Snitch Trail
A golden snitch traces a figure-eight flight path with a trailing shimmer of gold sparkles. First animation built with the Quidditch capture pipeline — transcript + renders + source-history all published to R2/D1 on git push.
intermediate ~2 min
SVG path-following with a 10-orb shimmering trail and flapping wings.
Why this matters offset-path is the cleanest way to do path-following animation on the web. Once you see it, you stop reaching for JS tween libraries for this class of problem.
What you'll learn
- How offset-path: path(…) makes any element follow an arbitrary SVG curve
- Why offset-rotate: auto is the difference between 'sliding' and 'flying' along a path
- How negative animation-delay + mix-blend-mode: screen produces a bright gold-on-dark shimmer from a handful of circles
- How to compose feGaussianBlur into a glow filter you can reuse across elements
Techniques used
You should be comfortable with
- Basic CSS keyframes
- Reading an SVG <path> d-attribute
Nhật ký dựng
Toàn bộ phiên Claude Code. Dùng ← → hoặc click chapter để di chuyển.
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#0 Bash · git fetch origin main 2>&1 | tail -2 git stash push -m "typegen drift" emdash-env.d.ts 2>&1 | tail -1 git checkout -b feat/snitch-trail origin/main 2>&1 | tail -2 git stash pop 2>&1 | tail -1 .claude/hooks/start-animation-build.sh snitch-trail 2>&1 cat .session/active-animation-build
{ "cursor": 0, "ts": "2026-04-16T10:42:37Z", "kind": "tool", "tool": "Bash", "input": { "command": "git fetch origin main 2>&1 | tail -2\ngit stash push -m \"typegen drift\" emdash-env.d.ts 2>&1 | tail -1\ngit checkout -b feat/snitch-trail origin/main 2>&1 | tail -2\ngit stash pop 2>&1 | tail -1\n.claude/hooks/start-animation-build.sh snitch-trail 2>&1\ncat .session/active-animation-build", "description": "Fresh branch + start capture" }, "output": { "stdout": " * branch main -> FETCH_HEAD\n 0faf4b5a..62c76e12 main -> origin/main\nSaved working directory and index state On fix/restore-library-route: typegen drift\nSwitched to a new branch 'feat/snitch-trail'\nbranch 'feat/snitch-trail' set up to track 'origin/main'.\nDropped refs/stash@{0} (93e71c98d4e51459e6f449de7edc950e331f15b6)\nstarted animation build: slug=snitch-trail sessionId=sess-1776336157-21988\n{\"slug\":\"snitch-trail\",\"sessionId\":\"sess-1776336157-21988\",\"startedAt\":\"2026-04-16T10:42:37Z\"}", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} } -
#1 Bash · ls -la /tmp/hooktest-probe 2>/dev/null ; echo "probe create via Bash"
{ "cursor": 1, "ts": "2026-04-16T10:42:42Z", "kind": "tool", "tool": "Bash", "input": { "command": "ls -la /tmp/hooktest-probe 2>/dev/null ; echo \"probe create via Bash\"", "description": "Probe tool call to test capture" }, "output": { "stdout": "probe create via Bash", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} } -
#2 Bash · SESSION_ID=$(jq -r '.sessionId' < .session/active-animation-build) echo "session: $SESSION_ID" echo "---transcript contents---" cat ".session/animation-transcripts/$SESSION_ID.jsonl" 2>&1 | head -20 echo "---line count---" wc -l ".session/animation-transcripts/$SESSION_ID.jsonl"
{ "cursor": 2, "ts": "2026-04-16T10:42:47Z", "kind": "tool", "tool": "Bash", "input": { "command": "SESSION_ID=$(jq -r '.sessionId' < .session/active-animation-build)\necho \"session: $SESSION_ID\"\necho \"---transcript contents---\"\ncat \".session/animation-transcripts/$SESSION_ID.jsonl\" 2>&1 | head -20\necho \"---line count---\"\nwc -l \".session/animation-transcripts/$SESSION_ID.jsonl\"", "description": "Check if transcript captured probe" }, "output": { "stdout": "session: sess-1776336157-21988\n---transcript contents---\n{\"cursor\":0,\"ts\":\"2026-04-16T10:42:37Z\",\"kind\":\"tool\",\"tool\":\"Bash\",\"input\":{\"command\":\"git fetch origin main 2>&1 | tail -2\\ngit stash push -m \\\"typegen drift\\\" emdash-env.d.ts 2>&1 | tail -1\\ngit checkout -b feat/snitch-trail origin/main 2>&1 | tail -2\\ngit stash pop 2>&1 | tail -1\\n.claude/hooks/start-animation-build.sh snitch-trail 2>&1\\ncat .session/active-animation-build\",\"description\":\"Fresh branch + start capture\"},\"output\":{\"stdout\":\" * branch main -> FETCH_HEAD\\n 0faf4b5a..62c76e12 main -> origin/main\\nSaved working directory and index state On fix/restore-library-route: typegen drift\\nSwitched to a new branch 'feat/snitch-trail'\\nbranch 'feat/snitch-trail' set up to track 'origin/main'.\\nDropped refs/stash@{0} (93e71c98d4e51459e6f449de7edc950e331f15b6)\\nstarted animation build: slug=snitch-trail sessionId=sess-1776336157-21988\\n{\\\"slug\\\":\\\"snitch-trail\\\",\\\"sessionId\\\":\\\"sess-1776336157-21988\\\",\\\"startedAt\\\":\\\"2026-04-16T10:42:37Z\\\"}\",\"stderr\":\"\",\"interrupted\":false,\"isImage\":false,\"noOutputExpected\":false},\"postStateChecksum\":{}}\n{\"cursor\":1,\"ts\":\"2026-04-16T10:42:42Z\",\"kind\":\"tool\",\"tool\":\"Bash\",\"input\":{\"command\":\"ls -la /tmp/hooktest-probe 2>/dev/null ; echo \\\"probe create via Bash\\\"\",\"description\":\"Probe tool call to test capture\"},\"output\":{\"stdout\":\"probe create via Bash\",\"stderr\":\"\",\"interrupted\":false,\"isImage\":false,\"noOutputExpected\":false},\"postStateChecksum\":{}}\n---line count---\n 2 .session/animation-transcripts/sess-1776336157-21988.jsonl", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} } -
#3 Read · <repo>/src/animations/placeholder/index.astro
{ "cursor": 3, "ts": "2026-04-16T10:42:59Z", "kind": "tool", "tool": "Read", "input": { "file_path": "<repo>/src/animations/placeholder/index.astro", "limit": 5 }, "output": { "type": "text", "file": { "filePath": "<repo>/src/animations/placeholder/index.astro", "content": "---\n// Placeholder animation — a minimal spinning snitch used to prove the\n// playground's read-path renders end-to-end. Replaced in Plan B.\n---\n", "numLines": 5, "startLine": 1, "totalLines": 68 } }, "postStateChecksum": {} } -
#4 Bash · SESSION_ID=$(jq -r '.sessionId' < .session/active-animation-build) tail -3 ".session/animation-transcripts/$SESSION_ID.jsonl" | jq -c '{cursor, tool: .tool, kind}'
{ "cursor": 4, "ts": "2026-04-16T10:43:00Z", "kind": "tool", "tool": "Bash", "input": { "command": "SESSION_ID=$(jq -r '.sessionId' < .session/active-animation-build)\ntail -3 \".session/animation-transcripts/$SESSION_ID.jsonl\" | jq -c '{cursor, tool: .tool, kind}'", "description": "Check Read captured" }, "output": { "stdout": "{\"cursor\":1,\"tool\":\"Bash\",\"kind\":\"tool\"}\n{\"cursor\":2,\"tool\":\"Bash\",\"kind\":\"tool\"}\n{\"cursor\":3,\"tool\":\"Read\",\"kind\":\"tool\"}", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} } -
#5 Bash · mkdir -p src/animations/snitch-trail
{ "cursor": 5, "ts": "2026-04-16T10:43:15Z", "kind": "tool", "tool": "Bash", "input": { "command": "mkdir -p src/animations/snitch-trail", "description": "Create snitch-trail dir" }, "output": { "stdout": "", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": true }, "postStateChecksum": {} } -
#6 Write · <repo>/src/animations/snitch-trail/index.astro
{ "cursor": 6, "ts": "2026-04-16T10:43:25Z", "kind": "tool", "tool": "Write", "input": { "file_path": "<repo>/src/animations/snitch-trail/index.astro", "content": "---\n// Snitch trail — a golden snitch following an SVG path with a fading\n// gold-sparkle trail. First real animation on the Quidditch playground.\n---\n\n<div class=\"snitch-stage\">\n <svg viewBox=\"0 0 800 450\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby=\"snitch-title\">\n <title id=\"snitch-title\">A golden snitch tracing a figure-eight flight path with a shimmering trail</title>\n\n <defs>\n <path id=\"flight-path\" d=\"M 80 300 Q 200 100, 400 225 T 720 150\" />\n <radialGradient id=\"snitch-gradient\" cx=\"35%\" cy=\"30%\" r=\"60%\">\n <stop offset=\"0%\" stop-color=\"#ffd88a\" />\n <stop offset=\"55%\" stop-color=\"#d4a02a\" />\n <stop offset=\"100%\" stop-color=\"#8a6416\" />\n </radialGradient>\n <filter id=\"glow\" x=\"-50%\" y=\"-50%\" width=\"200%\" height=\"200%\">\n <feGaussianBlur stdDeviation=\"3\" />\n </filter>\n </defs>\n\n <!-- Flight path (subtle guide, disabled by default) -->\n <use href=\"#flight-path\" class=\"path-guide\" />\n\n <!-- Snitch body -->\n <g class=\"snitch\">\n <circle class=\"snitch-glow\" r=\"14\" />\n <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />\n </g>\n </svg>\n</div>\n\n<style>\n .snitch-stage {\n display: block;\n width: 100%;\n aspect-ratio: 16 / 9;\n background: radial-gradient(circle at 50% 50%, #1b1c1d 0%, #08090a 70%);\n }\n\n svg {\n width: 100%;\n height: 100%;\n display: block;\n }\n\n .path-guide {\n fill: none;\n stroke: rgba(212, 160, 42, 0.08);\n stroke-width: 1;\n stroke-dasharray: 2 6;\n }\n\n .snitch {\n /* v1: placed statically at path start. Motion added in v2. */\n transform: translate(80px, 300px);\n }\n\n .snitch-glow {\n fill: #d4a02a;\n filter: url(#glow);\n opacity: 0.5;\n }\n\n .snitch-body {\n stroke: rgba(255, 216, 138, 0.4);\n stroke-width: 0.5;\n }\n</style>\n" }, "output": { "type": "create", "filePath": "<repo>/src/animations/snitch-trail/index.astro", "content": "---\n// Snitch trail — a golden snitch following an SVG path with a fading\n// gold-sparkle trail. First real animation on the Quidditch playground.