{
  "title": "Final grade",
  "human_url": "https://happytails.ai/en/education-tools/final-grade/",
  "agent_url": "https://happytails.ai/agents/en/education-tools/final-grade/",
  "language": "en",
  "markdown_url": "https://happytails.ai/en/education-tools/final-grade.md",
  "content": "Final grade\nFind the final-exam score needed to reach a target course grade.\nHow to use Final grade\nEnter the values you want to calculate and choose the relevant units or settings.\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\nFind the final-exam score needed to reach a target course grade. Enter your current grade, target grade, and the final exam’s percentage weight. A result above 100% means the target requires more than full marks under these assumptions.\nUseful next steps\nGrade calculator\nCalculate a weighted average from scores and their weights.\nGpa calculator\nCalculate a weighted GPA from grade points and course credits.",
  "content_format": "text/plain",
  "visibility": "public",
  "links": [
    {
      "name": "Grade calculator Calculate a weighted average from scores and their weights.",
      "url": "https://happytails.ai/en/education-tools/grade-calculator/"
    },
    {
      "name": "Gpa calculator Calculate a weighted GPA from grade points and course credits.",
      "url": "https://happytails.ai/en/education-tools/gpa-calculator/"
    }
  ],
  "tool": {
    "id": "final-grade",
    "category": "education-tools",
    "built": true,
    "requirements": "Required final-exam score from weights; show impossible targets without clamping.",
    "implementation": {
      "fields": [
        {
          "key": "current",
          "label": "Current grade (%)",
          "value": 80,
          "type": "number"
        },
        {
          "key": "target",
          "label": "Target grade (%)",
          "value": 85,
          "type": "number"
        },
        {
          "key": "weight",
          "label": "Final exam weight (%)",
          "value": 30,
          "type": "number"
        }
      ],
      "input": false,
      "note": "",
      "live": true,
      "presentation": "metrics",
      "experience": {
        "automatic": true,
        "single": false,
        "label": "Your text",
        "placeholder": "Type or paste your input…",
        "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/final-grade/run",
    "api": {
      "id": "final-grade",
      "name": "Final grade",
      "category": "education-tools",
      "description": "Find the final-exam score needed to reach a target course grade.",
      "notes": "",
      "human_path": "/en/education-tools/final-grade/",
      "method": "POST",
      "endpoint": "/api/v1/tools/final-grade/run",
      "schema_url": "/api/v1/tools/final-grade",
      "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": {
              "current": {
                "type": "number",
                "description": "Current grade (%)",
                "default": 80.0
              },
              "target": {
                "type": "number",
                "description": "Target grade (%)",
                "default": 85.0
              },
              "weight": {
                "type": "number",
                "description": "Final exam weight (%)",
                "default": 30.0
              }
            }
          }
        }
      },
      "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": "# Final grade\n\n- Human page: https://happytails.ai/en/education-tools/final-grade/\n- Markdown: https://happytails.ai/en/education-tools/final-grade.md\n- Structured JSON: https://happytails.ai/agents/en/education-tools/final-grade/index.json\n- Visibility: public\n\n## Tool capabilities\n\n| Property | Value |\n| --- | --- |\n| Tool ID | `final-grade` |\n| Category | education-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/final-grade/run |\n| Browser-agent interface | run_current_tool |\n\n### Inputs and settings\n\nNo free-text input is required. Use the file inputs and/or settings below.\n\n| Setting | Meaning | Control type | Default | Constraints |\n| --- | --- | --- | --- | --- |\n| `current` | Current grade (%) | number | 80 |  |\n| `target` | Target grade (%) | number | 85 |  |\n| `weight` | Final exam weight (%) | number | 30 |  |\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/final-grade/run\nContent-Type: application/json\n```\n\n[Detailed operation reference](https://happytails.ai/en/api/tools/final-grade.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        \"current\": {\n          \"type\": \"number\",\n          \"description\": \"Current grade (%)\",\n          \"default\": 80.0\n        },\n        \"target\": {\n          \"type\": \"number\",\n          \"description\": \"Target grade (%)\",\n          \"default\": 85.0\n        },\n        \"weight\": {\n          \"type\": \"number\",\n          \"description\": \"Final exam weight (%)\",\n          \"default\": 30.0\n        }\n      }\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#### 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\nRequired final-exam score from weights; show impossible targets without clamping.\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\": \"final-grade\",\n  \"category\": \"education-tools\",\n  \"built\": true,\n  \"requirements\": \"Required final-exam score from weights; show impossible targets without clamping.\",\n  \"implementation\": {\n    \"fields\": [\n      {\n        \"key\": \"current\",\n        \"label\": \"Current grade (%)\",\n        \"value\": 80,\n        \"type\": \"number\"\n      },\n      {\n        \"key\": \"target\",\n        \"label\": \"Target grade (%)\",\n        \"value\": 85,\n        \"type\": \"number\"\n      },\n      {\n        \"key\": \"weight\",\n        \"label\": \"Final exam weight (%)\",\n        \"value\": 30,\n        \"type\": \"number\"\n      }\n    ],\n    \"input\": false,\n    \"note\": \"\",\n    \"live\": true,\n    \"presentation\": \"metrics\",\n    \"experience\": {\n      \"automatic\": true,\n      \"single\": false,\n      \"label\": \"Your text\",\n      \"placeholder\": \"Type or paste your input…\",\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/final-grade/run\",\n  \"api\": {\n    \"id\": \"final-grade\",\n    \"name\": \"Final grade\",\n    \"category\": \"education-tools\",\n    \"description\": \"Find the final-exam score needed to reach a target course grade.\",\n    \"notes\": \"\",\n    \"human_path\": \"/en/education-tools/final-grade/\",\n    \"method\": \"POST\",\n    \"endpoint\": \"/api/v1/tools/final-grade/run\",\n    \"schema_url\": \"/api/v1/tools/final-grade\",\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            \"current\": {\n              \"type\": \"number\",\n              \"description\": \"Current grade (%)\",\n              \"default\": 80.0\n            },\n            \"target\": {\n              \"type\": \"number\",\n              \"description\": \"Target grade (%)\",\n              \"default\": 85.0\n            },\n            \"weight\": {\n              \"type\": \"number\",\n              \"description\": \"Final exam weight (%)\",\n              \"default\": 30.0\n            }\n          }\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\nFind the final-exam score needed to reach a target course grade.\n\n## How to use Final grade\n\n1. Enter the values you want to calculate and choose the relevant units or settings.\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\nFind the final-exam score needed to reach a target course grade. Enter your current grade, target grade, and the final exam’s percentage weight. A result above 100% means the target requires more than full marks under these assumptions.\n\n## Useful next steps\n\n- [Grade calculator](https://happytails.ai/en/education-tools/grade-calculator/): Calculate a weighted average from scores and their weights. ([Markdown](https://happytails.ai/en/education-tools/grade-calculator.md))\n\n- [Gpa calculator](https://happytails.ai/en/education-tools/gpa-calculator/): Calculate a weighted GPA from grade points and course credits. ([Markdown](https://happytails.ai/en/education-tools/gpa-calculator.md))\n"
}