Rebuilt how AI Studio knows what a model can do

.gitignore

@@ -172,3 +172,6 @@ orleans.codegen.cs
 
 # Tauri generated schemas/manifests
 /runtime/gen/
+
+# Ignore what a failing snapshot test leaves behind for comparison:
+/app/Tests/Models/Corpus/CapabilitySnapshot.actual.txt

AGENTS.md

@@ -80,7 +80,21 @@ Notes:
   troubleshooting, no matter whether it came from the MCP server or from the user.
 
 ### Running Tests
-Currently, no automated test suite exists in the repository.
+The .NET tests live in `app/Tests`, a single NUnit project that holds the tests of every area; each
+area gets its own folder and namespace below it rather than a project of its own. Agents run them
+through the IDE for the same reason they build there:
+
+```
+mcp__rider__execute_terminal_command  command: "cd app/Tests && dotnet test"
+```
+
+An assembly-wide `[SetUpFixture]` in `app/Tests/TestHost.cs` fills the static application state that
+the app itself only fills while starting up, `Program.LOGGER_FACTORY` above all. Types that
+initialize a static logger from it — `Settings.Provider` among them — otherwise die in their type
+initializer before the first assertion. Prefer writing new code so that it does not reach for such
+statics at all.
+
+The Rust tests run with `cargo test` in `runtime/`, through the `rustrover` MCP server.
 
 ## Architecture Details
 

app/MindWork AI Studio.sln

@@ -10,6 +10,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SharedTools", "SharedTools\
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SourceGeneratedMappings", "SourceGeneratedMappings\SourceGeneratedMappings.csproj", "{4D7141D5-9C22-4D85-B748-290D15FF484C}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Tests", "Tests\Tests.csproj", "{CD46329B-D135-4594-9A70-55D3480F8FEE}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -36,6 +38,10 @@ Global
 		{4D7141D5-9C22-4D85-B748-290D15FF484C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{4D7141D5-9C22-4D85-B748-290D15FF484C}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{4D7141D5-9C22-4D85-B748-290D15FF484C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CD46329B-D135-4594-9A70-55D3480F8FEE}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CD46329B-D135-4594-9A70-55D3480F8FEE}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CD46329B-D135-4594-9A70-55D3480F8FEE}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CD46329B-D135-4594-9A70-55D3480F8FEE}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 	EndGlobalSection

app/MindWork AI Studio/Assistants/I18N/allTexts.lua

@@ -3571,9 +3571,15 @@ UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T1849313532"] = "Type your
 -- Your Prompt (use selected instance '{0}', provider '{1}')
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T1967611328"] = "Your Prompt (use selected instance '{0}', provider '{1}')"
 
+-- approx. {0} of {1} tokens
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T1992478915"] = "approx. {0} of {1} tokens"
+
 -- Code
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T2036185364"] = "Code"
 
+-- plus {0} image(s), which is more than the {1} this model accepts
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T2059172343"] = "plus {0} image(s), which is more than the {1} this model accepts"
+
 -- Italic
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T2377171085"] = "Italic"
 
@@ -3595,15 +3601,21 @@ UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T2991985411"] = "Delete th
 -- Move Chat to Workspace
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T3045856778"] = "Move Chat to Workspace"
 
+-- {0} tokens
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T3244065777"] = "{0} tokens"
+
+-- plus {0} image(s), which cannot be counted
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T3619858297"] = "plus {0} image(s), which cannot be counted"
+
 -- Select a provider first
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T3654197869"] = "Select a provider first"
 
--- Estimated amount of tokens:
-UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T377990776"] = "Estimated amount of tokens:"
-
 -- Start new chat in workspace '{0}'
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T3928697643"] = "Start new chat in workspace '{0}'"
 
+-- {0} of {1} tokens
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T3996190985"] = "{0} of {1} tokens"
+
 -- Start temporary chat
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T4113970938"] = "Start temporary chat"
 
@@ -3619,6 +3631,9 @@ UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T636393754"] = "Move the c
 -- Show your workspaces
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T733672375"] = "Show your workspaces"
 
+-- approx. {0} tokens
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATCOMPONENT::T857715435"] = "approx. {0} tokens"
+
 -- Create template from current chat
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::CHATTEMPLATESELECTION::T1112722156"] = "Create template from current chat"
 
@@ -5014,6 +5029,15 @@ UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::THIRDPARTYCOMPONENT::T1392042694"] = "Ope
 -- License:
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::THIRDPARTYCOMPONENT::T1908172666"] = "License:"
 
