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Update cache version and enhance MCP tools detection in session analysis #193

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Merged
rajbos merged 1 commit into from
Feb 8, 2026
Merged

Update cache version and enhance MCP tools detection in session analysis #193

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17 changes: 13 additions & 4 deletions src/extension.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -215,7 +215,7 @@ interface SessionLogData {

class CopilotTokenTracker implements vscode.Disposable {
// Cache version - increment this when making changes that require cache invalidation
private static readonly CACHE_VERSION = 14; // Comprehensive title extraction: all response item types + kind:1 updates (2026-02-07)
private static readonly CACHE_VERSION = 15; // Fix MCP tools detection in delta-based JSONL session analysis (2026-02-08)

private diagnosticsPanel?: vscode.WebviewPanel;
// Tracks whether the diagnostics panel has already received its session files
Expand Down Expand Up @@ -1613,13 +1613,22 @@ class CopilotTokenTracker implements vscode.Disposable {
// Analyze all context references from this request
this.analyzeRequestContext(request, analysis.contextReferences);

// Extract tool calls from request.response array
// Extract tool calls and MCP tools from request.response array
if (request.response && Array.isArray(request.response)) {
for (const responseItem of request.response) {
if (responseItem.kind === 'toolInvocationSerialized' || responseItem.kind === 'prepareToolInvocation') {
analysis.toolCalls.total++;
const toolName = responseItem.toolId || responseItem.toolName || responseItem.invocationMessage?.toolName || responseItem.toolSpecificData?.kind || 'unknown';
analysis.toolCalls.byTool[toolName] = (analysis.toolCalls.byTool[toolName] || 0) + 1;

// Check if this is an MCP tool by name pattern
if (this.isMcpTool(toolName)) {
analysis.mcpTools.total++;
const serverName = this.extractMcpServerName(toolName);
analysis.mcpTools.byServer[serverName] = (analysis.mcpTools.byServer[serverName] || 0) + 1;
analysis.mcpTools.byTool[toolName] = (analysis.mcpTools.byTool[toolName] || 0) + 1;
} else {
analysis.toolCalls.total++;
analysis.toolCalls.byTool[toolName] = (analysis.toolCalls.byTool[toolName] || 0) + 1;
}
}
}
}
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