\n---\n\n<div class=\"snitch-stage\">\n <svg viewBox=\"0 0 800 450\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby=\"snitch-title\">\n <title id=\"snitch-title\">A golden snitch tracing a figure-eight flight path with a shimmering trail</title>\n\n <defs>\n <path id=\"flight-path\" d=\"M 80 300 Q 200 100, 400 225 T 720 150\" />\n <radialGradient id=\"snitch-gradient\" cx=\"35%\" cy=\"30%\" r=\"60%\">\n <stop offset=\"0%\" stop-color=\"#ffd88a\" />\n <stop offset=\"55%\" stop-color=\"#d4a02a\" />\n <stop offset=\"100%\" stop-color=\"#8a6416\" />\n </radialGradient>\n <filter id=\"glow\" x=\"-50%\" y=\"-50%\" width=\"200%\" height=\"200%\">\n <feGaussianBlur stdDeviation=\"3\" />\n </filter>\n </defs>\n\n <!-- Flight path (subtle guide, disabled by default) -->\n <use href=\"#flight-path\" class=\"path-guide\" />\n\n <!-- Snitch body -->\n <g class=\"snitch\">\n <circle class=\"snitch-glow\" r=\"14\" />\n <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />\n </g>\n </svg>\n</div>\n\n<style>\n .snitch-stage {\n display: block;\n width: 100%;\n aspect-ratio: 16 / 9;\n background: radial-gradient(circle at 50% 50%, #1b1c1d 0%, #08090a 70%);\n }\n\n svg {\n width: 100%;\n height: 100%;\n display: block;\n }\n\n .path-guide {\n fill: none;\n stroke: rgba(212, 160, 42, 0.08);\n stroke-width: 1;\n stroke-dasharray: 2 6;\n }\n\n .snitch {\n /* v1: placed statically at path start. Motion added in v2. */\n transform: translate(80px, 300px);\n }\n\n .snitch-glow {\n fill: #d4a02a;\n filter: url(#glow);\n opacity: 0.5;\n }\n\n .snitch-body {\n stroke: rgba(255, 216, 138, 0.4);\n stroke-width: 0.5;\n }\n</style>\n", "structuredPatch": [], "originalFile": null, "userModified": false }, "postStateChecksum": {} } - ▸ v1 static structure
#7 Edit · <repo>/src/pages/animation-preview/[slug].astro
{ "cursor": 7, "ts": "2026-04-16T10:43:40Z", "kind": "tool", "tool": "Edit", "input": { "file_path": "<repo>/src/pages/animation-preview/[slug].astro", "old_string": "import PlaceholderHero from \"../../animations/placeholder/index.astro\";\n\nconst { slug } = Astro.params;\nif (!slug) return new Response(\"Not Found\", { status: 404 });\n\nconst HERO_COMPONENTS = {\n placeholder: PlaceholderHero,\n} as const;", "new_string": "import PlaceholderHero from \"../../animations/placeholder/index.astro\";\nimport SnitchTrailHero from \"../../animations/snitch-trail/index.astro\";\n\nconst { slug } = Astro.params;\nif (!slug) return new Response(\"Not Found\", { status: 404 });\n\nconst HERO_COMPONENTS = {\n placeholder: PlaceholderHero,\n \"snitch-trail\": SnitchTrailHero,\n} as const;", "replace_all": false }, "output": { "filePath": "<repo>/src/pages/animation-preview/[slug].astro", "oldString": "import PlaceholderHero from \"../../animations/placeholder/index.astro\";\n\nconst { slug } = Astro.params;\nif (!slug) return new Response(\"Not Found\", { status: 404 });\n\nconst HERO_COMPONENTS = {\n placeholder: PlaceholderHero,\n} as const;", "newString": "import PlaceholderHero from \"../../animations/placeholder/index.astro\";\nimport SnitchTrailHero from \"../../animations/snitch-trail/index.astro\";\n\nconst { slug } = Astro.params;\nif (!slug) return new Response(\"Not Found\", { status: 404 });\n\nconst HERO_COMPONENTS = {\n placeholder: PlaceholderHero,\n \"snitch-trail\": SnitchTrailHero,\n} as const;", "originalFile": "---\nexport const prerender = false;\n\nimport PlaceholderHero from \"../../animations/placeholder/index.astro\";\n\nconst { slug } = Astro.params;\nif (!slug) return new Response(\"Not Found\", { status: 404 });\n\nconst HERO_COMPONENTS = {\n placeholder: PlaceholderHero,\n} as const;\n\nconst Hero = (HERO_COMPONENTS as Record<string, typeof PlaceholderHero>)[slug];\nif (!Hero) return new Response(`No hero for slug \"${slug}\"`, { status: 404 });\n\n// Bare headless preview route used by Plan B's snap-animation.sh helper.\n// Not meant for public discovery — blocked via robots.\nAstro.response.headers.set(\"cache-control\", \"no-store\");\nAstro.response.headers.set(\"x-robots-tag\", \"noindex, nofollow\");\n---\n\n<!doctype html>\n<html lang=\"en\">\n <head>\n <meta charset=\"utf-8\" />\n <title>{slug} preview</title>\n <meta name=\"robots\" content=\"noindex, nofollow\" />\n <style>\n html, body { margin: 0; padding: 0; background: #08090a; height: 100vh; }\n .stage {\n display: flex;\n align-items: center;\n justify-content: center;\n width: 100vw;\n height: 100vh;\n }\n .stage > * { max-width: min(1080px, 90vw); width: 100%; }\n </style>\n </head>\n <body>\n <main class=\"stage\">\n <Hero />\n </main>\n </body>\n</html>\n", "structuredPatch": [ { "oldStart": 2, "oldLines": 12, "newStart": 2, "newLines": 14, "lines": [ " export const prerender = false;", " ", " import PlaceholderHero from \"../../animations/placeholder/index.astro\";", "+import SnitchTrailHero from \"../../animations/snitch-trail/index.astro\";", " ", " const { slug } = Astro.params;", " if (!slug) return new Response(\"Not Found\", { status: 404 });", " ", " const HERO_COMPONENTS = {", " placeholder: PlaceholderHero,", "+ \"snitch-trail\": SnitchTrailHero,", " } as const;", " ", " const Hero = (HERO_COMPONENTS as Record<string, typeof PlaceholderHero>)[slug];" ] } ], "userModified": false, "replaceAll": false }, "postStateChecksum": {} } -
#8 Bash · # Boot dev server + snap v1 pkill -f "astro dev" 2>&1 ; sleep 3 (bun run dev > /tmp/astro-dev.log 2>&1 &) sleep 15 curl -sS -o /dev/null -w "preview: %{http_code}\n" http://localhost:4321/animation-preview/snitch-trail .claude/hooks/snap-animation.sh snitch-trail 2>&1 | tail -3 ls -la .session/animation-renders/*/ 2>&1 | head -5
{ "cursor": 8, "ts": "2026-04-16T10:44:06Z", "kind": "tool", "tool": "Bash", "input": { "command": "# Boot dev server + snap v1\npkill -f \"astro dev\" 2>&1 ; sleep 3\n(bun run dev > /tmp/astro-dev.log 2>&1 &)\nsleep 15\ncurl -sS -o /dev/null -w \"preview: %{http_code}\\n\" http://localhost:4321/animation-preview/snitch-trail\n.claude/hooks/snap-animation.sh snitch-trail 2>&1 | tail -3\nls -la .session/animation-renders/*/ 2>&1 | head -5", "timeout": 60000, "description": "Boot dev + snap v1" }, "output": { "stdout": "preview: 200\nsnap saved: <repo>/.session/animation-renders/sess-1776336157-21988/cursor-0000008.png\ncursor=8 snap=<repo>/.session/animation-renders/sess-1776336157-21988/cursor-0000008.png\ndrwxr-xr-x@ - deathemperor staff 16 Apr 17:44 .\ndrwxr-xr-x@ - deathemperor staff 16 Apr 17:44 ..\n.rw-r--r--@ 177k deathemperor staff 16 Apr 17:44 cursor-0000008.png", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} } -
#9 Edit · <repo>/src/animations/snitch-trail/index.astro
{ "cursor": 9, "ts": "2026-04-16T10:44:19Z", "kind": "tool", "tool": "Edit", "input": { "file_path": "<repo>/src/animations/snitch-trail/index.astro", "old_string": " .snitch {\n /* v1: placed statically at path start. Motion added in v2. */\n transform: translate(80px, 300px);\n }", "new_string": " .snitch {\n /* v2: follow the flight path. offset-path mirrors the SVG <path>. */\n offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");\n offset-rotate: auto;\n animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;\n }\n\n @keyframes fly {\n 0% { offset-distance: 0%; }\n 45% { offset-distance: 100%; }\n 55% { offset-distance: 100%; }\n 100% { offset-distance: 0%; }\n }", "replace_all": false }, "output": { "filePath": "<repo>/src/animations/snitch-trail/index.astro", "oldString": " .snitch {\n /* v1: placed statically at path start. Motion added in v2. */\n transform: translate(80px, 300px);\n }", "newString": " .snitch {\n /* v2: follow the flight path. offset-path mirrors the SVG <path>. */\n offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");\n offset-rotate: auto;\n animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;\n }\n\n @keyframes fly {\n 0% { offset-distance: 0%; }\n 45% { offset-distance: 100%; }\n 55% { offset-distance: 100%; }\n 100% { offset-distance: 0%; }\n }", "originalFile": "---\n// Snitch trail — a golden snitch following an SVG path with a fading\n// gold-sparkle trail. First real animation on the Quidditch playground.\n---\n\n<div class=\"snitch-stage\">\n <svg viewBox=\"0 0 800 450\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby=\"snitch-title\">\n <title id=\"snitch-title\">A golden snitch tracing a figure-eight flight path with a shimmering trail</title>\n\n <defs>\n <path id=\"flight-path\" d=\"M 80 300 Q 200 100, 400 225 T 720 150\" />\n <radialGradient id=\"snitch-gradient\" cx=\"35%\" cy=\"30%\" r=\"60%\">\n <stop offset=\"0%\" stop-color=\"#ffd88a\" />\n <stop offset=\"55%\" stop-color=\"#d4a02a\" />\n <stop offset=\"100%\" stop-color=\"#8a6416\" />\n </radialGradient>\n <filter id=\"glow\" x=\"-50%\" y=\"-50%\" width=\"200%\" height=\"200%\">\n <feGaussianBlur stdDeviation=\"3\" />\n </filter>\n </defs>\n\n <!-- Flight path (subtle guide, disabled by default) -->\n <use href=\"#flight-path\" class=\"path-guide\" />\n\n <!-- Snitch body -->\n <g class=\"snitch\">\n <circle class=\"snitch-glow\" r=\"14\" />\n <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />\n </g>\n </svg>\n</div>\n\n<style>\n .snitch-stage {\n display: block;\n width: 100%;\n aspect-ratio: 16 / 9;\n background: radial-gradient(circle at 50% 50%, #1b1c1d 0%, #08090a 70%);\n }\n\n svg {\n width: 100%;\n height: 100%;\n display: block;\n }\n\n .path-guide {\n fill: none;\n stroke: rgba(212, 160, 42, 0.08);\n stroke-width: 1;\n stroke-dasharray: 2 6;\n }\n\n .snitch {\n /* v1: placed statically at path start. Motion added in v2. */\n transform: translate(80px, 300px);\n }\n\n .snitch-glow {\n fill: #d4a02a;\n filter: url(#glow);\n opacity: 0.5;\n }\n\n .snitch-body {\n stroke: rgba(255, 216, 138, 0.4);\n stroke-width: 0.5;\n }\n</style>\n", "structuredPatch": [ { "oldStart": 52, "oldLines": 10, "newStart": 52, "newLines": 19, "lines": [ " }", " ", " .snitch {", "- /* v1: placed statically at path start. Motion added in v2. */", "- transform: translate(80px, 300px);", "+ /* v2: follow the flight path. offset-path mirrors the SVG <path>. */", "+ offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");", "+ offset-rotate: auto;", "+ animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;", " }", " ", "+ @keyframes fly {", "+ 0% { offset-distance: 0%; }", "+ 45% { offset-distance: 100%; }", "+ 55% { offset-distance: 100%; }", "+ 100% { offset-distance: 0%; }", "+ }", "+", " .snitch-glow {", " fill: #d4a02a;", " filter: url(#glow);" ] } ], "userModified": false, "replaceAll": false }, "postStateChecksum": {} } - ▸ v2 offset-path flight
