docs(library): use visual builder in the Retool alternatives Sim description

Author: waleedlatif1

apps/sim/content/library/best-retool-alternatives-ai-agents-2026/index.mdx

@@ -55,7 +55,7 @@ As of October 2026, Retool appears last as the baseline. The other tools are ran
 
 **Best for:** You want to build and deploy AI agent workflows, with the option to self-host the core software without a license fee.
 
-**What it is:** Sim is the open-source AI workspace where teams build, deploy, and manage AI agents. You can assemble Workflows on a visual canvas, ask Sim in Chat to build and edit them in plain language, and add JavaScript or Python functions when you need code. For agents that need source material, Sim's Knowledge Base combines vector and full-text search and can sync connected sources such as Google Drive and Slack on a schedule.
+**What it is:** Sim is the open-source AI workspace where teams build, deploy, and manage AI agents. You can assemble Workflows in the visual builder, ask Sim in Chat to build and edit them in plain language, and add JavaScript or Python functions when you need code. For agents that need source material, Sim's Knowledge Base combines vector and full-text search and can sync connected sources such as Google Drive and Slack on a schedule.
 
 **Pros:** Sim's Agent blocks support 28 LLM providers, and the workspace connects to [270+ integrations](https://www.sim.ai/integrations). A self-hosted Sim deployment can also point Agent blocks at local or self-hosted endpoints such as Ollama, vLLM, LM Studio, or LiteLLM. Workspace bring-your-own-key (BYOK) credentials, meaning your own model provider API keys, work on every Sim Cloud plan.