diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d92458c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+node_modules/
+deno.lock
+.npmrc
\ No newline at end of file
diff --git a/deno.json b/deno.json
new file mode 100644
index 0000000..6a62f3d
--- /dev/null
+++ b/deno.json
@@ -0,0 +1,33 @@
+{
+  "name": "@alkdev/storage",
+  "version": "0.1.0",
+  "license": "MIT",
+  "exports": {
+    ".": "./mod.ts",
+    "./graphs": "./src/graphs/mod.ts",
+    "./sqlite": "./src/sqlite/mod.ts",
+    "./pg": "./src/pg/mod.ts"
+  },
+  "imports": {
+    "@alkdev/typebox": "npm:@alkdev/typebox",
+    "@alkdev/drizzlebox": "npm:@alkdev/drizzlebox",
+    "drizzle-orm": "npm:drizzle-orm",
+    "drizzle-orm/sqlite-core": "npm:drizzle-orm/sqlite-core",
+    "drizzle-orm/pg-core": "npm:drizzle-orm/pg-core",
+    "@libsql/client": "npm:@libsql/client",
+    "postgres": "npm:postgres",
+    "@std/assert": "jsr:@std/assert"
+  },
+  "lint": {
+    "rules": {
+      "exclude": ["no-slow-types"]
+    }
+  },
+  "tasks": {
+    "check": "deno check mod.ts src/graphs/mod.ts src/sqlite/mod.ts",
+    "test": "deno test --allow-all test/",
+    "lint": "deno lint",
+    "fmt": "deno fmt",
+    "publish:dry": "deno publish --allow-slow-types --dry-run"
+  }
+}
\ No newline at end of file
diff --git a/mod.ts b/mod.ts
new file mode 100644
index 0000000..085d835
--- /dev/null
+++ b/mod.ts
@@ -0,0 +1 @@
+export * from "./src/graphs/mod.ts";
\ No newline at end of file
diff --git a/src/graphs/mod.ts b/src/graphs/mod.ts
new file mode 100644
index 0000000..ad6a91b
--- /dev/null
+++ b/src/graphs/mod.ts
@@ -0,0 +1,2 @@
+export * from "./types.ts";
+export * from "./schemaBuilder.ts";
\ No newline at end of file
diff --git a/src/graphs/schemaBuilder.ts b/src/graphs/schemaBuilder.ts
new file mode 100644
index 0000000..b138583
--- /dev/null
+++ b/src/graphs/schemaBuilder.ts
@@ -0,0 +1,63 @@
+import { KindGuard, type TSchema } from "@alkdev/typebox";
+import { Value } from "@alkdev/typebox/value";
+import { assert } from "@std/assert";
+import { GraphSchema, GraphConfig, NodeType, EdgeType } from "./types.ts";
+
+export class SchemaBuilder {
+  private schema: {
+    config: Record<string, unknown>;
+    nodeTypes: Record<string, NodeType>;
+    edgeTypes: Record<string, EdgeType>;
+  } = {
+    config: {},
+    nodeTypes: {},
+    edgeTypes: {},
+  };
+
+  config(config: Partial<GraphConfig>): SchemaBuilder {
+    const configObj = Value.Default(GraphConfig, config) as GraphConfig;
+    this.check(GraphConfig, configObj);
+    this.schema.config = configObj as Record<string, unknown>;
+    return this;
+  }
+
+  nodeType(name: string, schema: TSchema): SchemaBuilder {
+    assert(KindGuard.IsSchema(schema), `type '${name}' is not a valid json schema.`);
+
+    if (!this.schema.nodeTypes) this.schema.nodeTypes = {};
+    const nodeTypeObj: NodeType = { name, schema };
+
+    this.check(NodeType, nodeTypeObj);
+    this.schema.nodeTypes[name] = nodeTypeObj;
+    return this;
+  }
+
+  edgeType(
+    name: string,
+    schema: TSchema,
+    options?: { allowedSourceTypes?: string[]; allowedTargetTypes?: string[] },
+  ): SchemaBuilder {
+    assert(KindGuard.IsSchema(schema), `type '${name}' is not a valid json schema.`);
+
