Feat/add antigravity

CHANGELOG.md

@@ -5,8 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [2.11.0](https://github.com/LarsCowe/bmalph/compare/v2.10.0...v2.11.0) (2026-03-24)
+## [Unreleased]
+
+### Features
 
+* **platform:** add support for Google Antigravity (agy) agent
+
+## [2.11.0](https://github.com/LarsCowe/bmalph/compare/v2.10.0...v2.11.0) (2026-03-24)
 
 ### Features
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "bmalph",
-  "version": "2.11.0",
+  "version": "2.12.0",
   "description": "Unified AI Development Framework - BMAD phases with Ralph execution loop",
   "type": "module",
   "bin": {

ralph/drivers/antigravity.sh

@@ -0,0 +1,98 @@
+#!/bin/bash
+# Antigravity (agy) driver for Ralph
+
+driver_name() {
+    echo "antigravity"
+}
+
+driver_display_name() {
+    echo "Antigravity (agy)"
+}
+
+driver_cli_binary() {
+    echo "agy"
+}
+
+driver_min_version() {
+    echo "0.1.0"
+}
+
+driver_check_available() {
+    command -v "$(driver_cli_binary)" &>/dev/null
+}
+
+driver_valid_tools() {
+    VALID_TOOL_PATTERNS=()
+}
+
+driver_supports_tool_allowlist() {
+    return 1
+}
+
+driver_permission_denial_help() {
+    echo "  - $DRIVER_DISPLAY_NAME uses its native permission and approval model."
+    echo "  - Keep CLAUDE_PERMISSION_MODE=bypassPermissions in $RALPHRC_FILE for unattended loops."
+    echo "  - Alternatively, configure toolPermission to 'always-proceed' in settings.json."
+}
+
+driver_build_command() {
+    local prompt_file=$1
+    local loop_context=$2
+    local session_id=$3
+
+    CLAUDE_CMD_ARGS=("$(driver_cli_binary)")
+
+    if [[ ! -f "$prompt_file" ]]; then
+        echo "ERROR: Prompt file not found: $prompt_file" >&2
+        return 1
+    fi
+
+    local resolved_permission_mode="${CLAUDE_PERMISSION_MODE:-bypassPermissions}"
+    if [[ "$resolved_permission_mode" == "bypassPermissions" ]]; then
+        CLAUDE_CMD_ARGS+=("--dangerously-skip-permissions")
+    fi
+
+    if [[ "$CLAUDE_USE_CONTINUE" == "true" && -n "$session_id" ]]; then
+        CLAUDE_CMD_ARGS+=("--conversation" "$session_id")
+    fi
+
+    local prompt_content
+    prompt_content=$(cat "$prompt_file")
+    if [[ -n "$loop_context" ]]; then
+        prompt_content="$loop_context
+
+$prompt_content"
+    fi
+
+    # Using --print to run non-interactively and print the response.
+    CLAUDE_CMD_ARGS+=("--print" "$prompt_content")
+}
+
+driver_supports_sessions() {
+    return 0
+}
+
+driver_supports_live_output() {
+    return 0
+}
+
+driver_prepare_live_command() {
+    LIVE_CMD_ARGS=("${CLAUDE_CMD_ARGS[@]}")
+}
+
+driver_stream_filter() {
+    # If Antigravity doesn't output JSON, we just return empty string to pass raw stdout.
+    echo '.'
+}
+
+driver_extract_session_id_from_output() {
+    # We might need to handle conversation ID extraction later, but for now
+    # this will rely on fallback session id or just pass
+    echo ""
+    return 1
+}
+
+driver_fallback_session_id() {
+    echo ""
+    return 1
+}

src/cli.ts

@@ -65,7 +65,7 @@ program
   .option("-d, --description <desc>", "Project description")
   .option(
     "--platform <id>",
-    "Target platform (claude-code, codex, opencode, cursor, windsurf, copilot, aider)"
+    "Target platform (claude-code, codex, opencode, cursor, windsurf, copilot, aider, antigravity)"
   )
   .option("--dry-run", "Preview changes without writing files")
   .action(

