slavonic

Look an Old Church Slavonic word up on Wiktionary and return its senses plus full declension/conjugation tables — attested content (singular, dual and plural), not invented. Any form of the word works; an inflected query is resolved to its lemma automatically via previously cached paradigms and the result notes the resolution. With search_language='eng' the query is an English word instead: the result lists its per-sense Old Church Slavonic equivalents (the translations block) plus their expanded entries. Returns Markdown plus the same result as structuredContent matching the declared outputSchema. Results are cached server-side; first-time queries reach the live upstream politely and calls are rate limited — on a rate-limit error, wait a few seconds and retry. Content is from en.wiktionary.org (CC BY-SA 4.0 — attribute and share alike if republished).

{
  "type": "object",
  "properties": {
    "query": {
      "description": "The word to look up, in the language search_language names. Church Slavonic (default): a SINGLE Old Church Slavonic word in Cyrillic, any form — an inflected form ('бога') is resolved to its lemma ('богъ') automatically via cached paradigms, and the result says so; normalized OCS spelling works best, but titlos/accents and modern-Cyrillic respellings (ы for ꙑ) are folded. English (search_language='eng'): the English word whose Old Church Slavonic equivalents you want — multiword entries like 'apple tree' work.",
      "maxLength": 80,
      "minLength": 1,
      "title": "Query",
      "type": "string"
    },
    "search_language": {
      "$ref": "#/$defs/SearchLanguage",
      "default": "chu",
      "description": "Language the query word is in: 'chu' (default) looks the Old Church Slavonic word up directly; 'eng' finds the OCS equivalents of an English word (per-sense, from Wiktionary's translation tables) and returns their full entries. Glosses are in English either way."
    },
    "include_forms": {
      "default": true,
      "description": "When true (default), each match's full declension/conjugation table is returned INLINE — usable cases/tenses (singular, dual AND plural) in ONE call, no follow-up slavonic_get_inflections. Set false for a cheap screen of which entries exist. Bounded by a per-search cap — use max_forms to adjust per call. For eng queries this governs the expanded OCS entries; the per-sense translations list itself is always returned.",
      "title": "Include Forms",
      "type": "boolean"
    },
    "max_forms": {
      "anyOf": [
        {
          "maximum": 12,
          "minimum": 0,
          "type": "integer"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "description": "Optional override for how many inflection tables to expand this call (0–12). On an uncached query each table is one politely paced upstream fetch, so high values on cold queries are slow. Omit for the server default.",
      "title": "Max Forms"
    }
  },
  "required": [
    "query"
  ],
  "$defs": {
    "SearchLanguage": {
      "description": "The query language. ``chu`` looks an Old Church Slavonic word up directly\n(any of its forms — an inflected query resolves via cached paradigms). ``eng``\nsearches in reverse: the English Wiktionary page for the query word lists\nper-sense Old Church Slavonic translations, and each distinct lemma is then\nlooked up normally.",
      "enum": [
        "chu",
        "eng"
      ],
      "title": "SearchLanguage",
      "type": "string"
    }
  },
  "title": "slavonic_searchArguments"
}

{
  "type": "object",
  "properties": {
    "query": {
      "title": "Query",
      "type": "string"
    },
    "language": {
      "$ref": "#/$defs/SearchLanguage"
    },
    "found": {
      "description": "False when nothing matched. For an eng query, True means Old Church Slavonic translations were found — entries may still be empty when none of them could be expanded (see translations).",
      "title": "Found",
      "type": "boolean"
    },
    "handles": {
      "items": {
        "$ref": "#/$defs/InflectionHandle"
      },
      "title": "Handles",
      "type": "array"
    },
    "entries": {
      "items": {
        "$ref": "#/$defs/Entry"
      },
      "title": "Entries",
      "type": "array"
    },
    "forms_truncated": {
      "default": 0,
      "description": "How many handles did NOT get an inline table because the per-search cap was reached.",
      "title": "Forms Truncated",
      "type": "integer"
    },
    "translations": {
      "description": "Populated only for eng queries (always [] for chu): the OCS terms each English sense translates to, in sense order. Entries/handles below are the expanded dictionary entries of those terms.",
      "items": {
        "$ref": "#/$defs/TranslationSense"
      },
      "title": "Translations",
      "type": "array"
    },
