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0.4.0 ... 1.3.5

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497f051c62 bump 1.3.5
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2026-08-04 09:30:45 -04:00
62fbe73b22 Added tps + duration to AI history
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2026-08-04 09:26:57 -04:00
d53b1c6328 Removed <tool> blocks from responses
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2026-08-03 20:23:22 -04:00
89619e211e Fixed message history and response
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2026-08-03 19:30:39 -04:00
afc6653364 fixed openai system calls in history breaking anthropic calls
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2026-08-02 22:35:17 -04:00
68e72445a2 Keep recent memories in context
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2026-08-01 21:42:05 -04:00
1aa6cdf329 Agent/subagent support
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2026-08-01 18:28:16 -04:00
d022a5ef4d Improved levenshtein fuzzy match
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2026-08-01 12:00:26 -04:00
a1d438a20a Tools can now emit "done" event and end chat early gracefully
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2026-07-31 17:49:06 -04:00
52a9e3aaa4 Fixed history poisoning on empty tool response
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2026-07-30 22:12:49 -04:00
a7aec4ee29 Improved memory prompt slightly
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2026-07-30 16:00:03 -04:00
dda2d4c2a3 Bump 1.2.8
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2026-07-29 22:35:29 -04:00
58e0e488e4 Added Geo, FS and flarescraperr tools
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2026-07-29 22:34:51 -04:00
8dfcd06752 More memory fixes
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2026-07-29 22:11:09 -04:00
14f6cdd313 Personal file memory organization instructions
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2026-07-27 22:47:48 -04:00
73d6ee0f2a Personal file memory organization instructions
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2026-07-27 22:39:06 -04:00
bee4085666 updatememory awaits full result
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2026-07-27 22:34:36 -04:00
3b5c71de7c Improved memory management
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2026-07-27 20:10:09 -04:00
8229e02a52 Improved memory management
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2026-07-27 14:25:24 -04:00
a6fb8ae828 New memory system
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2026-07-27 03:59:39 -04:00
d1230bcaad Updated wiki tool
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2026-07-26 12:18:57 -04:00
2d49c9aa80 Removed redundant llama protocol (Use openai)
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2026-07-11 19:33:02 -04:00
9a39f00f94 Diarization fix
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2026-07-11 18:36:24 -04:00
436757daad Added new json output support
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2026-07-11 18:27:55 -04:00
69b3297bb3 Proper error handling for OCR
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2026-06-09 11:21:12 -04:00
710c6ce52c Proper error handling for OCR
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2026-06-09 11:20:50 -04:00
4ac3036000 Proper error handling for OCR
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2026-06-09 09:41:09 -04:00
3121d542d4 OCR
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2026-06-09 08:29:46 -04:00
51ab8f2538 Memory / history fixes
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2026-06-07 21:35:26 -04:00
7dd3307a07 Update LLM models at runtime
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2026-06-07 15:50:54 -04:00
209d3b120b Export memory types
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2026-06-07 13:06:45 -04:00
0b1c25dfda Added MCP, Hybrid Memories and Skill support
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2026-06-06 22:02:19 -04:00
af6522ad88 Bump 0.9.0
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2026-03-29 23:01:30 -04:00
ee7b85301b * Fixed llm response object (double encoding)
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+ added wikitools
+ Improved webpage reading tool
2026-03-29 23:00:40 -04:00
d2e711fbf2 Added wikipedia tools
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2026-03-29 21:50:26 -04:00
596e99daa7 Use word count for summary (more predictable)
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2026-03-26 13:10:46 -04:00
eda4eed87d Added JSON / Summary LLM safeguard
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7f88c2d1d0 Added JSON / Summary LLM safeguard
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5eae84f6cf Added JSON / Summary LLM safeguard
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2026-03-26 12:24:20 -04:00
52a3e73484 Improved read_webpage tool
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2026-03-21 14:34:24 -04:00
ccb1bdf043 Added Non-UTC version of date/time tool
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2026-03-13 18:55:38 -04:00
b814ea8b28 Improved memory recall results
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2026-03-03 00:26:00 -05:00
06dda88dbc Removed log statements
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2026-03-02 14:00:58 -05:00
5d34652d46 Fixed CLI tool
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2026-03-01 18:11:25 -05:00
6454548364 Fixed CLI tool
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2026-03-01 17:18:30 -05:00
936317f2f2 Better memory de-duplication
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2026-03-01 00:11:17 -05:00
cfde2ac4d3 Fixed open AI tool call streaming!
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2026-02-27 13:11:41 -05:00
e4ba89d3db Open ai tool call history fix?
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2026-02-27 13:00:49 -05:00
71a7e2a904 Better RAG memory
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2026-02-27 12:32:27 -05:00
abd290246c LLM ASR
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2026-02-22 09:29:31 -05:00
ca66e8e304 Improved whisper + pyannote, sentence diarization
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2026-02-21 14:16:20 -05:00
cec892563e Whisper ASR
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2026-02-21 01:03:25 -05:00
91066e070f WIP ASR
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2026-02-21 00:51:01 -05:00
a94b153c6d Fixed embedder autostart bug
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2026-02-21 00:30:38 -05:00
39537a4a8f Switching to processes and whisper.cpp to avoid transformers.js memory leaks
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2026-02-20 21:50:01 -05:00
790608f020 Queue OCR & ASR work
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2026-02-20 19:05:19 -05:00
473424ae23 segfault fix
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2026-02-20 17:31:49 -05:00
9b831f7d95 Better ASR IDing
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2026-02-20 16:55:25 -05:00
498b326e45 Bump 0.7.4
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2026-02-20 14:19:17 -05:00
56e4efec94 Use either python or python3 or diarization 2026-02-20 14:14:30 -05:00
a07f069ad0 One embedding at a time
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2026-02-19 22:58:53 -05:00
da15d299e6 parallel embedding cap
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2026-02-19 21:37:58 -05:00
7ef7c3f676 Cap speaker ID transcript length to 2000 tokens
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2026-02-14 09:48:12 -05:00
4143d00de7 Working speaker detection with advanced LLM identifying. Improved LLM json function
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2026-02-14 09:39:17 -05:00
0360f2493d Added hugging face token
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2026-02-12 22:15:57 -05:00
0172887877 audio worker fix
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2026-02-12 20:24:12 -05:00
8f89f5e3cf embedding worker fix
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5bd41f8c6a worker fix?
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e4399e1b7b Updataes?
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ad1ee48763 Use one-off workers to process requests without blocking
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3ed206923f Fix ASR
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22d5427e86 Fix ASR
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43b53164c0 Bump 0.6.3
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575fbac099 Fixed ASR
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46ae0f7913 expose diarization support checking function
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54730a2b9a Speaker diarization
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27506d20af Fix anthropic message history
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2026-02-11 22:45:30 -05:00
8c64129200 Removed log statement
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013aa942c0 Added save directory for embedder
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c8d5660b1a Enable quantized embedder for speed boost
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f2c66b0cb8 Updated default embedder
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cda7db4f45 Added memory system
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2026-02-08 19:52:02 -05:00
d71a6be120 Fixed timezones with date time tool
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2026-02-02 09:30:48 -05:00
17 changed files with 4520 additions and 2637 deletions

144
README.md
View File

@@ -3,7 +3,7 @@
<br />
<!-- Logo -->
<img src="https://git.zakscode.com/repo-avatars/a90851ca730480ec37a5c0c2c4f1b4609eee5eadf806eaf16c83ac4cb7493aa9" alt="Logo" width="200" height="200">
<img alt="Logo" width="200" height="200" src="https://git.zakscode.com/repo-avatars/a82d423674763e7a0c1c945bdbb07e249b2bb786d3c9beae76d5b196a10f5c0f">
<!-- Title -->
### @ztimson/ai-utils
@@ -53,13 +53,15 @@ A TypeScript library that provides a unified interface for working with multiple
- **Provider Abstraction**: Switch between AI providers without changing your code
### Built With
[![Anthropic](https://img.shields.io/badge/Anthropic-191919?style=for-the-badge&logo=anthropic&logoColor=white)](https://anthropic.com/)
[![OpenAI](https://img.shields.io/badge/OpenAI-412991?style=for-the-badge&logo=openai&logoColor=white)](https://openai.com/)
[![Ollama](https://img.shields.io/badge/Ollama-000000?style=for-the-badge&logo=ollama&logoColor=white)](https://ollama.com/)
[![TensorFlow](https://img.shields.io/badge/TensorFlow-FF6F00?style=for-the-badge&logo=tensorflow&logoColor=white)](https://tensorflow.org/)
[![Tesseract](https://img.shields.io/badge/Tesseract-3C8FC7?style=for-the-badge&logo=tesseract&logoColor=white)](https://tesseract-ocr.github.io/)
[![Anthropic](https://img.shields.io/badge/Anthropic-de7356?style=for-the-badge&logo=anthropic&logoColor=white)](https://anthropic.com/)
[![llama](https://img.shields.io/badge/llama.cpp-fff?style=for-the-badge&logo=ollama&logoColor=black)](https://github.com/ggml-org/llama.cpp)
[![OpenAI](https://img.shields.io/badge/OpenAI-000?style=for-the-badge&logo=openai-gym&logoColor=white)](https://openai.com/)
[![Pyannote](https://img.shields.io/badge/Pyannote-458864?style=for-the-badge&logo=python&logoColor=white)](https://github.com/pyannote)
[![TensorFlow](https://img.shields.io/badge/TensorFlow-fff?style=for-the-badge&logo=tensorflow&logoColor=ff6f00)](https://tensorflow.org/)
[![Tesseract](https://img.shields.io/badge/Tesseract-B874B2?style=for-the-badge&logo=hack-the-box&logoColor=white)](https://tesseract-ocr.github.io/)
[![Transformers.js](https://img.shields.io/badge/Transformers.js-000?style=for-the-badge&logo=hugging-face&logoColor=yellow)](https://huggingface.co/docs/transformers.js/en/index)
[![TypeScript](https://img.shields.io/badge/TypeScript-3178C6?style=for-the-badge&logo=typescript&logoColor=white)](https://typescriptlang.org/)
[![Whisper](https://img.shields.io/badge/Whisper-412991?style=for-the-badge&logo=openai&logoColor=white)](https://github.com/ggerganov/whisper.cpp)
[![Whisper](https://img.shields.io/badge/Whisper.cpp-000?style=for-the-badge&logo=openai-gym&logoColor=white)](https://github.com/ggerganov/whisper.cpp)
## Setup
@@ -75,6 +77,7 @@ A TypeScript library that provides a unified interface for working with multiple
#### Instructions
1. Install the package: `npm i @ztimson/ai-utils`
2. For speaker diarization: `pip install pyannote.audio`
</details>
@@ -87,17 +90,138 @@ A TypeScript library that provides a unified interface for working with multiple
#### Prerequisites
- [Node.js](https://nodejs.org/en/download)
- _[Whisper.cpp](https://github.com/ggml-org/whisper.cpp/releases/tag) (ASR)_
- _[Pyannote](https://github.com/pyannote) (ASR Diarization):_ `pip install pyannote.audio`
#### Instructions
1. Install the dependencies: `npm i`
2. Build library: `npm build`
3. Run unit tests: `npm test`
2. For speaker diarization: `pip install pyannote.audio`
3. Build library: `npm build`
4. Run unit tests: `npm test`
</details>
## Documentation
[Available Here](https://ai-utils.docs.zakscode.com/)
### Setup
```javascript
const ai = new Ai({
path: '/ai-models',
// Setup audio
whisper: '/path/to/binary', // Required for ASR
hfToken: '...', // Required for diarization
asr: 'ggml-base.en.bin', // Override default ASR model
// Setup LLM
embedder: 'bge-small-en-v1.5', // Override default embedder model
llm: {
system: 'You are a helpful assistant.',
compress: {max: 90_000, min: 50_000}, // Compress chat history to min tokens when max is reached
temperature: 0.8,
max_tokens: 100_000,
memoryModel: 'gpt-4o', // Cheap model for managing memories in background, defaults to current model
models: {
'claude-3-5-sonnet': {proto: 'anthropic', token: process.env.ANTHROPIC_TOKEN},
'gpt-4o': {proto: 'openai', token: process.env.OPENAI_TOKEN},
'llama3': {proto: 'ollama', host: 'http://localhost:11434'},
},
mcp: [
{name: 'files', url: 'https://mcp.example.com', token: process.env.MCP_TOKEN}
],
skills: [
{name: 'Tone of voice', description: 'Brand writing guidelines', content: '# Tone of Voice\n\nAlways be concise and friendly...'}
],
tools: [{
name: 'Marco?',
description: 'Where is marco polo?',
args: {
shout: {type: 'boolean', default: 'Shout into the void?', description: false, required: false}
},
fn: (args: any, stream: LLMRequest['stream'], ai: Ai) => {
const {shout} = args;
return shout ? 'Polo!' : 'Polo';
}
}],
},
// Setup Vision
ocr: 'eng' // Override default OCR model
});
```
### Audio
```javascript
// Crate audio transcript
const text = await ai.audio.asr('./path/to/audio.mp3');
console.log(text);
// Break transcript into speakers
const text = await ai.audio.asr('./path/to/audio.mp3', {diarization: true});
console.log(text);
// Break transcript into named speakers
const text = await ai.audio.asr('./path/to/audio.mp3', {diarization: 'llm'});
console.log(text);
```
### Language
```javascript
const history = [], memory = [];
// Wait for entire response
const text = await ai.language.ask('My favorite color is blue, whats yours?', {history, memory});
console.log(text);
// Stream response
const chunks = '';
await ai.language.ask('Write me a poem', {
history, memory,
stream: chunk => chunks += chunk,
});
console.log(chunks);
// Manually compile history into memories at end of conversation
// Happens automatically when coverstaions are compressed
await ai.language.updateMemory(history, memory);
// Summarize text
const summary = await ai.language.summarize(longText, 200);
// Code response (no conversation or extra BS)
const code = await ai.language.code('Write a fibonacci function');
// Structured JSON response
const data = await ai.language.json('Extract the name and age', `{
"name": "string",
"age": "number"
}`, {system: 'Extract from user input'});
```
#### Premade LLM Tools:
- `cli`: Run a shell command, returns its output
- `get_datetime`: Returns local date/time
- `get_datetime_utc`: Returns current UTC date/time
- `exec`: Execute code in cli, node, or python
- `fetch`: Make HTTP requests (GET/POST/PUT/DELETE)
- `exec_javascript`: Execute CommonJS JavaScript
- `exec_python`: Execute Python via python -c
- `read_webpage`: Scrape & clean content from a URL, handles HTML, JSON, CSV, media, PDFs etc.
- `web_search`: Anonymous DuckDuckGo search, returns a list of URLs
- `wikipedia_lookup`: Fetch a Wikipedia article (intro or full)
- `wikipedia_search`: Search Wikipedia and return matching articles
- `get_weather`: Fetch current weather + forecast for a location (just built!)
### Vision
```javascript
// Extract text from image
const text = await ai.vision.ocr('./path/to/image.png');
console.log(text);
```
## License

