Clarify Copilot Chat usage for Coding Agent in 'About assigning tasks to Copilot'

[Copilot]

This PR improves the "About assigning tasks to Copilot" documentation to address user confusion about how to engage the Coding Agent through Copilot Chat, particularly distinguishing it from VS Code's agent mode.

Changes made

1. Added links to bullet points for delegating tasks

The two methods for delegating tasks to Copilot now include helpful links:

• "Assign an issue to Copilot" → links to the detailed guide on using Copilot to work on issues
• "Use GitHub Copilot Chat to ask Copilot to create a pull request" → links to the guide on asking Copilot to create PRs from chat

2. Added clarification section about Copilot coding agent vs. VS Code agent mode

Added a new section "Copilot coding agent vs. agent mode in VS Code" that:

• Explains the key distinction between Copilot coding agent and VS Code's agent mode feature
• Clarifies that Copilot coding agent works in a GitHub Actions-powered environment to create pull requests
• Notes that VS Code agent mode is part of Copilot Edits for making autonomous edits in local development
• Links to the agent mode documentation for users who need that feature instead

Background

This addresses feedback from a GitHub Star user who reported confusion about the documentation:

"how to engage the coding agent via GitHub Copilot chat is not clear. I tried to provide prompts in GitHub.com using the repository scope, but no luck. Providing the same prompt in VS Code Chat in Agent mode creates the files using Agent mode and not Coding agent."

The original documentation listed two ways to use the Coding Agent but didn't provide clear guidance on how to actually use the Chat method or distinguish it from similar-sounding features in VS Code.

Fixes #38711.

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💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[Copilot]

Pull Request Overview

This PR clarifies how to engage the Copilot coding agent through GitHub Copilot Chat and distinguishes it from VS Code’s agent mode, while adding contextual links to task delegation methods.

• Added direct links to guides for assigning an issue or asking Copilot to create a PR via chat
• Inserted a new section comparing Copilot coding agent with VS Code’s agent mode

[github-actions]

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Source	Review	Production	What Changed
copilot/using-github-copilot/coding-agent/about-assigning-tasks-to-copilot.md	fpt ghec	fpt ghec

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🤖 This comment is automatically generated.

[hubwriter]

LGTM

[github-actions]

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