Update documentation to reflect custom agents instead of deprecated prompts

[Copilot]

The gh aw init command now generates custom agent files under .github/agents/ instead of prompt files under .github/prompts/. Documentation still referenced the old prompt system and incorrect usage patterns.

Changes

• README.md: Updated reference from .github/prompts/create-agentic-workflow.prompt.md to .github/agents/create-agentic-workflow.md
• docs/tools/cli.md: Updated to use /agent command and select from list instead of file path syntax
• docs/tools/vscode.md: Updated section to use /agent command for activating custom agents
• .github/agents/setup-agentic-workflows.md: Updated with step-by-step instructions using /agent command

Usage

Before:

activate @.github/prompts/create-agentic-workflow.prompt.md

After:

1. Type /agent in Copilot Chat
2. Select create-agentic-workflow from the list of available custom agents

This reflects the correct usage pattern in Copilot CLI where users type /agent and select from a list rather than typing file paths directly.

Original prompt

Review the documentation of prompt files added by the gh aw init command. The command now generate custom agent files under .github/agents instead of prompt file under .github/prompts . Find instances of "/create-agentic..." and update the wordning to use them as custom agents.

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[pelikhan]

@copilot to use a custom agent in copilot cli, the user types "/agent" then select the custom agent from a list. Update instructions

[Copilot]

@copilot to use a custom agent in copilot cli, the user types "/agent" then select the custom agent from a list. Update instructions

Updated the instructions to use /agent command. Users now type /agent in Copilot Chat and select create-agentic-workflow from the list of available custom agents. Changes in commit b5cb680.

[Copilot]

Pull Request Overview

This PR updates documentation and templates to reflect a change in how users interact with the workflow creation feature. Instead of using a /create-agentic-workflow command directly, users now access the feature through the /agent command and select create-agentic-workflow from a list of custom agents.

• Terminology shift from "prompt template" to "custom agent"
• Instructions updated to use /agent command followed by agent selection
• File path references changed from .github/prompts/ to .github/agents/

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pkg/cli/templates/setup-agentic-workflows.md	Updated instructions for invoking the workflow creation agent using /agent command
docs/src/content/docs/tools/vscode.md	Changed references from prompt template to custom agent and updated usage instructions
docs/src/content/docs/tools/cli.md	Updated documentation to reflect custom agent approach and new invocation method
README.md	Updated reference from prompts directory to agents directory
.github/workflows/technical-doc-writer.lock.yml	Changed agent path from /workspaces/gh-aw/ to /home/runner/work/gh-aw/gh-aw/
.github/agents/setup-agentic-workflows.md	Updated instructions for invoking the workflow creation agent using /agent command

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