4144
package-lock.json generated

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View File

@@ -1,6 +1,6 @@
{
"name": "@ztimson/ai-utils",
"version": "0.4.0",
"version": "1.3.5",
"description": "AI Utility library",
"author": "Zak Timson",
"license": "MIT",
@@ -25,21 +25,21 @@
"watch": "npx vite build --watch"
},
"dependencies": {
"@anthropic-ai/sdk": "^0.67.0",
"@anthropic-ai/sdk": "^0.102.0",
"@tensorflow/tfjs": "^4.22.0",
"@xenova/transformers": "^2.17.2",
"@ztimson/node-utils": "^1.0.4",
"@ztimson/utils": "^0.27.9",
"@huggingface/transformers": "^4.2.0",
"@ztimson/node-utils": "^1.0.7",
"@ztimson/utils": "^0.29.4",
"cheerio": "^1.2.0",
"openai": "^6.6.0",
"tesseract.js": "^6.0.1"
"openai": "^6.42.0",
"tesseract.js": "^7.0.0"
},
"devDependencies": {
"@types/node": "^24.8.1",
"@types/node": "^24.13.1",
"typedoc": "^0.26.7",
"typescript": "^5.3.3",
"vite": "^7.2.7",
"vite-plugin-dts": "^4.5.3"
"typescript": "^5.6.3",
"vite": "^8.0.16",
"vite-plugin-dts": "^5.0.2"
},
"files": [
"dist"

View File

@@ -1,29 +1,29 @@
import * as os from 'node:os';
import {LLM, AnthropicConfig, OllamaConfig, OpenAiConfig, LLMRequest} from './llm';
import LLM, {AnthropicConfig, OpenAiConfig, LLMRequest} from './llm';
import { Audio } from './audio.ts';
import {Vision} from './vision.ts';
export type AbortablePromise<T> = Promise<T> & {abort: () => any};
export type AbortablePromise<T> = Promise<T> & {
abort: () => any
};
export type AiOptions = {
/** Token to pull diarization models from hugging face */
hfToken?: string;
/** Path to models */
path?: string;
/** Whisper ASR model: ggml-tiny.en.bin, ggml-base.en.bin */
asr?: string;
/** Embedding model: all-MiniLM-L6-v2, bge-small-en-v1.5, bge-large-en-v1.5 */
embedder?: string;
/** Large language models, first is default */
llm?: Omit<LLMRequest, 'model'> & {
models: {[model: string]: AnthropicConfig | OllamaConfig | OpenAiConfig};
}
/** Tesseract OCR configuration */
tesseract?: {
/** Model: eng, eng_best, eng_fast */
model?: string;
}
/** Whisper ASR configuration */
whisper?: {
/** Whisper binary location */
binary: string;
/** Model: `ggml-base.en.bin` */
model: string;
models: {[model: string]: AnthropicConfig | OpenAiConfig};
}
/** OCR model: eng, eng_best, eng_fast */
ocr?: string;
/** Whisper binary */
whisper?: string;
}
export class Ai {

View File

@@ -3,6 +3,7 @@ import {findByProp, objectMap, JSONSanitize, JSONAttemptParse} from '@ztimson/ut
import {AbortablePromise, Ai} from './ai.ts';
import {LLMMessage, LLMRequest} from './llm.ts';
import {LLMProvider} from './provider.ts';
import {convertSchema} from './tools.ts';
export class Anthropic extends LLMProvider {
client!: anthropic;
@@ -13,25 +14,25 @@ export class Anthropic extends LLMProvider {
}
private toStandard(history: any[]): LLMMessage[] {
for(let i = 0; i < history.length; i++) {
const orgI = i;
if(typeof history[orgI].content != 'string') {
if(history[orgI].role == 'assistant') {
history[orgI].content.filter((c: any) => c.type =='tool_use').forEach((c: any) => {
i++;
history.splice(i, 0, {role: 'tool', id: c.id, name: c.name, args: c.input, timestamp: Date.now()});
});
} else if(history[orgI].role == 'user') {
history[orgI].content.filter((c: any) => c.type =='tool_result').forEach((c: any) => {
const h = history.find((h: any) => h.id == c.tool_use_id);
h[c.is_error ? 'error' : 'content'] = c.content;
});
}
history[orgI].content = history[orgI].content.filter((c: any) => c.type == 'text').map((c: any) => c.text).join('\n\n');
const timestamp = Date.now();
const messages: LLMMessage[] = [];
for(let h of history) {
if(typeof h.content == 'string') {
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, 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: 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;
}
});
}
if(!history[orgI].timestamp) history[orgI].timestamp = Date.now();
}
return history.filter(h => !!h.content);
return messages;
}
private fromStandard(history: LLMMessage[]): any[] {
@@ -45,22 +46,22 @@ export class Anthropic extends LLMProvider {
i++;
}
}
return history.map(({timestamp, ...h}) => h);
return history;
}
ask(message: string, options: LLMRequest = {}): AbortablePromise<LLMMessage[]> {
ask(message: string, options: LLMRequest = {}): AbortablePromise<string | any> {
const controller = new AbortController();
const response = new Promise<any>(async (res, rej) => {
let history = [...options.history || [], {role: 'user', content: message, timestamp: Date.now()}];
if(options.compress) history = await this.ai.language.compressHistory(<any>history, options.compress.max, options.compress.min, options);
history = this.fromStandard(<any>history);
return Object.assign(new Promise<any>(async (res) => {
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,
max_tokens: options.max_tokens || this.ai.options.llm?.max_tokens || 4096,
system: options.system || this.ai.options.llm?.system || '',
temperature: options.temperature || this.ai.options.llm?.temperature || 0.7,
temperature: options.temperature || this.ai.options.llm?.temperature || undefined,
tools: tools.map(t => ({
name: t.name,
description: t.description,
@@ -75,18 +76,27 @@ export class Anthropic extends LLMProvider {
stream: !!options.stream,
};
let resp: any, isFirstMessage = true;
const assistantMessages: string[] = [];
// Add structured output support
if(options.schema) {
requestParams.output_config = {
format: {
type: 'json_schema',
schema: convertSchema(options.schema)
}
};
}
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;
@@ -106,37 +116,58 @@ 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, {}) : {};
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});
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 {
const result = await tool.fn(toolCall.input, this.ai);
return {type: 'tool_result', tool_use_id: toolCall.id, content: JSONSanitize(result)};
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, 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'};
}
}));
history.push({role: 'user', content: results});
history.push({role: 'user', content: results, timestamp: Date.now()});
requestParams.messages = history;
}
} while (!controller.signal.aborted && resp.content.some((c: any) => c.type === 'tool_use'));
} while (!terminal && !controller.signal.aborted && resp.content.some((c: any) => c.type === 'tool_use'));
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.trim(), timestamp: Date.now(), duration, tps});
}
history = this.toStandard(history);
if(options.history) options.history.splice(0, options.history.length, ...history);
if(options.stream) options.stream({done: true});
res(this.toStandard([...history, {role: 'assistant', content: resp.content.filter((c: any) => c.type == 'text').map((c: any) => c.text).join('\n\n')}]));
});
return Object.assign(response, {abort: () => controller.abort()});
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()});
}
}

View File

@@ -1,39 +1,265 @@
import {spawn} from 'node:child_process';
import {execSync, spawn} from 'node:child_process';
import {mkdtempSync} from 'node:fs';
import fs from 'node:fs/promises';
import Path from 'node:path';
import {tmpdir} from 'node:os';
import Path, {join} from 'node:path';
import {AbortablePromise, Ai} from './ai.ts';
export class Audio {
private downloads: {[key: string]: Promise<string>} = {};
private pyannote!: string;
private whisperModel!: string;
constructor(private ai: Ai) {
if(ai.options.whisper?.binary) {
this.whisperModel = ai.options.whisper?.model.endsWith('.bin') ? ai.options.whisper?.model : ai.options.whisper?.model + '.bin';
if(ai.options.whisper) {
this.whisperModel = ai.options.asr || 'ggml-base.en.bin';
this.downloadAsrModel();
}
this.pyannote = `
import sys
import json
import os
from pyannote.audio import Pipeline
os.environ['TORCH_HOME'] = r"${ai.options.path}"
pipeline = Pipeline.from_pretrained("pyannote/speaker-diarization-3.1", token="${ai.options.hfToken}")
output = pipeline(sys.argv[1])
segments = []
for turn, speaker in output.speaker_diarization:
segments.append({"start": turn.start, "end": turn.end, "speaker": speaker})
print(json.dumps(segments))
`;
}
asr(path: string, model: string = this.whisperModel): AbortablePromise<string | null> {
if(!this.ai.options.whisper?.binary) throw new Error('Whisper not configured');
let abort: any = () => {};
const p = new Promise<string | null>(async (resolve, reject) => {
const m = await this.downloadAsrModel(model);
let output = '';
const proc = spawn(<string>this.ai.options.whisper?.binary, ['-nt', '-np', '-m', m, '-f', path], {stdio: ['ignore', 'pipe', 'ignore']});
abort = () => proc.kill('SIGTERM');
proc.on('error', (err: Error) => reject(err));
proc.stdout.on('data', (data: Buffer) => output += data.toString());
proc.on('close', (code: number) => {
if(code === 0) resolve(output.trim() || null);
else reject(new Error(`Exit code ${code}`));
private async addPunctuation(timestampData: any, llm?: boolean, cadence = 150): Promise<string> {
const countSyllables = (word: string): number => {
word = word.toLowerCase().replace(/[^a-z]/g, '');
if(word.length <= 3) return 1;
const matches = word.match(/[aeiouy]+/g);
let count = matches ? matches.length : 1;
if(word.endsWith('e')) count--;
return Math.max(1, count);
};
let result = '';
timestampData.transcription.filter((word, i) => {
let skip = false;
const prevWord = timestampData.transcription[i - 1];
const nextWord = timestampData.transcription[i + 1];
if(!word.text && nextWord) {
nextWord.offsets.from = word.offsets.from;
nextWord.timestamps.from = word.offsets.from;
} else if(word.text && word.text[0] != ' ' && prevWord) {
prevWord.offsets.to = word.offsets.to;
prevWord.timestamps.to = word.timestamps.to;
prevWord.text += word.text;
skip = true;
}
return !!word.text && !skip;
}).forEach((word: any) => {
const capital = /^[A-Z]/.test(word.text.trim());
const length = word.offsets.to - word.offsets.from;
const syllables = countSyllables(word.text.trim());
const expected = syllables * cadence;
if(capital && length > expected * 2 && word.text[0] == ' ') result += '.';
result += word.text;
});
if(!llm) return result.trim();
return this.ai.language.ask(result, {
system: 'Remove any misplaced punctuation from the following ASR transcript using the replace tool. Avoid modifying words unless there is an obvious typo',
temperature: 0.1,
tools: [{
name: 'replace',
description: 'Use find and replace to fix errors',
args: {
find: {type: 'string', description: 'Text to find', required: true},
replace: {type: 'string', description: 'Text to replace', required: true}
},
fn: (args) => result = result.replace(args.find, args.replace)
}]
}).then(() => result);
}
private async diarizeTranscript(timestampData: any, speakers: any[], llm: boolean): Promise<string> {
const speakerMap = new Map();
let speakerCount = 0;
speakers.forEach((seg: any) => {
if(!speakerMap.has(seg.speaker)) speakerMap.set(seg.speaker, ++speakerCount);
});
const punctuatedText = await this.addPunctuation(timestampData, llm);
const sentences = punctuatedText.match(/[^.!?]+[.!?]+/g) || [punctuatedText];
const words = timestampData.transcription.filter((w: any) => w.text.trim());
// Assign speaker to each sentence
const sentencesWithSpeakers = sentences.map(sentence => {
sentence = sentence.trim();
if(!sentence) return null;
const sentenceWords = sentence.toLowerCase().replace(/[^\w\s]/g, '').split(/\s+/);
const speakerWordCount = new Map<number, number>();
sentenceWords.forEach(sw => {
const word = words.find((w: any) => sw === w.text.trim().toLowerCase().replace(/[^\w]/g, ''));
if(!word) return;
const wordTime = word.offsets.from / 1000;
const speaker = speakers.find((seg: any) => wordTime >= seg.start && wordTime <= seg.end);
if(speaker) {
const spkNum = speakerMap.get(speaker.speaker);
speakerWordCount.set(spkNum, (speakerWordCount.get(spkNum) || 0) + 1);
}
});
let bestSpeaker = 1;
let maxWords = 0;
speakerWordCount.forEach((count, speaker) => {
if(count > maxWords) {
maxWords = count;
bestSpeaker = speaker;
}
});
return {speaker: bestSpeaker, text: sentence};
}).filter(s => s !== null);
// Merge adjacent sentences from same speaker
const merged: Array<{speaker: number, text: string}> = [];
sentencesWithSpeakers.forEach(item => {
const last = merged[merged.length - 1];
if(last && last.speaker === item.speaker) {
last.text += ' ' + item.text;
} else {
merged.push({...item});
}
});
let transcript = merged.map(item => `[Speaker ${item.speaker}]: ${item.text}`).join('\n').trim();
if(!llm) return transcript;
let chunks = this.ai.language.chunk(transcript, 500, 0);
if(chunks.length > 4) chunks = [...chunks.slice(0, 3), <string>chunks.at(-1)];
await this.ai.language.ask(chunks.join('\n'), {
system: 'Read the following transcript and attempt to identify every speaker. For every positively identified speaker, call the \`identify\` tool with the speaker\'s ID number & the identified name exactly once.',
temperature: 0.1,
tools: [
{name: 'identify', description: 'Identify a speaker', args: {
speaker: {type: 'number', description: 'Speaker number', required: true},
name: {type: 'string', description: 'Inferred name', required: true},
}, fn: ({speaker, name}) => {
transcript = transcript.replaceAll(`[Speaker ${speaker}]`, `[${name}]`);
}}
]
});
return transcript;
}
private runAsr(file: string, opts: {model?: string, diarization?: boolean} = {}): AbortablePromise<any> {
let proc: any;
const p = new Promise<any>((resolve, reject) => {
this.downloadAsrModel(opts.model).then(m => {
if(opts.diarization) {
let output = join(Path.dirname(file), 'transcript');
proc = spawn(<string>this.ai.options.whisper,
['-m', m, '-f', file, '-np', '-ml', '1', '-oj', '-of', output],
{stdio: ['ignore', 'ignore', 'pipe']}
);
proc.on('error', (err: Error) => reject(err));
proc.on('close', async (code: number) => {
if(code === 0) {
output = await fs.readFile(output + '.json', 'utf-8');
fs.rm(output + '.json').catch(() => { });
try { resolve(JSON.parse(output)); }
catch(e) { reject(new Error('Failed to parse whisper JSON')); }
} else {
reject(new Error(`Exit code ${code}`));
}
});
} else {
let output = '';
proc = spawn(<string>this.ai.options.whisper, ['-m', m, '-f', file, '-np', '-nt']);
proc.on('error', (err: Error) => reject(err));
proc.stdout.on('data', (data: Buffer) => output += data.toString());
proc.on('close', async (code: number) => {
if(code === 0) {
resolve(output.trim() || null);
} else {
reject(new Error(`Exit code ${code}`));
}
});
}
});
});
return Object.assign(p, {abort});
return <any>Object.assign(p, {abort: () => proc?.kill('SIGTERM')});
}
private runDiarization(file: string): AbortablePromise<any> {
let aborted = false, abort = () => { aborted = true; };
const checkPython = (cmd: string) => {
return new Promise<boolean>((resolve) => {
const proc = spawn(cmd, ['-W', 'ignore', '-c', 'import pyannote.audio']);
proc.on('close', (code: number) => resolve(code === 0));
proc.on('error', () => resolve(false));
});
};
const p = Promise.all<any>([
checkPython('python'),
checkPython('python3'),
]).then(<any>(async ([p, p3]: [boolean, boolean]) => {
if(aborted) return;
if(!p && !p3) throw new Error('Pyannote is not installed: pip install pyannote.audio');
const binary = p3 ? 'python3' : 'python';
return new Promise((resolve, reject) => {
if(aborted) return;
let output = '';
const proc = spawn(binary, ['-W', 'ignore', '-c', this.pyannote, file]);
proc.stdout.on('data', (data: Buffer) => output += data.toString());
proc.stderr.on('data', (data: Buffer) => console.error(data.toString()));
proc.on('close', (code: number) => {
if(code === 0) {
try { resolve(JSON.parse(output)); }
catch (err) { reject(new Error('Failed to parse diarization output')); }
} else {
reject(new Error(`Python process exited with code ${code}`));
}
});
proc.on('error', reject);
abort = () => proc.kill('SIGTERM');
});
}));
return <any>Object.assign(p, {abort});
}
asr(path: string, options: { model?: string; diarization?: boolean | 'llm' } = {}): AbortablePromise<string | null> {
if(!this.ai.options.whisper) throw new Error('Whisper not configured');
const tmp = join(mkdtempSync(join(tmpdir(), 'audio-')), 'converted.wav');
execSync(`ffmpeg -i "${path}" -ar 16000 -ac 1 -f wav "${tmp}"`, { stdio: 'ignore' });
const clean = () => fs.rm(Path.dirname(tmp), {recursive: true, force: true}).catch(() => {});
if(!options.diarization) return this.runAsr(tmp, {model: options.model});
const timestamps = this.runAsr(tmp, {model: options.model, diarization: true});
const diarization = this.runDiarization(tmp);
let aborted = false, abort = () => {
aborted = true;
timestamps.abort();
diarization.abort();
clean();
};
const response = Promise.allSettled([timestamps, diarization]).then(async ([ts, d]) => {
if(ts.status == 'rejected') throw new Error('Whisper.cpp timestamps:\n' + ts.reason);
if(d.status == 'rejected') throw new Error('Pyannote:\n' + d.reason);
if(aborted || !options.diarization) return ts.value;
return this.diarizeTranscript(ts.value, d.value, options.diarization == 'llm');
}).finally(() => clean());
return <any>Object.assign(response, {abort});
}
async downloadAsrModel(model: string = this.whisperModel): Promise<string> {
if(!this.ai.options.whisper?.binary) throw new Error('Whisper not configured');
if(!this.ai.options.whisper) throw new Error('Whisper not configured');
if(!model.endsWith('.bin')) model += '.bin';
const p = Path.join(<string>this.ai.options.path, model);
if(await fs.stat(p).then(() => true).catch(() => false)) return p;

