bump 1.3.5

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "@ztimson/ai-utils",
-	"version": "1.3.1",
+	"version": "1.3.5",
 	"description": "AI Utility library",
 	"author": "Zak Timson",
 	"license": "MIT",

src/antrhopic.ts

@@ -21,10 +21,10 @@ export class Anthropic extends LLMProvider {
 				messages.push(<any>{timestamp, ...h});
 			} else {
 				const textContent = h.content?.filter((c: any) => c.type == 'text').map((c: any) => c.text).join('\n\n');
-				if(textContent) messages.push({role: h.role, content: textContent, timestamp: timestamp});
+				if(textContent) messages.push({role: h.role, content: textContent, timestamp: timestamp, duration: h.duration, tps: h.tps});
 				h.content.forEach((c: any) => {
 					if(c.type == 'tool_use') {
-						messages.push({role: 'tool', id: c.id, name: c.name, args: c.input, timestamp: c.timestamp, content: undefined});
+						messages.push({role: 'tool', id: c.id, name: c.name, args: c.input, timestamp: h.timestamp, content: undefined, duration: h.duration, tps: h.tps});
 					} else if(c.type == 'tool_result') {
 						const m: any = messages.findLast(m => (<any>m).id == c.tool_use_id);
 						if(m) m[c.is_error ? 'error' : 'content'] = c.content;
@@ -52,7 +52,10 @@ export class Anthropic extends LLMProvider {
 	ask(message: string, options: LLMRequest = {}): AbortablePromise<string | any> {
 		const controller = new AbortController();
 		return Object.assign(new Promise<any>(async (res) => {
-			let history = this.fromStandard([...options.history || [], {role: 'user', content: message, timestamp: Date.now()}]);
+			let history = this.fromStandard([
+				...(options.history || []).filter(h => h.role !== 'system'),
+				{role: 'user', content: message, timestamp: Date.now()}
+			]);
 			const tools = options.tools || this.ai.options.llm?.tools || [];
 			const requestParams: any = {
 				model: options.model || this.model,
@@ -83,18 +86,17 @@ export class Anthropic extends LLMProvider {
 				};
 			}
 
-			let resp: any, isFirstMessage = true, terminal = false;
+			let resp: any, terminal = false, duration = 0, tps = 0;
 			do {
 				requestParams.messages = history.map(({timestamp, ...m}) => m);
+				const callStart = Date.now();
 				resp = await this.client.messages.create(requestParams).catch(err => {
 					err.message += `\n\nMessages:\n${JSON.stringify(history, null, 2)}`;
 					throw err;
 				});
 
-				// Streaming mode
+				let usage: any;
 				if(options.stream) {
-					if(!isFirstMessage) options.stream({text: '\n\n'});
-					else isFirstMessage = false;
 					resp.content = [];
 					for await (const chunk of resp) {
 						if(controller.signal.aborted) break;
@@ -115,27 +117,31 @@ export class Anthropic extends LLMProvider {
 						} else if(chunk.type === 'content_block_stop') {
 							const last = resp.content.at(-1);
 							if(last?.input != null) last.input = last.input ? JSONAttemptParse(last.input, {}) : {};
+						} else if(chunk.type === 'message_delta') {
+							if(chunk.usage) usage = chunk.usage;
 						} else if(chunk.type === 'message_stop') {
 							break;
 						}
 					}
+				} else {
+					usage = resp.usage;
 				}
+				duration = Date.now() - callStart;
+				tps = usage?.output_tokens && duration > 0 ? usage.output_tokens / (duration / 1000) : 0;
 
