ui-ticket-mcp

Human-to-AI code review bridge. Review UI prototypes directly in the browser, then let AI agents read your feedback and fix the code automatically.

You click on elements, write review comments like "This button should be blue" or "The spacing is wrong here", and your AI coding agent (Claude Code, Codex, Cursor, etc.) picks them up via MCP and resolves them - with full context about which element you pointed at, its CSS, position, and surrounding DOM.

How it works

journey
    title Using ui-ticket-mcp
    section Review
      Open your app in browser: 5: You
      Click on a broken element: 4: You
      Write what's wrong: 5: You
    section AI resolves
      Agent reads your feedback: 3: AI
      Agent finds the source file: 4: AI
      Agent fixes the code: 5: AI
      Review disappears: 5: You, AI

One Python process handles everything - MCP protocol for the agent (stdio) and REST API for the browser UI (HTTP). Reviews are stored in a SQLite database inside your project.

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Quick Start

1. Connect to your AI agent

Add to your project's .mcp.json (Claude Code, Codex, Cursor, etc.):

{
  "mcpServers": {
    "ui-ticket-mcp": {
      "command": "uvx",
      "args": ["ui-ticket-mcp"],
      "env": {
        "PROJECT_ROOT": "/path/to/your/project",
        "REVIEW_PORT": "3200"
      }
    }
  }
}

Restart the agent. uvx downloads and runs the package automatically - no manual install needed.

Alternative: pip install ui-ticket-mcp, then use "command": "ui-ticket-mcp" instead of uvx.

When the MCP server starts, it also launches a REST API on http://localhost:3200 (or your custom REVIEW_PORT) for the browser UI.

Important: The API always runs locally (localhost). The website https://uiticket.0ics.ai/ is the landing page only — it is NOT an API endpoint. Always use http://localhost:{PORT}/api as the api-url.

2. Add the browser UI to your app

npm install ui-ticket-panel

In your app's entry file (e.g. main.ts, index.tsx):

import { defineReviewPanel } from 'ui-ticket-panel';
defineReviewPanel();

Then in your root template:

<review-panel api-url="http://localhost:3200/api"></review-panel>

That's it. Works in any framework - Angular, React, Vue, Svelte, or plain HTML. It's a standard Web Component. For SSR frameworks (Next.js, Nuxt, SvelteKit) see the Framework Examples section — you need a dynamic import on the client side.

No bundler? Use CDN

<script type="module" src="https://unpkg.com/ui-ticket-panel/dist/bundle.js"></script>
<review-panel api-url="http://localhost:3200/api"></review-panel>

The bundle auto-registers the <review-panel> element. No npm install, no build step needed.

3. Start reviewing

Open your app in the browser. You'll see a floating chat button in the bottom-right corner. Click it to open the review panel, or press Alt+A to enter annotation mode and click directly on elements.

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Browser UI Features

Review Panel

The floating panel lets you browse, filter, and manage all reviews:

• Filter tabs - Switch between Open, Resolved, and All reviews
• Search - Full-text search across all review comments
• Tag filter - Filter by category: general, bug, suggestion, question
• Per-review actions - Resolve, Reopen, Delete, Reply, Highlight element
• Threaded replies - Reply to reviews for back-and-forth discussion
• Manual review form - Write reviews without annotation (Ctrl+Enter to submit)
• Badge counter - Floating button shows count of open reviews

Annotation System

The annotation system lets you point at specific elements and attach reviews to them:

• Click-to-annotate - Press Alt+A (or the target button), then click any element
• Multi-select drag - Click and drag to select a region of multiple elements
• Hover preview - See element identification in real-time as you move the mouse
• Smart popup - Appears above or below the element depending on available space

When you annotate an element, the system captures rich metadata that helps the AI agent understand exactly what you're pointing at:

Captured data	Example
Element name	Button 'Save', Input[email] 'Your email', Heading 2 'Features'
CSS selector	#main-header, div.card > button.primary:nth-of-type(2)
Bounding box	Position and dimensions in pixels
Nearby text	Own text + previous/next sibling text for context
Selected text	If you highlight text before annotating
CSS classes	Filtered (excludes framework-generated hashes)
Computed styles	Color, background, font, border, padding (smart per element type)
Full DOM path	body > div#app > section.content > div.card > button
Accessibility	ARIA roles, labels, tabindex, focusability
Sibling context	Parent tag, children count, adjacent sibling tags

