Add TikTok video skills (caption-animation, countdown-video, lower-thirds, short-form-video)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011XhxckAYjGMLrLECWuKBzg

.agents/skills/lower-thirds/README.md

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+# Lower Thirds
+
+Build a clean, branded lower third — the name/role caption that lives in the bottom band of the frame — that animates in, holds long enough to read, and exits without stealing the shot. The craft is restraint: a crisp reveal, a strong type hierarchy, correct safe-area placement, and one template that drives a whole roster of speakers. For creators producing interviews, panels, podcasts, and broadcast-style titles.
+
+## When it activates
+
+- "Make an animated lower third" or "add lower thirds."
+- "Create a name tag/name lower third" or "do a speaker name overlay."
+- "Build broadcast titles" or "animate a title/name/role caption."
+- "Template lower thirds across a list of names."
+
+## Example prompts
+
+- "Add a lower third with the speaker's name and role, branded to my colors."
+- "Build a staggered slide-in name plate for a podcast guest."
+- "Template one lower-third design across a roster of 12 panelists."
+
+## What's inside
+
+- `SKILL.md` — enter/exit animation, in/out timing and dwell, safe-area conventions, and brand styling.
+- `references/lower-third-component.md` — a reusable lower-third component.
+
+---
+Part of **[Short-Form Video Skills](../../)** · Built by **[iart.ai](https://iart.ai/?utm_source=github&utm_medium=readme&utm_campaign=tiktok-video-skills&utm_content=skill_footer&utm_term=lower-thirds)** — the AI motion agent for editable, on-brand motion graphics.