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mcp-stashbox

by smeet666
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TypeScript
Remote

Get one scene

get_scene
Read-only

Fetch a single scene record by UUID from multiple stash-box catalogues, showing source attributions and resolving disagreements by preferred order. Optionally limit sources or sections.

Instructions

Read one scene from the catalogue its identifier names, written instance:uuid. The answer is one card, read on every catalogue that holds the record and reached by the link each of them publishes to the same record elsewhere. Every value names the catalogues that said it, and where they disagree the reading nobody preferred is published beside the one that won. Name 'sources' to read one catalogue alone.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idYes
preferNoThe order the catalogues are preferred in where they disagree on a field. Left out, the registry's own order stands, and every card states the order applied.
sourcesNo
sectionsNoThe blocks read beside the record's own fields, which come back whatever is written here. Each name adds a block, and 'basic' asks for those fields alone.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
cardYes
cachedNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed3 schema fields changedv1.0.0
    • changedInput schema / properties / prefer / description
      Previous value: -"The order the catalogues are preferred in where they disagree on a field. Left out, the order the registry declares stands. Every card states the order that was applied."New value: +"The order the catalogues are preferred in where they disagree on a field. Left out, the registry's own order stands, and every card states the order applied."
    • changedOutput schema / properties / card / properties / held_by / description
      Previous value: -"Every catalogue asked, with the identifier the record carries there."New value: +"Every catalogue asked, with the identifier the record carries there. This is where what each of them did with the record is read: the state says which of the three it met, and the reason says why it was not asked or what went wrong."
    • removedOutput schema / properties / per_source
      Removed value: -{
-  "items": {
-    "additionalProperties": false,
-    "properties": {
-      "algorithms_not_searched": {
-        "description": "Fingerprint algorithms its lookup does not search, so they were never put to it.",
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "count": {
-        "description": "Rows it contributed. Never added to another catalogue's: they index corpora that overlap by an amount none of them publishes.",
-        "type": "number"
-      },
-      "error": {
-        "enum": [
-          "not_found",
-          "invalid_input",
-          "rate_limited",
-          "parse_failure",
-          "network_error",
-          "timeout"
-        ],
-        "type": "string"
-      },
-      "index_total": {
-        "description": "What its own index holds for this question, the rows on this page included.",
-        "type": "number"
-      },
-      "index_total_over_any_word": {
-        "description": "The total counts rows carrying any word of the query, its text index reading them apart.",
-        "type": "boolean"
-      },
-      "moment": {
-        "description": "Which moment failed.",
-        "type": "string"
-      },
-      "name": {
-        "description": "The name that catalogue calls itself.",
-        "type": "string"
-      },
-      "narrowings_naming_no_record": {
-        "description": "Narrowings written only with identifiers another catalogue minted.",
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "narrowings_not_received": {
-        "description": "Narrowings this catalogue cannot receive. This is the one field that says a catalogue cannot do something.",
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "narrowings_received_in_part": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "reason": {
-        "description": "Why it was not asked, or what went wrong.",
-        "type": "string"
-      },
-      "records": {
-        "description": "Distinct records behind its rows.",
-        "type": "number"
-      },
-      "skipped": {
-        "description": "Rows it answered with that this client could not read and left out.",
-        "type": "number"
-      },
-      "source": {
-        "description": "The catalogue this row is about.",
-        "type": "string"
-      },
-      "state": {
-        "description": "'answered' looked, and a count of zero means it found nothing. 'failed' could not answer, and states nothing about what it holds. 'absent' was never asked. Only the first is evidence about the world.",
-        "enum": [
-          "answered",
-          "failed",
-          "absent"
-        ],
-        "type": "string"
-      },
-      "unattributed": {
-        "description": "Records it answered with while carrying none of what was asked about.",
-        "type": "number"
-      }
-    },
-    "required": [
-      "source",
-      "state"
-    ],
-    "type": "object"
-  },
-  "type": "array"
-}
  2. Changed37 schema fields changedv0.9.0
    • removedInput schema / properties / id / description
