---
name: acfun
description: Use DeepSeek Harness's AcFun (A站, acfun.cn) tools to search videos, read video metadata, comment threads, danmaku, the day/week ranking, playable m3u8 URLs and 动态 (moments); also like/unlike, tip bananas, favorite, follow, comment, and interact with moments when the user enabled AcFun write actions. Use when the user asks about AcFun / A 站 videos, wants a video's details, comments or 弹幕, the A 站 ranking, a playable stream URL, a 动态 (moment) or 社区圈 topic, or asks to interact on AcFun.
---

# AcFun tools

Twelve tools talk to acfun.cn through the `dsh-plugin-acfun` bundle. Nine are
anonymous reads; `acfun_interact` and `acfun_post_comment` mutate the configured
account and are disabled unless the user opted in. Login happens in the Harness
Web UI (**Settings → AcFun**, QR code) or through a cookie in the plugin config.

## Video workflow

1. `acfun_search` — keyword search. Pass `sort: "views"` only when the user wants
   popular videos; AcFun returns at most its first 30 results and ignores paging,
   so say so instead of retrying with `page`.
2. `acfun_video` — full metadata for one `acId`. Accepts `42588725`,
   `ac42588725`, or `https://www.acfun.cn/v/ac42588725`.
3. `acfun_comments` — one comment page in floor order; pass
   `page: previous.page + 1` while `hasMore` is true. Comment ids are usable as
   `replyToCommentId`.
4. `acfun_danmaku` — one danmaku batch ordered by in-video position; pass
   `cursor: previous.nextCursor` while it is non-empty.
5. `acfun_rank` — `period: "day" | "week"`, `channelId: 0` for all channels.
6. `acfun_playurl` — m3u8 ladder; name a `quality` such as `"720P"` or omit it
   for the highest. URLs are time-limited, so do not cache them in prose.

## 动态 (moment) workflow

AcFun has **no public 广场 feed**: do not promise a browsable square and do not
invent ids. Reaching moments works like this:

1. `acfun_topic` with a numeric topic id (for example `488` for 教育) — the only
   public discovery surface. It parses the mobile 社区圈 page and returns at most
   15 newest items; only `resourceType: 3` items carry a `momentId`. There is no
   pagination, so say that instead of retrying with a page parameter.
2. `acfun_moment` with that `momentId` (or a
   `https://m.acfun.cn/communityCircle/moment/...` share link) — full text,
   topics, images, author, counts and the canonical share URL.
3. `acfun_moment_comments` — the moment's comment thread; moments use a different
   comment enum than videos, which is why this is a separate tool.
4. Cite the returned `shareUrl`. A moment's `tagList` ids feed `acfun_topic`.

Publishing, deleting, reposting and voting on a 动态 are app-only (signed token);
refuse them and explain, rather than attempting a creative workaround.

## Interaction workflow

`acfun_interact` — video actions `like`, `unlike`, `banana`, `favorite`,
`unfavorite`, `follow`, `unfollow`; moment actions `moment_like`,
`moment_unlike`, `moment_banana`. `acfun_post_comment` posts on a video (`acId`)
or a 动态 (`momentId`). All require `allowWriteActions: true` plus a login.

- Only act when the user explicitly asked for that interaction. Do not "helpfully"
  like, follow, favorite, or comment on something you merely read.
- Before a mutating call, state what will happen and on which video, moment, or
  user. For comments, show the exact text if the user did not already dictate it.
- Make the call at most once. If the result is ambiguous, re-read with
  `acfun_video` / `acfun_comments` / `acfun_moment_comments` instead of repeating
  the mutation.
- Moment writes are newer and less verified than video writes; treat them as
  experimental and never retry blindly.
- `WRITE_DISABLED` means `allowWriteActions` is false; `LOGIN_REQUIRED` means the
  session is missing or expired — point the user to Settings → AcFun and stop.
- `CAPTCHA_REQUIRED` means AcFun wants an interactive verification; ask the user
  to complete it in a browser, then continue later.

## Citing and reporting

- When you use content, cite its `url` / `shareUrl` as a markdown link.
- Prefer the compact text the tools render; do not dump raw JSON.
- Mention the limitations that affect the answer: search cannot paginate, bangumi
  and article pages are unsupported, play URLs expire, 广场 has no public feed.
- Never invent fields the tools did not return. Counts AcFun exposes only as
  formatted text (`likeCountText`, `commentCountText`) must be quoted as text.