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Search Austrian Case Law

ris_search_case_law
Read-onlyIdempotent

Search Austrian case law (Judikatur) in ONE court or tribunal per call — court is required: vfgh (Constitutional Court), vwgh (Supreme Administrative Court), justiz (ordinary courts incl. OGH, selected decisions), bvwg (federal administrative), lvwg (state administrative), dsk (data protection authority), normenliste (VwGH norm index), dok, pvak, gbk, verg, upts (party transparency), and the historical uvs, asylgh, ubas, umse, bks. Cross-court research is one call per court (calls are cheap); historical bodies are closed windows with successors — codes, windows, and Geschäftszahl examples: ris_list_reference topic courts. Filter by full-text query, cited norm ("DSG §1", "DSGVO Art32" — the highest-value filter), exact case_number (Geschäftszahl), decision date range, decision_type (headnote vs full text), decision_kind, or the court-conditional filters: issuing_body (dsk/dok/pvak/verg), court_name/legal_area/subject_area (justiz), state (lvwg/uvs), party (upts), commission/senate/discrimination_ground (gbk), subject_law (bks), collection_number (vfgh/vwgh/uvs). For a known Geschäftszahl, ECLI, or VfSlg/VwSlg cite, ris_lookup_citation resolves it directly.

Input Schema

NameRequiredDescriptionDefault
normNoCited-provision filter (Norm) — "DSG §1", "DSGVO Art32", "GewO 1994 §129", matching the format returned in norms_cited. The highest-value case-law filter. Omit to leave unfiltered; a blank value is rejected.
pageNo1-based result page. Default 1.
courtYesWhich court/tribunal application to search — one per call. Codes, coverage windows, and successor mapping: ris_list_reference topic courts.
partyNoPolitical party the decision concerns (upts only). Documented values: ÖVP, SPÖ, FPÖ, KPÖ, BZÖ, Team Stronach — the filter is full-text, and further party names appear in live data (e.g. "Wandel"). Omit to leave unfiltered; a blank value is rejected.
queryNoFull-text search over decisions (Suchworte). Boolean UND/ODER/NICHT or AND/OR/NOT, quoted phrases, trailing-only * wildcard. Omit to leave unfiltered; a blank value is rejected.
stateNoWhich of the nine state administrative courts/senates to search (lvwg and uvs only).
senateNoCommission senate (gbk only).
sort_byNoSort column. Default: upstream order. Not available for court: normenliste, which indexes laws rather than decisions.
page_sizeNoDocuments per page, 1–100 (default 20). Served as a page of 10 (1–10) or 20 (11–100), with a notice when that differs. For more results, keep the size and raise page.
commissionNoEqual-treatment commission (gbk only): federal (Bundes-Gleichbehandlungskommission) or general (Gleichbehandlungskommission).
court_nameNoFilter within the ordinary courts (justiz only) — "OGH", "OLG Wien", "LG Linz". Omit to leave unfiltered; a blank value is rejected.
decided_toNoLatest decision date (YYYY-MM-DD).
legal_areaNoLegal area (Rechtsgebiet, justiz only): civil (Zivilrecht) or criminal (Strafrecht).
case_numberNoExact Geschäftszahl — returns that decision’s documents. Formats differ per court (examples: ris_list_reference topic courts). Not available for normenliste. Omit to leave unfiltered; a blank value is rejected.
subject_lawNoMedia statute the case concerns (Bereich, bks only) — e.g. "ORF-Gesetz", "Privatradiogesetz". Omit to leave unfiltered; a blank value is rejected.
decided_fromNoEarliest decision date (YYYY-MM-DD). Not available for normenliste.