      Removed value: -"Identifier as returned by another tool, such as stashdb:<uuid>."
    • addedInput schema / properties / id / pattern
      Added value: +"^(?:(?:stashdb|tpdb|fansdb|pmv|javstash):)?[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$"
    • addedInput schema / properties / prefer
      Added value: +{
+  "description": "The order the catalogues are preferred in where they disagree on a field. Left out, the order the registry declares stands. Every card states the order that was applied.",
+  "items": {
+    "enum": [
+      "stashdb",
+      "tpdb",
+      "fansdb",
+      "pmv",
+      "javstash"
+    ],
+    "type": "string"
+  },
+  "maxItems": 5,
+  "minItems": 1,
+  "type": "array"
+}
    • changedInput schema / properties / sections / description
      Previous value: -"Which blocks to load. Defaults to basic."New value: +"The blocks read beside the record's own fields, which come back whatever is written here. Each name adds a block, and 'basic' asks for those fields alone."
    • addedInput schema / properties / sections / maxItems
      Added value: +3
    • addedInput schema / properties / sections / minItems
      Added value: +1
    • addedInput schema / properties / sources
      Added value: +{
+  "items": {
+    "enum": [
+      "stashdb",
+      "tpdb",
+      "fansdb",
+      "pmv",
+      "javstash"
+    ],
+    "type": "string"
+  },
+  "maxItems": 5,
+  "minItems": 1,
+  "type": "array"
+}
    • removedOutput schema / description
      Removed value: -"A scene when 'status' is 'established'. When it is 'deleted' or 'merged' this is a marker: it carries the identifier, the catalogue, the successor and the former title, and no field describing a scene."
    • addedOutput schema / properties / cached
      Added value: +{
+  "type": "boolean"
+}
    • addedOutput schema / properties / card
      Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "counts": {
+      "additionalProperties": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "source": {
+              "type": "string"
+            },
+            "state": {
+              "enum": [
+                "answered",
+                "failed",
+                "absent"
+              ],
+              "type": "string"
+            },
+            "value": {
+              "anyOf": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            }
+          },
+          "required": [
+            "source",
+            "value",
+            "state"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "description": "Counts, one entry per catalogue asked and never added together. A null is read with the state beside it: a catalogue that publishes no such count, one that could not answer, and one nobody asked are three different facts.",
+      "propertyNames": {
+        "type": "string"
+      },
+      "type": "object"
+    },
+    "fields": {
+      "additionalProperties": {
+        "anyOf": [
+          {
+            "additionalProperties": false,
+            "properties": {
+              "agreed_by": {
+                "description": "The catalogues that published this reading. Two agreeing is evidence of its own.",
+                "items": {
+                  "type": "string"
+                },
+                "type": "array"
+              },
+              "disagreed": {
+                "description": "The readings nobody preferred, published rather than dropped: choosing between them is a policy, and a policy applied in silence is a claim nobody can check.",
+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "source": {
+                      "type": "string"
+                    },
+                    "value": {}
+                  },
+                  "required": [
+                    "source",
+                    "value"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "value": {
+                "description": "The reading the preference named, null where none published one."
+              }
+            },
+            "required": [
+              "value",
+              "agreed_by"
+            ],
+            "type": "object"
+          },
+          {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "also_at": {
+                  "description": "What this same record is called on another catalogue, from a link joining the two.",
+                  "items": {
+                    "additionalProperties": false,
+                    "properties": {
+                      "id": {
+                        "type": "string"
+                      },
+                      "source": {
+                        "type": "string"
+                      }
+                    },
+                    "required": [
+                      "source",
+                      "id"
+                    ],
+                    "type": "object"
+                  },
+                  "type": "array"
+                },
+                "published_by": {
+                  "description": "Every catalogue that published this very record. A shared name is no join, so an entry one catalogue minted names that one.",
+                  "items": {
+                    "type": "string"
+                  },
+                  "type": "array"
+                },
+                "same_name_as": {
+                  "description": "A record another catalogue published under a matching name. A resemblance, never a join.",
