Deetoo for Copilot Chat

Deetoo brings Nasdaq-provided AI models into GitHub Copilot Chat in VS Code.

It is built for teams that want to stay inside the standard Copilot Chat experience while using an approved provider in the editor.

Quick start

1. Install GitHub Copilot Chat in VS Code.
2. Install Deetoo from the Marketplace.
3. Create or update an OAuth2 client in the matching GenAI token page for your environment. In dev, include the Gateway Access scope. In prod, make sure the client has been provisioned for Bedrock gateway access.
4. Run Deetoo: Set Gateway Credentials from the Command Palette (Cmd/Ctrl+Shift+P).
5. Enter that client ID and client secret when prompted.
6. Open Copilot Chat and choose a Deetoo model from the model picker.

Why Deetoo

• Use an approved provider without leaving VS Code
• Keep the familiar Copilot Chat workflow, UI, and history
• Give teams a simple way to access Nasdaq-supported AI models in the editor

What you can do

• Select Deetoo models from the Copilot Chat model picker
• Chat in the same VS Code interface your team already uses
• Manage credentials directly from the Command Palette

Commands

Notes

• Deetoo works alongside GitHub Copilot Chat and appears in the standard model picker.
• If your team has onboarding or access requirements, follow your internal setup guidance.
• PROD offers two model sources: bedrock (default, 5 Anthropic Claude models, SigV4, with quota display) and openai-proxy (30 models including Amazon Nova, Anthropic Claude, Google Gemini, and open-weight models — NVIDIA Nemotron, OpenAI GPT-OSS, Google Gemma, xAI Grok). Switch with the Deetoo: Use Nasdaq OpenAI Proxy Models (all models, incl. OSS) / Deetoo: Use Bedrock Gateway Models commands.
• Tool calling works reliably on Claude, Nova, and Gemini models through both providers. openai/gpt-oss-* and nvidia/nemotron-* models can emit malformed tool calls (unknown_tool name, empty arguments) through the openai-proxy path — a known upstream limitation, not a Deetoo bug. Deetoo now skips malformed tool calls, keeps any streamed text, retries once if the turn was empty because of a malformed tool call, and then shows guidance instead of failing the request. Set deetoo.toolMode to off if you want to use OSS models in chat-only mode.

Troubleshooting

• If Deetoo does not appear after install, reload VS Code with Developer: Reload Window.
• If no models appear or requests fail with gateway-access, make sure the OAuth2 client used by Deetoo has Bedrock gateway access. In dev that means selecting the Gateway Access scope; in prod that access appears to be provisioned on the client.

Install

• Marketplace page: https://marketplace.visualstudio.com/items?itemName=Nasdaq.deetoo
• Add to VS Code: vscode:extension/Nasdaq.deetoo