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fix(skills): say a video's embed shows a placeholder until its frame exists #409

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fix(skills): say a video's embed shows a placeholder until its frame exists #409

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67af931
fix(skills): say a video's poster follows the upload
gregberge Oct 29, 2026
3a832cb
fix(skills): say a video's embed shows a placeholder until its frame …
gregberge Oct 29, 2026
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11 changes: 7 additions & 4 deletions skills/argos-upload/SKILL.md
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Expand Up @@ -101,7 +101,10 @@ checkout.png (after)
- For a **video**, it is the **poster frame wrapped in a link** to the share
page. GitHub renders an inline player only for media it hosts itself, so a
`<video>` tag or a bare `.mp4` link pointing at Argos renders as a dead link.
The poster-in-a-link is the form that actually shows something.
The poster-in-a-link is the form that actually shows something. Right after
the upload the image CDN may not have extracted the frame yet: the embed then
shows a placeholder, which turns into the frame by itself once it exists.
Paste it straight away; it never needs updating.

`URL` is the share page, for a human. `File` is the image or video itself, for
you: fetch it when you want to look at what you just uploaded. Use `--json` when
Expand Down Expand Up @@ -253,6 +256,6 @@ broken image.
the H.264 that screen recorders produce; ProRes and some HEVC exports won't play
inline and the viewer gets a download. Export to H.264 if you need playback.
- **Comment size** — the managed pull request comment lists up to 20 media.
- **No waiting** — a media is fully usable the moment the upload finishes. The
poster frame is derived by the CDN on request, so a video's Markdown embed is
correct immediately.
- **No waiting** — a media is fully usable the moment the upload finishes, and
its Markdown is final. A video's poster frame is extracted by the CDN after
the upload, usually within seconds; until then its embed shows a placeholder.
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