View File

@@ -1,11 +1,13 @@
import { pipeline } from '@xenova/transformers';
import { parentPort } from 'worker_threads';
import { pipeline } from '@huggingface/transformers';
let model: any;
const [modelDir, model] = process.argv.slice(2);
parentPort?.on('message', async ({ id, text }) => {
if(!model) model = await pipeline('feature-extraction', 'Xenova/all-MiniLM-L6-v2');
const output = await model(text, { pooling: 'mean', normalize: true });
let text = '';
process.stdin.on('data', chunk => text += chunk);
process.stdin.on('end', async () => {
const embedder = await pipeline('feature-extraction', 'Xenova/' + model, {cache_dir: modelDir});
const output = await embedder(text, { pooling: 'mean', normalize: true });
const embedding = Array.from(output.data);
parentPort?.postMessage({ id, embedding });
process.stdout.write(JSON.stringify({embedding}));
process.exit();
});

View File

@@ -1,8 +1,8 @@
export * from './ai';
export * from './antrhopic';
export * from './audio';
export * from './embedder'
export * from './llm';
export * from './memory';
export * from './open-ai';
export * from './provider';
export * from './tools';

334
src/kd-tree.ts Normal file
View File

@@ -0,0 +1,334 @@
export type DistanceMetric = "euclidean" | "cosine";
export interface KDPoint<T = unknown> {
vector: number[];
payload: T;
}
export interface KNNResult<T = unknown> {
point: KDPoint<T>;
distance: number;
}
interface KDNode<T> {
point: KDPoint<T>;
axis: number;
left: KDNode<T> | null;
right: KDNode<T> | null;
}
// ─── Distance helpers ─────────────────────────────────────────────────────────
function euclidean(a: number[], b: number[]): number {
let sum = 0;
for (let i = 0; i < a.length; i++) {
const d = a[i] - b[i];
sum += d * d;
}
return Math.sqrt(sum);
}
function cosine(a: number[], b: number[]): number {
let dot = 0, normA = 0, normB = 0;
for (let i = 0; i < a.length; i++) {
dot += a[i] * b[i];
normA += a[i] * a[i];
normB += b[i] * b[i];
}
const denom = Math.sqrt(normA) * Math.sqrt(normB);
return denom === 0 ? 1 : 1 - dot / denom; // distance = 1 - similarity
}
/**
* Keeps the k closest candidates in memory, evicts the furthest when full
*/
class BoundedMaxHeap<T> {
private heap: KNNResult<T>[] = [];
constructor(private readonly k: number) {}
get size(): number { return this.heap.length; }
get worstDistance(): number {
return this.heap.length < this.k ? Infinity : this.heap[0].distance;
}
push(item: KNNResult<T>): void {
if (this.heap.length < this.k) {
this.heap.push(item);
this.bubbleUp(this.heap.length - 1);
} else if (item.distance < this.heap[0].distance) {
this.heap[0] = item;
this.sinkDown(0);
}
}
toSortedArray(): KNNResult<T>[] {
return [...this.heap].sort((a, b) => a.distance - b.distance);
}
private bubbleUp(i: number): void {
while (i > 0) {
const parent = (i - 1) >> 1;
if (this.heap[parent].distance >= this.heap[i].distance) break;
[this.heap[parent], this.heap[i]] = [this.heap[i], this.heap[parent]];
i = parent;
}
}
private sinkDown(i: number): void {
const n = this.heap.length;
while (true) {
let largest = i;
const l = 2 * i + 1, r = 2 * i + 2;
if (l < n && this.heap[l].distance > this.heap[largest].distance) largest = l;
if (r < n && this.heap[r].distance > this.heap[largest].distance) largest = r;
if (largest === i) break;
[this.heap[largest], this.heap[i]] = [this.heap[i], this.heap[largest]];
i = largest;
}
}
}
/**
* K-D Tree for efficient nearest-neighbor search over high-dimensional vectors / embeddings.
*
* Supports:
* - Insertion of labeled points
* - k-nearest-neighbor (KNN) search
* - Radius search (all points within a given distance)
* - Euclidean and cosine distance metrics
* - Bulk construction (balanced tree) for best query performance
*/
export class KDTree<T = unknown> {
private root: KDNode<T> | null = null;
private _size = 0;
private readonly dims: number;
private readonly distanceFn: (a: number[], b: number[]) => number;
/**
* @param dims Dimensionality of all vectors (must be consistent).
* @param metric Distance metric to use. Default: "euclidean".
* @param points Optional initial set of points. Builds a balanced tree
* in O(n log² n) — prefer this over inserting one-by-one
* when you have a large corpus.
*/
constructor(
dims: number,
metric: DistanceMetric = "euclidean",
points?: KDPoint<T>[]
) {
this.dims = dims;
this.distanceFn = metric === "cosine" ? cosine : euclidean;
if (points && points.length > 0) {
this.validateAll(points);
this.root = this.buildBalanced([...points], 0);
this._size = points.length;
}
}
/** Total number of points stored in the tree. */
get size(): number { return this._size; }
// ── Insertion ──────────────────────────────────────────────────────────────
/**
* Insert a single point. O(log n) average, O(n) worst case on skewed data.
* For bulk loading prefer passing points to the constructor.
*/
insert(point: KDPoint<T>): void {
this.validate(point);
this.root = this.insertNode(this.root, point, 0);
this._size++;
}
// ── KNN search ─────────────────────────────────────────────────────────────
/**
* Find the k nearest neighbors to `query`.
* Returns results sorted by distance ascending.
*/
knn(query: number[], k: number): KNNResult<T>[] {
if (k <= 0) throw new RangeError("k must be a positive integer");
this.validateVector(query);
const heap = new BoundedMaxHeap<T>(k);
this.searchKNN(this.root, query, k, heap, 0);
return heap.toSortedArray();
}
/**
* Nearest single neighbor. Convenience wrapper around knn(query, 1).
* Returns null if the tree is empty.
*/
nearest(query: number[]): KNNResult<T> | null {
const results = this.knn(query, 1);
return results[0] ?? null;
}
// ── Radius search ──────────────────────────────────────────────────────────
/**
* Return all points whose distance to `query` is ≤ `radius`,
* sorted by distance ascending.
*/
radiusSearch(query: number[], radius: number): KNNResult<T>[] {
if (radius < 0) throw new RangeError("radius must be non-negative");
this.validateVector(query);
const results: KNNResult<T>[] = [];
this.searchRadius(this.root, query, radius, results, 0);
results.sort((a, b) => a.distance - b.distance);
return results;
}
// ── Conversion ─────────────────────────────────────────────────────────────
/** Collect all points in the tree (order not guaranteed). */
toArray(): KDPoint<T>[] {
const out: KDPoint<T>[] = [];
this.collect(this.root, out);
return out;
}
/**
* Rebuild the tree from its current points as a balanced tree.
* Useful after many individual insertions to restore O(log n) query time.
*/
rebalance(): void {
const points = this.toArray();
this.root = points.length ? this.buildBalanced(points, 0) : null;
}
// ── Private: build ─────────────────────────────────────────────────────────
private buildBalanced(points: KDPoint<T>[], depth: number): KDNode<T> {
const axis = depth % this.dims;
points.sort((a, b) => a.vector[axis] - b.vector[axis]);
const mid = Math.floor(points.length / 2);
return {
point: points[mid],
axis,
left: points.slice(0, mid).length
? this.buildBalanced(points.slice(0, mid), depth + 1)
: null,
right: points.slice(mid + 1).length
? this.buildBalanced(points.slice(mid + 1), depth + 1)
: null,
};
}
// ── Private: insert ────────────────────────────────────────────────────────
private insertNode(
node: KDNode<T> | null,
point: KDPoint<T>,
depth: number
): KDNode<T> {
if (node === null) {
return { point, axis: depth % this.dims, left: null, right: null };
}
const axis = depth % this.dims;
if (point.vector[axis] < node.point.vector[axis]) {
node.left = this.insertNode(node.left, point, depth + 1);
} else {
node.right = this.insertNode(node.right, point, depth + 1);
}
return node;
}
// ── Private: KNN traversal ─────────────────────────────────────────────────
private searchKNN(
node: KDNode<T> | null,
query: number[],
k: number,
heap: BoundedMaxHeap<T>,
depth: number
): void {
if (node === null) return;
const dist = this.distanceFn(query, node.point.vector);
heap.push({ point: node.point, distance: dist });
const axis = node.axis;
const diff = query[axis] - node.point.vector[axis];
const [near, far] = diff <= 0
? [node.left, node.right]
: [node.right, node.left];
this.searchKNN(near, query, k, heap, depth + 1);
// Only explore the far side if it could contain a closer point.
// For cosine distance we can't prune by axis gap alone, so always explore.
const shouldExplore =
this.distanceFn === cosine
? true
: Math.abs(diff) < heap.worstDistance;
if (shouldExplore) {
this.searchKNN(far, query, k, heap, depth + 1);
}
}
// ── Private: radius traversal ──────────────────────────────────────────────
private searchRadius(
node: KDNode<T> | null,
query: number[],
radius: number,
results: KNNResult<T>[],
depth: number
): void {
if (node === null) return;
const dist = this.distanceFn(query, node.point.vector);
if (dist <= radius) {
results.push({ point: node.point, distance: dist });
}
const axis = node.axis;
const diff = query[axis] - node.point.vector[axis];
const [near, far] = diff <= 0
? [node.left, node.right]
: [node.right, node.left];
this.searchRadius(near, query, radius, results, depth + 1);
const shouldExplore =
this.distanceFn === cosine ? true : Math.abs(diff) <= radius;
if (shouldExplore) {
this.searchRadius(far, query, radius, results, depth + 1);
}
}
// ── Private: collect ───────────────────────────────────────────────────────
private collect(node: KDNode<T> | null, out: KDPoint<T>[]): void {
if (node === null) return;
out.push(node.point);
this.collect(node.left, out);
this.collect(node.right, out);
}
// ── Private: validation ────────────────────────────────────────────────────
private validateVector(v: number[]): void {
if (v.length !== this.dims) {
throw new TypeError(
`Vector length ${v.length} does not match tree dimensionality ${this.dims}`
);
}
}
private validate(point: KDPoint<T>): void {
this.validateVector(point.vector);
}
private validateAll(points: KDPoint<T>[]): void {
for (const p of points) this.validate(p);
}
}

