list_var
Lists key column names in adata.var for single-cell RNA sequencing analysis, enabling users to identify required inputs for other SCMCP tools.
Instructions
list key columns in adata.var. it should be called for checking when other tools need var key column names input
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Implementation Reference
- src/scmcp/tool/util.py:72-74 (handler)The core handler function for the 'list_var' tool. It takes an AnnData object and returns the list of column names in adata.var.
def list_var(adata): return list(adata.var.columns) - src/scmcp/schema/util.py:37-39 (schema)Pydantic model used as the input schema for the 'list_var' tool. Being empty (pass), it indicates no input parameters are required.
class ListVarModel(JSONParsingModel): """ListVarModel""" pass - src/scmcp/tool/util.py:21-25 (registration)Definition and registration of the MCP Tool object named 'list_var', linking the handler via schema.
list_var_tool = types.Tool( name="list_var", description="list key columns in adata.var. it should be called for checking when other tools need var key column names input", inputSchema=ListVarModel.model_json_schema(), ) - src/scmcp/tool/util.py:98-104 (registration)'list_var_tool' is registered in the util_tools dictionary, which is exposed to the MCP server for listing and calling.
util_tools = { "mark_var": mark_var_tool, "list_var": list_var_tool, "list_obs": list_obs_tool, "check_gene": check_gene_tool, "merge_adata": merge_adata_tool, } - src/scmcp/server.py:73-74 (registration)Dispatch logic in the MCP server's call_tool handler that routes 'list_var' calls to run_util_func when name is in util_tools.
elif name in util_tools.keys(): res = run_util_func(ads, name, arguments)