#10 Bash · sleep 3 .claude/hooks/snap-animation.sh snitch-trail 2>&1 | tail -2
{ "cursor": 10, "ts": "2026-04-16T10:44:28Z", "kind": "tool", "tool": "Bash", "input": { "command": "sleep 3\n.claude/hooks/snap-animation.sh snitch-trail 2>&1 | tail -2", "description": "Snap v2" }, "output": { "stdout": "snap saved: <repo>/.session/animation-renders/sess-1776336157-21988/cursor-0000010.png\ncursor=10 snap=<repo>/.session/animation-renders/sess-1776336157-21988/cursor-0000010.png", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} } -
#11 Edit · <repo>/src/animations/snitch-trail/index.astro
{ "cursor": 11, "ts": "2026-04-16T10:44:39Z", "kind": "tool", "tool": "Edit", "input": { "file_path": "<repo>/src/animations/snitch-trail/index.astro", "old_string": " <!-- Snitch body -->\n <g class=\"snitch\">\n <circle class=\"snitch-glow\" r=\"14\" />\n <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />\n </g>", "new_string": " <!-- Snitch body -->\n <g class=\"snitch\">\n <circle class=\"snitch-glow\" r=\"14\" />\n <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />\n <g class=\"wing wing-left\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n <g class=\"wing wing-right\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n </g>", "replace_all": false }, "output": { "filePath": "<repo>/src/animations/snitch-trail/index.astro", "oldString": " <!-- Snitch body -->\n <g class=\"snitch\">\n <circle class=\"snitch-glow\" r=\"14\" />\n <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />\n </g>", "newString": " <!-- Snitch body -->\n <g class=\"snitch\">\n <circle class=\"snitch-glow\" r=\"14\" />\n <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />\n <g class=\"wing wing-left\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n <g class=\"wing wing-right\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n </g>", "originalFile": "---\n// Snitch trail — a golden snitch following an SVG path with a fading\n// gold-sparkle trail. First real animation on the Quidditch playground.\n---\n\n<div class=\"snitch-stage\">\n <svg viewBox=\"0 0 800 450\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby=\"snitch-title\">\n <title id=\"snitch-title\">A golden snitch tracing a figure-eight flight path with a shimmering trail</title>\n\n <defs>\n <path id=\"flight-path\" d=\"M 80 300 Q 200 100, 400 225 T 720 150\" />\n <radialGradient id=\"snitch-gradient\" cx=\"35%\" cy=\"30%\" r=\"60%\">\n <stop offset=\"0%\" stop-color=\"#ffd88a\" />\n <stop offset=\"55%\" stop-color=\"#d4a02a\" />\n <stop offset=\"100%\" stop-color=\"#8a6416\" />\n </radialGradient>\n <filter id=\"glow\" x=\"-50%\" y=\"-50%\" width=\"200%\" height=\"200%\">\n <feGaussianBlur stdDeviation=\"3\" />\n </filter>\n </defs>\n\n <!-- Flight path (subtle guide, disabled by default) -->\n <use href=\"#flight-path\" class=\"path-guide\" />\n\n <!-- Snitch body -->\n <g class=\"snitch\">\n <circle class=\"snitch-glow\" r=\"14\" />\n <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />\n </g>\n </svg>\n</div>\n\n<style>\n .snitch-stage {\n display: block;\n width: 100%;\n aspect-ratio: 16 / 9;\n background: radial-gradient(circle at 50% 50%, #1b1c1d 0%, #08090a 70%);\n }\n\n svg {\n width: 100%;\n height: 100%;\n display: block;\n }\n\n .path-guide {\n fill: none;\n stroke: rgba(212, 160, 42, 0.08);\n stroke-width: 1;\n stroke-dasharray: 2 6;\n }\n\n .snitch {\n /* v2: follow the flight path. offset-path mirrors the SVG <path>. */\n offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");\n offset-rotate: auto;\n animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;\n }\n\n @keyframes fly {\n 0% { offset-distance: 0%; }\n 45% { offset-distance: 100%; }\n 55% { offset-distance: 100%; }\n 100% { offset-distance: 0%; }\n }\n\n .snitch-glow {\n fill: #d4a02a;\n filter: url(#glow);\n opacity: 0.5;\n }\n\n .snitch-body {\n stroke: rgba(255, 216, 138, 0.4);\n stroke-width: 0.5;\n }\n</style>\n", "structuredPatch": [ { "oldStart": 26, "oldLines": 6, "newStart": 26, "newLines": 12, "lines": [ " <g class=\"snitch\">", " <circle class=\"snitch-glow\" r=\"14\" />", " <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />", "+ <g class=\"wing wing-left\">", "+ <ellipse rx=\"10\" ry=\"4\" />", "+ </g>", "+ <g class=\"wing wing-right\">", "+ <ellipse rx=\"10\" ry=\"4\" />", "+ </g>", " </g>", " </svg>", " </div>" ] } ], "userModified": false, "replaceAll": false }, "postStateChecksum": {} } -
#12 Edit · <repo>/src/animations/snitch-trail/index.astro
{ "cursor": 12, "ts": "2026-04-16T10:44:43Z", "kind": "tool", "tool": "Edit", "input": { "file_path": "<repo>/src/animations/snitch-trail/index.astro", "old_string": " .snitch-body {\n stroke: rgba(255, 216, 138, 0.4);\n stroke-width: 0.5;\n }", "new_string": " .snitch-body {\n stroke: rgba(255, 216, 138, 0.4);\n stroke-width: 0.5;\n }\n\n .wing ellipse {\n fill: rgba(247, 248, 248, 0.82);\n stroke: rgba(255, 255, 255, 0.4);\n stroke-width: 0.3;\n }\n\n .wing-left { transform: translate(-10px, 0); animation: flap-left 0.16s ease-in-out infinite alternate; }\n .wing-right { transform: translate( 10px, 0); animation: flap-right 0.16s ease-in-out infinite alternate; }\n\n @keyframes flap-left {\n from { transform: translate(-10px, 0) rotate(-22deg) scaleY(0.9); }\n to { transform: translate(-10px, 0) rotate(-6deg) scaleY(1.1); }\n }\n @keyframes flap-right {\n from { transform: translate(10px, 0) rotate(22deg) scaleY(0.9); }\n to { transform: translate(10px, 0) rotate(6deg) scaleY(1.1); }\n }", "replace_all": false }, "output": { "filePath": "<repo>/src/animations/snitch-trail/index.astro", "oldString": " .snitch-body {\n stroke: rgba(255, 216, 138, 0.4);\n stroke-width: 0.5;\n }", "newString": " .snitch-body {\n stroke: rgba(255, 216, 138, 0.4);\n stroke-width: 0.5;\n }\n\n .wing ellipse {\n fill: rgba(247, 248, 248, 0.82);\n stroke: rgba(255, 255, 255, 0.4);\n stroke-width: 0.3;\n }\n\n .wing-left { transform: translate(-10px, 0); animation: flap-left 0.16s ease-in-out infinite alternate; }\n .wing-right { transform: translate( 10px, 0); animation: flap-right 0.16s ease-in-out infinite alternate; }\n\n @keyframes flap-left {\n from { transform: translate(-10px, 0) rotate(-22deg) scaleY(0.9); }\n to { transform: translate(-10px, 0) rotate(-6deg) scaleY(1.1); }\n }\n @keyframes flap-right {\n from { transform: translate(10px, 0) rotate(22deg) scaleY(0.9); }\n to { transform: translate(10px, 0) rotate(6deg) scaleY(1.1); }\n }", "originalFile": "---\n// Snitch trail — a golden snitch following an SVG path with a fading\n// gold-sparkle trail. First real animation on the Quidditch playground.\n---\n\n<div class=\"snitch-stage\">\n <svg viewBox=\"0 0 800 450\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby=\"snitch-title\">\n <title id=\"snitch-title\">A golden snitch tracing a figure-eight flight path with a shimmering trail</title>\n\n <defs>\n <path id=\"flight-path\" d=\"M 80 300 Q 200 100, 400 225 T 720 150\" />\n <radialGradient id=\"snitch-gradient\" cx=\"35%\" cy=\"30%\" r=\"60%\">\n <stop offset=\"0%\" stop-color=\"#ffd88a\" />\n <stop offset=\"55%\" stop-color=\"#d4a02a\" />\n <stop offset=\"100%\" stop-color=\"#8a6416\" />\n </radialGradient>\n <filter id=\"glow\" x=\"-50%\" y=\"-50%\" width=\"200%\" height=\"200%\">\n <feGaussianBlur stdDeviation=\"3\" />\n </filter>\n </defs>\n\n <!-- Flight path (subtle guide, disabled by default) -->\n <use href=\"#flight-path\" class=\"path-guide\" />\n\n <!-- Snitch body -->\n <g class=\"snitch\">\n <circle class=\"snitch-glow\" r=\"14\" />\n <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />\n <g class=\"wing wing-left\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n <g class=\"wing wing-right\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n </g>\n </svg>\n</div>\n\n<style>\n .snitch-stage {\n display: block;\n width: 100%;\n aspect-ratio: 16 / 9;\n background: radial-gradient(circle at 50% 50%, #1b1c1d 0%, #08090a 70%);\n }\n\n svg {\n width: 100%;\n height: 100%;\n display: block;\n }\n\n .path-guide {\n fill: none;\n stroke: rgba(212, 160, 42, 0.08);\n stroke-width: 1;\n stroke-dasharray: 2 6;\n }\n\n .snitch {\n /* v2: follow the flight path. offset-path mirrors the SVG <path>. */\n offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");\n offset-rotate: auto;\n animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;\n }\n\n @keyframes fly {\n 0% { offset-distance: 0%; }\n 45% { offset-distance: 100%; }\n 55% { offset-distance: 100%; }\n 100% { offset-distance: 0%; }\n }\n\n .snitch-glow {\n fill: #d4a02a;\n filter: url(#glow);\n opacity: 0.5;\n }\n\n .snitch-body {\n stroke: rgba(255, 216, 138, 0.4);\n stroke-width: 0.5;\n }\n</style>\n", "structuredPatch": [ { "oldStart": 81, "oldLines": 4, "newStart": 81, "newLines": 22, "lines": [ " stroke: rgba(255, 216, 138, 0.4);", " stroke-width: 0.5;", " }", "+", "+ .wing ellipse {", "+ fill: rgba(247, 248, 248, 0.82);", "+ stroke: rgba(255, 255, 255, 0.4);", "+ stroke-width: 0.3;", "+ }", "+", "+ .wing-left { transform: translate(-10px, 0); animation: flap-left 0.16s ease-in-out infinite alternate; }", "+ .wing-right { transform: translate( 10px, 0); animation: flap-right 0.16s ease-in-out infinite alternate; }", "+", "+ @keyframes flap-left {", "+ from { transform: translate(-10px, 0) rotate(-22deg) scaleY(0.9); }", "+ to { transform: translate(-10px, 0) rotate(-6deg) scaleY(1.1); }", "+ }", "+ @keyframes flap-right {", "+ from { transform: translate(10px, 0) rotate(22deg) scaleY(0.9); }", "+ to { transform: translate(10px, 0) rotate(6deg) scaleY(1.1); }", "+ }", " </style>" ] } ], "userModified": false, "replaceAll": false }, "postStateChecksum": {} } - ▸ v3 flapping wings
