| name | domscribe |
| description | Work with Domscribe — the pixel-to-code bridge. Use when setting up, initializing, or configuring Domscribe for a project, OR when editing or modifying UI components (React, Vue, Next.js, Nuxt), implementing features from captured UI annotations, querying runtime context for source locations, exploring component structure, or when user mentions annotations, queued tasks, UI changes, props, state, DOM, or asks about how elements render at runtime. |
| allowed-tools | Read, Edit, Write, Bash, Glob, mcp__domscribe__*, domscribe.*, mcp.domscribe.*, process_next, check_status, explore_component, find_annotations |
Domscribe
Domscribe bridges running UI and source code. It maps every rendered element to its exact source location and captures live runtime context (props, state, DOM). This works in two directions:
- UI → Code: User clicks an element in the browser, Domscribe captures it as an annotation with source location, runtime context, and user intent. You claim and implement it.
- Code → UI: You're editing a source file and want to know what an element looks like at runtime. Query by file and line to get live props, state, and DOM snapshot.
Setup / Initialization
If domscribe.status returns active: false, Domscribe is not yet configured in this workspace. The .domscribe/ directory is created automatically when the dev server starts with the Domscribe bundler plugin configured. Follow this procedure to set it up:
- Confirm dormant state — call
domscribe.status. If active: false, proceed. Note the cwd in the response.
- Detect framework — read
package.json (at cwd, or at the appRoot from domscribe.config.json if it exists) and match dependencies against the table below.
- Detect package manager — check which lockfile exists at the project root.
- Install the package — run the appropriate install command via Bash (e.g.,
pnpm add -D @domscribe/next).
- Edit the bundler config — read the config file and apply the integration pattern. Load
references/config-patterns.md for the exact import, transformation, and example for each framework.
- Update
.gitignore — if .domscribe is not already listed, append a # Domscribe artifacts comment and .domscribe entry.
- Inform the user — tell them to start (or restart) their dev server. Domscribe activates automatically on first run.
Framework Detection
Check dependencies and devDependencies in package.json. Match top-down (first match wins):
| Dependency | Framework |
|---|
next | next |
nuxt | nuxt |
react + vite | react-vite |
react (no vite) | react-webpack |
vue + vite | vue-vite |
vue (no vite) | vue-webpack |
vite only | other-vite |
webpack only | other-webpack |
Package Mapping
| Framework | Package | Config file |
|---|
| next | @domscribe/next | next.config.ts |
| nuxt | @domscribe/nuxt | nuxt.config.ts |
| react-vite | @domscribe/react | vite.config.ts |
| react-webpack | @domscribe/react | webpack.config.js |
| vue-vite | @domscribe/vue | vite.config.ts |
| vue-webpack | @domscribe/vue | webpack.config.js |
| other-vite | @domscribe/transform | vite.config.ts |
| other-webpack | @domscribe/transform | webpack.config.js |
Package Manager Detection
| Lockfile | Package manager |
|---|
pnpm-lock.yaml | pnpm |
yarn.lock | yarn |
bun.lock / bun.lockb | bun |
| (none) | npm |
Install command pattern: <pm> add -D <package> (pnpm/yarn/bun) or npm install -D <package>.
Monorepo Projects
If domscribe.config.json exists at the project root with an appRoot field, the frontend app lives in that subdirectory. Install packages and find the bundler config relative to appRoot.
If the project appears to be a monorepo (e.g., apps/, packages/ directories, workspace config in package.json) but no domscribe.config.json exists, ask the user which directory contains the frontend app. Then write domscribe.config.json at the project root:
{ "appRoot": "apps/web" }
After Setup
The MCP server starts in dormant mode when no .domscribe/ directory exists. After the user starts their dev server, the bundler plugin creates .domscribe/ automatically. The MCP server will need to restart to detect the new workspace and transition to active mode with the full tool suite.
Editing Components (Code → UI)
Why query runtime state? Source code alone doesn't tell you what props a component actually received, whether a conditional branch rendered, what CSS classes were applied, or what text the user sees. domscribe.query.bySource gives you the live truth from the browser.
When to query (these tasks benefit):
- Visual/styling bugs — "the button is the wrong color." Query reveals the actual
className, inline styles, and computed attributes so you can see what CSS is winning.
- Conditional rendering bugs — "this section doesn't show up." Query tells you
rendered: false or shows the actual props/state that control the condition.
- Prop tracing — "the title shows 'undefined'." Query shows
componentProps with the actual values flowing through, revealing where the chain breaks.
- Verifying your edit worked — After editing, query the same location to confirm the DOM, props, and text updated as expected (HMR will have applied your change).
