diff --git a/CLAUDE.md b/CLAUDE.md
new file mode 100644
index 0000000..bd46c64
--- /dev/null
+++ b/CLAUDE.md
@@ -0,0 +1,60 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Commands
+
+```bash
+# Build
+npm run build          # Compile TypeScript to ./dist/
+
+# Test
+npm test               # Run all tests with coverage (requires .env file)
+npm run test:ci        # Run tests for CI (no .env required)
+
+# Run a single test file
+npx jest tests/run/yepcodeRun.test.ts
+
+# Lint
+npm run lint           # Check for lint errors
+npm run lint:fix       # Auto-fix lint errors
+```
+
+Tests require a `.env` file with `YEPCODE_*` credentials to run against the real API.
+
+## Architecture
+
+This is a zero-dependency TypeScript SDK for the YepCode Cloud API. It requires Node.js >= 18 (uses native `fetch`). Output is compiled CommonJS to `./dist/`.
+
+### Public surface (`src/index.ts`)
+
+Four exported classes:
+- **`YepCodeRun`** — Execute JavaScript/Python code in isolated YepCode sandboxes. Creates processes (deduplicated by SHA256 hash of code), executes them, and returns `Execution` instances.
+- **`YepCodeEnv`** — CRUD for team-level environment variables with auto-pagination.
+- **`YepCodeStorage`** — Upload/list/download/delete files (accepts `File`, `Blob`, or `Readable` streams).
+- **`YepCodeApi`** — Raw HTTP client exposing the full REST API (processes, executions, schedules, modules, sandboxes, service accounts).
+
+### Key internals
+
+**`src/api/yepcodeApi.ts`** — The core HTTP client (~820 lines). Handles:
+- Auth via API token, client credentials (OAuth), or direct access token
+- Auto-refresh of expired access tokens
+- All REST endpoints as typed methods
+
+**`src/run/execution.ts`** — Wraps a running execution with adaptive polling:
+- 250ms × 4, then 500ms × 8, then 1000ms thereafter
+- Logs polled every 2s or on completion
+- Event callbacks: `onLog`, `onFinish`, `onError`
+
+**`src/api/configManager.ts`** — Reads `YEPCODE_API_TOKEN`, `YEPCODE_CLIENT_ID`, `YEPCODE_CLIENT_SECRET`, `YEPCODE_TEAM_ID`, `YEPCODE_ACCESS_TOKEN`, `YEPCODE_API_HOST` from the environment.
+
+**`src/utils/languageDetector.ts`** — Regex/scoring-based JS vs Python detection used when language is not specified explicitly.
+
+## OpenAPI spec
+
+The live spec is always available at:
+```
+https://cloud.yepcode.io/api/rest/public/api-docs
+```
+
+Fetch it with `WebFetch` to audit which endpoints are missing from `src/api/yepcodeApi.ts` before adding new ones. New endpoints are deployed to that URL before this SDK is updated.
diff --git a/src/api/types.ts b/src/api/types.ts
index fa2ae87..d1c23cb 100644
--- a/src/api/types.ts
+++ b/src/api/types.ts
@@ -1,5 +1,7 @@
 import { Readable } from "stream";
 
+export type ProgrammingLanguage = "JAVASCRIPT" | "PYTHON";
+
 export interface YepCodeApiConfig {
   apiHost?: string;
   timeout?: number;
@@ -15,7 +17,7 @@ export interface CreateProcessInput {
   slug?: string;
   description?: string;
   readme?: string;
-  programmingLanguage?: "JAVASCRIPT" | "PYTHON";
+  programmingLanguage?: ProgrammingLanguage;
   sourceCode?: string;
   parametersSchema?: string;
   webhook?: WebhookInput;
@@ -141,7 +143,7 @@ export interface Process {
       [key: string]: any;
     };
   };
-  programmingLanguage?: "JAVASCRIPT" | "PYTHON";
+  programmingLanguage?: ProgrammingLanguage;
   sourceCode?: string;
   webhook?: ProcessWebhook;
   settings?: ProcessSettings;
@@ -279,7 +281,7 @@ export interface WebhookInput {
 
 export interface VersionedProcess {
   id: string;
-  programmingLanguage: "JAVASCRIPT" | "PYTHON";
+  programmingLanguage: ProgrammingLanguage;
   sourceCode: string;
   parametersSchema: string;
   readme: string;
@@ -330,7 +332,7 @@ export interface VersionedProcessAliasesPaginatedResult {
 export interface Module {
   id: string;
   name: string;
-  programmingLanguage?: "JAVASCRIPT" | "PYTHON";
+  programmingLanguage?: ProgrammingLanguage;
   sourceCode?: string;
   createdBy?: string;
   createdAt?: string;
@@ -340,7 +342,7 @@ export interface Module {
 
