis

Popular

Comprehensive analysis of competitor features, pricing, and market positioning

Open in generator

Research & Analysis

Technology Stack Research

Evaluate and compare multiple technology options with evidence-based recommendations

Open in generator

Data Processing

Data Cleaning Pipeline

Build an automated data cleaning and transformation pipeline with standardized output

Open in generator

Data Processing

Log Analysis & Report

Analyze server logs to identify anomaly patterns and generate visual reports

Open in generator

Content Creation

Technical Documentation

Write complete, clear developer documentation for APIs or open-source projects

Open in generator

Content Creation

Product Copywriting

Creative

Write landing page copy for SaaS products emphasizing core value propositions

Open in generator

Agentic Workflow

Automated Code Review Agent

Agent

Act as a CI/CD agent to automatically review PRs with structured suggestions

Open in generator

Agentic Workflow

Multi-Step Research Pipeline

Long task

Automatically execute a complete research workflow: collection, analysis, writing

Open in generator

Copy-and-paste prompt templates

42 single-message prompts across 7 categories. Pick a category, fill in the [brackets], and copy.

Creative Writing

Short story

Write a [genre] short story set in [setting], told from the perspective of [character]. Keep it under [400] words, with a clear beginning, turn, and ending. Tone: [folktale / noir / hopeful].

World-building brief

Create a world-building brief for [world name]: geography, political tension, one daily-life detail, and one unresolved mystery. Format as four short sections with headers.

Character voice test

Write the same 120-word monologue three times, in three distinct voices: [a weary mentor], [an overconfident rookie], [a quiet observer]. Label each version.

Dialogue-only scene

Write a dialogue-only scene between [character A] and [character B] who disagree about [topic]. No narration. End on an unspoken compromise.

Constrained poem

Write a [12]-line poem about [subject] that never names it directly. Use concrete imagery only — no abstract nouns.

Opening-paragraph critique

Critique the following opening paragraph for pacing, voice, and hook strength. Quote specific phrases, then suggest one rewrite. Text: [paste].

Research & Analysis

Structured comparison

Compare [option A] and [option B] for [use case]. Return a table with criteria rows: cost, learning curve, ecosystem, risks. End with a 2-sentence verdict and a confidence level.

Assumption audit

List every assumption hidden in this claim: "[claim]". Mark each as testable or untestable, and suggest how to verify the top three.

Balanced summary

Summarize the key arguments for and against [topic] in under 250 words. Attribute each argument to its typical proponents and note where the evidence is weakest.

Pros, cons, verdict

Give pros, cons, and a final verdict on [decision]. Limit to 5 bullets each, ranked by importance to [stakeholder].

Data interpretation

Given these figures: [paste data], describe three trends, one anomaly, and one question the data cannot answer. Avoid speculation beyond the numbers.

Steelman both sides

Steelman the strongest case FOR and AGAINST [position] in two 150-word passages, then identify the crux that actually separates them.

Coding & Debugging

Bug diagnosis

Here is an error and the relevant code: [paste]. List the three most likely root causes in order of probability, the fastest way to confirm each, and the minimal fix.

Code review

Review this function for correctness, readability, and edge cases: [paste code]. Point to specific lines, then show a revised version.

Refactor plan

Propose a refactor plan for [module description] that can ship in [3] small, independently testable steps. Note the risk of each step.

Test generation

Write [unit] tests for this function covering the happy path, boundary values, and one failure mode: [paste code]. Use [framework].

Explain code

Explain what this code does as if to a developer new to [language], then list two things that could break under load: [paste code].

API design check

Critique this API endpoint design for naming, status codes, and versioning: [describe endpoint]. Suggest a corrected spec.

Marketing & Copy

Headline variants

Generate 5 headline variants for [product] aimed at [audience]. Vary the angle: outcome, pain point, curiosity, social proof, urgency. Max 9 words each.

Landing-page hero

Write a landing-page hero for [product]: headline (max 8 words), subheadline (max 20 words), and 3 benefit bullets. Tone: plain, confident, no hype words.

Onboarding email sequence

Draft a 3-email onboarding sequence for [product]: welcome, activation nudge, social proof. Subject lines plus 80-word bodies. One clear CTA per email.

Positioning statement

Write a positioning statement for [product]: for [audience] who [need], unlike [alternative], it [key difference]. Then translate it into one casual sentence.

Platform-specific posts

Turn this announcement into 3 platform-specific posts (X, LinkedIn, newsletter blurb): [paste announcement]. Match each platform's tone and length norms.

Objection handling

List the top 5 objections [audience] would have to [offer], and write a one-paragraph response to each that concedes what's true before countering.

Learning & Teaching

Explain to a beginner

Explain [concept] to someone new to the field. Use one everyday analogy, one concrete example, and end with the single most common misconception.

Study plan

Build a [4]-week study plan for learning [skill] at [2] hours per week. Each week: a goal, the type of resource to use, and one self-test. Assume no prior background.

Quiz generation

Create a 10-question quiz on [topic]: 6 multiple choice, 3 short answer, 1 applied scenario. Include an answer key with one-line explanations.

Socratic tutor

Act as a Socratic tutor on [topic]. Ask me one question at a time, adapting to my answers. Never explain directly until I ask or fail twice.

Analogy finder

Give three analogies for [concept] drawn from [cooking / sports / city planning], and note where each analogy breaks down.

Misconception check

Here is my understanding of [topic]: [paste]. Identify what's right, what's subtly wrong, and what's missing — in that order.

Productivity & Planning

Meeting agenda

Draft a [30]-minute meeting agenda to decide [decision]: pre-reads, 3 timed discussion blocks, a decision protocol, and owner assignments.

Weekly priorities

Here is my task list: [paste]. Group into Now / Next / Later using impact vs urgency, flag anything delegatable, and identify the one task that unblocks others.

One-page project brief

Turn this idea into a one-page project brief: [idea]. Sections: problem, success metric, scope (in/out), risks, first milestone.

Decision matrix

Build a weighted decision matrix for choosing between [options] using criteria: [list them, or propose 5]. Show the scoring and how sensitive the result is to the weights.

Retrospective

Run a written retrospective on [project]: what worked, what didn't, what we'd change, plus one experiment for the next cycle. Keep each section to 3 bullets.

Thread triage

Summarize this thread and draft a reply: [paste]. The reply should confirm decisions, list open questions, and propose the next step in under 120 words.

Review & Safety

Prompt safety check

Review this prompt for ambiguity, missing context, and potential for harmful or biased output: [paste prompt]. Suggest a safer, clearer rewrite.

Fact-check pass

List every factual claim in this text and rate each: well-established / needs source / likely wrong. Text: [paste].

Bias scan

Identify framing, selection, and wording bias in this passage: [paste]. Rewrite one paragraph in a neutral register.

Privacy scrub

Flag any personal or identifying information in this text and return a redacted version with placeholders: [paste].

Source quality rubric

Evaluate this source for reliability: [link or description]. Score authorship, evidence, recency, and incentives from 1–5, with one-line justifications.

Pre-publish checklist

Before I publish this, check for: unsupported claims, tone slips, missing caveats, and legal red flags. Return a pass/fix table. Text: [paste].

How to get the most from these templates

Templates work because they pin down the parts models guess at: the role, the audience, the output format, and the limits. Replace every bracket before running — a half-filled template produces vague output. Change one variable at a time when iterating, so you know what caused the improvement.

When a customized version works well, save your own copy; the best template library is the one you grow yourself. For long-running agent tasks, start from a system-prompt preset above and refine it in the generator.

Template FAQ

Common questions about using these prompt templates.

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