DAML Coder for Visual Studio Code

AI-powered DAML smart contract development assistant for Visual Studio Code. DAML Coder uses a specialized language model (v1.1.3) based on the latest DAML 2.x/3.x patterns, DAML SDK 2.10.2 LTS, Canton Network standards, and CIP-0056 token specifications to generate production-grade contracts, provide conversational assistance, review code security, explain patterns, and debug errors with built-in best practices.

Developed by Tenzro Labs

Features

Chat with DAML Coder via MCP Server

DAML Coder now uses the Model Context Protocol (MCP) to provide AI assistance directly in VSCode's agent mode. The MCP server runs as a tool that VSCode's AI can access for DAML-specific tasks.

Setup:

Install the DAML Coder MCP server:
```
npm install -g @tenzro/daml-coder-mcp
```
Get an API key from team@tenzro.com

Set your API key:

export DAML_CODER_API_KEY="your-api-key-here"

Configure VSCode MCP server in .vscode/mcp.json:

{
  "mcpServers": {
    "daml-coder": {
      "command": "npx",
      "args": ["@tenzro/daml-coder-mcp"],
      "env": {
        "DAML_CODER_API_KEY": "${env:DAML_CODER_API_KEY}"
      }
    }
  }
}

Enable agent mode in VSCode settings: chat.agent.enabled: true
Restart VSCode

Usage:

Open Chat view (Cmd+Shift+I or Ctrl+Shift+I)
Select Agent mode in the chat dropdown
Use the tools picker to enable DAML Coder tools
Ask DAML-related questions naturally

Example prompts:

"Generate a CIP-0056 compliant token with two-step transfer"
"Review this DAML code for security issues"
"Explain the Canton Protocol v7 smart contract upgrade pattern"
"Debug this authorization error in my contract"
"Generate comprehensive tests for my Token template"

The MCP server provides six specialized tools:

generate_daml_code - Generate DAML contracts from descriptions
review_daml_code - Security analysis and review
explain_daml_concept - Explain DAML patterns and concepts
debug_daml_error - Debug errors with fix suggestions
generate_daml_tests - Auto-generate test cases
chat_with_daml_coder - Conversational assistance

Generate Code

Generate complete DAML contracts from natural language descriptions with proper security patterns and best practices.

Usage:

Press Cmd+Shift+G (Mac) or Ctrl+Shift+G (Windows/Linux)
Or: Command Palette > "DAML Coder: Generate Code"
Describe the contract you want to generate
Code is inserted at your cursor position

Example prompts:

"Create a Token template with two-step transfer pattern"
"Generate a CIP-0056 compliant token with metadata"
"Build a multi-signature treasury with 3-of-5 approval"
"Create a token vesting contract with cliff period"

Review Code

Get comprehensive security analysis and improvement suggestions for your DAML contracts. The review examines authorization patterns, validates state transitions, and identifies potential security issues.

Usage:

Press Cmd+Shift+R (Mac) or Ctrl+Shift+R (Windows/Linux)
Or: Right-click in editor > "DAML Coder: Review Code"
Review opens in side panel with specific recommendations

Analysis includes:

Authorization pattern validation (two-step patterns)
Security vulnerability detection
Best practice compliance
Missing validation checks
State transition logic review

Explain Code

Get detailed explanations of DAML code patterns, template structures, and choice implementations.

Usage:

Select the DAML code you want explained
Press Cmd+Shift+E (Mac) or Ctrl+Shift+E (Windows/Linux)
Or: Command Palette > "DAML Coder: Explain Selection"
Explanation opens in side panel

Debug Errors

Get AI-powered assistance debugging DAML compilation and runtime errors with specific fix suggestions.

Usage:

Command Palette > "DAML Coder: Debug Error"
Paste your error message when prompted
Receive analysis and suggested fixes with code examples
Solution opens in side panel

Generate Tests

Automatically generate comprehensive Daml.Script test cases for your contracts, including setup, successful scenarios, and failure cases.