src/platform/antigravity.ts

@@ -0,0 +1,31 @@
+import type { Platform } from "./types.js";
+import { buildPlatformDoctorChecks } from "./doctor-checks.js";
+
+export const antigravityPlatform: Platform = {
+  id: "antigravity",
+  displayName: "Antigravity (agy)",
+  tier: "full",
+  instructionsFile: "AGENTS.md", // Standard file used by Antigravity rules
+  commandDelivery: { kind: "skills", dir: ".agents/skills", frontmatterName: "command" }, // Since it supports bmad skills via frontmatter
+  instructionsSectionMarker: "## BMAD-METHOD Integration",
+  generateInstructionsSnippet: () => `
+## BMAD-METHOD Integration
+
+Use bmalph to navigate phases. Use the available slash commands to discover all commands.
+
+### Available Agents
+
+| Command | Agent | Role |
+|---------|-------|------|
+| \`/analyst\` | Analyst | Research, briefs, discovery |
+| \`/architect\` | Architect | Technical design, architecture |
+| \`/pm\` | Product Manager | PRDs, epics, stories |
+| \`/sm\` | Scrum Master | Sprint planning, status, coordination |
+| \`/dev\` | Developer | Implementation, coding |
+| \`/ux-designer\` | UX Designer | User experience, wireframes |
+| \`/qa\` | QA Engineer | Test automation, quality assurance |
+`,
+  getDoctorChecks() {
+    return buildPlatformDoctorChecks(this);
+  },
+};

src/platform/detect.ts

@@ -14,10 +14,11 @@ const STRONG_DETECTION_MARKERS: Array<{ platform: PlatformId; markers: string[]
   { platform: "windsurf", markers: [".windsurf"] },
   { platform: "copilot", markers: [".github/copilot-instructions.md"] },
   { platform: "aider", markers: [".aider.conf.yml"] },
+  { platform: "antigravity", markers: [".agents"] },
 ];
 
 const ROOT_INSTRUCTION_MARKERS: Array<{ marker: string; candidates: PlatformId[] }> = [
-  { marker: "AGENTS.md", candidates: ["codex", "opencode", "cursor"] },
+  { marker: "AGENTS.md", candidates: ["codex", "opencode", "cursor", "antigravity"] },
   { marker: "CLAUDE.md", candidates: ["claude-code", "cursor"] },
 ];
 

src/platform/registry.ts

@@ -6,6 +6,7 @@ import { cursorPlatform } from "./cursor.js";
 import { windsurfPlatform } from "./windsurf.js";
 import { copilotPlatform } from "./copilot.js";
 import { aiderPlatform } from "./aider.js";
+import { antigravityPlatform } from "./antigravity.js";
 
 const PLATFORMS: ReadonlyMap<PlatformId, Platform> = new Map([
   ["claude-code", claudeCodePlatform],
@@ -15,6 +16,7 @@ const PLATFORMS: ReadonlyMap<PlatformId, Platform> = new Map([
   ["windsurf", windsurfPlatform],
   ["copilot", copilotPlatform],
   ["aider", aiderPlatform],
+  ["antigravity", antigravityPlatform],
 ]);
 
 export function getPlatform(id: PlatformId): Platform {

src/platform/types.ts

@@ -14,6 +14,7 @@ export const PLATFORM_IDS = [
   "windsurf",
   "copilot",
   "aider",
+  "antigravity",
 ] as const;
 export type PlatformId = (typeof PLATFORM_IDS)[number];
 

tests/platform/registry.test.ts

@@ -31,9 +31,9 @@ describe("registry", () => {
   });
 
   describe("getAllPlatforms", () => {
-    it("returns array of 7 platforms", () => {
+    it("returns array of 8 platforms", () => {
       const platforms = getAllPlatforms();
-      expect(platforms).toHaveLength(7);
+      expect(platforms).toHaveLength(8);
     });
   });