+                  "items": {
+                    "additionalProperties": false,
+                    "properties": {
+                      "id": {
+                        "type": "string"
+                      },
+                      "source": {
+                        "type": "string"
+                      }
+                    },
+                    "required": [
+                      "source",
+                      "id"
+                    ],
+                    "type": "object"
+                  },
+                  "type": "array"
+                },
+                "value": {}
+              },
+              "required": [
+                "value",
+                "published_by"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          }
+        ]
+      },
+      "description": "Each field of the record. A scalar carries the catalogues that said it; a list is the union, each entry naming who published it.",
+      "propertyNames": {
+        "type": "string"
+      },
+      "type": "object"
+    },
+    "held_by": {
+      "description": "Every catalogue asked, with the identifier the record carries there.",
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "error": {
+            "type": "string"
+          },
+          "id": {
+            "type": "string"
+          },
+          "reason": {
+            "type": "string"
+          },
+          "retrieved_at": {
+            "description": "The moment this client read it there.",
+            "type": "string"
+          },
+          "source": {
+            "type": "string"
+          },
+          "source_url": {
+            "description": "The address it was read at, which credits it.",
+            "type": "string"
+          },
+          "state": {
+            "enum": [
+              "answered",
+              "failed",
+              "absent"
+            ],
+            "type": "string"
+          },
+          "status": {
+            "description": "What the identifier addresses there now. A folded record is held elsewhere.",
+            "enum": [
+              "established",
+              "merged",
+              "deleted"
+            ],
+            "type": "string"
+          }
+        },
+        "required": [
+          "source",
+          "state"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "kind": {
+      "type": "string"
+    },
+    "notes": {
+      "description": "What this answer does not establish, which is what makes it safe to act on.",
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "preferred": {
+      "description": "The order the readings were preferred in. This is the policy that was applied, whether or not every catalogue in it answered.",
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "read_from": {
+      "description": "The catalogues that answered, in the order they were preferred. A policy and an outcome are two facts, and a reader deciding whether to change the policy needs both.",
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "kind",
+    "fields",
+    "counts",
+    "held_by",
+    "preferred",
+    "read_from",
+    "notes"
+  ],
+  "type": "object"
+}
    • removedOutput schema / properties / code
      Removed value: -{
-  "anyOf": [
-    {
-      "type": "string"
-    },
-    {
-      "type": "null"
-    }
-  ],
-  "description": "The studio's own reference, in whatever form it publishes."
-}
    • removedOutput schema / properties / created
      Removed value: -{
-  "anyOf": [
-    {
-      "type": "string"
-    },
-    {
-      "type": "null"
-    }
-  ]
-}
    • removedOutput schema / properties / details
      Removed value: -{
-  "anyOf": [
-    {
-      "type": "string"
-    },
-    {
-      "type": "null"
-    }
-  ]
-}
    • removedOutput schema / properties / director
      Removed value: -{
-  "anyOf": [
-    {
-      "type": "string"
-    },
-    {
-      "type": "null"
-    }
-  ],
-  "description": "Free text, which can name several people."
-}
    • removedOutput schema / properties / duration_seconds
      Removed value: -{
-  "anyOf": [
-    {
-      "type": "number"
-    },
-    {
-      "type": "null"
-    }
-  ]
-}
    • removedOutput schema / properties / fingerprint_count
      Removed value: -{
-  "additionalProperties": {
-    "type": "number"
-  },
-  "propertyNames": {
-    "type": "string"
-  },
-  "type": "object"
-}
    • removedOutput schema / properties / fingerprints
      Removed value: -{
-  "items": {
-    "additionalProperties": false,
-    "properties": {
-      "algorithm": {
-        "enum": [
-          "MD5",
-          "OSHASH",
-          "PHASH"
-        ],
-        "type": "string"
-      },
-      "contested": {
-        "anyOf": [
-          {
-            "type": "boolean"
-          },
-          {
-            "type": "null"
-          }
-        ],
-        "description": "Whether the reports reach the submissions. Null where the catalogue publishes no report count: a fingerprint nobody has disputed and one on a catalogue that counts no disputes are different things."
-      },
-      "duration_seconds": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "hash": {
-        "type": "string"
-      },
-      "reports": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ],