View File

@@ -1,17 +1,30 @@
import {JSONAttemptParse} from '@ztimson/utils';
import {snakeCase} from '@ztimson/utils';
import {AbortablePromise, Ai} from './ai.ts';
import {Anthropic} from './antrhopic.ts';
import {OpenAi} from './open-ai.ts';
import {LLMProvider} from './provider.ts';
import {AiTool} from './tools.ts';
import {Worker} from 'worker_threads';
import {AiTool, AiToolArg} from './tools.ts';
import {fileURLToPath} from 'url';
import {dirname, join} from 'path';
import {spawn} from 'node:child_process';
import {Memory, MemoryCache, MemoryManager, MemoryOptions} from './memory.ts';
export type AnthropicConfig = {proto: 'anthropic', token: string};
export type OllamaConfig = {proto: 'ollama', host: string};
export type OpenAiConfig = {proto: 'openai', host?: string, token: string};
export type Agent = {
name: string;
description?: string;
model?: string | null;
temperature?: number;
system: string;
delegate?: boolean;
skills?: Skill[] | null;
tools?: AiTool[] | null;
mcp?: McpServer[] | null;
agents?: string[] | null;
}
export type LLMMessage = {
/** Message originator */
role: 'assistant' | 'system' | 'user';
@@ -31,12 +44,18 @@ export type LLMMessage = {
/** Tool result */
content: undefined | string;
/** Tool error */
error: undefined | string;
error?: undefined | string;
/** Timestamp */
timestamp?: number;
/** Response duration in ms */
duration?: number;
/** Tokens per second */
tps?: number;
}
export type LLMRequest = {
/** Return a parsed JSON object that matches the schema */
schema?: AiToolArg;
/** System prompt */
system?: string;
/** Message history */
@@ -52,57 +71,328 @@ export type LLMRequest = {
/** Stream response */
stream?: (chunk: {text?: string, tool?: string, done?: true}) => any;
/** Compress old messages in the chat to free up context */
compress?: {
/** Trigger chat compression once context exceeds the token count */
max: number;
/** Compress chat until context size smaller than */
min: number
}
compress?: {max: number; min: number};
/** User's memory documents - RAG injected automatically each turn */
memory?: Memory[] | MemoryCache | MemoryOptions;
/** Model to use for memory operations */
memoryModel?: string;
/** Skill documents the AI can browse and read on demand */
skills?: Skill[];
/** MCP servers to connect and expose as tools */
mcp?: McpServer[];
/** Subagents exposed as delegatable/wrapped tools */
agents?: Agent[];
/** @internal recursion guard for nested agent delegation */
_agentDepth?: number;
}
export class LLM {
private embedWorker: Worker | null = null;
private embedQueue = new Map<number, { resolve: (value: number[]) => void; reject: (error: any) => void }>();
private embedId = 0;
private models: {[model: string]: LLMProvider} = {};
private defaultModel!: string;
export type McpServer = {
/** MCP server name for humans */
name: string;
/** Host URL */
host: string;
/** Server access token */
token?: string;
}
export type Skill = {
/** Name of skill for humans */
name: string;
/** Description LLM will use to decide to learn a skill */
description: string;
/** Skill instructions */
content: string;
}
const MAX_AGENT_DEPTH = 5;
class LLM {
private memoryManager!: MemoryManager;
defaultModel!: string;
models: {[model: string]: LLMProvider} = {};
constructor(public readonly ai: Ai) {
this.embedWorker = new Worker(join(dirname(fileURLToPath(import.meta.url)), 'embedder.js'));
this.embedWorker.on('message', ({ id, embedding }) => {
const pending = this.embedQueue.get(id);
if (pending) {
pending.resolve(embedding);
this.embedQueue.delete(id);
}
});
if(!ai.options.llm?.models) return;
Object.entries(ai.options.llm.models).forEach(([model, config]) => {
if(!this.defaultModel) this.defaultModel = model;
if(config.proto == 'anthropic') this.models[model] = new Anthropic(this.ai, config.token, model);
else if(config.proto == 'ollama') this.models[model] = new OpenAi(this.ai, config.host, 'not-needed', model);
else if(config.proto == 'openai') this.models[model] = new OpenAi(this.ai, config.host || null, config.token, model);
});
this.memoryManager = new MemoryManager(this);
}
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 {
name: toolName,
description: `${a.delegate ? 'Delegate to ' : ''}Subagent: ${a.description || a.name}`,
args: {
context: {type: 'string', description: 'Summary of related messages, samples, files, etc...', required: true},
instructions: {type: 'string', description: 'Detailed instructions for subagent to complete', required: true},
},
fn: async (args: any, stream: any, ai: any, id?: string) => {
if(depth >= MAX_AGENT_DEPTH) return 'Max agent delegation depth exceeded';
const subHistory: LLMMessage[] = [];
// Opt-in only, self always excluded regardless of whitelist
const nested = (a.agents || [])
.map(name => allAgents.find(x => x.name === name))
.filter((x): x is Agent => !!x && x.name !== a.name);
const start = Date.now();
const request = this.ask(`${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.
${a.system}`,
model: a.model || undefined,
temperature: a.temperature,
stream: a.delegate ? stream : undefined,
history: subHistory,
mcp: a.mcp || undefined,
skills: a.skills || undefined,
tools: a.tools || undefined,
agents: nested,
_agentDepth: depth + 1,
} as any);
aborts.push(request.abort);
const resp = await request;
const duration = Date.now() - start;
const assistantTurns = subHistory.filter((h: any) => h.role === 'assistant' && h.duration);
const genTime = assistantTurns.reduce((s, h: any) => s + h.duration, 0);
const genTokens = assistantTurns.reduce((s, h: any) => s + (h.tps || 0) * (h.duration / 1000), 0);
const tps = genTime > 0 ? genTokens / (genTime / 1000) : 0;
if(a.delegate) {
pending.set(<string>id, {resp, subHistory, duration, tps});
return '';
}
return resp;
}
};
});
}
/**
* Chat with LLM
* @param {string} message Question
* @param {LLMRequest} options Configuration options and chat history
* @returns {{abort: () => void, response: Promise<LLMMessage[]>}} Function to abort response and chat history
*/
ask(message: string, options: LLMRequest = {}): AbortablePromise<LLMMessage[]> {
private async setupMcp(servers: McpServer[] = []): Promise<{prompt: string, tools: AiTool[]}> {
if(!servers?.length) return {prompt: '', tools: []};
const allTools: AiTool[] = [];
await Promise.all(servers.map(async server => {
const res = await fetch(`${server.host}/tools`, {headers: server.token ? {Authorization: `Bearer ${server.token}`} : {}});
const mcp: any = await res.json();
if(!mcp?.tools) return;
for(const t of mcp.tools) {
const args: Record<string, any> = {};
if(t.inputSchema?.properties) {
for(const [key, val] of Object.entries<any>(t.inputSchema.properties)) {
args[key] = {type: val.type || 'string', description: val.description || '', required: t.inputSchema.required?.includes(key)};
}
}
allTools.push({
name: `${server.name}_${t.name}`,
description: t.description || '',
args,
fn: async (a: any) => {
const r = await fetch(`${server.host}/tools/call`, {
method: 'POST',
headers: {'Content-Type': 'application/json', ...(server.token ? {Authorization: `Bearer ${server.token}`} : {})},
body: JSON.stringify({name: t.name, arguments: a})
});
const data: any = await r.json();
return data?.content?.[0]?.text ?? JSON.stringify(data);
}
});
}
}));
const list = allTools.map(t => `- ${t.name}: ${t.description}`).join('\n');
return {
prompt: `You have access to the following MCP tools:\n${list}`,
tools: allTools
};
}
private setupSkills(skills: Skill[] = []): {prompt: string, tools: AiTool[]} {
if(!skills?.length) return {prompt: '', tools: []};
const list = skills.map(s => `- ${s.name}: ${s.description}`).join('\n');
return {
prompt: `You have access to the following skill documents, use \`read_skill\` to access them:\n${list}`,
tools: [{
name: 'skill_read',
description: 'Read the full content of a skill/knowledge document',
args: {
name: {type: 'string', description: 'Exact skill name', required: true}
},
fn: (args: any) => {
const skill = skills.find(s => s.name === args.name);
if(!skill) return `Skill not found. Available:\n${list}`;
return `# ${skill.name}\n${skill.content}`;
}
}]
}
}
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: '',
...this.ai.options.llm,
models: undefined,
history: [],
...options,
}
const m = options.model || this.defaultModel;
if(!this.models[m]) throw new Error(`Model does not exist: ${m}`);
return this.models[m].ask(message, options);
let request: AbortablePromise<string> | null = null;
let aborted = false;
const nestedAborts: (() => void)[] = [];
const abort = () => {
aborted = true;
request?.abort?.();
nestedAborts.forEach(a => a());
};
const promise = (async () => {
let tools: AiTool[] = options.tools || this.ai.options.llm?.tools || [];
const prompts: string[] = [];
let history = options.history || [];
// MCP
const mcp = options.mcp || this.ai.options?.llm?.mcp;
if(mcp?.length) {
const m = await this.setupMcp(mcp);
prompts.unshift(m.prompt);
tools.push(...m.tools);
}
// Skills
const skills = options.skills || this.ai.options?.llm?.skills;
if(skills?.length) {
const s = this.setupSkills(skills);
prompts.unshift(s.prompt);
tools.push(...s.tools);
}
// Agents
const agents = options.agents || this.ai.options?.llm?.agents;
const pendingDelegates = new Map<string, any>();
if(agents?.length) tools.push(...this.setupAgent(agents, agents, pendingDelegates, nestedAborts, options._agentDepth || 0));
// Memory
const mem = MemoryManager.normalize(options.memory);
if(mem) {
const mems = mem.memory instanceof MemoryCache ? mem.memory.memories : mem.memory;
if(mems.length) {
if(mem.inject) {
const pool = 15; // candidates considered, cheap since only refs are listed
const budget = mem.maxTokens ?? 2000; // actual content injected
const relevant = await this.memoryManager.recollect(message, mem.memory, pool);
let used = 0;
const preloaded: typeof relevant = [];
const listed: typeof relevant = [];
for(const r of relevant) {
const t = this.estimateTokens(r.content);
if(used + t <= budget || preloaded.length === 0) {
preloaded.push(r);
used += t;
} else listed.push(r);
}
prompts.unshift(`You have access to the following memory files:
${mems.map(m => `- ${m.name}: ${m.description}`).join('\n')}
${preloaded.length ? `
Relevant memories have been preloaded:
${preloaded.map(r => `
**${r.name}**
${r.description}
${r.content}
`).join('\n---\n')}
` : ''}${listed.length ? `
Also relevant but not preloaded (use \`memory_recall\`): ${listed.map(r => r.name).join(', ')}
` : ''}`.trim());
}
if(mem.tool) tools.push(this.memoryManager.tools.read(mem.memory));
}
}
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: 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;
}
}
// If the orchestrator added no commentary of its own, its answer IS the delegate's answer
if(typeof resp === 'string' && !resp.trim() && lastDelegateResp !== null) resp = lastDelegateResp;
// Trim memory injections from history
if(mem?.tool) history.splice(0, history.length, ...history.filter(h => h.role !== 'tool' || h.name !== 'memory_recall'));
// Auto-memorize before compressing
if(options.compress && this.estimateTokens(history) >= options.compress.max) {
if(mem?.update) await this.memoryManager.memorize(history, mem.memory, {model: options.memoryModel || this.defaultModel, ...options});
const compressed = await this.compressHistory(history, options.compress.max, options.compress.min, options);
if(options.history) options.history.splice(0, options.history.length, ...compressed);
}
return resp;
})();
return Object.assign(promise, {abort});
}
/**
* Digest full conversation history into memory documents.
* Call on session end to persist the conversation.
*/
async updateMemory(history: LLMMessage[], memories: Memory[] | MemoryCache, options: LLMRequest = {}): Promise<Memory[]> {
return this.memoryManager.memorize(history, memories, {model: this.defaultModel, ...options});
}
/**
* Compress chat history to reduce context size
* @param {LLMMessage[]} history Chatlog that will be compressed
* @param max Trigger compression once context is larger than max
* @param min Summarize until context size is less than min
* @param min Leave messages less than the token minimum, summarize the rest
* @param {LLMRequest} options LLM options
* @returns {Promise<LLMMessage[]>} New chat history will summary at index 0
*/
@@ -115,12 +405,23 @@ export class LLM {
else break;
}
if(history.length <= keep) return history;
const recent = keep == 0 ? [] : history.slice(-keep),
const system = history[0].role == 'system' ? history[0] : null,
recent = keep == 0 ? [] : history.slice(-keep),
process = (keep == 0 ? history : history.slice(0, -keep)).filter(h => h.role === 'assistant' || h.role === 'user');
const summary = await this.summarize(process.map(m => `${m.role}: ${m.content}`).join('\n\n'), 250, options);
return [{role: 'assistant', content: `Conversation Summary: ${summary}`, timestamp: Date.now()}, ...recent];
const summary: any = await this.summarize(process.map(m => `[${m.role}]: ${m.content}`).join('\n\n'), 500, options);
const d = Date.now();
const h = [{role: <any>'tool', name: 'summary', id: `summary_` + d, args: {}, content: `Conversation Summary: ${summary?.summary}`, timestamp: d}, ...recent];
if(system) h.splice(0, 0, system);
return h;
}
/**
* Compare the difference between embeddings (calculates the angle between two vectors)
* @param {number[]} v1 First embedding / vector comparison
* @param {number[]} v2 Second embedding / vector for comparison
* @returns {number} Similarity values 0-1: 0 = unique, 1 = identical
*/
cosineSimilarity(v1: number[], v2: number[]): number {
if (v1.length !== v2.length) throw new Error('Vectors must be same length');
let dotProduct = 0, normA = 0, normB = 0;
@@ -133,6 +434,13 @@ export class LLM {
return denominator === 0 ? 0 : dotProduct / denominator;
}
/**
* Chunk text into parts for AI digestion
* @param {object | string} target Item that will be chunked (objects get converted)
* @param {number} maxTokens Chunking size. More = better context, less = more specific (Search by paragraphs or lines)
* @param {number} overlapTokens Includes previous X tokens to provide continuity to AI (In addition to max tokens)
* @returns {string[]} Chunked strings
*/
chunk(target: object | string, maxTokens = 500, overlapTokens = 50): string[] {
const objString = (obj: any, path = ''): string[] => {
if(!obj) return [];
@@ -142,8 +450,7 @@ export class LLM {
return `${p}: ${Array.isArray(value) ? value.join(', ') : value}`;
});
};
const lines = typeof target === 'object' ? objString(target) : target.split('\n');
const lines = typeof target === 'object' ? objString(target) : target.toString().split('\n');
const tokens = lines.flatMap(l => [...l.split(/\s+/).filter(Boolean), '\n']);
const chunks: string[] = [];
for(let i = 0; i < tokens.length;) {
@@ -161,22 +468,58 @@ export class LLM {
return chunks;
}
embedding(target: object | string, maxTokens = 500, overlapTokens = 50) {
/**
* Create a vector representation of a string
* @param {object | string} target Item that will be embedded (objects get converted)
* @param {maxTokens?: number, overlapTokens?: number} opts Options for embedding such as chunk sizes
* @returns {Promise<Awaited<{index: number, embedding: number[], text: string, tokens: number}>[]>} Chunked embeddings
*/
embedding(target: object | string, opts: {maxTokens?: number, overlapTokens?: number} = {}): AbortablePromise<{index: number, embedding: number[], text: string, tokens: number}[]> {
let {maxTokens = 500, overlapTokens = 50} = opts;
let aborted = false;
const abort = () => { aborted = true; };
const embed = (text: string): Promise<number[]> => {
return new Promise((resolve, reject) => {
const id = this.embedId++;
this.embedQueue.set(id, { resolve, reject });
this.embedWorker?.postMessage({ id, text });
if(aborted) return reject(new Error('Aborted'));
const args: string[] = [
join(dirname(fileURLToPath(import.meta.url)), 'embedder.js'),
<string>this.ai.options.path,
this.ai.options?.embedder || 'bge-small-en-v1.5'
];
const proc = spawn('node', args, {stdio: ['pipe', 'pipe', 'ignore']});
proc.stdin.write(text);
proc.stdin.end();
let output = '';
proc.stdout.on('data', (data: Buffer) => output += data.toString());
proc.on('close', (code: number) => {
if(aborted) return reject(new Error('Aborted'));
if(code === 0) {
try {
const result = JSON.parse(output);
resolve(result.embedding);
} catch(err) {
reject(err);
}
} else {
reject(new Error(`Embedder process exited with code ${code}`));
}
});
proc.on('error', reject);
});
};
const chunks = this.chunk(target, maxTokens, overlapTokens);
return Promise.all(chunks.map(async (text, index) => ({
index,
embedding: await embed(text),
text,
tokens: this.estimateTokens(text),
})));
const p = (async () => {
const chunks = this.chunk(target, maxTokens, overlapTokens), results: any[] = [];
for(let i = 0; i < chunks.length; i++) {
if(aborted) break;
const text = chunks[i];
const embedding = await embed(text);
results.push({index: i, embedding, text, tokens: this.estimateTokens(text)});
}
return results;
})();
return <any>Object.assign(p, {abort});
}
/**
@@ -191,45 +534,95 @@ export class LLM {
/**
* Compare the difference between two strings using tensor math
* @param target Text that will checked
* @param target Text that will be checked
* @param {string} searchTerms Multiple search terms to check against target
* @returns {{avg: number, max: number, similarities: number[]}} Similarity values 0-1: 0 = unique, 1 = identical
*/
fuzzyMatch(target: string, ...searchTerms: string[]) {
if(searchTerms.length < 2) throw new Error('Requires at least 2 strings to compare');
const vector = (text: string, dimensions: number = 10): number[] => {
return text.toLowerCase().split('').map((char, index) =>
(char.charCodeAt(0) * (index + 1)) % dimensions / dimensions).slice(0, dimensions);
}
const v = vector(target);
const similarities = searchTerms.map(t => vector(t)).map(refVector => this.cosineSimilarity(v, refVector))
return {avg: similarities.reduce((acc, s) => acc + s, 0) / similarities.length, max: Math.max(...similarities), similarities}
}
/**
* Ask a question with JSON response
* @param {string} message Question
* @param {LLMRequest} options Configuration options and chat history
* @returns {Promise<{} | {} | RegExpExecArray | null>}
*/
async json(message: string, options?: LLMRequest) {
let resp = await this.ask(message, {
system: 'Respond using a JSON blob',
...options
});
if(!resp?.[0]?.content) return {};
return JSONAttemptParse(new RegExp('\{[\s\S]*\}').exec(resp[0].content), {});
fuzzyMatch(target, ...searchTerms) {
if (searchTerms.length < 2) throw new Error('Requires at least 2 strings to compare');
const levenshtein = (a, b) => {
const m = a.length, n = b.length;
if (!m) return n;
if (!n) return m;
const dp = Array.from({length: m + 1}, (_, i) => [i, ...Array(n).fill(0)]);
for (let j = 0; j <= n; j++) dp[0][j] = j;
for (let i = 1; i <= m; i++) {
for (let j = 1; j <= n; j++) {
dp[i][j] = a[i - 1] === b[j - 1]
? dp[i - 1][j - 1]
: 1 + Math.min(dp[i - 1][j - 1], dp[i - 1][j], dp[i][j - 1]);
}
}
return dp[m][n];
};
const similarity = (a, b) => {
a = a.toLowerCase(); b = b.toLowerCase();
return 1 - levenshtein(a, b) / Math.max(a.length, b.length, 1);
};
const similarities = searchTerms.map(t => similarity(target, t));
return {
avg: similarities.reduce((acc, s) => acc + s, 0) / similarities.length,
max: Math.max(...similarities),
similarities
};
}
/**
* Create a summary of some text
* @param {string} text Text to summarize
* @param {number} tokens Max number of tokens
* @param {number} length Max number of words
* @param options LLM request options
* @returns {Promise<string>} Summary
*/
summarize(text: string, tokens: number, options?: LLMRequest): Promise<string | null> {
return this.ask(text, {system: `Generate a brief summary <= ${tokens} tokens. Output nothing else`, temperature: 0.3, ...options})
.then(history => <string>history.pop()?.content || null);
async summarize(text: string, length: number = 500, options?: LLMRequest): Promise<string | null> {
let system = `Your job is to summarize the users message using tool calls. Call the \`submit\` tool at least once with the shortest summary possible that's <= ${length} words. The tool call will respond with the token count. Responses are ignored`;
if(options?.system) system += '\n\n' + options.system;
return new Promise(async (resolve, reject) => {
let done = false;
const resp = await this.ask(text, {
temperature: 0.3,
...options,
system,
tools: [{
name: 'submit',
description: 'Submit summary',
args: {summary: {type: 'string', description: 'Text summarization', required: true}},
fn: (args) => {
if(!args.summary) return 'No summary provided';
const count = args.summary.split(' ').length;
if(count > length) return `Too long: ${length} words`;
done = true;
resolve(args.summary || null);
return `Saved: ${length} words`;
}
}, ...(options?.tools || [])],
});
if(!done) reject(`AI failed to create summary:\n${resp}`);
});
}
addModel(name: string, config: AnthropicConfig | OpenAiConfig, setDefault = false) {
if(config.proto == 'anthropic') this.models[name] = new Anthropic(this.ai, config.token, name);
else if(config.proto == 'openai') this.models[name] = new OpenAi(this.ai, config.host || null, config.token, name);
if(setDefault || !this.defaultModel) this.defaultModel = name;
}
removeModel(name: string) {
delete this.models[name];
if(this.defaultModel === name) {
this.defaultModel = Object.keys(this.models)[0] ?? '';
}
}
setModels(models: {[model: string]: AnthropicConfig | OpenAiConfig}, replace = true) {
if(replace) this.models = {};
Object.entries(models).forEach(([model, config]) => {
if(!this.defaultModel) this.defaultModel = model;
if(config.proto == 'anthropic') this.models[model] = new Anthropic(this.ai, config.token, model);
else if(config.proto == 'openai') this.models[model] = new OpenAi(this.ai, config.host || null, config.token, model);
});
this.defaultModel = Object.keys(this.models)[0] ?? '';
}
}
export default LLM;

