Agentic AI and Copilot Integration

The F5 Distributed Cloud Tools extension embeds an agentic artificial intelligence (AI) engine (xcsh) that integrates directly with Visual Studio Code Chat and the GitHub Copilot ecosystem. The AI assistant can author manifests, troubleshoot connectivity, inspect logs, and navigate the F5 Distributed Cloud API.

Embedded Agent Architecture

The extension manages a dedicated xcsh agent subprocess communicating via a bi-directional Remote Procedure Call (RPC) bridge over standard input/output (stdio):

+-------------------------------------------------------------------------+
|                       Visual Studio Code Editor                         |
|                                                                         |
|  +---------------------------+       +-------------------------------+  |
|  |   @xcsh Chat Participant  |       |     Language Model Tools      |  |
|  |   (/status, /context)     |       | (readFile, getDiagnostics...) |  |
|  +-------------+-------------+       +---------------+---------------+  |
|                |                                     |                  |
|                +------------------+------------------+                  |
|                                   |                                     |
|                                   v                                     |
|  +-------------------------------------------------------------------+  |
|  |                     Xcsh Process Manager                          |  |
|  |            Bi-directional JSON-RPC Bridge (stdio)                 |  |
|  +--------------------------------+----------------------------------+  |
+-----------------------------------|-------------------------------------+
                                    v
+-------------------------------------------------------------------------+
|                  Embedded xcsh Engine / Chat Skills                     |
|  xcsh-resource-management | xcsh-troubleshooting | xcsh-config-authoring |
+-------------------------------------------------------------------------+

@xcsh Copilot Chat Participant

You can invoke the assistant directly inside the Visual Studio Code Chat view (Ctrl+Alt+I / Cmd+Alt+I):

1. Open the Chat view in Visual Studio Code.
2. Enter @xcsh followed by your request or prompt.
3. The @xcsh participant resolves active context, queries the schema engine, and responds with actionable configurations or diagnostic summaries.

Slash Commands

The chat participant provides specialized slash commands for rapid queries:

Command	Description	Example Prompt
/status	Evaluates platform status and active connection health.	@xcsh /status
/context	Summarizes active profile, target tenant, namespace, and credentials.	@xcsh /context
/resources	Queries and lists deployed resources in the active namespace.	@xcsh /resources list load balancers

Semantic Domain Disambiguation

When asking open-ended questions, the participant categorizes requests into specialized domains:

• Networking: Routing rules, DNS load balancing, TCP/UDP proxies, and BGP peering.
• Security: App Firewalls (WAF), Service Policies, Bot Defense, and Rate Limiting.
• Infrastructure: Virtual Sites, Site Registrations, Nodes, and Network Connectors.

Language Model Tools

The extension contributes tools to the Visual Studio Code Language Model API, enabling AI models to autonomously inspect and navigate your workspace:

• xcsh-readFile: Reads the contents of a file in the workspace.
• xcsh-getSelection: Retrieves currently highlighted text in the active editor.
• xcsh-getDiagnostics: Fetches compiler and schema error diagnostics for open manifests.
• xcsh-openFile: Opens a specified file in the editor at an exact line number.

Chat Skills

The extension equips the AI assistant with curated domain knowledge skills:

1. xcsh-resource-management: Guides creation, modification, and deletion of HTTP load balancers, origin pools, health checks, and security policies.
2. xcsh-troubleshooting: Guides diagnostic workflows for site degradation, WAF false-positive blocks, origin pool timeouts, and latency spikes.
3. xcsh-configuration-authoring: Guides JSON/YAML schema construction, field relationships, and oneOf mutual exclusivity resolution.

Agent Panel and Terminal Modes

You can interact with the agent through a dedicated panel or interactive terminal:

• Webview Panel: Open the agent panel via the Secondary Sidebar (Visual Studio Code version 1.106 or later) or Activity Bar using xcsh.xcsh.openPanel.
• Interactive Terminal: Launch an integrated xcsh shell terminal using xcsh.xcsh.openTerminal.

Live Context Injection

When viewing a resource in the Explorer or Describe views, select Add to xcsh chat (xcsh.addToChat) to automatically attach the full live JSON configuration into your chat prompt as context.

Unified Authentication & Rendering

• Unified Context Authentication: The extension shares credentials, context tokens, and certificate stores seamlessly between the embedded terminal CLI and the VS Code extension runtime.
• LaTeX Math Rendering: Mathematical formulations, rate limit equations, and telemetry curves render natively across all xcsh chat responses, tool previews, and webview panels using KaTeX/LaTeX formatting.