-				// Run tools
 				const toolCalls = resp.content.filter((c: any) => c.type === 'tool_use');
 				if(toolCalls.length && !controller.signal.aborted) {
-					history.push({role: 'assistant', content: resp.content, timestamp: Date.now()});
+					history.push({role: 'assistant', content: resp.content, timestamp: Date.now(), duration, tps});
 					const results = await Promise.all(toolCalls.map(async (toolCall: any) => {
 						const tool = tools.find(findByProp('name', toolCall.name));
 						if(options.stream) options.stream({tool: toolCall.name});
 						if(!tool) return {tool_use_id: toolCall.id, is_error: true, content: 'Tool not found'};
 						try {
-							// Wrap stream so a tool's `done` ends turn gracefully
 							const toolStream = options.stream && ((chunk: any) => {
 								if(chunk.done) { terminal = true; return; }
 								options.stream!(chunk);
 							});
-							const result = await tool.fn(toolCall.input, toolStream, this.ai);
+							const result = await tool.fn(toolCall.input, toolStream, this.ai, toolCall.id);
 							return {type: 'tool_result', tool_use_id: toolCall.id, content: typeof result == 'object' ? JSONSanitize(result) : result};
 						} catch (err: any) {
 							return {type: 'tool_result', tool_use_id: toolCall.id, is_error: true, content: err?.message || err?.toString() || 'Unknown'};
@@ -148,12 +154,19 @@ export class Anthropic extends LLMProvider {
 
 			if(!terminal) {
 				const textContent = resp.content.filter((c: any) => c.type == 'text').map((c: any) => c.text).join('\n\n');
-				history.push({role: 'assistant', content: textContent, timestamp: Date.now()});
+				history.push({role: 'assistant', content: textContent.trim(), timestamp: Date.now(), duration, tps});
 			}
+
 			history = this.toStandard(history);
-			if(options.stream) options.stream({done: true});
 			if(options.history) options.history.splice(0, options.history.length, ...history);
-			const finalContent = history.at(-1)?.content;
+			if(options.stream) options.stream({done: true});
+
+			const turnStart = history.map(h => h.role).lastIndexOf('user');
+			const finalContent = history.slice(turnStart + 1).reduce((str, h) => {
+				if(h.role === 'assistant') return str + (h.content || '');
+				return str;
+			}, '').trim();
+
 			res(options.schema ? JSONAttemptParse(finalContent, finalContent) : finalContent);
 		}), {abort: () => controller.abort()});
 	}

src/llm.ts

@@ -22,7 +22,6 @@ export type Agent = {
 	skills?: Skill[] | null;
 	tools?: AiTool[] | null;
 	mcp?: McpServer[] | null;
-	/** Explicit whitelist of agents this agent may delegate to. Default: none - must opt-in, self is always excluded */
 	agents?: string[] | null;
 }
 
@@ -48,6 +47,10 @@ export type LLMMessage = {
 	error?: undefined | string;
 	/** Timestamp */
 	timestamp?: number;
+	/** Response duration in ms */
+	duration?: number;
+	/** Tokens per second */
+	tps?: number;
 }
 
 export type LLMRequest = {
@@ -119,13 +122,7 @@ class LLM {
 		this.memoryManager = new MemoryManager(this);
 	}
 
-	/**
-	 * Wrap agents as tools. Nested delegation is opt-in only (empty by default, like
-	 * tools/skills/mcp) and an agent can never call itself even if explicitly whitelisted.
-	 * Delegate results are queued in `pending` and spliced into history by `ask()` after
-	 * the provider's own end-of-turn history sync has already run.
-	 */
-	private setupAgent(agents: Agent[] = [], allAgents: Agent[], pending: Map<string, {resp: string, subHistory: LLMMessage[]}[]>, aborts: (() => void)[], depth = 0): AiTool[] {
+	private setupAgent(agents: Agent[] = [], allAgents: Agent[], pending: Map<string, any>, aborts: (() => void)[], depth = 0): AiTool[] {
 		return agents.map(a => {
 			const toolName = `${a.delegate ? '' : 'sub'}agent_${snakeCase(a.name)}`;
 			return {
@@ -135,15 +132,16 @@ class LLM {
 					context: {type: 'string', description: 'Summary of related messages, samples, files, etc...', required: true},
 					instructions: {type: 'string', description: 'Detailed instructions for subagent to complete', required: true},
 				},
-				fn: async (args: any, stream: any) => {
+				fn: async (args: any, stream: any, ai: any, id?: string) => {
 					if(depth >= MAX_AGENT_DEPTH) return 'Max agent delegation depth exceeded';
-
 					const subHistory: LLMMessage[] = [];
+
 					// Opt-in only, self always excluded regardless of whitelist
 					const nested = (a.agents || [])
 						.map(name => allAgents.find(x => x.name === name))
 						.filter((x): x is Agent => !!x && x.name !== a.name);
 