#13 Bash · sleep 3 && .claude/hooks/snap-animation.sh snitch-trail 2>&1 | tail -2
{ "cursor": 13, "ts": "2026-04-16T10:44:52Z", "kind": "tool", "tool": "Bash", "input": { "command": "sleep 3 && .claude/hooks/snap-animation.sh snitch-trail 2>&1 | tail -2", "description": "Snap v3" }, "output": { "stdout": "snap saved: <repo>/.session/animation-renders/sess-1776336157-21988/cursor-0000013.png\ncursor=13 snap=<repo>/.session/animation-renders/sess-1776336157-21988/cursor-0000013.png", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} } -
#14 Edit · <repo>/src/animations/snitch-trail/index.astro
{ "cursor": 14, "ts": "2026-04-16T10:45:07Z", "kind": "tool", "tool": "Edit", "input": { "file_path": "<repo>/src/animations/snitch-trail/index.astro", "old_string": " <!-- Flight path (subtle guide, disabled by default) -->\n <use href=\"#flight-path\" class=\"path-guide\" />\n\n <!-- Snitch body -->\n <g class=\"snitch\">", "new_string": " <!-- Flight path (subtle guide, disabled by default) -->\n <use href=\"#flight-path\" class=\"path-guide\" />\n\n <!-- Trail sparkles: same offset-path, staggered delay, fading opacity -->\n <circle class=\"trail trail-1\" r=\"4\" />\n <circle class=\"trail trail-2\" r=\"3\" />\n <circle class=\"trail trail-3\" r=\"2\" />\n <circle class=\"trail trail-4\" r=\"1.5\" />\n <circle class=\"trail trail-5\" r=\"1\" />\n\n <!-- Snitch body -->\n <g class=\"snitch\">", "replace_all": false }, "output": { "filePath": "<repo>/src/animations/snitch-trail/index.astro", "oldString": " <!-- Flight path (subtle guide, disabled by default) -->\n <use href=\"#flight-path\" class=\"path-guide\" />\n\n <!-- Snitch body -->\n <g class=\"snitch\">", "newString": " <!-- Flight path (subtle guide, disabled by default) -->\n <use href=\"#flight-path\" class=\"path-guide\" />\n\n <!-- Trail sparkles: same offset-path, staggered delay, fading opacity -->\n <circle class=\"trail trail-1\" r=\"4\" />\n <circle class=\"trail trail-2\" r=\"3\" />\n <circle class=\"trail trail-3\" r=\"2\" />\n <circle class=\"trail trail-4\" r=\"1.5\" />\n <circle class=\"trail trail-5\" r=\"1\" />\n\n <!-- Snitch body -->\n <g class=\"snitch\">", "originalFile": "---\n// Snitch trail — a golden snitch following an SVG path with a fading\n// gold-sparkle trail. First real animation on the Quidditch playground.\n---\n\n<div class=\"snitch-stage\">\n <svg viewBox=\"0 0 800 450\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby=\"snitch-title\">\n <title id=\"snitch-title\">A golden snitch tracing a figure-eight flight path with a shimmering trail</title>\n\n <defs>\n <path id=\"flight-path\" d=\"M 80 300 Q 200 100, 400 225 T 720 150\" />\n <radialGradient id=\"snitch-gradient\" cx=\"35%\" cy=\"30%\" r=\"60%\">\n <stop offset=\"0%\" stop-color=\"#ffd88a\" />\n <stop offset=\"55%\" stop-color=\"#d4a02a\" />\n <stop offset=\"100%\" stop-color=\"#8a6416\" />\n </radialGradient>\n <filter id=\"glow\" x=\"-50%\" y=\"-50%\" width=\"200%\" height=\"200%\">\n <feGaussianBlur stdDeviation=\"3\" />\n </filter>\n </defs>\n\n <!-- Flight path (subtle guide, disabled by default) -->\n <use href=\"#flight-path\" class=\"path-guide\" />\n\n <!-- Snitch body -->\n <g class=\"snitch\">\n <circle class=\"snitch-glow\" r=\"14\" />\n <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />\n <g class=\"wing wing-left\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n <g class=\"wing wing-right\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n </g>\n </svg>\n</div>\n\n<style>\n .snitch-stage {\n display: block;\n width: 100%;\n aspect-ratio: 16 / 9;\n background: radial-gradient(circle at 50% 50%, #1b1c1d 0%, #08090a 70%);\n }\n\n svg {\n width: 100%;\n height: 100%;\n display: block;\n }\n\n .path-guide {\n fill: none;\n stroke: rgba(212, 160, 42, 0.08);\n stroke-width: 1;\n stroke-dasharray: 2 6;\n }\n\n .snitch {\n /* v2: follow the flight path. offset-path mirrors the SVG <path>. */\n offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");\n offset-rotate: auto;\n animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;\n }\n\n @keyframes fly {\n 0% { offset-distance: 0%; }\n 45% { offset-distance: 100%; }\n 55% { offset-distance: 100%; }\n 100% { offset-distance: 0%; }\n }\n\n .snitch-glow {\n fill: #d4a02a;\n filter: url(#glow);\n opacity: 0.5;\n }\n\n .snitch-body {\n stroke: rgba(255, 216, 138, 0.4);\n stroke-width: 0.5;\n }\n\n .wing ellipse {\n fill: rgba(247, 248, 248, 0.82);\n stroke: rgba(255, 255, 255, 0.4);\n stroke-width: 0.3;\n }\n\n .wing-left { transform: translate(-10px, 0); animation: flap-left 0.16s ease-in-out infinite alternate; }\n .wing-right { transform: translate( 10px, 0); animation: flap-right 0.16s ease-in-out infinite alternate; }\n\n @keyframes flap-left {\n from { transform: translate(-10px, 0) rotate(-22deg) scaleY(0.9); }\n to { transform: translate(-10px, 0) rotate(-6deg) scaleY(1.1); }\n }\n @keyframes flap-right {\n from { transform: translate(10px, 0) rotate(22deg) scaleY(0.9); }\n to { transform: translate(10px, 0) rotate(6deg) scaleY(1.1); }\n }\n</style>\n", "structuredPatch": [ { "oldStart": 22, "oldLines": 6, "newStart": 22, "newLines": 13, "lines": [ " <!-- Flight path (subtle guide, disabled by default) -->", " <use href=\"#flight-path\" class=\"path-guide\" />", " ", "+ <!-- Trail sparkles: same offset-path, staggered delay, fading opacity -->", "+ <circle class=\"trail trail-1\" r=\"4\" />", "+ <circle class=\"trail trail-2\" r=\"3\" />", "+ <circle class=\"trail trail-3\" r=\"2\" />", "+ <circle class=\"trail trail-4\" r=\"1.5\" />", "+ <circle class=\"trail trail-5\" r=\"1\" />", "+", " <!-- Snitch body -->", " <g class=\"snitch\">", " <circle class=\"snitch-glow\" r=\"14\" />" ] } ], "userModified": false, "replaceAll": false }, "postStateChecksum": {} } -
#15 Edit · <repo>/src/animations/snitch-trail/index.astro
{ "cursor": 15, "ts": "2026-04-16T10:45:15Z", "kind": "tool", "tool": "Edit", "input": { "file_path": "<repo>/src/animations/snitch-trail/index.astro", "old_string": " .snitch {\n /* v2: follow the flight path. offset-path mirrors the SVG <path>. */\n offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");\n offset-rotate: auto;\n animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;\n }\n\n @keyframes fly {\n 0% { offset-distance: 0%; }\n 45% { offset-distance: 100%; }\n 55% { offset-distance: 100%; }\n 100% { offset-distance: 0%; }\n }", "new_string": " .snitch,\n .trail {\n /* v2: follow the flight path. offset-path mirrors the SVG <path>. */\n offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");\n animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;\n }\n\n .snitch {\n offset-rotate: auto;\n }\n\n /* Trails: each staggered slightly behind the snitch with decreasing opacity. */\n .trail {\n fill: #ffd88a;\n filter: url(#glow);\n mix-blend-mode: screen;\n }\n .trail-1 { animation-delay: -0.08s; opacity: 0.7; }\n .trail-2 { animation-delay: -0.16s; opacity: 0.55; }\n .trail-3 { animation-delay: -0.24s; opacity: 0.4; }\n .trail-4 { animation-delay: -0.32s; opacity: 0.25; }\n .trail-5 { animation-delay: -0.4s; opacity: 0.15; }\n\n @keyframes fly {\n 0% { offset-distance: 0%; }\n 45% { offset-distance: 100%; }\n 55% { offset-distance: 100%; }\n 100% { offset-distance: 0%; }\n }", "replace_all": false }, "output": { "filePath": "<repo>/src/animations/snitch-trail/index.astro", "oldString": " .snitch {\n /* v2: follow the flight path. offset-path mirrors the SVG <path>. */\n offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");\n offset-rotate: auto;\n animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;\n }\n\n @keyframes fly {\n 0% { offset-distance: 0%; }\n 45% { offset-distance: 100%; }\n 55% { offset-distance: 100%; }\n 100% { offset-distance: 0%; }\n }", "newString": " .snitch,\n .trail {\n /* v2: follow the flight path. offset-path mirrors the SVG <path>. */\n offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");\n animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;\n }\n\n .snitch {\n offset-rotate: auto;\n }\n\n /* Trails: each staggered slightly behind the snitch with decreasing opacity. */\n .trail {\n fill: #ffd88a;\n filter: url(#glow);\n mix-blend-mode: screen;\n }\n .trail-1 { animation-delay: -0.08s; opacity: 0.7; }\n .trail-2 { animation-delay: -0.16s; opacity: 0.55; }\n .trail-3 { animation-delay: -0.24s; opacity: 0.4; }\n .trail-4 { animation-delay: -0.32s; opacity: 0.25; }\n .trail-5 { animation-delay: -0.4s; opacity: 0.15; }\n\n @keyframes fly {\n 0% { offset-distance: 0%; }\n 45% { offset-distance: 100%; }\n 55% { offset-distance: 100%; }\n 100% { offset-distance: 0%; }\n }", "originalFile": "---\n// Snitch trail — a golden snitch following an SVG path with a fading\n// gold-sparkle trail. First real animation on the Quidditch playground.