+    if (!this.schema.edgeTypes) this.schema.edgeTypes = {};
+    const edgeTypeObj: EdgeType = { name, schema, ...options };
+
+    this.check(EdgeType, edgeTypeObj);
+    this.schema.edgeTypes[name] = edgeTypeObj;
+    return this;
+  }
+
+  check(schema: TSchema, value: unknown): void {
+    if (!Value.Check(schema, value)) {
+      const errors = [...Value.Errors(schema, value)];
+      throw new Error(
+        `Invalid schema structure: ${JSON.stringify(errors.map((e) => `${e.path}: ${e.message}`))}`,
+      );
+    }
+  }
+
+  build(): GraphSchema {
+    this.check(GraphSchema, this.schema);
+    return this.schema as GraphSchema;
+  }
+}
\ No newline at end of file
diff --git a/src/graphs/types.ts b/src/graphs/types.ts
new file mode 100644
index 0000000..b5e8c20
--- /dev/null
+++ b/src/graphs/types.ts
@@ -0,0 +1,70 @@
+import { Type, type Static, type TSchema } from "@alkdev/typebox";
+
+export const BaseNodeAttributes: TSchema = Type.Object({
+  created: Type.Optional(Type.String({ format: "date-time" })),
+  modified: Type.Optional(Type.String({ format: "date-time" })),
+  metadata: Type.Optional(Type.Record(Type.String(), Type.Any())),
+});
+
+export type BaseNodeAttributes = Static<typeof BaseNodeAttributes>;
+
+export const BaseEdgeAttributes: TSchema = Type.Object({
+  type: Type.String(),
+  metadata: Type.Optional(Type.Record(Type.String(), Type.Any())),
+});
+
+export type BaseEdgeAttributes = Static<typeof BaseEdgeAttributes>;
+
+export const GraphConfig: TSchema = Type.Object({
+  type: Type.Union([
+    Type.Literal("directed"),
+    Type.Literal("undirected"),
+    Type.Literal("mixed"),
+  ], { default: "mixed" }),
+  multi: Type.Boolean({ default: true }),
+  allowSelfLoops: Type.Boolean({ default: true }),
+});
+
+export type GraphConfig = Static<typeof GraphConfig>;
+
+export const NodeType: TSchema = Type.Object({
+  name: Type.String(),
+  schema: Type.Any(),
+});
+
+export type NodeType = Static<typeof NodeType>;
+
+export const EdgeType: TSchema = Type.Object({
+  name: Type.String(),
+  schema: Type.Any(),
+  allowedSourceTypes: Type.Optional(Type.Array(Type.String())),
+  allowedTargetTypes: Type.Optional(Type.Array(Type.String())),
+});
+
+export type EdgeType = Static<typeof EdgeType>;
+
+export const GraphSchema: TSchema = Type.Object({
+  config: GraphConfig,
+  nodeTypes: Type.Record(Type.String(), NodeType),
+  edgeTypes: Type.Record(Type.String(), EdgeType),
+});
+
+export type GraphSchema = Static<typeof GraphSchema>;
+
+export enum EnumGraphStatus {
+  Active = "active",
+  Archived = "archived",
+  Draft = "draft",
+}
+
+export type GraphStatus = Static<typeof GraphStatus>;
+export const GraphStatus: TSchema = Type.Enum(EnumGraphStatus);
+
+export enum EnumGraphBaseType {
+  Directed = "directed",
+  Undirected = "undirected",
+  Mixed = "mixed",
+}
+
+export type GraphBaseType = Static<typeof GraphBaseType>;
+export const GraphBaseType: TSchema = Type.Enum(EnumGraphBaseType);
\ No newline at end of file
diff --git a/src/pg/mod.ts b/src/pg/mod.ts
new file mode 100644
index 0000000..1376f52
--- /dev/null
+++ b/src/pg/mod.ts
@@ -0,0 +1,3 @@
+// Postgres host — not yet implemented
+// Will mirror sqlite/ structure with pgTable, jsonb(), timestamp(), pgEnum, etc.