+					const start = Date.now();
 					const request = this.ask(`${args.instructions}${args.context ? `\n\n<context>${args.context}</context>` : ''}`, {
 						system: `You are a specialized subagent. ${a.delegate ? 'Your output streams directly to the user for the remainder of this turn.' : 'You are wrapped in a tool call that will be analysis by an LLM'}
 As a subagent, focus on executing your task completely using available tools and returning only the final result - no commentary, questions, or dialogue.
@@ -161,10 +159,14 @@ ${a.system}`,
 					} as any);
 					aborts.push(request.abort);
 					const resp = await request;
+					const duration = Date.now() - start;
+					const assistantTurns = subHistory.filter((h: any) => h.role === 'assistant' && h.duration);
+					const genTime = assistantTurns.reduce((s, h: any) => s + h.duration, 0);
+					const genTokens = assistantTurns.reduce((s, h: any) => s + (h.tps || 0) * (h.duration / 1000), 0);
+					const tps = genTime > 0 ? genTokens / (genTime / 1000) : 0;
 
 					if(a.delegate) {
-						if(!pending.has(toolName)) pending.set(toolName, []);
-						pending.get(toolName)!.push({resp, subHistory});
+						pending.set(<string>id, {resp, subHistory, duration, tps});
 						return '';
 					}
 					return resp;
@@ -231,6 +233,20 @@ ${a.system}`,
 		}
 	}
 
+	private wrapToolTiming(tools: AiTool[], timings: Map<string, {duration: number, tps: number}>): AiTool[] {
+		return tools.map(t => ({
+			...t,
+			fn: async (args: any, stream: any, ai: any, id?: string) => {
+				const start = Date.now();
+				const result = await t.fn(args, stream, ai, id);
+				const duration = Date.now() - start;
+				const tps = duration > 0 ? this.estimateTokens(result) / (duration / 1000) : 0;
+				if(id) timings.set(id, {duration, tps});
+				return result;
+			}
+		}));
+	}
+
 	ask(message: string, options: LLMRequest = {}): AbortablePromise<string> {
 		options = <any>{
 			system: '',
@@ -273,7 +289,7 @@ ${a.system}`,
 
 			// Agents
 			const agents = options.agents || this.ai.options?.llm?.agents;
-			const pendingDelegates = new Map<string, {resp: string, subHistory: LLMMessage[]}[]>();
+			const pendingDelegates = new Map<string, any>();
 			if(agents?.length) tools.push(...this.setupAgent(agents, agents, pendingDelegates, nestedAborts, options._agentDepth || 0));
 
 			// Memory
@@ -316,20 +332,29 @@ Also relevant but not preloaded (use \`memory_recall\`): ${listed.map(r => r.nam
 
 			if(aborted) throw Object.assign(new Error('Aborted'), {name: 'AbortError'});
 
+			// Time each tool call's real execution so its history entry gets its own duration/tps
+			const toolTimings = new Map<string, {duration: number, tps: number}>();
+			tools = this.wrapToolTiming(tools, toolTimings);
+
 			prompts.unshift(options.system || this.ai.options.llm?.system || '');
 			request = this.models[m].ask(message, {...options, tools, system: prompts.filter(Boolean).join('\n\n')});
 			let resp = await request;
 