+-- The vendor of this model publishes no tokenizer file and counts through their API instead ({0}). AI Studio therefore estimates the token count with its built-in tokenizer.
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::TOKENIZERHINT::T3965340739"] = "The vendor of this model publishes no tokenizer file and counts through their API instead ({0}). AI Studio therefore estimates the token count with its built-in tokenizer."
+
+-- This model uses OpenAI's {0} encoding, which does not come as a tokenizer.json file. AI Studio therefore estimates the token count with its built-in tokenizer.
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::TOKENIZERHINT::T466506475"] = "This model uses OpenAI's {0} encoding, which does not come as a tokenizer.json file. AI Studio therefore estimates the token count with its built-in tokenizer."
+
+-- This model uses the tokenizer of {0}. Download its tokenizer.json file and select it below to count exactly instead of estimating.
+UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::TOKENIZERHINT::T924854143"] = "This model uses the tokenizer of {0}. Download its tokenizer.json file and select it below to count exactly instead of estimating."
+
 -- Tool selection is hidden
 UI_TEXT_CONTENT["AISTUDIO::COMPONENTS::TOOLDEFAULTSCONFIGURATION::T2096103917"] = "Tool selection is hidden"
 
@@ -6901,15 +6925,27 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T1108876344"] = "Hide Expert
 -- Failed to store the API key in the operating system. The message was: {0}. Please try again.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T1122745046"] = "Failed to store the API key in the operating system. The message was: {0}. Please try again."
 
+-- Where the stored numbers do not match your installation, state yours here. This matters most for self-hosted models: they run with whatever their operator configured, which the model card cannot know.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T115770087"] = "Where the stored numbers do not match your installation, state yours here. This matters most for self-hosted models: they run with whatever their operator configured, which the model card cannot know."
+
+-- Per message
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T1316004715"] = "Per message"
+
 -- API Key
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T1324664716"] = "API Key"
 
 -- Create account
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T1356621346"] = "Create account"
 
+-- Per request
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T1363121973"] = "Per request"
+
 -- Failed to validate the selected tokenizer. Please try again.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T1384494471"] = "Failed to validate the selected tokenizer. Please try again."
 
+-- Override Model Limits
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T1518445332"] = "Override Model Limits"
+
 -- Load models
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T15352225"] = "Load models"
 
@@ -6955,6 +6991,9 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2029870721"] = "The current
 -- Additional API parameters must form a JSON object.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2051143391"] = "Additional API parameters must form a JSON object."
 
+-- Nobody has stated a window for this model. Left empty, the chat counts the tokens of a conversation without saying what they may grow to.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2138841031"] = "Nobody has stated a window for this model. Left empty, the chat counts the tokens of a conversation without saying what they may grow to."
+
 -- Use detected model behavior: {0}.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2141072961"] = "Use detected model behavior: {0}."
 
@@ -6976,6 +7015,9 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2439094236"] = "Failed to r
 -- Invalid tokenizer:
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2448302543"] = "Invalid tokenizer:"
 
+-- Vendors state one of the two, the other, or neither. Whichever is smaller decides how many images one message may carry; an empty field states nothing.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2519267200"] = "Vendors state one of the two, the other, or neither. Whichever is smaller decides how many images one message may carry; an empty field states nothing."
+
 -- Enabled
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2626085950"] = "Enabled"
 
@@ -7003,6 +7045,9 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2842060373"] = "Instance Na
 -- On by default
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2843289040"] = "On by default"
 
+-- No limit known, so AI Studio does not stop anybody from attaching more.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T2986951856"] = "No limit known, so AI Studio does not stop anybody from attaching more."
+
 -- No reasoning (thinking) capability.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T301695429"] = "No reasoning (thinking) capability."
 
@@ -7012,6 +7057,12 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T3079061205"] = "Please be c
 -- Reasoning (thinking) is available and on unless additional API parameters disable it.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T310420667"] = "Reasoning (thinking) is available and on unless additional API parameters disable it."
 
+-- Detected: {0} tokens. Leave the field empty to use that.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T311903903"] = "Detected: {0} tokens. Leave the field empty to use that."
+
+-- At most {0} images at once.
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T3187806707"] = "At most {0} images at once."
+
 -- Disabled
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T3217987877"] = "Disabled"
 
@@ -7048,6 +7099,12 @@ UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T3804472591"] = "Duplicate k
 -- Override Model Capabilities
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T3904244586"] = "Override Model Capabilities"
 
+-- Images
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T401363915"] = "Images"
+
+-- Context window in tokens
+UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T4083607555"] = "Context window in tokens"
+
 -- Currently, we cannot query the models for the selected provider and/or host. Therefore, please enter the model name manually.
 UI_TEXT_CONTENT["AISTUDIO::DIALOGS::PROVIDERDIALOG::T4116737656"] = "Currently, we cannot query the models for the selected provider and/or host. Therefore, please enter the model name manually."
 
