Improve agent workflow documentation

[Copilot]

Improves agent/skill documentation for automated PR reviews and UI test authoring.

Agent Workflow Documentation (Updated)

.github/agents/pr.md

• Clarify state file commit rule: state file should always be included when committing changes

.github/instructions/uitests.instructions.md

• Add rule prohibiting inline #if platform directives in test methods
• Require platform-specific logic to be in extension methods for better readability:

// ❌ Hard to read
[Test]
public void MyTest()
{
#if ANDROID
    App.TapCoordinates(100, 200);
#else
    App.Tap("MyElement");
#endif
}

// ✅ Clean and readable
[Test]
public void MyTest()
{
    App.TapElementCrossPlatform("MyElement");
}

.github/skills/try-fix/SKILL.md

• Add "Model" column to Fix Candidates table format to track which AI model generated each fix attempt

Summary

These changes provide clearer guidelines for automated PR reviews and UI test authoring.

Original prompt

Can you create a PR with the changes from the ".github" folder on #33406 and #31487

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

[PureWeen]

@copilot update the title and description of this PR please to refelct the chagnes correctly

[Copilot]

@copilot update the title and description of this PR please to refelct the chagnes correctly

Updated the PR title and description to clarify that this adds agent session state files and improves workflow documentation, rather than consolidating code changes from those PRs. The state files track PR review workflow progress for automated reviews.

[PureWeen]

@copilot remove the files added to agent-pr-session

[Copilot]

Pull request overview

This PR adds agent workflow state tracking files and improves documentation for agent and skill workflows in the .NET MAUI repository. The changes enhance automated PR review capabilities by tracking workflow progress and providing clearer guidelines for UI test authoring and agent behavior.

Key changes:

• Added two agent session state files that document comprehensive PR review workflows for issues #31445 and #33356
• Clarified that state files should always be included when committing changes
• Introduced a rule prohibiting inline #if platform directives in UI test methods, requiring extension methods instead for better readability
• Added "Model" column to Fix Candidates tables throughout try-fix skill documentation to track which AI model generated each fix attempt

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
.github/agent-pr-session/pr-31487.md	Complete PR review state file for Android duplicate title icon fix, documenting all 5 phases including test verification, fix candidates from multiple models, and final approval recommendation
.github/agent-pr-session/pr-33406.md	PR review state file for iOS Shell SearchHandler navigation fix, currently in progress with Pre-Flight phase complete and subsequent phases pending
.github/agents/pr.md	Clarified that state files should always be included when committing changes to the agent-pr-session directory
.github/instructions/uitests.instructions.md	Added rule requiring platform-specific test logic to be hidden in extension methods rather than using inline #if directives, with clear examples showing the anti-pattern and correct approach
.github/skills/try-fix/SKILL.md	Consistently added "Model" column across all Fix Candidates table examples and instructions to track which AI model (e.g., Claude 3.5 Sonnet, GPT 5.2, Gemini 2.0 Flash) generated each fix attempt

[Copilot]

@copilot remove the files added to agent-pr-session

Removed both agent session state files from the PR in commits ee6627c and dcb5427. The PR now only contains documentation improvements to agent/skill files.