feat: add Forgecode agent support

AGENTS.md

@@ -48,6 +48,7 @@ Specify supports multiple AI agents by generating agent-specific command files a
 | **Kimi Code**              | `.kimi/skills/`        | Markdown | `kimi`          | Kimi Code CLI (Moonshot AI) |
 | **Pi Coding Agent**        | `.pi/prompts/`         | Markdown | `pi`            | Pi terminal coding agent    |
 | **iFlow CLI**              | `.iflow/commands/`     | Markdown | `iflow`         | iFlow CLI (iflow-ai)        |
+| **Forge**                  | `.forge/commands/`     | Markdown | `forge`         | Forge CLI (forgecode.dev)   |
 | **IBM Bob**                | `.bob/commands/`       | Markdown | N/A (IDE-based) | IBM Bob IDE                 |
 | **Trae**                   | `.trae/rules/`         | Markdown | N/A (IDE-based) | Trae IDE                    |
 | **Antigravity**            | `.agent/commands/`     | Markdown | N/A (IDE-based) | Antigravity IDE (`--ai agy --ai-skills`) |
@@ -333,6 +334,7 @@ Require a command-line tool to be installed:
 - **Mistral Vibe**: `vibe` CLI
 - **Pi Coding Agent**: `pi` CLI
 - **iFlow CLI**: `iflow` CLI
+- **Forge**: `forge` CLI
 
 ### IDE-Based Agents
 
@@ -351,7 +353,7 @@ Work within integrated development environments:
 
 ### Markdown Format
 
-Used by: Claude, Cursor, GitHub Copilot, opencode, Windsurf, Junie, Kiro CLI, Amp, SHAI, IBM Bob, Kimi Code, Qwen, Pi, Codex, Auggie, CodeBuddy, Qoder, Roo Code, Kilo Code, Trae, Antigravity, Mistral Vibe, iFlow
+Used by: Claude, Cursor, GitHub Copilot, opencode, Windsurf, Junie, Kiro CLI, Amp, SHAI, IBM Bob, Kimi Code, Qwen, Pi, Codex, Auggie, CodeBuddy, Qoder, Roo Code, Kilo Code, Trae, Antigravity, Mistral Vibe, iFlow, Forge
 
 **Standard format:**
 
@@ -419,9 +421,49 @@ Different agents use different argument placeholders:
 
 - **Markdown/prompt-based**: `$ARGUMENTS`
 - **TOML-based**: `{{args}}`
+- **Forge-specific**: `{{parameters}}` (uses custom parameter syntax)
 - **Script placeholders**: `{SCRIPT}` (replaced with actual script path)
 - **Agent placeholders**: `__AGENT__` (replaced with agent name)
 
+## Special Processing Requirements
+
+Some agents require custom processing beyond the standard template transformations:
+
+### Copilot Integration
+
+GitHub Copilot has unique requirements:
+- Commands use `.agent.md` extension (not `.md`)
+- Each command gets a companion `.prompt.md` file in `.github/prompts/`
+- Installs `.vscode/settings.json` with prompt file recommendations
+- Context file lives at `.github/copilot-instructions.md`
+
+Implementation: Extends `IntegrationBase` with custom `setup()` method that:
+1. Processes templates with `process_template()`
+2. Generates companion `.prompt.md` files
+3. Merges VS Code settings
+
+### Forge Integration
+
+Forge has special frontmatter and argument requirements:
+- Uses `{{parameters}}` instead of `$ARGUMENTS`
+- Strips `handoffs` frontmatter key (Forge-specific collaboration feature)
+- Injects `name` field into frontmatter when missing
+
+Implementation: Extends `MarkdownIntegration` with custom `setup()` method that:
+1. Inherits standard template processing from `MarkdownIntegration`
+2. Adds extra `$ARGUMENTS` → `{{parameters}}` replacement after template processing
+3. Applies Forge-specific transformations via `_apply_forge_transformations()`
+4. Strips `handoffs` frontmatter key
+5. Injects missing `name` fields
+6. Ensures the shared `update-agent-context.*` scripts include a `forge` case that maps context updates to `AGENTS.md` (similar to `opencode`/`codex`/`pi`) and lists `forge` in their usage/help text
+
+### Standard Markdown Agents
+
+Most agents (Bob, Claude, Windsurf, etc.) use `MarkdownIntegration`:
+- Simple subclass with just `key`, `config`, `registrar_config` set
+- Inherits standard processing from `MarkdownIntegration.setup()`
+- No custom processing needed
+
 ## Testing New Agent Integration
 