+// Import pattern: import { ... } from "@alkdev/storage/pg"
\ No newline at end of file
diff --git a/src/sqlite/client.ts b/src/sqlite/client.ts
new file mode 100644
index 0000000..5177118
--- /dev/null
+++ b/src/sqlite/client.ts
@@ -0,0 +1,11 @@
+import { drizzle, type LibSQLDatabase } from "drizzle-orm/libsql";
+import type { Client } from "@libsql/client";
+import * as schema from "./schema.ts";
+
+export type SqliteSchema = typeof schema;
+
+export type SqliteDatabase = LibSQLDatabase<SqliteSchema>;
+
+export function createSqliteDatabase(client: Client): SqliteDatabase {
+  return drizzle(client, { schema }) as SqliteDatabase;
+}
\ No newline at end of file
diff --git a/src/sqlite/mod.ts b/src/sqlite/mod.ts
new file mode 100644
index 0000000..84a76fc
--- /dev/null
+++ b/src/sqlite/mod.ts
@@ -0,0 +1,2 @@
+export * from "./schema.ts";
+export * from "./client.ts";
\ No newline at end of file
diff --git a/src/sqlite/relations.ts b/src/sqlite/relations.ts
new file mode 100644
index 0000000..ec4c281
--- /dev/null
+++ b/src/sqlite/relations.ts
@@ -0,0 +1,68 @@
+import { relations } from "drizzle-orm";
+import {
+  graphTypes,
+  nodeTypes,
+  edgeTypes,
+  graphs,
+  nodes,
+  edges,
+} from "./tables/index.ts";
+
+export const graphTypeRelations = relations(graphTypes, ({ many }) => ({
+  nodeTypes: many(nodeTypes),
+  edgeTypes: many(edgeTypes),
+  graphs: many(graphs),
+}));
+
+export const nodeTypesRelations = relations(nodeTypes, ({ one }) => ({
+  graphType: one(graphTypes, {
+    fields: [nodeTypes.graphTypeId],
+    references: [graphTypes.id],
+  }),
+}));
+
+export const edgeTypesRelations = relations(edgeTypes, ({ one }) => ({
+  graphType: one(graphTypes, {
+    fields: [edgeTypes.graphTypeId],
+    references: [graphTypes.id],
+  }),
+}));
+
+export const graphsRelations = relations(graphs, ({ one, many }) => ({
+  graphType: one(graphTypes, {
+    fields: [graphs.graphTypeId],
+    references: [graphTypes.id],
+  }),
+  nodes: many(nodes),
+  edges: many(edges),
+}));
+
+export const edgesRelations = relations(edges, ({ one }) => ({
+  graph: one(graphs, {
+    fields: [edges.graphId],
+    references: [graphs.id],
+  }),
+  sourceNode: one(nodes, {
+    fields: [edges.graphId, edges.sourceNodeKey],
+    references: [nodes.graphId, nodes.key],
+    relationName: "sourceNode",
+  }),
+  targetNode: one(nodes, {
+    fields: [edges.graphId, edges.targetNodeKey],
+    references: [nodes.graphId, nodes.key],
+    relationName: "targetNode",
+  }),
+}));
+
+export const nodesRelations = relations(nodes, ({ one, many }) => ({
+  graph: one(graphs, {
+    fields: [nodes.graphId],
+    references: [graphs.id],
+  }),
+  outgoingEdges: many(edges, {
+    relationName: "sourceNode",
+  }),
+  incomingEdges: many(edges, {
+    relationName: "targetNode",
+  }),
+}));
\ No newline at end of file
diff --git a/src/sqlite/schema.ts b/src/sqlite/schema.ts
new file mode 100644
index 0000000..c9e7961
--- /dev/null
+++ b/src/sqlite/schema.ts
@@ -0,0 +1,2 @@
+export * from "./tables/index.ts";
+export * from "./relations.ts";
\ No newline at end of file
diff --git a/src/sqlite/tables/actors.ts b/src/sqlite/tables/actors.ts
new file mode 100644
index 0000000..7291e70
--- /dev/null
+++ b/src/sqlite/tables/actors.ts
