Mise for Zed

Syntax highlighting and utilities for mise configuration files in Zed IDE.

Features

• 🎨 Syntax Highlighting for .mise.toml and mise.toml files
• 📝 Support for all mise sections: [tools], [env], [tasks], [vars], [hooks], [plugins], [settings]
• 🏷️ Task property highlighting: run, depends, description, sources, dir, env, etc.
• 🔤 Environment variable detection (UPPERCASE identifiers)
• 🎯 Tera template syntax highlighting ({{ env.VAR }}, {{ cwd }})
• ⚡ Performance-optimized with #any-of? predicates

Installation

1. Open Zed
2. Open Extensions (Cmd+Shift+X)
3. Search for "mise"
4. Click Install

Supported Files

• mise.toml
• .mise.toml
• mise.local.toml
• .mise.local.toml

Example

[tools]
python = "3.12"
node = "22"
uv = "latest"

[env]
NODE_ENV = "development"
DATABASE_URL = "{{ env.DATABASE_URL }}"

[tasks.dev]
description = "Start development server"
run = "uv run python -m uvicorn main:app --reload"
depends = ["install"]

[hooks.enter]
run = "uv sync --quiet"

Development

Building Locally

# Build the extension
cargo build

# Build for release (optimized)
cargo build --release

# Run tests (when added)
cargo test

Project Structure

src/lib.rs              # Main extension logic with slash commands
languages/mise/
├── config.toml         # Language configuration
└── highlights.scm      # Tree-sitter highlighting rules
Cargo.toml              # Rust dependencies
extension.toml          # Zed extension manifest

Slash Commands

This extension provides helpful utilities for working with mise:

• /mise-init [language...] - Generate mise.toml templates for specific stacks (python, node, nextjs, go, rust, deno, bun, docker, terraform)
• /mise-task create [stack...] - Add task templates to mise.toml
• /mise-env - Display mise environment information

Testing

To test the extension:

1. Build: cargo build
2. Open Zed and press Cmd+Shift+P → "Reload Extensions" or restart Zed
3. Create a test file: test.mise.toml
4. Verify syntax highlighting works
5. Try slash commands: type / and look for mise-init, mise-task, mise-env

Architecture

The extension uses Zed's extension API to provide:

1. Syntax Highlighting - Tree-sitter based via highlights.scm
2. Slash Commands - Interactive utilities for generating mise configurations
3. Command Completion - Smart argument suggestions for each command

Contributing

Contributions are welcome! Please ensure:

• Code compiles without warnings: cargo build --release
• Syntax highlighting improvements in languages/mise/highlights.scm
• New slash commands follow the existing pattern in src/lib.rs

Issues & Feature Requests

Found a bug or have a feature idea? Open an issue on GitHub.

License

MIT License - Copyright (c) 2024-2026 Franco Tampieri - TTlab