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Create and manage Unleash feature flags from Claude — evaluate whether a change needs a flag, detect existing flags to prevent duplicates, set rollout strategies, toggle environments, and get cleanup guidance — with the official Unleash MCP server following Unleash best practices.

Expert capability pack for reviewing Claude Code subagent transcript files, documented retention settings, compaction events, and summary handoff so verbose delegated work stays out of the main conversation.

Source-backed rules for reviewing feature flag changes across their full lifecycle, covering flag creation, naming, default values, kill switches, targeting, rollout safety, cleanup of stale flags, and privacy-safe configuration evidence.

Source-backed agent that coordinates parallel Claude Code sessions across git worktrees, planning isolation, base-branch choice, gitignored-file copying, subagent worktrees, and cleanup so parallel edits do not collide, grounded in the official Claude Code worktrees docs.

A Stop hook that terminates lingering database connections when a Claude Code session ends — via PostgreSQL pg_terminate_backend, MySQL KILL, Redis CLIENT KILL, and MongoDB connection cleanup.

Cleans up temporary files, caches, and resources when Claude session ends. This Stop hook provides comprehensive environment cleanup for development projects, automatically removing temporary files, build artifacts, cache directories, and system-specific files across multiple platforms.

A Claude Code SessionEnd hook that scans a project for dead code and writes a report to .claude/reports. It runs available tools per language: ESLint and Knip for JS/TS, autoflake or pylint for Python, Knip for unused npm dependencies, ripgrep for unreferenced src files, and jq to flag zero-coverage files.

Detects unused CSS selectors when stylesheets are modified to keep CSS lean using PurgeCSS, PostCSS, and content analysis. This hook runs on CSS/SCSS file write/edit operations and analyzes stylesheets to identify unused selectors, generate optimized output, and report before/after size metrics.

Automatically runs go mod tidy when Go files or go.mod are modified to keep dependencies clean.

Intelligent code refactoring command that analyzes code structure and applies best practices for improved maintainability and performance

Custom slash command for behavior-preserving, scoped refactors of one file, function, or selection — stays inside a narrow ownership boundary for a reviewable, PR-sized change instead of a repo-wide pass

Use git worktrees with Claude Code to run parallel sessions safely: EnterWorktree, background isolation, cleanup of .claude/worktrees/, and branch ownership rules that prevent conflicting edits.

Source-backed agent for cleaning up open-source GitHub issue queues with reproducibility checks, labels, issue types, milestones, assignees, project views, duplicate links, and maintainer-safe response drafts.

Official GreenSock GSAP AI Skills for coding agents that need correct GSAP tweens, timelines, ScrollTrigger, React cleanup, plugins, utilities, framework lifecycle guidance, and animation performance patterns.

ActiveCampaign's official server that wires Postmark into Claude over stdio, exposing 24 tools for outbound mail, template authoring, message lookup, bounce handling, and suppression list cleanup.

MCP server that connects Claude to Windows CDB/WinDbg for crash dump discovery, dump triage, remote debugging targets, custom debugger commands, debugger cleanup, and CTRL+BREAK interrupts.