DevTools for OneStream (Community)

Disclaimer: This extension is an individual contribution to help OneStream consultants based on personal experience with code optimization. It has no affiliation with OneStream Software LLC.

Development tools for OneStream consultants — code analysis, project management, diagnostics, and AI assistant integration.

Code Quality Studio

Comprehensive static code analyzer with 90+ rule checks for OneStream business rules.

• Analysis Sources: XML/ZIP files, VS Code workspace, or directly from a connected OneStream instance
• Rule Categories: OneStream Platform (OS), Performance (PERF), Security (SEC), Code Quality (QUAL), SQL, Positive Patterns (POS)
• Health Grades: A+ to E scoring with detailed breakdown
• Excel Export: Full findings report with rule catalog
• Comparison View: Before/after analysis to track improvements

Assembly Studio

Create, import, and export OneStream assembly projects:

• New Project: Create VS Code projects for OneStream assemblies (C#/VB.NET)
• Compare Workspace: Compare local files with a connected OneStream instance
• Direct Import: Import assemblies directly from OneStream via REST API
• Export XML: Export to OneStream-compatible format with auto-detection

Diagnostic Studio

Run diagnostic queries against OneStream via REST API:

• Execute Data Management sequences and steps
• View task activity with drill-down to step details
• Browse error logs with filtering and CSV export
• Profiler integration for OneStream 9.1+

Business Rules Editor

Monaco-based editor with OneStream API IntelliSense for loading and editing XML/ZIP business rule exports.

Dimension Builder

Visual editor for dimension metadata with SQLite backend, CSV import/export, and member/relationship management.

Sidebar Panels

AI Assistant Integration

An MCP server is included that gives AI assistants (GitHub Copilot, Claude, Continue.dev) access to OneStream API knowledge and code analysis tools. No configuration needed — it registers automatically when the extension loads.

Installation

Requirements:

• VS Code 1.109+
• .NET 10 Runtime or later (Download)

Feedback & Bug Reports

If you have any feedback, suggestions, or bugs to report, please send an email to onestreamtoolkitvscode@outlook.com.

Author: Marcio Pataca License: See LICENSE file