    "translations_truncated": {
      "default": 0,
      "description": "How many distinct translated lemmas were NOT expanded into entries because the per-search expansion cap was reached (they still appear under translations).",
      "title": "Translations Truncated",
      "type": "integer"
    },
    "search_method": {
      "default": "direct",
      "description": "How the match was found: 'direct' = the query itself matched; 'lemma_index' = an inflected form resolved via a previously cached paradigm; 'translations' = an English query resolved via Wiktionary translation tables.",
      "enum": [
        "direct",
        "lemma_index",
        "translations"
      ],
      "title": "Search Method",
      "type": "string"
    },
    "resolved_from": {
      "default": "",
      "description": "The original inflected query when resolved; else empty. chu queries only — always empty for eng results.",
      "title": "Resolved From",
      "type": "string"
    },
    "resolved_lemma": {
      "default": "",
      "description": "The lemma actually searched when resolved; else empty. chu queries only — always empty for eng results.",
      "title": "Resolved Lemma",
      "type": "string"
    },
    "source": {
      "default": "Wiktionary, the free dictionary (en.wiktionary.org), Old Church Slavonic entries. Wikimedia Foundation. Text available under CC BY-SA 4.0; attribution and share-alike required when republishing. (CC BY-SA 4.0)",
      "title": "Source",
      "type": "string"
    }
  },
  "required": [
    "query",
    "language",
    "found"
  ],
  "$defs": {
    "Entry": {
      "description": "One Old Church Slavonic entry on the page: the headword (page title) with\none part-of-speech section's senses.",
      "properties": {
        "headword": {
          "title": "Headword",
          "type": "string"
        },
        "part_of_speech": {
          "default": "",
          "title": "Part Of Speech",
          "type": "string"
        },
        "entry_id": {
          "default": "",
          "description": "Page title — feed to slavonic_get_inflections.",
          "title": "Entry Id",
          "type": "string"
        },
        "word_class": {
          "default": "",
          "description": "POS section — feed to slavonic_get_inflections.",
          "title": "Word Class",
          "type": "string"
        },
        "senses": {
          "items": {
            "$ref": "#/$defs/Sense"
          },
          "title": "Senses",
          "type": "array"
        }
      },
      "required": [
        "headword"
      ],
      "title": "Entry",
      "type": "object"
    },
    "InflectionHandle": {
      "description": "A structured anchor for fetching a full paradigm: feed ``entry_id`` (the page\ntitle) + ``word_class`` (the POS section) to ``slavonic_get_inflections`` — or ask\n``search`` to include the table inline (``forms``).",
      "properties": {
        "entry_id": {
          "description": "Wiktionary page title — the Cyrillic lemma itself.",
          "title": "Entry Id",
          "type": "string"
        },
        "word_class": {
          "description": "Part-of-speech section, e.g. 'verb', 'noun'.",
          "title": "Word Class",
          "type": "string"
        },
        "context": {
          "default": "",
          "description": "Nearby headword / hint.",
          "title": "Context",
          "type": "string"
        },
        "pos_hint": {
          "default": "",
          "description": "Part-of-speech hint.",
          "title": "Pos Hint",
          "type": "string"
        },
        "forms": {
          "anyOf": [
            {
              "discriminator": {
                "mapping": {
                  "nominal": "#/$defs/SlavonicNominalParadigm",
                  "not_found": "#/$defs/ParadigmNotFound",
                  "verbal": "#/$defs/SlavonicVerbalParadigm"
                },
                "propertyName": "category"
              },
              "oneOf": [
                {
                  "$ref": "#/$defs/SlavonicNominalParadigm"
                },
                {
                  "$ref": "#/$defs/SlavonicVerbalParadigm"
                },
                {
                  "$ref": "#/$defs/ParadigmNotFound"
                }
              ]
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "description": "The full paradigm, populated when a search is asked to include forms. None when not requested or beyond the cap.",
          "title": "Forms"
        }
      },
      "required": [
        "entry_id",
        "word_class"
      ],
      "title": "InflectionHandle",
      "type": "object"
    },
    "ParadigmNotFound": {
      "description": "No inflection table for this page/POS (no Old Church Slavonic section, no\ntable, or the page doesn't exist). ``found`` is False and there is no body.",
