store

Check Photo Compatibility

check_photo_compatibility

Read-onlyIdempotent

Check whether supplied pixel dimensions meet the print-contract 120 DPI hard gate used by upload. Returns per-size required_px. Crop and artefacts are still reviewed in the configurator. With a delivery country, also lists market-visible wall formats. If width/height are omitted, reports that suitability cannot be verified without dimensions.

Input Schema

TableJSON Schema

Name	Required	Description
`width`	No	Photo width in pixels
`format`	No	Image format (e.g. 'jpeg', 'png', 'heic', 'webp')
`height`	No	Photo height in pixels
`country`	No	Delivery country as ISO alpha-2 or alpha-3. Required before market-visible print formats can be shown.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`error`	No
`photo`	No
`market`	No
`country`	No
`message`	No
`format_note`	No
`launch_gate`	No
`recommendation`	No
`review_factors`	No
`_response_budget`	No
`assessment_status`	No
`configurator_note`	No
`resolution_status`	No
`recommended_format`	No
`resolution_by_size`	No
`available_print_formats`	No
`compatibility_determined`	No
`supported_upload_formats`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed7 schema fields changedAug 23, 2026

removedInput schema / required

Removed value: -[
-  "width",
-  "height"
-]

changedOutput schema / properties / assessment_status / enum

Previous value: -[
-  "destination_required",
-  "requires_configurator_review",
-  "product_unavailable"
-]New value: +[
+  "destination_required",
+  "dimensions_required",
+  "requires_configurator_review",
+  "product_unavailable",
+  "incompatible",
+  "too_large"
+]

addedOutput schema / properties / available_print_formats / items / properties / required_px

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "landscape": {
+      "additionalProperties": false,
+      "properties": {
+        "h": {
+          "type": "number"
+        },
+        "w": {
+          "type": "number"
+        }
+      },
+      "required": [
+        "w",
+        "h"
+      ],
+      "type": "object"
+    },
+    "portrait": {
+      "additionalProperties": false,
+      "properties": {
+        "h": {
+          "type": "number"
+        },
+        "w": {
+          "type": "number"
+        }
+      },
+      "required": [
+        "w",
+        "h"
+      ],
+      "type": "object"
+    }
+  },
+  "required": [
+    "landscape",
+    "portrait"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / available_print_formats / items / properties / resolution

Added value: +{
+  "enum": [
+    "ok",
+    "warn",
+    "fail"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / available_print_formats / items / properties / technical_size
```
Added value: +{
+  "type": "string"
+}
```

addedOutput schema / properties / resolution_by_size

Added value: +{
+  "items": {
+    "additionalProperties": false,
+    "properties": {
+      "orientation": {
+        "enum": [
+          "landscape",
+          "portrait"
+        ],
+        "type": "string"
+      },
+      "recommended_px": {
+        "additionalProperties": false,
+        "properties": {
+          "h": {
+            "type": "number"
+          },
+          "w": {
+            "type": "number"
+          }
+        },
+        "required": [
+          "w",
+          "h"
+        ],
+        "type": "object"
+      },
+      "required_px": {
+        "additionalProperties": false,
+        "properties": {
+          "h": {
+            "type": "number"
+          },
+          "w": {
+            "type": "number"
+          }
+        },
+        "required": [
+          "w",
+          "h"
+        ],
+        "type": "object"
+      },
+      "size": {
+        "type": "string"
+      },
+      "status": {
+        "enum": [
+          "ok",
+          "warn",
+          "fail"
+        ],
+        "type": "string"
+      }
+    },
+    "required": [
+      "size",
+      "orientation",
+      "status",
+      "required_px",
+      "recommended_px"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}

addedOutput schema / properties / resolution_status

Added value: +{
+  "enum": [
+    "compatible",
+    "incompatible",
+    "mixed",
+    "too_large",
+    "unknown"
+  ],
+  "type": "string"
+}

Changed1 schema field changedAug 14, 2026

addedOutput schema / properties / _response_budget

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "dropped": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "limit_bytes": {
+      "type": "number"
+    },
+    "note": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "dropped",
+    "limit_bytes",
+    "note"
+  ],
+  "type": "object"
+}