issuing_bodyNoDeciding body (EntscheidendeBehoerde) — dsk, dok, pvak, and verg only. dsk: Datenschutzbehoerde (2014+), Datenschutzkommission (up to 2013), or ParlamentarischesDatenschutzkomitee (2025+); pvak: Personalvertretungsaufsichtsbehoerde (2014+) or PersonalvertretungsAufsichtskommission (up to 2013) — dsk and pvak take only these values, in any letter case. dok and verg take the body name as free text: ris_list_reference topic issuing_bodies. Omit to leave unfiltered; a blank value is rejected.
subject_areaNoSubject-area taxonomy filter (Fachgebiet, justiz only) — 39 exact German values like "Datenschutzrecht", validated locally: ris_list_reference topic justiz_subject_areas. The corpus carries no tagged documents yet (every value returns 0 hits, verified 2026-07-05) — filter with query or norm instead until RIS populates the tags. Omit to leave unfiltered; a blank value is rejected.
changed_sinceNoCoarse recency filter — decisions changed in RIS within the interval. For exact windows use ris_track_changes.
decision_kindNoDecision kind (Entscheidungsart) — per-court value sets, validated locally: ris_list_reference topic decision_kinds. No such parameter exists for normenliste, dok, pvak, umse, bks, or upts. For justiz the four documented values are not yet populated in the corpus (every value returns 0 hits, verified 2026-07-05) — filter justiz with query or norm instead. Omit to leave unfiltered; a blank value is rejected.
decision_typeNoSearch headnotes (Rechtssätze), full decision texts (Entscheidungstexte), or both (all, the default). Not available for gbk, upts, or normenliste.all
sort_directionNoSort direction; applies with sort_by.
collection_numberNoOfficial collection number (Sammlungsnummer). vfgh, vwgh, and uvs only, and the accepted form differs: vfgh and uvs store the bare number and match it dotted or undotted ("19632", "19.632"), while vwgh stores the full labelled undotted cite — pass "VwSlg 18000 A/2010", or the space-anchored prefix "VwSlg 18000 *" when the part letter or year is unknown. A bare or dotted number matches nothing under vwgh. Omit to leave unfiltered; a blank value is rejected.
discrimination_groundNoDiscrimination ground (gbk only): Alter (age), EthnischeZugehoerigkeit (ethnic origin), Geschlecht (gender/sex), Mehrfachdiskriminierung (multiple grounds), Religion (religion), SexuelleOrientierung (sexual orientation), Weltanschauung (worldview/belief). Upstream German enum values, sent verbatim.

Output Schema

NameRequiredDescriptionDefault
pageNo1-based page number RIS served.
errorNoPresent when the call failed. Absent on success.
noticeNoThe served page size when it differs from page_size, then zero-hit guidance — the likely cause and the concrete next call.
resultsNoMatching documents for the requested page — decisions, or indexed laws under court normenliste. Totals and paging in enrichment.
pageSizeNoPage size RIS applied.
truncatedNoPresent and true when more pages exist beyond this one — raise page to continue.
totalCountNoTotal matching documents across all pages.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed6 schema fields changed
    • changedInput schema / properties / page_size / description
      Previous value: -"Documents per page: 10 or 20 (default 20). For more results, keep the size and raise page."New value: +"Documents per page, 1–100 (default 20). Served as a page of 10 (1–10) or 20 (11–100), with a notice when that differs. For more results, keep the size and raise page."
    • removedInput schema / properties / page_size / enum
      Removed value: -[
      -  10,
      -  20
      -]
    • addedInput schema / properties / page_size / maximum
      Added value: +100
    • addedInput schema / properties / page_size / minimum
      Added value: +1
    • changedInput schema / properties / page_size / type
      Previous value: -"number"New value: +"integer"
    • changedOutput schema / properties / notice / description
      Previous value: -"Zero-hit guidance — names the likely cause and the concrete next call."New value: +"The served page size when it differs from page_size, then zero-hit guidance — the likely cause and the concrete next call."
