docs: Update README.md to include Factory CLI support

- Added Factory CLI to the list of supported AI agents.
- Updated CLI tool check and initialization options to reflect Factory CLI integration.
- Revised prerequisites section to include Factory CLI as an AI coding agent.

Author: amogower

README.md

@@ -134,6 +134,7 @@ Want to see Spec Kit in action? Watch our [video overview](https://www.youtube.c
 | [Auggie CLI](https://docs.augmentcode.com/cli/overview)   | ✅ |                                                   |
 | [Roo Code](https://roocode.com/)                          | ✅ |                                                   |
 | [Codex CLI](https://github.com/openai/codex)              | ⚠️ | Codex [does not support](https://github.com/openai/codex/issues/2890) custom arguments for slash commands.  |
+| [Factory CLI](https://factory.ai/)                        | ✅ |                                                   |
 
 ## 🔧 Specify CLI Reference
 
@@ -144,14 +145,14 @@ The `specify` command supports the following options:
 | Command     | Description                                                    |
 |-------------|----------------------------------------------------------------|
 | `init`      | Initialize a new Specify project from the latest template      |
-| `check`     | Check for installed tools (`git`, `claude`, `gemini`, `code`/`code-insiders`, `cursor-agent`, `windsurf`, `qwen`, `opencode`, `codex`) |
+| `check`     | Check for installed tools (`git`, `claude`, `gemini`, `code`/`code-insiders`, `cursor-agent`, `windsurf`, `qwen`, `opencode`, `codex`, `droid`) |
 
 ### `specify init` Arguments & Options
 
 | Argument/Option        | Type     | Description                                                                  |
 |------------------------|----------|------------------------------------------------------------------------------|
 | `<project-name>`       | Argument | Name for your new project directory (optional if using `--here`, or use `.` for current directory) |
-| `--ai`                 | Option   | AI assistant to use: `claude`, `gemini`, `copilot`, `cursor`, `qwen`, `opencode`, `codex`, `windsurf`, `kilocode`, `auggie`, or `roo` |
+| `--ai`                 | Option   | AI assistant to use: `claude`, `gemini`, `copilot`, `cursor`, `qwen`, `opencode`, `codex`, `windsurf`, `kilocode`, `auggie`, `roo`, or `droid` |
 | `--script`             | Option   | Script variant to use: `sh` (bash/zsh) or `ps` (PowerShell)                 |
 | `--ignore-agent-tools` | Flag     | Skip checks for AI agent tools like Claude Code                             |
 | `--no-git`             | Flag     | Skip git repository initialization                                          |
@@ -186,7 +187,7 @@ specify init --here --ai copilot
 
 # Force merge into current (non-empty) directory without confirmation
 specify init . --force --ai copilot
-# or 
+# or
 specify init --here --force --ai copilot
 
 # Skip git initialization
@@ -268,7 +269,7 @@ Our research and experimentation focus on:
 ## 🔧 Prerequisites
 
 - **Linux/macOS** (or WSL2 on Windows)
-- AI coding agent: [Claude Code](https://www.anthropic.com/claude-code), [GitHub Copilot](https://code.visualstudio.com/), [Gemini CLI](https://github.com/google-gemini/gemini-cli), [Cursor](https://cursor.sh/), [Qwen CLI](https://github.com/QwenLM/qwen-code), [opencode](https://opencode.ai/), [Codex CLI](https://github.com/openai/codex), or [Windsurf](https://windsurf.com/)
+- AI coding agent: [Claude Code](https://www.anthropic.com/claude-code), [GitHub Copilot](https://code.visualstudio.com/), [Gemini CLI](https://github.com/google-gemini/gemini-cli), [Cursor](https://cursor.sh/), [Qwen CLI](https://github.com/QwenLM/qwen-code), [opencode](https://opencode.ai/), [Codex CLI](https://github.com/openai/codex), [Windsurf](https://windsurf.com/), or [Factory CLI](https://factory.ai/)
 - [uv](https://docs.astral.sh/uv/) for package management
 - [Python 3.11+](https://www.python.org/downloads/)
 - [Git](https://git-scm.com/downloads)
@@ -330,7 +331,7 @@ specify init . --force --ai claude
 specify init --here --force --ai claude
 ```
 
-The CLI will check if you have Claude Code, Gemini CLI, Cursor CLI, Qwen CLI, opencode, or Codex CLI installed. If you do not, or you prefer to get the templates without checking for the right tools, use `--ignore-agent-tools` with your command:
+The CLI will check if you have Claude Code, Gemini CLI, Cursor CLI, Qwen CLI, opencode, Codex CLI, or Factory CLI installed. If you do not, or you prefer to get the templates without checking for the right tools, use `--ignore-agent-tools` with your command:
 
 ```bash
 specify init <project_name> --ai claude --ignore-agent-tools