cognition.ai/* flags the agent reads from initialize _meta.
const CognitionClientCapability: { BrowserPreview: "cognition.ai/browserPreview"; BrowserPreviewOpen: "cognition.ai/browserPreviewOpen"; Chains: "cognition.ai/chains"; ClipboardWrite: "cognition.ai/clipboardWrite"; DiagnosticsSessionExport: "cognition.ai/diagnosticsSessionExport"; EditorContext: "cognition.ai/editorContext"; GroupedSessionConfigOptions: "cognition.ai/groupedSessionConfigOptions"; LocalTools: "cognition.ai/localTools"; Mcp: "cognition.ai/mcp"; MessageGrouping: "cognition.ai/messageGrouping"; PartialContent: "cognition.ai/partialContent"; Plugins: "cognition.ai/plugins"; RefTagsRaw: "cognition.ai/refTagsRaw"; RequestDiagnostics: "cognition.ai/requestDiagnostics"; Revert: "cognition.ai/revert"; SessionListFolders: "cognition.ai/sessionListFolders"; Sidechains: "cognition.ai/sidechains"; StopOnReject: "cognition.ai/stopOnReject"; TerminalContext: "cognition.ai/terminalContext"; ToolCallQuestions: "cognition.ai/toolCallQuestions"; Wiki: "cognition.ai/wiki" }