ReddRadar
Agent skill
nextjs-devtools
Next.js development tooling via MCP. Inspect routes, components, build info, and debug Next.js apps. Use when working on Next.js applications, debugging routing, or inspecting app structure. NOT for general React or non-Next.js projects.
Install this agent skill to your Project
npx add-skill https://github.com/aiskillstore/marketplace/tree/main/skills/92bilal26/nextjs-devtools
SKILL.md
Next.js DevTools
Inspect and debug Next.js applications via MCP server.
Quick Start
# Start server (spawns on-demand)
bash scripts/start-server.sh
# Or use directly via mcp-client
python3 scripts/mcp-client.py call \
-s "npx next-devtools-mcp@latest" \
-t list-routes
Available Tools
| Tool | Description |
|---|---|
list-routes |
Get all app routes |
get-route-info |
Details for specific route |
list-components |
React components in app |
get-build-info |
Build configuration |
get-config |
next.config.js settings |
Workflow Patterns
Pattern 1: Route Inspection
# List all routes
python3 scripts/mcp-client.py call \
-s "npx next-devtools-mcp@latest" \
-t list-routes
# Get specific route details
python3 scripts/mcp-client.py call \
-s "npx next-devtools-mcp@latest" \
-t get-route-info \
-p '{"route": "/api/auth"}'
Pattern 2: Debug Build Issues
# Check build config
python3 scripts/mcp-client.py call \
-s "npx next-devtools-mcp@latest" \
-t get-build-info
# Check next.config.js
python3 scripts/mcp-client.py call \
-s "npx next-devtools-mcp@latest" \
-t get-config
Pattern 3: Component Discovery
python3 scripts/mcp-client.py call \
-s "npx next-devtools-mcp@latest" \
-t list-components
Scripts
start-server.sh
For persistent server (multiple calls):
bash scripts/start-server.sh
# Server runs on default port
# Use mcp-client.py with -u flag instead of -s
On-Demand (Recommended)
For single calls, use -s flag which spawns server per-call:
python3 scripts/mcp-client.py call \
-s "npx next-devtools-mcp@latest" \
-t <tool-name>
Troubleshooting
| Issue | Solution |
|---|---|
| Server not starting | Check npx next-devtools-mcp@latest works manually |
| No routes found | Ensure running from Next.js project root |
| Build info empty | Run next build first |
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