When NOT to query (save the round-trip):
- Pure logic changes (utils, hooks with no DOM output, API calls)
- Creating new files or components from scratch (nothing to query yet)
- Refactoring (renames, extractions, moves)
- Type errors or build failures (the compiler already tells you what's wrong)
Prerequisite: Runtime queries require the user's dev server to be running and the target component to be rendered in an open browser tab. Before calling domscribe.query.bySource, confirm with the user that they have the relevant page open. If you get browserConnected: false or runtime.rendered: false, ask the user to navigate to the page that renders the component and retry.
Workflow:
- Confirm the page is open — ask the user if they have the page with the target component open in their browser. If not, ask them to navigate there first.
- Before editing (if the task matches the scenarios above): Call
domscribe.query.bySource with the file path and line number. Inspect runtime.componentProps, runtime.componentState, and runtime.domSnapshot.
- Edit the component source code.
- After editing: Call
domscribe.query.bySource again to verify your changes took effect in the live browser.
Quick Commands (MCP Prompts)
| Command | Purpose |
|---|
process_next | Process next queued annotation |
check_status | System health and queue counts |
explore_component | List elements in a component |
find_annotations | Search annotation history |
All Tools Reference
Tool names below use their MCP registration names (e.g., domscribe.query.bySource). Your client may map these differently — use whatever tool name your environment exposes for the domscribe MCP server.
Source Query (Code → UI)
| Tool | Purpose |
|---|
domscribe.query.bySource | Get runtime context for a source location (file + line) |
domscribe.manifest.query | Find all manifest entries by file, component, or tag name |
domscribe.manifest.stats | Manifest coverage statistics (entry/file/component counts) |
Element Resolution (UI → Code)
| Tool | Purpose |
|---|
domscribe.resolve | Get source location for element ID |
domscribe.resolve.batch | Resolve multiple element IDs |
Annotation Workflow
| Tool | Purpose |
|---|
domscribe.annotation.process | Claim next queued annotation (atomic) |
domscribe.annotation.respond | Store your implementation message |
domscribe.annotation.updateStatus | Mark as processed or failed |
domscribe.annotation.list | List annotations by status |
domscribe.annotation.get | Get full annotation details |
domscribe.annotation.search | Search by element, file, or text |
System
| Tool | Purpose |
|---|
domscribe.status | Relay health, manifest, queue counts |
Using domscribe.query.bySource
When you're working in a source file and want to understand what an element looks like at runtime, query by file path and line number:
Input:
file (required): Absolute file path as stored in the manifest. Use domscribe.manifest.query to discover exact paths.
line (required): Line number (1-indexed).
tolerance (optional): Match elements within N lines of the target (default: 0, exact match).
column (optional): Narrow to a specific column (0-indexed).
includeRuntime (optional): Skip the browser query if you only need manifest data (default: true).
Output:
sourceLocation: Confirmed file, line range, tag name, component name.
runtime: Live data from the browser (if connected) — componentProps, componentState, domSnapshot (tag, attributes, innerText).
browserConnected: Whether a browser client is connected via WebSocket.
Use domscribe.manifest.query first if you don't know the exact line — it returns all entries for a file, component, or tag, which you can then target with domscribe.query.bySource.
Annotation Lifecycle
queued → processing → processed
↘ failed (with errorDetails)
any status → archived
- queued: Waiting for agent to claim
- processing: Agent is working on it (claimed atomically)
- processed: Successfully implemented
- failed: Could not implement (include
errorDetails)
- archived: Removed from active queue
Annotation Workflow
-
Claim an annotation via domscribe.annotation.process
-
Understand the response:
userIntent: What the user wants (e.g., "Make this button red")
sourceLocation.file: Source file path
sourceLocation.line: Line number
sourceLocation.componentName: React/Vue component name
element.innerText: Visible text (verify correct element)
runtimeContext.componentProps: Current prop values
-
Navigate to sourceLocation.file:sourceLocation.line
-
Implement the change based on userIntent
-
Verify via domscribe.query.bySource — call with the same file and line to confirm your changes are reflected in the live browser (HMR will have updated the page)
-
Store your response via domscribe.annotation.respond with the annotation ID and a message describing what you did
-
Complete the annotation via domscribe.annotation.updateStatus with status processed (or failed with errorDetails)
Error Handling
| Situation | Action |
|---|
found: false | No match — queue empty or no manifest entry |
browserConnected: false | Runtime data unavailable; manifest data still returned |
| Source file missing | Mark failed with details |
| Ambiguous intent | Ask user for clarification before implementing |
| Partial success | Mark processed, note limitations in response |
| Cannot implement | Mark failed with errorDetails explaining why |
Key Principles
- Read
userIntent carefully — it's the user's actual words
- Use
domscribe.query.bySource to verify runtime state before and after changes
- Use
element.innerText to confirm you're changing the right element
- Use
runtimeContext to understand current component state
- Make minimal, focused changes
- Provide clear explanation via
domscribe.annotation.respond
- Search with
domscribe.annotation.search to check for related prior work