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Aaron Powell a7fdcd5006 Migrate plugins and canvas extensions to Agent Plugins spec (#2546) 
* feat: migrate plugins and extensions to Agent Plugins v1.0.0 spec

- Add \ to all 69 curated plugin manifests
- Migrate all 18 extension manifests: add \, move logo into
  xtensions.com.github.copilot.logo namespace, remove top-level
  logo and string xtensions: '.'
- Update eng/validate-plugins.mjs: require \, validate
  namespace-keyed extensions object for canvas extensions, widen
  name pattern to allow dots (spec §5.5, max 64 chars)
- Update eng/materialize-plugins.mjs: emit spec-clean served manifests
  (only spec fields: \, name, version, description, author,
  homepage, repository, license, keywords, extensions)
- Update eng/generate-website-data.mjs: read logo from namespace
  with fallback to top-level logo for compatibility
- Update eng/create-plugin.mjs: scaffold emits \
- Add .github/workflows/validate-plugins.yml: blocking CI for PRs
  touching plugins/** or extensions/**
- Add spec compliance check to external plugin quality gates:
  non-blocking warnings with ✅/⚠️/🛑 emoji legend
- Update AGENTS.md: document new extension manifest shape,
  add \ to plugin checklist

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 8f3a88cb-e01e-4760-8125-460490dc1a76

* refactor: consolidate canvas extension plugins

- Move all extension plugin manifests from extensions/<name> to plugins/<name>
- Keep extensions/<name> as reusable source only
- Remove standalone extension discovery from marketplace and website plugin catalogs
- Auto-bundle same-name extension sources during materialization
- Add build-only extensions.json references for sharing extensions across plugins
- Remove x-awesome-copilot extension metadata support
- Update validation and contributor documentation

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 8f3a88cb-e01e-4760-8125-460490dc1a76

* feat: add canvas extension scaffolding skill

- Add repo-local skill for creating canvas extension sources
- Generate spec-compliant plugin manifests under plugins/
- Support registering reusable extensions with multiple plugins
- Remove guidance for extension-local plugin manifests and custom fields

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 8f3a88cb-e01e-4760-8125-460490dc1a76

* fix: align extension namespaces with current guidance

- Use each extension ID as its manifest namespace key
- Update validation and website generation to resolve extension-specific namespaces
- Upsert plugin validation PR comments using the existing repository pattern

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 8f3a88cb-e01e-4760-8125-460490dc1a76

* fix: use Copilot extension namespace

- Adopt com.github.copilot for all canvas extension manifests
- Require the namespace during validation and website generation
- Update extension scaffolding guidance

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 8f3a88cb-e01e-4760-8125-460490dc1a76

* docs: regenerate plugin catalog after merge

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 8f3a88cb-e01e-4760-8125-460490dc1a76

* refactor(plugins): move manifests to plugin roots

Use root plugin.json manifests and namespaced extension directories throughout local tooling, validation, generation, and contributor documentation. Restore materialize-plugins.mjs line breaks so the source remains readable in GitHub.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 8f3a88cb-e01e-4760-8125-460490dc1a76

* feat(plugins): migrate manifests to namespaced composition

Move repository composition metadata under com.github.awesome-copilot, materialize reusable extensions into the plugin extensions directory, and improve contributor and PR validation guidance.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 8f3a88cb-e01e-4760-8125-460490dc1a76

* fix(validation): address plugin review findings

Restore executable build scripts, validate namespaced manifests and hook directories, improve README item counts, and manage validation comments across reruns.

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 8f3a88cb-e01e-4760-8125-460490dc1a76

* Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
Copilot-Session: 8f3a88cb-e01e-4760-8125-460490dc1a76
2026-08-06 22:29:31 +10:00
..
plugin.json
Migrate plugins and canvas extensions to Agent Plugins spec (#2546)
2026-08-06 22:29:31 +10:00
README.md
feat: Adds React 18 and 19 migration plugin (#1339)
2026-04-09 15:18:52 +10:00

README.md

React 18 Upgrade Plugin

Enterprise toolkit for migrating React 16/17 class-component codebases to React 18.3.1. Includes six specialized agents and seven skills targeting the specific challenges of upgrading legacy class-heavy applications.

Installation

copilot plugin install react18-upgrade@awesome-copilot

What's Included

Agents

  1. react18-commander - Master orchestrator that coordinates the entire migration pipeline through audit, dependencies, class-component surgery, automatic batching fixes, and test verification phases.

  2. react18-auditor - Deep-scan specialist that identifies every React 18 breaking change: unsafe lifecycle methods, legacy context, string refs, batching vulnerabilities, and all deprecation patterns.

  3. react18-dep-surgeon - Dependency upgrade specialist that pins react@18.3.1 exactly, upgrades testing-library to v14+, resolves all peer conflicts, and returns GO/NO-GO confirmation.

  4. react18-class-surgeon - Lifecycle and API migration specialist that performs semantic migrations for:

    • componentWillMount → componentDidMount or constructor
    • componentWillReceiveProps → getDerivedStateFromProps or componentDidUpdate
    • componentWillUpdate → getSnapshotBeforeUpdate or componentDidUpdate
    • Legacy Context → createContext
    • String refs → React.createRef()
    • findDOMNode → direct refs
    • ReactDOM.render → createRoot

  5. react18-batching-fixer - Automatic batching regression specialist that identifies and fixes the #1 silent runtime breaker in React 18: setState calls in async methods that relied on immediate intermediate re-renders.

  6. react18-test-guardian - Test suite fixer that handles Enzyme-to-RTL rewrites, RTL v14 API updates, automatic batching test regressions, StrictMode double-invoke changes, and runs tests until zero failures.

Skills

  1. react-audit-grep-patterns - Reference grep patterns for auditing React 18 deprecations across class components.

  2. react18-batching-patterns - Patterns and strategies for identifying and fixing automatic batching regressions.

  3. react18-dep-compatibility - Dependency compatibility matrix for React 18 with migration paths for testing-library, Apollo, Emotion, react-router.

  4. react18-enzyme-to-rtl - Complete guide for rewriting Enzyme tests to React Testing Library (RTL v14+).

  5. react18-legacy-context - Migration patterns for legacy context API → createContext.

  6. react18-lifecycle-patterns - Detailed migration patterns for all three unsafe lifecycle methods.

  7. react18-string-refs - Reference implementations for migrating string refs to React.createRef().

Quick Start

Ask: "Start implementing React 18 migration for my class-component codebase"

The react18-commander will guide you through:

  1. Audit → identify all breaking changes
  2. Deps → upgrade to react@18.3.1 + compatible libraries
  3. Class Surgery → migrate lifecycle methods and APIs
  4. Batching Fixes → fix automatic batching regressions
  5. Tests → migrate test suite and run to green

Why React 18.3.1?

React 18.3.1 was released to surface explicit warnings for every API that React 19 will remove. A clean 18.3.1 run with zero warnings is the direct prerequisite for the React 19 migration.

Key Features

  • ✅ Targets class-component-heavy codebases (NOT just functional component patterns)
  • ✅ Automatic batching issue detection and flushSync recommendations
  • ✅ Enzyme test detection with full RTL rewrite capability
  • ✅ Memory-based resumable pipeline - survive interruptions
  • ✅ Zero tolerance for incomplete migrations - run to full success
  • ✅ StrictMode-aware test fixes
  • ✅ Apollo Client, Emotion, react-router compatibility handling

Source

This plugin is part of Awesome Copilot.

License

MIT

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