Error when trying to use Tools

[ermiri]

I am trying to run a prompt which invokes a tool call:
list all appointment types

It calls the right Tool named 'appointment_type_all' and get result, but it fails with the error:
Client error: POST https://api.openai.com/v1/chat/completions` resulted in a 400 Bad Request response:\n{\n "error": {\n "message": "Missing required parameter: 'messages[5].content[0].type'.",\n "type": "invalid_request (truncated...)`

You can check the history:
[ { "role": "user", "content": "list all appointment types" }, { "tool_calls": [ { "id": "call_eVIlLw07omPjkB7sG2TLdwHC", "type": "function", "function": { "name": "appointment_type_all", "arguments": "{}" } } ], "role": "assistant", "content": null, "usage": { "input_tokens": 750, "output_tokens": 13 }, "type": "tool_call", "tools": [ { "name": "appointment_type_all", "description": "Retrieve all appointment types from system or database.", "inputs": {}, "callId": "call_eVIlLw07omPjkB7sG2TLdwHC", "result": [ { "id": 1, "application_id": 1, "created_by": null, "created_at": "2024-07-25T14:01:06.000000Z", "updated_at": "2024-07-25T14:01:06.000000Z", "disabled": 0, "name": "Control", "is_inpatient": 0, "default_duration": null, "color": "#000000", "class_color": null, "description": null, "service_items_list": null }, { "id": 2, "application_id": 1, "created_by": null, "created_at": "2024-07-25T14:01:06.000000Z", "updated_at": "2024-07-25T14:01:06.000000Z", "disabled": 0, "name": "Konsulte", "is_inpatient": 0, "default_duration": null, "color": "#000000", "class_color": null, "description": null, "service_items_list": null } ] } ] }, { "role": "user", "content": null, "type": "tool_call_result", "tools": [ { "name": "appointment_type_all", "description": "Retrieve all appointment types from system or database.", "inputs": {}, "callId": "call_eVIlLw07omPjkB7sG2TLdwHC", "result": [ { "id": 1, "application_id": 1, "created_by": null, "created_at": "2024-07-25T14:01:06.000000Z", "updated_at": "2024-07-25T14:01:06.000000Z", "disabled": 0, "name": "Control", "is_inpatient": 0, "default_duration": null, "color": "#000000", "class_color": null, "description": null, "service_items_list": null }, { "id": 2, "application_id": 1, "created_by": null, "created_at": "2024-07-25T14:01:06.000000Z", "updated_at": "2024-07-25T14:01:06.000000Z", "disabled": 0, "name": "Konsulte", "is_inpatient": 0, "default_duration": null, "color": "#000000", "class_color": null, "description": null, "service_items_list": null } ] } ] } ]

• Version 1.9.29

[ilvalerione]

Can you send the stacktrace?

[ermiri]