575
src/memory.ts Normal file
View File

@@ -0,0 +1,575 @@
import {LLMRequest, LLMMessage} from './llm.ts';
import {AiTool} from './tools.ts';
import {KDPoint, KDTree} from './kd-tree.ts';
export class MemoryCache {
private tree: KDTree<MemoryRef>;
public memories: Memory[];
get length() { return this.memories.length; }
constructor(memories: Memory[]) {
this.memories = memories;
this.tree = this.buildTree();
}
private buildTree(): KDTree<MemoryRef> {
const embedded = this.memories.filter(m => m.embedding?.length);
if (!embedded.length) return new KDTree<MemoryRef>(0);
const dims = embedded[0].embedding.length;
const points: KDPoint<MemoryRef>[] = embedded.map(m => ({
vector: m.embedding,
payload: {name: m.name, description: m.description},
}));
return new KDTree<MemoryRef>(dims, 'cosine', points);
}
search(query: number[], limit: number): MemoryRef[] {
const results = this.tree.knn(query, limit);
return results.map(r => r.point.payload);
}
add(memory: Memory): void {
this.memories.push(memory);
this.rebuild();
}
update(memory: Memory): void {
const idx = this.memories.findIndex(m => m.name === memory.name);
if (idx !== -1) {
this.memories[idx] = memory;
} else {
this.memories.push(memory);
}
this.rebuild();
}
remove(name: string): void {
const idx = this.memories.findIndex(m => m.name === name);
if (idx !== -1) {
this.memories.splice(idx, 1);
this.rebuild();
}
}
rebuild(): void {
this.tree = this.buildTree();
}
}
export type MemoryOptions = {
/** Memory object */
memory: Memory[] | MemoryCache;
/** Inject N memories into the system prompt */
inject?: boolean;
/** expose recall tool to LLM */
tool?: boolean;
/** Update memory on compression */
update?: boolean;
/** Max context size of memories to inject to each call (removed immediately after use) */
maxTokens?: number;
}
export type Memory = {
name: string;
description: string;
content: string;
embedding: number[];
}
export type MemoryRef = {
name: string;
description: string;
}
export type FactBucket = {
subject: string;
facts: string[];
}
export type MemoryNode = {
name: string;
missing: boolean;
links: string[];
backlinks: string[];
}
function extractLinks(content: string): string[] {
if(!content) return [];
const matches = content.matchAll(/\[\[([^\]]+)\]\]/g);
return [...new Set([...matches].map(m => m[1].trim()))];
}
export function extractMetadata(content: string): {links: string[], backlinks: string[]} {
const match = content.match(/^---\n([\s\S]*?)\n---/);
if (!match) return {links: [], backlinks: []};
const fm = match[1];
const getList = (key: string): string[] => {
const m = fm.match(new RegExp(`^${key}:\\s*\\[(.*)\\]$`, 'm'));
if (!m || !m[1].trim()) return [];
return m[1].split(',').map(s => s.trim().replace(/^"|"$/g, '')).filter(Boolean);
};
return {
links: getList('links'),
backlinks: getList('backlinks'),
};
}
function dedupeFacts(facts: string[]): string[] {
const seen = new Map<string, string>();
for (const f of facts) {
const clean = f.trim();
if (clean) seen.set(clean.toLowerCase(), clean);
}
return [...seen.values()];
}
function cosineDistance(a: number[], b: number[]): number {
let dot = 0, normA = 0, normB = 0;
for (let i = 0; i < a.length; i++) {
dot += a[i] * b[i];
normA += a[i] * a[i];
normB += b[i] * b[i];
}
const denom = Math.sqrt(normA) * Math.sqrt(normB);
return denom === 0 ? 1 : 1 - dot / denom;
}
function getWeekMonday(date: Date = new Date()): string {
const d = new Date(Date.UTC(date.getFullYear(), date.getMonth(), date.getDate()));
const day = d.getUTCDay();
const diff = day === 0 ? -6 : 1 - day;
d.setUTCDate(d.getUTCDate() + diff);
return d.toISOString().slice(0, 10);
}
function getWeekSunday(monday: string): string {
const d = new Date(`${monday}T00:00:00Z`);
d.setUTCDate(d.getUTCDate() + 6);
return d.toISOString().slice(0, 10);
}
export class MemoryManager {
private recentlyTouched = new Map<string, number>();
private pendingMemorizations = new Map<string, {
memories: Memory[] | MemoryCache,
tempMemoryName: string,
timestamp: number,
}>();
private queues = new Map<string, {
pending: string[],
request: {abort?: () => void} | null,
task: Promise<void>,
}>();
tools = {
read: (memories: Memory[] | MemoryCache): AiTool => ({
name: 'memory_recall',
description: 'Read the full content of a memory document',
args: {
name: {type: 'string', description: 'Exact memory name', required: true},
},
fn: (args: any) => {
const mems = memories instanceof MemoryCache ? memories.memories : memories;
const mem = mems.find(m => m.name === args.name);
if (!mem) return 'Document not found';
this.touch(mem.name);
return mem.content;
},
}),
forget: (memories: Memory[] | MemoryCache): AiTool => ({
name: 'memory_forget',
description: 'Permanently delete a memory document and clean up all references to it',
args: {
name: {type: 'string', description: 'Exact memory name to forget', required: true}
},
fn: (args: any) => {
const result = this.forget(args.name, memories);
return result ? `Forgotten: ${args.name}` : `Not found: ${args.name}`;
},
}),
};
constructor(private llm: any) {}
static normalize(m?: Memory[] | MemoryCache | MemoryOptions) {
if(!m) return null;
const raw = m instanceof MemoryCache || Array.isArray(m);
return raw ? {memory: <Memory[] | MemoryCache>m, inject: true, tool: true, update: true} : {inject: true, tool: true, update: true, ...m};
}
private async createTempMemory(conversation: string): Promise<Memory> {
const timestamp = Date.now();
const content = `---
name: _temp_${timestamp}
description: Temporary memory - processing in background
tags: [_temporary]
links: []
backlinks: []
modified: ${new Date().toISOString()}
---
# Recent Conversation (Processing)
${conversation}`;
const [e] = await this.llm.embedding(content);
return {
name: `_temp_${timestamp}`,
description: 'Temporary memory - processing in background',
content,
embedding: e?.embedding || [],
};
}
private applyHeader(content: string, header: string): string {
return `${header}\n\n${this.stripHeader(content)}`;
}
private async backgroundMemorization(conversation: string, memories: Memory[] | MemoryCache, options: LLMRequest, tempName: string): Promise<void> {
const mem = memories instanceof MemoryCache ? memories.memories : memories;
const monday = getWeekMonday();
const sunday = getWeekSunday(monday);
const buckets = await this.factAgent(conversation, mem, options, monday);
if(!buckets.length) return;
const jobs = [...buckets].map(({subject, facts}) => {
let node = mem.find(m => m.name === subject);
if(!node) {
node = {name: subject, description: '', content: '', embedding: [],};
mem.push(node);
}
const week = subject.startsWith('Journal/') ? {monday, sunday} : undefined;
return this.enqueue(node, facts, mem, options, tempName, week);
});
await Promise.all(jobs);
}
private buildHeader(node: Memory, week?: {monday: string, sunday: string}, links: string[] = [], backlinks: string[] = []): string {
const tags = node.name.split('/')[0]?.toLowerCase();
const lines = [
'---',
`name: ${node.name}`,
`description: ${node.description || ''}`,
tags ? `tags: [${tags}]` : '',
links.length ? `links: [${links.map(l => `"${l}"`).join(', ')}]` : 'links: []',
backlinks.length ? `backlinks: [${backlinks.map(l => `"${l}"`).join(', ')}]` : 'backlinks: []',
week ? `week: ${week.monday} ${week.sunday}` : '',
`modified: ${new Date().toISOString()}`,
'---',
].filter(Boolean);
return lines.join('\n');
}
private cosineSearch(query: number[], memories: Memory[], limit: number): MemoryRef[] {
const scored = memories
.filter(m => m.embedding?.length)
.map(m => ({
ref: {name: m.name, description: m.description},
distance: cosineDistance(query, m.embedding),
}))
.sort((a, b) => a.distance - b.distance)
.slice(0, limit);
return scored.map(s => s.ref);
}
/**
* Coalescing queue: if a doc is already compiling, abort the in-flight run, merge its
* facts with the new ones and restart. Never blocks a pending update, never drops facts.
*/
private enqueue(node: Memory, facts: string[], memories: Memory[] | MemoryCache, options: LLMRequest, tempName: string, week?: {monday: string, sunday: string}): Promise<void> {
const key = node.name;
const existing = this.queues.get(key);
if (existing) {
existing.pending.push(...facts);
existing.request?.abort?.();
return existing.task;
}
const entry: {pending: string[], request: {abort?: () => void} | null, task: Promise<void>} = {pending: [...facts], request: null, task: Promise.resolve()};
this.queues.set(key, entry);
const m = memories instanceof MemoryCache ? memories.memories : memories;
entry.task = (async () => {
while (entry.pending.length) {
const batch = dedupeFacts(entry.pending.splice(0, entry.pending.length));
const written = await this.docAgent(node, batch, m, options, tempName, week, entry);
if (!written) entry.pending.unshift(...batch);
}
})().finally(() => {
this.queues.delete(key);
if(!this.queues.size && memories instanceof MemoryCache) memories.rebuild();
});
return entry.task;
}
private listNodes(memories: Memory[]): MemoryRef[] {
return memories.map(m => ({name: m.name, description: m.description}));
}
decay() {
for(const [name, ttl] of this.recentlyTouched) {
if(ttl <= 1) this.recentlyTouched.delete(name);
else this.recentlyTouched.set(name, ttl - 1);
}
}
forget(name: string, memories: Memory[] | MemoryCache): boolean {
const mem = memories instanceof MemoryCache ? memories.memories : memories;
const idx = mem.findIndex(m => m.name === name);
if (idx === -1) return false;
for (const node of mem) {
const {links, backlinks} = extractMetadata(node.content);
const newBacklinks = backlinks.filter(b => b !== name);
const newLinks = links.filter(l => l !== name);
if (newBacklinks.length !== backlinks.length || newLinks.length !== links.length) {
node.content = this.updateFrontmatter(node.content, {
links: newLinks,
backlinks: newBacklinks,
});
}
}
mem.splice(idx, 1);
if (memories instanceof MemoryCache) memories.rebuild();
return true;
}
getTouched(): string[] {
return [...this.recentlyTouched.keys()];
}
async memorize(history: LLMMessage[], memories: Memory[] | MemoryCache, options: LLMRequest): Promise<Memory[]> {
const conversation = history
.filter(h => h.role === 'user' || h.role === 'assistant')
.map(h => `[${h.role}]: ${h.content}`).join('\n\n').trim();
if(!conversation) return [];
const trackingId = `${Date.now()}_${Math.random()}`;
const tempMemory = await this.createTempMemory(conversation);
const mem = memories instanceof MemoryCache ? memories.memories : memories;
mem.push(tempMemory);
if (memories instanceof MemoryCache) memories.rebuild();
this.pendingMemorizations.set(trackingId, {
memories,
tempMemoryName: tempMemory.name,
timestamp: Date.now(),
});
try {
await this.backgroundMemorization(conversation, memories, options, tempMemory.name);
const finalMem = memories instanceof MemoryCache ? memories.memories : memories;
return finalMem.filter(m => !m.name.startsWith('_temp_'));
} finally {
const pending = this.pendingMemorizations.get(trackingId);
if (pending) {
const cleanMem = pending.memories instanceof MemoryCache
? pending.memories.memories
: pending.memories;
const idx = cleanMem.findIndex(m => m.name === pending.tempMemoryName);
if (idx !== -1) cleanMem.splice(idx, 1);
if (pending.memories instanceof MemoryCache) pending.memories.rebuild();
}
this.pendingMemorizations.delete(trackingId);
}
}
async recollect(query: string, memories: Memory[] | MemoryCache, limit = 5, graphDepth = 1): Promise<Memory[]> {
const mem: Memory[] = memories instanceof MemoryCache ? memories.memories : memories;
if (!mem.length) return [];
const [e] = await this.llm.embedding(query);
if (!e) return [];
let vectorResults: MemoryRef[];
if (memories instanceof MemoryCache) vectorResults = memories.search(e.embedding, limit);
else vectorResults = this.cosineSearch(e.embedding, mem, limit);
const found = new Set<string>(vectorResults.map(r => r.name));
if (graphDepth > 0) {
const frontier = [...found];
for (let depth = 0; depth < graphDepth; depth++) {
const next: string[] = [];
for (const name of frontier) {
const node = mem.find(m => m.name === name);
if (!node) continue;
const {links} = extractMetadata(node.content);
for (const link of links) {
if (!found.has(link) && mem.find(m => m.name === link)) {
found.add(link);
next.push(link);
}
}
}
frontier.splice(0, frontier.length, ...next);
if (!frontier.length) break;
}
}
const vectorOrder = vectorResults.map(r => r.name);
const graphExpansions = [...found].filter(n => !vectorOrder.includes(n));
const ordered = [...vectorOrder, ...graphExpansions];
return ordered.map(n => mem.find(m => m.name === n)!).filter(Boolean);
}
touch(name: string, ttl = 2) {
this.recentlyTouched.set(name, ttl);
}
private updateFrontmatter(content: string, updates: {links?: string[], backlinks?: string[]}): string {
const match = content.match(/^---\n([\s\S]*?)\n---\n\n?([\s\S]*)$/);
if (!match) return content;
const [, fm, body] = match;
let newFm = fm;
if (updates.links !== undefined) {
const linksList = updates.links.length ? `[${updates.links.map(l => `"${l}"`).join(', ')}]` : '[]';
newFm = newFm.replace(/^links:.*$/m, `links: ${linksList}`);
}
if (updates.backlinks !== undefined) {
const backlinksList = updates.backlinks.length ? `[${updates.backlinks.map(l => `"${l}"`).join(', ')}]` : '[]';
newFm = newFm.replace(/^backlinks:.*$/m, `backlinks: ${backlinksList}`);
}
newFm = newFm.replace(/^modified:.*$/m, `modified: ${new Date().toISOString()}`);
return `---\n${newFm}\n---\n\n${body}`;
}
private stripHeader(content: string): string {
return content.replace(/^---[\s\S]*?\n---\n?/, '').trimStart();
}
private async docAgent(node: Memory, facts: string[], memories: Memory[], options: LLMRequest, tempName: string, week: {monday: string, sunday: string} | undefined, entry: {request: {abort?: () => void} | null}): Promise<boolean> {
const {links: oldLinks} = extractMetadata(node.content);
const currentBody = this.stripHeader(node.content);
let update;
try {
for(let i = 0; i < 3 && !update?.content; i++) {
const request = this.llm.ask(`New Facts:\n${facts.map(f => `- ${f}`).join('\n')}`, {
model: options.model,
temperature: 0.3,
schema: {
description: {type: 'string', description: 'One-line description of what this document covers, no formatting or emojis', required: true},
content: {type: 'string', description: 'Rewritten document in markdown, without the frontmatter block', required: true},
},
system: `You are a knowledge base editor. Rewrite the current document below so it incorporates the new facts.
Formatting rules:
- Use Obsidian-style markdown: # headings, **bold** to add emphasis, __italics__ for titles, terms, etc, bullet & numbered lists for grouped 1D data and tables for 2D data
- Link related concepts with [[WikiLink]] notation using full paths like [[People/Sarah]] or [[Projects/Website]]
- Create links for specific entities (person, place, project, program) and abstract concepts (quantum mechanics, entropy) but skip generics (car, red, dog)
- Keep the document concise, factual, and human-readable
- Resolve contradictions: the new facts always win — delete the outdated statement entirely, never keep both
- Later facts in the list override earlier ones
- Do not add frontmatter blocks, filler, preamble, or AI commentary
${week ? '- This is a weekly journal entry.\n' : ''}
All nodes:
${this.listNodes(memories).map(n => n.name).join(', ') || 'none'}
Current document:
\`\`\`markdown
${currentBody}
\`\`\``}
);
entry.request = request;
update = await request;
}
} catch (err: any) {
if (err?.name === 'AbortError') return false;
throw err;
} finally {
entry.request = null;
}
if(!update?.content) return false;
const newLinks = extractLinks(update.content).filter(l => l !== node.name && l !== tempName);
const newLinkSet = new Set(newLinks);
const oldLinkSet = new Set(oldLinks);
for (const added of newLinkSet) {
if (!oldLinkSet.has(added)) {
const target = memories.find(m => m.name === added);
if (target) {
const {backlinks} = extractMetadata(target.content);
if (!backlinks.includes(node.name)) {
target.content = this.updateFrontmatter(target.content, {
backlinks: [...backlinks, node.name],
});
}
}
}
}
for (const removed of oldLinkSet) {
if (!newLinkSet.has(removed)) {
const target = memories.find(m => m.name === removed);
if (target) {
const {backlinks} = extractMetadata(target.content);
target.content = this.updateFrontmatter(target.content, {
backlinks: backlinks.filter(b => b !== node.name),
});
}
}
}
const {backlinks} = extractMetadata(node.content);
node.description = node.name !== 'Person/User' ? update.description : 'All information about the current user';
node.content = this.applyHeader(update.content, this.buildHeader(node, week, newLinks, backlinks));
const [e] = await this.llm.embedding(node.content);
if(e) node.embedding = e.embedding;
return true;
}
private async factAgent(conversation: string, memories: Memory[], options: LLMRequest, weekKey: string): Promise<FactBucket[]> {
const buckets = new Map<string, string[]>();
await this.llm.ask(conversation, {
model: options.model,
temperature: 0.2,
system: `You are a fact extractor. Analyze this conversation and extract facts worth remembering long-term.
Rules:
- ONLY extract current facts the USER explicitly stated about themselves, their work, or their projects
- ONLY extract decisions that were MADE during this conversation
- DO NOT extract anything the AI said, its capabilities, or meta-conversation about the AI
- DO NOT extract greetings, pleasantries, or generic exchanges
- DO NOT extract deltas or changes in facts; ONLY the end fact
- If nothing worth remembering was said, do not call any tools
When extracting facts, you MUST also decide the exact destination path:
- Use an existing node name if the facts clearly belong there
- All information primary about the user should go under "People/User"
- When required, create a new path following collection/subject format (e.g., People/Sarah, Projects/Oxide)
- For journal entries, use "Journal"
Available nodes:
- Journal
${this.listNodes(memories).filter(n => !n.name.includes('_temp_') && !n.name.includes('Journal')).map(n => `- ${n.name}: ${n.description}`).join('\n') || 'None yet.'}`,
tools: [{
name: 'facts_extract',
description: 'Submit facts with their destination',
args: {
destination: {type: 'string', description: 'Exact existing node name OR new path (e.g. "People/Sarah", "Projects/Oxide")', required: true},
facts: {type: 'string', description: 'Comma-separated facts', required: true},
},
fn: (args: any) => {
const subject = args.destination.trim().toLowerCase() === 'journal'
? `Journal/${weekKey}` : args.destination.trim();
const facts = buckets.get(subject) ?? [];
facts.push(...dedupeFacts(String(args.facts).split(',')));
buckets.set(subject, facts);
return 'Recorded';
},
}],
});
return buckets.entries().toArray().map(([subject, facts]) => ({subject, facts}));
}
}

