TinyFn

random_string

Generate random string(s).

Input Schema

TableJSON Schema

Name	Required	Description	Default
`count`	No	How many strings to generate
`length`	No	Length of string
`charset`	No	Character set: alphanumeric, alpha, numeric, hex, base64	alphanumeric

Output Schema

TableJSON Schema

Name	Required	Description	Default
`count`	No
`length`	Yes
`string`	No
`charset`	Yes
`strings`	No

Schema Changelog

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

Changed3 schema fields changedAug 29, 2026

addedOutput schema / $defs / RandomStringResponse

Added value: +{
+  "properties": {
+    "charset": {
+      "title": "Charset",
+      "type": "string"
+    },
+    "count": {
+      "anyOf": [
+        {
+          "type": "integer"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "Count"
+    },
+    "length": {
+      "title": "Length",
+      "type": "integer"
+    },
+    "string": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "String"
+    },
+    "strings": {
+      "anyOf": [
+        {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "Strings"
+    }
+  },
+  "required": [
+    "length",
+    "charset"
+  ],
+  "title": "RandomStringResponse",
+  "type": "object"
+}

removedOutput schema / $defs / app__routers__generator_utils__RandomStringResponse

Removed value: -{
-  "properties": {
-    "charset": {
-      "title": "Charset",
-      "type": "string"
-    },
-    "count": {
-      "anyOf": [
-        {
-          "type": "integer"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "Count"
-    },
-    "length": {
-      "title": "Length",
-      "type": "integer"
-    },
-    "string": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "String"
-    },
-    "strings": {
-      "anyOf": [
-        {
-          "items": {
-            "type": "string"
-          },
-          "type": "array"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "Strings"
-    }
-  },
-  "required": [
-    "length",
-    "charset"
-  ],
-  "title": "RandomStringResponse",
-  "type": "object"
-}

changedOutput schema / x-fastmcp-top-level-schema

Previous value: -"app__routers__generator_utils__RandomStringResponse"New value: +"RandomStringResponse"

Changed3 schema fields changedAug 29, 2026

removedOutput schema / $defs / RandomStringResponse

Removed value: -{
-  "properties": {
-    "charset": {
-      "title": "Charset",
-      "type": "string"
-    },
-    "count": {
-      "anyOf": [
-        {
-          "type": "integer"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "Count"
-    },
-    "length": {
-      "title": "Length",
-      "type": "integer"
-    },
-    "string": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "String"
-    },
-    "strings": {
-      "anyOf": [
-        {
-          "items": {
-            "type": "string"
-          },
-          "type": "array"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "Strings"
-    }
-  },
-  "required": [
-    "length",
-    "charset"
-  ],
-  "title": "RandomStringResponse",
-  "type": "object"
-}

addedOutput schema / $defs / app__routers__generator_utils__RandomStringResponse

Added value: +{
+  "properties": {
+    "charset": {
+      "title": "Charset",
+      "type": "string"
+    },
+    "count": {
+      "anyOf": [
+        {
+          "type": "integer"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "Count"
+    },
+    "length": {
+      "title": "Length",
+      "type": "integer"
+    },
+    "string": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "String"
+    },
+    "strings": {
+      "anyOf": [
+        {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "Strings"
+    }
+  },
+  "required": [
+    "length",
+    "charset"
+  ],
+  "title": "RandomStringResponse",
+  "type": "object"
+}

changedOutput schema / x-fastmcp-top-level-schema

Previous value: -"RandomStringResponse"New value: +"app__routers__generator_utils__RandomStringResponse"

Changed3 schema fields changedJul 27, 2026

addedOutput schema / $defs / RandomStringResponse

Added value: +{
+  "properties": {
+    "charset": {
+      "title": "Charset",
+      "type": "string"
+    },
+    "count": {
+      "anyOf": [
+        {
+          "type": "integer"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "Count"
+    },
+    "length": {
+      "title": "Length",
+      "type": "integer"
+    },
+    "string": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "String"
+    },
+    "strings": {
+      "anyOf": [
+        {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "Strings"
+    }
+  },
+  "required": [
+    "length",
+    "charset"
+  ],
+  "title": "RandomStringResponse",
+  "type": "object"
+}

removedOutput schema / $defs / app__routers__generator_utils__RandomStringResponse

