MCP Registry Bridge CLI

CLI information for the MCP registry bridge adapter

MCP Registry Bridge CLI

The Registry Bridge is an internal adapter that connects praisonaiagents.tools to the MCP server. While it doesn’t have dedicated CLI commands, its effects are visible through other CLI commands.

Viewing Bridged Tools

When the bridge is enabled, bridged tools appear in tool listings with the configured namespace prefix (default: praisonai.agents.).

List All Tools Including Bridged

# List all tools (includes bridged tools if available)
praisonai mcp list-tools

Output with bridge enabled:

Available MCP Tools (75 of 75):

  • praisonai.workflow.run
    Execute a PraisonAI workflow

  • praisonai.agents.web.search
    Search the web (bridged from praisonaiagents)

  • praisonai.agents.memory.store
    Store data in memory (bridged from praisonaiagents)
  ...

Filter Bridged Tools

# Search for bridged tools by namespace
praisonai mcp tools search "praisonai.agents" --json

Check Tool Origin

# Get info on a bridged tool
praisonai mcp tools info praisonai.agents.web.search

Output:

Tool: praisonai.agents.web.search

Description: PraisonAI Agents tool: web.search

Annotations:
  • readOnlyHint: True
  • destructiveHint: False
  • idempotentHint: False
  • openWorldHint: True
  • category: web

Bridge Status via Doctor

The doctor command shows bridge status:

praisonai mcp doctor

Output:

MCP Server Health Check
=======================

✓ Core server: OK
✓ Tool registry: 50 tools registered
✓ Resource registry: 5 resources registered
✓ Prompt registry: 3 prompts registered

Bridge Status:
  • praisonaiagents available: Yes
  • Bridged tools: 25
  • Namespace prefix: praisonai.agents.

Programmatic Bridge Control

While there’s no direct CLI for bridge control, you can use Python:

# Check bridge availability
python3 -c "
from praisonai.mcp_server.adapters.tools_bridge import is_bridge_available
print('Bridge available:', is_bridge_available())
"

# List bridged tools
python3 -c "
from praisonai.mcp_server.adapters.tools_bridge import (
    is_bridge_enabled,
    list_bridged_tools,
)
if is_bridge_enabled():
    for tool in list_bridged_tools():
        print(tool)
else:
    print('Bridge not enabled')
"

Server with Bridge

When starting the MCP server, bridged tools are automatically registered if praisonaiagents is installed:

# Start server (bridge auto-enabled if available)
praisonai mcp serve

# Output includes bridge status
# [INFO] Registered 50 built-in tools
# [INFO] Bridge enabled: 25 tools from praisonaiagents
# [INFO] MCP server started on stdio

Identifying Bridged Tools

Bridged tools can be identified by:

1. Namespace prefix: Default praisonai.agents.
2. Description format: “PraisonAI Agents tool: ”
3. Inferred annotations: Based on tool name patterns

Example: Categorize Tools

#!/bin/bash
# Categorize tools by origin

echo "=== Built-in Tools ==="
praisonai mcp tools search --json | \
  jq -r '.tools[] | select(.name | startswith("praisonai.agents") | not) | .name'

echo ""
echo "=== Bridged Tools ==="
praisonai mcp tools search "praisonai.agents" --json | \
  jq -r '.tools[].name'

Troubleshooting

Bridge Not Available

# Check if praisonaiagents is installed
python3 -c "import praisonaiagents; print('OK')" 2>/dev/null || echo "Not installed"

# Install if needed
pip install praisonaiagents

Bridged Tools Not Appearing

# Verify bridge status
python3 -c "
from praisonai.mcp_server.adapters.tools_bridge import (
    is_bridge_available,
    is_bridge_enabled,
    get_bridged_tool_count,
)
print('Available:', is_bridge_available())
print('Enabled:', is_bridge_enabled())
print('Tool count:', get_bridged_tool_count())
"

Tool Loading Errors

Bridged tools are loaded lazily. Errors appear on first use:

# Test a bridged tool
praisonai mcp tools schema praisonai.agents.web.search

# If the underlying module fails to load, you'll see:
# Error: Tool praisonai.agents.web.search failed to load: ...

Performance Notes

Aspect	Impact
Server startup	Minimal (metadata only)
Tool listing	No impact (lazy loading)
First tool call	Module import time
Subsequent calls	No overhead

See Also

• MCP Registry Bridge Module - Code-based bridge usage
• MCP Tool Search CLI - Search for bridged tools
• MCP Server CLI - Server commands