**1 issue found** across 30 files Confidence score: **5/5** - This looks low risk to merge: the only issue is a documentation layout mismatch in `packages/docs/v3/integrations/mcp/configuration.mdx`, not application logic. - The reported change (`` with a single remaining card) is a minor presentation cleanup with limited user impact. - Pay close attention to `packages/docs/v3/integrations/mcp/configuration.mdx` - align the `CardGroup` wrapper/column count with the single-card content to avoid awkward docs rendering.

Prompt for AI agents (unresolved issues)

```text Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately. P3: `` now contains only one card after the `BROWSERBASE_PROJECT_ID` card was removed. Either remove the `CardGroup` wrapper or change to `cols={1}`. ```

Architecture diagram

```mermaid sequenceDiagram participant App as "User Application" participant Env as "Environment (.env)" participant SDK as "Stagehand SDK" participant BB_API as "Browserbase API" participant Browser as "Remote Browser" participant LLM as "LLM Provider (OpenAI/Anthropic/Gemini)" Note over App,Env: Configuration Phase App->>Env: CHANGED - Load BROWSERBASE_API_KEY Note right of Env: BROWSERBASE_PROJECT_ID is now optional App->>SDK: new Stagehand({ env: "BROWSERBASE", apiKey }) Note over SDK,BB_API: Session Initialization SDK->>SDK: CHANGED - Construct session params (omit projectId if missing) SDK->>BB_API: POST /sessions (Headers: x-api-key) alt Optional Project Selection SDK->>BB_API: Include projectId in payload (if manually provided) else Default Project SDK->>BB_API: Payload without projectId end BB_API-->>SDK: Session ID & Connect URL Note over SDK,Browser: Execution Loop SDK->>Browser: Connect via WebSocket (CDP) loop Task Execution (act / extract / observe) SDK->>Browser: Fetch DOM / Screenshot Browser-->>SDK: Page State SDK->>LLM: Send context + prompt LLM-->>SDK: Structured Action/Data SDK->>Browser: Execute Playwright/Puppeteer commands end SDK-->>App: Return Result ```

_{Reply with feedback, questions, or to request a fix. Tag `@cubic-dev-ai` to re-run a review, or [fix all with cubic](https://www.cubic.dev/action/fix/pr/browserbase/stagehand/1958/ai_pr_review_1775422023693_2935129a-8d6d-491f-98f0-6c24e40bb4d8?entrySource=github_ui_to_cubic_ui).}