Me: https://www.linkedin.com/in/sukumar-p/
GitHub Copilot Copilot flow: Installation - https://docs.github.com/en/copilot/how-tos/set-up/install-copilot-extension Context gathering Proxy service - https://devblogs.microsoft.com/all-things-azure/github-copilot-chat-explained-the-life-of-a-prompt/ https://iitsnl.com/blog/understanding-github-copilots-internal-architecture/ Model selection Pre and Post model filters Duplicate code detection/filtering - https://github.com/orgs/community/discussions/159805 Chat Experience: Slash commands: /delegate, /search, /explain, /fix, /new, /newNotebook, /setupTests, /tests, /savePrompt, /clear etc.. https://docs.github.com/en/copilot/reference/chat-cheat-sheet?tool=vscode#slash-commands-1 Context Variables: #{file}, #terminalLastCommand, #terminalSelection, #problems, #openSimpleBrowser, #changes, #githubRepo, #codebase, #fetch etc.. https://docs.github.com/en/copilot/reference/chat-cheat-sheet?tool=vscode#chat-variables Chat Participants: @cli, @cloud, @vscode, @workspace etc.. https://docs.github.com/en/copilot/reference/chat-cheat-sheet?tool=vscode#chat-participants Adding context Explaining commit from Source Control tab’s graph Voice chat - https://marketplace.visualstudio.com/items?itemName=ms-vscode.vscode-speech Code completions: Purpose - https://code.visualstudio.com/docs/copilot/ai-powered-suggestions Enable/Disable for all/specific files in settings and from Copilot in status bar - https://code.visualstudio.com/docs/copilot/ai-powered-suggestions#_enable-or-disable-inline-suggestions Snooze option Completions model - https://code.visualstudio.com/docs/copilot/ai-powered-suggestions#_change-the-ai-model-for-suggestions Next Edit Suggestion: What, Why, How https://code.visualstudio.com/docs/copilot/ai-powered-suggestions#_next-edit-suggestions Inline chat: Purpose Context and Model Selections Inline chat in editor - https://code.visualstudio.com/docs/copilot/chat/inline-chat#_use-editor-inline-chat Inline chat in terminal - https://code.visualstudio.com/docs/copilot/chat/inline-chat#_use-terminal-inline-chat Model selection: Standard and Premium models Models comparison - https://docs.github.com/en/copilot/reference/ai-models/model-comparison Premium requests, Model multiplier, quota for Business/Enterprise users, Additional usage - https://docs.github.com/en/copilot/concepts/billing/copilot-requests Custom instructions: Purpose Use cases with copilot-instructions.md file - https://code.visualstudio.com/docs/copilot/customization/custom-instructions#_use-a-githubcopilotinstructionsmd-file Enable custom instructions file in settings Chat debug view with .copilotmd files - https://code.visualstudio.com/docs/copilot/chat/chat-debug-view Generating chat instructions for existing repo - https://code.visualstudio.com/docs/copilot/customization/custom-instructions#_generate-an-instructions-file-for-your-workspace Custom instructions for - Code Generation, Commit Message Generation, Pull Request Description Generation, Test Generation. AGENTS.md - https://agents.md/ Instructions.md files: Compare with custom instructions Sample instructions files with meta tags Adding new instructions directory in settings https://code.visualstudio.com/docs/copilot/customization/custom-instructions#_use-instructionsmd-files Reusable prompts: Purpose, locations Calling from copilot chat and editor https://code.visualstudio.com/docs/copilot/customization/prompt-files Spec story extension - https://marketplace.visualstudio.com/items?itemName=SpecStory.specstory-vscode Chat modes or Agents: Built-in agents - https://code.visualstudio.com/docs/copilot/chat/copilot-chat#_choose-an-agent Ask vs Edit vs Agent vs Plan modes Custom agents - https://code.visualstudio.com/docs/copilot/customization/custom-agents#_what-are-custom-agents Agent file options - argument-hint, tools, model, infer, target, mcp-servers, handoffs - https://code.visualstudio.com/docs/copilot/customization/custom-agents#_custom-agent-file-structure Custom agents at Org and Enterprise level - https://docs.github.com/en/copilot/how-tos/use-copilot-agents/coding-agent/create-custom-agents https://code.visualstudio.com/docs/copilot/agents/overview Sub agents - https://code.visualstudio.com/docs/copilot/agents/subagents https://www.linkedin.com/feed/update/urn:li:activity:7436079249784057856/ Copilot in CLI: Installation Usage with / commands, ! shell commands, @ file references. Background agents with @cli command and “New chat” button in VS Code https://docs.github.com/en/copilot/concepts/agents/copilot-cli/about-copilot-cli Vision input: Enabling it - https://docs.github.com/en/copilot/how-tos/chat-with-copilot/chat-in-ide#using-images-in-copilot-chat Copilot on github.com: Delegating tasks from VS Code, CLI, github.com Premium requests usage for coding agent task Triggering coding agent from github.com, follow up tasks - https://docs.github.com/en/copilot/how-tos/use-copilot-agents/manage-agents Agent selection, Model selection. Working with GitHub issues using copilot - https://docs.github.com/en/copilot/how-tos/use-copilot-for-common-tasks/use-copilot-to-create-or-update-issues Pull request summary - https://docs.github.com/en/copilot/how-tos/use-copilot-for-common-tasks/create-a-pr-summary PR review using Copilot and PRU, Agents tab in GitHub repository. Customizing coding agent environment - https://docs.github.com/en/copilot/how-tos/use-copilot-agents/coding-agent/customize-the-agent-environment
