TUE, JULY 21, 2026
Independent · In‑Depth · Practitioner‑Tested
Kimi Coding

Best Kimi K3 Prompts for Coding (2026)

Kimi K3 ranks #1 globally on Design Arena frontend coding (1679 Elo) and #1 on SWE Marathon (42.0%) — making it the strongest available model for frontend development and long-horizon agentic coding tasks. At $3/$15/M with 1M context on Allegretto+ tier, it offers the best price-to-coding-capability ratio of any frontier model. These prompts are optimised for Kimi Code CLI, the Kimi API, and kimi.com on Allegretto+ or Vivace tiers.

⌨️ 6 prompts 🕐 Updated Jul 21, 2026
💡 How to use these prompts: Replace everything in [BRACKETS] with your specific details before sending. Click Copy to copy any prompt to your clipboard instantly.
1
Build a Frontend Component
Build any frontend component with accessibility built in
Build a [COMPONENT TYPE — e.g. dropdown menu, data table, modal, form] in [FRAMEWORK — React / Vue / Svelte / plain HTML]. Requirements: - [REQUIREMENT 1] - [REQUIREMENT 2] Style with [Tailwind / CSS Modules / styled-components — specify]. Make it accessible (ARIA labels, keyboard navigation). Output clean, commented code I can paste directly.
2
Convert Design to Code
Convert a design description into clean frontend code
Convert the following design description into working [FRAMEWORK] code: Design: [DESCRIBE THE UI IN DETAIL — layout, colors, typography, interactions] Breakpoints: [MOBILE / TABLET / DESKTOP requirements] Interactions: [HOVER STATES / ANIMATIONS / CLICK BEHAVIOR] Output production-ready code.
3
Long-Horizon Refactor
Execute a multi-step refactor across multiple files
I need to refactor [MODULE NAME] as part of a larger codebase migration. This is a multi-step task: Step 1: [DESCRIBE FIRST CHANGE] Step 2: [DESCRIBE SECOND CHANGE] Step 3: [DESCRIBE THIRD CHANGE] Constraints: - Do not break the public API - Maintain all existing tests - Each step should be independently committable Context: [PASTE RELEVANT CODE] Work through each step systematically.
4
Debug With Full Context
Debug complex bugs by sharing your full codebase context
I have a bug: [DESCRIBE THE BUG BEHAVIOR] Relevant files: [PASTE UP TO 1M TOKENS OF RELEVANT CODE] Please: 1. Identify the exact root cause 2. Show the fix 3. Explain why the bug occurred 4. Suggest a test to prevent regression
5
Optimize CSS and Layout
Clean up and optimize CSS for better performance
Review and optimize the following CSS/layout code. Focus on: - Removing redundant or conflicting rules - Improving responsive behavior - Reducing specificity conflicts - Improving render performance [PASTE CSS HERE] Context: [FRAMEWORK / BROWSER TARGETS / KNOWN ISSUES]
6
Write Integration Tests
Generate integration tests for any feature or API
Write integration tests for the following feature or API endpoint. Use [FRAMEWORK — Playwright / Cypress / Supertest — specify]. Feature: [DESCRIBE WHAT IS BEING TESTED] Cover: - Happy path with expected inputs - Error states and edge cases - Auth or permissions requirements Code to test: [PASTE RELEVANT CODE]