 1. **Build test**: Run package creation script locally

README.md

@@ -285,6 +285,7 @@ Community projects that extend, visualize, or build on Spec Kit:
 | [CodeBuddy CLI](https://www.codebuddy.ai/cli)                                        | ✅      |                                                                                                                                           |
 | [Codex CLI](https://github.com/openai/codex)                                         | ✅      | Requires `--ai-skills`. Codex recommends [skills](https://developers.openai.com/codex/skills) and treats [custom prompts](https://developers.openai.com/codex/custom-prompts) as deprecated. Spec-kit installs Codex skills into `.agents/skills` and invokes them as `$speckit-<command>`. |
 | [Cursor](https://cursor.sh/)                                                         | ✅      |                                                                                                                                           |
+| [Forge](https://forgecode.dev/)                                                      | ✅      | CLI tool: `forge`                                                                                                                         |
 | [Gemini CLI](https://github.com/google-gemini/gemini-cli)                            | ✅      |                                                                                                                                           |
 | [GitHub Copilot](https://code.visualstudio.com/)                                     | ✅      |                                                                                                                                           |
 | [IBM Bob](https://www.ibm.com/products/bob)                                          | ✅      | IDE-based agent with slash command support                                                                                                |
@@ -314,14 +315,14 @@ 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` plus all CLI-based agents configured in `AGENT_CONFIG` (for example: `claude`, `gemini`, `code`/`code-insiders`, `cursor-agent`, `windsurf`, `junie`, `qwen`, `opencode`, `codex`, `kiro-cli`, `shai`, `qodercli`, `vibe`, `kimi`, `iflow`, `pi`, etc.) |
+| `check` | Check for installed tools: `git` plus all CLI-based agents configured in `AGENT_CONFIG` (for example: `claude`, `gemini`, `code`/`code-insiders`, `cursor-agent`, `windsurf`, `junie`, `qwen`, `opencode`, `codex`, `kiro-cli`, `shai`, `qodercli`, `vibe`, `kimi`, `iflow`, `pi`, `forge`, etc.) |
 
 ### `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 (see `AGENT_CONFIG` for the full, up-to-date list). Common options include: `claude`, `gemini`, `copilot`, `cursor-agent`, `qwen`, `opencode`, `codex`, `windsurf`, `junie`, `kilocode`, `auggie`, `roo`, `codebuddy`, `amp`, `shai`, `kiro-cli` (`kiro` alias), `agy`, `bob`, `qodercli`, `vibe`, `kimi`, `iflow`, `pi`, or `generic` (requires `--ai-commands-dir`) |
+| `--ai`                 | Option   | AI assistant to use (see `AGENT_CONFIG` for the full, up-to-date list). Common options include: `claude`, `gemini`, `copilot`, `cursor-agent`, `qwen`, `opencode`, `codex`, `windsurf`, `junie`, `kilocode`, `auggie`, `roo`, `codebuddy`, `amp`, `shai`, `kiro-cli` (`kiro` alias), `agy`, `bob`, `qodercli`, `vibe`, `kimi`, `iflow`, `pi`, `forge`, or `generic` (requires `--ai-commands-dir`) |
 | `--ai-commands-dir`    | Option   | Directory for agent command files (required with `--ai generic`, e.g. `.myagent/commands/`)                                                                                                                                                                                                                                                                                               |
 | `--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                                                                                                                                                                                                                                                                                                                                           |
@@ -376,6 +377,9 @@ specify init my-project --ai codex --ai-skills
 # Initialize with Antigravity support
 specify init my-project --ai agy --ai-skills
 
+# Initialize with Forge support
+specify init my-project --ai forge
+
 # Initialize with an unsupported agent (generic / bring your own agent)
 specify init my-project --ai generic --ai-commands-dir .myagent/commands/
 
@@ -621,7 +625,7 @@ 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, Codex CLI, Qoder CLI, Tabnine CLI, Kiro CLI, Pi, or Mistral Vibe 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, Qoder CLI, Tabnine CLI, Kiro CLI, Pi, Forge, or Mistral Vibe 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

scripts/bash/update-agent-context.sh

@@ -30,12 +30,12 @@
 #
 # 5. Multi-Agent Support
 #    - Handles agent-specific file paths and naming conventions
-#    - Supports: Claude, Gemini, Copilot, Cursor, Qwen, opencode, Codex, Windsurf, Junie, Kilo Code, Auggie CLI, Roo Code, CodeBuddy CLI, Qoder CLI, Amp, SHAI, Tabnine CLI, Kiro CLI, Mistral Vibe, Kimi Code, Pi Coding Agent, iFlow CLI, Antigravity or Generic
+#    - Supports: Claude, Gemini, Copilot, Cursor, Qwen, opencode, Codex, Windsurf, Junie, Kilo Code, Auggie CLI, Roo Code, CodeBuddy CLI, Qoder CLI, Amp, SHAI, Tabnine CLI, Kiro CLI, Mistral Vibe, Kimi Code, Pi Coding Agent, iFlow CLI, Forge, Antigravity or Generic
 #    - Can update single agents or all existing agent files
 #    - Creates default Claude file if no agent files exist
 #
 # Usage: ./update-agent-context.sh [agent_type]
-# Agent types: claude|gemini|copilot|cursor-agent|qwen|opencode|codex|windsurf|junie|kilocode|auggie|roo|codebuddy|amp|shai|tabnine|kiro-cli|agy|bob|vibe|qodercli|kimi|trae|pi|iflow|generic
+# Agent types: claude|gemini|copilot|cursor-agent|qwen|opencode|codex|windsurf|junie|kilocode|auggie|roo|codebuddy|amp|shai|tabnine|kiro-cli|agy|bob|vibe|qodercli|kimi|trae|pi|iflow|forge|generic
 # Leave empty to update all existing agent files
 