Marker Badges

Reviews with annotations show numbered badges on the page next to the annotated element:

• Single review - Circular badge with the review ID, colored red (open) or green (resolved)
• Stacked reviews (3+ on the same element) - Pill badge showing count, with a gradient showing open/resolved ratio
• Click badge - Opens the review in the panel
• Delete badge - Remove via the X button on hover
• Tooltip - Hover to see author, element name, and comment preview

Tags

Every review can be tagged with a category:

Tag	Color	Use for
general	Indigo	General feedback (default)
bug	Red	Something is broken
suggestion	Green	Improvement idea
question	Amber	Needs clarification

Keyboard Shortcuts

Shortcut	Action
Alt+A	Toggle annotation mode
Ctrl+Enter	Submit review or reply
Escape	Close popup / exit annotation mode

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Architecture

graph LR
    Agent[AI Agent]
    Browser[Reviewer - Browser]
    Server[ui-ticket-mcp]
    DB[(SQLite)]

    Agent <-->|stdio MCP| Server
    Browser <-->|HTTP REST :3200| Server
    Server --- DB

• MCP (stdio) - Your agent framework starts it automatically. 10 tools for AI agents to read, resolve, and manage reviews.
• REST API (HTTP :3200) - Starts in background, serves the browser review UI. CORS enabled for all origins.
• SQLite (WAL mode) - Concurrent readers + 1 writer, 5s busy timeout. Database lives inside your project at .reviews/reviews.db.

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MCP Tools

10 tools available to AI agents:

get_review_summary()

Overview of all pages with review counts.

Page         | Open | Resolved | Total
------------ | ---- | -------- | -----
user-profile |    3 |        1 |     4
dashboard    |    0 |        2 |     2

get_reviews(page_id?: str)

List review comments. Optionally filtered by page. Shows status, tag, element context, and reply chains.

[#1] [OPEN] [bug] user-profile - alice: The header spacing is off
  → Element: Heading 2 'User Profile' | Selector: h2.page-title
[#2] [RESOLVED] user-profile - bob: Button color should be blue

get_annotated_reviews(page_id?: str)

Returns only reviews that have element annotation metadata. Includes element name, CSS selector, full DOM path, selected text, accessibility info - everything the agent needs to locate and understand the annotated element.

get_pending_work()

All open reviews grouped by page - the agent's "todo list".

## user-profile (2 open)
  - #1 [bug] (alice): The header spacing is off
  - #3 [suggestion] (alice): Add hover state to buttons

## dashboard (1 open)
  - #4 (bob): Chart labels are truncated

add_review(page_id, author, text, tag?, metadata?, parent_id?)

Create a new review. Supports tags, annotation metadata (JSON), and threading via parent_id.

resolve_review(review_id, resolved_by?)

Mark a review as resolved. Sets resolved_at timestamp and resolved_by (defaults to "agent").

reopen_review(review_id)

Reopen a previously resolved review. Clears resolution info.

batch_resolve(page_id, resolved_by?)

Resolve all open reviews on a page at once. Returns Resolved 3 review(s) on user-profile.

find_source_file_tool(page_id)

Find source files in PROJECT_ROOT matching a page ID. Searches by kebab-case, CamelCase, and glob patterns. Skips node_modules, dist, .git.

Found 3 file(s) for 'user-profile':
  - src/app/user-profile/user-profile.component.ts
  - src/app/user-profile/user-profile.component.html
  - src/app/shared/UserProfile.ts

get_setup_guide()

Returns the full setup guide (MCP config, REST API, browser UI). Useful when the agent needs to help set up the review system in a new project.

Typical agent workflow

graph TD
    A["get_pending_work()"] -->|See what needs attention| B["get_annotated_reviews(page)"]
    B -->|Get element metadata for context| C["find_source_file_tool(page)"]
    C -->|Locate the source files| D["Read & edit the code"]
    D --> E{Resolve}
    E -->|Single| F["resolve_review(id)"]
    E -->|All on page| G["batch_resolve(page)"]

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REST API

All endpoints under /api. CORS enabled for all origins.