View File

@@ -3,6 +3,7 @@ import {findByProp, objectMap, JSONSanitize, JSONAttemptParse, clean} from '@zti
import {AbortablePromise, Ai} from './ai.ts';
import {LLMMessage, LLMRequest} from './llm.ts';
import {LLMProvider} from './provider.ts';
import {convertSchema} from './tools.ts';
export class OpenAi extends LLMProvider {
client!: openAI;
@@ -11,7 +12,7 @@ export class OpenAi extends LLMProvider {
super();
this.client = new openAI(clean({
baseURL: host,
apiKey: token
apiKey: token || (host ? 'ignored' : undefined)
}));
}
@@ -19,20 +20,24 @@ 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;
} else if(h.role === 'tool' && h.content) {
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) {
if(h.content.includes('"error":')) record.error = h.content;
else record.content = h.content;
if(h.content?.includes('"error":')) record.error = h.content;
else record.content = h.content || '';
}
history.splice(i, 1);
i--;
@@ -50,34 +55,37 @@ export class OpenAi extends LLMProvider {
content: null,
tool_calls: [{ id: h.id, type: 'function', function: { name: h.name, arguments: JSON.stringify(h.args) } }],
refusal: null,
annotations: []
annotations: [],
timestamp: h.timestamp,
}, {
role: 'tool',
tool_call_id: h.id,
content: h.error || h.content
content: h.error || h.content,
timestamp: h.timestamp,
});
} else {
const {timestamp, ...rest} = h;
result.push(rest);
result.push(h);
}
return result;
}, [] as any[]);
}
ask(message: string, options: LLMRequest = {}): AbortablePromise<LLMMessage[]> {
ask(message: string, options: LLMRequest = {}): AbortablePromise<string | any> {
const controller = new AbortController();
const response = new Promise<any>(async (res, rej) => {
let history = [...options.history || [], {role: 'user', content: message, timestamp: Date.now()}];
if(options.compress) history = await this.ai.language.compressHistory(<any>history, options.compress.max, options.compress.min, options);
history = this.fromStandard(<any>history);
return Object.assign(new Promise<any>(async (res, rej) => {
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,
messages: history,
stream: !!options.stream,
max_tokens: options.max_tokens || this.ai.options.llm?.max_tokens || 4096,
temperature: options.temperature || this.ai.options.llm?.temperature || 0.7,
max_completion_tokens: options.max_tokens || this.ai.options.llm?.max_tokens || undefined,
temperature: options.temperature || this.ai.options.llm?.temperature || undefined,
tools: tools.map(t => ({
type: 'function',
function: {
@@ -92,52 +100,110 @@ export class OpenAi extends LLMProvider {
}))
};
let resp: any, isFirstMessage = true;
if(options.schema) {
const schema = convertSchema(options.schema);
requestParams.response_format = {
type: 'json_schema',
json_schema: {
name: 'response',
strict: true,
schema
}
};
}
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: {content: '', tool_calls: []}}];
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) {
resp.choices[0].message.tool_calls = 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) {
if(deltaTC.id) existing.id = deltaTC.id;
if(deltaTC.type) existing.type = deltaTC.type;
if(deltaTC.function) {
if(!existing.function) existing.function = {};
if(deltaTC.function.name) existing.function.name = deltaTC.function.name;
if(deltaTC.function.arguments) existing.function.arguments = (existing.function.arguments || '') + deltaTC.function.arguments;
}
} else {
resp.choices[0].message.tool_calls.push({
index: deltaTC.index,
id: deltaTC.id || '',
type: deltaTC.type || 'function',
function: {
name: deltaTC.function?.name || '',
arguments: deltaTC.function?.arguments || ''
}
});
}
}
}
}
} 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"}'};
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, {});
const result = await tool.fn(args, this.ai);
return {role: 'tool', tool_call_id: toolCall.id, content: JSONSanitize(result)};
const toolStream = options.stream && ((chunk: any) => {
if(chunk.done) { terminal = true; return; }
options.stream!(chunk);
});
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'})};
return {role: 'tool', tool_call_id: toolCall.id, content: JSONSanitize({error: err?.message || err?.toString() || 'Unknown'}), timestamp: Date.now()};
}
}));
history.push(...results);
requestParams.messages = history;
}
} while (!controller.signal.aborted && resp.choices?.[0]?.message?.tool_calls?.length);
} while (!terminal && !controller.signal.aborted && resp.choices?.[0]?.message?.tool_calls?.length);
if(!terminal) {
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});
res(this.toStandard([...history, {role: 'assistant', content: resp.choices[0].message.content || ''}]));
});
return Object.assign(response, {abort: () => controller.abort()});
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()});
}
}

View File

@@ -1,6 +1,6 @@
import {AbortablePromise} from './ai.ts';
import {LLMMessage, LLMRequest} from './llm.ts';
import {LLMRequest} from './llm.ts';
export abstract class LLMProvider {
abstract ask(message: string, options: LLMRequest): AbortablePromise<LLMMessage[]>;
abstract ask(message: string, options: LLMRequest): AbortablePromise<string>;
}