@@ -0,0 +1,30 @@
+import { sqliteTable, text } from "drizzle-orm/sqlite-core";
+import { createInsertSchema, createSelectSchema } from "@alkdev/drizzlebox";
+import { Type, type Static } from "@alkdev/typebox";
+import { commonCols, ACTOR_TYPE } from "./common.ts";
+
+export const actors = sqliteTable("actors", {
+  ...commonCols,
+  name: text("name").notNull(),
+  type: text("type", { enum: ["human", "llm", "agent"] }).notNull(),
+});
+
+export const SelectActor = createSelectSchema(actors, {
+  metadata: Type.Object({}, { additionalProperties: true }),
+  createdAt: Type.Date(),
+  updatedAt: Type.Date(),
+});
+
+export type SelectActor = Static<typeof SelectActor>;
+
+export const InsertActor = createInsertSchema(actors, {
+  name: Type.String({ minLength: 1, maxLength: 255 }),
+  type: Type.Union([
+    Type.Literal(ACTOR_TYPE.Human),
+    Type.Literal(ACTOR_TYPE.Llm),
+    Type.Literal(ACTOR_TYPE.Agent),
+  ]),
+  metadata: Type.Optional(Type.Object({}, { additionalProperties: true })),
+});
+
+export type InsertActor = Static<typeof InsertActor>;
\ No newline at end of file
diff --git a/src/sqlite/tables/common.ts b/src/sqlite/tables/common.ts
new file mode 100644
index 0000000..796a4f6
--- /dev/null
+++ b/src/sqlite/tables/common.ts
@@ -0,0 +1,21 @@
+import { sql } from "drizzle-orm";
+import { text, integer } from "drizzle-orm/sqlite-core";
+
+export const commonCols = {
+  id: text("id").primaryKey(),
+  metadata: text("metadata", { mode: "json" }).$type<Record<string, unknown>>().default({}),
+  createdAt: integer("created_at", { mode: "timestamp" })
+    .default(sql`(strftime('%s', 'now'))`)
+    .notNull(),
+  updatedAt: integer("updated_at", { mode: "timestamp" })
+    .default(sql`(strftime('%s', 'now'))`)
+    .notNull(),
+};
+
+export const ACTOR_TYPE = {
+  Human: "human",
+  Llm: "llm",
+  Agent: "agent",
+} as const;
+
+export type EnumValues<T extends Record<string, string>> = T[keyof T];
\ No newline at end of file
diff --git a/src/sqlite/tables/edgeTypes.ts b/src/sqlite/tables/edgeTypes.ts
new file mode 100644
index 0000000..901cd28
--- /dev/null
+++ b/src/sqlite/tables/edgeTypes.ts
@@ -0,0 +1,37 @@
+import { sqliteTable, text, unique } from "drizzle-orm/sqlite-core";
+import { createInsertSchema, createSelectSchema } from "@alkdev/drizzlebox";
+import { Type, type Static } from "@alkdev/typebox";
+import { commonCols } from "./common.ts";
+import { graphTypes } from "./graphTypes.ts";
+
+export const edgeTypes = sqliteTable("edge_types", {
+  ...commonCols,
+  graphTypeId: text("graph_type_id").notNull().references(() => graphTypes.id, { onDelete: "cascade" }),
+  name: text("name").notNull(),
+  description: text("description").default(""),
+  schema: text("schema", { mode: "json" }).$type<Record<string, unknown>>().notNull(),
+  allowedSourceTypes: text("allowed_source_types", { mode: "json" }).$type<string[]>().default([]),
+  allowedTargetTypes: text("allowed_target_types", { mode: "json" }).$type<string[]>().default([]),
+}, (table) => ({
+  graphTypeNameIdx: unique().on(table.graphTypeId, table.name),
+}));
+
+export const SelectEdgeType = createSelectSchema(edgeTypes, {
+  schema: Type.Unknown(),
+  allowedSourceTypes: Type.Array(Type.String()),
