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Feature/context token counter #608

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Merged
mrubens merged 4 commits into from
Jan 28, 2025
Merged

Feature/context token counter #608

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e668169
feat: Add conversation context token counter
MuriloFP Jan 28, 2025
97fe13d
fix: Prevent context token counter from resetting on failed API calls
MuriloFP Jan 28, 2025
5311e0c
fix: Make context token counter more reliable
MuriloFP Jan 28, 2025
1ba632f
Update webview-ui/src/components/chat/TaskHeader.tsx
MuriloFP Jan 28, 2025
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23 changes: 23 additions & 0 deletions src/shared/getApiMetrics.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ interface ApiMetrics {
totalCacheWrites?: number
totalCacheReads?: number
totalCost: number
contextTokens: number // Total tokens in conversation (last message's tokensIn + tokensOut)
}

/**
Expand All @@ -32,8 +33,22 @@ export function getApiMetrics(messages: ClineMessage[]): ApiMetrics {
totalCacheWrites: undefined,
totalCacheReads: undefined,
totalCost: 0,
contextTokens: 0,
}

// Find the last api_req_started message that has valid token information
const lastApiReq = [...messages].reverse().find((message) => {
if (message.type === "say" && message.say === "api_req_started" && message.text) {
try {
const parsedData = JSON.parse(message.text)
return typeof parsedData.tokensIn === "number" && typeof parsedData.tokensOut === "number"
} catch {
return false
}
}
return false
})

messages.forEach((message) => {
if (message.type === "say" && message.say === "api_req_started" && message.text) {
try {
Expand All @@ -55,6 +70,14 @@ export function getApiMetrics(messages: ClineMessage[]): ApiMetrics {
if (typeof cost === "number") {
result.totalCost += cost
}

// If this is the last api request, use its tokens for context size
if (message === lastApiReq) {
// Only update context tokens if both input and output tokens are non-zero
if (tokensIn > 0 && tokensOut > 0) {
result.contextTokens = tokensIn + tokensOut
}
}
} catch (error) {
console.error("Error parsing JSON:", error)
}
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1 change: 1 addition & 0 deletions webview-ui/src/components/chat/ChatView.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -915,6 +915,7 @@ const ChatView = ({ isHidden, showAnnouncement, hideAnnouncement, showHistoryVie
cacheWrites={apiMetrics.totalCacheWrites}
cacheReads={apiMetrics.totalCacheReads}
totalCost={apiMetrics.totalCost}
contextTokens={apiMetrics.contextTokens}
onClose={handleTaskCloseButtonClick}
/>
) : (
Expand Down
9 changes: 9 additions & 0 deletions webview-ui/src/components/chat/TaskHeader.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ interface TaskHeaderProps {
cacheWrites?: number
cacheReads?: number
totalCost: number
contextTokens: number
onClose: () => void
}

Expand All @@ -27,6 +28,7 @@ const TaskHeader: React.FC<TaskHeaderProps> = ({
cacheWrites,
cacheReads,
totalCost,
contextTokens,
onClose,
}) => {
const { apiConfiguration } = useExtensionState()
Expand Down Expand Up @@ -272,6 +274,13 @@ const TaskHeader: React.FC<TaskHeaderProps> = ({
{!isCostAvailable && <ExportButton />}
</div>

<div style={{ display: "flex", alignItems: "center", gap: "4px", flexWrap: "wrap" }}>
<span style={{ fontWeight: "bold" }}>Context:</span>
<span style={{ display: "flex", alignItems: "center", gap: "3px" }}>
{formatLargeNumber(contextTokens || 0)}
</span>
</div>

{shouldShowPromptCacheInfo && (cacheReads !== undefined || cacheWrites !== undefined) && (
<div style={{ display: "flex", alignItems: "center", gap: "4px", flexWrap: "wrap" }}>
<span style={{ fontWeight: "bold" }}>Cache:</span>
Expand Down
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