Usage:

Open a DAML contract file
Command Palette > "DAML Coder: Generate Tests"
Test script opens in new editor window

What's New in v1.1.0

MCP Server Integration

DAML Coder now uses Model Context Protocol for chat features
Install via npm: @tenzro/daml-coder-mcp
Works with VSCode agent mode for seamless AI assistance
Six specialized tools available through MCP
Universal compatibility with other MCP-enabled editors

Model v1.1.3 Enhancements

Based on DAML SDK 2.10.2 LTS (October 2025)
DAML-LF 1.17 support
Canton Protocol Version 7 (Smart Contract Upgrades)
CIP-0056 Token Standard (Approved March 2025)
Enhanced authorization bug detection
Improved two-step transfer pattern generation

API Improvements

Fixed response format to use code field
Added /chat endpoint for conversational features
Better error handling and validation
Improved caching performance

UI/UX Enhancements

All colors use VSCode native theme variables
No hardcoded colors - respects user themes
Better dark/light mode support
Improved webview panels

Installation

Extension Installation

Install the extension from the Visual Studio Code Marketplace
Request an API key from team@tenzro.com
Open Settings > Extensions > DAML Coder
Enter your API key in the configuration

MCP Server Installation (for Chat Features)

For chat and conversational features, install the DAML Coder MCP server:

npm install -g @tenzro/daml-coder-mcp

Then configure VSCode to use the MCP server (see Chat with DAML Coder via MCP Server above).

Configuration

Access settings via: File > Preferences > Settings > Extensions > DAML Coder

damlCoder.apiKey (required)

Your DAML Coder API key
Contact team@tenzro.com to request access

damlCoder.apiUrl

API endpoint URL
Default: https://api.damlcoder.tenzro.network

damlCoder.maxTokens

Maximum tokens to generate per request
Default: 2048
Range: 512-4096
Higher values allow more complete code generation

damlCoder.temperature

Generation temperature controlling output randomness
Default: 0.1
Range: 0.0-1.0
Lower values produce more deterministic, focused output

Commands

All commands are accessible via Command Palette, keyboard shortcuts, or right-click context menu.

Command	Keybinding (Mac)	Keybinding (Win/Linux)	Description
DAML Coder: Generate Code	`Cmd+Shift+G`	`Ctrl+Shift+G`	Generate code at cursor position
DAML Coder: Review Code	`Cmd+Shift+R`	`Ctrl+Shift+R`	Review current file for security
DAML Coder: Explain Selection	`Cmd+Shift+E`	`Ctrl+Shift+E`	Explain selected code
DAML Coder: Debug Error	-	-	Debug error with AI assistance
DAML Coder: Generate Tests	-	-	Generate Daml.Script test cases

For chat features, use VSCode's Chat view with agent mode and the DAML Coder MCP server.

Requirements

Visual Studio Code version 1.99.0 or higher (for MCP support)
Valid DAML Coder API key
Active internet connection
Node.js 18+ (for MCP server)

What Makes DAML Coder Different

Latest DAML Standards (Model v1.1.3)

DAML SDK 2.10.2 LTS (October 2025)
DAML-LF 1.17 (Latest Ledger Format)
Canton Protocol Version 7
CIP-0056 Token Standard (Approved March 2025)
Smart Contract Upgrade patterns

Specialized Training

Fine-tuned on latest DAML 2.x/3.x patterns
Trained on Canton Network production patterns
CIP-0056 institutional token standards
Real-world security patterns from production systems
Deep understanding of DAML-specific best practices

Security-First Approach

Critical: Always uses two-step (propose/accept) patterns for transfers
Automatic authorization bug detection and warnings
Validates all state transitions
Implements multi-party authorization correctly
Prevents common security vulnerabilities
Uses proper signatory/observer patterns