 set -e
@@ -74,7 +74,7 @@ AUGGIE_FILE="$REPO_ROOT/.augment/rules/specify-rules.md"
 ROO_FILE="$REPO_ROOT/.roo/rules/specify-rules.md"
 CODEBUDDY_FILE="$REPO_ROOT/CODEBUDDY.md"
 QODER_FILE="$REPO_ROOT/QODER.md"
-# Amp, Kiro CLI, IBM Bob, and Pi all share AGENTS.md — use AGENTS_FILE to avoid
+# Amp, Kiro CLI, IBM Bob, Pi, and Forge all share AGENTS.md — use AGENTS_FILE to avoid
 # updating the same file multiple times.
 AMP_FILE="$AGENTS_FILE"
 SHAI_FILE="$REPO_ROOT/SHAI.md"
@@ -86,6 +86,7 @@ VIBE_FILE="$REPO_ROOT/.vibe/agents/specify-agents.md"
 KIMI_FILE="$REPO_ROOT/KIMI.md"
 TRAE_FILE="$REPO_ROOT/.trae/rules/AGENTS.md"
 IFLOW_FILE="$REPO_ROOT/IFLOW.md"
+FORGE_FILE="$AGENTS_FILE"
 
 # Template file
 TEMPLATE_FILE="$REPO_ROOT/.specify/templates/agent-file-template.md"
@@ -690,12 +691,15 @@ update_specific_agent() {
         iflow)
             update_agent_file "$IFLOW_FILE" "iFlow CLI" || return 1
             ;;
+        forge)
+            update_agent_file "$AGENTS_FILE" "Forge" || return 1
+            ;;
         generic)
             log_info "Generic agent: no predefined context file. Use the agent-specific update script for your agent."
             ;;
         *)
             log_error "Unknown agent type '$agent_type'"
-            log_error "Expected: claude|gemini|copilot|cursor-agent|qwen|opencode|codex|windsurf|junie|kilocode|auggie|roo|codebuddy|amp|shai|tabnine|kiro-cli|agy|bob|vibe|qodercli|kimi|trae|pi|iflow|generic"
+            log_error "Expected: claude|gemini|copilot|cursor-agent|qwen|opencode|codex|windsurf|junie|kilocode|auggie|roo|codebuddy|amp|shai|tabnine|kiro-cli|agy|bob|vibe|qodercli|kimi|trae|pi|iflow|forge|generic"
             exit 1
             ;;
     esac
@@ -739,10 +743,7 @@ update_all_existing_agents() {
     _update_if_new "$COPILOT_FILE" "GitHub Copilot"        || _all_ok=false
     _update_if_new "$CURSOR_FILE" "Cursor IDE"             || _all_ok=false
     _update_if_new "$QWEN_FILE" "Qwen Code"                || _all_ok=false
-    _update_if_new "$AGENTS_FILE" "Codex/opencode"         || _all_ok=false
-    _update_if_new "$AMP_FILE" "Amp"                       || _all_ok=false
-    _update_if_new "$KIRO_FILE" "Kiro CLI"                 || _all_ok=false
-    _update_if_new "$BOB_FILE" "IBM Bob"                   || _all_ok=false
+    _update_if_new "$AGENTS_FILE" "Codex/opencode/Amp/Kiro/Bob/Pi/Forge" || _all_ok=false
     _update_if_new "$WINDSURF_FILE" "Windsurf"             || _all_ok=false
     _update_if_new "$JUNIE_FILE" "Junie"                || _all_ok=false
     _update_if_new "$KILOCODE_FILE" "Kilo Code"            || _all_ok=false
@@ -783,7 +784,7 @@ print_summary() {
     fi
 
     echo
-    log_info "Usage: $0 [claude|gemini|copilot|cursor-agent|qwen|opencode|codex|windsurf|junie|kilocode|auggie|roo|codebuddy|amp|shai|tabnine|kiro-cli|agy|bob|vibe|qodercli|kimi|trae|pi|iflow|generic]"
+    log_info "Usage: $0 [claude|gemini|copilot|cursor-agent|qwen|opencode|codex|windsurf|junie|kilocode|auggie|roo|codebuddy|amp|shai|tabnine|kiro-cli|agy|bob|vibe|qodercli|kimi|trae|pi|iflow|forge|generic]"
 }
 
 #==============================================================================