{
  "title": "Paragraph counter",
  "human_url": "https://happytails.ai/en/text-tools/paragraph-counter/",
  "agent_url": "https://happytails.ai/agents/en/text-tools/paragraph-counter/",
  "language": "en",
  "markdown_url": "https://happytails.ai/en/text-tools/paragraph-counter.md",
  "content": "Paragraph counter\nCount paragraphs separated by blank lines.\nHow to use Paragraph counter\nEnter your text in the input field.\nThe result updates as you type. Adjust the available settings if needed.\nReview the result, then use Copy result or a download link when available.\nWhat to expect\nCount paragraphs separated by blank lines. A single line break stays within the same paragraph. Empty input contains zero paragraphs.\nTry a small example\nFirst paragraph.\nSecond paragraph.\nUseful next steps\nCharacter counter\nCount visible characters, words, lines and UTF-8 bytes.\nWord counter\nCount words, characters and lines as you type.\nReading time\nEstimate reading time at your chosen pace.\nSpeaking time\nEstimate speaking time at your chosen pace.",
  "content_format": "text/plain",
  "visibility": "public",
  "links": [
    {
      "name": "Character counter Count visible characters, words, lines and UTF-8 bytes.",
      "url": "https://happytails.ai/en/text-tools/character-counter/"
    },
    {
      "name": "Word counter Count words, characters and lines as you type.",
      "url": "https://happytails.ai/en/text-tools/word-counter/"
    },
    {
      "name": "Reading time Estimate reading time at your chosen pace.",
      "url": "https://happytails.ai/en/text-tools/reading-time/"
    },
    {
      "name": "Speaking time Estimate speaking time at your chosen pace.",
      "url": "https://happytails.ai/en/text-tools/speaking-time/"
    }
  ],
  "tool": {
    "id": "paragraph-counter",
    "category": "text-tools",
    "built": true,
    "requirements": "Blank-line-delimited paragraphs versus hard line breaks; preview selected rule.",
    "implementation": {
      "fields": [],
      "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/paragraph-counter/run",
    "api": {
      "id": "paragraph-counter",
      "name": "Paragraph counter",
      "category": "text-tools",
      "description": "Count paragraphs separated by blank lines.",
      "notes": "",
      "human_path": "/en/text-tools/paragraph-counter/",
      "method": "POST",
      "endpoint": "/api/v1/tools/paragraph-counter/run",
      "schema_url": "/api/v1/tools/paragraph-counter",
      "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": {}
          }
        }
      },
      "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"
    }
  },
  "markdown": "# Paragraph counter\n\n- Human page: https://happytails.ai/en/text-tools/paragraph-counter/\n- Markdown: https://happytails.ai/en/text-tools/paragraph-counter.md\n- Structured JSON: https://happytails.ai/agents/en/text-tools/paragraph-counter/index.json\n- Visibility: public\n\n## Tool capabilities\n\n| Property | Value |\n| --- | --- |\n| Tool ID | `paragraph-counter` |\n| Category | text-tools |\n| Implementation | Registered implementation. Registration alone is not a production-quality guarantee. |\n| Browser execution | Automatic updates after valid input or file selection. |\n| Browser processing | Browser; see tool notes for network behavior. |\n| HTTP API | /api/v1/tools/paragraph-counter/run |\n| Browser-agent interface | run_current_tool |\n\n### Inputs and settings\n\nText input: Your text.\n\nExample or placeholder shown in the interface (not a validated fixture):\n\n```text\nHello world!\n```\n\nChange the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.\n\nNo additional settings are declared for this tool.\n\n### HTTP contract\n\nAPI calls process supplied data on the server. The website origin is `https://happytails.ai`. Server API hosting is not connected on the public website yet. Use your local server origin to test these requests.\n\n```http\nPOST https://happytails.ai/api/v1/tools/paragraph-counter/run\nContent-Type: application/json\n```\n\n[Detailed operation reference](https://happytails.ai/en/api/tools/paragraph-counter.md) · [Shared API guide](https://happytails.ai/en/api.md)\n\n#### Limits\n\n| Limit | Value |\n| --- | --- |\n| request_bytes | 8388608 |\n| input_characters | 1000000 |\n| files_bytes | 5242880 |\n| max_files | 0 |\n| timeout_seconds | 12 |\n\n#### Complete input schema\n\n```json\n{\n  \"type\": \"object\",\n  \"additionalProperties\": false,\n  \"properties\": {\n    \"input\": {\n      \"type\": \"string\",\n      \"maxLength\": 1000000,\n      \"default\": \"\",\n      \"description\": \"Plain text input. File tools use files instead unless otherwise documented.