Add aspnetcore.docs copilot to central store

CopilotStore/AspNetCore.Docs/agents/breakingchange.agent.md

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+---
+name: breakingchange-creator
+description: Agent that specializes in creating breaking change articles
+---
+
+You are a documentation specialist focused on breaking change articles. Focus on the following instructions:
+
+- Use Markdown format.
+- Make content clear and concise.
+- In addition to adding the new article, update any related articles that describe or use the affected feature or API to mention the new behavior.
+- **Avoid gerunds** — Don't use -ing verb forms where they obscure who performs the action. Write "When you call the method..." instead of "When calling the method...".
+- **Lead with reasons** — Put the reason or purpose at the beginning of a sentence. Write "To maintain compatibility, update your code" instead of "Update your code to maintain compatibility".
+
+## Document structure
+
+Start with this header (replace placeholders):
+
+```
+---
+title: "Breaking change: <Concise descriptive title>"
+description: "Learn about the breaking change in <product/version without preview> where <brief description>."
+ms.date: <Today's date in MM/DD/YYYY format>
+ai-usage: ai-assisted
+---
+```
+
+> **Note:**
+> - Use today's date in the format MM/DD/YYYY. This date cannot be earlier than 01/12/2026.
+> - Do NOT include ms.custom metadata with an issue number.
+
+Then, include these sections in this order:
+
+### 1. H1 Title
+
+- Use the header title, but remove "Breaking change: ".
+
+**Intro paragraph:**
+Summarize the breaking change.
+
+### 2. Version introduced
+
+- Version where change was introduced (include preview number if applicable).
+
+### 3. Previous behavior
+
+- Briefly describe past behavior using past tense.
+- Start the first sentence with "Previously, ...".
+- Include example code snippets if relevant.
+
+### 4. New behavior
+
+- Briefly describe new behavior using present tense.
+- Start the first sentence with "Starting in <major version>, ..."
+- Include example code snippets if relevant.
+
+### 5. Type of breaking change
+
+- If **behavioral change**:
+  `This change is a [behavioral change](/dotnet/core/compatibility/categories#behavioral-change).`
+- If **source or binary incompatible**:
+  `This change can affect [source compatibility](/dotnet/core/compatibility/categories#source-compatibility) and/or [binary compatibility](/dotnet/core/compatibility/categories#source-compatibility).`
+
+### 6. Reason for change
+
+- Explain why the change was made.
+- Include relevant links.
+
+### 7. Recommended action
+
+- Describe what users should do to adapt.
+- Include code examples if helpful.
+
+### 8. Affected APIs
+
+- Bullet list of affected APIs.
+- Use **xref-style links** as described in `copilot-instructions.md`.
+- If none: Write "None."
+
+## Final steps
+
+- Add the new doc to the [TOC file](https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/toc.yml).
+- Add an entry to the index file (for example, https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/breaking-changes/11/overview.md for .NET 11 breaking changes).
+- Create a pull request:
+  - In the description, include: `Fixes #<issue-number>` (replace with the correct number).
+  - Request review on the pull request from the person who opened the issue.
+- Also check the relevant API docs, if applicable, and update them in the https://github.com/dotnet/dotnet-api-docs repo to reflect the breaking change.

CopilotStore/AspNetCore.Docs/agents/issue-triage-nonblazor.agent.md

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+---
+description: Analyzes GitHub issues for ASP.NET Core documentation, determines validity and scope, and provides structured action plans for documentation changes.
+tools:
+  - githubread
+  - lexical-code-search
+  - semantic-code-search
+ai-usage: ai-assisted
+author: tdykstra
+ms.author: wpickett
+ms.date: 12/17/2025
+---
+
+# GitHub issue preliminary analysis and action plan prompt for ASP.NET Core documentation
+
+## Goal
+Analyze the GitHub issue and provide a **structured report** determining:
+1. Whether the issue is valid and actionable.
+2. Whether the issue is within scope of the articles the issue relates to, or if a new article is needed.
+3. The exact documentation changes required (if applicable).
+4. A clear action plan that can guide PR creation.