[2025-05-12 12:54:57] local.ERROR: Client error: POST https://api.openai.com/v1/chat/completions` resulted in a 400 Bad Request response:
{
"error": {
"message": "Missing required parameter: 'messages[5].content[0].type'.",
"type": "invalid_request (truncated...)
{"userId":1,"exception":"[object] (GuzzleHttp\Exception\ClientException(code: 400): Client error: POST https://api.openai.com/v1/chat/completions resulted in a 400 Bad Request response:
{
"error": {
"message": "Missing required parameter: 'messages[5].content[0].type'.",
"type": "invalid_request (truncated...)
at C:\xampp\htdocs\erp\acs\vendor\guzzlehttp\guzzle\src\Exception\RequestException.php:113)
[stacktrace]
#0 C:\xampp\htdocs\erp\acs\vendor\guzzlehttp\guzzle\src\Middleware.php(72): GuzzleHttp\Exception\RequestException::create(Object(GuzzleHttp\Psr7\Request), Object(GuzzleHttp\Psr7\Response), NULL, Array, NULL)
#1 C:\xampp\htdocs\erp\acs\vendor\guzzlehttp\promises\src\Promise.php(209): GuzzleHttp\Middleware::GuzzleHttp\{closure}(Object(GuzzleHttp\Psr7\Response))
#2 C:\xampp\htdocs\erp\acs\vendor\guzzlehttp\promises\src\Promise.php(158): GuzzleHttp\Promise\Promise::callHandler(1, Object(GuzzleHttp\Psr7\Response), NULL)
#3 C:\xampp\htdocs\erp\acs\vendor\guzzlehttp\promises\src\TaskQueue.php(52): GuzzleHttp\Promise\Promise::GuzzleHttp\Promise\{closure}()
#4 C:\xampp\htdocs\erp\acs\vendor\guzzlehttp\promises\src\Promise.php(251): GuzzleHttp\Promise\TaskQueue->run(true)
#5 C:\xampp\htdocs\erp\acs\vendor\guzzlehttp\promises\src\Promise.php(227): GuzzleHttp\Promise\Promise->invokeWaitFn()
#6 C:\xampp\htdocs\erp\acs\vendor\guzzlehttp\promises\src\Promise.php(272): GuzzleHttp\Promise\Promise->waitIfPending()
#7 C:\xampp\htdocs\erp\acs\vendor\guzzlehttp\promises\src\Promise.php(229): GuzzleHttp\Promise\Promise->invokeWaitList()
#8 C:\xampp\htdocs\erp\acs\vendor\guzzlehttp\promises\src\Promise.php(69): GuzzleHttp\Promise\Promise->waitIfPending()
#9 C:\xampp\htdocs\erp\acs\vendor\guzzlehttp\guzzle\src\Client.php(189): GuzzleHttp\Promise\Promise->wait()
#10 C:\xampp\htdocs\erp\acs\vendor\guzzlehttp\guzzle\src\ClientTrait.php(95): GuzzleHttp\Client->request('POST', 'chat/completion...', Array)
#11 C:\xampp\htdocs\erp\acs\vendor\inspector-apm\neuron-ai\src\Providers\OpenAI\HandleChat.php(36): GuzzleHttp\Client->post('chat/completion...', Array)
#12 C:\xampp\htdocs\erp\acs\vendor\inspector-apm\neuron-ai\src\HandleChat.php(41): NeuronAI\Providers\OpenAI\OpenAI->chat(Array)
#13 C:\xampp\htdocs\erp\acs\vendor\inspector-apm\neuron-ai\src\HandleChat.php(52): NeuronAI\Agent->chat(Array)
#14 C:\xampp\htdocs\erp\packages\ermirshehaj\ai\src\Services\Neuron\Agent.php(102): NeuronAI\Agent->chat(Object(NeuronAI\Chat\Messages\UserMessage))
#15 C:\xampp\htdocs\erp\packages\ermirshehaj\ai\src\Models\AiChat.php(244): ErmirShehaj\Ai\Services\Neuron\Agent->message('list all appoin...')
#16 C:\xampp\htdocs\erp\packages\ermirshehaj\ai\src\Http\Controllers\ChatController.php(210): ErmirShehaj\Ai\Models\AiChat->sendMessage('list all appoin...')
#17 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Routing\Controller.php(54): ErmirShehaj\Ai\Http\Controllers\ChatController->sendMessage(Object(Illuminate\Http\Request))
#18 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Routing\ControllerDispatcher.php(43): Illuminate\Routing\Controller->callAction('sendMessage', Array)
#19 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Routing\Route.php(259): Illuminate\Routing\ControllerDispatcher->dispatch(Object(Illuminate\Routing\Route), Object(ErmirShehaj\Ai\Http\Controllers\ChatController), 'sendMessage')
#20 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Routing\Route.php(205): Illuminate\Routing\Route->runController()
#21 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Routing\Router.php(798): Illuminate\Routing\Route->run()
#22 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(141): Illuminate\Routing\Router->Illuminate\Routing\{closure}(Object(Illuminate\Http\Request))
#23 C:\xampp\htdocs\erp\packages\ermirshehaj\core\src\Http\Middleware\Localization.php(47): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#24 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): ErmirShehaj\Core\Http\Middleware\Localization->handle(Object(Illuminate\Http\Request), Object(Closure))
#25 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Routing\Middleware\SubstituteBindings.php(50): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#26 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Illuminate\Routing\Middleware\SubstituteBindings->handle(Object(Illuminate\Http\Request), Object(Closure))
#27 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Auth\Middleware\Authenticate.php(57): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#28 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Illuminate\Auth\Middleware\Authenticate->handle(Object(Illuminate\Http\Request), Object(Closure))
#29 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\VerifyCsrfToken.php(78): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#30 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle(Object(Illuminate\Http\Request), Object(Closure))
#31 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\View\Middleware\ShareErrorsFromSession.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#32 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Illuminate\View\Middleware\ShareErrorsFromSession->handle(Object(Illuminate\Http\Request), Object(Closure))
