diff --git a/.claude-plugin/marketplace.json b/.claude-plugin/marketplace.json
index 566ba0f..4967cc2 100644
--- a/.claude-plugin/marketplace.json
+++ b/.claude-plugin/marketplace.json
@@ -15,6 +15,13 @@
       "source": "./",
       "strict": false,
       "skills": ["./skills/reflex-docs"]
+    },
+    {
+      "name": "setup-python-env",
+      "description": "Set up a Python virtual environment and install Reflex for new projects",
+      "source": "./",
+      "strict": false,
+      "skills": ["./skills/setup-python-env"]
     }
   ]
 }
diff --git a/AGENTS.md b/AGENTS.md
new file mode 100644
index 0000000..cdda6eb
--- /dev/null
+++ b/AGENTS.md
@@ -0,0 +1,15 @@
+# Agents
+
+## Initializing a New Reflex Project
+
+When starting a new Reflex project or setting up a development environment, you **must** follow the [setup-python-env](skills/setup-python-env/SKILL.md) skill before doing anything else.
+
+Do not skip any steps. Do not assume a virtual environment or Reflex is already available — always verify first by following the skill's instructions in order.
+
+After the environment is ready and Reflex is installed, run:
+
+```bash
+reflex init
+```
+
+Then proceed with the user's request.
diff --git a/README.md b/README.md
index dcf223a..ac198e7 100644
--- a/README.md
+++ b/README.md
@@ -41,9 +41,10 @@ Clone this repo and copy the skill folders into the appropriate directory for yo
 
 Skills are contextual and auto-loaded based on your conversation.
 
-| Skill                                      | Description                                                                                                                 |
-| ------------------------------------------ | --------------------------------------------------------------------------------------------------------------------------- |
-| [reflex-docs](skills/reflex-docs/SKILL.md) | Framework documentation covering components, state management, events, styling, database, routing, authentication, and more |
+| Skill                                                | Description                                                                                                                 |
+| ---------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------- |
+| [reflex-docs](skills/reflex-docs/SKILL.md)           | Framework documentation covering components, state management, events, styling, database, routing, authentication, and more |
+| [setup-python-env](skills/setup-python-env/SKILL.md) | Set up a Python virtual environment and install Reflex for new projects                                                     |
 
 ## MCP Servers
 
diff --git a/skills/setup-python-env/SKILL.md b/skills/setup-python-env/SKILL.md
new file mode 100644
index 0000000..dbabcd0
--- /dev/null
+++ b/skills/setup-python-env/SKILL.md
@@ -0,0 +1,114 @@
+---
+name: setup-python-env
+description: >
+  Set up a Python virtual environment and install Reflex. Use when initializing a new Reflex project,
+  setting up a development environment, or when the user needs to create a venv and install dependencies.
+  Load when there is no .venv directory, when the user asks to start a new Reflex app, or when
+  imports fail due to missing packages.
+---
+
+# Python Environment Setup for Reflex
+
+This skill handles creating a Python virtual environment and installing Reflex.
+
+## Step 1: Check for an existing virtual environment
+
+Look for a `.venv` directory in the project root:
+
+```bash
+ls -d .venv 2>/dev/null
+```
+
+If `.venv` exists, activate it and skip to **Step 3**.
+
+```bash
+source .venv/bin/activate
+```
+
+## Step 2: Create the virtual environment
+
+If no `.venv` exists, determine which tools are available.
+
+### Option A: `uv` is available
+
+Check if `uv` is installed:
+
+```bash
+uv --version
+```
+
+If `uv` is found:
+
+1. If no `pyproject.toml` exists, initialize one:
+
+   ```bash
+   uv init --bare
+   ```
+
+2. Create the virtual environment:
+
+   ```bash
+   uv venv .venv
+   ```
+
+3. Activate it:
+
+   ```bash
+   source .venv/bin/activate
+   ```
+
+Skip to **Step 3**.
+
+### Option B: Fall back to `python` / `pip`
+
+If `uv` is not available, check the Python version:
+
+```bash
+python3 --version
+```
+
+If the version is **older than 3.10**, stop and inform the user:
+
+> Python 3.10 or newer is required. Please install a more up-to-date version of Python before continuing.
+
+If the version is **3.10 or newer**:
+
+1. Create the virtual environment:
+
+   ```bash
+   python3 -m venv .venv
+   ```
+
+2. Activate it:
+
+   ```bash
+   source .venv/bin/activate
+   ```
+
+3. Upgrade pip:
+
+   ```bash
+   pip install --upgrade pip
+   ```
+
+## Step 3: Install Reflex
+
+Check if Reflex is already installed:
+
+```bash
+pip show reflex 2>/dev/null
+```
+
+If Reflex is **not** installed:
+
+### If using `uv`:
+
+```bash
+uv add reflex
+```
+
+### If using `pip`:
+
+```bash
+pip install reflex
+```