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Grinv

MAL MCP Server

Get anime details

get_anime
Read-only

Retrieve complete information for a specific anime using its MyAnimeList ID, covering synopsis, rating, genres, studios, streaming options, external links, alternate titles, and related entries.

Instructions

Get full details for one anime by mal_id: synopsis, score, genres, studios, streaming links, external links (official site, social media), alternate title synonyms, and related entries. moreinfo is a free-text field MAL editors sometimes add (e.g. suggested viewing order for a franchise) — usually absent. Only carries the single main trailer URL — use get_anime_videos for every promo/episode-preview/music video. Obtain the mal_id from search_anime first. sfw/sfw_strict don't affect this anime itself (its id was requested explicitly) — they filter NSFW entries out of its relations list. If Tenrai is unavailable and MAL_CLIENT_ID is set, transparently retries via the official API, which omits producers/licensors/streaming/opening_themes/ending_themes/trailer/favorites/moreinfo/explicit_genres/external (no equivalent fields there) and ignores sfw/sfw_strict entirely.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idYesMyAnimeList numeric ID.
sfwNoIf 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_strictNoIf 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
NameRequiredDescriptionDefault
urlNo
rankNo
typeNo
yearNo
airedNo
scoreNo
titleNo
airingNo
genresNo
mal_idYes
ratingNo
seasonNo
sourceNo
statusNo
themesNo
membersNo
studiosNo
trailerNo
durationNo
episodesNo
externalNo
moreinfoNo
synopsisNo
broadcastNo
favoritesNo
image_urlNo
licensorsNo
producersNo
relationsNo
scored_byNo
streamingNo
backgroundNo
popularityNo
demographicsNo
ending_themesNo
title_englishNo
opening_themesNo
title_japaneseNo
title_synonymsNo
explicit_genresNo
Behavior5/5

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

Annotations already indicate readOnlyHint and openWorldHint. The description adds substantial behavioral context: fallback to official API which omits certain fields, the effect of sfw parameters on relations, and that moreinfo is a free-text field rarely populated.

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 fairly long but every sentence adds value. It could be slightly more structured (e.g., bullet points for the fields), but it is well-organized and free of fluff.

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?

With an output schema present, the description correctly focuses on input parameters, behavioral nuances, and prerequisites. It covers all essential aspects for an AI to use this tool correctly.

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

Parameters5/5

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

Schema covers all parameters with descriptions. The description adds further meaning: id is 'mal_id', sfw/sfw_strict are clarified with details on what they filter and their interaction with relations, and notes they don't affect the requested anime itself.

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 clearly states 'Get full details for one anime by mal_id' and enumerates the specific fields returned (synopsis, score, genres, studios, streaming links, etc.). It differentiates from sibling tools like get_anime_videos and search_anime.

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

Usage Guidelines5/5

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

Explicitly instructs to obtain mal_id from search_anime first, explains the sfw/sfw_strict parameters affect only relations, and notes that moreinfo is usually absent. Also mentions the official API fallback behavior.

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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