+			// Providers stamp duration/tps on assistant entries themselves (from real API usage).
+			// Overwrite tool entries with actual tool-execution timing instead of the LLM call timing.
+			for(const h of history) {
+				if(h.role === 'tool' && toolTimings.has(h.id)) Object.assign(h, toolTimings.get(h.id));
+			}
+
 			// Spice delegated agents response into history
 			let lastDelegateResp: string | null = null;
 			if(pendingDelegates.size) {
 				for(let i = 0; i < history.length; i++) {
-					const h = history[i];
-					if(h.role !== 'tool' || h.content !== '') continue;
-					const queue = pendingDelegates.get(h.name);
-					if(!queue?.length) continue;
-					const {resp: delegateResp, subHistory} = queue.shift()!;
-					const insert: LLMMessage[] = [...subHistory.filter(sh => sh.role === 'tool'), {role: 'assistant', content: delegateResp, timestamp: Date.now()}];
+					const h: any = history[i];
+					if(h.role !== 'tool' || !pendingDelegates.has(h.id)) continue;
+					const {resp: delegateResp, subHistory, duration, tps} = pendingDelegates.get(h.id)!;
+					pendingDelegates.delete(h.id);
+					const insert: LLMMessage[] = [...subHistory.filter(sh => sh.role === 'tool'), {role: 'assistant', content: delegateResp, timestamp: Date.now(), duration, tps}];
 					history.splice(i + 1, 0, ...insert);
 					lastDelegateResp = delegateResp;
 					i += insert.length;

src/memory.ts

@@ -2,73 +2,6 @@ import {LLMRequest, LLMMessage} from './llm.ts';
 import {AiTool} from './tools.ts';
 import {KDPoint, KDTree} from './kd-tree.ts';
 
-export function buildMemoryGraph(memories: Memory[] | MemoryCache): MemoryNode[] {
-	const mems = memories instanceof MemoryCache ? memories.memories : memories;
-	const nameSet = new Set(mems.map(m => m.name));
-	const ghosts = new Set<string>();
-
-	const nodes: MemoryNode[] = mems.map(m => {
-		const {links, backlinks} = extractMetadata(m.content);
-		return {
-			name: m.name,
-			missing: false,
-			links,
-			backlinks,
-		};
-	});
-
-	for (const node of nodes) {
-		for (const link of node.links) {
-			if (!nameSet.has(link)) ghosts.add(link);
-		}
-	}
-
-	return [
-		...nodes,
-		...[...ghosts].map(name => ({
-			name,
-			missing: true,
-			links: [],
-			backlinks: nodes
-				.filter(n => n.links.includes(name))
-				.map(n => n.name),
-		}))
-	];
-}
-
-export function renderMemoryGraph(nodes) {
-	if (!nodes.length) return 'No memories yet.';
-
-	const groups = new Map();
-	for (const node of nodes) {
-		const [prefix, ...rest] = node.name.split('/');
-		const group = rest.length ? prefix : 'Root';
-		const label = rest.length ? rest.join('/') : node.name;
-		if (!groups.has(group)) groups.set(group, []);
-		groups.get(group).push({...node, label});
-	}
-
-	const ghostCount = nodes.filter(n => n.missing).length;
-	const lines = [`Memory Graph (${nodes.length} nodes, ${ghostCount} ghost${ghostCount === 1 ? '' : 's'})`, ''];
-
-	for (const group of [...groups.keys()].sort()) {
-		const items = groups.get(group).sort((a, b) => a.label.localeCompare(b.label));
-		lines.push(`${group}/`);
-		items.forEach((n, i) => {
-			const last = i === items.length - 1;
-			const branch = last ? '└─' : '├─';
-			const pad = last ? '  ' : '│ ';
-			const tag = n.missing ? ' (ghost)' : '';
-			lines.push(`  ${branch} ${n.label}${tag}`);
-			if (n.links.length) lines.push(`  ${pad}   → ${n.links.join(', ')}`);
-			if (n.backlinks.length) lines.push(`  ${pad}   ← ${n.backlinks.join(', ')}`);
-		});
-		lines.push('');
-	}
-
-	return lines.join('\n').trimEnd();
-}
-
 export class MemoryCache {
 	private tree: KDTree<MemoryRef>;
 	public memories: Memory[];

