feat(mcp): plugin discovery for zero-downtime MCP bridge registration (GH#4462)

autobot-backend/api/browser_mcp.py

@@ -63,8 +63,17 @@
 from autobot_shared.logging_manager import get_logger
 from autobot_shared.time_utils import now_utc
 from constants.network_constants import NetworkConstants
+from services.mcp_bridge_manifest import MCPBridgeManifest
 from type_defs.common import Metadata
 
+MANIFEST = MCPBridgeManifest(
+    name="browser_mcp",
+    version="1.0.0",
+    description="Browser Automation - Secure Web Interaction via Playwright",
+    features=["navigate", "click", "fill", "screenshot", "evaluate", "wait", "scraping"],
+    endpoint="/api/browser/mcp/tools",
+)
+
 logger = get_logger(__name__)
 router = APIRouter(
     tags=["browser_mcp", "mcp"],

autobot-backend/api/database_mcp.py

@@ -36,6 +36,7 @@
 from autobot_shared.error_boundaries import ErrorCategory, with_error_handling
 from autobot_shared.logging_manager import get_logger
 from autobot_shared.time_utils import now_utc
+from services.mcp_bridge_manifest import MCPBridgeManifest
 from type_defs.common import Metadata
 
 from .schemas_code import (
@@ -53,6 +54,14 @@
     TableListRequest,
 )
 
+MANIFEST = MCPBridgeManifest(
+    name="database_mcp",
+    version="1.0.0",
+    description="Database Operations - SQLite Query and Management",
+    features=["query", "execute", "schema", "tables", "statistics", "sql_injection_prevention"],
+    endpoint="/api/database/mcp/tools",
+)
+
 logger = get_logger(__name__)
 router = APIRouter(
     tags=["database_mcp", "mcp"],

autobot-backend/api/filesystem_mcp.py

@@ -34,9 +34,18 @@
 
 from autobot_shared.logging_manager import get_logger
 from autobot_shared.ssot_config import config
+from services.mcp_bridge_manifest import MCPBridgeManifest
 from type_defs.common import Metadata
 from utils.io_executor import run_in_file_executor
 
+MANIFEST = MCPBridgeManifest(
+    name="filesystem_mcp",
+    version="1.0.0",
+    description="Filesystem Operations - Secure File & Directory Access",
+    features=["read_files", "write_files", "directory_management", "search", "metadata"],
+    endpoint="/api/filesystem/mcp/tools",
+)
+
 # Issue #514: Per-file locking to prevent concurrent write corruption
 _file_locks: Dict[str, asyncio.Lock] = {}
 _file_locks_lock = asyncio.Lock()

autobot-backend/api/git_mcp.py

@@ -50,9 +50,18 @@
 from autobot_shared.security.path_validator import validate_path
 from autobot_shared.ssot_config import PROJECT_ROOT
 from autobot_shared.time_utils import now_utc
+from services.mcp_bridge_manifest import MCPBridgeManifest
 from services.tool_output_filter import get_tool_output_filter
 from type_defs.common import Metadata
 
+MANIFEST = MCPBridgeManifest(
+    name="git_mcp",
+    version="1.0.0",
+    description="Git Operations - Version Control Repository Management",
+    features=["status", "log", "diff", "branch", "blame", "show", "repository_whitelist"],
+    endpoint="/api/git/mcp/tools",
+)
+
 logger = get_logger(__name__)
 
 # Default repository path from SSOT (Issue #610 - config consolidation)

autobot-backend/api/http_client_mcp.py

@@ -47,11 +47,20 @@
 from autobot_shared.logging_manager import get_logger
 from autobot_shared.time_utils import now_utc
 from constants.network_constants import NetworkConstants
+from services.mcp_bridge_manifest import MCPBridgeManifest
 from type_defs.common import JSONObject, Metadata
 from utils.template_loader import load_mcp_tools, mcp_tools_exist
 
 from .schemas_code import HTTPClientMCPStatusResponse, HTTPRequestResultResponse
 
+MANIFEST = MCPBridgeManifest(
+    name="http_client_mcp",
+    version="1.0.0",
+    description="HTTP Client - Secure REST API Interactions",
+    features=["get", "post", "put", "patch", "delete", "head", "rate_limiting"],
+    endpoint="/api/http_client/mcp/tools",
+)
+
 logger = get_logger(__name__)
 router = APIRouter(
     tags=["http_client_mcp", "mcp"],

autobot-backend/api/knowledge_mcp.py

@@ -38,6 +38,15 @@
     McpToolsResponse,
     McpVectorSimilarityResponse,
 )
+from services.mcp_bridge_manifest import MCPBridgeManifest
+
+MANIFEST = MCPBridgeManifest(
+    name="knowledge_mcp",
+    version="1.0.0",
+    description="Knowledge Base Operations (LlamaIndex + Redis Vectors)",
+    features=["search", "add_documents", "vector_similarity", "statistics"],
+    endpoint="/api/knowledge/mcp/tools",
+)
 from knowledge_base import KnowledgeBase
 from type_defs.common import Metadata
 from utils.service_registry import get_service_url