View File

@@ -1,7 +1,16 @@
import * as cheerio from 'cheerio';
import {$, $Sync} from '@ztimson/node-utils';
import {ASet, consoleInterceptor, Http, fn as Fn} from '@ztimson/utils';
import * as cheerio from 'cheerio';
import {$Sync} from '@ztimson/node-utils';
import {ASet, consoleInterceptor, Http, fn as Fn, decodeHtml, objectMap} from '@ztimson/utils';
import * as os from 'node:os';
import {Ai} from './ai.ts';
import {LLMRequest} from './llm.ts';
const UA = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)';
const getShell = () => {
if(os.platform() == 'win32') return 'cmd';
return $Sync`echo $SHELL`?.split('/').pop() || 'bash';
}
export type AiToolArg = {[key: string]: {
/** Argument type */
@@ -32,40 +41,103 @@ export type AiTool = {
/** Tool arguments */
args?: AiToolArg,
/** Callback function */
fn: (args: any, ai: Ai) => any | Promise<any>,
fn: (args: any, stream: LLMRequest['stream'], ai: Ai, toolId?: string) => any | Promise<any>,
};
export const CliTool: AiTool = {
export function convertSchema(schema: any): any {
if(!schema) return null;
const convertProp = (prop: any): any => {
const converted: any = {
type: prop.type || 'string',
};
if(prop.description) converted.description = prop.description;
if(prop.default !== undefined) converted.default = prop.default;
if(prop.enum) converted.enum = prop.enum;
if(prop.pattern) converted.pattern = prop.pattern;
// Handle array items
if(prop.type === 'array' && prop.items) {
converted.items = convertProp(prop.items);
}
// Handle object properties
if(prop.type === 'object' && prop.items) {
converted.properties = objectMap(prop.items, (key, value) => convertProp(value));
const required = Object.entries(prop.items).filter(([_, v]: any) => v.required).map(([k]) => k);
if(required.length) converted.required = required;
converted.additionalProperties = false;
}
// Handle min/max based on type
if(prop.min !== undefined) {
if(prop.type === 'string' || prop.type === 'array') converted.minLength = prop.min;
else converted.minimum = prop.min;
}
if(prop.max !== undefined) {
if(prop.type === 'string' || prop.type === 'array') converted.maxLength = prop.max;
else converted.maximum = prop.max;
}
return converted;
};
return {
type: 'object',
properties: objectMap(schema, (key, value) => convertProp(value)),
required: Object.entries(schema).filter(([_, v]: any) => v.required).map(([k]) => k),
additionalProperties: false
};
}
export const ExecCliTool: AiTool = {
name: 'cli',
description: 'Use the command line interface, returns any output',
args: {command: {type: 'string', description: 'Command to run', required: true}},
fn: (args: {command: string}) => $`${args.command}`
fn: (args: {command: string}) => $Sync`${args.command}`
}
export const DateTimeTool: AiTool = {
name: 'get_datetime',
description: 'Get current date and time',
args: {},
fn: async () => new Date().toISOString()
export const ExecJSTool: AiTool = {
name: 'exec_javascript',
description: 'Execute commonjs javascript',
args: {
code: {type: 'string', description: 'CommonJS javascript', required: true}
},
fn: async (args: {code: string}) => {
const c = consoleInterceptor(null);
const resp = await Fn<any>({console: c}, args.code, true).catch((err: any) => c.output.error.push(err));
return {...c.output, return: resp, stdout: undefined, stderr: undefined};
}
}
export const ExecPythonTool: AiTool = {
name: 'exec_python',
description: 'Execute commonjs javascript',
args: {
code: {type: 'string', description: 'CommonJS javascript', required: true}
},
fn: async (args: {code: string}) => ({result: $Sync`python -c "${args.code}"`})
}
export const ExecTool: AiTool = {
name: 'exec',
description: 'Run code/scripts',
args: {
language: {type: 'string', description: 'Execution language', enum: ['cli', 'node', 'python'], required: true},
language: {type: 'string', description: `Execution language (CLI: ${getShell()})`, enum: ['cli', 'node', 'python'], required: true},
code: {type: 'string', description: 'Code to execute', required: true}
},
fn: async (args, ai) => {
fn: async (args, stream, ai) => {
try {
switch(args.type) {
case 'bash':
return await CliTool.fn({command: args.code}, ai);
switch(args.language) {
case 'cli':
return await ExecCliTool.fn({command: args.code}, stream, ai);
case 'node':
return await JSTool.fn({code: args.code}, ai);
case 'python': {
return await PythonTool.fn({code: args.code}, ai);
}
return await ExecJSTool.fn({code: args.code}, stream, ai);
case 'python':
return await ExecPythonTool.fn({code: args.code}, stream, ai);
default:
throw new Error(`Unsupported language: ${args.language}`);
}
} catch(err: any) {
return {error: err?.message || err.toString()};
@@ -73,8 +145,483 @@ export const ExecTool: AiTool = {
}
}
export const FetchTool: AiTool = {
name: 'fetch',
export const FsDeleteTool = (whitelist: null | string[] = null): AiTool => {
return {
name: 'fs_delete',
description: 'Delete a file or directory',
args: {
path: {type: 'string', description: 'Path to file or directory', required: true},
recursive: {type: 'boolean', description: 'Delete all children', required: false}
},
fn: async ({path, recursive = false}) => {
const {existsSync, rmSync} = await import('fs');
const normalizePath = p => p.replace(/\\/g, '/');
path = normalizePath(path);
if(whitelist && !whitelist.some(p => path.startsWith(p))) return {error: 'Permission denied'};
if(!existsSync(path)) return {error: 'Path does not exist'};
rmSync(path, {recursive, force: true});
return {success: true, path};
}
}
}
export const FsMoveTool = (whitelist: null | string[] = null): AiTool => {
return {
name: 'fs_move',
description: 'Move or rename a file or directory',
args: {
source: {type: 'string', description: 'Path to source file or directory', required: true},
destination: {type: 'string', description: 'Path to destination file or directory', required: true}
},
fn: async ({source, destination}) => {
const {existsSync, renameSync} = await import('fs');
const normalizePath = p => p.replace(/\\/g, '/');
source = normalizePath(source);
destination = normalizePath(destination);
if(whitelist && !whitelist.some(p => source.startsWith(p) && destination.startsWith(p))) return {error: 'Permission denied'};
if(!existsSync(source)) return {error: 'Source path does not exist'};
if(existsSync(destination)) return {error: 'Destination path already exists'};
renameSync(source, destination);
return {success: true, source, destination};
}
}
}
export const FsReadTool = (whitelist: null | string[] = null): AiTool => {
return {
name: 'fs_read',
description: 'Read the contents of a provided path. Works with files and directories',
args: {path: {type: 'string', description: 'Path to file or directory', required: true}},
fn: async ({path}) => {
const {existsSync, lstatSync, readdirSync, readFileSync} = await import('fs');
const {join} = await import('path');
const normalizePath = p => p.replace(/\\/g, '/');
path = normalizePath(path);
if(whitelist && !whitelist.some(p => path.startsWith(p))) return {error: 'Permission denied'};
if(!existsSync(path)) return {error: 'Path does not exist'};
const stats = lstatSync(path);
if(stats.isDirectory()) {
const children = readdirSync(path).map(name => {
const childPath = normalizePath(join(path, name));
const childStats = lstatSync(childPath);
return {name, type: childStats.isDirectory() ? 'directory' : 'file', size: childStats.size};
});
return {type: 'directory', children};
}
const content = readFileSync(path, 'utf-8');
return {type: 'file', content};
}
}
}
export const FsSearchTool = (whitelist: null | string[] = null): AiTool => {
return {
name: 'fs_search',
description: 'Scan a directory for matching glob patterns (e.g. "**/*.js", "src/**/*.test.ts")',
args: {
pattern: {type: 'string', description: 'Glob pattern to match against paths', required: true},
root: {type: 'string', description: 'Directory to search from', required: false, default: '.'}
},
fn: async ({pattern, root = '.'}) => {
const {existsSync, lstatSync, readdirSync} = await import('fs');
const {join, relative} = await import('path');
const normalizePath = p => p.replace(/\\/g, '/');
root = normalizePath(root);
if(!existsSync(root)) return {error: 'Root path does not exist'};
if(!lstatSync(root).isDirectory()) return {error: 'Root path is not a directory'};
if(whitelist && !whitelist.some(p => root.startsWith(p))) return {error: 'Permission denied'};
const globToRegex = (glob) => {
let re = '';
for(let i = 0; i < glob.length; i++) {
const c = glob[i];
if(c === '*') {
if(glob[i + 1] === '*') {
const isSlash = glob[i + 2] === '/';
re += '.*';
i += isSlash ? 2 : 1;
} else {
re += '[^/]*';
}
} else if(c === '?') {
re += '[^/]';
} else if('.+^$(){}|[]\\'.includes(c)) {
re += '\\' + c;
} else {
re += c;
}
}
return new RegExp('^' + re + '$');
};
const regex = globToRegex(pattern);
const results: any = [];
const walk = (dir) => {
for(const name of readdirSync(dir)) {
const fullPath = normalizePath(join(dir, name));
const stats = lstatSync(fullPath);
const relPath = normalizePath(relative(root, fullPath));
if(regex.test(relPath)) {
results.push({path: relPath, type: stats.isDirectory() ? 'directory' : 'file', size: stats.size});
}
if(stats.isDirectory()) walk(fullPath);
}
};
walk(root);
return results;
}
}
}
export const FsWriteTool = (whitelist: null | string[] = null): AiTool => {
return {
name: 'fs_write',
description: 'Create a directory, write content to a file or preform a find & replace',
args: {
path: {type: 'string', description: 'Path to file or directory', required: true},
content: {type: 'string', description: 'Content to write or replace (Omit to create a directory)'},
find: {type: 'string', description: 'Text or regex pattern to match (regex must match pattern: "/pattern/g")'}
},
fn: async ({path, content, find}) => {
const {existsSync, mkdirSync, readFileSync, writeFileSync} = await import('fs');
const {dirname} = await import('path');
const normalizePath = p => p.replace(/\\/g, '/');
path = normalizePath(path);
if(whitelist && !whitelist.some(p => path.startsWith(p))) return {error: 'Permission denied'};
if(content === undefined) {
mkdirSync(path, {recursive: true});
return {success: true, type: 'directory', path};
}
const dir = normalizePath(dirname(path));
if(!existsSync(dir)) mkdirSync(dir, {recursive: true});
if(find && existsSync(path)) {
const existing = readFileSync(path, 'utf-8');
const regexMatch = find.match(/^\/(.+)\/([gimuy]*)$/);
const pattern = regexMatch ? new RegExp(regexMatch[1], regexMatch[2]) : find;
if(!existing.match(pattern)) return {error: 'Find pattern not found in file'};
const updated = existing.replace(pattern, content);
writeFileSync(path, updated, 'utf-8');
return {success: true, type: 'file', path, replaced: true, content: updated};
}
writeFileSync(path, content, 'utf-8');
return {success: true, type: 'file', path, content};
}
}
}
export const GetPathsTool: AiTool = {
name: 'get_paths',
description: 'Get the current working directory, and paths to the users home directory',
fn: async () => {
return {
home: os.homedir(),
cwd: process.cwd()
};
}
}
export const GetDatetimeTool: AiTool = {
name: 'get_datetime',
description: 'Get local/UTC timestamp',
args: {
timezone: {type: 'string', description: 'Which timezone to return, defaults to local', enum: ['local', 'utc'], default: 'local'}
},
fn: ({timezone}) => new Date()[timezone === 'local' ? 'toString' : 'toUTCString']()
}
export const GetDevice: AiTool = {
name: 'get_device',
description: 'Get comprehensive system information including hostname, specs, load, storage, and network status',
args: {},
fn: async () => {
const platform = os.platform();
const hostname = os.hostname();
// CPU Info
const cpus = os.cpus();
const cpuModel = cpus[0].model;
const cpuCores = cpus.length;
// Memory Info
const totalMem: any = (os.totalmem() / 1024 / 1024 / 1024).toFixed(2);
const freeMem: any = (os.freemem() / 1024 / 1024 / 1024).toFixed(2);
const usedMem: any = (totalMem - freeMem).toFixed(2);
const memUsage: any = ((usedMem / totalMem) * 100).toFixed(1);
// Load Average (not available on Windows)
const loadAvg = platform === 'win32' ? ['N/A', 'N/A', 'N/A'] : os.loadavg().map(l => l.toFixed(2));
// Storage Usage
let storage = {};
if(platform === 'win32') {
const ps = $Sync`powershell "Get-PSDrive C | Select-Object Used,Free | ConvertTo-Json"`.trim();
const drive = JSON.parse(ps);
const used: any = (drive.Used / 1024 / 1024 / 1024).toFixed(2);
const free: any = (drive.Free / 1024 / 1024 / 1024).toFixed(2);
const total: any = (parseFloat(used) + parseFloat(free)).toFixed(2);
const usage: any = ((used / total) * 100).toFixed(1);
storage = {
filesystem: 'C:',
size: `${total} GB`,
used: `${used} GB`,
available: `${free} GB`,
usage: `${usage}%`
};
} else {
const df = $Sync`df -h / | tail -1`.trim();
const s = df.split(/\s+/);
storage = {
filesystem: s[0],
size: s[1],
used: s[2],
available: s[3],
usage: s[4]
};
}
// Network Status
const interfaces = os.networkInterfaces();
const activeIfaces = Object.entries(interfaces)
.filter(([name]) => name !== 'lo' && !name.includes('Loopback'))
.map(([name, addrs]) => {
const ipv4 = addrs?.find(a => a.family === 'IPv4');
return ipv4 ? {name, ip: ipv4.address} : null;
})
.filter(Boolean);
// Internet connectivity check
let internet = false;
try {
if(platform === 'win32') {
$Sync`powershell "Test-Connection -ComputerName 8.8.8.8 -Count 1 -Quiet"`;
} else {
$Sync`ping -c 1 -W 2 8.8.8.8 > /dev/null 2>&1`;
}
internet = true;
} catch {}
// Uptime
const uptime = os.uptime();
const days = Math.floor(uptime / 86400);
const hours = Math.floor((uptime % 86400) / 3600);
const minutes = Math.floor((uptime % 3600) / 60);
return {
hostname,
cpu: {
model: cpuModel,
cores: cpuCores
},
memory: {
total: `${totalMem} GB`,
used: `${usedMem} GB`,
free: `${freeMem} GB`,
usage: `${memUsage}%`
},
load: {
'1min': loadAvg[0],
'5min': loadAvg[1],
'15min': loadAvg[2]
},
storage,
network: {
interfaces: activeIfaces,
internet: internet ? 'connected' : 'disconnected'
},
uptime: `${days}d ${hours}h ${minutes}m`,
platform: `${os.type()} ${os.release()}`
};
}
}
export const GetWikipediaTool: AiTool = {
name: 'get_wikipedia',
description: 'Search Wikipedia for matching articles',
args: {
query: {type: 'string', description: 'Search term or article title', required: true},
mode: {type: 'string', description: 'search - look for articles, summary - intro of first found article (default), full - complete first found article', enum: ['search', 'summary', 'full'], default: 'summary'},
ua: {type: 'string', description: 'User Agent'},
},
fn: async ({query, mode, ua}) => {
class WikipediaClient {
useragent = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64)';
constructor(useragent: string) {
this.useragent = useragent;
}
async get(url) {
const resp = await fetch(url, {headers: {'User-Agent': this.useragent}});
return resp.json();
}
api(params) {
const qs = new URLSearchParams({...params, format: 'json', utf8: '1'}).toString();
return this.get(`https://en.wikipedia.org/w/api.php?${qs}`);
}
clean(text) {
const cutoffs = ['== See also ==', '== References ==', '== Bibliography ==', '== External links =='];
for (const marker of cutoffs) {
const idx = text.indexOf(marker);
if (idx !== -1) text = text.slice(0, idx);
}
return text
.replace(/^={4}\s*(.+?)\s*={4}$/gm, '#### $1')
.replace(/^={3}\s*(.+?)\s*={3}$/gm, '### $1')
.replace(/^={2}\s*(.+?)\s*={2}$/gm, '## $1')
.replace(/\n{3,}/g, '\n\n')
.replace(/ {2,}/g, ' ')
.replace(/\[\d+]/g, '')
.trim();
}
async searchTitles(query: string, limit = 6) {
const data = await this.api({action: 'query', list: 'search', srsearch: query, srlimit: limit, srprop: 'snippet'});
return data.query?.search || [];
}
async fetchExtract(title: string, introOnly = false) {
const params: any = {action: 'query', prop: 'extracts', titles: title, explaintext: 1, redirects: 1};
if(introOnly) params.exintro = 1;
const data = await this.api(params);
const page: any = Object.values(data.query?.pages || {})[0];
return this.clean(page?.extract || '');
}
pageUrl(title: string) {
return `https://en.wikipedia.org/wiki/${encodeURIComponent(title.replace(/ /g, '_'))}`;
}
stripHtml(text: string) {
return text.replace(/<[^>]+>/g, '');
}
async lookup(query: string, detail = 'summary') {
const results = await this.searchTitles(query, 6);
if(!results.length) return `❌ No Wikipedia articles found for "${query}"`;
const title = results[0].title;
const url = this.pageUrl(title);
const introOnly = detail !== 'full';
const content = await this.fetchExtract(title, introOnly);
return `## ${title}\n🔗 ${url}\n\n${content}`;
}
async search(query: string) {
const results = await this.searchTitles(query, 8);
if(!results.length) return `❌ No results for "${query}"`;
const lines = [`### Search results for "${query}"\n`];
for(let i = 0; i < results.length; i++) {
const r = results[i];
const snippet = this.stripHtml(r.snippet || '').trim();
lines.push(`**${i + 1}. ${r.title}**\n${snippet}\n${this.pageUrl(r.title)}`);
}
return lines.join('\n\n');
}
}
const wiki = new WikipediaClient(ua);
if(mode === 'search') return wiki.search(query);
return wiki.lookup(query, mode || 'summary');
}
};
export const GeoCodeTool: AiTool = {
name: 'geo_code',
description: 'Converts coordinates to address OR vice versa',
args: {
query: {type: 'string', description: 'Search query - coordinates (lat,lon) or address string', required: true},
},
fn: async ({query}) => {
const coordinates = /(-?\d+(?:\.\d+)?).*?,.*?(-?\d+(?:\.\d+)?)/.exec(query);
if(coordinates) { // Geolocate
const url = `https://nominatim.openstreetmap.org/reverse?format=json&lat=${encodeURIComponent(coordinates[1])}&lon=${encodeURIComponent(coordinates[2])}`;
const response = await fetch(url, {headers: {'User-Agent': 'OpenSight/1.0', 'Accept-Language': 'en'}});
const data = await response.json();
if(data.display_name) return {address: data.display_name, mode: 'geolocate'};
} else { // Geocode
const url = `https://nominatim.openstreetmap.org/search?format=json&q=${encodeURIComponent(query)}`;
const response = await fetch(url, {headers: {'User-Agent': 'OpenSight/1.0'}});
const data = await response.json();
if(data[0]) return {latitude: parseFloat(data[0].lat), longitude: parseFloat(data[0].lon), mode: 'geocode'};
}
return {error: 'Not found'};
},
}
export const GeoWeatherTool: AiTool = {
name: 'geo_weather',
description: 'Gets weather and air quality info for a location and time',
args: {
query: {type: 'string', description: 'Location - address or place name', required: true},
day: {type: 'string', description: 'Date to retrieve (YYYY-MM-DD), defaults to today'},
},
fn: async ({query, day}) => {
day = day || new Date().toISOString().slice(0, 10);
const geoUrl = `https://nominatim.openstreetmap.org/search?format=json&q=${encodeURIComponent(query)}`;
const geoResponse = await fetch(geoUrl, {headers: {'User-Agent': 'OpenSight/1.0'}});
const geoData = await geoResponse.json();
if(!geoData[0]) return {error: 'Location not found'};
const lat = parseFloat(geoData[0].lat);
const lon = parseFloat(geoData[0].lon);
const weatherUrl = `https://api.open-meteo.com/v1/forecast?latitude=${lat}&longitude=${lon}&start_date=${day}&end_date=${day}&daily=weathercode,temperature_2m_max,temperature_2m_min,apparent_temperature_max,apparent_temperature_min,precipitation_sum,precipitation_probability_max,windspeed_10m_max,winddirection_10m_dominant,uv_index_max,sunrise,sunset&timezone=auto`;
const airUrl = `https://air-quality-api.open-meteo.com/v1/air-quality?latitude=${lat}&longitude=${lon}&start_date=${day}&end_date=${day}&hourly=us_aqi,european_aqi,pm10,pm2_5&timezone=auto`;
const [weatherResponse, airResponse] = await Promise.all([fetch(weatherUrl), fetch(airUrl)]);
const weatherData = await weatherResponse.json();
const airData = await airResponse.json();
const avg = arr => (arr && arr.length) ? arr.reduce((a, b) => a + b, 0) / arr.length : null;
return {
location: geoData[0].display_name,
latitude: lat,
longitude: lon,
elevation: weatherData.elevation,
date: day,
weatherCode: weatherData.daily?.weathercode?.[0],
tempMax: weatherData.daily?.temperature_2m_max?.[0],
tempMin: weatherData.daily?.temperature_2m_min?.[0],
feelsLikeMax: weatherData.daily?.apparent_temperature_max?.[0],
feelsLikeMin: weatherData.daily?.apparent_temperature_min?.[0],
precipitation: weatherData.daily?.precipitation_sum?.[0],
precipitationChance: weatherData.daily?.precipitation_probability_max?.[0],
windSpeedMax: weatherData.daily?.windspeed_10m_max?.[0],
windDirection: weatherData.daily?.winddirection_10m_dominant?.[0],
uvIndexMax: weatherData.daily?.uv_index_max?.[0],
sunrise: weatherData.daily?.sunrise?.[0],
sunset: weatherData.daily?.sunset?.[0],
usAqi: avg(airData.hourly?.us_aqi),
europeanAqi: avg(airData.hourly?.european_aqi),
pm10: avg(airData.hourly?.pm10),
pm2_5: avg(airData.hourly?.pm2_5),
};
},
}
export const WebFetchTool: AiTool = {
name: 'web_fetch',
description: 'Make HTTP request to URL',
args: {
url: {type: 'string', description: 'URL to fetch', required: true},
@@ -90,61 +637,160 @@ export const FetchTool: AiTool = {
}) => new Http({url: args.url, headers: args.headers}).request({method: args.method || 'GET', body: args.body})
}
export const JSTool: AiTool = {
name: 'exec_javascript',
description: 'Execute commonjs javascript',
args: {
code: {type: 'string', description: 'CommonJS javascript', required: true}
},
fn: async (args: {code: string}) => {
const console = consoleInterceptor(null);
const resp = await Fn<any>({console}, args.code, true).catch((err: any) => console.output.error.push(err));
return {...console.output, return: resp, stdout: undefined, stderr: undefined};
export const WebFlareSolverTool = (host: string) => {
return {
name: 'web_flaresolverr',
description: 'Use a flaresolverr proxy to bypass cloudflare bot detection',
args: {
url: {type: 'string', description: 'URL to fetch', required: true},
cmd: {type: 'string', description: 'Flaresolverr cmd', enum: ['request.get', 'request.post'], default: 'request.get'},
maxTimeout: {type: 'number', description: 'Fetch time limit', default: 60_000},
postData: {type: 'object', description: 'Data to send during request.post requests'},
},
fn: async ({url, cmd, maxTimeout, postData}) => {
function toFormUrlEncoded(obj, prefix = '') {
const pairs: any = [];
for (const key in obj) {
if (!obj.hasOwnProperty(key)) continue;
const value = obj[key];
const encodedKey = prefix
? `${prefix}[${encodeURIComponent(key)}]`
: encodeURIComponent(key);
if (value === null || value === undefined) {
pairs.push(`${encodedKey}=`);
} else if (typeof value === 'object' && !Array.isArray(value)) {
pairs.push(toFormUrlEncoded(value, encodedKey));
} else if (Array.isArray(value)) {
value.forEach(item => {
pairs.push(`${encodedKey}[]=${encodeURIComponent(item)}`);
});
} else {
pairs.push(`${encodedKey}=${encodeURIComponent(value)}`);
}
}
return pairs.join('&');
}
const res = await fetch(host + '/v1', {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({cmd, url, maxTimeout, postData: postData ? toFormUrlEncoded(postData) : undefined}),
});
if(!res.ok) throw new Error(`FlareSolverr HTTP error: ${res.status} ${res.statusText}`);
const data = await res.json();
if(data.status !== 'ok') throw new Error(`FlareSolverr error: ${data.message ?? data.status}`);
return data.solution.response;
}
}
}
export const PythonTool: AiTool = {
name: 'exec_javascript',
description: 'Execute commonjs javascript',
export const WebReadTool: AiTool = {
name: 'web_read',
description: 'Extract clean content from webpages, or convert media/documents to accessible formats',
args: {
code: {type: 'string', description: 'CommonJS javascript', required: true}
url: {type: 'string', description: 'URL to read', required: true},
mimeRegex: {type: 'string', description: 'Optional regex to filter MIME types (e.g., "^image/", "text/")'}
},
fn: async (args: {code: string}) => ({result: $Sync`python -c "${args.code}"`})
}
fn: async (args: {url: string; mimeRegex?: string}) => {
const ua = 'AiTools-Webpage/1.0';
const maxSize = 10 * 1024 * 1024;
export const ReadWebpageTool: AiTool = {
name: 'read_webpage',
description: 'Extract clean, structured content from a webpage. Use after web_search to read specific URLs',
args: {
url: {type: 'string', description: 'URL to extract content from', required: true},
focus: {type: 'string', description: 'Optional: What aspect to focus on (e.g., "pricing", "features", "contact info")'}
},
fn: async (args: {url: string; focus?: string}) => {
const html = await fetch(args.url, {headers: {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)"}})
.then(r => r.text()).catch(err => {throw new Error(`Failed to fetch: ${err.message}`)});
const response = await fetch(args.url, {
headers: {
'User-Agent': ua,
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
'Accept-Language': 'en-US,en;q=0.5'
},
redirect: 'follow'
}).catch(err => {throw new Error(`Failed to fetch: ${err.message}`)});
const contentType = response.headers.get('content-type') || '';
const mimeType = contentType.split(';')[0].trim().toLowerCase();
if(args.mimeRegex && !new RegExp(args.mimeRegex, 'i').test(mimeType)) {
return `❌ MIME type rejected: ${mimeType} (filter: ${args.mimeRegex})`;
}
if(mimeType.match(/^(image|audio|video)\//)) {
const buffer = await response.arrayBuffer();
if(buffer.byteLength > maxSize) {
return `❌ File too large: ${(buffer.byteLength / 1024 / 1024).toFixed(1)}MB (max 10MB)\nType: ${mimeType}`;
}
const base64 = Buffer.from(buffer).toString('base64');
return `## Media File\n**Type:** ${mimeType}\n**Size:** ${(buffer.byteLength / 1024).toFixed(1)}KB\n**Data URL:** \`data:${mimeType};base64,${base64.slice(0, 100)}...\``;
}
if(mimeType.match(/^text\/(plain|csv|xml)/) || args.url.match(/\.(txt|csv|xml|md|yaml|yml)$/i)) {
const text = await response.text();
const truncated = text.length > 50000 ? text.slice(0, 50000) : text;
return `## Text File\n**Type:** ${mimeType}\n**URL:** ${args.url}\n\n${truncated}`;
}
if(mimeType.match(/application\/(json|xml|csv)/)) {
const text = await response.text();
const truncated = text.length > 50000 ? text.slice(0, 50000) : text;
return `## Structured Data\n**Type:** ${mimeType}\n**URL:** ${args.url}\n\n\`\`\`\n${truncated}\n\`\`\``;
}
if(mimeType === 'application/pdf' || (mimeType.startsWith('application/') && !mimeType.includes('html'))) {
const buffer = await response.arrayBuffer();
if(buffer.byteLength > maxSize) {
return `❌ File too large: ${(buffer.byteLength / 1024 / 1024).toFixed(1)}MB (max 10MB)\nType: ${mimeType}`;
}
const base64 = Buffer.from(buffer).toString('base64');
return `## Binary File\n**Type:** ${mimeType}\n**Size:** ${(buffer.byteLength / 1024).toFixed(1)}KB\n**Data URL:** \`data:${mimeType};base64,${base64.slice(0, 100)}...\``;
}
// HTML
const html = await response.text();
const $ = cheerio.load(html);
$('script, style, nav, footer, header, aside, iframe, noscript, [role="navigation"], [role="banner"], .ad, .ads, .cookie, .popup').remove();
const metadata = {
title: $('meta[property="og:title"]').attr('content') || $('title').text() || '',
description: $('meta[name="description"]').attr('content') || $('meta[property="og:description"]').attr('content') || '',
};
$('script, style, nav, footer, header, aside, iframe, noscript, svg').remove();
$('[role="navigation"], [role="banner"], [role="complementary"]').remove();
$('[aria-hidden="true"], [hidden], .visually-hidden, .sr-only, .screen-reader-text').remove();
$('.ad, .ads, .advertisement, .cookie, .popup, .modal, .sidebar, .related, .comments, .social-share').remove();
$('button, [class*="share"], [class*="follow"], [class*="social"]').remove();
const title = $('meta[property="og:title"]').attr('content') || $('title').text().trim() || '';
const description = $('meta[name="description"]').attr('content') || $('meta[property="og:description"]').attr('content') || '';
const author = $('meta[name="author"]').attr('content') || '';
let content = '';
const contentSelectors = ['article', 'main', '[role="main"]', '.content', '.post', '.entry', 'body'];
for (const selector of contentSelectors) {
const el = $(selector).first();
if (el.length && el.text().trim().length > 200) {
content = el.text();
break;
const selectors = ['article', 'main', '[role="main"]', '.content', '.post-content', '.entry-content', '.article-content'];
for(const sel of selectors) {
const el = $(sel).first();
if(el.length && el.text().trim().length > 200) {
const paragraphs: string[] = [];
el.find('p').each((_, p) => {
const text = $(p).text().trim();
if(text.length > 80) paragraphs.push(text);
});
if(paragraphs.length > 2) {
content = paragraphs.join('\n\n');
break;
}
}
}
if (!content) content = $('body').text();
content = content.replace(/\s+/g, ' ').trim().slice(0, 8000);
return {url: args.url, title: metadata.title.trim(), description: metadata.description.trim(), content, focus: args.focus};
if(!content) {
const paragraphs: string[] = [];
$('body p').each((_, p) => {
const text = $(p).text().trim();
if(text.length > 80) paragraphs.push(text);
});
content = paragraphs.slice(0, 30).join('\n\n');
}
// Decode escaped newlines and clean
const parts = [`## ${title || 'Webpage'}`];
if(description) parts.push(`_${description}_`);
if(author) parts.push(`👤 ${author}`);
parts.push(`🔗 ${args.url}\n`);
parts.push(content);
return decodeHtml(parts.join('\n\n').replaceAll(/\n{3,}/g, '\n\n'));
}
}
};
export const WebSearchTool: AiTool = {
name: 'web_search',
@@ -158,7 +804,7 @@ export const WebSearchTool: AiTool = {
length: number;
}) => {
const html = await fetch(`https://html.duckduckgo.com/html/?q=${encodeURIComponent(args.query)}`, {
headers: {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)", "Accept-Language": "en-US,en;q=0.9"}
headers: {"User-Agent": UA, "Accept-Language": "en-US,en;q=0.9"}
}).then(resp => resp.text());
let match, regex = /<a .*?href="(.+?)".+?<\/a>/g;
const results = new ASet<string>();

