const log = createSubsystemLogger("agents/tools");

const BEFORE_TOOL_CALL_WRAPPED = Symbol("beforeToolCallWrapped");

const BEFORE_TOOL_CALL_DIAGNOSTIC_OPTIONS = Symbol("beforeToolCallDiagnosticOptions");

const BEFORE_TOOL_CALL_SOURCE_TOOL = Symbol("beforeToolCallSourceTool");

const BEFORE_TOOL_CALL_HOOK_FAILURE_REASON =

"Tool call blocked because before_tool_call hook failed";

const MAX_TRACKED_ADJUSTED_PARAMS = 1024;

value: hookOptions,

enumerable: false,

});

Object.defineProperty(wrappedTool, BEFORE_TOOL_CALL_SOURCE_TOOL, {

value: tool,

enumerable: false,

});

return wrappedTool;

}

}

}

export function setBeforeToolCallApprovalMode(

export function rewrapToolWithBeforeToolCallHook(

tool: AnyAgentTool,

approvalMode: "request" | "report" | undefined,

): void {

ctx?: HookContext,

options: { approvalMode?: "request" | "report"; emitDiagnostics?: boolean } = {},

): AnyAgentTool {

const taggedTool = tool as unknown as Record<symbol, unknown>;

const options = taggedTool[BEFORE_TOOL_CALL_DIAGNOSTIC_OPTIONS];

if (options && typeof options === "object") {

(options as BeforeToolCallWrapperOptions).approvalMode = approvalMode;

}

const source = taggedTool[BEFORE_TOOL_CALL_SOURCE_TOOL];

return wrapToolWithBeforeToolCallHook(

source && typeof source === "object" ? (source as AnyAgentTool) : tool,

ctx,

options,

);

}

export function copyBeforeToolCallHookMarker(source: AnyAgentTool, target: AnyAgentTool): void {

value: true,

enumerable: true,

});

const taggedSource = source as unknown as Record<symbol, unknown>;

const sourceTool = taggedSource[BEFORE_TOOL_CALL_SOURCE_TOOL];

if (sourceTool && typeof sourceTool === "object") {

Object.defineProperty(target, BEFORE_TOOL_CALL_SOURCE_TOOL, {

value: sourceTool,

enumerable: false,

});

}

}

export function consumeAdjustedParamsForToolCall(toolCallId: string, runId?: string): unknown {

export const testing = {

BEFORE_TOOL_CALL_DIAGNOSTIC_OPTIONS,

BEFORE_TOOL_CALL_SOURCE_TOOL,

BEFORE_TOOL_CALL_WRAPPED,

buildAdjustedParamsKey,

adjustedParamsByToolCallId,