-        "description": "How many people reported against it. Null on a catalogue that records no reports, which is an unknown contest and never an absence of one."
-      },
-      "submissions": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ],
-        "description": "How many people entered this fingerprint. Null where the catalogue counts none."
-      }
-    },
-    "required": [
-      "algorithm",
-      "hash",
-      "duration_seconds",
-      "submissions",
-      "reports",
-      "contested"
-    ],
-    "type": "object"
-  },
-  "type": "array"
-}
    • removedOutput schema / properties / fingerprints_held
      Removed value: -{
-  "description": "How many the record holds, where the section shows a page of them.",
-  "type": "number"
-}
    • removedOutput schema / properties / former_title
      Removed value: -{
-  "anyOf": [
-    {
-      "type": "string"
-    },
-    {
-      "type": "null"
-    }
-  ],
-  "description": "Present on a marker: the title the record carried."
-}
    • removedOutput schema / properties / id
      Removed value: -{
-  "type": "string"
-}
    • removedOutput schema / properties / images
      Removed value: -{
-  "items": {
-    "additionalProperties": false,
-    "properties": {
-      "height": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "url": {
-        "description": "The address of the image. The image itself is never returned.",
-        "type": "string"
-      },
-      "width": {
-        "anyOf": [
-          {
-            "type": "number"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      }
-    },
-    "required": [
-      "url",
-      "width",
-      "height"
-    ],
-    "type": "object"
-  },
-  "type": "array"
-}
    • removedOutput schema / properties / merged_into
      Removed value: -{
-  "anyOf": [
-    {
-      "type": "string"
-    },
-    {
-      "type": "null"
-    }
-  ],
-  "description": "Present on a marker: the identifier that continues this record."
-}
    • removedOutput schema / properties / notes
      Removed value: -{
-  "items": {
-    "type": "string"
-  },
-  "type": "array"
-}
    • addedOutput schema / properties / per_source
      Added value: +{
+  "items": {
+    "additionalProperties": false,
+    "properties": {
+      "algorithms_not_searched": {
+        "description": "Fingerprint algorithms its lookup does not search, so they were never put to it.",
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "count": {
+        "description": "Rows it contributed. Never added to another catalogue's: they index corpora that overlap by an amount none of them publishes.",
+        "type": "number"
+      },
+      "error": {
+        "enum": [
+          "not_found",
+          "invalid_input",
+          "rate_limited",
+          "parse_failure",
+          "network_error",
+          "timeout"
+        ],
+        "type": "string"
+      },
+      "index_total": {
+        "description": "What its own index holds for this question, the rows on this page included.",
+        "type": "number"
+      },
+      "index_total_over_any_word": {
+        "description": "The total counts rows carrying any word of the query, its text index reading them apart.",
+        "type": "boolean"
+      },
+      "moment": {
+        "description": "Which moment failed.",
+        "type": "string"
+      },
+      "name": {
+        "description": "The name that catalogue calls itself.",
+        "type": "string"
+      },
+      "narrowings_naming_no_record": {
+        "description": "Narrowings written only with identifiers another catalogue minted.",
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "narrowings_not_received": {
+        "description": "Narrowings this catalogue cannot receive. This is the one field that says a catalogue cannot do something.",
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "narrowings_received_in_part": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      },
+      "reason": {
+        "description": "Why it was not asked, or what went wrong.",
+        "type": "string"
+      },
+      "records": {
+        "description": "Distinct records behind its rows.",
+        "type": "number"
+      },
+      "skipped": {
+        "description": "Rows it answered with that this client could not read and left out.",
+        "type": "number"
+      },
+      "source": {
+        "description": "The catalogue this row is about.",
+        "type": "string"
+      },
+      "state": {
+        "description": "'answered' looked, and a count of zero means it found nothing. 'failed' could not answer, and states nothing about what it holds. 'absent' was never asked. Only the first is evidence about the world.",
+        "enum": [
+          "answered",
+          "failed",
+          "absent"
+        ],
+        "type": "string"
+      },
+      "unattributed": {
+        "description": "Records it answered with while carrying none of what was asked about.",
+        "type": "number"
+      }
+    },
+    "required": [
+      "source",
+      "state"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}
    • removedOutput schema / properties / performers
      Removed value: -{
-  "items": {
-    "additionalProperties": false,
-    "properties": {
-      "credited_as": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ],
