chore: remove deprecated marketplace.json

The plugin marketplace has moved to anthropics/claude-plugins-official.
Remove the .claude-plugin/marketplace.json that was serving as the
example marketplace from launch.

.claude-plugin/marketplace.json

@@ -1,150 +0,0 @@
-{
-  "$schema": "https://anthropic.com/claude-code/marketplace.schema.json",
-  "name": "claude-code-plugins",
-  "version": "1.0.0",
-  "description": "Bundled plugins for Claude Code including Agent SDK development tools, PR review toolkit, and commit workflows",
-  "owner": {
-    "name": "Anthropic",
-    "email": "support@anthropic.com"
-  },
-  "plugins": [
-    {
-      "name": "agent-sdk-dev",
-      "description": "Development kit for working with the Claude Agent SDK",
-      "source": "./plugins/agent-sdk-dev",
-      "category": "development"
-    },
-    {
-      "name": "claude-opus-4-5-migration",
-      "description": "Migrate your code and prompts from Sonnet 4.x and Opus 4.1 to Opus 4.5.",
-      "version": "1.0.0",
-      "author": {
-        "name": "William Hu",
-        "email": "whu@anthropic.com"
-      },
-      "source": "./plugins/claude-opus-4-5-migration",
-      "category": "development"
-    },
-    {
-      "name": "code-review",
-      "description": "Automated code review for pull requests using multiple specialized agents with confidence-based scoring to filter false positives",
-      "version": "1.0.0",
-      "author": {
-        "name": "Boris Cherny",
-        "email": "boris@anthropic.com"
-      },
-      "source": "./plugins/code-review",
-      "category": "productivity"
-    },
-    {
-      "name": "commit-commands",
-      "description": "Commands for git commit workflows including commit, push, and PR creation",
-      "version": "1.0.0",
-      "author": {
-        "name": "Anthropic",
-        "email": "support@anthropic.com"
-      },
-      "source": "./plugins/commit-commands",
-      "category": "productivity"
-    },
-    {
-      "name": "explanatory-output-style",
-      "description": "Adds educational insights about implementation choices and codebase patterns (mimics the deprecated Explanatory output style)",
-      "version": "1.0.0",
-      "author": {
-        "name": "Dickson Tsai",
-        "email": "dickson@anthropic.com"
-      },
-      "source": "./plugins/explanatory-output-style",
-      "category": "learning"
-    },
-    {
-      "name": "feature-dev",
-      "description": "Comprehensive feature development workflow with specialized agents for codebase exploration, architecture design, and quality review",
-      "version": "1.0.0",
-      "author": {
-        "name": "Siddharth Bidasaria",
-        "email": "sbidasaria@anthropic.com"
-      },
-      "source": "./plugins/feature-dev",
-      "category": "development"
-    },
-    {
-      "name": "frontend-design",
-      "description": "Create distinctive, production-grade frontend interfaces with high design quality. Generates creative, polished code that avoids generic AI aesthetics.",
-      "version": "1.0.0",
-      "author": {
-        "name": "Prithvi Rajasekaran & Alexander Bricken",
-        "email": "prithvi@anthropic.com"
-      },
-      "source": "./plugins/frontend-design",
-      "category": "development"
-    },
-    {
-      "name": "hookify",
-      "description": "Easily create custom hooks to prevent unwanted behaviors by analyzing conversation patterns or from explicit instructions. Define rules via simple markdown files.",
-      "version": "0.1.0",
-      "author": {
-        "name": "Daisy Hollman",
-        "email": "daisy@anthropic.com"
-      },
-      "source": "./plugins/hookify",
-      "category": "productivity"
-    },
-    {
-      "name": "learning-output-style",
-      "description": "Interactive learning mode that requests meaningful code contributions at decision points (mimics the unshipped Learning output style)",
-      "version": "1.0.0",
-      "author": {
-        "name": "Boris Cherny",
-        "email": "boris@anthropic.com"
-      },
-      "source": "./plugins/learning-output-style",
-      "category": "learning"
-    },
-    {
-      "name": "plugin-dev",
-      "description": "Comprehensive toolkit for developing Claude Code plugins. Includes 7 expert skills covering hooks, MCP integration, commands, agents, and best practices. AI-assisted plugin creation and validation.",
-      "version": "0.1.0",
-      "author": {
-        "name": "Daisy Hollman",
-        "email": "daisy@anthropic.com"
-      },
-      "source": "./plugins/plugin-dev",
-      "category": "development"
-    },
-    {
-      "name": "pr-review-toolkit",
-      "description": "Comprehensive PR review agents specializing in comments, tests, error handling, type design, code quality, and code simplification",
-      "version": "1.0.0",
-      "author": {
-        "name": "Anthropic",
-        "email": "support@anthropic.com"
-      },
-      "source": "./plugins/pr-review-toolkit",
-      "category": "productivity"
-    },
-    {
-      "name": "ralph-wiggum",
-      "description": "Interactive self-referential AI loops for iterative development. Claude works on the same task repeatedly, seeing its previous work, until completion.",
-      "version": "1.0.0",
-      "author": {
-        "name": "Daisy Hollman",
-        "email": "daisy@anthropic.com"
-      },
-      "source": "./plugins/ralph-wiggum",
-      "category": "development"
-    },
-    {
-      "name": "security-guidance",
-      "description": "Security reminder hook that warns about potential security issues when editing files, including command injection, XSS, and unsafe code patterns",
-      "version": "1.0.0",
-      "author": {
-        "name": "David Dworken",
-        "email": "dworken@anthropic.com"
-      },
-      "source": "./plugins/security-guidance",
-      "category": "security"
-    }
-  ]
-}

CHANGELOG.md

@@ -1,5 +1,26 @@
 # Changelog
 
+## 2.1.19
+
+- Added env var `CLAUDE_CODE_ENABLE_TASKS`, set to `false` to keep the old system temporarily
+- Added shorthand `$0`, `$1`, etc. for accessing individual arguments in custom commands
+- Fixed crashes on processors without AVX instruction support
+- Fixed dangling Claude Code processes when terminal is closed by catching EIO errors from `process.exit()` and using SIGKILL as fallback
+- Fixed `/rename` and `/tag` not updating the correct session when resuming from a different directory (e.g., git worktrees)
+- Fixed resuming sessions by custom title not working when run from a different directory
+- Fixed pasted text content being lost when using prompt stash (Ctrl+S) and restore
+- Fixed agent list displaying "Sonnet (default)" instead of "Inherit (default)" for agents without an explicit model setting
+- Fixed backgrounded hook commands not returning early, potentially causing the session to wait on a process that was intentionally backgrounded
+- Fixed file write preview omitting empty lines
+- Changed skills without additional permissions or hooks to be allowed without requiring approval
+- Changed indexed argument syntax from `$ARGUMENTS.0` to `$ARGUMENTS[0]` (bracket syntax)
+- [SDK] Added replay of `queued_command` attachment messages as `SDKUserMessageReplay` events when `replayUserMessages` is enabled
+- [VSCode] Enabled session forking and rewind functionality for all users
+
+## 2.1.18
+
+- Added customizable keyboard shortcuts. Configure keybindings per context, create chord sequences, and personalize your workflow. Run `/keybindings` to get started. Learn more at https://code.claude.com/docs/en/keybindings
+
 ## 2.1.17
 
 - Fixed crashes on processors without AVX instruction support