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docs: use cd-based MCP config in CONTRIBUTING local dev examples (#526)

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Switch local development MCP server config from `npm --prefix` to
`bash -c "cd DIR && npm --silent run start:stdio"`. The --prefix form
caused connection instability in Claude Desktop (reconnect loops with
orphan builds competing on the same dist/).

Also updated example paths from ~/code/ext-apps to ~/src/ext-apps.
This commit is contained in:
Olivier Chafik 2026-03-06 13:44:57 +00:00 • committed by GitHub
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179
CONTRIBUTING.md
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@ -277,9 +277,9 @@ cd ext-apps
npm install
```
Then configure your MCP client to build and run the local server. Replace `~/code/ext-apps` with your actual clone path.
Then configure your MCP client to build and run the local server. Replace `~/src/ext-apps` with your actual clone path.
Most example servers have a `start:stdio` script that builds and launches in stdio mode. Use `npm --silent run start:stdio` for these:
Most example servers have a `start:stdio` script that builds and launches in stdio mode:
<details>
<summary>MCP client configuration for local development (all examples)</summary>
@ -288,207 +288,150 @@ Most example servers have a `start:stdio` script that builds and launches in std
{
"mcpServers": {
"basic-react": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/basic-server-react",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/basic-server-react && npm --silent run start:stdio"
]
},
"basic-vanillajs": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/basic-server-vanillajs",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/basic-server-vanillajs && npm --silent run start:stdio"
]
},
"basic-vue": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/basic-server-vue",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/basic-server-vue && npm --silent run start:stdio"
]
},
"basic-svelte": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/basic-server-svelte",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/basic-server-svelte && npm --silent run start:stdio"
]
},
"basic-preact": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/basic-server-preact",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/basic-server-preact && npm --silent run start:stdio"
]
},
"basic-solid": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/basic-server-solid",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/basic-server-solid && npm --silent run start:stdio"
]
},
"budget-allocator": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/budget-allocator-server",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/budget-allocator-server && npm --silent run start:stdio"
]
},
"cohort-heatmap": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/cohort-heatmap-server",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/cohort-heatmap-server && npm --silent run start:stdio"
]
},
"customer-segmentation": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/customer-segmentation-server",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/customer-segmentation-server && npm --silent run start:stdio"
]
},
"map": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/map-server",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/map-server && npm --silent run start:stdio"
]
},
"pdf": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/pdf-server",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/pdf-server && npm --silent run start:stdio"
]
},
"scenario-modeler": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/scenario-modeler-server",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/scenario-modeler-server && npm --silent run start:stdio"
]
},
"shadertoy": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/shadertoy-server",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/shadertoy-server && npm --silent run start:stdio"
]
},
"sheet-music": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/sheet-music-server",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/sheet-music-server && npm --silent run start:stdio"
]
},
"system-monitor": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/system-monitor-server",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/system-monitor-server && npm --silent run start:stdio"
]
},
"threejs": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/threejs-server",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/threejs-server && npm --silent run start:stdio"
]
},
"transcript": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/transcript-server",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/transcript-server && npm --silent run start:stdio"
]
},
"video-resource": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/video-resource-server",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/video-resource-server && npm --silent run start:stdio"
]
},
"wiki-explorer": {
"command": "npm",
"command": "bash",
"args": [
"--silent",
"--prefix",
"~/code/ext-apps/examples/wiki-explorer-server",
"run",
"start:stdio"
"-c",
"cd ~/src/ext-apps/examples/wiki-explorer-server && npm --silent run start:stdio"
]
},
"qr": {
"command": "bash",
"args": [
"-c",
"uv run ~/code/ext-apps/examples/qr-server/server.py --stdio"
"uv run ~/src/ext-apps/examples/qr-server/server.py --stdio"
]
},
"say": {
"command": "bash",
"args": [
"-c",
"uv run --index https://pypi.org/simple ~/code/ext-apps/examples/say-server/server.py --stdio"
"uv run --index https://pypi.org/simple ~/src/ext-apps/examples/say-server/server.py --stdio"
]
}
}