View File

@@ -3,7 +3,7 @@ import {AbortablePromise, Ai} from './ai.ts';
export class Vision {
constructor(private ai: Ai) { }
constructor(private ai: Ai) {}
/**
* Convert image to text using Optical Character Recognition
@@ -12,12 +12,31 @@ export class Vision {
*/
ocr(path: string): AbortablePromise<string | null> {
let worker: any;
const p = new Promise<string | null>(async res => {
worker = await createWorker(this.ai.options.tesseract?.model || 'eng', 2, {cachePath: this.ai.options.path});
const {data} = await worker.recognize(path);
await worker.terminate();
res(data.text.trim() || null);
let reject: (err: any) => void;
const handler = (err: Error) => {
if(err.stack?.includes('tesseract.js')) {
process.off('uncaughtException', handler);
reject?.(err);
return;
}
throw err;
};
process.on('uncaughtException', handler);
const p = (async () => {
worker = await createWorker(this.ai.options.ocr || 'eng', 2, {cachePath: this.ai.options.path});
return await new Promise<string | null>((res, rej) => {
reject = rej;
worker.recognize(path)
.then(({data}: any) => res(data.text.trim() || null))
.catch(rej);
});
})().finally(() => {
process.off('uncaughtException', handler);
worker?.terminate();
});
return Object.assign(p, {abort: () => worker?.terminate()});
}
}

View File

@@ -4,7 +4,10 @@
"target": "ESNext",
"useDefineForClassFields": true,
"module": "ESNext",
"lib": ["ESNext"],
"lib": [
"ESNext",
"dom"
],
"skipLibCheck": true,
/* Bundler mode */
@@ -15,6 +18,7 @@
"noEmit": true,
/* Linting */
"strict": true
"strict": true,
"noImplicitAny": false
}
}

View File

@@ -1,6 +1,5 @@
import {defineConfig} from 'vite';
import dts from 'vite-plugin-dts';
import {resolve} from 'path';
export default defineConfig({
build: {