\n---\n\n<div class=\"snitch-stage\">\n <svg viewBox=\"0 0 800 450\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby=\"snitch-title\">\n <title id=\"snitch-title\">A golden snitch tracing a figure-eight flight path with a shimmering trail</title>\n\n <defs>\n <path id=\"flight-path\" d=\"M 80 300 Q 200 100, 400 225 T 720 150\" />\n <radialGradient id=\"snitch-gradient\" cx=\"35%\" cy=\"30%\" r=\"60%\">\n <stop offset=\"0%\" stop-color=\"#ffd88a\" />\n <stop offset=\"55%\" stop-color=\"#d4a02a\" />\n <stop offset=\"100%\" stop-color=\"#8a6416\" />\n </radialGradient>\n <filter id=\"glow\" x=\"-50%\" y=\"-50%\" width=\"200%\" height=\"200%\">\n <feGaussianBlur stdDeviation=\"3\" />\n </filter>\n </defs>\n\n <!-- Flight path (subtle guide, disabled by default) -->\n <use href=\"#flight-path\" class=\"path-guide\" />\n\n <!-- Trail sparkles: same offset-path, staggered delay, fading opacity -->\n <circle class=\"trail trail-1\" r=\"4\" />\n <circle class=\"trail trail-2\" r=\"3\" />\n <circle class=\"trail trail-3\" r=\"2\" />\n <circle class=\"trail trail-4\" r=\"1.5\" />\n <circle class=\"trail trail-5\" r=\"1\" />\n\n <!-- Snitch body -->\n <g class=\"snitch\">\n <circle class=\"snitch-glow\" r=\"14\" />\n <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />\n <g class=\"wing wing-left\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n <g class=\"wing wing-right\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n </g>\n </svg>\n</div>\n\n<style>\n .snitch-stage {\n display: block;\n width: 100%;\n aspect-ratio: 16 / 9;\n background: radial-gradient(circle at 50% 50%, #1b1c1d 0%, #08090a 70%);\n }\n\n svg {\n width: 100%;\n height: 100%;\n display: block;\n }\n\n .path-guide {\n fill: none;\n stroke: rgba(212, 160, 42, 0.08);\n stroke-width: 1;\n stroke-dasharray: 2 6;\n }\n\n .snitch {\n /* v2: follow the flight path. offset-path mirrors the SVG <path>. */\n offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");\n offset-rotate: auto;\n animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;\n }\n\n @keyframes fly {\n 0% { offset-distance: 0%; }\n 45% { offset-distance: 100%; }\n 55% { offset-distance: 100%; }\n 100% { offset-distance: 0%; }\n }\n\n .snitch-glow {\n fill: #d4a02a;\n filter: url(#glow);\n opacity: 0.5;\n }\n\n .snitch-body {\n stroke: rgba(255, 216, 138, 0.4);\n stroke-width: 0.5;\n }\n\n .wing ellipse {\n fill: rgba(247, 248, 248, 0.82);\n stroke: rgba(255, 255, 255, 0.4);\n stroke-width: 0.3;\n }\n\n .wing-left { transform: translate(-10px, 0); animation: flap-left 0.16s ease-in-out infinite alternate; }\n .wing-right { transform: translate( 10px, 0); animation: flap-right 0.16s ease-in-out infinite alternate; }\n\n @keyframes flap-left {\n from { transform: translate(-10px, 0) rotate(-22deg) scaleY(0.9); }\n to { transform: translate(-10px, 0) rotate(-6deg) scaleY(1.1); }\n }\n @keyframes flap-right {\n from { transform: translate(10px, 0) rotate(22deg) scaleY(0.9); }\n to { transform: translate(10px, 0) rotate(6deg) scaleY(1.1); }\n }\n</style>\n", "structuredPatch": [ { "oldStart": 64, "oldLines": 13, "newStart": 64, "newLines": 29, "lines": [ " stroke-dasharray: 2 6;", " }", " ", "- .snitch {", "+ .snitch,", "+ .trail {", " /* v2: follow the flight path. offset-path mirrors the SVG <path>. */", " offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");", "- offset-rotate: auto;", " animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;", " }", " ", "+ .snitch {", "+ offset-rotate: auto;", "+ }", "+", "+ /* Trails: each staggered slightly behind the snitch with decreasing opacity. */", "+ .trail {", "+ fill: #ffd88a;", "+ filter: url(#glow);", "+ mix-blend-mode: screen;", "+ }", "+ .trail-1 { animation-delay: -0.08s; opacity: 0.7; }", "+ .trail-2 { animation-delay: -0.16s; opacity: 0.55; }", "+ .trail-3 { animation-delay: -0.24s; opacity: 0.4; }", "+ .trail-4 { animation-delay: -0.32s; opacity: 0.25; }", "+ .trail-5 { animation-delay: -0.4s; opacity: 0.15; }", "+", " @keyframes fly {", " 0% { offset-distance: 0%; }", " 45% { offset-distance: 100%; }" ] } ], "userModified": false, "replaceAll": false }, "postStateChecksum": {} } - ▸ v4 gold trail sparkles
#16 Bash · sleep 3 && .claude/hooks/snap-animation.sh snitch-trail 2>&1 | tail -2
{ "cursor": 16, "ts": "2026-04-16T10:45:24Z", "kind": "tool", "tool": "Bash", "input": { "command": "sleep 3 && .claude/hooks/snap-animation.sh snitch-trail 2>&1 | tail -2", "description": "Snap v4" }, "output": { "stdout": "snap saved: <repo>/.session/animation-renders/sess-1776336157-21988/cursor-0000016.png\ncursor=16 snap=<repo>/.session/animation-renders/sess-1776336157-21988/cursor-0000016.png", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} } -
#17 Edit · <repo>/src/animations/snitch-trail/index.astro
{ "cursor": 17, "ts": "2026-04-16T10:45:40Z", "kind": "tool", "tool": "Edit", "input": { "file_path": "<repo>/src/animations/snitch-trail/index.astro", "old_string": " .trail-1 { animation-delay: -0.08s; opacity: 0.7; }\n .trail-2 { animation-delay: -0.16s; opacity: 0.55; }\n .trail-3 { animation-delay: -0.24s; opacity: 0.4; }\n .trail-4 { animation-delay: -0.32s; opacity: 0.25; }\n .trail-5 { animation-delay: -0.4s; opacity: 0.15; }", "new_string": " .trail-1 { animation-delay: -0.12s; opacity: 0.7; }\n .trail-2 { animation-delay: -0.24s; opacity: 0.55; }\n .trail-3 { animation-delay: -0.36s; opacity: 0.4; }\n .trail-4 { animation-delay: -0.48s; opacity: 0.25; }\n .trail-5 { animation-delay: -0.6s; opacity: 0.15; }", "replace_all": false }, "output": { "filePath": "<repo>/src/animations/snitch-trail/index.astro", "oldString": " .trail-1 { animation-delay: -0.08s; opacity: 0.7; }\n .trail-2 { animation-delay: -0.16s; opacity: 0.55; }\n .trail-3 { animation-delay: -0.24s; opacity: 0.4; }\n .trail-4 { animation-delay: -0.32s; opacity: 0.25; }\n .trail-5 { animation-delay: -0.4s; opacity: 0.15; }", "newString": " .trail-1 { animation-delay: -0.12s; opacity: 0.7; }\n .trail-2 { animation-delay: -0.24s; opacity: 0.55; }\n .trail-3 { animation-delay: -0.36s; opacity: 0.4; }\n .trail-4 { animation-delay: -0.48s; opacity: 0.25; }\n .trail-5 { animation-delay: -0.6s; opacity: 0.15; }", "originalFile": "---\n// Snitch trail — a golden snitch following an SVG path with a fading\n// gold-sparkle trail. First real animation on the Quidditch playground.\n---\n\n<div class=\"snitch-stage\">\n <svg viewBox=\"0 0 800 450\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby=\"snitch-title\">\n <title id=\"snitch-title\">A golden snitch tracing a figure-eight flight path with a shimmering trail</title>\n\n <defs>\n <path id=\"flight-path\" d=\"M 80 300 Q 200 100, 400 225 T 720 150\" />\n <radialGradient id=\"snitch-gradient\" cx=\"35%\" cy=\"30%\" r=\"60%\">\n <stop offset=\"0%\" stop-color=\"#ffd88a\" />\n <stop offset=\"55%\" stop-color=\"#d4a02a\" />\n <stop offset=\"100%\" stop-color=\"#8a6416\" />\n </radialGradient>\n <filter id=\"glow\" x=\"-50%\" y=\"-50%\" width=\"200%\" height=\"200%\">\n <feGaussianBlur stdDeviation=\"3\" />\n </filter>\n </defs>\n\n <!-- Flight path (subtle guide, disabled by default) -->\n <use href=\"#flight-path\" class=\"path-guide\" />\n\n <!-- Trail sparkles: same offset-path, staggered delay, fading opacity -->\n <circle class=\"trail trail-1\" r=\"4\" />\n <circle class=\"trail trail-2\" r=\"3\" />\n <circle class=\"trail trail-3\" r=\"2\" />\n <circle class=\"trail trail-4\" r=\"1.5\" />\n <circle class=\"trail trail-5\" r=\"1\" />\n\n <!-- Snitch body -->\n <g class=\"snitch\">\n <circle class=\"snitch-glow\" r=\"14\" />\n <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />\n <g class=\"wing wing-left\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n <g class=\"wing wing-right\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n </g>\n </svg>\n</div>\n\n<style>\n .snitch-stage {\n display: block;\n width: 100%;\n aspect-ratio: 16 / 9;\n background: radial-gradient(circle at 50% 50%, #1b1c1d 0%, #08090a 70%);\n }\n\n svg {\n width: 100%;\n height: 100%;\n display: block;\n }\n\n .path-guide {\n fill: none;\n stroke: rgba(212, 160, 42, 0.08);\n stroke-width: 1;\n stroke-dasharray: 2 6;\n }\n\n .snitch,\n .trail {\n /* v2: follow the flight path. offset-path mirrors the SVG <path>. */\n offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");\n animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;\n }\n\n .snitch {\n offset-rotate: auto;\n }\n\n /* Trails: each staggered slightly behind the snitch with decreasing opacity. */\n .trail {\n fill: #ffd88a;\n filter: url(#glow);\n mix-blend-mode: screen;\n }\n .trail-1 { animation-delay: -0.08s; opacity: 0.7; }\n .trail-2 { animation-delay: -0.16s; opacity: 0.55; }\n .trail-3 { animation-delay: -0.24s; opacity: 0.4; }\n .trail-4 { animation-delay: -0.32s; opacity: 0.25; }\n .trail-5 { animation-delay: -0.4s; opacity: 0.15; }\n\n @keyframes fly {\n 0% { offset-distance: 0%; }\n 45% { offset-distance: 100%; }\n 55% { offset-distance: 100%; }\n 100% { offset-distance: 0%; }\n }\n\n .snitch-glow {\n fill: #d4a02a;\n filter: url(#glow);\n opacity: 0.5;\n }\n\n .snitch-body {\n stroke: rgba(255, 216, 138, 0.4);\n stroke-width: 0.5;\n }\n\n .wing ellipse {\n fill: rgba(247, 248, 248, 0.82);\n stroke: rgba(255, 255, 255, 0.4);\n stroke-width: 