      "properties": {
        "category": {
          "const": "not_found",
          "default": "not_found",
          "title": "Category",
          "type": "string"
        },
        "entry_id": {
          "title": "Entry Id",
          "type": "string"
        },
        "word_class": {
          "title": "Word Class",
          "type": "string"
        },
        "found": {
          "const": false,
          "default": false,
          "title": "Found",
          "type": "boolean"
        },
        "source": {
          "default": "Wiktionary, the free dictionary (en.wiktionary.org), Old Church Slavonic entries. Wikimedia Foundation. Text available under CC BY-SA 4.0; attribution and share-alike required when republishing. (CC BY-SA 4.0)",
          "title": "Source",
          "type": "string"
        }
      },
      "required": [
        "entry_id",
        "word_class"
      ],
      "title": "ParadigmNotFound",
      "type": "object"
    },
    "SearchLanguage": {
      "description": "The query language. ``chu`` looks an Old Church Slavonic word up directly\n(any of its forms — an inflected query resolves via cached paradigms). ``eng``\nsearches in reverse: the English Wiktionary page for the query word lists\nper-sense Old Church Slavonic translations, and each distinct lemma is then\nlooked up normally.",
      "enum": [
        "chu",
        "eng"
      ],
      "title": "SearchLanguage",
      "type": "string"
    },
    "Sense": {
      "description": "One sense of an entry: the (HTML-stripped) Wiktionary definition line.",
      "properties": {
        "label": {
          "default": "",
          "title": "Label",
          "type": "string"
        },
        "gloss": {
          "title": "Gloss",
          "type": "string"
        },
        "examples": {
          "items": {
            "type": "string"
          },
          "title": "Examples",
          "type": "array"
        }
      },
      "required": [
        "gloss"
      ],
      "title": "Sense",
      "type": "object"
    },
    "SlavonicNominalParadigm": {
      "description": "Declension of a noun/adjective/pronoun/etc.: case → {singular, dual, plural}.\n\nGender-split tables (adjectives, pronouns, participles) carry the gender — and,\nfor adjectives, the short/long variant — in the key: 'nominative masculine',\n'long nominative feminine'. ``category`` discriminates this from the verbal and\nnot-found shapes — switch on it before reading the body.",
      "properties": {
        "category": {
          "const": "nominal",
          "default": "nominal",
          "title": "Category",
          "type": "string"
        },
        "entry_id": {
          "title": "Entry Id",
          "type": "string"
        },
        "word_class": {
          "title": "Word Class",
          "type": "string"
        },
        "found": {
          "const": true,
          "default": true,
          "title": "Found",
          "type": "boolean"
        },
        "cases": {
          "additionalProperties": {
            "$ref": "#/$defs/SlavonicNumberForms"
          },
          "description": "Case key (lower-case: 'nominative', 'genitive', …; gender and short/long variant prefixed when the table splits by them) → its singular/dual/plural forms, in table order.",
          "title": "Cases",
          "type": "object"
        },
        "source": {
          "default": "Wiktionary, the free dictionary (en.wiktionary.org), Old Church Slavonic entries. Wikimedia Foundation. Text available under CC BY-SA 4.0; attribution and share-alike required when republishing. (CC BY-SA 4.0)",
          "title": "Source",
          "type": "string"
        }
      },
      "required": [
        "entry_id",
        "word_class",
        "cases"
      ],
      "title": "SlavonicNominalParadigm",
      "type": "object"
    },
    "SlavonicNumberForms": {
      "description": "A declension cell: the THREE number forms of one case — Old Church Slavonic\nkeeps a full dual. Forms are verbatim normalized OCS Cyrillic; alternates stay\ncomma-separated as Wiktionary renders them. A number the table doesn't give\n(defective paradigms) is an empty string.",
      "properties": {
        "singular": {
          "default": "",
          "title": "Singular",
          "type": "string"
        },
        "dual": {
          "default": "",
          "title": "Dual",
          "type": "string"
        },
        "plural": {
          "default": "",
          "title": "Plural",
          "type": "string"
        }
      },
      "title": "SlavonicNumberForms",
      "type": "object"
    },
    "SlavonicVerbalParadigm": {
      "description": "Conjugation of a verb, grouped the way Wiktionary's table is: finite cells\nkeyed by tense/mood → person-and-number → form, plus the non-finite sections\n(infinitive, supine, l-participle and the other participles).",