Removed value: -{
-  "properties": {
-    "charset": {
-      "title": "Charset",
-      "type": "string"
-    },
-    "count": {
-      "anyOf": [
-        {
-          "type": "integer"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "Count"
-    },
-    "length": {
-      "title": "Length",
-      "type": "integer"
-    },
-    "string": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "String"
-    },
-    "strings": {
-      "anyOf": [
-        {
-          "items": {
-            "type": "string"
-          },
-          "type": "array"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "Strings"
-    }
-  },
-  "required": [
-    "length",
-    "charset"
-  ],
-  "title": "RandomStringResponse",
-  "type": "object"
-}

changedOutput schema / x-fastmcp-top-level-schema

Previous value: -"app__routers__generator_utils__RandomStringResponse"New value: +"RandomStringResponse"

Changed3 schema fields changedJul 17, 2026

removedOutput schema / $defs / RandomStringResponse

Removed value: -{
-  "properties": {
-    "charset": {
-      "title": "Charset",
-      "type": "string"
-    },
-    "count": {
-      "anyOf": [
-        {
-          "type": "integer"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "Count"
-    },
-    "length": {
-      "title": "Length",
-      "type": "integer"
-    },
-    "string": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "String"
-    },
-    "strings": {
-      "anyOf": [
-        {
-          "items": {
-            "type": "string"
-          },
-          "type": "array"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "Strings"
-    }
-  },
-  "required": [
-    "length",
-    "charset"
-  ],
-  "title": "RandomStringResponse",
-  "type": "object"
-}

addedOutput schema / $defs / app__routers__generator_utils__RandomStringResponse

Added value: +{
+  "properties": {
+    "charset": {
+      "title": "Charset",
+      "type": "string"
+    },
+    "count": {
+      "anyOf": [
+        {
+          "type": "integer"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "Count"
+    },
+    "length": {
+      "title": "Length",
+      "type": "integer"
+    },
+    "string": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "String"
+    },
+    "strings": {
+      "anyOf": [
+        {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "Strings"
+    }
+  },
+  "required": [
+    "length",
+    "charset"
+  ],
+  "title": "RandomStringResponse",
+  "type": "object"
+}

changedOutput schema / x-fastmcp-top-level-schema

Previous value: -"RandomStringResponse"New value: +"app__routers__generator_utils__RandomStringResponse"

Changed3 schema fields changedJul 13, 2026

addedOutput schema / $defs / RandomStringResponse

Added value: +{
+  "properties": {
+    "charset": {
+      "title": "Charset",
+      "type": "string"
+    },
+    "count": {
+      "anyOf": [
+        {
+          "type": "integer"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "Count"
+    },
+    "length": {
+      "title": "Length",
+      "type": "integer"
+    },
+    "string": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "String"
+    },
+    "strings": {
+      "anyOf": [
+        {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "Strings"
+    }
+  },
+  "required": [
+    "length",
+    "charset"
+  ],
+  "title": "RandomStringResponse",
+  "type": "object"
+}

removedOutput schema / $defs / app__routers__generator_utils__RandomStringResponse

Removed value: -{
-  "properties": {
-    "charset": {
-      "title": "Charset",
-      "type": "string"
-    },
-    "count": {
-      "anyOf": [
-        {
-          "type": "integer"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "Count"
-    },
-    "length": {
-      "title": "Length",
-      "type": "integer"
-    },
-    "string": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "String"
-    },
-    "strings": {
-      "anyOf": [
-        {
-          "items": {
-            "type": "string"
-          },
-          "type": "array"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "Strings"
-    }
-  },
-  "required": [
-    "length",
-    "charset"
-  ],
-  "title": "RandomStringResponse",
-  "type": "object"
-}

changedOutput schema / x-fastmcp-top-level-schema

Previous value: -"app__routers__generator_utils__RandomStringResponse"New value: +"RandomStringResponse"

