docs: update Copilot SDK skill that reorganize language-specific guides for .NET, Go, Python, and TypeScript

docs/README.skills.md

@@ -62,7 +62,7 @@ See [CONTRIBUTING.md](../CONTRIBUTING.md#adding-skills) for guidelines on how to
 | [convert-plaintext-to-md](../skills/convert-plaintext-to-md/SKILL.md) | Convert a text-based document to markdown following instructions from prompt, or if a documented option is passed, follow the instructions for that option. | None |
 | [copilot-cli-quickstart](../skills/copilot-cli-quickstart/SKILL.md) | Use this skill when someone wants to learn GitHub Copilot CLI from scratch. Offers interactive step-by-step tutorials with separate Developer and Non-Developer tracks, plus on-demand Q&A. Just say "start tutorial" or ask a question! Note: This skill targets GitHub Copilot CLI specifically and uses CLI-specific tools (ask_user, sql, fetch_copilot_cli_documentation). | None |
 | [copilot-instructions-blueprint-generator](../skills/copilot-instructions-blueprint-generator/SKILL.md) | Technology-agnostic blueprint generator for creating comprehensive copilot-instructions.md files that guide GitHub Copilot to produce code consistent with project standards, architecture patterns, and exact technology versions by analyzing existing codebase patterns and avoiding assumptions. | None |
-| [copilot-sdk](../skills/copilot-sdk/SKILL.md) | Build agentic applications with GitHub Copilot SDK. Use when embedding AI agents in apps, creating custom tools, implementing streaming responses, managing sessions, connecting to MCP servers, or creating custom agents. Triggers on Copilot SDK, GitHub SDK, agentic app, embed Copilot, programmable agent, MCP server, custom agent. | None |
+| [copilot-sdk](../skills/copilot-sdk/SKILL.md) | Build agentic applications with GitHub Copilot SDK. Use when embedding AI agents in apps, creating custom tools, implementing streaming responses, managing sessions, connecting to MCP servers, or creating custom agents. Triggers on Copilot SDK, GitHub SDK, agentic app, embed Copilot, programmable agent, MCP server, custom agent. | `references/dotnet.md`<br />`references/go.md`<br />`references/python.md`<br />`references/typescript.md` |
 | [copilot-usage-metrics](../skills/copilot-usage-metrics/SKILL.md) | Retrieve and display GitHub Copilot usage metrics for organizations and enterprises using the GitHub CLI and REST API. | `get-enterprise-metrics.sh`<br />`get-enterprise-user-metrics.sh`<br />`get-org-metrics.sh`<br />`get-org-user-metrics.sh` |
 | [cosmosdb-datamodeling](../skills/cosmosdb-datamodeling/SKILL.md) | Step-by-step guide for capturing key application requirements for NoSQL use-case and produce Azure Cosmos DB Data NoSQL Model design using best practices and common patterns, artifacts_produced: "cosmosdb_requirements.md" file and "cosmosdb_data_model.md" file | None |
 | [create-agentsmd](../skills/create-agentsmd/SKILL.md) | Prompt for generating an AGENTS.md file for a repository | None |

plugins/awesome-copilot/.github/plugin/plugin.json

@@ -15,12 +15,12 @@
     "agents"
   ],
   "agents": [
-    "./agents/meta-agentic-project-scaffold.md"
+    "./agents"
   ],
   "skills": [
-    "./skills/suggest-awesome-github-copilot-skills/",
-    "./skills/suggest-awesome-github-copilot-instructions/",
-    "./skills/suggest-awesome-github-copilot-prompts/",
-    "./skills/suggest-awesome-github-copilot-agents/"
+    "./skills/suggest-awesome-github-copilot-skills",
+    "./skills/suggest-awesome-github-copilot-instructions",
+    "./skills/suggest-awesome-github-copilot-prompts",
+    "./skills/suggest-awesome-github-copilot-agents"
   ]
 }

