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Fix #1506: Update tool filtering documentation from _meta to meta (#1511)

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Marsley 2025-08-15 10:46:05 -04:00 • committed by GitHub
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12
docs/clients/tools.mdx
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@ -26,8 +26,8 @@ async with client:
if tool.inputSchema:
print(f"Parameters: {tool.inputSchema}")
# Access tags and other metadata
if hasattr(tool, '_meta') and tool._meta:
fastmcp_meta = tool._meta.get('_fastmcp', {})
if hasattr(tool, 'meta') and tool.meta:
fastmcp_meta = tool.meta.get('_fastmcp', {})
print(f"Tags: {fastmcp_meta.get('tags', [])}")
```
@ -44,16 +44,16 @@ async with client:
# Filter tools by tag
analysis_tools = [
tool for tool in tools
if hasattr(tool, '_meta') and tool._meta and
tool._meta.get('_fastmcp', {}) and
'analysis' in tool._meta.get('_fastmcp', {}).get('tags', [])
if hasattr(tool, 'meta') and tool.meta and
tool.meta.get('_fastmcp', {}) and
'analysis' in tool.meta.get('_fastmcp', {}).get('tags', [])
]
print(f"Found {len(analysis_tools)} analysis tools")
```
<Note>
The `_meta` field is part of the standard MCP specification. FastMCP servers include tags and other metadata within a `_fastmcp` namespace (e.g., `_meta._fastmcp.tags`) to avoid conflicts with user-defined metadata. This behavior can be controlled with the server's `include_fastmcp_meta` setting - when disabled, the `_fastmcp` namespace won't be included. Other MCP server implementations may not provide this metadata structure.
The `meta` field is part of the standard MCP specification. FastMCP servers include tags and other metadata within a `_fastmcp` namespace (e.g., `meta._fastmcp.tags`) to avoid conflicts with user-defined metadata. This behavior can be controlled with the server's `include_fastmcp_meta` setting - when disabled, the `_fastmcp` namespace won't be included. Other MCP server implementations may not provide this metadata structure.
</Note>
## Executing Tools