MCP: Purpose Servers - local and remote - https://modelcontextprotocol.io/docs/learn/server-concepts Tools - https://modelcontextprotocol.io/docs/learn/server-concepts#tools Resources - https://modelcontextprotocol.io/docs/learn/server-concepts#resources Prompts - https://modelcontextprotocol.io/docs/learn/server-concepts#prompts Sampling - https://modelcontextprotocol.io/specification/latest/client/sampling Elicitation - https://modelcontextprotocol.io/specification/latest/client/elicitation mcp.json – VS Code - https://code.visualstudio.com/docs/copilot/customization/mcp-servers MCP in Coding agent - https://docs.github.com/en/copilot/how-tos/use-copilot-agents/coding-agent/extend-coding-agent-with-mcp GitHub MCP server - https://github.com/github/github-mcp-server With Slack - https://docs.github.com/en/copilot/how-tos/use-copilot-agents/coding-agent/integrate-coding-agent-with-slack Servers - https://github.com/modelcontextprotocol/servers GitHub MCP Marketplace - https://github.com/mcp Hooks: https://docs.github.com/en/copilot/concepts/agents/coding-agent/about-hooks#about-hooks https://docs.github.com/en/copilot/how-tos/use-copilot-agents/coding-agent/use-hooks https://code.visualstudio.com/docs/copilot/customization/hooks Copilot spaces: Purpose - https://docs.github.com/en/copilot/concepts/context/spaces Creation and Usage - https://github.com/copilot/spaces Copilot Spark: Purpose - https://docs.github.com/en/copilot/concepts/spark https://github.com/spark Toolset: Purpose How to create and use them - https://code.visualstudio.com/docs/copilot/agents/agent-tools#_group-tools-with-tool-sets Skills: https://code.claude.com/docs/en/skills https://youtu.be/JepVi1tBNEE https://agentskills.io/home https://microsoft.github.io/skills/ https://platform.claude.com/docs/en/agents-and-tools/agent-skills/overview https://code.visualstudio.com/docs/copilot/customization/agent-skills
Hugging face extension in VS Code: https://marketplace.visualstudio.com/items?itemName=HuggingFace.huggingface-vscode-chat Spec-driven development: Spec-kit - https://github.com/github/spec-kit OpenSpec - https://github.com/Fission-AI/OpenSpec BMAD - https://github.com/bmad-code-org/BMAD-METHOD GSD - https://github.com/gsd-build/get-shit-done Copilot-sdk: https://github.com/github/copilot-sdk Content-exclusion: https://docs.github.com/en/copilot/how-tos/configure-content-exclusion/exclude-content-from-copilot Other resources: Copilot Autofix - https://docs.github.com/en/code-security/responsible-use/responsible-use-autofix-code-scanning#about-copilot-autofix-for-code-scanning https://github.com/msitarzewski/agency-agents Awesome copilot repo - https://github.com/github/awesome-copilot Awesome copilot extension - https://marketplace.visualstudio.com/items?itemName=TimHeuer.awesome-copilot Prompt Boost - https://marketplace.visualstudio.com/items?itemName=chrisdias.promptboost Ollama - https://docs.ollama.com/integrations/vscode Copilot feature matrix - https://copilot-feature-matrix.com/ https://docs.github.com/en/copilot/reference/copilot-feature-matrix Copilot changelog - https://github.blog/changelog/label/copilot/ Sidecar - https://github.com/marcus/sidecar https://changeblogger.org/blog/save-copilot-premium-requests-vs-code https://dganev.com/posts/2026-01-24-bypassing-copilot-requests/ https://www.promptingguide.ai/techniques Orchestration - https://blog.iamarinroy.com/2026/02/orchestrating-github-copilot-custom.html https://gist.github.com/burkeholland/0e68481f96e94bbb98134fa6efd00436 https://youtu.be/-BhfcPseWFQ GHCP Customization Architecture - https://gist.github.com/LawrenceHwang/6194421c3bb4208fff84452b403e191a https://blog.cloud-eng.nl/2025/12/22/copilot-customization/ Copilot chronicle - https://www.linkedin.com/posts/evan-boyle-107a1445_introducing-copilot-chronicle-all-of-your-activity-7430292207200456704-ykXM/ Squad - https://github.com/bradygaster/squad Agentic workflows - https://github.github.io/gh-aw/ https://josh-ops.com/posts/github-agentic-workflows/ https://www.philschmid.de/ Copilot Token Tracker - https://marketplace.visualstudio.com/items?itemName=RobBos.copilot-token-tracker