  2. Changed3 schema fields changed
    • changedInput schema / properties / issuing_body / description
      Previous value: -"Deciding body (EntscheidendeBehoerde) — dsk, dok, pvak, and verg only. dsk: Datenschutzbehoerde (2014+) or Datenschutzkommission (up to 2013). Full value lists: ris_list_reference topic issuing_bodies. Omit to leave unfiltered; a blank value is rejected."New value: +"Deciding body (EntscheidendeBehoerde) — dsk, dok, pvak, and verg only. dsk: Datenschutzbehoerde (2014+), Datenschutzkommission (up to 2013), or ParlamentarischesDatenschutzkomitee (2025+); pvak: Personalvertretungsaufsichtsbehoerde (2014+) or PersonalvertretungsAufsichtskommission (up to 2013) — dsk and pvak take only these values, in any letter case. dok and verg take the body name as free text: ris_list_reference topic issuing_bodies. Omit to leave unfiltered; a blank value is rejected."
    • changedOutput schema / properties / error / properties / data / properties / reason / description
      Previous value: -"Machine-readable failure mode. Declared by this tool: `court_filter_mismatch`: A court-conditional filter was sent with the wrong court, or case_number/dates/decision_type were sent with normenliste (a norm index, not decisions) — rejected locally before any upstream call; the message names the offending pair. `invalid_query`: A page past the last page of results, or a parameter value that failed validation — decision_kind/subject_area checked locally against the reference tables, sort_by rejected locally because court normenliste indexes laws rather than decisions, or RIS rejected the value in-band (message passed through verbatim, in German, and it does not name the page). `upstream_error`: RIS is unreachable, returned a server error, or served an HTML error page. `upstream_timeout`: RIS did not answer the search within the request deadline. Other values are possible when a failure originates below the handler."New value: +"Machine-readable failure mode. Declared by this tool: `court_filter_mismatch`: A court-conditional filter was sent with the wrong court, or case_number/dates/decision_type were sent with normenliste (a norm index, not decisions) — rejected locally before any upstream call; the message names the offending pair. `invalid_query`: A page past the last page of results, or a parameter value that failed validation — decision_kind/subject_area checked locally against the reference tables, issuing_body checked locally against the dsk/pvak value lists, sort_by rejected locally because court normenliste indexes laws rather than decisions, or RIS rejected the value in-band (message passed through verbatim, in German, and it does not name the page). `upstream_error`: RIS is unreachable, returned a server error, or served an HTML error page. `upstream_timeout`: RIS did not answer the search within the request deadline. Other values are possible when a failure originates below the handler."
    • changedOutput schema / properties / results / items / properties / case_numbers / description
      Previous value: -"Case numbers (Geschäftszahl) — a decision can carry several."New value: +"Case numbers (Geschäftszahl), one per element in upstream order — a headnote lists every decision it covers, the leading decision first. Pass a value back as case_number to find that decision."
  3. Changed24 schema fields changed
    • changedInput schema / properties / case_number / description
      Previous value: -"Exact Geschäftszahl — returns that decision’s documents. Formats differ per court (examples: ris_list_reference topic courts). Not available for normenliste."New value: +"Exact Geschäftszahl — returns that decision’s documents. Formats differ per court (examples: ris_list_reference topic courts). Not available for normenliste. Omit to leave unfiltered; a blank value is rejected."
    • addedInput schema / properties / case_number / pattern
      Added value: +"\\S"
    • changedInput schema / properties / collection_number / description
      Previous value: -"Official collection number (Sammlungsnummer). vfgh, vwgh, and uvs only, and the accepted form differs: vfgh and uvs store the bare number and match it dotted or undotted (\"19632\", \"19.632\"), while vwgh stores the full labelled undotted cite — pass \"VwSlg 18000 A/2010\", or the space-anchored prefix \"VwSlg 18000 *\" when the part letter or year is unknown. A bare or dotted number matches nothing under vwgh."New value: +"Official collection number (Sammlungsnummer). vfgh, vwgh, and uvs only, and the accepted form differs: vfgh and uvs store the bare number and match it dotted or undotted (\"19632\", \"19.632\"), while vwgh stores the full labelled undotted cite — pass \"VwSlg 18000 A/2010\", or the space-anchored prefix \"VwSlg 18000 *\" when the part letter or year is unknown. A bare or dotted number matches nothing under vwgh. Omit to leave unfiltered; a blank value is rejected."