0.3;\n }\n\n .wing-left { transform: translate(-10px, 0); animation: flap-left 0.16s ease-in-out infinite alternate; }\n .wing-right { transform: translate( 10px, 0); animation: flap-right 0.16s ease-in-out infinite alternate; }\n\n @keyframes flap-left {\n from { transform: translate(-10px, 0) rotate(-22deg) scaleY(0.9); }\n to { transform: translate(-10px, 0) rotate(-6deg) scaleY(1.1); }\n }\n @keyframes flap-right {\n from { transform: translate(10px, 0) rotate(22deg) scaleY(0.9); }\n to { transform: translate(10px, 0) rotate(6deg) scaleY(1.1); }\n }\n</style>\n", "structuredPatch": [ { "oldStart": 81, "oldLines": 11, "newStart": 81, "newLines": 11, "lines": [ " filter: url(#glow);", " mix-blend-mode: screen;", " }", "- .trail-1 { animation-delay: -0.08s; opacity: 0.7; }", "- .trail-2 { animation-delay: -0.16s; opacity: 0.55; }", "- .trail-3 { animation-delay: -0.24s; opacity: 0.4; }", "- .trail-4 { animation-delay: -0.32s; opacity: 0.25; }", "- .trail-5 { animation-delay: -0.4s; opacity: 0.15; }", "+ .trail-1 { animation-delay: -0.12s; opacity: 0.7; }", "+ .trail-2 { animation-delay: -0.24s; opacity: 0.55; }", "+ .trail-3 { animation-delay: -0.36s; opacity: 0.4; }", "+ .trail-4 { animation-delay: -0.48s; opacity: 0.25; }", "+ .trail-5 { animation-delay: -0.6s; opacity: 0.15; }", " ", " @keyframes fly {", " 0% { offset-distance: 0%; }" ] } ], "userModified": false, "replaceAll": false }, "postStateChecksum": {} } -
#18 Edit · <repo>/src/animations/snitch-trail/index.astro
{ "cursor": 18, "ts": "2026-04-16T10:45:45Z", "kind": "tool", "tool": "Edit", "input": { "file_path": "<repo>/src/animations/snitch-trail/index.astro", "old_string": " @keyframes flap-right {\n from { transform: translate(10px, 0) rotate(22deg) scaleY(0.9); }\n to { transform: translate(10px, 0) rotate(6deg) scaleY(1.1); }\n }", "new_string": " @keyframes flap-right {\n from { transform: translate(10px, 0) rotate(22deg) scaleY(0.9); }\n to { transform: translate(10px, 0) rotate(6deg) scaleY(1.1); }\n }\n\n /* Accessibility: freeze motion for users who ask for reduced motion.\n Snitch sits mid-path so the stage still reads as \"snitch in flight.\" */\n @media (prefers-reduced-motion: reduce) {\n .snitch, .trail, .wing-left, .wing-right {\n animation: none;\n }\n .snitch {\n offset-distance: 50%;\n }\n .trail {\n display: none;\n }\n }", "replace_all": false }, "output": { "filePath": "<repo>/src/animations/snitch-trail/index.astro", "oldString": " @keyframes flap-right {\n from { transform: translate(10px, 0) rotate(22deg) scaleY(0.9); }\n to { transform: translate(10px, 0) rotate(6deg) scaleY(1.1); }\n }", "newString": " @keyframes flap-right {\n from { transform: translate(10px, 0) rotate(22deg) scaleY(0.9); }\n to { transform: translate(10px, 0) rotate(6deg) scaleY(1.1); }\n }\n\n /* Accessibility: freeze motion for users who ask for reduced motion.\n Snitch sits mid-path so the stage still reads as \"snitch in flight.\" */\n @media (prefers-reduced-motion: reduce) {\n .snitch, .trail, .wing-left, .wing-right {\n animation: none;\n }\n .snitch {\n offset-distance: 50%;\n }\n .trail {\n display: none;\n }\n }", "originalFile": "---\n// Snitch trail — a golden snitch following an SVG path with a fading\n// gold-sparkle trail. First real animation on the Quidditch playground.\n---\n\n<div class=\"snitch-stage\">\n <svg viewBox=\"0 0 800 450\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby=\"snitch-title\">\n <title id=\"snitch-title\">A golden snitch tracing a figure-eight flight path with a shimmering trail</title>\n\n <defs>\n <path id=\"flight-path\" d=\"M 80 300 Q 200 100, 400 225 T 720 150\" />\n <radialGradient id=\"snitch-gradient\" cx=\"35%\" cy=\"30%\" r=\"60%\">\n <stop offset=\"0%\" stop-color=\"#ffd88a\" />\n <stop offset=\"55%\" stop-color=\"#d4a02a\" />\n <stop offset=\"100%\" stop-color=\"#8a6416\" />\n </radialGradient>\n <filter id=\"glow\" x=\"-50%\" y=\"-50%\" width=\"200%\" height=\"200%\">\n <feGaussianBlur stdDeviation=\"3\" />\n </filter>\n </defs>\n\n <!-- Flight path (subtle guide, disabled by default) -->\n <use href=\"#flight-path\" class=\"path-guide\" />\n\n <!-- Trail sparkles: same offset-path, staggered delay, fading opacity -->\n <circle class=\"trail trail-1\" r=\"4\" />\n <circle class=\"trail trail-2\" r=\"3\" />\n <circle class=\"trail trail-3\" r=\"2\" />\n <circle class=\"trail trail-4\" r=\"1.5\" />\n <circle class=\"trail trail-5\" r=\"1\" />\n\n <!-- Snitch body -->\n <g class=\"snitch\">\n <circle class=\"snitch-glow\" r=\"14\" />\n <circle class=\"snitch-body\" r=\"9\" fill=\"url(#snitch-gradient)\" />\n <g class=\"wing wing-left\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n <g class=\"wing wing-right\">\n <ellipse rx=\"10\" ry=\"4\" />\n </g>\n </g>\n </svg>\n</div>\n\n<style>\n .snitch-stage {\n display: block;\n width: 100%;\n aspect-ratio: 16 / 9;\n background: radial-gradient(circle at 50% 50%, #1b1c1d 0%, #08090a 70%);\n }\n\n svg {\n width: 100%;\n height: 100%;\n display: block;\n }\n\n .path-guide {\n fill: none;\n stroke: rgba(212, 160, 42, 0.08);\n stroke-width: 1;\n stroke-dasharray: 2 6;\n }\n\n .snitch,\n .trail {\n /* v2: follow the flight path. offset-path mirrors the SVG <path>. */\n offset-path: path(\"M 80 300 Q 200 100, 400 225 T 720 150\");\n animation: fly 7s cubic-bezier(0.42, 0, 0.58, 1) infinite;\n }\n\n .snitch {\n offset-rotate: auto;\n }\n\n /* Trails: each staggered slightly behind the snitch with decreasing opacity. */\n .trail {\n fill: #ffd88a;\n filter: url(#glow);\n mix-blend-mode: screen;\n }\n .trail-1 { animation-delay: -0.12s; opacity: 0.7; }\n .trail-2 { animation-delay: -0.24s; opacity: 0.55; }\n .trail-3 { animation-delay: -0.36s; opacity: 0.4; }\n .trail-4 { animation-delay: -0.48s; opacity: 0.25; }\n .trail-5 { animation-delay: -0.6s; opacity: 0.15; }\n\n @keyframes fly {\n 0% { offset-distance: 0%; }\n 45% { offset-distance: 100%; }\n 55% { offset-distance: 100%; }\n 100% { offset-distance: 0%; }\n }\n\n .snitch-glow {\n fill: #d4a02a;\n filter: url(#glow);\n opacity: 0.5;\n }\n\n .snitch-body {\n stroke: rgba(255, 216, 138, 0.4);\n stroke-width: 0.5;\n }\n\n .wing ellipse {\n fill: rgba(247, 248, 248, 0.82);\n stroke: rgba(255, 255, 255, 0.4);\n stroke-width: 0.3;\n }\n\n .wing-left { transform: translate(-10px, 0); animation: flap-left 0.16s ease-in-out infinite alternate; }\n .wing-right { transform: translate( 10px, 0); animation: flap-right 0.16s ease-in-out infinite alternate; }\n\n @keyframes flap-left {\n from { transform: translate(-10px, 0) rotate(-22deg) scaleY(0.9); }\n to { transform: translate(-10px, 0) rotate(-6deg) scaleY(1.1); }\n }\n @keyframes flap-right {\n from { transform: translate(10px, 0) rotate(22deg) scaleY(0.9); }\n to { transform: translate(10px, 0) rotate(6deg) scaleY(1.1); }\n }\n</style>\n", "structuredPatch": [ { "oldStart": 122, "oldLines": 4, "newStart": 122, "newLines": 18, "lines": [ " from { transform: translate(10px, 0) rotate(22deg) scaleY(0.9); }", " to { transform: translate(10px, 0) rotate(6deg) scaleY(1.1); }", " }", "+", "+ /* Accessibility: freeze motion for users who ask for reduced motion.", "+ Snitch sits mid-path so the stage still reads as \"snitch in flight.\" */", "+ @media (prefers-reduced-motion: reduce) {", "+ .snitch, .trail, .wing-left, .wing-right {", "+ animation: none;", "+ }", "+ .snitch {", "+ offset-distance: 50%;", "+ }", "+ .trail {", "+ display: none;", "+ }", "+ }", " </style>" ] } ], "userModified": false, "replaceAll": false }, "postStateChecksum": {} } - ▸ v5 a11y + trail polish
#19 Bash · sleep 3 && .claude/hooks/snap-animation.sh snitch-trail 2>&1 | tail -2
{ "cursor": 19, "ts": "2026-04-16T10:45:54Z", "kind": "tool", "tool": "Bash", "input": { "command": "sleep 3 && .claude/hooks/snap-animation.sh snitch-trail 2>&1 | tail -2", "description": "Snap v5 final" }, "output": { "stdout": "snap saved: <repo>/.session/animation-renders/sess-1776336157-21988/cursor-0000019.png\ncursor=19 snap=<repo>/.session/animation-renders/sess-1776336157-21988/cursor-0000019.png", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} } -
#20 Edit · <repo>/src/pages/hogwarts/quidditch/[slug].astro
