feat: Update local agent documentation to reflect changes in user_id and session_id handling; add marketing strategy document; update skills-lock.json with new Remotion best practices; update website subproject commit.

.claude/skills/remotion-best-practices/rules/gifs.md

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+---
+name: gif
+description: Displaying GIFs, APNG, AVIF and WebP in Remotion
+metadata:
+  tags: gif, animation, images, animated, apng, avif, webp
+---
+
+# Using Animated images in Remotion
+
+## Basic usage
+
+Use `<AnimatedImage>` to display a GIF, APNG, AVIF or WebP image synchronized with Remotion's timeline:
+
+```tsx
+import { AnimatedImage, staticFile } from "remotion";
+
+export const MyComposition = () => {
+  return (
+    <AnimatedImage src={staticFile("animation.gif")} width={500} height={500} />
+  );
+};
+```
+
+Remote URLs are also supported (must have CORS enabled):
+
+```tsx
+<AnimatedImage
+  src="https://example.com/animation.gif"
+  width={500}
+  height={500}
+/>
+```
+
+## Sizing and fit
+
+Control how the image fills its container with the `fit` prop:
+
+```tsx
+// Stretch to fill (default)
+<AnimatedImage src={staticFile("animation.gif")} width={500} height={300} fit="fill" />
+
+// Maintain aspect ratio, fit inside container
+<AnimatedImage src={staticFile("animation.gif")} width={500} height={300} fit="contain" />
+
+// Fill container, crop if needed
+<AnimatedImage src={staticFile("animation.gif")} width={500} height={300} fit="cover" />
+```
+
+## Playback speed
+
+Use `playbackRate` to control the animation speed:
+
+```tsx
+<AnimatedImage src={staticFile("animation.gif")} width={500} height={500} playbackRate={2} /> {/* 2x speed */}
+<AnimatedImage src={staticFile("animation.gif")} width={500} height={500} playbackRate={0.5} /> {/* Half speed */}
+```
+
+## Looping behavior
+
+Control what happens when the animation finishes:
+
+```tsx
+// Loop indefinitely (default)
+<AnimatedImage src={staticFile("animation.gif")} width={500} height={500} loopBehavior="loop" />
+
+// Play once, show final frame
+<AnimatedImage src={staticFile("animation.gif")} width={500} height={500} loopBehavior="pause-after-finish" />
+
+// Play once, then clear canvas
+<AnimatedImage src={staticFile("animation.gif")} width={500} height={500} loopBehavior="clear-after-finish" />
+```
+
+## Styling
+
+Use the `style` prop for additional CSS (use `width` and `height` props for sizing):
+
+```tsx
+<AnimatedImage
+  src={staticFile("animation.gif")}
+  width={500}
+  height={500}
+  style={{
+    borderRadius: 20,
+    position: "absolute",
+    top: 100,
+    left: 50,
+  }}
+/>
+```
+
+## Getting GIF duration
+
+Use `getGifDurationInSeconds()` from `@remotion/gif` to get the duration of a GIF.
+
+```bash
+npx remotion add @remotion/gif
+```
+
+```tsx
+import { getGifDurationInSeconds } from "@remotion/gif";
+import { staticFile } from "remotion";
+
+const duration = await getGifDurationInSeconds(staticFile("animation.gif"));
+console.log(duration); // e.g. 2.5
+```
+
+This is useful for setting the composition duration to match the GIF:
+
+```tsx
+import { getGifDurationInSeconds } from "@remotion/gif";
+import { staticFile, CalculateMetadataFunction } from "remotion";
+
+const calculateMetadata: CalculateMetadataFunction = async () => {
+  const duration = await getGifDurationInSeconds(staticFile("animation.gif"));
+  return {
+    durationInFrames: Math.ceil(duration * 30),
+  };
+};
+```
+
+## Alternative
+
+If `<AnimatedImage>` does not work (only supported in Chrome and Firefox), you can use `<Gif>` from `@remotion/gif` instead.
+
+```bash
+npx remotion add @remotion/gif # If project uses npm
+bunx remotion add @remotion/gif # If project uses bun
+yarn remotion add @remotion/gif # If project uses yarn
+pnpm exec remotion add @remotion/gif # If project uses pnpm
+```
+
+```tsx
+import { Gif } from "@remotion/gif";
+import { staticFile } from "remotion";
+
+export const MyComposition = () => {
+  return <Gif src={staticFile("animation.gif")} width={500} height={500} />;
+};
+```
+
+The `<Gif>` component has the same props as `<AnimatedImage>` but only supports GIF files.