    • addedInput schema / properties / collection_number / pattern
      Added value: +"\\S"
    • changedInput schema / properties / court_name / description
      Previous value: -"Filter within the ordinary courts (justiz only) — \"OGH\", \"OLG Wien\", \"LG Linz\"."New value: +"Filter within the ordinary courts (justiz only) — \"OGH\", \"OLG Wien\", \"LG Linz\". Omit to leave unfiltered; a blank value is rejected."
    • addedInput schema / properties / court_name / pattern
      Added value: +"\\S"
    • changedInput schema / properties / decision_kind / description
      Previous value: -"Decision kind (Entscheidungsart) — per-court value sets, validated locally: ris_list_reference topic decision_kinds. No such parameter exists for normenliste, dok, pvak, umse, bks, or upts. For justiz the four documented values are not yet populated in the corpus (every value returns 0 hits, verified 2026-07-05) — filter justiz with query or norm instead."New value: +"Decision kind (Entscheidungsart) — per-court value sets, validated locally: ris_list_reference topic decision_kinds. No such parameter exists for normenliste, dok, pvak, umse, bks, or upts. For justiz the four documented values are not yet populated in the corpus (every value returns 0 hits, verified 2026-07-05) — filter justiz with query or norm instead. Omit to leave unfiltered; a blank value is rejected."
    • addedInput schema / properties / decision_kind / pattern
      Added value: +"\\S"
    • changedInput schema / properties / issuing_body / description
      Previous value: -"Deciding body (EntscheidendeBehoerde) — dsk, dok, pvak, and verg only. dsk: Datenschutzbehoerde (2014+) or Datenschutzkommission (up to 2013). Full value lists: ris_list_reference topic issuing_bodies."New value: +"Deciding body (EntscheidendeBehoerde) — dsk, dok, pvak, and verg only. dsk: Datenschutzbehoerde (2014+) or Datenschutzkommission (up to 2013). Full value lists: ris_list_reference topic issuing_bodies. Omit to leave unfiltered; a blank value is rejected."
    • addedInput schema / properties / issuing_body / pattern
      Added value: +"\\S"
    • changedInput schema / properties / norm / description
      Previous value: -"Cited-provision filter (Norm) — \"DSG §1\", \"DSGVO Art32\", \"GewO 1994 §129\", matching the format returned in norms_cited. The highest-value case-law filter."New value: +"Cited-provision filter (Norm) — \"DSG §1\", \"DSGVO Art32\", \"GewO 1994 §129\", matching the format returned in norms_cited. The highest-value case-law filter. Omit to leave unfiltered; a blank value is rejected."
    • addedInput schema / properties / norm / pattern
      Added value: +"\\S"
    • removedInput schema / properties / page_size / anyOf
      Removed value: -[
      -  {
      -    "const": 10,
      -    "type": "number"
      -  },
      -  {
      -    "const": 20,
      -    "type": "number"
      -  },
      -  {
      -    "const": 50,
      -    "type": "number"
      -  },
      -  {
      -    "const": 100,
      -    "type": "number"
      -  }
      -]
    • changedInput schema / properties / page_size / description
      Previous value: -"Documents per page — RIS accepts 10, 20, 50, or 100. Default 20."New value: +"Documents per page: 10 or 20 (default 20). For more results, keep the size and raise page."