Reviews

Method	Endpoint	Description
GET	/api/reviews/summary	Per-page summary with open/resolved counts
GET	/api/reviews	All reviews (newest first)
GET	/api/reviews/{page_id}	Reviews for a page. Query: ?status=open|resolved, ?tag=bug|suggestion|...
POST	/api/reviews/{page_id}	Create review
PATCH	/api/review/{id}	Update review (status, text, tag, metadata)
DELETE	/api/review/{id}	Delete review permanently

Replies

Method	Endpoint	Description
GET	/api/review/{id}/replies	Get all replies to a review (chronological)
POST	/api/reviews/{page_id}	Create reply (include parent_id in body)

POST body

Field	Type	Default	Description
text	string	-	Review comment (required)
author	string	"anonymous"	Reviewer name
tag	string	"general"	"general", "bug", "suggestion", or "question"
metadata	object	-	Annotation context (element, selector, styles, etc.)
parent_id	integer	-	Parent review ID for threaded replies

PATCH body

Field	Type	Description
status	"open" | "resolved"	Resolving auto-sets resolved_at and resolved_by
text	string	Updated comment text
tag	string	Updated tag
resolved_by	string	Who resolved it (default: "user" via API, "agent" via MCP)
metadata	object	Updated annotation metadata

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Database

Reviews are stored in SQLite inside your project at {PROJECT_ROOT}/.reviews/reviews.db. The database is auto-created on first run.

The .reviews/ directory includes:

File	Purpose
reviews.db	SQLite database (commit to git to share reviews with your team)
.gitkeep	Ensures directory is tracked
.gitignore	Ignores WAL temp files (*.db-wal, *.db-shm)

Path resolution:

1. REVIEW_DB_PATH env var (explicit override)
2. PROJECT_ROOT/.reviews/reviews.db (default)
3. ./reviews.db (fallback)

Schema

reviews (
  id          INTEGER PRIMARY KEY,
  page_id     TEXT NOT NULL,
  author      TEXT DEFAULT 'anonymous',
  text        TEXT NOT NULL,
  status      TEXT DEFAULT 'open',       -- 'open' | 'resolved'
  created_at  TEXT NOT NULL,             -- ISO 8601
  resolved_at TEXT,
  resolved_by TEXT,
  metadata    TEXT,                       -- JSON: annotation context
  tag         TEXT DEFAULT 'general',    -- 'general' | 'bug' | 'suggestion' | 'question'
  parent_id   INTEGER REFERENCES reviews(id)  -- threaded replies
)

Annotation metadata (JSON)

When a review is created via annotation, the metadata field contains:

{
  "element": "Button 'Save'",
  "selector": "button.btn-primary",
  "boundingBox": { "x": 100, "y": 200, "width": 80, "height": 40 },
  "selectedText": "Click to save",
  "cssClasses": "btn btn-primary active",
  "nearbyText": "Save your work | [after:] Cancel",
  "nearbyElements": "Parent: form.editor (5 children) | Siblings: input, button.secondary",
  "computedStyles": "color: #fff, background: #3b82f6, border-radius: 4px",
  "fullPath": "body > div#app > div.modal > form > button",
  "accessibility": "role=\"button\", tabindex=\"0\", focusable",
  "isMultiSelect": false,
  "url": "http://localhost:4200/user-profile"
}

This metadata gives the AI agent precise context about what you annotated - which element, where it is, what it looks like, and how to find it in the DOM.

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Web Component Attributes

Attribute	Required	Description
api-url	Yes	REST API base URL (e.g. http://localhost:3200/api)
page-id	No	Explicit page identifier for filtering reviews. If omitted, auto-detection is used (recommended)

Page identification

The panel needs to know which page the user is on, so it can show and file reviews for that specific page. There are two modes:

Automatic detection (recommended)

When no page-id attribute is set, the panel derives the page identifier from the URL pathname:

URL	Page ID
/	home
/analytics	analytics
/settings	settings
/user/profile	user/profile

The panel also listens for SPA navigation events (pushState, replaceState, popstate) and automatically reloads reviews when the route changes. This means it works out of the box with client-side routing in React Router, Vue Router, Angular Router, Next.js, etc.