#33 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Session\Middleware\StartSession.php(121): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#34 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Session\Middleware\StartSession.php(64): Illuminate\Session\Middleware\StartSession->handleStatefulRequest(Object(Illuminate\Http\Request), Object(Illuminate\Session\Store), Object(Closure))
#35 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Illuminate\Session\Middleware\StartSession->handle(Object(Illuminate\Http\Request), Object(Closure))
#36 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#37 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle(Object(Illuminate\Http\Request), Object(Closure))
#38 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Cookie\Middleware\EncryptCookies.php(67): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#39 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Illuminate\Cookie\Middleware\EncryptCookies->handle(Object(Illuminate\Http\Request), Object(Closure))
#40 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(116): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#41 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Routing\Router.php(797): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#42 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Routing\Router.php(776): Illuminate\Routing\Router->runRouteWithinStack(Object(Illuminate\Routing\Route), Object(Illuminate\Http\Request))
#43 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Routing\Router.php(740): Illuminate\Routing\Router->runRoute(Object(Illuminate\Http\Request), Object(Illuminate\Routing\Route))
#44 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Routing\Router.php(729): Illuminate\Routing\Router->dispatchToRoute(Object(Illuminate\Http\Request))
#45 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php(200): Illuminate\Routing\Router->dispatch(Object(Illuminate\Http\Request))
#46 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(141): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}(Object(Illuminate\Http\Request))
#47 C:\xampp\htdocs\erp\acs\vendor\livewire\livewire\src\DisableBrowserCache.php(19): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#48 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Livewire\DisableBrowserCache->handle(Object(Illuminate\Http\Request), Object(Closure))
#49 C:\xampp\htdocs\erp\packages\ermirshehaj\core\src\Http\Middleware\Redirects.php(69): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#50 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): ErmirShehaj\Core\Http\Middleware\Redirects->handle(Object(Illuminate\Http\Request), Object(Closure))
#51 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#52 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull.php(31): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle(Object(Illuminate\Http\Request), Object(Closure))
#53 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull->handle(Object(Illuminate\Http\Request), Object(Closure))
#54 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#55 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\TrimStrings.php(40): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle(Object(Illuminate\Http\Request), Object(Closure))
#56 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Illuminate\Foundation\Http\Middleware\TrimStrings->handle(Object(Illuminate\Http\Request), Object(Closure))
#57 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\ValidatePostSize.php(27): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#58 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Illuminate\Foundation\Http\Middleware\ValidatePostSize->handle(Object(Illuminate\Http\Request), Object(Closure))
#59 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance.php(86): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#60 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance->handle(Object(Illuminate\Http\Request), Object(Closure))
#61 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Http\Middleware\HandleCors.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#62 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Illuminate\Http\Middleware\HandleCors->handle(Object(Illuminate\Http\Request), Object(Closure))
#63 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Http\Middleware\TrustProxies.php(39): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#64 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(180): Illuminate\Http\Middleware\TrustProxies->handle(Object(Illuminate\Http\Request), Object(Closure))
#65 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php(116): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}(Object(Illuminate\Http\Request))
#66 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php(175): Illuminate\Pipeline\Pipeline->then(Object(Closure))
#67 C:\xampp\htdocs\erp\acs\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php(144): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter(Object(Illuminate\Http\Request))
#68 C:\xampp\htdocs\erp\acs\public\index.php(51): Illuminate\Foundation\Http\Kernel->handle(Object(Illuminate\Http\Request))
#69 {main}
"}
`