plugins/awesome-copilot/agents/meta-agentic-project-scaffold.md

@@ -0,0 +1,16 @@
+---
+description: "Meta agentic project creation assistant to help users create and manage project workflows effectively."
+name: "Meta Agentic Project Scaffold"
+tools: ["changes", "codebase", "edit/editFiles", "extensions", "fetch", "findTestFiles", "githubRepo", "new", "openSimpleBrowser", "problems", "readCellOutput", "runCommands", "runNotebooks", "runTasks", "runTests", "search", "searchResults", "terminalLastCommand", "terminalSelection", "testFailure", "updateUserPreferences", "usages", "vscodeAPI", "activePullRequest", "copilotCodingAgent"]
+model: "GPT-4.1"
+---
+
+Your sole task is to find and pull relevant prompts, instructions and chatmodes from https://github.com/github/awesome-copilot
+All relevant instructions, prompts and chatmodes that might be able to assist in an app development, provide a list of them with their vscode-insiders install links and explainer what each does and how to use it in our app, build me effective workflows
+
+For each please pull it and place it in the right folder in the project
+Do not do anything else, just pull the files
+At the end of the project, provide a summary of what you have done and how it can be used in the app development process
+Make sure to include the following in your summary: list of workflows which are possible by these prompts, instructions and chatmodes, how they can be used in the app development process, and any additional insights or recommendations for effective project management.
+
+Do not change or summarize any of the tools, copy and place them as is

