Skip to main content
Glama
Sign In

StockCake

by com.stockcake
OverviewDiscussionsAdmin

Upscale Image

upscale_image

Upscale a StockCake image or one of your edited images 2x, 4x or 8x (lossless PNG output). Charges credits. Waits up to 20 s, then returns a job_id for get_job. Re-sending identical arguments within 2 hours returns the same job (reused: true) instead of charging again. Requires a free StockCake account (the host will prompt to sign in).

Input Schema

NameRequiredDescriptionDefault
imageYesA StockCake image id (from search_images), one of your own edited image ids (from a previous result), or a job_id. Never a URL.
scaleYes
contextYesIn one sentence, what is the user trying to make or find?
llm_modelYesThe exact model identifier you (the assistant) are running as, taken from your system prompt or environment (e.g. "claude-opus-4-8", "gpt-5.2"). Used for analytics only. If you do not know your model identifier with certainty, pass "unknown" — never guess.
conversation_idNoPass the exact conversation_id from the server's previous response, unchanged. The server provides it on the first call — never invent one, and do not issue parallel tool calls until you have it. Keep passing the same conversation_id for the rest of the conversation, including after later user messages or on a different task; do not reset it when the user starts a new request.

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / anyOf
      Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "credits_charged": {
-        "type": "number"
-      },
-      "image": {
-        "additionalProperties": false,
-        "properties": {
-          "dimensions": {
-            "anyOf": [
-              {
-                "additionalProperties": false,
-                "properties": {
-                  "height": {
-                    "type": "number"
-                  },
-                  "width": {
-                    "type": "number"
-                  }
-                },
-                "required": [
-                  "width",
-                  "height"
-                ],
-                "type": "object"
-              },
-              {
-                "type": "null"
-              }
-            ],
-            "description": "Output pixel size; null when the file could not be probed"
-          },
-          "id": {
-            "description": "Edited image id — pass it to get_image (preview), download_image, or as an image reference",
-            "type": [
-              "number",
-              "null"
-            ]
-          },
-          "url": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "id",
-          "url",
-          "dimensions"
-        ],
-        "type": "object"
-      },
-      "job_id": {
-        "type": "string"
-      },
-      "status": {
-        "const": "completed",
-        "type": "string"
-      }
-    },
-    "required": [
-      "job_id",
-      "status",
-      "image",
-      "credits_charged"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "credits_charged": {
-        "type": "number"
-      },
-      "job_id": {
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "status": {
-        "const": "pending",
-        "type": "string"
-      }
-    },
-    "required": [
-      "job_id",
-      "status",
-      "credits_charged",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": {},
-    "properties": {
-      "code": {
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "code",
-      "message"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "credits_charged": {
+        "type": "number"
+      },
+      "image": {
+        "additionalProperties": false,
+        "properties": {
+          "dimensions": {
+            "anyOf": [
+              {
+                "additionalProperties": false,
+                "properties": {
+                  "height": {
+                    "type": "number"
+                  },
+                  "width": {
+                    "type": "number"
+                  }
+                },
+                "required": [
+                  "width",
+                  "height"
+                ],
+                "type": "object"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Output pixel size; null when the file could not be probed"
+          },
+          "id": {
+            "description": "Edited image id — pass it to get_image (preview), download_image, or as an image reference",
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "url": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "url",
+          "dimensions"
+        ],
+        "type": "object"
+      },
+      "job_id": {
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "reused": {
+        "const": true,
+        "type": "boolean"
+      },
+      "status": {
+        "const": "completed",
+        "type": "string"
+      }
+    },
+    "required": [
+      "job_id",
+      "status",
+      "image",
+      "credits_charged"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "credits_charged": {
+        "type": "number"
+      },
+      "job_id": {
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "reused": {
+        "const": true,
+        "type": "boolean"
+      },
+      "status": {
+        "const": "pending",
+        "type": "string"
+      }
+    },
+    "required": [
+      "job_id",
+      "status",
+      "credits_charged",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": {},
+    "properties": {
+      "code": {
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "code",
+      "message"
+    ],
+    "type": "object"
+  }
+]
  2. Changed1 schema field changed
    • changedOutput schema / anyOf
      Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "credits_charged": {
-        "type": "number"
-      },
-      "image": {
-        "additionalProperties": false,
-        "properties": {
-          "id": {
-            "description": "Edited image id — pass it to download_image or as an image reference",
-            "type": [
-              "number",
-              "null"
-            ]
-          },
-          "url": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "id",
-          "url"
-        ],
-        "type": "object"
-      },
-      "job_id": {
-        "type": "string"
-      },
-      "status": {
-        "const": "completed",
-        "type": "string"
-      }
-    },
-    "required": [
-      "job_id",
-      "status",
-      "image",
-      "credits_charged"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "credits_charged": {
-        "type": "number"
-      },
-      "job_id": {
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "status": {
-        "const": "pending",
-        "type": "string"
-      }
-    },
-    "required": [
-      "job_id",
-      "status",
-      "credits_charged",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": {},
-    "properties": {
-      "code": {
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "code",
-      "message"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "credits_charged": {
+        "type": "number"
+      },
+      "image": {
+        "additionalProperties": false,
+        "properties": {
+          "dimensions": {
+            "anyOf": [
+              {
+                "additionalProperties": false,
+                "properties": {
+                  "height": {
+                    "type": "number"
+                  },
+                  "width": {
+                    "type": "number"
+                  }
+                },
+                "required": [
+                  "width",
+                  "height"
+                ],
+                "type": "object"
+              },
+              {
+                "type": "null"
+              }
+            ],
+            "description": "Output pixel size; null when the file could not be probed"
+          },
+          "id": {
+            "description": "Edited image id — pass it to get_image (preview), download_image, or as an image reference",
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "url": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "url",
+          "dimensions"
+        ],
+        "type": "object"
+      },
+      "job_id": {
+        "type": "string"
+      },
+      "status": {
+        "const": "completed",
+        "type": "string"
+      }
+    },
+    "required": [
+      "job_id",
+      "status",
+      "image",
+      "credits_charged"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "credits_charged": {
+        "type": "number"
+      },
+      "job_id": {
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "status": {
+        "const": "pending",
+        "type": "string"
+      }
+    },
+    "required": [
+      "job_id",
+      "status",
+      "credits_charged",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": {},
+    "properties": {
+      "code": {
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "code",
+      "message"
+    ],
+    "type": "object"
+  }
+]
  3. First observed