      "properties": {
        "category": {
          "const": "verbal",
          "default": "verbal",
          "title": "Category",
          "type": "string"
        },
        "entry_id": {
          "title": "Entry Id",
          "type": "string"
        },
        "word_class": {
          "title": "Word Class",
          "type": "string"
        },
        "found": {
          "const": true,
          "default": true,
          "title": "Found",
          "type": "boolean"
        },
        "finite": {
          "additionalProperties": {
            "additionalProperties": {
              "type": "string"
            },
            "type": "object"
          },
          "description": "Tense/mood (lower-case, e.g. 'present', 'imperfect', 'aorist', 'imperative') → person and number ('first singular' … 'third dual' … 'third plural') → the form. Periphrastic rows (perfect, pluperfect, future) appear under the single key 'all'. Alternates are comma-separated; an em-dash cell (no such form) is omitted.",
          "title": "Finite",
          "type": "object"
        },
        "nonfinite": {
          "additionalProperties": {
            "additionalProperties": {
              "type": "string"
            },
            "type": "object"
          },
          "description": "Non-finite section ('infinitive', 'supine', 'l-participle') → label ('form' for the single-form sections; 'singular masculine' etc. for the participle) → the form.",
          "title": "Nonfinite",
          "type": "object"
        },
        "source": {
          "default": "Wiktionary, the free dictionary (en.wiktionary.org), Old Church Slavonic entries. Wikimedia Foundation. Text available under CC BY-SA 4.0; attribution and share-alike required when republishing. (CC BY-SA 4.0)",
          "title": "Source",
          "type": "string"
        }
      },
      "required": [
        "entry_id",
        "word_class",
        "finite",
        "nonfinite"
      ],
      "title": "SlavonicVerbalParadigm",
      "type": "object"
    },
    "TranslationSense": {
      "description": "One English sense (a translations table) and the OCS terms it offers.",
      "properties": {
        "sense": {
          "description": "The sense gloss the source table carries.",
          "title": "Sense",
          "type": "string"
        },
        "terms": {
          "items": {
            "$ref": "#/$defs/TranslationTerm"
          },
          "title": "Terms",
          "type": "array"
        }
      },
      "required": [
        "sense"
      ],
      "title": "TranslationSense",
      "type": "object"
    },
    "TranslationTerm": {
      "description": "One Old Church Slavonic word a translations table offers for an English\nsense. ``word`` is the Wiktionary page title in Cyrillic (what an ``eng``\nsearch re-searches and what ``slavonic_get_inflections`` needs); only the Cyrillic\nscript row is read — the parallel Glagolitic spelling is the same lemma on a\nsoft-redirect page, so surfacing it would only duplicate the term.",
      "properties": {
        "word": {
          "description": "Wiktionary page title — the Cyrillic lemma itself.",
          "title": "Word",
          "type": "string"
        },
        "display": {
          "default": "",
          "description": "Rendered form when it differs from the title.",
          "title": "Display",
          "type": "string"
        },
        "transliteration": {
          "default": "",
          "description": "Scientific romanization as Wiktionary prints it, e.g. 'voda'.",
          "title": "Transliteration",
          "type": "string"
        },
        "gender": {
          "default": "",
          "description": "Grammatical gender as marked, e.g. 'f'.",
          "title": "Gender",
          "type": "string"
        },
        "qualifier": {
          "default": "",
          "description": "Usage qualifier as marked, e.g. 'poetic'; else empty.",
          "title": "Qualifier",
          "type": "string"
        }
      },
      "required": [
        "word"
      ],
      "title": "TranslationTerm",
      "type": "object"
    }
  },
  "description": "The result of a dictionary search.",
  "title": "SearchResult"
}

Fetch the full declension (nominals) or conjugation (verbs) table for a lemma identified by a search result's inflection handle (entry_id + word_class). Use this only when a search ran without inline forms or left a match un-expanded — a default search already returns each match's table inline. Returns Markdown plus the table as structuredContent with the shape {"result": <paradigm>} per the declared outputSchema — switch on result.category ('nominal' | 'verbal' | 'not_found') before reading the body. Content from en.wiktionary.org (CC BY-SA 4.0).