plugins/awesome-copilot/skills/suggest-awesome-github-copilot-agents/SKILL.md

@@ -0,0 +1,106 @@
+---
+name: suggest-awesome-github-copilot-agents
+description: 'Suggest relevant GitHub Copilot Custom Agents files from the awesome-copilot repository based on current repository context and chat history, avoiding duplicates with existing custom agents in this repository, and identifying outdated agents that need updates.'
+---
+
+# Suggest Awesome GitHub Copilot Custom Agents
+
+Analyze current repository context and suggest relevant Custom Agents files from the [GitHub awesome-copilot repository](https://github.com/github/awesome-copilot/blob/main/docs/README.agents.md) that are not already available in this repository. Custom Agent files are located in the [agents](https://github.com/github/awesome-copilot/tree/main/agents) folder of the awesome-copilot repository.
+
+## Process
+
+1. **Fetch Available Custom Agents**: Extract Custom Agents list and descriptions from [awesome-copilot README.agents.md](https://github.com/github/awesome-copilot/blob/main/docs/README.agents.md). Must use `fetch` tool.
+2. **Scan Local Custom Agents**: Discover existing custom agent files in `.github/agents/` folder
+3. **Extract Descriptions**: Read front matter from local custom agent files to get descriptions
+4. **Fetch Remote Versions**: For each local agent, fetch the corresponding version from awesome-copilot repository using raw GitHub URLs (e.g., `https://raw.githubusercontent.com/github/awesome-copilot/main/agents/<filename>`)
+5. **Compare Versions**: Compare local agent content with remote versions to identify:
+   - Agents that are up-to-date (exact match)
+   - Agents that are outdated (content differs)
+   - Key differences in outdated agents (tools, description, content)
+6. **Analyze Context**: Review chat history, repository files, and current project needs
+7. **Match Relevance**: Compare available custom agents against identified patterns and requirements
+8. **Present Options**: Display relevant custom agents with descriptions, rationale, and availability status including outdated agents
+9. **Validate**: Ensure suggested agents would add value not already covered by existing agents
+10. **Output**: Provide structured table with suggestions, descriptions, and links to both awesome-copilot custom agents and similar local custom agents
+    **AWAIT** user request to proceed with installation or updates of specific custom agents. DO NOT INSTALL OR UPDATE UNLESS DIRECTED TO DO SO.
+11. **Download/Update Assets**: For requested agents, automatically:
+    - Download new agents to `.github/agents/` folder
+    - Update outdated agents by replacing with latest version from awesome-copilot
+    - Do NOT adjust content of the files
+    - Use `#fetch` tool to download assets, but may use `curl` using `#runInTerminal` tool to ensure all content is retrieved
+    - Use `#todos` tool to track progress
+
+## Context Analysis Criteria
+
+🔍 **Repository Patterns**:
+
+- Programming languages used (.cs, .js, .py, etc.)
+- Framework indicators (ASP.NET, React, Azure, etc.)
+- Project types (web apps, APIs, libraries, tools)
+- Documentation needs (README, specs, ADRs)
+
+🗨️ **Chat History Context**:
+
+- Recent discussions and pain points
+- Feature requests or implementation needs
+- Code review patterns
+- Development workflow requirements
+
+## Output Format
+
+Display analysis results in structured table comparing awesome-copilot custom agents with existing repository custom agents:
+
+| Awesome-Copilot Custom Agent                                                                                                                            | Description                                                                                                                                                                | Already Installed | Similar Local Custom Agent         | Suggestion Rationale                                          |
+| ------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------- | ---------------------------------- | ------------------------------------------------------------- |
+| [amplitude-experiment-implementation.agent.md](https://github.com/github/awesome-copilot/blob/main/agents/amplitude-experiment-implementation.agent.md) | This custom agent uses Amplitude's MCP tools to deploy new experiments inside of Amplitude, enabling seamless variant testing capabilities and rollout of product features | ❌ No             | None                               | Would enhance experimentation capabilities within the product |
+| [launchdarkly-flag-cleanup.agent.md](https://github.com/github/awesome-copilot/blob/main/agents/launchdarkly-flag-cleanup.agent.md)                     | Feature flag cleanup agent for LaunchDarkly                                                                                                                                | ✅ Yes            | launchdarkly-flag-cleanup.agent.md | Already covered by existing LaunchDarkly custom agents        |
+| [principal-software-engineer.agent.md](https://github.com/github/awesome-copilot/blob/main/agents/principal-software-engineer.agent.md)                 | Provide principal-level software engineering guidance with focus on engineering excellence, technical leadership, and pragmatic implementation.                            | ⚠️ Outdated       | principal-software-engineer.agent.md | Tools configuration differs: remote uses `'web/fetch'` vs local `'fetch'` - Update recommended |
+
+## Local Agent Discovery Process
+
+1. List all `*.agent.md` files in `.github/agents/` directory
+2. For each discovered file, read front matter to extract `description`
+3. Build comprehensive inventory of existing agents
+4. Use this inventory to avoid suggesting duplicates
+
+## Version Comparison Process
+
+1. For each local agent file, construct the raw GitHub URL to fetch the remote version:
+   - Pattern: `https://raw.githubusercontent.com/github/awesome-copilot/main/agents/<filename>`
+2. Fetch the remote version using the `fetch` tool
+3. Compare entire file content (including front matter, tools array, and body)
+4. Identify specific differences:
+   - **Front matter changes** (description, tools)
+   - **Tools array modifications** (added, removed, or renamed tools)
+   - **Content updates** (instructions, examples, guidelines)
+5. Document key differences for outdated agents
+6. Calculate similarity to determine if update is needed
+
+## Requirements
+
+- Use `githubRepo` tool to get content from awesome-copilot repository agents folder
+- Scan local file system for existing agents in `.github/agents/` directory
+- Read YAML front matter from local agent files to extract descriptions
+- Compare local agents with remote versions to detect outdated agents
+- Compare against existing agents in this repository to avoid duplicates
+- Focus on gaps in current agent library coverage
+- Validate that suggested agents align with repository's purpose and standards
+- Provide clear rationale for each suggestion
+- Include links to both awesome-copilot agents and similar local agents
+- Clearly identify outdated agents with specific differences noted
+- Don't provide any additional information or context beyond the table and the analysis
+
+## Icons Reference
+
+- ✅ Already installed and up-to-date
+- ⚠️ Installed but outdated (update available)
+- ❌ Not installed in repo
+
+## Update Handling
+
+When outdated agents are identified:
+1. Include them in the output table with ⚠️ status
+2. Document specific differences in the "Suggestion Rationale" column
+3. Provide recommendation to update with key changes noted
+4. When user requests update, replace entire local file with remote version
+5. Preserve file location in `.github/agents/` directory