src/open-ai.ts

@@ -20,15 +20,19 @@ export class OpenAi extends LLMProvider {
 		for(let i = 0; i < history.length; i++) {
 			const h = history[i];
 			if(h.role === 'assistant' && h.tool_calls) {
-				const tools = h.tool_calls.map((tc: any) => ({
+				const items: any[] = [];
+				if(h.content) items.push({role: 'assistant', content: h.content, timestamp: h.timestamp, duration: h.duration, tps: h.tps});
+				items.push(...h.tool_calls.map((tc: any) => ({
 					role: 'tool',
 					id: tc.id,
 					name: tc.function.name,
 					args: JSONAttemptParse(tc.function.arguments, {}),
-					timestamp: h.timestamp
-				}));
-				history.splice(i, 1, ...tools);
-				i += tools.length - 1;
+					timestamp: h.timestamp,
+					duration: h.duration,
+					tps: h.tps
+				})));
+				history.splice(i, 1, ...items);
+				i += items.length - 1;
 			} else if(h.role === 'tool') {
 				const record = history.find(h2 => h.tool_call_id == h2.id);
 				if(record) {
@@ -69,11 +73,12 @@ export class OpenAi extends LLMProvider {
 	ask(message: string, options: LLMRequest = {}): AbortablePromise<string | any> {
 		const controller = new AbortController();
 		return Object.assign(new Promise<any>(async (res, rej) => {
-			if(options.system) {
-				if(options.history?.[0]?.role != 'system') options.history?.splice(0, 0, {role: 'system', content: options.system, timestamp: Date.now()});
-				else options.history[0].content = options.system;
-			}
-			let history = this.fromStandard([...options.history || [], {role: 'user', content: message, timestamp: Date.now()}]);
+			const base = (options.history || []).filter(h => h.role !== 'system');
+			let history = this.fromStandard([
+				...(options.system ? [{role: <any>'system', content: options.system, timestamp: Date.now()}] : []),
+				...base,
+				{role: 'user', content: message, timestamp: Date.now()}
+			]);
 			const tools = options.tools || this.ai.options.llm?.tools || [];
 			const requestParams: any = {
 				model: options.model || this.model,
@@ -107,26 +112,27 @@ export class OpenAi extends LLMProvider {
 				};
 			}
 
-			let resp: any, isFirstMessage = true, terminal = false;
+			if(options.stream) requestParams.stream_options = {include_usage: true};
+			let resp: any, terminal = false, duration = 0, tps = 0;
 			do {
 				requestParams.messages = history.map(({timestamp, ...m}) => m);
+				const callStart = Date.now();
 				resp = await this.client.chat.completions.create(requestParams).catch(err => {
 					err.message += `\n\nMessages:\n${JSON.stringify(history, null, 2)}`;
 					throw err;
 				});
 
