bystandardbeagle· 2 MCP servers
Claude Code marketplace plugins: agnt (browser superpowers), lci (code intelligence), tools (combined)
$git clone https://github.com/standardbeagle/standardbeagle-toolsInstalls into the current project.
Install standardbeagle-tools by running `git clone https://github.com/standardbeagle/standardbeagle-tools`, then use it for the current task and follow its documentation at https://github.com/standardbeagle/standardbeagle-tools.
| 1 | # Standard Beagle Tools |
| 2 | |
| 3 | AI coding agent toolkit and UX MCP package monorepo — Claude Code plugins, MCP servers, and reusable npm packages for design, accessibility, and frontend tooling. |
| 4 | |
| 5 | ## Plugins (Claude Code marketplace) |
| 6 | |
| 7 | This marketplace ships a growing collection of plugins for Claude Code. The core development trio: |
| 8 | |
| 9 | | Plugin | Description | Version | Category | |
| 10 | |--------|-------------|---------|----------| |
| 11 | | **agnt** | Browser superpowers for AI coding agents: dev-server + reverse proxy, live error/incident inbox, quality audits, visual regression, and sketch/design modes | 0.10.1 | development | |
| 12 | | **lci** | Lightning Code Index: sub-millisecond semantic code search and call-hierarchy intelligence | 0.6.1 | development | |
| 13 | | **tools** | Complete toolkit combining agnt and lci | 1.0.0 | development | |
| 14 | | **mcp-architect** | Design high-quality MCP servers with progressive discovery and token efficiency | 0.1.0 | development | |
| 15 | | **mcp-tester** | MCP server testing and debugging with mcp-debug | 0.2.0 | development | |
| 16 | | **slop-mcp** | SLOP integration for MCP management and orchestration | 0.2.0 | development | |
| 17 | | **slop-coder** | SLOP language coding assistant and reference | 0.1.0 | development | |
| 18 | | **dartai** | Dart task management with adversarial cooperation loops | 0.3.0 | development | |
| 19 | | **workflow** | General-purpose adversarial workflow automation | 0.1.0 | development | |
| 20 | | **figma-query** | Token-efficient Figma integration with design library extraction | 0.1.0 | design | |
| 21 | | **ux-design** | UX design principles, color theory, typography, and accessibility | 0.1.0 | design | |
| 22 | | **ux-developer** | UX-driven development with WCAG 2.2 and usability best practices | 0.1.0 | development | |
| 23 | | **prompt-engineer** | State-of-the-art prompt and context engineering for 2026 | 0.1.0 | ai | |
| 24 | |
| 25 | ## Packages (npm `@standardbeagle/*`) |
| 26 | |
| 27 | This monorepo also publishes six npm packages under `packages/` — UX-focused MCP servers and shared libraries: |
| 28 | |
| 29 | | Package | Version | Description | |
| 30 | |---------|---------|-------------| |
| 31 | | [`@standardbeagle/ux-core`](./packages/ux-core/README.md) |  | Shared types, validators, k-means clustering | |
| 32 | | [`@standardbeagle/color`](./packages/color/README.md) |  | Color tools — contrast, palette generation, accessibility | |
| 33 | | [`@standardbeagle/a11y-audit`](./packages/a11y-audit/README.md) |  | Accessibility audit MCP server (axe-core, WCAG 2.2) | |
| 34 | | [`@standardbeagle/design-token`](./packages/design-token/README.md) |  | DTCG design tokens — validate, transform, generate | |
| 35 | | [`@standardbeagle/typography`](./packages/typography/README.md) |  | Typography tools — modular scale, font pairing | |
| 36 | | [`@standardbeagle/image-processing`](./packages/image-processing/README.md) |  | Image tools — sharp, blurhash, svgo | |
| 37 | |
| 38 | ### Architecture |
| 39 | |
| 40 | ```mermaid |
| 41 | flowchart LR |
| 42 | Client[MCP Client] --> Color[packages/color] |
| 43 | Client --> A11y[packages/a11y-audit] |
| 44 | Client --> DT[packages/design-token] |
| 45 | Client --> Typo[packages/typography] |
| 46 | Client --> Img[packages/image-processing] |
| 47 | Color --> Core[packages/ux-core] |
| 48 | A11y --> Core |
| 49 | DT --> Core |
| 50 | Typo --> Core |
| 51 | Img --> Core |
| 52 | Img -.palette.-> Color |
| 53 | ``` |
| 54 | |
| 55 | Each MCP server package exposes tools to MCP clients (Claude Code, Cursor, etc.) and depends on `ux-core` for shared utilities. The `image-processing` package optionally calls into `color` for palette extraction. |
| 56 | |
| 57 | ## Installation |
| 58 | |
| 59 | ### Step 1: Install the binaries |
| 60 | |
| 61 | ```bash |
| 62 | # Via npm (recommended) |
| 63 | npm install -g @standardbeagle/agnt @standardbeagle/lci |
| 64 | |
| 65 | # Via pip |
| 66 | pip install agnt lightning-code-index |
| 67 | |
| 68 | # Via Go (lci only) |
| 69 | go install github.com/standardbeagle/lci/cmd/lci@latest |
| 70 | ``` |
| 71 | |
| 72 | ### Step 2: Register MCP servers |
| 73 | |
| 74 | **Option A: Via slop-mcp** (recommended if available) |
| 75 | ``` |
| 76 | mcp__plugin_slop-mcp_slop-mcp__manage_mcps |
| 77 | { "action": "register", "name": "agnt", "command": "npx", "args": ["-y", "@standardbeagle/agnt", "mcp"], "scope": "user" } |
| 78 | { "action": "register", "name": "lci", "command": "npx", "args": ["-y", "@standardbeagle/lci", "mcp"], "scope": "user" } |
| 79 | ``` |
| 80 | |
| 81 | **Option B: Add to `.mcp.json`** |
| 82 | ```json |
| 83 | { |
| 84 | "agnt": { |
| 85 | "command": "npx", |
| 86 | "args": ["-y", "@standardbeagle/agnt", "mcp"] |
| 87 | }, |
| 88 | "lci": { |
| 89 | "command": "npx", |
| 90 | "args": ["-y", "@standardbeagle/lci", "mcp"] |
| 91 | } |
| 92 | } |
| 93 | ``` |
| 94 | |
| 95 | ### Step 3 (Optional): Install Claude Code plugins |
| 96 | |
| 97 | The plugins provide commands, skills, and agents that help you use the MCP tools: |
| 98 | |
| 99 | ```bash |
| 100 | # Install the complete toolkit (recommended) |
| 101 | claude plugin add tools@standardbeagle-tools |
| 102 | |
| 103 | # Or install individual plugins |
| 104 | claude plugin add agnt@standardbeagle-tools |
| 105 | claude plugin add lci@standardbeagle-tools |
| 106 | ``` |
| 107 | |
| 108 | ## Plugin Details |
| 109 | |
| 110 | ### agnt |