{ "cursor": 20, "ts": "2026-04-16T10:46:04Z", "kind": "tool", "tool": "Edit", "input": { "file_path": "<repo>/src/pages/hogwarts/quidditch/[slug].astro", "old_string": "import PlaceholderHero from \"../../../animations/placeholder/index.astro\";", "new_string": "import PlaceholderHero from \"../../../animations/placeholder/index.astro\";\nimport SnitchTrailHero from \"../../../animations/snitch-trail/index.astro\";", "replace_all": false }, "output": { "filePath": "<repo>/src/pages/hogwarts/quidditch/[slug].astro", "oldString": "import PlaceholderHero from \"../../../animations/placeholder/index.astro\";", "newString": "import PlaceholderHero from \"../../../animations/placeholder/index.astro\";\nimport SnitchTrailHero from \"../../../animations/snitch-trail/index.astro\";", "originalFile": "---\nexport const prerender = false;\n\nimport Base from \"../../../layouts/Base.astro\";\nimport { getEmDashEntry } from \"emdash\";\nimport { getCurrentLang } from \"../../../utils/lang\";\nimport { loadFromR2 } from \"../../../lib/animations/load-from-r2.ts\";\nimport RawViewer from \"../../../components/animations/RawViewer.astro\";\nimport { env } from \"cloudflare:workers\";\n\nimport PlaceholderHero from \"../../../animations/placeholder/index.astro\";\n\ninterface AnimationData {\n title: string;\n description?: string;\n tags?: string[];\n hero_component?: string;\n primary_session_id?: string;\n language?: string;\n}\n\nconst { slug } = Astro.params;\nif (!slug) return Astro.redirect(\"/hogwarts/quidditch/\");\n\nconst currentLang = getCurrentLang(Astro);\nconst isVi = currentLang === \"vi\";\n\nconst entryResult = await getEmDashEntry(\"animations\" as never, slug, { locale: \"en\" } as never);\nconst entry = (entryResult as unknown as { entry?: { id: string; data: AnimationData }; cacheHint?: unknown }).entry;\nconst cacheHint = (entryResult as unknown as { cacheHint?: unknown }).cacheHint;\nif (!entry) return new Response(\"Not Found\", { status: 404 });\nif (cacheHint) Astro.cache.set(cacheHint as never);\n\n// Plan B: R2-backed loader queries animation_sessions in D1, fetches the\n// latest published transcript.jsonl.gz from R2 MEDIA, and returns the same\n// shape the fixture did. Falls back to the on-disk fixture when R2 has no\n// data yet — preserves the placeholder during rollout.\nconst fixture = await loadFromR2(\n slug,\n env as Parameters<typeof loadFromR2>[1],\n);\n\n// Hero component registry — explicit map. Astro can't dynamically import\n// user-authored components from a runtime-computed path while keeping\n// tree-shaking correct.\nconst HERO_COMPONENTS = {\n placeholder: PlaceholderHero,\n} as const;\n\nconst Hero = (HERO_COMPONENTS as Record<string, typeof PlaceholderHero>)[slug];\n---\n\n<Base\n title={`${entry.data.title} — Quidditch`}\n description={entry.data.description ?? \"Animation playground artifact\"}\n breadcrumbs={[\n { label: \"Hogwarts\", href: \"/\" },\n { label: isVi ? \"Sân Quidditch\" : \"Quidditch Pitch\", href: \"/hogwarts/quidditch/\" },\n { label: entry.data.title },\n ]}\n>\n <article class=\"animation-page\">\n <header class=\"anim-head\">\n <h1>{entry.data.title}</h1>\n {entry.data.description && <p class=\"anim-desc\">{entry.data.description}</p>}\n </header>\n\n <section class=\"hero-stage\" aria-label=\"Hero animation\">\n {Hero ? <Hero /> : (\n <div class=\"hero-missing\">\n No hero component registered for slug \"{slug}\". Add it to\n HERO_COMPONENTS in src/pages/hogwarts/quidditch/[slug].astro.\n </div>\n )}\n </section>\n\n <section class=\"diary-section\" aria-label=\"Build diary\">\n <div class=\"section-head\">\n <h2>{isVi ? \"Nhật ký dựng\" : \"Build diary\"}</h2>\n <p class=\"section-sub\">\n {isVi\n ? \"Toàn bộ phiên Claude Code. Dùng ← → hoặc click chapter để di chuyển.\"\n : \"Full Claude Code session. Use ← → or click a chapter to scrub.\"}\n </p>\n </div>\n <RawViewer transcript={fixture.transcript} chapters={fixture.chapters} />\n </section>\n </article>\n</Base>\n\n<style>\n .animation-page { max-width: 1080px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }\n .anim-head { margin-bottom: 2rem; }\n .anim-head h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin: 0 0 0.5rem; letter-spacing: -0.02em; }\n .anim-desc { color: var(--secondary, #8a8f98); max-width: 60ch; margin: 0; line-height: 1.6; }\n\n .hero-stage {\n border: 1px solid var(--border, rgba(255, 255, 255, 0.06));\n border-radius: 12px;\n overflow: hidden;\n margin-bottom: 3rem;\n }\n .hero-missing {\n padding: 3rem;\n text-align: center;\n color: var(--muted, #62666d);\n font-family: var(--mono, ui-monospace);\n font-size: 0.875rem;\n }\n\n .diary-section { margin-top: 2rem; }\n .section-head { margin-bottom: 1.25rem; }\n .section-head h2 { margin: 0 0 0.25rem; font-size: 1.125rem; }\n .section-sub { color: var(--muted, #62666d); margin: 0; font-size: 0.875rem; }\n</style>\n", "structuredPatch": [ { "oldStart": 9, "oldLines": 6, "newStart": 9, "newLines": 7, "lines": [ " import { env } from \"cloudflare:workers\";", " ", " import PlaceholderHero from \"../../../animations/placeholder/index.astro\";", "+import SnitchTrailHero from \"../../../animations/snitch-trail/index.astro\";", " ", " interface AnimationData {", " title: string;" ] } ], "userModified": false, "replaceAll": false }, "postStateChecksum": {} } -
#21 Edit · <repo>/src/pages/hogwarts/quidditch/[slug].astro
{ "cursor": 21, "ts": "2026-04-16T10:46:06Z", "kind": "tool", "tool": "Edit", "input": { "file_path": "<repo>/src/pages/hogwarts/quidditch/[slug].astro", "old_string": "const HERO_COMPONENTS = {\n placeholder: PlaceholderHero,\n} as const;", "new_string": "const HERO_COMPONENTS = {\n placeholder: PlaceholderHero,\n \"snitch-trail\": SnitchTrailHero,\n} as const;", "replace_all": false }, "output": { "filePath": "<repo>/src/pages/hogwarts/quidditch/[slug].astro", "oldString": "const HERO_COMPONENTS = {\n placeholder: PlaceholderHero,\n} as const;", "newString": "const HERO_COMPONENTS = {\n placeholder: PlaceholderHero,\n \"snitch-trail\": SnitchTrailHero,\n} as const;", "originalFile": "---\nexport const prerender = false;\n\nimport Base from \"../../../layouts/Base.astro\";\nimport { getEmDashEntry } from \"emdash\";\nimport { getCurrentLang } from \"../../../utils/lang\";\nimport { loadFromR2 } from \"../../../lib/animations/load-from-r2.ts\";\nimport RawViewer from \"../../../components/animations/RawViewer.astro\";\nimport { env } from \"cloudflare:workers\";\n\nimport PlaceholderHero from \"../../../animations/placeholder/index.astro\";\nimport SnitchTrailHero from \"../../../animations/snitch-trail/index.astro\";\n\ninterface AnimationData {\n title: string;\n description?: string;\n tags?: string[];\n hero_component?: string;\n primary_session_id?: string;\n language?: string;\n}\n\nconst { slug } = Astro.params;\nif (!slug) return Astro.redirect(\"/hogwarts/quidditch/\");\n\nconst currentLang = getCurrentLang(Astro);\nconst isVi = currentLang === \"vi\";\n\nconst entryResult = await getEmDashEntry(\"animations\" as never, slug, { locale: \"en\" } as never);\nconst entry = (entryResult as unknown as { entry?: { id: string; data: AnimationData }; cacheHint?: unknown }).entry;\nconst cacheHint = (entryResult as unknown as { cacheHint?: unknown }).cacheHint;\nif (!entry) return new Response(\"Not Found\", { status: 404 });\nif (cacheHint) Astro.cache.set(cacheHint as never);\n\n// Plan B: R2-backed loader queries animation_sessions in D1, fetches the\n// latest published transcript.jsonl.gz from R2 MEDIA, and returns the same\n// shape the fixture did. Falls back to the on-disk fixture when R2 has no\n// data yet — preserves the placeholder during rollout.\nconst fixture = await loadFromR2(\n slug,\n env as Parameters<typeof loadFromR2>[1],\n);\n\n// Hero component registry — explicit map. Astro can't dynamically import\n// user-authored components from a runtime-computed path while keeping\n// tree-shaking correct.\nconst HERO_COMPONENTS = {\n placeholder: PlaceholderHero,\n} as const;\n\nconst Hero = (HERO_COMPONENTS as Record<string, typeof PlaceholderHero>)[slug];\n---\n\n<Base\n title={`${entry.data.title} — Quidditch`}\n description={entry.data.description ?? \"Animation playground artifact\"}\n breadcrumbs={[\n { label: \"Hogwarts\", href: \"/\" },\n { label: isVi ? \"Sân Quidditch\" : \"Quidditch Pitch\", href: \"/hogwarts/quidditch/\" },\n { label: entry.data.title },\n ]}\n>\n <article class=\"animation-page\">\n <header class=\"anim-head\">\n <h1>{entry.data.title}</h1>\n {entry.data.description && <p class=\"anim-desc\">{entry.data.description}</p>}\n </header>\n\n <section class=\"hero-stage\" aria-label=\"Hero animation\">\n {Hero ? <Hero /> : (\n <div class=\"hero-missing\">\n No hero component registered for slug \"{slug}\". Add it to\n HERO_COMPONENTS in src/pages/hogwarts/quidditch/[slug].astro.\n </div>\n )}\n </section>\n\n <section class=\"diary-section\" aria-label=\"Build diary\">\n <div class=\"section-head\">\n <h2>{isVi ? \"Nhật ký dựng\" : \"Build diary\"}</h2>\n <p class=\"section-sub\">\n {isVi\n ? \"Toàn bộ phiên Claude Code. Dùng ← → hoặc click chapter để di chuyển.\"\n : \"Full Claude Code session. Use ← → or click a chapter to scrub.\"}\n </p>\n </div>\n <RawViewer transcript={fixture.transcript} chapters={fixture.chapters} />\n </section>\n </article>\n</Base>\n\n<style>\n .animation-page { max-width: 1080px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }\n .anim-head { margin-bottom: 2rem; }\n .anim-head h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin: 0 0 0.5rem; letter-spacing: -0.02em; }\n .anim-desc { color: var(--secondary, #8a8f98); max-width: 60ch; margin: 0; line-height: 1.6; }\n\n .hero-stage {\n border: 1px solid var(--border, rgba(255, 255, 255, 0.06));\n border-radius: 12px;\n overflow: hidden;\n margin-bottom: 3rem;\n }\n .hero-missing {\n padding: 3rem;\n text-align: center;\n color: var(--muted, #62666d);\n font-family: var(--mono, ui-monospace);\n font-size: 0.875rem;\n }\n\n .diary-section { margin-top: 2rem; }\n .section-head { margin-bottom: 1.25rem; }\n .section-head h2 { margin: 0 0 0.25rem; font-size: 1.125rem; }\n .section-sub { color: var(--muted, #62666d); margin: 0; font-size: 0.875rem; }\n</style>\n", "structuredPatch": [ { "oldStart": 46, "oldLines": 6, "newStart": 46, "newLines": 7, "lines": [ " // tree-shaking correct.", " const HERO_COMPONENTS = {", " placeholder: PlaceholderHero,", "+ \"snitch-trail\": SnitchTrailHero,", " } as const;", " ", " const Hero = (HERO_COMPONENTS as Record<string, typeof PlaceholderHero>)[slug];" ] } ], "userModified": false, "replaceAll": false }, "postStateChecksum": {} } -
#22 Read · <repo>/seed/seed.json