\"\n    },\n    \"options\": {\n      \"type\": \"object\",\n      \"additionalProperties\": false,\n      \"properties\": {}\n    }\n  }\n}\n```\n\n#### Complete output schema\n\n```json\n{\n  \"type\": \"object\",\n  \"required\": [\n    \"tool\",\n    \"result\"\n  ],\n  \"properties\": {\n    \"tool\": {\n      \"type\": \"string\"\n    },\n    \"result\": {\n      \"type\": \"object\",\n      \"required\": [\n        \"text\",\n        \"files\"\n      ],\n      \"properties\": {\n        \"text\": {\n          \"type\": [\n            \"string\",\n            \"null\"\n          ]\n        },\n        \"data\": {\n          \"description\": \"Parsed JSON when the textual result is JSON.\"\n        },\n        \"name\": {\n          \"type\": \"string\"\n        },\n        \"mime\": {\n          \"type\": \"string\"\n        },\n        \"files\": {\n          \"type\": \"array\",\n          \"items\": {\n            \"type\": \"object\",\n            \"required\": [\n              \"name\",\n              \"mime\",\n              \"bytes\",\n              \"base64\"\n            ],\n            \"properties\": {\n              \"name\": {\n                \"type\": \"string\"\n              },\n              \"mime\": {\n                \"type\": \"string\"\n              },\n              \"bytes\": {\n                \"type\": \"integer\"\n              },\n              \"base64\": {\n                \"type\": \"string\",\n                \"contentEncoding\": \"base64\"\n              }\n            }\n          }\n        }\n      }\n    }\n  }\n}\n```\n\n#### Recorded request and response\n\nSaved fixture from 2026-09-28T18:13:31Z. This is historical evidence, not a new validation or a guarantee for every input.\n\n```json\n{\n  \"input\": \"First paragraph.\\n\\nSecond paragraph.\",\n  \"options\": {}\n}\n```\n\n```json\n{\n  \"tool\": \"paragraph-counter\",\n  \"result\": {\n    \"text\": \"{\\n  \\\"paragraphs\\\": 2\\n}\",\n    \"files\": [],\n    \"name\": \"result.json\",\n    \"mime\": \"application/json\",\n    \"data\": {\n      \"paragraphs\": 2\n    }\n  }\n}\n```\n\n#### Error and retry handling\n\nFailures return a non-200 status and `error.code` plus `error.message`. Correct invalid input before retrying; retry server-busy responses with bounded backoff. Returned files contain Base64 data, not persistent download URLs. Decode and inspect the output before treating conversion as successful. See the shared API guide for the complete status and timeout rules.\n\n### Browser-agent workflow\n\n1. Open the human page in a browser that supports WebMCP.\n2. Discover the interface exposed by that page; use its actual schema.\n3. Select files on the page first when the tool requires files.\n4. Call `run_current_tool` with valid input and settings.\n5. Inspect the returned result or error and the displayed output. Retrieve files from the displayed download links.\n\nCalls do not automatically copy or download results. Browser permissions still apply. Interface availability alone is not proof of successful execution.\n\n### Planning specification\n\nBlank-line-delimited paragraphs versus hard line breaks; preview selected rule.\n\nThis describes intended requirements. Use the implementation notes, interface schema and observed output to determine current support.\n\n### Complete machine-readable capability record\n\n```json\n{\n  \"id\": \"paragraph-counter\",\n  \"category\": \"text-tools\",\n  \"built\": true,\n  \"requirements\": \"Blank-line-delimited paragraphs versus hard line breaks; preview selected rule.\",\n  \"implementation\": {\n    \"fields\": [],\n    \"experience\": {\n      \"automatic\": true,\n      \"single\": false,\n      \"label\": \"Your text\",\n      \"placeholder\": \"Hello world!\",\n      \"help\": \"Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.\",\n      \"action\": null\n    },\n    \"mode\": \"automatic\",\n    \"interactive\": false\n  },\n  \"execution\": \"POST /api/v1/tools/paragraph-counter/run\",\n  \"api\": {\n    \"id\": \"paragraph-counter\",\n    \"name\": \"Paragraph counter\",\n    \"category\": \"text-tools\",\n    \"description\": \"Count paragraphs separated by blank lines.