-        "description": "The name printed on this release, where it differs from the performer's own. It travels beside that name and never in place of it."
-      },
-      "disambiguation": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "id": {
-        "type": "string"
-      },
-      "name": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "id",
-      "name",
-      "credited_as",
-      "disambiguation"
-    ],
-    "type": "object"
-  },
-  "type": "array"
-}
    • removedOutput schema / properties / production_date
      Removed value: -{
-  "anyOf": [
-    {
-      "additionalProperties": false,
-      "properties": {
-        "precision": {
-          "description": "How much of the date a cataloguer entered. A value recorded to the year carries no month and no day, and reading it as one would claim a precision nobody entered.",
-          "enum": [
-            "day",
-            "month",
-            "year"
-          ],
-          "type": "string"
-        },
-        "value": {
-          "description": "The date exactly as the catalogue publishes it.",
-          "type": "string"
-        }
-      },
-      "required": [
-        "value",
-        "precision"
-      ],
-      "type": "object"
-    },
-    {
-      "type": "null"
-    }
-  ],
-  "description": "When the scene was made, which is a different question from when it was published. Rarely recorded, and never filled in from the release date."
-}
    • removedOutput schema / properties / release_date
      Removed value: -{
-  "anyOf": [
-    {
-      "additionalProperties": false,
-      "properties": {
-        "precision": {
-          "description": "How much of the date a cataloguer entered. A value recorded to the year carries no month and no day, and reading it as one would claim a precision nobody entered.",
-          "enum": [
-            "day",
-            "month",
-            "year"
-          ],
-          "type": "string"
-        },
-        "value": {
-          "description": "The date exactly as the catalogue publishes it.",
-          "type": "string"
-        }
-      },
-      "required": [
-        "value",
-        "precision"
-      ],
-      "type": "object"
-    },
-    {
-      "type": "null"
-    }
-  ],
-  "description": "When the scene was published."
-}
    • removedOutput schema / properties / retrieved_at
      Removed value: -{
-  "description": "When this record came off the catalogue, ISO 8601.",
-  "type": "string"
-}
    • removedOutput schema / properties / source
      Removed value: -{
-  "type": "string"
-}
    • removedOutput schema / properties / source_url
      Removed value: -{
-  "type": "string"
-}
    • removedOutput schema / properties / status
      Removed value: -{
-  "description": "'established' is a record the catalogue holds. 'merged' and 'deleted' are markers: the identifier resolves, and what comes back describes the record rather than the thing it once named.",
-  "enum": [
-    "established",
-    "deleted",
-    "merged"
-  ],
-  "type": "string"
-}
    • removedOutput schema / properties / studio
      Removed value: -{
-  "anyOf": [
-    {
-      "additionalProperties": false,
-      "properties": {
-        "id": {
-          "type": "string"
-        },
-        "name": {
-          "type": "string"
-        },
-        "parent": {
-          "anyOf": [
-            {
-              "type": "string"
-            },
-            {
-              "type": "null"
-            }
-          ]
-        }
-      },
-      "required": [
-        "id",
-        "name",
-        "parent"
-      ],
-      "type": "object"
-    },
-    {
-      "type": "null"
-    }
-  ]
-}
    • removedOutput schema / properties / tags
      Removed value: -{
-  "items": {
-    "additionalProperties": false,
-    "properties": {
-      "category": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ]
-      },
-      "id": {
-        "type": "string"
-      },
-      "name": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "id",
-      "name",
-      "category"
-    ],
-    "type": "object"
-  },
-  "type": "array"
-}
    • removedOutput schema / properties / title
      Removed value: -{
-  "anyOf": [
-    {
-      "type": "string"
-    },
-    {
-      "type": "null"
-    }
-  ]
-}
    • removedOutput schema / properties / updated
      Removed value: -{
-  "anyOf": [
-    {
-      "type": "string"
-    },
-    {
-      "type": "null"
-    }
-  ]
-}
    • removedOutput schema / properties / urls
      Removed value: -{
-  "items": {
-    "additionalProperties": false,
-    "properties": {
-      "site_category": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ],
-        "description": "The catalogue's own category for that site. Null on a catalogue that publishes no table of sites, since borrowing a neighbour's would sort a link by a taxonomy this catalogue never applied."
-      },
-      "site_name": {
-        "type": "string"
-      },
-      "url": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "url",
-      "site_name",
-      "site_category"
-    ],
-    "type": "object"
-  },
-  "type": "array"
-}
    • changedOutput schema / required
      Previous value: -[
-  "id",
-  "source",
-  "source_url",
-  "retrieved_at",
-  "status",
-  "notes"
-]New value: +[
+  "card"
+]
  3. First observedv0.1.1

