---
source_keys:
  - context7-websites-code-claude
  - claude-code-plugins-docs
  - claude-code-subagents-docs
  - context7-github-en-copilot
  - github-cli-plugin-reference
  - github-plugins-creating
  - github-plugins-finding-installing
  - github-custom-agents-configuration
  - github-plugins-marketplace
  - github-sdk-custom-agents
  - github-changelog-copilot-extensions-ga
  - github-changelog-copilot-extensions-sunset
  - github-docs-copilot-extensions-skillsets
  - github-docs-copilot-extensions-building
  - vscode-chat-participant-api
  - github-marketplace-copilot-extensions
  - github-docs-marketplace-listing-requirements
---

# Sources

## context7-websites-code-claude

- **URL:** context7:/websites/code_claude
- **Research doc:** plugins/kyberforge/docs/research/docs/claude-code-plugins/sources.md
- **Description:** Official Claude Code documentation site indexed by Context7 — plugin manifest schema, marketplace JSON format, `claude plugin` CLI commands, validation, tagging
- **Contributing files:** SKILL.md, references/manifest-fields.md
- **Status:** `extracted`

## claude-code-plugins-docs

- **URL:** https://code.claude.com/docs/en/plugins
- **Research doc:** plugins/kyberforge/docs/research/docs/claude-code-plugins/sources.md
- **Description:** Official Claude Code plugin authoring guide — plugin structure, CC manifest fields (`displayName`, `author.url`, `version`, `outputStyles`, `experimental`), marketplace submission, `claude plugin tag`
- **Contributing files:** SKILL.md, references/manifest-fields.md
- **Status:** `extracted`

## github-cli-plugin-reference

- **URL:** https://docs.github.com/en/copilot/reference/copilot-cli-reference/cli-plugin-reference
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** Full Copilot CLI plugin reference — `plugin.json` schema (all fields, types, constraints), marketplace.json schema, CLI commands, manifest lookup order
- **Contributing files:** SKILL.md, references/manifest-fields.md
- **Status:** `extracted`

## github-plugins-creating

- **URL:** https://docs.github.com/en/copilot/how-tos/copilot-cli/customize-copilot/plugins-creating
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** How-to for creating Copilot CLI plugins — plugin structure, Copilot manifest fields, development lifecycle, hooks format, MCP config
- **Contributing files:** SKILL.md
- **Status:** `extracted`

## github-plugins-finding-installing

- **URL:** https://docs.github.com/en/copilot/how-tos/copilot-cli/customize-copilot/plugins-finding-and-installing
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** Finding and installing Copilot CLI plugins — install spec formats, marketplace registration, `copilot plugin` CLI commands
- **Contributing files:** SKILL.md
- **Status:** `extracted`

## claude-code-subagents-docs

- **URL:** https://code.claude.com/docs/en/sub-agents
- **Research doc:** plugins/kyberforge/docs/research/docs/claude-code-plugins/sources.md
- **Description:** Official Claude Code subagent reference — definition format, all frontmatter fields, scope priority, built-in agents, CLI flags, environment variables, known limitations
- **Contributing files:** SKILL.md
- **Status:** `extracted`

## context7-github-en-copilot

- **URL:** context7:/websites/github_en_copilot
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** Official GitHub Copilot documentation indexed by Context7; covers CLI plugins, custom agents, SDK, and marketplace
- **Contributing files:** SKILL.md, references/manifest-fields.md
- **Status:** `extracted`

## github-custom-agents-configuration

- **URL:** https://docs.github.com/en/copilot/reference/custom-agents-configuration
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** Reference for cloud and IDE custom agent definition format — frontmatter fields, tool aliases, MCP server config, secrets interpolation, scoping hierarchy
- **Contributing files:** (none)
- **Status:** `extracted`

## github-plugins-marketplace

- **URL:** https://docs.github.com/en/copilot/how-tos/copilot-cli/customize-copilot/plugins-marketplace
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** How-to for creating and publishing a plugin marketplace — marketplace.json structure, hosting options, registration commands
- **Contributing files:** (none)
- **Status:** `extracted`

## github-sdk-custom-agents

- **URL:** https://docs.github.com/en/copilot/how-tos/copilot-sdk/features/custom-agents
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** SDK custom agent API — CustomAgentConfig fields in all five languages, session config, sub-agent lifecycle events, tool scoping, permission handling
- **Contributing files:** (none)
- **Status:** `extracted`

## github-changelog-copilot-extensions-ga

- **URL:** https://github.blog/changelog/2025-02-19-announcing-the-general-availability-of-github-copilot-extensions/
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** Announcement of GitHub Copilot Extensions general availability (February 2025) — OIDC auth, all license tiers, VS Code/Visual Studio/JetBrains/GitHub.com support
- **Contributing files:** (none)
- **Status:** `referenced`

## github-changelog-copilot-extensions-sunset

- **URL:** https://github.blog/changelog/2025-09-24-deprecate-github-copilot-extensions-github-apps/
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** Sunset notice for GitHub App-based Copilot Extensions — creation blocked Sep 24, 2025; full shutdown Nov 10, 2025; MCP servers recommended as replacement
- **Contributing files:** (none)
- **Status:** `referenced`

## github-docs-copilot-extensions-skillsets

- **URL:** https://docs.github.com/en/copilot/concepts/build-copilot-extensions/skillsets-for-copilot-extensions
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** Concept doc for Copilot Extension skillsets — up to 5 skills per extension, Copilot handles routing/prompt crafting/response, contrast with agent extensions
- **Contributing files:** (none)
- **Status:** `referenced`

## github-docs-copilot-extensions-building

- **URL:** https://docs.github.com/en/copilot/building-copilot-extensions/setting-up-copilot-extensions
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** How-to for setting up a Copilot Extension — GitHub App registration, Copilot Chat permission, Copilot Editor Context permission, backend URL configuration
- **Contributing files:** (none)
- **Status:** `referenced`

## vscode-chat-participant-api

- **URL:** https://code.visualstudio.com/api/extension-guides/ai/chat
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** VS Code Chat Participant API — createChatParticipant(), package.json contributes.chatParticipants, Language Model API, @mention invocation in Copilot Chat
- **Contributing files:** (none)
- **Status:** `referenced`

## github-marketplace-copilot-extensions

- **URL:** https://github.com/marketplace?type=apps&copilot_app=true
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** GitHub Marketplace listing for Copilot Extensions — browsable list of available extensions (historical; page remains live but product is sunset)
- **Contributing files:** (none)
- **Status:** `referenced`

## github-docs-marketplace-listing-requirements

- **URL:** https://docs.github.com/en/apps/github-marketplace/creating-apps-for-github-marketplace/requirements-for-listing-an-app
- **Research doc:** plugins/kyberforge/docs/research/docs/github-copilot-plugins/sources.md
- **Description:** Requirements for listing a GitHub App on the GitHub Marketplace — verified publisher, capability description, UX stability, submission and review process
- **Contributing files:** (none)
- **Status:** `referenced`