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postext.dev

postext.dev

live Unverified (seed import) Developer Tools 61 tools imperative implementation

Try the Postext typesetting engine live: edit markdown, manage figures and tables, tune Knuth-Plass justification, and export print-ready PDF and EPUB — in the browser.

First seen 2026-11-05 · Last seen 2026-11-05 · Source: webmcp.com

Answer 8 · Act 48 · Transact 5 · Score: Not yet scored

Tool inspector

sandbox_save_book

transact imperative May require confirmation

Make a project — the reader's own book, kept in this browser — or tend the list of books: new_blank starts an empty book; copy_current keeps the book on screen as a new project (how a sample becomes the reader's own); duplicate copies a sample or a project without opening the original (a sample the reader edited is copied with their edits, unless from says original); rename changes a project's name or description (on a book in several languages the name is the book's in every language, unless thisLanguageOnly); add_language adds a language to a project: the edition on screen is copied into a new edition whose document language is the one in the language field, and that edition is opened, still in the old language's words until translated; set_cover gives a project a cover picture and remove_cover takes it away; hide_sample and show_sample take a sample off the list and put it back. A new book is opened at once.

Page: /en/sandbox

Input schema

PropertyTypeRequiredDescription
action string yes —
kind string no duplicate: what the id names.
id string no duplicate, rename, hide_sample, show_sample: the book. add_language, set_cover, remove_cover: the project (the one on screen when left out).
thisLanguageOnly boolean no rename a project in several languages: give the name and description to the language on screen only; the others keep the title they show.
language string no add_language: the tag of the new language (en, es, fr, zh-Hant, ar…), one the book does not have. duplicate a sample: the language to copy. Left out, the one a click on the sample would open: the one on screen, else the interface language, else the language the reader last edited.
from string no duplicate a sample: copy the reader's edited version in that language (edited; refused when there is none) or the sample as it ships (original). Left out, the edited version when there is one, as the Books panel does.
name string no new_blank, copy_current, rename: the name.
description string no rename: the description (empty clears it).
file object no set_cover: the picture (PNG, JPEG, WebP, GIF or SVG): where to fetch it (url) or its bytes (base64).
Raw JSON schema
{
  "type": "object",
  "properties": {
    "action": {
      "type": "string",
      "enum": [
        "new_blank",
        "copy_current",
        "duplicate",
        "rename",
        "add_language",
        "set_cover",
        "remove_cover",
        "hide_sample",
        "show_sample"
      ]
    },
    "kind": {
      "type": "string",
      "enum": [
        "sample",
        "project"
      ],
      "description": "duplicate: what the id names."
    },
    "id": {
      "type": "string",
      "description": "duplicate, rename, hide_sample, show_sample: the book. add_language, set_cover, remove_cover: the project (the one on screen when left out)."
    },
    "thisLanguageOnly": {
      "type": "boolean",
      "description": "rename a project in several languages: give the name and description to the language on screen only; the others keep the title they show."
    },
    "language": {
      "type": "string",
      "description": "add_language: the tag of the new language (en, es, fr, zh-Hant, ar…), one the book does not have. duplicate a sample: the language to copy. Left out, the one a click on the sample would open: the one on screen, else the interface language, else the language the reader last edited."
    },
    "from": {
      "type": "string",
      "enum": [
        "edited",
        "original"
      ],
      "description": "duplicate a sample: copy the reader's edited version in that language (edited; refused when there is none) or the sample as it ships (original). Left out, the edited version when there is one, as the Books panel does."
    },
    "name": {
      "type": "string",
      "description": "new_blank, copy_current, rename: the name."
    },
    "description": {
      "type": "string",
      "description": "rename: the description (empty clears it)."
    },
    "file": {
      "type": "object",
      "description": "set_cover: the picture (PNG, JPEG, WebP, GIF or SVG): where to fetch it (url) or its bytes (base64).",
      "properties": {
        "url": {
          "type": "string",
          "description": "An http(s) or data: URL the page can fetch."
        },
        "base64": {
          "type": "string",
          "description": "The bytes, base64-encoded."
        },
        "mimeType": {
          "type": "string",
          "description": "Its media type. Read from the response or the file name when left out."
        },
        "fileName": {
          "type": "string",
          "description": "Its file name, with its extension."
        }
      },
      "additionalProperties": false
    }
  },
  "required": [
    "action"
  ],
  "additionalProperties": false
}

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