{
  "type": "object",
  "properties": {
    "entry_id": {
      "description": "The Wiktionary page title (the Cyrillic lemma) from a search result's inflection handle, e.g. 'богъ', 'глаголати'.",
      "maxLength": 80,
      "minLength": 1,
      "title": "Entry Id",
      "type": "string"
    },
    "word_class": {
      "description": "The part-of-speech section from a search result's inflection handle, e.g. 'verb', 'noun', 'adjective'.",
      "maxLength": 24,
      "minLength": 1,
      "pattern": "^[a-z ]+$",
      "title": "Word Class",
      "type": "string"
    }
  },
  "required": [
    "entry_id",
    "word_class"
  ],
  "title": "slavonic_get_inflectionsArguments"
}

{
  "type": "object",
  "properties": {
    "result": {
      "discriminator": {
        "mapping": {
          "nominal": "#/$defs/SlavonicNominalParadigm",
          "not_found": "#/$defs/ParadigmNotFound",
          "verbal": "#/$defs/SlavonicVerbalParadigm"
        },
        "propertyName": "category"
      },
      "oneOf": [
        {
          "$ref": "#/$defs/SlavonicNominalParadigm"
        },
        {
          "$ref": "#/$defs/SlavonicVerbalParadigm"
        },
        {
          "$ref": "#/$defs/ParadigmNotFound"
        }
      ],
      "title": "Result"
    }
  },
  "required": [
    "result"
  ],
  "$defs": {
    "ParadigmNotFound": {
      "description": "No inflection table for this page/POS (no Old Church Slavonic section, no\ntable, or the page doesn't exist). ``found`` is False and there is no body.",
      "properties": {
        "category": {
          "const": "not_found",
          "default": "not_found",
          "title": "Category",
          "type": "string"
        },
        "entry_id": {
          "title": "Entry Id",
          "type": "string"
        },
        "word_class": {
          "title": "Word Class",
          "type": "string"
        },
        "found": {
          "const": false,
          "default": false,
          "title": "Found",
          "type": "boolean"
        },
        "source": {
          "default": "Wiktionary, the free dictionary (en.wiktionary.org), Old Church Slavonic entries. Wikimedia Foundation. Text available under CC BY-SA 4.0; attribution and share-alike required when republishing. (CC BY-SA 4.0)",
          "title": "Source",
          "type": "string"
        }
      },
      "required": [
        "entry_id",
        "word_class"
      ],
      "title": "ParadigmNotFound",
      "type": "object"
    },
    "SlavonicNominalParadigm": {
      "description": "Declension of a noun/adjective/pronoun/etc.: case → {singular, dual, plural}.\n\nGender-split tables (adjectives, pronouns, participles) carry the gender — and,\nfor adjectives, the short/long variant — in the key: 'nominative masculine',\n'long nominative feminine'. ``category`` discriminates this from the verbal and\nnot-found shapes — switch on it before reading the body.",
      "properties": {
        "category": {
          "const": "nominal",
          "default": "nominal",
          "title": "Category",
          "type": "string"
        },
        "entry_id": {
          "title": "Entry Id",
          "type": "string"
        },
        "word_class": {
          "title": "Word Class",
          "type": "string"
        },
        "found": {
          "const": true,
          "default": true,
          "title": "Found",
          "type": "boolean"
        },
        "cases": {
          "additionalProperties": {
            "$ref": "#/$defs/SlavonicNumberForms"
          },
          "description": "Case key (lower-case: 'nominative', 'genitive', …; gender and short/long variant prefixed when the table splits by them) → its singular/dual/plural forms, in table order.",
          "title": "Cases",
          "type": "object"
        },
        "source": {
