Bolt vs GitHub CopilotUpdated 2026-03-16

SUMMARY

Bolt (Platform) uses text configuration while GitHub Copilot (IDE) uses markdown. They differ on 4 of 11 compared features. Both tools provide AI-assisted development but take different approaches to project configuration.

FEATURE COMPARISON

FeatureBoltGitHub Copilot
Config formattextmarkdown
Hierarchy support
Global config
Project config
Subdirectory scoping
File inclusion / imports
Ignore file
IDE integrationPlatform
Schema / structureFree-form (Markdown)Free-form (Markdown)
Git committed
EncodingUTF-8UTF-8

FILE MAPPING

PurposeBoltGitHub Copilot
Project instructions.bolt/prompt.github/copilot-instructions.md
Project instructionsAGENTS.md.github/instructions/*.instructions.md

SIDE-BY-SIDE CODE SAMPLES

Bolt
.bolt/prompt
text
You are building a SaaS dashboard application.

Stack: Remix with TypeScript, Prisma ORM, PostgreSQL, TailwindCSS.

Key rules:
- Use server loaders for data fetching, not client-side fetch
- All forms use Remix Form with progressive enhancement
- Use Prisma for all database operations
- Style with TailwindCSS utility classes, no custom CSS
- Components go in app/components/, routes in app/routes/
- Use zod for form validation on both client and server

GitHub Copilot
.github/copilot-instructions.md
markdown
# Copilot Instructions

## Code Style
- Use TypeScript strict mode for all new files
- Prefer functional components with hooks over class components
- Use named exports, not default exports

## Libraries
- Use date-fns for date manipulation (not moment.js)
- Use zod for runtime validation
- Prefer fetch over axios for HTTP requests

## Testing
- Write tests using Vitest
- Use Testing Library for component tests
- Aim for integration tests over unit tests

## Conventions
- Use camelCase for variables, PascalCase for components
- Prefix interfaces with I (e.g., IUserProps)
- Keep files under 300 lines; extract if longer

KEY DIFFERENCES

1. Config format

Bolt: text. GitHub Copilot: markdown.

2. Hierarchy support

Bolt: Not supported. GitHub Copilot: Supported.

3. Subdirectory scoping

Bolt: Not supported. GitHub Copilot: Supported.

4. IDE integration

Bolt: Platform. GitHub Copilot: Supported.

WHICH SHOULD I USE?

Recommendation

Choose based on your IDE/CLI preference. If you use Bolt, configure .bolt/prompt. If you use GitHub Copilot, configure .github/copilot-instructions.md. Many projects include config files for multiple tools so each team member can use their preferred editor.

PORTABILITY TIP

sync-instructions.sh
bash
# Maintain a single source of truth:
cp AI-INSTRUCTIONS.md CLAUDE.md
cp AI-INSTRUCTIONS.md .cursorrules
cp AI-INSTRUCTIONS.md AGENTS.md

SEE ALSO

agentconfig.ing2026-03-16COMPARE(1)