TDQS

A4.3/5.0
Behavior5/5

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

Discloses cost (charges credits), latency ceiling (20 s), the async handoff to get_job, the 2-hour dedupe window returning the same job with reused: true without re-charging, and the auth prerequisite. That is far more than the annotations convey; the only tension is that this dedupe behavior reads as effectively idempotent while idempotentHint is false, but the annotation is a hint and the description is explicit and more useful.

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?

Front-loaded with what is produced and at which scales, then cost, latency, polling path, dedupe, and auth in short declarative clauses. Every sentence carries a distinct operational fact with 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?

Output schema exists, so return shape need not be described; the description still covers the essentials an agent needs before calling: credits spent, timeout behavior, follow-up tool (get_job), repeat-call semantics, and the account requirement.

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?

Schema description coverage is 80% and the image, context, llm_model and conversation_id parameters are already documented in the schema, including the 'never a URL' rule. The description only echoes the 2x/4x/8x scale options and adds no new syntax or format guidance for the parameters.

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?

States a specific verb and resource (upscale a StockCake or edited image) plus the exact scale factors and output format (lossless PNG), which implicitly separates it from sibling resize_image. It does not name the sibling alternative explicitly, so an agent must infer the boundary.

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?

Gives clear operational context: it charges credits, blocks up to 20 s, then hands off a job_id to get_job, and requires a free account. It does not state when to prefer this over resize_image or what happens on non-square/oversized inputs, so no explicit exclusion is provided.

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

All StockCake toolsInspect
Try in Browser
One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Glama MCP Gateway

Add one secure layer between your agents and this server.

Resources