Changed15 schema fields changedJul 25, 2026

addedInput schema / properties / country

Added value: +{
+  "description": "Delivery country as ISO alpha-2 or alpha-3. Required before market-visible print formats can be shown.",
+  "maxLength": 3,
+  "type": "string"
+}

addedOutput schema / properties / assessment_status

Added value: +{
+  "enum": [
+    "destination_required",
+    "requires_configurator_review",
+    "product_unavailable"
+  ],
+  "type": "string"
+}

addedOutput schema / properties / available_print_formats

Added value: +{
+  "items": {
+    "additionalProperties": false,
+    "properties": {
+      "dimensions_cm": {
+        "type": "string"
+      },
+      "label": {
+        "type": "string"
+      },
+      "product": {
+        "type": "string"
+      },
+      "size": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "product",
+      "size",
+      "label",
+      "dimensions_cm"
+    ],
+    "type": "object"
+  },
+  "type": "array"
+}

addedOutput schema / properties / compatibility_determined
```
Added value: +{
+  "type": "boolean"
+}
```
removedOutput schema / properties / compatible_count
```
Removed value: -{
-  "type": "number"
-}
```

addedOutput schema / properties / country

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

addedOutput schema / properties / launch_gate

Added value: +{
+  "additionalProperties": {},
+  "propertyNames": {
+    "type": "string"
+  },
+  "type": "object"
+}

addedOutput schema / properties / market

Added value: +{
+  "anyOf": [
+    {
+      "type": "string"
+    },
+    {
+      "type": "null"
+    }
+  ]
+}

addedOutput schema / properties / recommendation / anyOf

Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / recommendation / type
```
Removed value: -"string"
```
addedOutput schema / properties / recommended_format
```
Added value: +{
+  "type": "null"
+}
```

removedOutput schema / properties / recommended_size

Removed value: -{
-  "anyOf": [
-    {
-      "additionalProperties": false,
-      "properties": {
-        "label": {
-          "type": "string"
-        },
-        "quality": {
-          "enum": [
-            "excellent",
-            "good",
-            "minimum",
-            "too_low"
-          ],
-          "type": "string"
-        },
-        "size": {
-          "type": "string"
-        },
-        "size_cm": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "size",
-        "label",
-        "size_cm",
-        "quality"
-      ],
-      "type": "object"
-    },
-    {
-      "type": "null"
-    }
-  ]
-}

addedOutput schema / properties / review_factors

Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}

removedOutput schema / properties / sizes

Removed value: -{
-  "items": {
-    "additionalProperties": false,
-    "properties": {
-      "compatible": {
-        "type": "boolean"
-      },
-      "label": {
-        "type": "string"
-      },
-      "min_height": {
-        "type": "number"
-      },
-      "min_width": {
-        "type": "number"
-      },
-      "quality": {
-        "enum": [
-          "excellent",
-          "good",
-          "minimum",
-          "too_low"
-        ],
-        "type": "string"
-      },
-      "size": {
-        "type": "string"
-      },
-      "size_cm": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "size",
-      "label",
-      "size_cm",
-      "min_width",
-      "min_height",
-      "compatible",
-      "quality"
-    ],
-    "type": "object"
-  },
-  "type": "array"
-}

addedOutput schema / properties / supported_upload_formats

Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}

First observedJul 2, 2026

TDQS

A4.7/5.0

Behavior5/5

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

Beyond the read-only and idempotent annotations, it discloses the 120 DPI contract rule, per-size required_px output, country-dependent behavior, and the fallback behavior when dimensions are omitted. This is rich behavioral context.

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

Conciseness5/5

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

Four sentences with each one adding a distinct piece of information: core purpose, return type, scope boundary, country behavior, and omission caveat. No filler.

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?

The description is complete for a read-only, idempotent tool with an output schema and fully documented parameters. It covers the central rule, optional behavior, exclusions, and edge case.

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

Parameters4/5

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

Schema coverage is 100%, so the baseline is 3. The description adds semantics beyond the schema by explaining that omission of width/height is allowed but results in an unverifiable report, and that country enables market-visible wall formats.

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?

The description gives a specific verb ('Check') and a concrete resource: whether pixel dimensions meet the 120 DPI hard gate used by upload. It also differentiates itself by clarifying that crop and artefact review happen in the configurator, not here.

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

Usage Guidelines4/5

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

It implies when this tool is relevant for upload compatibility checking and points to the configurator for crop/artefact concerns. It does not explicitly name a sibling alternative, but the context makes the boundary clear.

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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