 export interface CreateModuleInput {
   name: string;
-  programmingLanguage?: "JAVASCRIPT" | "PYTHON";
+  programmingLanguage?: ProgrammingLanguage;
   sourceCode?: string;
   script?: {
     programmingLanguage?: string;
@@ -367,7 +369,7 @@ export interface ModulesPaginatedResult {
 
 export interface VersionedModule {
   id: string;
-  programmingLanguage: "JAVASCRIPT" | "PYTHON";
+  programmingLanguage: ProgrammingLanguage;
   sourceCode: string;
   comment?: string;
   createdBy?: string;
@@ -488,3 +490,54 @@ export interface ServiceAccountsListResult {
   total: number;
   data: ServiceAccount[];
 }
+
+/**
+ * Teams
+ */
+export interface ErrorHandlerConfig {
+  processId?: string;
+  tag?: string;
+}
+
+export interface ErrorHandlerConfigInput {
+  processId?: string;
+  tag?: string;
+}
+
+export interface Team {
+  slug?: string;
+  name?: string;
+  zoneId?: string;
+  parentTeamSlugs?: string[];
+  paramsSchemaValidationEnabled?: boolean;
+  errorHandlerConfig?: ErrorHandlerConfig | null;
+  createdAt?: string;
+}
+
+export interface UpdateTeamInput {
+  name?: string;
+  zoneId?: string;
+  parentTeamSlugs?: string[] | null;
+  paramsSchemaValidationEnabled?: boolean;
+  errorHandlerConfig?: ErrorHandlerConfigInput | null;
+}
+
+/**
+ * Dependencies
+ */
+export interface ProgrammingLanguageManifestInstallation {
+  status?: "PENDING" | "INSTALLING" | "INSTALLED" | "FAILED";
+  error?: string;
+  dependencies?: { [name: string]: string };
+}
+
+export interface ProgrammingLanguageManifest {
+  id?: string;
+  programmingLanguage?: ProgrammingLanguage;
+  dependencies?: { [name: string]: string };
+  nextInstallation?: ProgrammingLanguageManifestInstallation;
+}
+
+export interface UpdateTeamDependenciesInput {
+  dependencies?: { [name: string]: string };
+}
diff --git a/src/api/yepcodeApi.ts b/src/api/yepcodeApi.ts
index 4a142d0..59de9ff 100644
--- a/src/api/yepcodeApi.ts
+++ b/src/api/yepcodeApi.ts
@@ -41,6 +41,11 @@ import {
   Sandbox,
   CreateSandboxInput,
   UpdateSandboxInput,
+  Team,
+  UpdateTeamInput,
+  ProgrammingLanguage,
+  ProgrammingLanguageManifest,
+  UpdateTeamDependenciesInput,
 } from "./types";
 import { Readable } from "stream";
 
@@ -816,4 +821,37 @@ export class YepCodeApi {
   async deleteServiceAccount(id: string): Promise<void> {
     return this.request("DELETE", `/auth/service-accounts/${id}`);
   }
+
+  // Team endpoints
+  async getTeam(): Promise<Team> {
+    return this.request("GET", "/team");
+  }
+
+  async updateTeam(data: UpdateTeamInput): Promise<Team> {
+    return this.request("PATCH", "/team", { data });
+  }
+
+  // Dependencies endpoints
+  async getTeamDependencies(
+    language: ProgrammingLanguage
+  ): Promise<ProgrammingLanguageManifest> {
+    return this.request("GET", `/dependencies/${language}`);
+  }
+
+  async updateTeamDependencies(
+    language: ProgrammingLanguage,
+    data: UpdateTeamDependenciesInput
+  ): Promise<ProgrammingLanguageManifest> {
+    return this.request("PUT", `/dependencies/${language}`, { data });
+  }
+
+  async installTeamDependencies(language: ProgrammingLanguage): Promise<void> {
+    return this.request("POST", `/dependencies/${language}/install`);
+  }
+
+  async discardTeamDependenciesInstallation(
+    language: ProgrammingLanguage
+  ): Promise<ProgrammingLanguageManifest> {
+    return this.request("DELETE", `/dependencies/${language}/install`);
+  }
 }