Changed3 schema fields changedJul 8, 2026

removedOutput schema / $defs / RandomStringResponse

Removed value: -{
-  "properties": {
-    "charset": {
-      "title": "Charset",
-      "type": "string"
-    },
-    "count": {
-      "anyOf": [
-        {
-          "type": "integer"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "Count"
-    },
-    "length": {
-      "title": "Length",
-      "type": "integer"
-    },
-    "string": {
-      "anyOf": [
-        {
-          "type": "string"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "String"
-    },
-    "strings": {
-      "anyOf": [
-        {
-          "items": {
-            "type": "string"
-          },
-          "type": "array"
-        },
-        {
-          "type": "null"
-        }
-      ],
-      "title": "Strings"
-    }
-  },
-  "required": [
-    "length",
-    "charset"
-  ],
-  "title": "RandomStringResponse",
-  "type": "object"
-}

addedOutput schema / $defs / app__routers__generator_utils__RandomStringResponse

Added value: +{
+  "properties": {
+    "charset": {
+      "title": "Charset",
+      "type": "string"
+    },
+    "count": {
+      "anyOf": [
+        {
+          "type": "integer"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "Count"
+    },
+    "length": {
+      "title": "Length",
+      "type": "integer"
+    },
+    "string": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "String"
+    },
+    "strings": {
+      "anyOf": [
+        {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "title": "Strings"
+    }
+  },
+  "required": [
+    "length",
+    "charset"
+  ],
+  "title": "RandomStringResponse",
+  "type": "object"
+}

changedOutput schema / x-fastmcp-top-level-schema

Previous value: -"RandomStringResponse"New value: +"app__routers__generator_utils__RandomStringResponse"

First observedJun 27, 2026

TDQS

C2.6/5.0

Behavior2/5

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only says 'Generate random string(s)' and gives no information about whether the generation is cryptographically secure, whether values are unique, whether the charset choices affect format, or whether the output is a single string or an array. The description adds almost no behavioral context beyond the tool's name.

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?

The description is a single short sentence with no filler words, and it communicates the core action efficiently. It could be slightly more informative by naming the key adjustable parameters, but for a simple utility tool, this is acceptably concise.

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

Completeness2/5

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

Given the large sibling list with many random-generation tools and the absence of annotations, this description is incomplete. It does not explain output format, uniqueness guarantees, charset semantics, or security characteristics. The presence of an output schema may help, but the description alone leaves too much ambiguity for an agent to select and invoke this tool with confidence.

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 schema already documents all three parameters (count, length, charset) with descriptions, and schema coverage is 100%, so the description need not add basic parameter info. However, the description does not explain the relationship between count and length, nor what the accepted charset values produce (e.g., whether base64 output includes padding or is URL-safe). The schema carries the heavy lifting, so a baseline 3 is appropriate.

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

Purpose3/5

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

The description states 'Generate random string(s)' with a clear verb and resource, so an agent can tell this is a string-generation utility. However, it does not distinguish itself from closely related siblings like random_string_2, random_text, random_token, or generate_token, which likely overlap in purpose. With no Title and no mention of parameters like charset or length, the description is minimally clear but not adequately differentiated.

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?

The description provides no guidance on when to use this tool versus alternatives such as random_text, random_password, generate_token, or random_string_2. It does not explain what 'alphanumeric' means relative to other charset options, nor when the count vs length parameters are appropriate. An agent browsing this large sibling list would have no way to decide between this and similar random-generation tools.

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.

random_string

Input Schema

Output Schema

Schema Changelog

TDQS

Glama MCP Gateway

TDQS

Resources