          "default": "Wiktionary, the free dictionary (en.wiktionary.org), Old Church Slavonic entries. Wikimedia Foundation. Text available under CC BY-SA 4.0; attribution and share-alike required when republishing. (CC BY-SA 4.0)",
          "title": "Source",
          "type": "string"
        }
      },
      "required": [
        "entry_id",
        "word_class",
        "cases"
      ],
      "title": "SlavonicNominalParadigm",
      "type": "object"
    },
    "SlavonicNumberForms": {
      "description": "A declension cell: the THREE number forms of one case — Old Church Slavonic\nkeeps a full dual. Forms are verbatim normalized OCS Cyrillic; alternates stay\ncomma-separated as Wiktionary renders them. A number the table doesn't give\n(defective paradigms) is an empty string.",
      "properties": {
        "singular": {
          "default": "",
          "title": "Singular",
          "type": "string"
        },
        "dual": {
          "default": "",
          "title": "Dual",
          "type": "string"
        },
        "plural": {
          "default": "",
          "title": "Plural",
          "type": "string"
        }
      },
      "title": "SlavonicNumberForms",
      "type": "object"
    },
    "SlavonicVerbalParadigm": {
      "description": "Conjugation of a verb, grouped the way Wiktionary's table is: finite cells\nkeyed by tense/mood → person-and-number → form, plus the non-finite sections\n(infinitive, supine, l-participle and the other participles).",
      "properties": {
        "category": {
          "const": "verbal",
          "default": "verbal",
          "title": "Category",
          "type": "string"
        },
        "entry_id": {
          "title": "Entry Id",
          "type": "string"
        },
        "word_class": {
          "title": "Word Class",
          "type": "string"
        },
        "found": {
          "const": true,
          "default": true,
          "title": "Found",
          "type": "boolean"
        },
        "finite": {
          "additionalProperties": {
            "additionalProperties": {
              "type": "string"
            },
            "type": "object"
          },
          "description": "Tense/mood (lower-case, e.g. 'present', 'imperfect', 'aorist', 'imperative') → person and number ('first singular' … 'third dual' … 'third plural') → the form. Periphrastic rows (perfect, pluperfect, future) appear under the single key 'all'. Alternates are comma-separated; an em-dash cell (no such form) is omitted.",
          "title": "Finite",
          "type": "object"
        },
        "nonfinite": {
          "additionalProperties": {
            "additionalProperties": {
              "type": "string"
            },
            "type": "object"
          },
          "description": "Non-finite section ('infinitive', 'supine', 'l-participle') → label ('form' for the single-form sections; 'singular masculine' etc. for the participle) → the form.",
          "title": "Nonfinite",
          "type": "object"
        },
        "source": {
          "default": "Wiktionary, the free dictionary (en.wiktionary.org), Old Church Slavonic entries. Wikimedia Foundation. Text available under CC BY-SA 4.0; attribution and share-alike required when republishing. (CC BY-SA 4.0)",
          "title": "Source",
          "type": "string"
        }
      },
      "required": [
        "entry_id",
        "word_class",
        "finite",
        "nonfinite"
      ],
      "title": "SlavonicVerbalParadigm",
      "type": "object"
    }
  },
  "title": "slavonic_get_inflectionsOutput"
}

Render Church Slavonic — Cyrillic or Glagolitic — in the scientific Latin transliteration Wiktionary uses (богъ → bogŭ, ⰱⱁⰳⱏ → bogŭ). Liturgical reading marks (titlos, accents) are dropped and late Church Slavonic spellings folded, so copied liturgical text works as-is. Returns Markdown plus the transliterated output as structuredContent matching the declared outputSchema. Pure local transform: no dictionary lookup and no network.

