The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.
Claude Code Toolkit
Claude Code toolkit for self improving skills, performance and mcp-essentials
Install
$
/plugin marketplace add spences10/claude-code-toolkitInstall command taken from the project's README or registry entry. Always review code before running it.
README excerpt
Read full README on GitHub →claude-code-toolkit
Productivity and ecosystem tools for Claude Code.
For vendor-agnostic skills usable outside Claude Code's plugin marketplace, use spences10/skills.
Quick Start
# Add marketplace
/plugin marketplace add spences10/claude-code-toolkit
# Install plugins
/plugin install mcp-essentials
/plugin install analytics
/plugin install toolkit-skills
/plugin install claude-workflow
/plugin install dev-environment
/plugin install devops-skills
/plugin install dev-practices
/plugin install nopeek
Plugins
mcp-essentials
Setup guide for recommended MCP servers:
| Server | Purpose |
|---|---|
| mcp-omnisearch | Unified search (Tavily, Kagi, GitHub, Perplexity) |
| mcp-sqlite-tools | Safe SQLite operations |
| mcpick | Manage MCP servers, plugins, cache, and profiles |
Skills: mcp-setup — setup guide for configuring MCP servers
analytics
Query Claude Code usage from ccrecall database:
- Token usage by model/project/day
- Session history
- Thinking block search
Skills: analytics — query token usage and session history
toolkit-skills
Core skills for the toolkit ecosystem.
| Skill | Description |
|---|---|
| ecosystem-guide | Guide to choosing the right tool across the ecosystem |
| research | Verify sources before presenting findings |
| skill-creator | Design and create Claude Skills using progressive disclosure |
| reflect | Extract learnings from sessions and persist to skills |
| plugin-dev | Validate, test, and distribute Claude Code plugins |
claude-workflow
Claude Code workflow patterns.
| Skill | Description |
|---|---|
| advanced-prompting | High-leverage prompts that challenge Claude's defaults |
| claude-md-maintenance | Maintain CLAUDE.md files effectively |
| orchestration | Multi-agent orchestration patterns for team mode |
| structured-rpi | Enhanced Research-Plan-Implement workflow with structured phase gates |
dev-environment
Development environment setup.
| Skill | Description |
|---|---|
| terminal-optimization | Terminal setup for Claude Code (Ghostty, statusline, tmux) |
| worktree-mastery | Git worktree patterns for parallel Claude sessions |
devops-skills
DevOps patterns.
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