docs: add Platform Tools CLI guide for crewai tool create/publish/install

Add documentation for the CLI commands referenced in the Create Tool
modal on the platform (crewai tool create, crewai tool publish,
crewai tool install). These commands manage tools on the CrewAI
platform registry — distinct from PyPI publishing.

Changes:
- New guide: docs/en/guides/tools/platform-tools-cli.mdx
  Full lifecycle: create → implement → publish → install
  Covers visibility flags (--public/--private/--force)
  Includes platform vs PyPI comparison
- Updated create-custom-tools.mdx tip to cross-reference both guides
- Added new page to docs.json navigation (all versions)

Resolves EPD-76

Co-authored-by: Diego Nogues <diego@crewai.com>

docs/en/guides/tools/platform-tools-cli.mdx

@@ -0,0 +1,139 @@
+---
+title: Platform Tools CLI
+description: Create, publish, and install custom tools on the CrewAI platform using the CLI.
+icon: terminal
+mode: "wide"
+---
+
+## Overview
+
+The CrewAI CLI provides commands to manage custom tools on the **CrewAI platform** — a hosted tool registry that lets you share tools within your organization and across the community without publishing to PyPI.
+
+| Command | Purpose |
+|---------|---------|
+| `crewai tool create <handle>` | Scaffold a new tool project |
+| `crewai tool publish` | Publish the tool to the CrewAI platform |
+| `crewai tool install <handle>` | Install a platform tool into your crew project |
+
+<Note type="info" title="Platform vs PyPI">
+  These commands manage tools on the **CrewAI platform registry**. If you want to publish a standalone Python package to PyPI instead, see the [Publish Custom Tools to PyPI](/en/guides/tools/publish-custom-tools) guide.
+</Note>
+
+## Prerequisites
+
+- **CrewAI CLI** installed (`pip install crewai`)
+- **Authenticated** with the platform — run `crewai login` first
+
+---
+
+## Step 1: Create a Tool Project
+
+Scaffold a new tool project:
+
+```bash
+crewai tool create my_custom_tool
+```
+
+This generates a project structure with the boilerplate you need to start building your tool.
+
+<Tip>
+  The `handle` is the unique identifier for your tool on the platform. Choose something descriptive and specific to what the tool does.
+</Tip>
+
+### Implement Your Tool
+
+Edit the generated tool file to add your logic. The tool follows the standard CrewAI tools contract — you can subclass `BaseTool` or use the `@tool` decorator:
+
+```python
+from crewai.tools import BaseTool
+
+class MyCustomTool(BaseTool):
+    name: str = "My Custom Tool"
+    description: str = "Description of what this tool does — be specific so agents know when to use it."
+
+    def _run(self, argument: str) -> str:
+        # Your tool logic here
+        return "result"
+```
+
+For the full tools API reference (input schemas, caching, async support, error handling), see the [Create Custom Tools](/en/learn/create-custom-tools) guide.
+
+---
+
+## Step 2: Publish to the Platform
+
+From your tool project directory, publish it to the CrewAI platform:
+
+```bash
+crewai tool publish
+```
+
+### Visibility Options
+
+| Flag | Description |
+|------|-------------|
+| `--public` | Make the tool available to all platform users |
+| `--private` | Restrict visibility to your organization |
+| `--force` | Bypass Git remote validations |
+
+```bash
+# Publish as a public tool
+crewai tool publish --public
+
+# Publish privately (organization only)
+crewai tool publish --private
+```
+
+---
+
+## Step 3: Install a Platform Tool
+
+To install a tool that's been published to the platform:
+
+```bash
+crewai tool install my_custom_tool
+```
+
+Once installed, you can use the tool in your crew like any other tool — assign it to an agent via the `tools` parameter.
+
+---
+
+## Full Lifecycle Example
+
+```bash
+# 1. Authenticate with the platform
+crewai login
+
+# 2. Scaffold a new tool
+crewai tool create weather_lookup
+
+# 3. Implement your logic in the generated project
+cd weather_lookup
+# ... edit the tool file ...
+
+# 4. Publish to the platform
+crewai tool publish --public
+
+# 5. In another project, install and use it
+crewai tool install weather_lookup
+```
+
+---
+
+## Platform Tools vs PyPI Packages
+
+| | Platform Tools | PyPI Packages |
+|---|---|---|
+| **Publish** | `crewai tool publish` | `uv build` + `uv publish` |
+| **Registry** | CrewAI platform | PyPI |
+| **Install** | `crewai tool install <handle>` | `pip install <package>` |
+| **Auth** | `crewai login` | PyPI account + token |
+| **Visibility** | `--public` / `--private` flags | Always public |
+| **Guide** | This page | [Publish Custom Tools](/en/guides/tools/publish-custom-tools) |
+
+---
+
+## Related
+
+- [Create Custom Tools](/en/learn/create-custom-tools) — Python API reference for building tools (BaseTool, @tool decorator)
+- [Publish Custom Tools to PyPI](/en/guides/tools/publish-custom-tools) — package and distribute tools as standalone Python libraries

docs/en/learn/create-custom-tools.mdx

@@ -12,7 +12,9 @@ incorporating the latest functionalities such as tool delegation, error handling
 enabling agents to perform a wide range of actions.
 
 <Tip>
-  **Want to publish your tool for the community?** If you're building a tool that others could benefit from, check out the [Publish Custom Tools](/en/guides/tools/publish-custom-tools) guide to learn how to package and distribute your tool on PyPI.
+  **Want to publish your tool to the CrewAI platform?** Use the CLI to scaffold, publish, and share tools directly on the platform — see the [Platform Tools CLI](/en/guides/tools/platform-tools-cli) guide.
+
+  **Prefer publishing to PyPI?** Check out the [Publish Custom Tools](/en/guides/tools/publish-custom-tools) guide to package and distribute your tool as a standalone Python library.
 </Tip>
 
 ### Subclassing `BaseTool`