{
  "type": "object",
  "properties": {
    "text": {
      "description": "Church Slavonic text to transliterate — Cyrillic and/or Glagolitic, one word or whole lines. Liturgical reading marks (titlos, accents, breathings) are dropped and late Church Slavonic spellings folded, so text copied from a liturgical source or a lyrics sheet works as-is.",
      "maxLength": 4000,
      "minLength": 1,
      "title": "Text",
      "type": "string"
    }
  },
  "required": [
    "text"
  ],
  "title": "slavonic_transliterateArguments"
}

{
  "type": "object",
  "properties": {
    "text": {
      "description": "The scientific transliteration.",
      "title": "Text",
      "type": "string"
    }
  },
  "required": [
    "text"
  ],
  "description": "The MCP-facing transliteration payload: the Latin output only. ``original``\nis deliberately absent — like the Markdown render (see\n:func:`~livonian.languages.slavonic.render.transliteration_to_markdown`), the\nMCP result reaches an LLM's context, so the raw caller text must not be echoed\nthrough it. The JSON API's :class:`Transliteration` keeps the echo for\nprogrammatic callers.",
  "title": "TransliteratedText"
}

Find the real Church Slavonic word(s) whose scientific-Latin transliteration matches this input — the inverse direction of `slavonic_transliterate`. Because transliterate is lossy, this is a LOOKUP against the words already in the dictionary cache: attested spellings (normalized OCS Cyrillic) come back as source=dictionary. If none match, a single best-effort reconstruction is returned (source=reconstruction, approximate=true) — a guess in normalized OCS Cyrillic, not attested, with no Glagolitic or liturgical marks. Coverage grows as words are cached, so an identical query may return a reconstruction now and a dictionary hit later.

{
  "type": "object",
  "properties": {
    "text": {
      "description": "Scientific-Latin transliteration of Church Slavonic to resolve back to real orthography. Returns the attested dictionary spelling(s) whose transliteration matches (source=dictionary, exact) — several may match one ambiguous key. On a miss, a single best-effort reconstruction in normalized OCS Cyrillic (source=reconstruction, approximate=true), which is a guess: transliterate is lossy, so case, digraph boundaries (д+з vs ѕ) and the оу/ѿ ligatures cannot be recovered, and no Glagolitic or liturgical marks are produced.",
      "maxLength": 4000,
      "minLength": 1,
      "title": "Text",
      "type": "string"
    }
  },
  "required": [
    "text"
  ],
  "title": "slavonic_detransliterateArguments"
}

{
  "type": "object",
  "properties": {
    "candidates": {
      "items": {
        "$ref": "#/$defs/Candidate"
      },
      "title": "Candidates",
      "type": "array"
    },
    "approximate": {
      "title": "Approximate",
      "type": "boolean"
    }
  },
  "required": [
    "candidates",
    "approximate"
  ],
  "$defs": {
    "Candidate": {
      "description": "One candidate spelling from a reverse-lookup surface (deromanize /\ndetransliterate, or Interslavic transliterate).",
      "properties": {
        "word": {
          "description": "A real orthographic word (source=dictionary) or the best-effort reconstruction (source=reconstruction).",
          "title": "Word",
          "type": "string"
        },
        "source": {
          "description": "dictionary = an ATTESTED spelling recalled from the dictionary index (exact, no guessing); reconstruction = a best-effort algorithmic guess, returned only when no attested word matched (never emitted by Interslavic transliterate, which returns empty on a miss instead).",
          "enum": [
            "dictionary",
            "reconstruction"
          ],
          "title": "Source",
          "type": "string"
        },
        "kind": {
          "anyOf": [
            {
              "enum": [
                "lemma",
                "form"
              ],
              "type": "string"
            },
            {
              "type": "null"
            }
          ],
          "default": null,
          "description": "For a lossy-family dictionary candidate, whether the word is a headword (lemma) or an inflected form. None for a reconstruction, and always None for Interslavic transliterate (which does not distinguish lemma from form).",
          "title": "Kind"
        }
      },
      "required": [
        "word",
        "source"
      ],
      "title": "Candidate",
      "type": "object"
    }
  },
  "description": "The MCP-facing payload: candidates only. ``original`` is deliberately absent —\nthe MCP result reaches an LLM's context, so the raw caller text must not be echoed\n(mirrors ``RomanizedText``/``TransliteratedText``).",
  "title": "DeromanizedText"
}