Skip to content

search_fields

Metadata

Search for fields in an assembly by name pattern. This tool reads the Field metadata table directly using dnfile — no ilspycmd required. Results include type information, visibility modifiers, and literal values for constants.

Parameters

Parameter	Type	Required	Default	Description
`assembly_path`	`string`	Yes	—	Full path to the .NET assembly (.dll or .exe)
`pattern`	`string`	Yes	—	Search pattern to match against field names
`type_filter`	`string \| null`	No	`null`	Only search fields in types containing this string
`namespace_filter`	`string \| null`	No	`null`	Only search in namespaces containing this string
`public_only`	`bool`	No	`false`	Only return public fields
`constants_only`	`bool`	No	`false`	Only return constant (literal) fields
`case_sensitive`	`bool`	No	`false`	Whether pattern matching is case-sensitive
`use_regex`	`bool`	No	`false`	Treat pattern as a regular expression

Example

MCP JSON
Python

{
  "tool": "search_fields",
  "arguments": {
    "assembly_path": "/path/to/MyApp.dll",
    "pattern": "Key",
    "constants_only": true
  }
}

result = await client.call_tool("search_fields", {
    "assembly_path": "/path/to/MyApp.dll",
    "pattern": "Key",
    "constants_only": True,
})

Response

Fields grouped by declaring type, each showing modifiers (public, static, const) and field name. Results support pagination via max_results and offset parameters.

search_methods — find methods by name pattern
search_strings — search string literals in the #US heap
get_metadata_summary — assembly-level statistics