\",\n    \"notes\": \"\",\n    \"human_path\": \"/en/text-tools/paragraph-counter/\",\n    \"method\": \"POST\",\n    \"endpoint\": \"/api/v1/tools/paragraph-counter/run\",\n    \"schema_url\": \"/api/v1/tools/paragraph-counter\",\n    \"input_schema\": {\n      \"type\": \"object\",\n      \"additionalProperties\": false,\n      \"properties\": {\n        \"input\": {\n          \"type\": \"string\",\n          \"maxLength\": 1000000,\n          \"default\": \"\",\n          \"description\": \"Plain text input. File tools use files instead unless otherwise documented.\"\n        },\n        \"options\": {\n          \"type\": \"object\",\n          \"additionalProperties\": false,\n          \"properties\": {}\n        }\n      }\n    },\n    \"output_schema\": {\n      \"type\": \"object\",\n      \"required\": [\n        \"tool\",\n        \"result\"\n      ],\n      \"properties\": {\n        \"tool\": {\n          \"type\": \"string\"\n        },\n        \"result\": {\n          \"type\": \"object\",\n          \"required\": [\n            \"text\",\n            \"files\"\n          ],\n          \"properties\": {\n            \"text\": {\n              \"type\": [\n                \"string\",\n                \"null\"\n              ]\n            },\n            \"data\": {\n              \"description\": \"Parsed JSON when the textual result is JSON.\"\n            },\n            \"name\": {\n              \"type\": \"string\"\n            },\n            \"mime\": {\n              \"type\": \"string\"\n            },\n            \"files\": {\n              \"type\": \"array\",\n              \"items\": {\n                \"type\": \"object\",\n                \"required\": [\n                  \"name\",\n                  \"mime\",\n                  \"bytes\",\n                  \"base64\"\n                ],\n                \"properties\": {\n                  \"name\": {\n                    \"type\": \"string\"\n                  },\n                  \"mime\": {\n                    \"type\": \"string\"\n                  },\n                  \"bytes\": {\n                    \"type\": \"integer\"\n                  },\n                  \"base64\": {\n                    \"type\": \"string\",\n                    \"contentEncoding\": \"base64\"\n                  }\n                }\n              }\n            }\n          }\n        }\n      }\n    },\n    \"processing\": \"Server; same transformation code as browser tools\",\n    \"limits\": {\n      \"request_bytes\": 8388608,\n      \"input_characters\": 1000000,\n      \"files_bytes\": 5242880,\n      \"max_files\": 0,\n      \"timeout_seconds\": 12\n    }\n  },\n  \"agent_processing\": \"Server; same transformation code as browser tools\",\n  \"browser_agent\": {\n    \"supported\": true,\n    \"name\": \"run_current_tool\",\n    \"discovery\": \"WebMCP on the human page in a supporting browser\",\n    \"verification\": \"See audit/API-AUDIT.md; availability is not verification\"\n  }\n}\n```\n\n## Page guide\n\nCount paragraphs separated by blank lines.\n\n## How to use Paragraph counter\n\n1. Enter your text in the input field.\n2. The result updates as you type. Adjust the available settings if needed.\n3. Review the result, then use Copy result or a download link when available.\n\n## What to expect\n\nCount paragraphs separated by blank lines. A single line break stays within the same paragraph. Empty input contains zero paragraphs.\n\n### Try a small example\n\n```\nFirst paragraph.\n\nSecond paragraph.\n```\n\n## Useful next steps\n\n- [Character counter](https://happytails.ai/en/text-tools/character-counter/): Count visible characters, words, lines and UTF-8 bytes. ([Markdown](https://happytails.ai/en/text-tools/character-counter.md))\n\n- [Word counter](https://happytails.ai/en/text-tools/word-counter/): Count words, characters and lines as you type. ([Markdown](https://happytails.ai/en/text-tools/word-counter.md))\n\n- [Reading time](https://happytails.ai/en/text-tools/reading-time/): Estimate reading time at your chosen pace. ([Markdown](https://happytails.ai/en/text-tools/reading-time.md))\n\n- [Speaking time](https://happytails.ai/en/text-tools/speaking-time/): Estimate speaking time at your chosen pace. ([Markdown](https://happytails.ai/en/text-tools/speaking-time.md))\n"
}