+				let usage: any;
 				if(options.stream) {
-					if(!isFirstMessage) options.stream({text: '\n\n'});
-					else isFirstMessage = false;
 					resp.choices = [{message: {role: 'assistant', content: '', tool_calls: [], timestamp: Date.now()}}];
 					for await (const chunk of resp) {
 						if(controller.signal.aborted) break;
-						if(chunk.choices[0].delta.content) {
+						if(chunk.usage) usage = chunk.usage;
+						if(chunk.choices[0]?.delta?.content) {
 							resp.choices[0].message.content += chunk.choices[0].delta.content;
 							options.stream({text: chunk.choices[0].delta.content});
 						}
-
-						if(chunk.choices[0].delta.tool_calls) {
+						if(chunk.choices[0]?.delta?.tool_calls) {
 							for(const deltaTC of chunk.choices[0].delta.tool_calls) {
 								const existing = resp.choices[0].message.tool_calls.find(tc => tc.index === deltaTC.index);
 								if(existing) {
@@ -151,24 +157,27 @@ export class OpenAi extends LLMProvider {
 							}
 						}
 					}
+				} else {
+					usage = resp.usage;
 				}
+				duration = Date.now() - callStart;
+				tps = usage?.completion_tokens && duration > 0 ? usage.completion_tokens / (duration / 1000) : 0;
 
 				if(resp.error) throw new Error(resp.error);
 				const toolCalls = resp.choices[0].message.tool_calls || [];
 				if(toolCalls.length && !controller.signal.aborted) {
-					history.push(resp.choices[0].message);
+					history.push({...resp.choices[0].message, duration, tps});
 					const results = await Promise.all(toolCalls.map(async (toolCall: any) => {
 						const tool = tools?.find(findByProp('name', toolCall.function.name));
 						if(options.stream) options.stream({tool: toolCall.function.name});
 						if(!tool) return {role: 'tool', tool_call_id: toolCall.id, content: '{"error": "Tool not found"}', timestamp: Date.now()};
 						try {
 							const args = JSONAttemptParse(toolCall.function.arguments, {});
-							// Wrap stream so a tool's `done` ends turn gracefully
 							const toolStream = options.stream && ((chunk: any) => {
 								if(chunk.done) { terminal = true; return; }
 								options.stream!(chunk);
 							});
-							const result = await tool.fn(args, toolStream, this.ai);
+							const result = await tool.fn(args, toolStream, this.ai, toolCall.id);
 							return {role: 'tool', tool_call_id: toolCall.id, content: typeof result == 'object' ? JSONSanitize(result) : result, timestamp: Date.now()};
 						} catch (err: any) {
 							return {role: 'tool', tool_call_id: toolCall.id, content: JSONSanitize({error: err?.message || err?.toString() || 'Unknown'}), timestamp: Date.now()};
@@ -180,13 +189,20 @@ export class OpenAi extends LLMProvider {
 			} while (!terminal && !controller.signal.aborted && resp.choices?.[0]?.message?.tool_calls?.length);
 
 			if(!terminal) {
-				const textContent = resp.choices[0].message.content?.trim() || '';
-				history.push({role: 'assistant', content: textContent, timestamp: Date.now()});
+				const textContent = resp.choices[0].message.content || '';
+				history.push({role: 'assistant', content: textContent.trim(), timestamp: Date.now(), duration, tps});
 			}
+
 			history = this.toStandard(history);
+			if(options.history) options.history.splice(0, options.history.length, ...history.filter(h => h.role !== 'system'));
 			if(options.stream) options.stream({done: true});
-			if(options.history) options.history.splice(0, options.history.length, ...history);
-			const finalContent = history.at(-1)?.content;
+
+			const turnStart = history.map(h => h.role).lastIndexOf('user');
+			const finalContent = history.slice(turnStart + 1).reduce((str, h) => {
+				if(h.role === 'assistant') return str + (h.content || '');
+				return str;
+			}, '').trim();
+
 			res(options.schema ? JSONAttemptParse(finalContent, finalContent) : finalContent);
 		}), {abort: () => controller.abort()});
 	}

src/tools.ts

@@ -41,7 +41,7 @@ export type AiTool = {
 	/** Tool arguments */
 	args?: AiToolArg,
 	/** Callback function */
-	fn: (args: any, stream: LLMRequest['stream'], ai: Ai) => any | Promise<any>,
+	fn: (args: any, stream: LLMRequest['stream'], ai: Ai, toolId?: string) => any | Promise<any>,
 };
 
 export function convertSchema(schema: any): any {