mcp-xpath
XPath MCP 服务器
MCP 服务器用于对 XML 内容执行 XPath 查询。
工具
xpath使用 XPath 表达式查询 XML 内容
输入:
xml(字符串):要查询的 XML 内容query(字符串):要执行的 XPath 查询mimeType(可选,字符串):MIME 类型(例如 text/xml、application/xml、text/html、application/xhtml+xml)
返回:XPath 查询的结果作为字符串
xpathwithurl从 URL 获取内容并使用 XPath 表达式进行查询
输入:
url(字符串): 获取 XML/HTML 内容的 URLquery(字符串):要执行的 XPath 查询mimeType(可选,字符串):MIME 类型(例如 text/xml、application/xml、text/html、application/xhtml+xml)
返回:XPath 查询的结果作为字符串
Related MCP server: Cleyrop MCP
安装
通过 Smithery 安装
要通过Smithery自动为 Claude Desktop 安装 mcp-xpath:
npx -y @smithery/cli install @thirdstrandstudio/mcp-xpath --client claude# Install dependencies
npm install
# Build the package
npm run build设置
与 Claude Desktop 一起使用
将以下内容添加到您的claude_desktop_config.json中:
NPX
{
"mcpServers": {
"xpath": {
"command": "npx",
"args": [
"@thirdstrandstudio/mcp-xpath"
]
}
}
}直接使用 Node.js
{
"mcpServers": {
"xpath": {
"command": "node",
"args": [
"/path/to/mcp-xpath/dist/index.js"
]
}
}
}将/path/to/mcp-xpath替换为您的存储库的实际路径。
示例
查询 XML 内容
// Select all <item> elements from XML
const result = await callTool("xpath", {
xml: "<root><item>value1</item><item>value2</item></root>",
query: "//item/text()",
mimeType: "text/xml"
});查询 HTML 内容
// Get all links from HTML
const result = await callTool("xpath", {
xml: "<html><body><a href='link1.html'>Link 1</a><a href='link2.html'>Link 2</a></body></html>",
query: "//a/@href",
mimeType: "text/html"
});查询 URL 内容
// Get all links from a webpage
const result = await callTool("xpathwithurl", {
url: "https://example.com",
query: "//a/@href",
mimeType: "text/html"
});发展
# Install dependencies
npm install
# Start the server in development mode
npm start执照
此 MCP 服务器采用 MIT 许可证。这意味着您可以自由使用、修改和分发该软件,但须遵守 MIT 许可证的条款和条件。更多详情,请参阅项目仓库中的 LICENSE 文件。
Available Tools
2 toolsxpathC
Select query XML content using XPath
| Name | Required | Description | Default |
|---|---|---|---|
| mimeType | No | The MIME type (e.g. text/xml, application/xml, text/html, application/xhtml+xml) | text/html |
| query | Yes | The XPath query to execute | |
| xml | Yes | The XML content to query |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the action ('Select query') but doesn't describe what the tool returns (e.g., nodes, values, errors), performance characteristics, or any constraints like input size limits. This leaves significant gaps in understanding the tool's behavior beyond basic functionality.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single, efficient sentence: 'Select query XML content using XPath'. It's front-loaded with the core purpose, has zero waste, and is appropriately sized for a straightforward tool. Every word earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (XML querying with XPath), no annotations, and no output schema, the description is incomplete. It doesn't explain what the tool returns (e.g., extracted data, error handling), which is critical for an agent to use it correctly. The description should compensate for the lack of structured output information but fails to do so.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents all parameters (xml, query, mimeType) with clear descriptions. The description adds no additional meaning beyond what the schema provides, such as examples or usage notes for parameters. Baseline 3 is appropriate as the schema does the heavy lifting.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Select query XML content using XPath'. It specifies the verb ('Select query') and resource ('XML content'), though it doesn't explicitly distinguish it from its sibling 'xpathwithurl', which likely handles URLs instead of direct XML input. The purpose is clear but lacks sibling differentiation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It doesn't mention the sibling 'xpathwithurl' or any other tools, nor does it specify prerequisites or exclusions. Usage is implied from the purpose but lacks explicit context or alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
xpathwithurlC
Fetch content from a URL and select query it using XPath
| Name | Required | Description | Default |
|---|---|---|---|
| mimeType | No | The MIME type (e.g. text/xml, application/xml, text/html, application/xhtml+xml) | text/html |
| query | Yes | The XPath query to execute | |
| url | Yes | The URL to fetch XML/HTML content from |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations are provided, so the description carries the full burden of behavioral disclosure. It mentions fetching content and querying with XPath, but doesn't disclose important behavioral traits such as error handling, network timeouts, authentication needs, rate limits, or what happens with invalid URLs or queries. For a tool that performs network operations and data processing, this is a significant gap.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise and front-loaded, consisting of a single sentence: 'Fetch content from a URL and select query it using XPath'. Every word contributes directly to explaining the tool's purpose, with no unnecessary information or redundancy. It efficiently communicates the core functionality.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's complexity (network fetching and XPath querying), lack of annotations, and no output schema, the description is incomplete. It doesn't explain what the tool returns (e.g., query results, errors), behavioral aspects like performance or limitations, or how to interpret results. For a tool with no structured safety or output information, the description should provide more context to be fully helpful.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has 100% description coverage, clearly documenting all three parameters (url, query, mimeType) with their purposes and types. The description adds minimal value beyond the schema, as it only implies the parameters indirectly ('Fetch content from a URL' hints at 'url', 'select query it using XPath' hints at 'query'). It doesn't provide additional context like examples or constraints, so the baseline score of 3 is appropriate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Fetch content from a URL and select query it using XPath'. It specifies the verb ('fetch', 'select query'), resource ('content from a URL'), and method ('using XPath'), making it easy to understand what the tool does. However, it doesn't explicitly differentiate from its sibling tool 'xpath', which might have overlapping functionality.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus alternatives. It doesn't mention the sibling tool 'xpath' or any other tools, nor does it specify scenarios where this tool is preferred or should be avoided. The description only states what the tool does, not when to use it.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
2 tool updates
v1.0.0- First observed
xpath - First observed
xpathwithurl
TDQS
Scored across 2 tools
The two tools have clearly distinct purposes: 'xpath' operates on provided XML content, while 'xpathwithurl' fetches content from a URL before applying XPath. There is no overlap or ambiguity between them.
Both tool names follow a consistent pattern: they start with 'xpath' and use descriptive suffixes ('withurl') without mixing conventions. The naming is straightforward and predictable.
With only 2 tools, the server feels thin for an XPath utility domain, as it lacks operations like validating XPath expressions, handling different input formats, or providing transformation capabilities. However, it covers basic use cases.
The tools cover core XPath querying on local and remote content, but there are notable gaps: no support for XML validation, error handling, or output formatting. The surface is functional but minimal for a full-featured XPath toolset.
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