ContextAnalyzer class

Analyzes context window usage and provides visualization data.

Inheritance

Constructors

ContextAnalyzer()

Properties

hashCode → int
The hash code for this object.
no setterinherited
initialized → bool
Checks whether the controller has already been initialized.
no setterinherited
isClosed → bool
Checks whether the controller has already been closed.
no setterinherited
isDisposed → bool
no setterinherited
latestAnalysis → Rxn<ContextData>
The latest context analysis result.
final
listenersLength → int
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

addListener(SintStateUpdate listener) → Disposer
Register a closure to be called when the object notifies its listeners.
inherited
addListenerId(Object? key, SintStateUpdate listener) → Disposer
inherited
analyzeContextUsage({required List<Map<String, dynamic>> messages, required String model, required int systemPromptTokens, required int neomageMdTokens, required int builtInToolTokens, required int mcpToolTokens, required int agentTokens, required int slashCommandTokens, required int skillFrontmatterTokens, required int messageTokens, required int deferredToolTokens, required int deferredBuiltinTokens, required List<MemoryFile> memoryFileDetails, required List<McpTool> mcpToolDetails, required List<AgentInfo> agentDetails, List<DeferredBuiltinTool>? deferredBuiltinDetails, List<SystemToolDetail>? systemToolDetails, List<SystemPromptSectionDetail>? systemPromptSections, SlashCommandInfo? commandInfo, SkillInfo? skillInfo, MessageBreakdown? messageBreakdownDetail, int? terminalWidth}) → Future<ContextData>
Analyzes context window usage for display.
approximateMessageBreakdown(List<Map<String, dynamic>> messages) → MessageBreakdown
Approximate token usage by message type.
buildGrid({required List<ContextCategory> categories, required int contextWindow, int? terminalWidth}) → List<List<GridSquare>>
Build the grid visualization from categories.
configure({Future<int?> countTokensWithFallback(List<Map<String, dynamic>>, List<Map<String, dynamic>>)?, int roughTokenCountEstimation(String)?, int getEffectiveContextWindowSize(String)?, int getContextWindowForModel(String)?, bool isAutoCompactEnabled()?, ApiUsage? getCurrentUsage(List<Map<String, dynamic>>)?, void logForDebugging(String)?, void logError(Object)?}) → void
containsListener(SintStateUpdate listener) → bool
inherited
countMemoryFileTokens(List<({String content, String path, String type})> memoryFiles) → Future<({List<MemoryFile> details, int neomageMdTokens})>
Count memory file tokens.
countSystemTokens(List<String> effectiveSystemPrompt) → Future<({List<SystemPromptSectionDetail> sections, int systemPromptTokens})>
Count system prompt tokens.
countToolDefinitionTokens(List<Map<String, dynamic>> tools) → Future<int>
Count tokens for a list of tool definitions.
debounce<T>(RxInterface<T> rx, void callback(T), {Duration duration = const Duration(milliseconds: 400)}) → void
Calls callback after rx stops changing for duration. Useful for search-as-you-type, form validation, etc.
inherited
dispose() → void
inherited
ever<T>(RxInterface<T> rx, void callback(T)) → void
Calls callback every time rx changes. Auto-cancels on controller disposal.
inherited
interval<T>(RxInterface<T> rx, void callback(T), {Duration duration = const Duration(seconds: 1)}) → void
Calls callback at most once per duration, ignoring intermediate changes. Useful for rate-limiting UI updates.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
once<T>(RxInterface<T> rx, void callback(T)) → void
Calls callback only the first time rx changes, then cancels.
inherited
onClose() → void
Called before onDelete method. onClose might be used to dispose resources used by the controller. Like closing events, or streams before the controller is destroyed. Or dispose objects that can potentially create some memory leaks, like TextEditingControllers, AnimationControllers. Might be useful as well to persist some data on disk.
inherited
onDelete() → void
inherited
onInit() → void
Called immediately after the widget is allocated in memory. You might use this to initialize something for the controller.
override
onReady() → void
Called 1 frame after onInit(). It is the perfect place to enter navigation events, like snackbar, dialogs, or a new route, or async request.
inherited
onStart() → void
Called at the exact moment the widget is allocated in memory. It uses an internal "callable" type, to avoid any @overrides in subclasses. This method should be internal and is required to define the lifetime cycle of the subclass.
inherited
refresh() → void
inherited
refreshGroup(Object id) → void
inherited
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that the object notifies.
inherited
removeListenerId(Object id, VoidCallback listener) → void
inherited
reportAdd(VoidCallback disposer) → void
inherited
reportRead() → void
inherited
toString() → String
A string representation of this object.
inherited
update([List<Object>? ids, bool condition = true]) → void
Notifies listeners to update the UI.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

extractSectionName(String content) → String
Extract a human-readable name from a system prompt section's content.