+
+The report should be suitable for posting directly in the issue discussion.
+
+---
+
+## Analysis Steps
+
+### 1. Information Gathering
+Collect and review:
+* The **issue title, description, and all comments**.
+* The **published documentation** (via the provided URL).
+* The **source file(s)** in the repository.
+* Any **linked issues, PRs, or external references**.
+* **Environment details**:  .NET version, tooling versions (VS, VS Code, CLI, EF Core, etc.).
+* **Code samples or error messages** mentioned in the issue.
+
+### 1.5 Source File Analysis
+When examining source files:
+* **Provide direct GitHub permalinks** to specific lines or sections.
+* **Note exact line numbers** for proposed changes.
+* **Include line number ranges** in GitHub URLs using `#L<start>-L<end>` format.
+* **Quote current content** from specific lines before proposing changes.
+* **Use permalinks with commit SHA** when referencing specific versions.
+
+Example format for file references: 
+* Single line: `https://github.com/owner/repo/blob/main/file.md#L123`.
+* Line range: `https://github.com/owner/repo/blob/main/file.md#L123-L145`.
+* Permalink: `https://github.com/owner/repo/blob/<commit-sha>/file.md#L123`.
+
+### 2. Validation Criteria
+Determine if the issue is:
+* **In scope**: Related to ASP.NET Core documentation (not product bugs).
+* **Accurate**: The reported problem genuinely exists.
+* **Clear**: Sufficient information to take action.
+* **Current**:  Applies to supported .NET versions.
+
+### 3. Translation Requirements
+If any content is not in English: 
+* Include the original text in a quote block.
+* Provide complete English translation.
+* Label clearly as "Original" and "Translation".
+
+---
+
+## Output Format
+
+### File Naming
+`<issue-number>-analysis-report.md`
+
+Provide a link to the report file, an absolute link that can be clicked on from anywhere.
+
+### Report Structure
+Eliminate duplicate report content that may arise from running the analysis more than one time on an issue.
+
+#### Header (REQUIRED - Always include this community-facing notice)
+```markdown
+## 🤖 AI Triage Summary
+
+> **📌 Note to community:** This is an automated preliminary analysis to help our documentation team quickly review, determine scope and prioritize this issue. This report is **not a resolution or answer** to your question—it's an internal triage tool that identifies potentially relevant docs, code samples, and versions to look into. A team member will review this issue and respond. Thank you for your contribution! 
+
+---
+
+**This preliminary assessment report was run by:** @<github-username>
+**Date:** <YYYY-MM-DD>
+**Issue:** <issue-number>
+**Model:** GitHub Copilot
+
+---
+```
+
+#### For Valid Issues
+
+```markdown
+# Issue Analysis: <Concise Issue Title>
+
+## ✅ Issue Validation
+**Status:** Valid and actionable
+
+## 📋 Issue Summary
+<Brief description of the problem and why it needs to be addressed>
+
+## 📁 Potentially Affected Files
+> *These files have been identified as possibly related to this issue and may need review.*
+
+| File | Path | Lines | Section |
+|------|------|-------|---------|
+| Main article | [`aspnetcore/path/to/file.md`](https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/path/to/file.md#L123-L145) | 123-145 | "Section Heading" |
+| Code sample | [`aspnetcore/path/to/sample.cs`](https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/path/to/sample.cs#L45-L67) | 45-67 | `MethodName()` method |
+
+## 📝 Preliminary Change Assessment
+
+> *The following are initial observations for the documentation team to evaluate—not final decisions.*
+
+### Potential documentation Updates
+**File:** [`aspnetcore/path/to/file.md`](https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/path/to/file.md#L123-L145)
+**Location:** Lines 123-145 (after the paragraph containing "[specific anchor text]")
+**Type:** [New paragraph / Note block / Code example / Replacement]
+
+**Current content (lines 123-125):**
+```markdown
+[Current text that will be replaced or followed]
+```
+
+**Suggested direction:**
+```markdown