    • addedInput schema / properties / page_size / enum
      Added value: +[
      +  10,
      +  20
      +]
    • addedInput schema / properties / page_size / type
      Added value: +"number"
    • changedInput schema / properties / party / description
      Previous value: -"Political party the decision concerns (upts only). Documented values: ÖVP, SPÖ, FPÖ, KPÖ, BZÖ, Team Stronach — the filter is full-text, and further party names appear in live data (e.g. \"Wandel\")."New value: +"Political party the decision concerns (upts only). Documented values: ÖVP, SPÖ, FPÖ, KPÖ, BZÖ, Team Stronach — the filter is full-text, and further party names appear in live data (e.g. \"Wandel\"). Omit to leave unfiltered; a blank value is rejected."
    • addedInput schema / properties / party / pattern
      Added value: +"\\S"
    • changedInput schema / properties / query / description
      Previous value: -"Full-text search over decisions (Suchworte). Boolean UND/ODER/NICHT or AND/OR/NOT, quoted phrases, trailing-only * wildcard."New value: +"Full-text search over decisions (Suchworte). Boolean UND/ODER/NICHT or AND/OR/NOT, quoted phrases, trailing-only * wildcard. Omit to leave unfiltered; a blank value is rejected."
    • addedInput schema / properties / query / pattern
      Added value: +"\\S"
    • changedInput schema / properties / subject_area / description
      Previous value: -"Subject-area taxonomy filter (Fachgebiet, justiz only) — 39 exact German values like \"Datenschutzrecht\", validated locally: ris_list_reference topic justiz_subject_areas. The corpus carries no tagged documents yet (every value returns 0 hits, verified 2026-07-05) — filter with query or norm instead until RIS populates the tags."New value: +"Subject-area taxonomy filter (Fachgebiet, justiz only) — 39 exact German values like \"Datenschutzrecht\", validated locally: ris_list_reference topic justiz_subject_areas. The corpus carries no tagged documents yet (every value returns 0 hits, verified 2026-07-05) — filter with query or norm instead until RIS populates the tags. Omit to leave unfiltered; a blank value is rejected."
    • addedInput schema / properties / subject_area / pattern
      Added value: +"\\S"
    • changedInput schema / properties / subject_law / description
      Previous value: -"Media statute the case concerns (Bereich, bks only) — e.g. \"ORF-Gesetz\", \"Privatradiogesetz\"."New value: +"Media statute the case concerns (Bereich, bks only) — e.g. \"ORF-Gesetz\", \"Privatradiogesetz\". Omit to leave unfiltered; a blank value is rejected."
    • addedInput schema / properties / subject_law / pattern
      Added value: +"\\S"
  4. Changed6 schema fields changed
    • changedInput schema / $schema
      Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • addedInput schema / additionalProperties
      Added value: +false
    • changedOutput schema / $schema
      Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
    • addedOutput schema / anyOf
      Added value: +[
      +  {
      +    "not": {
      +      "required": [
      +        "error"
      +      ]
      +    },
      +    "required": [
      +      "results",
      +      "totalCount",
      +      "page",
      +      "pageSize"
      +    ]
      +  },
      +  {
      +    "required": [
      +      "error"
      +    ]
      +  }
      +]
    • addedOutput schema / properties / error
      Added value: +{
      +  "additionalProperties": {},
      +  "description": "Present when the call failed. Absent on success.",
      +  "properties": {
      +    "code": {
      +      "description": "JSON-RPC error code for this failure.",
      +      "maximum": 9007199254740991,
      +      "minimum": -9007199254740991,
      +      "type": "integer"
      +    },
      +    "data": {
      +      "additionalProperties": {},
      +      "properties": {
      +        "reason": {
