feat: add graphile-llm plugin — embedding, RAG, and text-to-vector for PostGraphile

graphile/graphile-llm/README.md

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+# graphile-llm
+
+LLM integration plugin for PostGraphile v5. Provides server-side text-to-vector embedding for pgvector columns.
+
+## Features
+
+- **Text-based vector search**: Adds `text: String` field to `VectorNearbyInput` — clients pass natural language instead of raw float vectors
+- **Text mutation fields**: Adds `{column}Text: String` companion fields on create/update inputs for vector columns
+- **Pluggable embedders**: Provider-based architecture (Ollama via `@agentic-kit/ollama`, with room for OpenAI, etc.)
+- **Per-database configuration**: Reads `llm_module` from `services_public.api_modules` for per-API embedder config
+- **Plugin-conditional**: Fields only appear in the schema when the plugin is loaded
+
+## Usage
+
+```typescript
+import { GraphileLlmPreset } from 'graphile-llm';
+
+const preset = {
+  extends: [
+    GraphileLlmPreset({
+      defaultEmbedder: {
+        provider: 'ollama',
+        model: 'nomic-embed-text',
+        baseUrl: 'http://localhost:11434',
+      },
+    }),
+  ],
+};
+```

graphile/graphile-llm/jest.config.js

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+/** @type {import('ts-jest').JestConfigWithTsJest} */
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  testTimeout: 60000,
+  transform: {
+    '^.+\\.tsx?$': [
+      'ts-jest',
+      {
+        babelConfig: false,
+        tsconfig: 'tsconfig.json'
+      }
+    ]
+  },
+  transformIgnorePatterns: [`/node_modules/*`],
+  testRegex: '(/__tests__/.*|(\\.|/)(test|spec))\\.(jsx?|tsx?)$',
+  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
+  modulePathIgnorePatterns: ['dist/*']
+};

graphile/graphile-llm/package.json

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+{
+  "name": "graphile-llm",
+  "version": "0.1.0",
+  "description": "LLM integration plugin for PostGraphile v5 — server-side text-to-vector embedding and text companion fields for pgvector columns",
+  "author": "Constructive <developers@constructive.io>",
+  "homepage": "https://github.com/constructive-io/constructive",
+  "license": "MIT",
+  "main": "index.js",
+  "module": "esm/index.js",
+  "types": "index.d.ts",
+  "scripts": {
+    "clean": "makage clean",
+    "prepack": "npm run build",
+    "build": "makage build",
+    "build:dev": "makage build --dev",
+    "lint": "eslint . --fix",
+    "test": "jest --forceExit",
+    "test:watch": "jest --watch"
+  },
+  "publishConfig": {
+    "access": "public",
+    "directory": "dist"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/constructive-io/constructive"
+  },
+  "bugs": {
+    "url": "https://github.com/constructive-io/constructive/issues"
+  },
+  "dependencies": {
+    "@agentic-kit/ollama": "^1.0.3"
+  },
+  "peerDependencies": {
+    "@dataplan/pg": "1.0.0",
+    "grafast": "1.0.0",
+    "graphile-build": "5.0.0",
+    "graphile-build-pg": "5.0.0",
+    "graphile-config": "1.0.0",
+    "graphile-search": "workspace:^",
+    "graphile-utils": "5.0.0",
+    "graphql": "16.13.0",
+    "pg-sql2": "5.0.0",
+    "postgraphile": "5.0.0"
+  },
+  "peerDependenciesMeta": {
+    "graphile-search": {
+      "optional": true
+    },
+    "graphile-utils": {
+      "optional": true
+    }
+  },
+  "devDependencies": {
+    "@types/node": "^22.19.11",
+    "graphile-connection-filter": "workspace:^",
+    "graphile-search": "workspace:^",
+    "graphile-test": "workspace:^",
+    "makage": "^0.3.0",
+    "pgsql-test": "workspace:^"
+  },
+  "keywords": [
+    "postgraphile",
+    "graphile",
+    "constructive",
+    "plugin",
+    "llm",
+    "embedding",
+    "pgvector",
+    "rag",
+    "agentic-kit",
+    "ollama",
+    "openai"
+  ]
+}