+  allowedTargetTypes: Type.Array(Type.String()),
+  metadata: Type.Object({}, { additionalProperties: true }),
+  createdAt: Type.Date(),
+  updatedAt: Type.Date(),
+});
+
+export type SelectEdgeType = Static<typeof SelectEdgeType>;
+
+export const InsertEdgeType = createInsertSchema(edgeTypes, {
+  name: Type.String({ minLength: 2 }),
+  schema: Type.Unknown(),
+  allowedSourceTypes: Type.Optional(Type.Array(Type.String())),
+  allowedTargetTypes: Type.Optional(Type.Array(Type.String())),
+});
+
+export type InsertEdgeType = Static<typeof InsertEdgeType>;
\ No newline at end of file
diff --git a/src/sqlite/tables/edges.ts b/src/sqlite/tables/edges.ts
new file mode 100644
index 0000000..1fea60a
--- /dev/null
+++ b/src/sqlite/tables/edges.ts
@@ -0,0 +1,44 @@
+import { sqliteTable, text, integer, unique, foreignKey } from "drizzle-orm/sqlite-core";
+import { createInsertSchema, createSelectSchema } from "@alkdev/drizzlebox";
+import { Type, type Static } from "@alkdev/typebox";
+import { commonCols } from "./common.ts";
+import { graphs } from "./graphs.ts";
+import { nodes } from "./nodes.ts";
+
+const AttributesSchema = Type.Record(Type.String(), Type.Any());
+
+export const edges = sqliteTable("edges", {
+  ...commonCols,
+  graphId: text("graph_id").notNull().references(() => graphs.id, { onDelete: "cascade" }),
+  key: text("key"),
+  sourceNodeKey: text("source_node_key").notNull(),
+  targetNodeKey: text("target_node_key").notNull(),
+  attributes: text("attributes", { mode: "json" }).notNull().default({}),
+  undirected: integer("undirected", { mode: "boolean" }).default(false),
+}, (table) => ({
+  graphKeyIdx: unique().on(table.graphId, table.key),
+  sourceFk: foreignKey({
+    columns: [table.graphId, table.sourceNodeKey],
+    foreignColumns: [nodes.graphId, nodes.key],
+  }).onDelete("cascade"),
+  targetFk: foreignKey({
+    columns: [table.graphId, table.targetNodeKey],
+    foreignColumns: [nodes.graphId, nodes.key],
+  }).onDelete("cascade"),
+}));
+
+export const SelectEdge = createSelectSchema(edges, {
+  attributes: AttributesSchema,
+  metadata: Type.Object({}, { additionalProperties: true }),
+  createdAt: Type.Date(),
+  updatedAt: Type.Date(),
+});
+
+export type SelectEdge = Static<typeof SelectEdge>;
+
+export const InsertEdge = createInsertSchema(edges, {
+  key: Type.String({ minLength: 1 }),
+  attributes: AttributesSchema,
+});
+
+export type InsertEdge = Static<typeof InsertEdge>;
\ No newline at end of file
diff --git a/src/sqlite/tables/graphTypes.ts b/src/sqlite/tables/graphTypes.ts
new file mode 100644
index 0000000..ac0ee5d
--- /dev/null
+++ b/src/sqlite/tables/graphTypes.ts
@@ -0,0 +1,38 @@
+import { sqliteTable, text, integer } from "drizzle-orm/sqlite-core";
+import { createInsertSchema, createSelectSchema } from "@alkdev/drizzlebox";
+import { Type, type Static } from "@alkdev/typebox";
+import { commonCols } from "./common.ts";
+
+
+const ConfigSchema = Type.Object({
+  type: Type.Union([
+    Type.Literal("directed"),
+    Type.Literal("undirected"),
+    Type.Literal("mixed"),
+  ], { default: "mixed" }),
+  multi: Type.Boolean({ default: true }),
+  allowSelfLoops: Type.Boolean({ default: true }),
+});
+
+export const graphTypes = sqliteTable("graph_types", {
