Filter lines | agent view
The same page content and links, with explicit tool capabilities. Tools marked with an API can run directly through HTTP. Other tools require the browser interface or are not connected yet.
Tool capabilities
{
"id": "filter-lines",
"category": "text-tools",
"built": true,
"requirements": "Include/exclude substring or regex matches; preserve original order.",
"implementation": {
"fields": [
{
"key": "find",
"label": "Contains",
"value": "",
"type": "text"
},
{
"key": "action",
"label": "Action",
"value": "Keep matching",
"type": "select",
"values": [
"Keep matching",
"Remove matching"
]
}
],
"experience": {
"automatic": true,
"single": false,
"label": "Your text",
"placeholder": "Hello world!",
"help": "Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.",
"action": null
},
"mode": "automatic",
"interactive": false
},
"execution": "POST /api/v1/tools/filter-lines/run",
"api": {
"id": "filter-lines",
"name": "Filter lines",
"category": "text-tools",
"description": "Keep or remove lines containing a phrase.",
"notes": "",
"human_path": "/en/text-tools/filter-lines/",
"method": "POST",
"endpoint": "/api/v1/tools/filter-lines/run",
"schema_url": "/api/v1/tools/filter-lines",
"input_schema": {
"type": "object",
"additionalProperties": false,
"properties": {
"input": {
"type": "string",
"maxLength": 1000000,
"default": "",
"description": "Plain text input. File tools use files instead unless otherwise documented."
},
"options": {
"type": "object",
"additionalProperties": false,
"properties": {
"find": {
"type": "string",
"description": "Contains",
"default": ""
},
"action": {
"type": "string",
"description": "Action",
"default": "Keep matching",
"enum": [
"Keep matching",
"Remove matching"
]
}
}
}
}
},
"output_schema": {
"type": "object",
"required": [
"tool",
"result"
],
"properties": {
"tool": {
"type": "string"
},
"result": {
"type": "object",
"required": [
"text",
"files"
],
"properties": {
"text": {
"type": [
"string",
"null"
]
},
"data": {
"description": "Parsed JSON when the textual result is JSON."
},
"name": {
"type": "string"
},
"mime": {
"type": "string"
},
"files": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"mime",
"bytes",
"base64"
],
"properties": {
"name": {
"type": "string"
},
"mime": {
"type": "string"
},
"bytes": {
"type": "integer"
},
"base64": {
"type": "string",
"contentEncoding": "base64"
}
}
}
}
}
}
}
},
"processing": "Server; same transformation code as browser tools",
"limits": {
"request_bytes": 8388608,
"input_characters": 1000000,
"files_bytes": 5242880,
"max_files": 0,
"timeout_seconds": 12
}
},
"agent_processing": "Server; same transformation code as browser tools",
"browser_agent": {
"supported": true,
"name": "run_current_tool",
"discovery": "WebMCP on the human page in a supporting browser",
"verification": "See audit/API-AUDIT.md; availability is not verification"
}
}Page guide
Keep or remove lines containing a phrase.
How to use Filter lines
- Enter your text in the input field.
- The result updates as you type. Adjust the available settings if needed.
- Review the result, then use Copy result or a download link when available.
What to expect
Keep or remove lines containing a phrase. Matching is literal and case-sensitive. Regular expressions are not supported.
Try a small example
red apple green pear