<!-- Auto-detection: no page-id attribute needed -->
<review-panel api-url="http://localhost:3200/api"></review-panel>

Explicit page ID

If you need to control the page ID yourself (e.g. your pages don't map cleanly to URL paths), set the page-id attribute:

<review-panel api-url="http://localhost:3200/api" page-id="dashboard"></review-panel>

Important: These two modes are mutually exclusive. When page-id is set, auto-detection is completely disabled — the panel will NOT react to route changes. Do not combine both.

Programmatic API

const panel = document.querySelector('review-panel');

// Change page without reloading
panel.setPageId('dashboard');

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Packages

Package	Registry	Description
ui-ticket-mcp	PyPI	Python MCP server + REST API
ui-ticket-panel	npm	<review-panel> Web Component
ui-ticket-core	npm	Framework-agnostic core: types, API client, reactive store, annotation engine

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Environment Variables

Variable	Default	Description
PROJECT_ROOT	-	Root of the reviewed project. DB auto-created at {PROJECT_ROOT}/.reviews/
REVIEW_DB_PATH	(auto)	Explicit DB path override. Takes priority over PROJECT_ROOT
REVIEW_PORT	3200	Port for the REST API server

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Framework Examples

With a bundler

In your entry file (e.g. main.ts, main.js):

import { defineReviewPanel } from 'ui-ticket-panel';
defineReviewPanel();

Then in your HTML:

<review-panel api-url="http://localhost:3200/api"></review-panel>

Plain HTML (no bundler / CDN)

<script type="module" src="https://unpkg.com/ui-ticket-panel/dist/bundle.js"></script>
<review-panel api-url="http://localhost:3200/api"></review-panel>

React

import { defineReviewPanel } from 'ui-ticket-panel';
defineReviewPanel();

function App() {
  return <review-panel api-url="http://localhost:3200/api" />;
}

Vue

<template>
  <review-panel api-url="http://localhost:3200/api"></review-panel>
</template>

<script setup>
import { defineReviewPanel } from 'ui-ticket-panel';
defineReviewPanel();
</script>

Angular

// app.config.ts
import { defineReviewPanel } from 'ui-ticket-panel';
defineReviewPanel();

// component - add CUSTOM_ELEMENTS_SCHEMA
@Component({
  schemas: [CUSTOM_ELEMENTS_SCHEMA],
  template: `<review-panel api-url="http://localhost:3200/api"></review-panel>`
})

Svelte

<script>
  import { defineReviewPanel } from 'ui-ticket-panel';
  defineReviewPanel();
</script>

<review-panel api-url="http://localhost:3200/api"></review-panel>

Next.js (SSR)

Web Components use window and HTMLElement which don't exist during server-side rendering. You must load the panel dynamically on the client side:

// components/ReviewPanel.tsx
'use client';
import { useEffect } from 'react';

export default function ReviewPanel() {
  useEffect(() => {
    import('ui-ticket-panel').then(m => m.defineReviewPanel());
  }, []);
  return <review-panel api-url="http://localhost:3200/api" />;
}

Then use it in your root layout:

// app/layout.tsx
import ReviewPanel from './components/ReviewPanel';

export default function RootLayout({ children }) {
  return (
    <html>
      <body>
        {children}
        <ReviewPanel />
      </body>
    </html>
  );
}

Nuxt (SSR)

<template>
  <ClientOnly>
    <review-panel api-url="http://localhost:3200/api"></review-panel>
  </ClientOnly>
</template>

<script setup>
import { onMounted } from 'vue';

onMounted(async () => {
  const { defineReviewPanel } = await import('ui-ticket-panel');
  defineReviewPanel();
});
</script>

SvelteKit (SSR)

<script>
  import { onMount } from 'svelte';

  onMount(async () => {
    const { defineReviewPanel } = await import('ui-ticket-panel');
    defineReviewPanel();
  });
</script>

<review-panel api-url="http://localhost:3200/api"></review-panel>

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Issues & Feedback

Found a bug or have a feature request? Open an issue on this repository.

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License

CC BY-NC 4.0 — free for study, research, and non-commercial use. See LICENSE for details.

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Built by Šimon Cmar, Ladislav Sopko & Lorenzo Leoni