      +          "description": "Machine-readable failure mode. Declared by this tool: `court_filter_mismatch`: A court-conditional filter was sent with the wrong court, or case_number/dates/decision_type were sent with normenliste (a norm index, not decisions) — rejected locally before any upstream call; the message names the offending pair. `invalid_query`: A page past the last page of results, or a parameter value that failed validation — decision_kind/subject_area checked locally against the reference tables, sort_by rejected locally because court normenliste indexes laws rather than decisions, or RIS rejected the value in-band (message passed through verbatim, in German, and it does not name the page). `upstream_error`: RIS is unreachable, returned a server error, or served an HTML error page. `upstream_timeout`: RIS did not answer the search within the request deadline. Other values are possible when a failure originates below the handler.",
      +          "examples": [
      +            "court_filter_mismatch",
      +            "invalid_query",
      +            "upstream_error",
      +            "upstream_timeout"
      +          ],
      +          "type": "string"
      +        },
      +        "recovery": {
      +          "additionalProperties": {},
      +          "description": "Actionable next step for the caller.",
      +          "properties": {
      +            "hint": {
      +              "type": "string"
      +            }
      +          },
      +          "required": [
      +            "hint"
      +          ],
      +          "type": "object"
      +        },
      +        "retryable": {
      +          "description": "Whether retrying may succeed.",
      +          "type": "boolean"
      +        }
      +      },
      +      "type": "object"
      +    },
      +    "message": {
      +      "description": "Human-readable description of what went wrong.",
      +      "type": "string"
      +    }
      +  },
      +  "required": [
      +    "code",
      +    "message"
      +  ],
      +  "type": "object"
      +}
    • removedOutput schema / required
      Removed value: -[
      -  "results",
      -  "totalCount",
      -  "page",
      -  "pageSize"
      -]
  5. Changed1 schema field changed
    • changedInput schema / properties / sort_by / description
      Previous value: -"Sort column. Default: upstream order."New value: +"Sort column. Default: upstream order. Not available for court: normenliste, which indexes laws rather than decisions."
  6. Changed1 schema field changed
    • changedInput schema / properties / collection_number / description
      Previous value: -"Official collection number (Sammlungsnummer) — VfSlg/VwSlg cites. vfgh, vwgh, and uvs only."New value: +"Official collection number (Sammlungsnummer). vfgh, vwgh, and uvs only, and the accepted form differs: vfgh and uvs store the bare number and match it dotted or undotted (\"19632\", \"19.632\"), while vwgh stores the full labelled undotted cite — pass \"VwSlg 18000 A/2010\", or the space-anchored prefix \"VwSlg 18000 *\" when the part letter or year is unknown. A bare or dotted number matches nothing under vwgh."
  7. Changed2 schema fields changed
    • changedInput schema / properties / decided_from / pattern
      Previous value: -"^\\d{4}-\\d{2}-\\d{2}$"New value: +"^\\d{4}-(?:0[1-9]|1[0-2])-(?:0[1-9]|[12]\\d|3[01])$"
    • changedInput schema / properties / decided_to / pattern
      Previous value: -"^\\d{4}-\\d{2}-\\d{2}$"New value: +"^\\d{4}-(?:0[1-9]|1[0-2])-(?:0[1-9]|[12]\\d|3[01])$"
  8. Changed7 schema fields changed
    • changedOutput schema / properties / results / description
      Previous value: -"Matching decision documents for the requested page. Totals and paging in enrichment."New value: +"Matching documents for the requested page — decisions, or indexed laws under court normenliste. Totals and paging in enrichment."
    • changedOutput schema / properties / results / items / description
      Previous value: -"One decision document (headnote or full text) from the selected court."New value: +"One document from the selected court — a decision (headnote or full text), or, under court normenliste, one law of the VwGH norm index (see norm_index)."