@@ -11422,6 +11479,9 @@ UI_TEXT_CONTENT["AISTUDIO::TOOLS::PLUGINSYSTEM::PLUGINLANGUAGE::T4112586014"] =
 -- The field LANG_NAME does not exist or is not a valid string.
 UI_TEXT_CONTENT["AISTUDIO::TOOLS::PLUGINSYSTEM::PLUGINLANGUAGE::T4204700759"] = "The field LANG_NAME does not exist or is not a valid string."
 
+-- The table MODELS does not exist or is using an invalid syntax.
+UI_TEXT_CONTENT["AISTUDIO::TOOLS::PLUGINSYSTEM::PLUGINMODELS::T976664425"] = "The table MODELS does not exist or is using an invalid syntax."
+
 -- Artists
 UI_TEXT_CONTENT["AISTUDIO::TOOLS::PLUGINSYSTEM::PLUGINTARGETGROUPEXTENSIONS::T1142248183"] = "Artists"
 
@@ -11464,6 +11524,9 @@ UI_TEXT_CONTENT["AISTUDIO::TOOLS::PLUGINSYSTEM::PLUGINTARGETGROUPEXTENSIONS::T62
 -- Software developers
 UI_TEXT_CONTENT["AISTUDIO::TOOLS::PLUGINSYSTEM::PLUGINTARGETGROUPEXTENSIONS::T831424531"] = "Software developers"
 
+-- Model plugin
+UI_TEXT_CONTENT["AISTUDIO::TOOLS::PLUGINSYSTEM::PLUGINTYPEEXTENSIONS::T1507522553"] = "Model plugin"
+
 -- Theme plugin
 UI_TEXT_CONTENT["AISTUDIO::TOOLS::PLUGINSYSTEM::PLUGINTYPEEXTENSIONS::T1682350097"] = "Theme plugin"
 

app/MindWork AI Studio/Assistants/VisualBriefing/VisualBriefingBuildOrchestrator.Inputs.cs

@@ -267,17 +267,31 @@ source.Kind is VisualBriefingSourceKind.VISUAL_ASSET ||
             FileTypes.IsAllowedPath(source.Path, FileTypes.IMAGE)).ToArray();
         if (imageSources.Length == 0)
             return;
-        var capabilities = provider.GetModelCapabilities();
+        var profile = provider.GetModelProfile();
         var acceptsImages = imageSources.Length == 1
-            ? capabilities.Contains(Capability.SINGLE_IMAGE_INPUT) ||
-              capabilities.Contains(Capability.MULTIPLE_IMAGE_INPUT)
-            : capabilities.Contains(Capability.MULTIPLE_IMAGE_INPUT);
+            ? profile.HasAny(Capability.SINGLE_IMAGE_INPUT | Capability.MULTIPLE_IMAGE_INPUT)
+            : profile.Has(Capability.MULTIPLE_IMAGE_INPUT);
         if (!acceptsImages)
             throw new VisualBriefingBuildException(
                 VisualBriefingFailureCode.MODEL_CAPABILITY_MISSING,
                 VisualBriefingBuildStage.SOURCE_PREPARATION,
                 "The selected model cannot process the number of source images and visual assets.",
-                $"ImageCount={imageSources.Length}; SingleImage={capabilities.Contains(Capability.SINGLE_IMAGE_INPUT)}; MultipleImages={capabilities.Contains(Capability.MULTIPLE_IMAGE_INPUT)}.");
+                $"ImageCount={imageSources.Length}; SingleImage={profile.Has(Capability.SINGLE_IMAGE_INPUT)}; MultipleImages={profile.Has(Capability.MULTIPLE_IMAGE_INPUT)}.");
+
+        //
+        // And then the number, where a vendor has stated one. Without it, "takes several images"
+        // is all the check above can ask, and a briefing of two hundred pictures passes it only to
+        // be refused by the provider after everything has been read, uploaded and paid for.
+        //
+        // No limit is invented where none is documented. A model whose vendor says nothing keeps
+        // the answer it has always had, which is that several means several.
+        //
+        if (profile.Images.MaxInOneMessage is { } allowed && imageSources.Length > allowed)
+            throw new VisualBriefingBuildException(
+                VisualBriefingFailureCode.MODEL_CAPABILITY_MISSING,
+                VisualBriefingBuildStage.SOURCE_PREPARATION,
+                $"The selected model accepts at most {allowed} images at once, and this briefing uses {imageSources.Length}.",
+                $"ImageCount={imageSources.Length}; MaxPerMessage={profile.Images.MaxPerMessage}; MaxPerRequest={profile.Images.MaxPerRequest}.");
     }
 
     /// <summary>