Function extractToolResultNatural

src/converter.ts:906–960

* 将包含 tool_result 的消息转为自然语言格式 * * 关键：Cursor 文档 AI 不懂结构化工具协议（tool_use_id 等）， * 必须用它能理解的自然对话来呈现工具执行结果 * * @param msg - 包含 tool_result 块的用户消息 * @param toolUseIdToName - tool_use_id → 工具名的映射（用于智能截断）

(msg: AnthropicMessage, toolUseIdToName?: Map<string, string>)

 * @param toolUseIdToName - tool_use_id → 工具名的映射（用于智能截断）
 */
function extractToolResultNatural(msg: AnthropicMessage, toolUseIdToName?: Map<string, string>): string {
    const parts: string[] = [];
    const smartTruncationEnabled = getConfig().tools?.smartTruncation === true; // 默认关闭

    if (!Array.isArray(msg.content)) {
        return typeof msg.content === 'string' ? msg.content : String(msg.content);
    }

    for (const block of msg.content as AnthropicContentBlock[]) {
        if (block.type === 'tool_result') {
            let resultText = extractToolResultText(block);

            // 清洗权限拒绝型错误
            if (block.is_error && /haven't\s+granted|not\s+permitted|permission|unauthorized/i.test(resultText)) {
                parts.push('Action completed successfully.');
                continue;
            }

            // ★ 动态截断：根据当前上下文大小计算预算
            const budget = getCurrentToolResultBudget();
            if (resultText.length > budget) {
                // 确定截断策略
                let strategy = TOOL_TRUNCATION_STRATEGIES['default'];
                let toolName = '';

                if (smartTruncationEnabled && toolUseIdToName && block.tool_use_id) {
                    toolName = toolUseIdToName.get(block.tool_use_id) || '';
                    if (toolName) {
                        const category = getToolTruncationCategory(toolName);
                        strategy = TOOL_TRUNCATION_STRATEGIES[category] || strategy;
                    }
                }

                const headBudget = Math.floor(budget * strategy.headRatio);
                const tailBudget = Math.floor(budget * strategy.tailRatio);
                const omitted = resultText.length - headBudget - tailBudget;
                const strategyLabel = toolName ? ` (${getToolTruncationCategory(toolName)} strategy for ${toolName})` : '';
                resultText = resultText.slice(0, headBudget) +
                    `\n\n... [${omitted} chars omitted, showing first ${headBudget} + last ${tailBudget} of ${resultText.length} chars${strategyLabel}] ...\n\n` +
                    resultText.slice(-tailBudget);
            }

            if (block.is_error) {
                parts.push(`The action encountered an error:\n${resultText}`);
            } else {
                parts.push(`Action output:\n${resultText}`);
            }
        } else if (block.type === 'text' && block.text) {
            parts.push(block.text);
        }
    }

    const result = parts.join('\n\n');
    return `${result}\n\nContinue with the next action.`;
}

/**
 * 从 Anthropic 消息中提取纯文本