MAL MCP Server

Get a random manga

get_random_manga

Read-only

Discover a random manga with full details for reading suggestions. Use safe-mode filters to exclude adult or ecchi titles when browsing.

Instructions

Return one random manga (full details). Good for discovery / suggestions. No official-API fallback exists for this tool — it always needs Tenrai itself to be reachable.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`sfw`	No	If true, exclude adult/explicit-rated entries (R+ Mild Nudity and up). Defaults to false (no filtering). Note: this alone still allows mainstream, safely-rated shows tagged with the Ecchi genre (fanservice) through — use `sfw_strict` to also exclude those.
`sfw_strict`	No	If true, exclude adult/explicit-rated entries AND anything tagged with the Ecchi genre, even otherwise-mainstream/safely-rated shows. Stricter than `sfw` alone. Defaults to false.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`url`	No
`rank`	No
`type`	No
`score`	No
`title`	No
`genres`	No
`mal_id`	Yes
`status`	No
`themes`	No
`authors`	No
`members`	No
`volumes`	No
`chapters`	No
`external`	No
`moreinfo`	No
`synopsis`	No
`favorites`	No
`image_url`	No
`published`	No
`relations`	No
`scored_by`	No
`background`	No
`popularity`	No
`publishing`	No
`demographics`	No
`title_english`	No
`serializations`	No
`title_japanese`	No
`title_synonyms`	No
`explicit_genres`	No

Schema Changelog

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

Changed5 schema fields changedv0.10.0Aug 24, 2026
- addedOutput schema / properties / moreinfo
```
Added value: +{
+  "type": "string"
+}
```
- addedOutput schema / properties / relations / items / properties / entries / items / additionalProperties
```
Added value: +false
```
- addedOutput schema / properties / relations / items / properties / entries / items / properties
```
Added value: +{
+  "mal_id": {
+    "exclusiveMinimum": 0,
+    "maximum": 9007199254740991,
+    "type": "integer"
+  },
+  "media_type": {
+    "type": "string"
+  },
+  "name": {
+    "type": "string"
+  },
+  "type": {
+    "type": "string"
+  },
+  "url": {
+    "type": "string"
+  }
+}
```
- addedOutput schema / properties / relations / items / properties / entries / items / required
```
Added value: +[
+  "mal_id"
+]
```
- changedOutput schema / properties / relations / items / properties / entries / items / type
```
Previous value: -"string"New value: +"object"
```

Changed29 schema fields changedv0.9.0Jul 30, 2026

addedInput schema / properties / sfw

Added value: +{
+  "description": "If true, exclude adult/explicit-rated entries (R+ Mild Nudity and up). Defaults to false (no filtering). Note: this alone still allows mainstream, safely-rated shows tagged with the Ecchi genre (fanservice) through — use `sfw_strict` to also exclude those.",
+  "type": "boolean"
+}

addedInput schema / properties / sfw_strict

Added value: +{
+  "description": "If true, exclude adult/explicit-rated entries AND anything tagged with the Ecchi genre, even otherwise-mainstream/safely-rated shows. Stricter than `sfw` alone. Defaults to false.",
+  "type": "boolean"
+}

addedOutput schema / properties / chapters / maximum
```
Added value: +9007199254740991
```
addedOutput schema / properties / chapters / minimum
```
Added value: +0
```
changedOutput schema / properties / chapters / type
```
Previous value: -"number"New value: +"integer"
```

addedOutput schema / properties / explicit_genres

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

addedOutput schema / properties / external

Added value: +{
+  "items": {
+    "additionalProperties": false,
+    "properties": {
+      "name": {
+        "type": "string"
+      },
+      "url": {
+        "type": "string"
+      }
+    },
+    "type": "object"
+  },
+  "type": "array"
+}

addedOutput schema / properties / favorites / maximum
```
Added value: +9007199254740991
```
addedOutput schema / properties / favorites / minimum
```
Added value: +0
```
changedOutput schema / properties / favorites / type
```
Previous value: -"number"New value: +"integer"
```
addedOutput schema / properties / mal_id / exclusiveMinimum
```
Added value: +0
```
addedOutput schema / properties / mal_id / maximum
```
Added value: +9007199254740991
```

changedOutput schema / properties / mal_id / type

Previous value: -"number"New value: +"integer"