+  ...commonCols,
+  name: text("name").notNull().unique(),
+  description: text("description").default(""),
+  config: text("config", { mode: "json" }).$type<Static<typeof ConfigSchema>>().notNull(),
+  version: integer("version").notNull().default(1),
+});
+
+export const SelectGraphType = createSelectSchema(graphTypes, {
+  metadata: Type.Object({}, { additionalProperties: true }),
+  createdAt: Type.Date(),
+  updatedAt: Type.Date(),
+});
+
+export type SelectGraphType = Static<typeof SelectGraphType>;
+
+export const InsertGraphType = createInsertSchema(graphTypes, {
+  name: Type.String({ minLength: 2, maxLength: 255 }),
+  description: Type.Optional(Type.String()),
+});
+
+export type InsertGraphType = Static<typeof InsertGraphType>;
\ No newline at end of file
diff --git a/src/sqlite/tables/graphs.ts b/src/sqlite/tables/graphs.ts
new file mode 100644
index 0000000..8550de7
--- /dev/null
+++ b/src/sqlite/tables/graphs.ts
@@ -0,0 +1,35 @@
+import { sqliteTable, text } from "drizzle-orm/sqlite-core";
+import { createInsertSchema, createSelectSchema } from "@alkdev/drizzlebox";
+import { Type, type Static } from "@alkdev/typebox";
+import { commonCols } from "./common.ts";
+import { graphTypes } from "./graphTypes.ts";
+import { EnumGraphStatus } from "../../graphs/types.ts";
+
+export const graphs = sqliteTable("graphs", {
+  ...commonCols,
+  graphTypeId: text("graph_type_id").references(() => graphTypes.id, { onDelete: "set null" }),
+  name: text("name").notNull(),
+  description: text("description").default(""),
+  status: text("status", { enum: ["active", "archived", "draft"] })
+    .default("draft")
+    .notNull(),
+});
+
+export const SelectGraph = createSelectSchema(graphs, {
+  metadata: Type.Object({}, { additionalProperties: true }),
+  createdAt: Type.Date(),
+  updatedAt: Type.Date(),
+});
+
+export type SelectGraph = Static<typeof SelectGraph>;
+
+export const InsertGraph = createInsertSchema(graphs, {
+  name: Type.String({ minLength: 2 }),
+  status: Type.Optional(Type.Union([
+    Type.Literal(EnumGraphStatus.Active),
+    Type.Literal(EnumGraphStatus.Archived),
+    Type.Literal(EnumGraphStatus.Draft),
+  ])),
+});
+
+export type InsertGraph = Static<typeof InsertGraph>;
\ No newline at end of file
diff --git a/src/sqlite/tables/index.ts b/src/sqlite/tables/index.ts
new file mode 100644
index 0000000..345c066
--- /dev/null
+++ b/src/sqlite/tables/index.ts
@@ -0,0 +1,23 @@
+export { graphs } from "./graphs.ts";
+export type { SelectGraph, InsertGraph } from "./graphs.ts";
+export { SelectGraph as SelectGraphSchema, InsertGraph as InsertGraphSchema } from "./graphs.ts";
+export { nodes } from "./nodes.ts";
+export type { InsertNode } from "./nodes.ts";
+export { InsertNodeSchema } from "./nodes.ts";
+export { edges } from "./edges.ts";
+export type { SelectEdge, InsertEdge } from "./edges.ts";
+export { SelectEdge as SelectEdgeSchema, InsertEdge as InsertEdgeSchema } from "./edges.ts";
+export { graphTypes } from "./graphTypes.ts";
+export type { SelectGraphType, InsertGraphType } from "./graphTypes.ts";
+export { SelectGraphType as SelectGraphTypeSchema, InsertGraphType as InsertGraphTypeSchema } from "./graphTypes.ts";
+export { nodeTypes } from "./nodeTypes.ts";