{ "cursor": 22, "ts": "2026-04-16T10:46:13Z", "kind": "tool", "tool": "Read", "input": { "file_path": "<repo>/seed/seed.json", "offset": 28295, "limit": 15 }, "output": { "type": "text", "file": { "filePath": "<repo>/seed/seed.json", "content": "", "numLines": 0, "startLine": 28295, "totalLines": 28275 } }, "postStateChecksum": {} } -
#23 Read · <repo>/seed/seed.json
{ "cursor": 23, "ts": "2026-04-16T10:46:18Z", "kind": "tool", "tool": "Read", "input": { "file_path": "<repo>/seed/seed.json", "offset": 28255, "limit": 20 }, "output": { "type": "text", "file": { "filePath": "<repo>/seed/seed.json", "content": "\t\t\"animations\": [\n\t\t\t{\n\t\t\t\t\"id\": \"placeholder\",\n\t\t\t\t\"slug\": \"placeholder\",\n\t\t\t\t\"status\": \"published\",\n\t\t\t\t\"data\": {\n\t\t\t\t\t\"title\": \"Placeholder — Spinning Snitch\",\n\t\t\t\t\t\"description\": \"A minimal CSS keyframe spinner used to prove the grid + raw viewer render end-to-end. Replaced by the first real recorded animation once Plan B ships.\",\n\t\t\t\t\t\"tags\": [\n\t\t\t\t\t\t\"placeholder\",\n\t\t\t\t\t\t\"css\"\n\t\t\t\t\t],\n\t\t\t\t\t\"hero_component\": \"src/animations/placeholder/index.astro\",\n\t\t\t\t\t\"primary_session_id\": \"fixture-0000\",\n\t\t\t\t\t\"language\": \"en\"\n\t\t\t\t}\n\t\t\t}\n\t\t]\n\t}\n}", "numLines": 20, "startLine": 28255, "totalLines": 28275 } }, "postStateChecksum": {} } -
#24 Bash · npx emdash seed seed/seed.json --validate 2>&1 | tail -3 echo "---seeding local (data.db)---" npx emdash seed seed/seed.json --url http://localhost:4321 2>&1 | tail -8 echo "---seeding wrangler miniflare D1---" npx emdash seed seed/seed.json --database .wrangler/state/v3/d1/miniflare-D1DatabaseObject/1e5f993cdfbf413bf46e80ed5d9ca9d4a615e6af09e7e04958b139bcc29648fc.sqlite 2>&1 | tail -5
{ "cursor": 24, "ts": "2026-04-16T10:46:33Z", "kind": "tool", "tool": "Bash", "input": { "command": "npx emdash seed seed/seed.json --validate 2>&1 | tail -3\necho \"---seeding local (data.db)---\"\nnpx emdash seed seed/seed.json --url http://localhost:4321 2>&1 | tail -8\necho \"---seeding wrangler miniflare D1---\"\nnpx emdash seed seed/seed.json --database .wrangler/state/v3/d1/miniflare-D1DatabaseObject/1e5f993cdfbf413bf46e80ed5d9ca9d4a615e6af09e7e04958b139bcc29648fc.sqlite 2>&1 | tail -5", "description": "Validate + seed both dev DBs" }, "output": { "stdout": "◐ Validating seed file...\n✔ Seed file is valid\n✔ Validation complete\n---seeding local (data.db)---\nℹ Settings: 2 applied\nℹ Collections: 0 created, 5 skipped, 0 updated\nℹ Fields: 0 created, 38 skipped, 0 updated\nℹ Bylines: 0 created, 1 skipped, 0 updated\nℹ Menus: 0 created, 3 items\nℹ Widget Areas: 0 created, 4 widgets\nℹ Content: 1 created, 293 skipped, 0 updated\n✔ Done!\n---seeding wrangler miniflare D1---\nℹ Bylines: 0 created, 1 skipped, 0 updated\nℹ Menus: 0 created, 3 items\nℹ Widget Areas: 0 created, 4 widgets\nℹ Content: 1 created, 293 skipped, 0 updated\n✔ Done!", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} } -
#25 Bash · # Verify local sleep 2 curl -sS -o /tmp/st.html -w "local: %{http_code}\n" http://localhost:4321/hogwarts/quidditch/snitch-trail grep -oE "Snitch Trail|flight-path|offset-path|fly 7s" /tmp/st.html | sort -u echo "---sync to remote D1---" # Extract just the snitch-trail entry from local data.db sqlite3 data.db ".mode insert ec_animations" \ "SELECT * FROM ec_animations WHERE slug='snitch-trail';" > /tmp/snitch.sql cat /tmp/snitch.sql | head -3 echo "---apply to remote---" npx wrangler d1 execute pensieve-db --remote --file /tmp/snitch.sql 2>&1 | grep -E "rows_written|success" | head -3
{ "cursor": 25, "ts": "2026-04-16T10:46:55Z", "kind": "tool", "tool": "Bash", "input": { "command": "# Verify local\nsleep 2\ncurl -sS -o /tmp/st.html -w \"local: %{http_code}\\n\" http://localhost:4321/hogwarts/quidditch/snitch-trail\ngrep -oE \"Snitch Trail|flight-path|offset-path|fly 7s\" /tmp/st.html | sort -u\n\necho \"---sync to remote D1---\"\n# Extract just the snitch-trail entry from local data.db\nsqlite3 data.db \".mode insert ec_animations\" \\\n \"SELECT * FROM ec_animations WHERE slug='snitch-trail';\" > /tmp/snitch.sql\ncat /tmp/snitch.sql | head -3\n\necho \"---apply to remote---\"\nnpx wrangler d1 execute pensieve-db --remote --file /tmp/snitch.sql 2>&1 | grep -E \"rows_written|success\" | head -3", "description": "Verify local + sync remote" }, "output": { "stdout": "local: 200\nflight-path\nfly 7s\noffset-path\nSnitch Trail\n---sync to remote D1---\nINSERT INTO ec_animations VALUES('01KPAYCMDNKY7Z5Y2J883YG0M0','snitch-trail','published',NULL,NULL,'2026-04-16T10:46:32.630Z','2026-04-16T10:46:32.630Z','2026-04-16T10:46:32.629Z',NULL,NULL,1,NULL,NULL,'en','01KPAYCMDNKY7Z5Y2J883YG0M0','Snitch Trail','A golden snitch traces a figure-eight flight path with a trailing shimmer of gold sparkles. First animation built with the Quidditch capture pipeline — transcript + renders + source-history all published to R2/D1 on git push.','[\"svg\",\"offset-path\",\"quidditch\"]','src/animations/snitch-trail/index.astro',NULL,'','en');\n---apply to remote---", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} } -
#26 Bash · npx wrangler d1 execute pensieve-db --remote --file /tmp/snitch.sql 2>&1 | tail -20
{ "cursor": 26, "ts": "2026-04-16T10:47:04Z", "kind": "tool", "tool": "Bash", "input": { "command": "npx wrangler d1 execute pensieve-db --remote --file /tmp/snitch.sql 2>&1 | tail -20", "description": "Retry remote insert" }, "output": { "stdout": " \"meta\": {\n \"served_by\": \"v3-prod\",\n \"served_by_region\": \"APAC\",\n \"served_by_colo\": \"SIN\",\n \"served_by_primary\": true,\n \"timings\": {\n \"sql_duration_ms\": 2.7338\n },\n \"duration\": 2.7338,\n \"changes\": 8,\n \"last_row_id\": 2,\n \"changed_db\": true,\n \"size_after\": 3690496,\n \"rows_read\": 0,\n \"rows_written\": 14,\n \"num_tables\": 63,\n \"total_attempts\": 1\n }\n }\n]", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} } -
#27 Bash · pkill -f "astro dev" 2>&1 ; sleep 2 git add src/animations/snitch-trail/ src/pages/animation-preview/ "src/pages/hogwarts/quidditch/[slug].astro" seed/seed.json emdash-env.d.ts git status --short 2>&1 | head -10
{ "cursor": 27, "ts": "2026-04-16T10:47:12Z", "kind": "tool", "tool": "Bash", "input": { "command": "pkill -f \"astro dev\" 2>&1 ; sleep 2\ngit add src/animations/snitch-trail/ src/pages/animation-preview/ \"src/pages/hogwarts/quidditch/[slug].astro\" seed/seed.json emdash-env.d.ts\ngit status --short 2>&1 | head -10", "description": "Stage snitch-trail changes" }, "output": { "stdout": "M emdash-env.d.ts\nM seed/seed.json\nA src/animations/snitch-trail/index.astro\nM src/pages/animation-preview/[slug].astro\nM src/pages/hogwarts/quidditch/[slug].astro\n?? .claude/session-logs/2026-04-14_14-53-59.diff\n?? .claude/session-logs/2026-04-16_08-29-35.diff\n?? .superpowers/brainstorm/89196-1776101064/\n?? data.db-shm\n?? data.db-wal", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} } -
#28 Bash · git commit -m "$(cat <<'EOF' feat(animations): snitch trail — first real capture on Quidditch playground Golden snitch traces a figure-eight SVG path using offset-path + offset-rotate: auto. Accompanied by five staggered trail sparkles sharing the same path with negative animation-delay + decreasing opacity + mix-blend-mode: screen for the gold-on-dark shimmer. Wings flap independently at 0.16s via separate keyframes for left/right (translate + rotate composed with scaleY pulse). Built iteratively in five visible chapters: v1 static structure v2 offset-path flight v3 flapping wings v4 gold trail sparkles v5 a11y + trail timing polish Full Claude Code session transcript captured via Plan B hooks — will publish to R2/D1 automatically on git push. First real animation in the pedagogy pipeline. Co-Authored-By: deathemperor <loc.truongh@gmail.com> EOF )" 2>&1 | tail -3
{ "cursor": 28, "ts": "2026-04-16T10:47:23Z", "kind": "tool", "tool": "Bash", "input": { "command": "git commit -m \"$(cat <<'EOF'\nfeat(animations): snitch trail — first real capture on Quidditch playground\n\nGolden snitch traces a figure-eight SVG path using offset-path +\noffset-rotate: auto. Accompanied by five staggered trail sparkles\nsharing the same path with negative animation-delay + decreasing\nopacity + mix-blend-mode: screen for the gold-on-dark shimmer. Wings\nflap independently at 0.16s via separate keyframes for left/right\n(translate + rotate composed with scaleY pulse).\n\nBuilt iteratively in five visible chapters:\n v1 static structure\n v2 offset-path flight\n v3 flapping wings\n v4 gold trail sparkles\n v5 a11y + trail timing polish\n\nFull Claude Code session transcript captured via Plan B hooks — will\npublish to R2/D1 automatically on git push. First real animation in the\npedagogy pipeline.\n\nCo-Authored-By: deathemperor <loc.truongh@gmail.com>\nEOF\n)\" 2>&1 | tail -3", "description": "Commit snitch-trail" }, "output": { "stdout": "[feat/snitch-trail 0001e22d] feat(animations): snitch trail — first real capture on Quidditch playground\n 5 files changed, 178 insertions(+)\n create mode 100644 src/animations/snitch-trail/index.astro", "stderr": "", "interrupted": false, "isImage": false, "noOutputExpected": false }, "postStateChecksum": {} }
Live render
What the animation looks like at the current cursor in the transcript.
Snapshots
5 renders captured during the build. Click to jump.
Practice Try it yourself
Edit the code on the left, see the result on the right. Your edits are scratch-only — reload resets to the last saved version. Auto-runs when you pause typing; hit Cmd+Enter (or the Run button) to force it.
src/animations/snitch-trail/index.astro ready
Preview