addedOutput schema / properties / members / maximum
```
Added value: +9007199254740991
```
addedOutput schema / properties / members / minimum
```
Added value: +0
```

changedOutput schema / properties / members / type

Previous value: -"number"New value: +"integer"

addedOutput schema / properties / popularity / exclusiveMinimum
```
Added value: +0
```
addedOutput schema / properties / popularity / maximum
```
Added value: +9007199254740991
```
changedOutput schema / properties / popularity / type
```
Previous value: -"number"New value: +"integer"
```
addedOutput schema / properties / rank / exclusiveMinimum
```
Added value: +0
```
addedOutput schema / properties / rank / maximum
```
Added value: +9007199254740991
```

changedOutput schema / properties / rank / type

Previous value: -"number"New value: +"integer"

addedOutput schema / properties / scored_by / maximum
```
Added value: +9007199254740991
```
addedOutput schema / properties / scored_by / minimum
```
Added value: +0
```
changedOutput schema / properties / scored_by / type
```
Previous value: -"number"New value: +"integer"
```

addedOutput schema / properties / title_synonyms

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

addedOutput schema / properties / volumes / maximum
```
Added value: +9007199254740991
```
addedOutput schema / properties / volumes / minimum
```
Added value: +0
```

changedOutput schema / properties / volumes / type

Previous value: -"number"New value: +"integer"

Changed1 schema field changedv0.8.0Jul 29, 2026
- addedInput schema / additionalProperties
```
Added value: +false
```

Changed2 schema fields changedv0.7.1Jul 22, 2026

changedInput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "additionalProperties": false,
+  "properties": {
+    "authors": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "background": {
+      "type": "string"
+    },
+    "chapters": {
+      "type": "number"
+    },
+    "demographics": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "favorites": {
+      "type": "number"
+    },
+    "genres": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "image_url": {
+      "type": "string"
+    },
+    "mal_id": {
+      "type": "number"
+    },
+    "members": {
+      "type": "number"
+    },
+    "popularity": {
+      "type": "number"
+    },
+    "published": {
+      "type": "string"
+    },
+    "publishing": {
+      "type": "boolean"
+    },
+    "rank": {
+      "type": "number"
+    },
+    "relations": {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "entries": {
+            "items": {
+              "type": "string"
+            },
+            "type": "array"
+          },
+          "relation": {
+            "type": "string"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "score": {
+      "type": "number"
+    },
+    "scored_by": {
+      "type": "number"
+    },
+    "serializations": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "status": {
+      "type": "string"
+    },
+    "synopsis": {
+      "type": "string"
+    },
+    "themes": {
+      "items": {
+        "type": "string"
+      },
+      "type": "array"
+    },
+    "title": {
+      "type": "string"
+    },
+    "title_english": {
+      "type": "string"
+    },
+    "title_japanese": {
+      "type": "string"
+    },
+    "type": {
+      "type": "string"
+    },
+    "url": {
+      "type": "string"
+    },
+    "volumes": {
+      "type": "number"
+    }
+  },
+  "required": [
+    "mal_id"
+  ],
+  "type": "object"
+}

Addedv0.2.0Jun 29, 2026

TDQS

A4.3/5.0

Behavior4/5

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered structurally. The description adds useful behavior beyond the annotations: there is no official-API fallback and the tool always requires the Tenrai service to be reachable. This is meaningful operational detail for an agent to decide whether to rely on the call.

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?

Three sentences with no filler: what the tool returns, when to use it, and an operational caveat. The most important information appears first, and every sentence contributes.

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?

For a simple random-lookup tool with zero required parameters, an output schema, and fully documented optional parameters, the description is complete. It names the use case, clarifies discovery/suggestion purpose, and flags a real availability constraint that is not otherwise visible.

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%, and both parameters are already documented in the schema with rich semantics explaining sfw and sfw_strict. The tool description itself does not add parameter details, but it does not need to because the schema carries the full burden effectively.

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 uses a specific verb and resource: 'Return one random manga (full details).' It clearly distinguishes this from sibling tools like get_random_anime, get_random_character, and get_random_person, and from get_manga/search_manga which require a specific target.

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?

The description states a clear use case: 'Good for discovery / suggestions.' It also gives practical operational guidance about reachability. It does not explicitly name alternatives or exclusion conditions, but the appropriate context is still clear for an agent deciding between random-pick and search-style 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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