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TinyFn

by io.tinyfn

nth_cube

Get the nth cube number.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nYesWhich cube number

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
nYes
cubeYes

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Changed3 schema fields changed
    • removedOutput schema / $defs / CubeResponse
      Removed value: -{
-  "properties": {
-    "cube": {
-      "title": "Cube",
-      "type": "integer"
-    },
-    "n": {
-      "title": "N",
-      "type": "integer"
-    }
-  },
-  "required": [
-    "n",
-    "cube"
-  ],
-  "title": "CubeResponse",
-  "type": "object"
-}
    • addedOutput schema / $defs / app__routers__number_utils__CubeResponse
      Added value: +{
+  "properties": {
+    "cube": {
+      "title": "Cube",
+      "type": "integer"
+    },
+    "n": {
+      "title": "N",
+      "type": "integer"
+    }
+  },
+  "required": [
+    "n",
+    "cube"
+  ],
+  "title": "CubeResponse",
+  "type": "object"
+}
    • changedOutput schema / x-fastmcp-top-level-schema
      Previous value: -"CubeResponse"New value: +"app__routers__number_utils__CubeResponse"
  2. Changed3 schema fields changed
    • addedOutput schema / $defs / CubeResponse
      Added value: +{
+  "properties": {
+    "cube": {
+      "title": "Cube",
+      "type": "integer"
+    },
+    "n": {
+      "title": "N",
+      "type": "integer"
+    }
+  },
+  "required": [
+    "n",
+    "cube"
+  ],
+  "title": "CubeResponse",
+  "type": "object"
+}
    • removedOutput schema / $defs / app__routers__number_utils__CubeResponse
      Removed value: -{
-  "properties": {
-    "cube": {
-      "title": "Cube",
-      "type": "integer"
-    },
-    "n": {
-      "title": "N",
-      "type": "integer"
-    }
-  },
-  "required": [
-    "n",
-    "cube"
-  ],
-  "title": "CubeResponse",
-  "type": "object"
-}
    • changedOutput schema / x-fastmcp-top-level-schema
      Previous value: -"app__routers__number_utils__CubeResponse"New value: +"CubeResponse"
  3. Changed3 schema fields changed
    • removedOutput schema / $defs / CubeResponse
      Removed value: -{
-  "properties": {
-    "cube": {
-      "title": "Cube",
-      "type": "integer"
-    },
-    "n": {
-      "title": "N",
-      "type": "integer"
-    }
-  },
-  "required": [
-    "n",
-    "cube"
-  ],
-  "title": "CubeResponse",
-  "type": "object"
-}
    • addedOutput schema / $defs / app__routers__number_utils__CubeResponse
      Added value: +{
+  "properties": {
+    "cube": {
+      "title": "Cube",
+      "type": "integer"
+    },
+    "n": {
+      "title": "N",
+      "type": "integer"
+    }
+  },
+  "required": [
+    "n",
+    "cube"
+  ],
+  "title": "CubeResponse",
+  "type": "object"
+}
    • changedOutput schema / x-fastmcp-top-level-schema
      Previous value: -"CubeResponse"New value: +"app__routers__number_utils__CubeResponse"
  4. Changed3 schema fields changed
    • addedOutput schema / $defs / CubeResponse
      Added value: +{
+  "properties": {
+    "cube": {
+      "title": "Cube",
+      "type": "integer"
+    },
+    "n": {
+      "title": "N",
+      "type": "integer"
+    }
+  },
+  "required": [
+    "n",
+    "cube"
+  ],
+  "title": "CubeResponse",
+  "type": "object"
+}
    • removedOutput schema / $defs / app__routers__number_utils__CubeResponse
      Removed value: -{
-  "properties": {
-    "cube": {
-      "title": "Cube",
-      "type": "integer"
-    },
-    "n": {
-      "title": "N",
-      "type": "integer"
-    }
-  },
-  "required": [
-    "n",
-    "cube"
-  ],
-  "title": "CubeResponse",
-  "type": "object"
-}
    • changedOutput schema / x-fastmcp-top-level-schema
      Previous value: -"app__routers__number_utils__CubeResponse"New value: +"CubeResponse"
  5. Changed3 schema fields changed
    • removedOutput schema / $defs / CubeResponse
      Removed value: -{
-  "properties": {
-    "cube": {
-      "title": "Cube",
-      "type": "integer"
-    },
-    "n": {
-      "title": "N",
-      "type": "integer"
-    }
-  },
-  "required": [
-    "n",
-    "cube"
-  ],
-  "title": "CubeResponse",
-  "type": "object"
-}
    • addedOutput schema / $defs / app__routers__number_utils__CubeResponse
      Added value: +{
+  "properties": {
+    "cube": {
+      "title": "Cube",
+      "type": "integer"
+    },
+    "n": {
+      "title": "N",
+      "type": "integer"
+    }
+  },
+  "required": [
+    "n",
+    "cube"
+  ],
+  "title": "CubeResponse",
+  "type": "object"
+}
    • changedOutput schema / x-fastmcp-top-level-schema
      Previous value: -"CubeResponse"New value: +"app__routers__number_utils__CubeResponse"
  6. First observed

TDQS

C2.9/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full behavioral burden, yet it merely restates the function's output. It discloses nothing about bounds semantics, behavior at n=1 or n=10000, or whether n is 1-indexed; the schema's minimum of 1 is the only hint.

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?

A single five-word sentence with no filler; every word contributes and the core purpose is front-loaded. It is appropriately sized for a trivial math tool, though a brief note on indexing or sibling differentiation could have been added without sacrificing brevity.

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 one-parameter, constant-time computation with an output schema, the description is largely adequate, but the dense sibling list of similar math utilities makes routing ambiguous. The description confirms neither the 1-based interpretation explicitly nor why nth_cube should be preferred over cube or nth_square.

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 100% (n is described as "Which cube number" with min/max), so the baseline is 3. The description adds no parameter-level detail beyond restating that n selects which cube number, providing zero incremental semantic value.

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?

"Get the nth cube number" uses a specific verb and resource, signaling the tool returns the cube value at position n in the sequence. The statement is clear and implicitly separates it from siblings like cube_root and nth_square, though it never explicitly distinguishes it from `cube` (likely n³ computed directly).

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

Usage Guidelines2/5

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

No guidance is given on when to choose this tool over the many overlapping math siblings (cube, cube_root, nth_square, nth_prime). There is no mention of indexing convention, intended domain, or edge-case conditions, so the agent must infer usage from the name and schema.

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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TDQS

C2.3/5.0
Disambiguation2/5

Many tools have overlapping purposes, such as multiple random generators (random_integer, random_number), duplicate hashing functions (hash_md5, md5_checksum), and near-identical tools (compare, compare_2, compare_decimals). The sheer number of tools and lack of clear boundaries make it difficult for an agent to differentiate.

Naming Consistency1/5

Naming is highly inconsistent. There are duplicate tools with different names (camel_case vs to_camel_case, slug vs slugify), arbitrary suffixes like '_2', and mixing of patterns (e.g., generate_password vs password_entropy). No clear convention is followed.

Tool Count1/5

With 572 tools, the server is massively overpopulated for any coherent purpose. It includes trivial endpoints (true_endpoint, null, hello_world) and numerous duplicates, far exceeding a well-scoped utility set.

Completeness2/5

While the server covers many domains (math, strings, dates, colors, etc.), the presence of duplicate and trivial tools indicates a lack of thoughtful curation. There are gaps in basic operations (e.g., no dedicated file or network tools), and many tools are redundant.

Resources