TDQS

A3.5/5.0
Behavior4/5

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

The description provides behavioral context beyond the readOnlyHint annotation by explaining that the tool aggregates across catalogues, shows which catalogue contributed each value, discloses how disagreements are handled (the 'nobody preferred' reading published beside the winner), and notes that 'sources' restricts to one catalogue. This adds meaningful behavioral detail, though the phrasing is convoluted.

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

Conciseness3/5

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

The description is only three sentences, but they are densely packed and use awkward, non-standard phrasing (e.g., 'the reading nobody preferred'). It lacks front-loading of the core purpose and uses more words than necessary to convey the aggregation and conflict behavior.

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

Completeness3/5

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

For a tool with aggregation and conflict resolution behavior, the description covers the main concepts but is cryptic. It doesn't explain the 'prefer' and 'sections' parameters, and the existing prose may confuse more than clarify. An output schema exists, so return values are covered elsewhere, but the description itself leaves gaps for a smooth invocation.

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

Parameters3/5

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

The description adds meaning for the 'id' parameter (identifying the scene as instance:uuid) and the 'sources' parameter (read one catalogue alone). However, it does not mention the 'prefer' or 'sections' parameters. With schema coverage at 50%, the description partially compensates but leaves important parameters undocumented in prose.

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

Purpose4/5

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

The description clearly states the action 'Read one scene' and the resource (a scene identified by an instance:uuid), distinguishing it from search_scenes which searches. However, the phrasing 'from the catalogue its identifier names' is awkward, making it slightly less clear than a straightforward 'retrieve a single scene by ID'.

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

Usage Guidelines3/5

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

The description implies usage when you have a specific scene identifier (read one scene), but it does not explicitly compare to alternatives like search_scenes or get_sources. It does mention using the 'sources' parameter to read one catalogue alone, which is parameter-level guidance, not tool-selection guidance. Overall, usage context is implied rather than explicit.

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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