[ilvalerione]

The error from Anthropic point to an error in the message "5", but there are just three messages on the chat history you sent above.

[ermiri]

I found what's going on.
My Agents use the same controllers/models methods as a normal user, while almost on these methods i return an array or a collection.
Your package store the result in the same way they are returned by the method, in my case it look like this:

"result": [ { "id": 1, "name": "test" } ]

This does not work in neuron-ai but if i convert this to a json string like:

"result": "[{\"id\":1,\"name\":\"test\"}]" => it works!

I have fixed it in my implementation(converting data to json string) but it would be good if the package will handle this situation as long as the history is saved correctly.

Thank you

[ilvalerione]

If the tool returns an array it should be fine for Neuron.

But "result": [ { "id": 1, "name": "test" } ] it seems javascript not PHP.

[ermiri]

I have extracted it from the history file. You can check it here(a copy/paste content from history file):

[ { "role": "user", "content": "list all appointment types" }, { "tool_calls": [ { "id": "call_eVIlLw07omPjkB7sG2TLdwHC", "type": "function", "function": { "name": "appointment_type_all", "arguments": "{}" } } ], "role": "assistant", "content": null, "usage": { "input_tokens": 750, "output_tokens": 13 }, "type": "tool_call", "tools": [ { "name": "appointment_type_all", "description": "Retrieve all appointment types from system or database.", "inputs": {}, "callId": "call_eVIlLw07omPjkB7sG2TLdwHC", "result": [ { "id": 1, "application_id": 1, "created_by": null, "created_at": "2024-07-25T14:01:06.000000Z", "updated_at": "2024-07-25T14:01:06.000000Z", "disabled": 0, "name": "Control", "is_inpatient": 0, "default_duration": null, "color": "#000000", "class_color": null, "description": null, "service_items_list": null }, { "id": 2, "application_id": 1, "created_by": null, "created_at": "2024-07-25T14:01:06.000000Z", "updated_at": "2024-07-25T14:01:06.000000Z", "disabled": 0, "name": "Konsulte", "is_inpatient": 0, "default_duration": null, "color": "#000000", "class_color": null, "description": null, "service_items_list": null } ] } ] }, { "role": "user", "content": null, "type": "tool_call_result", "tools": [ { "name": "appointment_type_all", "description": "Retrieve all appointment types from system or database.", "inputs": {}, "callId": "call_eVIlLw07omPjkB7sG2TLdwHC", "result": [ { "id": 1, "application_id": 1, "created_by": null, "created_at": "2024-07-25T14:01:06.000000Z", "updated_at": "2024-07-25T14:01:06.000000Z", "disabled": 0, "name": "Control", "is_inpatient": 0, "default_duration": null, "color": "#000000", "class_color": null, "description": null, "service_items_list": null }, { "id": 2, "application_id": 1, "created_by": null, "created_at": "2024-07-25T14:01:06.000000Z", "updated_at": "2024-07-25T14:01:06.000000Z", "disabled": 0, "name": "Konsulte", "is_inpatient": 0, "default_duration": null, "color": "#000000", "class_color": null, "description": null, "service_items_list": null } ] } ] } ]

You can see here how neuron-ai store the message.

[ilvalerione]

When it is like so, does Anthropic throw an error? It seems in the same format of the rest of the file.

[ermiri]

I am testing on OpenAI and it shows the error i am reporting above:
local.ERROR: Client error: POST [https://api.openai.com/v1/chat/completions](https://api.openai.com/v1/chat/completions%60) resulted in a 400 Bad Request response:
{
"error": {
"message": "Missing required parameter: 'messages[5].content[0].type'.",
"type": "invalid_request (truncated...)
{"userId":1,"exception":"[object] (GuzzleHttp\Exception\ClientException(code: 400): Client error: POST https://api.openai.com/v1/chat/completions resulted in a 400 Bad Request response:
{
"error": {
"message": "Missing required parameter: 'messages[5].content[0].type'.",
"type": "invalid_request (truncated...)`

But as i told, if i return(from the php methods) the result as json string, it works.

[ilvalerione]

Fixed by 1.9.36

You can now return string, array, or object with "__toString" method. If the result format isn't convertible to string it will fires an exception with an explicit message.