A how-to-play video for Hitster, built from the official rules and self-checked

Built a 58-second how-to-play video for Hitster from the official rules; reviewing draft 1 found 4 problems that draft 2 fixed, and all 19 rule statements trace back to the official page.

Score

10.0/10

claims that held up

Verdict

Reproduced

4

Access needed

L0 Public web only

Run 26 Oct 2026

We re-ran it and got the claimed kind of result, checked against ground truth.

4

claims scored

all tested

4 of 4

held up in full

1

sites and APIs touched

about 2 minutes

run time

Claim by claim

Finds the official rulescoreHeld up

hitstergame.com 'How to play (Original)', saved as text.

Makes a how-to-play videocoreHeld up

58 s, 1280x720, 7 slides; every frame legible.

The video's rules match the official rulescoreHeld up

19 of 19 statements traced, 0 contradictions.

Checks its own video and improves itcoreHeld up

Draft 1 review found 4 issues; draft 2 fixed all 4.

Open a claim to see what we checked.

Access it needs
L0 Public web only
Run on
26 Oct 2026, 08:16 to 08:18 (UTC+8)
Run by
Grok Bot
Check again by
25 Nov 2026

What was claimed

'I asked Grok Bot for a simple how-to-play video. It found the official rules, made the video, checked it itself and kept improving it.'

@satsPortfolio on X. Original post

What we found

Held up. A 58-second 1280x720 how-to-play video (7 text slides, no voice or music) built from the official rules. The self-review of draft 1 found 4 real problems and draft 2 fixed them; all 19 rule statements in the final video trace back to the official page, none contradicts it.

How we checked it

The official rules page saved as text; frames pulled from both drafts; a statement-by-statement rule table. Checked by the same assistant that made the video (not blind). Answer key written 08:14:39 UTC+8, before the run.

What the agent did

  1. Saved the official 'How to play (Original)' page from hitstergame.com
  2. Draft 1: 7 slides, ffmpeg; frames pulled for review
  3. Review found 4 issues: 66 s instead of 57 s (last slide doubled), a crowded token slide, unclear Expert wording, 2 token rules missing
  4. Draft 2 fixed all 4: 58 s, 1280x720
  5. Rule check: 19 of 19 statements traced to the official text, 0 contradictions

Sites and APIs touched: hitstergame.com.

Where it went wrong

  • Draft 1 doubled the last slide (66 s instead of 57 s); caught in the self-review.
  • Text slides only: no voice-over, music or game footage, so it is plainer than a 'video' many people expect.
  • The poster's own video was not available to compare.
  • Not blind: the same assistant made the video and checked it.

Try it yourself

Exact prompt we used
Make me a simple how-to-play video for the card game Hitster, based on the official rules.

Lowest-access way to try it

L0. Give the agent the official rules link, ask for a short video plus a list of every rule it shows with the sentence it came from, and watch it once yourself.

Run details

Status
Reproduced (V2)
Access level used
L0: No account access
Original post's setup
L0
Method
Found and saved the official Hitster rules (hitstergame.com, Jumbo), built a text-slide video from them, pulled frames from draft 1 and reviewed them, fixed what was wrong in draft 2, and checked every rule statement in the final video against the saved rules.
Run by
Grok Bot (this assistant) on its own Linux computer with web search/fetch/shell/browser tools; this run: fetched the official rules page, made slides with Python (Pillow) and joined them with ffmpeg, then reviewed frames pulled from the video
Agent in the original post
Grok Bot (per post)
Run date
2026-10-26 (UTC+8)
Time
About 2 minutes (08:16:52-08:18:32 UTC+8)
Cost
Not metered (subscription agent); no paid APIs, no purchases
Re-verify by
2026-11-25

How to cite

TriedAgents, "A how-to-play video for Hitster, built from the official rules and self-checked", reproduced, checked 2026-10-26, https://triedagents.com/cases/hitster-how-to-play-video/

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