[BUG]

[wxkingstar]

"MCP error -32001: Error POSTing to endpoint (HTTP 500): {
"message": "strlen(): Argument #1 ($string) must be of type string, array given",
"exception": "TypeError",
"file": "/application/vendor/lucianotonet/laravel-telescope-mcp/src/MCP/Tools/RequestsTool.php",
"line": 275,
"trace": [
{
"file": "/application/vendor/lucianotonet/laravel-telescope-mcp/src/MCP/Tools/RequestsTool.php",
"line": 275,
"function": "strlen"
},
{
"file": "/application/vendor/lucianotonet/laravel-telescope-mcp/src/MCP/Tools/RequestsTool.php",
"line": 110,
"function": "getRequestDetails",
"class": "LucianoTonet\TelescopeMcp\MCP\Tools\RequestsTool",
"type": "->"
},
{
"file": "/application/vendor/lucianotonet/laravel-telescope-mcp/src/MCP/TelescopeMcpServer.php",
"line": 185,
"function": "execute",
"class": "LucianoTonet\TelescopeMcp\MCP\Tools\RequestsTool",
"type": "->"
},
{
"file": "/application/vendor/lucianotonet/laravel-telescope-mcp/src/Http/Controllers/McpController.php",
"line": 168,
"function": "executeTool",
"class": "LucianoTonet\TelescopeMcp\MCP\TelescopeMcpServer",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Routing/Controller.php",
"line": 54,
"function": "manifest",
"class": "LucianoTonet\TelescopeMcp\Http\Controllers\McpController",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php",
"line": 43,
"function": "callAction",
"class": "Illuminate\Routing\Controller",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Routing/Route.php",
"line": 259,
"function": "dispatch",
"class": "Illuminate\Routing\ControllerDispatcher",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Routing/Route.php",
"line": 205,
"function": "runController",
"class": "Illuminate\Routing\Route",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Routing/Router.php",
"line": 806,
"function": "run",
"class": "Illuminate\Routing\Route",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php",
"line": 144,
"function": "Illuminate\Routing\{closure}",
"class": "Illuminate\Routing\Router",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php",
"line": 119,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Routing/Router.php",
"line": 805,
"function": "then",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Routing/Router.php",
"line": 784,
"function": "runRouteWithinStack",
"class": "Illuminate\Routing\Router",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Routing/Router.php",
"line": 748,
"function": "runRoute",
"class": "Illuminate\Routing\Router",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Routing/Router.php",
"line": 737,
"function": "dispatchToRoute",
"class": "Illuminate\Routing\Router",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php",
"line": 200,
"function": "dispatch",
"class": "Illuminate\Routing\Router",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php",
"line": 144,
"function": "Illuminate\Foundation\Http\{closure}",
"class": "Illuminate\Foundation\Http\Kernel",
"type": "->"
},
{
"file": "/application/vendor/livewire/livewire/src/Features/SupportDisablingBackButtonCache/DisableBackButtonCacheMiddleware.php",
"line": 19,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php",
"line": 183,
"function": "handle",
"class": "Livewire\Features\SupportDisablingBackButtonCache\DisableBackButtonCacheMiddleware",
"type": "->"
},
{
"file": "/application/app/Http/Middleware/Cors.php",
"line": 14,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php",
"line": 183,
"function": "handle",
"class": "App\Http\Middleware\Cors",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php",
"line": 21,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ConvertEmptyStringsToNull.php",
"line": 31,
"function": "handle",
"class": "Illuminate\Foundation\Http\Middleware\TransformsRequest",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php",
"line": 183,
"function": "handle",
"class": "Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php",
"line": 21,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php",
"line": 40,
"function": "handle",
"class": "Illuminate\Foundation\Http\Middleware\TransformsRequest",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php",
"line": 183,
"function": "handle",
"class": "Illuminate\Foundation\Http\Middleware\TrimStrings",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php",
"line": 27,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php",
"line": 183,
"function": "handle",
"class": "Illuminate\Foundation\Http\Middleware\ValidatePostSize",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php",
"line": 99,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php",
"line": 183,
"function": "handle",
"class": "Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Http/Middleware/HandleCors.php",
"line": 49,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php",
"line": 183,
"function": "handle",
"class": "Illuminate\Http\Middleware\HandleCors",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php",
"line": 39,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php",
"line": 183,
"function": "handle",
"class": "Illuminate\Http\Middleware\TrustProxies",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php",
"line": 119,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php",
"line": 175,
"function": "then",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "/application/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php",
"line": 144,
"function": "sendRequestThroughRouter",
"class": "Illuminate\Foundation\Http\Kernel",
"type": "->"
},
{
"file": "/application/public/index.php",
"line": 56,
"function": "handle",
"class": "Illuminate\Foundation\Http\Kernel",
"type": "->"
}
]
}"

[wxkingstar]

RequestsTool.php:
// Response content (if available and not too large) if (!empty($content['response'])) { $response = $content['response']; if (strlen($response) > 1000) { $response = substr($response, 0, 1000) . "\n... (response truncated)"; } $output .= "Response Content:\n" . $response . "\n"; }

// Response content (if available and not too large) if (!empty($content['response'])) { $response = $content['response']; $response = is_array($response) ? json_encode($response) : $response; $output .= "Response Content:\n" . $response . "\n"; }

[wxkingstar]

[lucianotonet]

Hi @wxkingstar, thanks for reporting the issue.

I made some changes in version 0.2.0, and it seems to have been fixed. Although we're still getting some validation errors, the HTTP 500 error has been fixed.
Could you try again in your environment to verify?

By the way, what tool are you using to inspect?

[wxkingstar]

I am using:
npx @modelcontextprotocol/inspector node build/index.js

[wxkingstar]

Does the current MCP implementation support inspecting the Queries under a specific request?

I am developing a functional module, and I would like the LLM to obtain the complete debugging information of this module through MCP.

[wxkingstar]

Hello, are you still there?

[lucianotonet]

Hey @wxkingstar . Yep, I'm here.

The "bug" was solved, but the support of specific queries inspection is not yet implemented.

To be honest I'm not sure if is still valid to maintain this package before the official Laravel Boot.
What you think about?

[wxkingstar]

Does Laravel have any official action plans?
Currently, the combination of Playwright MCP + Telescope MCP is very useful in AI-driven development, allowing for self-testing and self-debugging.
If this could be officially implemented, it would be fantastic.