    • addedOutput schema / properties / results / items / properties / indexes
      Added value: +{
      +  "description": "Systematik classification entries (Indizes) — the same taxonomy ris_search_legislation filters on, so an entry copied here finds the consolidated law around the decision. Carried by vfgh, vwgh, lvwg, uvs, umse, and normenliste; empty for the rest.",
      +  "items": {
      +    "description": "One Systematik index entry, e.g. \"10/10 Datenschutz\".",
      +    "type": "string"
      +  },
      +  "type": "array"
      +}
    • addedOutput schema / properties / results / items / properties / norm_index
      Added value: +{
      +  "additionalProperties": false,
      +  "description": "The law this record indexes. Present only for court normenliste (the VwGH norm index); absent for the sixteen deciding courts, whose records describe a decision instead.",
      +  "properties": {
      +    "abbreviation": {
      +      "description": "Citable short form the VwGH uses for the law, e.g. \"DSG 2000\", \"HlG 1989\", \"KFGNov 21te\".",
      +      "type": "string"
      +    },
      +    "reference": {
      +      "description": "Promulgation reference of the law (Fundstelle), e.g. \"BGBl I 165/1999\" — resolve it with ris_search_gazette or ris_lookup_citation.",
      +      "type": "string"
      +    },
      +    "title": {
      +      "description": "Full title of the law as the index records it (Titel) — often several lines, carrying the parliamentary references and originating gazette.",
      +      "type": "string"
      +    },
      +    "type": {
      +      "description": "Norm type code (BG, V, K, …) — glossary: ris_list_reference topic law_types.",
      +      "type": "string"
      +    }
      +  },
      +  "type": "object"
      +}
    • addedOutput schema / properties / results / items / properties / note
      Added value: +{
      +  "description": "Annotation (Anmerkung) — a renaming or lifecycle note on a normenliste law, an editorial note on a justiz or dsk decision.",
      +  "type": "string"
      +}
    • addedOutput schema / properties / results / items / properties / state
      Added value: +{
      +  "description": "Bundesland whose administrative court decided (lvwg and uvs records) — the German name, e.g. \"Tirol\".",
      +  "type": "string"
      +}
    • changedOutput schema / properties / results / items / required
      Previous value: -[
      -  "document_number",
      -  "court",
      -  "case_numbers",
      -  "norms_cited",
      -  "content_urls"
      -]New value: +[
      +  "document_number",
      +  "court",
      +  "case_numbers",
      +  "norms_cited",
      +  "indexes",
      +  "content_urls"
      +]
  9. First observed

TDQS

A4.7/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnly/openWorld/idempotent, so the safety profile is covered. The description adds non-obvious behavioral context: calls are cheap so per-court fan-out is fine, historical tribunals are closed windows, and norm is called out as the highest-value filter. It does not discuss pagination or result-shape behavior, but the output schema and page/page_size descriptions carry that.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with the required court constraint and the routing rule, and almost every clause carries information (court enumeration, filter taxonomy, sibling pointer). It is one dense run-on paragraph with long em-dash chains, so the court-conditional filter map is harder to scan than it needs to be; slight restructuring would help.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a 24-parameter search tool with an output schema, the description covers everything an agent needs: required parameter, the per-court constraint, the full filter taxonomy with court applicability, format examples for the trickiest filters, and explicit referral to ris_lookup_citation and ris_list_reference. Remaining details (pagination, empty-corpus caveats) are already handled in schema parameter descriptions.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so baseline would be 3, but the description adds real semantic value: norm filter examples ("DSG §1", "DSGVO Art32"), and a compact map of which court each conditional filter belongs to (issuing_body→dsk/dok/pvak/verg, court_name/legal_area/subject_area→justiz, state→lvwg/uvs, party→upts, commission/senate/discrimination_ground→gbk, subject_law→bks, collection_number→vfgh/vwgh/uvs). That court-conditional grouping is not obvious from a flat 24-parameter list and materially reduces misfires.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource (search Austrian case law) and immediately scopes it to one court/tribunal per call, enumerating all valid court codes with plain-language glosses. This clearly separates it from ris_search_legislation, ris_search_gazette, and ris_get_document without requiring the sibling schemas to be opened.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicit when-to-use and when-to-use-something-else: cross-court research is one call per court (and calls are cheap), court codes/windows live in ris_list_reference topic courts, and a known Geschäftszahl/ECLI/VfSlg cite should go to ris_lookup_citation instead. It also flags that historical bodies are closed windows with successors, which prevents futile searching.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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