Conversational Intelligence

Natural language understanding of DAML concepts
Context-aware multi-turn conversations through MCP
Explains "why" behind patterns, not just "how"
Understands authorization model deeply
Can debug and explain errors in plain English

Production-Ready Output

Complete contracts with validation logic
Proper signatory and observer separation
Comprehensive error handling
Professional code structure and documentation
No truncated or incomplete generation

Performance and Reliability

Response caching for instant repeated queries
Typical response time of 2-3 seconds
Extended timeout support for complex contracts
Reliable API with high uptime

Error Handling

The extension handles common API issues gracefully:

Invalid API Key: Clear message directing to settings
Rate Limiting: Informative message to retry later
Timeout: Notification if API is slow or unavailable
Network Errors: General error message with details

MCP Server Troubleshooting

If the MCP server is not working in VSCode:

Verify MCP server is installed: npm list -g @tenzro/daml-coder-mcp
Check API key is set: echo $DAML_CODER_API_KEY
Verify MCP configuration in .vscode/mcp.json
Enable agent mode: Settings > chat.agent.enabled > true
Restart VSCode completely (not just reload window)
Check MCP server list: Command Palette > "MCP: List Servers"
View MCP logs in Output panel

Privacy and Data

Code is sent to the DAML Coder API for processing
API requests include your code and prompts
Responses are cached locally for performance
MCP server runs locally and communicates via stdio
Review the privacy policy at tenzro.com

Testing Before Publishing

To test the extension locally before publishing:

Clone/Download the extension source code
Install dependencies: npm install
Compile TypeScript: npm run compile
Press F5 in VSCode to launch Extension Development Host
Test all features:
- Install MCP server: npm install -g @tenzro/daml-coder-mcp
- Configure MCP server in test workspace
- Test Generate, Review, Explain commands
- Verify API calls work correctly
- Test agent mode with MCP tools
Package extension: vsce package
Install locally: code --install-extension daml-coder-1.1.0.vsix

Support

Email: team@tenzro.com
MCP Server: @tenzro/daml-coder-mcp on npm
Issues: Report bugs via GitHub Issues
Documentation: DAML Coder Documentation
API Health: api.damlcoder.tenzro.network/health

@tenzro/daml-coder-mcp - MCP server for VSCode, Claude Desktop, Cursor, and other MCP clients

Changelog

v1.1.0

MCP Server Integration: Chat features now use Model Context Protocol
Universal Compatibility: Works with VSCode, Claude Desktop, Cursor, Zed
Model v1.1.3: Latest DAML 2.10.2 LTS, CIP-0056, Canton Protocol 7
Fixed API: Aligned with correct response format (code field)
UI: All colors now use VSCode native theme variables
Six Specialized Tools: Generate, review, explain, debug, test, chat
Enhanced Knowledge: Smart Contract Upgrades, CIP-0056 patterns
Performance: Better caching and error handling

v1.0.0

Initial release
Generate, Explain, Review, Debug, and Generate Tests commands
Basic DAML code generation
Security pattern support

License

Licensed under the Apache License, Version 2.0. See the LICENSE file for details.

Note: DAML Coder v1.1.0 uses Model v1.1.3, which is based on the latest research from October 2025 including DAML SDK 2.10.2 LTS, Canton Protocol Version 7, and CIP-0056 Token Standard. The extension continues to be refined with the latest DAML patterns and best practices.

For chat and conversational features, install the DAML Coder MCP server: npm install -g @tenzro/daml-coder-mcp

DAML Coder

Tenzro

DAML Coder for Visual Studio Code

Features

Chat with DAML Coder via MCP Server

Generate Code

Review Code

Explain Code

Debug Errors

Generate Tests

What's New in v1.1.0

Installation

Extension Installation

MCP Server Installation (for Chat Features)

Configuration

Commands

Requirements

What Makes DAML Coder Different

Error Handling

MCP Server Troubleshooting

Privacy and Data

Testing Before Publishing

Support

Related Packages

Changelog

v1.1.0

v1.0.0

License