Prompt Engineering Guide

Master prompt engineering for AI models via inference.sh CLI.

Quick Start

CODEBLOCK0python\nuserinput = request.args.get(\"query\")\nresult = db.execute(f\"SELECT * FROM users WHERE name = {userinput}\")\n``\n\nProvide specific issues and fixes." }' CODEBLOCK1 [Role/Context] + [Task] + [Constraints] + [Output Format] CODEBLOCK2bash infsh app run openrouter/claude-sonnet-45 --input '{ "prompt": "You are an expert data scientist with 15 years of experience in machine learning. Explain gradient descent to a beginner, using simple analogies." }' CODEBLOCK3bash # Bad: vague "Help me with my code" # Good: specific "Debug this Python function that should return the sum of even numbers from a list, but returns 0 for all inputs: def sum_evens(numbers): total = 0 for n in numbers: if n % 2 == 0: total += n return total Identify the bug and provide the corrected code." CODEBLOCK4bash infsh app run openrouter/claude-sonnet-45 --input '{ "prompt": "Solve this step by step:\n\nA store sells apples for $2 each and oranges for $3 each. If someone buys 5 fruits and spends $12, how many of each fruit did they buy?\n\nThink through this step by step before giving the final answer." }' CODEBLOCK5bash infsh app run openrouter/claude-sonnet-45 --input '{ "prompt": "Convert these sentences to formal business English:\n\nExample 1:\nInput: gonna send u the report tmrw\nOutput: I will send you the report tomorrow.\n\nExample 2:\nInput: cant make the meeting, something came up\nOutput: I apologize, but I will be unable to attend the meeting due to an unforeseen circumstance.\n\nNow convert:\nInput: hey can we push the deadline back a bit?" }' CODEBLOCK6bash infsh app run openrouter/claude-sonnet-45 --input '{ "prompt": "Analyze the sentiment of these customer reviews. Return a JSON array with objects containing \"text\", \"sentiment\" (positive/negative/neutral), and \"confidence\" (0-1).\n\nReviews:\n1. \"Great product, fast shipping!\"\n2. \"Meh, its okay I guess\"\n3. \"Worst purchase ever, total waste of money\"\n\nReturn only valid JSON, no explanation." }' CODEBLOCK7bash infsh app run openrouter/claude-sonnet-45 --input '{ "prompt": "Summarize this article in exactly 3 bullet points. Each bullet must be under 20 words. Focus only on actionable insights, not background information.\n\n[article text]" }' CODEBLOCK8 [Subject] + [Style] + [Composition] + [Lighting] + [Technical] CODEBLOCK9bash # Bad: vague "a cat" # Good: specific infsh app run falai/flux-dev --input '{ "prompt": "A fluffy orange tabby cat with green eyes, sitting on a vintage leather armchair" }' CODEBLOCK10bash infsh app run falai/flux-dev --input '{ "prompt": "Portrait photograph of a woman, shot on Kodak Portra 400 film, soft natural lighting, shallow depth of field, nostalgic mood, analog photography aesthetic" }' CODEBLOCK11bash infsh app run falai/flux-dev --input '{ "prompt": "Wide establishing shot of a cyberpunk city skyline at night, rule of thirds composition, neon signs in foreground, towering skyscrapers in background, rain-slicked streets" }' CODEBLOCK12 photorealistic, 8K, ultra detailed, sharp focus, professional, masterpiece, high quality, best quality, intricate details CODEBLOCK13bash infsh app run falai/flux-dev --input '{ "prompt": "Professional headshot portrait, clean background", "negative_prompt": "blurry, distorted, extra limbs, watermark, text, low quality, cartoon, anime" }' CODEBLOCK14 [Shot Type] + [Subject] + [Action] + [Setting] + [Style] CODEBLOCK15bash infsh app run google/veo-3-1-fast --input '{ "prompt": "Slow tracking shot following a woman walking through a sunlit forest, golden hour lighting, shallow depth of field, cinematic, 4K" }' CODEBLOCK16bash infsh app run google/veo-3-1-fast --input '{ "prompt": "Close-up of hands kneading bread dough on a wooden surface, flour dust floating in morning light, slow motion, cozy baking aesthetic" }' CODEBLOCK17 slow motion, timelapse, real-time, smooth motion, continuous shot, quick cuts, frozen moment CODEBLOCK18bash infsh app run openrouter/claude-sonnet-45 --input '{ "system": "You are a helpful coding assistant. Always provide code with comments. If you are unsure about something, say so rather than guessing.", "prompt": "Write a Python function to validate email addresses using regex." }' CODEBLOCK19bash infsh app run openrouter/claude-sonnet-45 --input '{ "prompt": "Extract information from this text and return as JSON:\n\n\"John Smith, CEO of TechCorp, announced yesterday that the company raised $50 million in Series B funding. The round was led by Venture Partners.\"\n\nSchema:\n{\n \"person\": string,\n \"title\": string,\n \"company\": string,\n \"event\": string,\n \"amount\": string,\n \"investor\": string\n}" }' CODEBLOCK20bash # Start broad infsh app run falai/flux-dev --input '{ "prompt": "A castle on a hill" }' # Add specifics infsh app run falai/flux-dev --input '{ "prompt": "A medieval stone castle on a grassy hill" }' # Add style infsh app run falai/flux-dev --input '{ "prompt": "A medieval stone castle on a grassy hill, dramatic sunset sky, fantasy art style, epic composition" }' # Add technical infsh app run falai/flux-dev --input '{ "prompt": "A medieval stone castle on a grassy hill, dramatic sunset sky, fantasy art style by Greg Rutkowski, epic composition, 8K, highly detailed" }' CODEBLOCK21bash # First: analyze infsh app run openrouter/claude-sonnet-45 --input '{ "prompt": "Analyze this business problem: Our e-commerce site has a 70% cart abandonment rate. List potential causes." }' # Second: prioritize infsh app run openrouter/claude-sonnet-45 --input '{ "prompt": "Given these causes of cart abandonment: [previous output], rank them by likely impact and ease of fixing. Format as a priority matrix." }' # Third: action plan infsh app run openrouter/claude-sonnet-45 --input '{ "prompt": "For the top 3 causes identified, provide specific A/B tests we can run to validate and fix each issue." }' CODEBLOCK22 Review this [language] code for: 1. Bugs and logic errors 2. Security vulnerabilities 3. Performance issues 4. Code style/best practices Code: [code] For each issue found, provide: - Line number - Issue description - Severity (high/medium/low) - Suggested fix CODEBLOCK23 Write a [content type] about [topic]. Audience: [target audience] Tone: [formal/casual/professional] Length: [word count] Key points to cover: 1. [point 1] 2. [point 2] 3. [point 3] Include: [specific elements] Avoid: [things to exclude] CODEBLOCK24 [Subject with details], [setting/background], [lighting type], [art style or photography style], [composition], [quality keywords] CODEBLOCK25bash # Video prompting guide npx skills add inference-sh/skills@video-prompting-guide # LLM models npx skills add inference-sh/skills@llm-models # Image generation npx skills add inference-sh/skills@ai-image-generation # Full platform skill npx skills add inference-sh/skills@inference-sh ` Browse all apps: infsh app list`