+export type { SelectNodeType, InsertNodeType } from "./nodeTypes.ts";
+export { SelectNodeType as SelectNodeTypeSchema, InsertNodeType as InsertNodeTypeSchema } from "./nodeTypes.ts";
+export { edgeTypes } from "./edgeTypes.ts";
+export type { SelectEdgeType, InsertEdgeType } from "./edgeTypes.ts";
+export { SelectEdgeType as SelectEdgeTypeSchema, InsertEdgeType as InsertEdgeTypeSchema } from "./edgeTypes.ts";
+export { actors } from "./actors.ts";
+export type { SelectActor, InsertActor } from "./actors.ts";
+export { SelectActor as SelectActorSchema, InsertActor as InsertActorSchema } from "./actors.ts";
+export { commonCols, ACTOR_TYPE } from "./common.ts";
+export type { EnumValues } from "./common.ts";
\ No newline at end of file
diff --git a/src/sqlite/tables/nodeTypes.ts b/src/sqlite/tables/nodeTypes.ts
new file mode 100644
index 0000000..23839ab
--- /dev/null
+++ b/src/sqlite/tables/nodeTypes.ts
@@ -0,0 +1,31 @@
+import { sqliteTable, text, unique } from "drizzle-orm/sqlite-core";
+import { createInsertSchema, createSelectSchema } from "@alkdev/drizzlebox";
+import { Type, type Static } from "@alkdev/typebox";
+import { commonCols } from "./common.ts";
+import { graphTypes } from "./graphTypes.ts";
+
+export const nodeTypes = sqliteTable("node_types", {
+  ...commonCols,
+  graphTypeId: text("graph_type_id").notNull().references(() => graphTypes.id, { onDelete: "cascade" }),
+  name: text("name").notNull(),
+  description: text("description").default(""),
+  schema: text("schema", { mode: "json" }).$type<Record<string, unknown>>().notNull(),
+}, (table) => ({
+  graphTypeNameIdx: unique().on(table.graphTypeId, table.name),
+}));
+
+export const SelectNodeType = createSelectSchema(nodeTypes, {
+  schema: Type.Unknown(),
+  metadata: Type.Object({}, { additionalProperties: true }),
+  createdAt: Type.Date(),
+  updatedAt: Type.Date(),
+});
+
+export type SelectNodeType = Static<typeof SelectNodeType>;
+
+export const InsertNodeType = createInsertSchema(nodeTypes, {
+  name: Type.String({ minLength: 2 }),
+  schema: Type.Unknown(),
+});
+
+export type InsertNodeType = Static<typeof InsertNodeType>;
\ No newline at end of file
diff --git a/src/sqlite/tables/nodes.ts b/src/sqlite/tables/nodes.ts
new file mode 100644
index 0000000..8dc54ca
--- /dev/null
+++ b/src/sqlite/tables/nodes.ts
@@ -0,0 +1,23 @@
+import { sqliteTable, text, unique } from "drizzle-orm/sqlite-core";
+import { createInsertSchema } from "@alkdev/drizzlebox";
+import { Type, type Static } from "@alkdev/typebox";
+import { commonCols } from "./common.ts";
+import { graphs } from "./graphs.ts";
+
+const AttributesSchema = Type.Record(Type.String(), Type.Any());
+
+export const nodes = sqliteTable("nodes", {
+  ...commonCols,
+  graphId: text("graph_id").notNull().references(() => graphs.id, { onDelete: "cascade" }),
+  key: text("key").notNull(),
+  attributes: text("attributes", { mode: "json" }).notNull().default({}),
+}, (table) => ({
+  graphKeyIdx: unique().on(table.graphId, table.key),
+}));
+
+export const InsertNodeSchema = createInsertSchema(nodes, {
+  key: Type.String({ minLength: 1 }),
+  attributes: AttributesSchema,
+});
+
+export type InsertNode = Static<typeof InsertNodeSchema>;
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