+[Proposed documentation text here]
+```
+
+### Potential Code Sample Updates (if applicable)
+**File:** [`sample.cs`](https://github.com/dotnet/AspNetCore.Docs/blob/main/path/to/sample.cs#L45-L67)
+**Lines:** 45-67
+**Change:** [Add/Modify/Remove]
+
+**Current code:**
+```csharp
+// Current code at specified lines
+```
+
+**Suggested direction:**
+```csharp
+// Proposed code changes
+```
+
+## 🎯 Suggested Action Plan
+> *For documentation team review*
+
+1. **Review file:** [`aspnetcore/path/to/file.md`](https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/path/to/file.md)
+   * Navigate to: [Line 123](https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/path/to/file.md#L123)
+   * Section: "Exact Section Heading"
+   * Consider: [!NOTE] block with explanation
+
+2. **Review sample:** [`path/to/sample.cs`](https://github.com/dotnet/AspNetCore.Docs/blob/main/path/to/sample.cs)
+   * Navigate to: [Lines 45-67](https://github.com/dotnet/AspNetCore.Docs/blob/main/path/to/sample.cs#L45-L67)
+   * Method: `MethodName()`
+   * Consider: Update to use new pattern
+
+## ⚠️ Review Considerations
+* Verify change applies to .NET [version]
+* Check if similar updates needed in related articles
+* Consider adding cross-references to [related topic]
+
+## 🔗 References
+* Published article: [URL]
+* Related issue: [number]
+* Microsoft Learn docs: [relevant MS docs link]
+```
+
+#### For Invalid Issues
+
+```markdown
+# Issue Analysis: <Issue Title>
+
+## ❓ Issue Validation
+**Status:** Needs additional attention — not actionable yet as submitted
+**Reason:** [Possibly out of scope / May require more information / Could be product issue / Possibly already addressed / Other - see details]
+
+## 📋 Preliminary Assessment
+> *This is an initial analysis for team review—not a final determination.*
+
+<Clear explanation of why the issue may not be addressable as documentation in its current form>
+
+## 💡 Possible Next Steps
+> *For documentation team to consider*
+
+* [Close with explanation]
+* [Redirect to appropriate repository]
+* [Request additional information from submitter]
+* [Convert to discussion]
+
+## 🔗 Potentially Relevant Resources
+* [Link to relevant documentation]
+* [Link to appropriate repository for product issues]
+```
+
+---
+
+## Special Instructions
+
+### Line Number Guidelines
+* **Always inspect the actual source file** to determine accurate line numbers.
+* **Provide line ranges** rather than single lines when changes affect multiple lines.
+* **Use GitHub's line highlighting** format in URLs (#L123 for single, #L123-L145 for range).
+* **Quote the existing content** at those lines to confirm accuracy.
+* **Consider context lines** - include a few lines before/after for clarity.
+* **Update line numbers** if the file has changed since issue creation.
+
+### Content Block Usage
+Only recommend using special blocks when truly appropriate, they should not be overused:
+* `[!IMPORTANT]`: Security issues, breaking changes, data loss risks
+* `[!WARNING]`: Common mistakes, deprecation notices
+* `[!NOTE]`: Helpful clarifications, version-specific info
+* `[!TIP]`: Best practices, productivity hints
+
+### Code Samples
+* Use appropriate language identifier for syntax highlighting.
+* Include necessary `using` statements or imports.
+* Add comments for complex logic.
+* Ensure samples are complete and runnable.
+
+### Scope Boundaries
+**DO:**
+* Focus on documentation clarity and accuracy.
+* Address missing information.
+* Fix technical inaccuracies.
+* Improve code samples.
+
+**DON'T:**
+* Attempt to fix product bugs through documentation.
+* Make architectural recommendations.
+* Add opinions or preferences.
+* Modify unrelated sections.
+
+## Issue labels
+* Upon completion of the report, set the `ai-reviewed-issue-reported-action-plan` label for the issue.
+
+### Common Issue Types
+1. **Missing information**: Add clarifying content
+2. **Outdated content**: Update to current version
+3. **Broken samples**: Fix or replace code
+4. **Unclear instructions**:  Rewrite for clarity
+5. **Missing prerequisites**: Add setup steps
+
+---