{
  "title": "Comma separated list",
  "human_url": "https://happytails.ai/en/text-tools/comma-separated-list/",
  "agent_url": "https://happytails.ai/agents/en/text-tools/comma-separated-list/",
  "language": "en",
  "markdown_url": "https://happytails.ai/en/text-tools/comma-separated-list.md",
  "content": "Comma separated list\nTurn nonempty lines into a comma-separated list.\nHow to use Comma separated list\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\nTurn nonempty lines into a comma-separated list. This creates a readable list, not escaped CSV. Use a CSV converter for cells containing commas.\nTry a small example\nApples\nPears\nUseful next steps\nSplit text\nSplit text at an exact separator, placing each part on a new line.\nJoin text\nJoin lines with a separator of your choice.\nAdd prefix suffix\nAdd a prefix or suffix to every line.\nRepeat text\nRepeat text with a separator between copies.",
  "content_format": "text/plain",
  "visibility": "public",
  "links": [
    {
      "name": "Split text Split text at an exact separator, placing each part on a new line.",
      "url": "https://happytails.ai/en/text-tools/split-text/"
    },
    {
      "name": "Join text Join lines with a separator of your choice.",
      "url": "https://happytails.ai/en/text-tools/join-text/"
    },
    {
      "name": "Add prefix suffix Add a prefix or suffix to every line.",
      "url": "https://happytails.ai/en/text-tools/add-prefix-suffix/"
    },
    {
      "name": "Repeat text Repeat text with a separator between copies.",
      "url": "https://happytails.ai/en/text-tools/repeat-text/"
    }
  ],
  "tool": {
    "id": "comma-separated-list",
    "category": "text-tools",
    "built": true,
    "requirements": "Lines to delimited list and reverse; configurable escaping and quoted commas.",
    "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/comma-separated-list/run",
    "api": {
      "id": "comma-separated-list",
      "name": "Comma separated list",
      "category": "text-tools",
      "description": "Turn nonempty lines into a comma-separated list.",
      "notes": "",
      "human_path": "/en/text-tools/comma-separated-list/",
      "method": "POST",
      "endpoint": "/api/v1/tools/comma-separated-list/run",
      "schema_url": "/api/v1/tools/comma-separated-list",
      "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": "# Comma separated list\n\n- Human page: https://happytails.ai/en/text-tools/comma-separated-list/\n- Markdown: https://happytails.ai/en/text-tools/comma-separated-list.md\n- Structured JSON: https://happytails.ai/agents/en/text-tools/comma-separated-list/index.json\n- Visibility: public\n\n## Tool capabilities\n\n| Property | Value |\n| --- | --- |\n| Tool ID | `comma-separated-list` |\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/comma-separated-list/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/comma-separated-list/run\nContent-Type: application/json\n```\n\n[Detailed operation reference](https://happytails.ai/en/api/tools/comma-separated-list.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 2026-09-28T18:13:27Z. This is historical evidence, not a new validation or a guarantee for every input.\n\n```json\n{\n  \"input\": \"Apples\\nPears\",\n  \"options\": {}\n}\n```\n\n```json\n{\n  \"tool\": \"comma-separated-list\",\n  \"result\": {\n    \"text\": \"Apples, Pears\",\n    \"files\": [],\n    \"name\": \"result.txt\",\n    \"mime\": \"text/plain;charset=utf-8\"\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\nLines to delimited list and reverse; configurable escaping and quoted commas.\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\": \"comma-separated-list\",\n  \"category\": \"text-tools\",\n  \"built\": true,\n  \"requirements\": \"Lines to delimited list and reverse; configurable escaping and quoted commas.\",\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/comma-separated-list/run\",\n  \"api\": {\n    \"id\": \"comma-separated-list\",\n    \"name\": \"Comma separated list\",\n    \"category\": \"text-tools\",\n    \"description\": \"Turn nonempty lines into a comma-separated list.\",\n    \"notes\": \"\",\n    \"human_path\": \"/en/text-tools/comma-separated-list/\",\n    \"method\": \"POST\",\n    \"endpoint\": \"/api/v1/tools/comma-separated-list/run\",\n    \"schema_url\": \"/api/v1/tools/comma-separated-list\",\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\nTurn nonempty lines into a comma-separated list.\n\n## How to use Comma separated list\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\nTurn nonempty lines into a comma-separated list. This creates a readable list, not escaped CSV. Use a CSV converter for cells containing commas.\n\n### Try a small example\n\n```\nApples\nPears\n```\n\n## Useful next steps\n\n- [Split text](https://happytails.ai/en/text-tools/split-text/): Split text at an exact separator, placing each part on a new line. ([Markdown](https://happytails.ai/en/text-tools/split-text.md))\n\n- [Join text](https://happytails.ai/en/text-tools/join-text/): Join lines with a separator of your choice. ([Markdown](https://happytails.ai/en/text-tools/join-text.md))\n\n- [Add prefix suffix](https://happytails.ai/en/text-tools/add-prefix-suffix/): Add a prefix or suffix to every line. ([Markdown](https://happytails.ai/en/text-tools/add-prefix-suffix.md))\n\n- [Repeat text](https://happytails.ai/en/text-tools/repeat-text/): Repeat text with a separator between copies. ([Markdown](https://happytails.ai/en/text-tools/repeat-text.md))\n"
}