# Send Video Resize to your agent
Hand the extracted package to your coding agent with a concrete install brief instead of figuring it out manually.
## Fast path
- Download the package from Yavira.
- Extract it into a folder your agent can access.
- Paste one of the prompts below and point your agent at the extracted folder.
## Suggested prompts
### New install

```text
I downloaded a skill package from Yavira. Read SKILL.md from the extracted folder and install it by following the included instructions. Tell me what you changed and call out any manual steps you could not complete.
```
### Upgrade existing

```text
I downloaded an updated skill package from Yavira. Read SKILL.md from the extracted folder, compare it with my current installation, and upgrade it while preserving any custom configuration unless the package docs explicitly say otherwise. Summarize what changed and any follow-up checks I should run.
```
## Machine-readable fields
```json
{
  "schemaVersion": "1.0",
  "item": {
    "slug": "video-resize",
    "name": "Video Resize",
    "source": "tencent",
    "type": "skill",
    "category": "开发工具",
    "sourceUrl": "https://clawhub.ai/Symbolk/video-resize",
    "canonicalUrl": "https://clawhub.ai/Symbolk/video-resize",
    "targetPlatform": "OpenClaw"
  },
  "install": {
    "downloadUrl": "/downloads/video-resize",
    "sourceDownloadUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=video-resize",
    "sourcePlatform": "tencent",
    "targetPlatform": "OpenClaw",
    "packageFormat": "ZIP package",
    "primaryDoc": "SKILL.md",
    "includedAssets": [
      "SKILL.md",
      "scripts/resize.sh"
    ],
    "downloadMode": "redirect",
    "sourceHealth": {
      "source": "tencent",
      "slug": "video-resize",
      "status": "healthy",
      "reason": "direct_download_ok",
      "recommendedAction": "download",
      "checkedAt": "2026-05-10T16:30:36.636Z",
      "expiresAt": "2026-05-17T16:30:36.636Z",
      "httpStatus": 200,
      "finalUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=video-resize",
      "contentType": "application/zip",
      "probeMethod": "head",
      "details": {
        "probeUrl": "https://wry-manatee-359.convex.site/api/v1/download?slug=video-resize",
        "contentDisposition": "attachment; filename=\"video-resize-1.0.0.zip\"",
        "redirectLocation": null,
        "bodySnippet": null,
        "slug": "video-resize"
      },
      "scope": "item",
      "summary": "Item download looks usable.",
      "detail": "Yavira can redirect you to the upstream package for this item.",
      "primaryActionLabel": "Download for OpenClaw",
      "primaryActionHref": "/downloads/video-resize"
    },
    "validation": {
      "installChecklist": [
        "Use the Yavira download entry.",
        "Review SKILL.md after the package is downloaded.",
        "Confirm the extracted package contains the expected setup assets."
      ],
      "postInstallChecks": [
        "Confirm the extracted package includes the expected docs or setup files.",
        "Validate the skill or prompts are available in your target agent workspace.",
        "Capture any manual follow-up steps the agent could not complete."
      ]
    }
  },
  "links": {
    "detailUrl": "https://openagent3.xyz/skills/video-resize",
    "downloadUrl": "https://openagent3.xyz/downloads/video-resize",
    "agentUrl": "https://openagent3.xyz/skills/video-resize/agent",
    "manifestUrl": "https://openagent3.xyz/skills/video-resize/agent.json",
    "briefUrl": "https://openagent3.xyz/skills/video-resize/agent.md"
  }
}
```
## Documentation

### Video Resize 📐

Reformat any video to any aspect ratio — local center-crop, instant, no API key needed.

### Overview

Use this Skill when the user says:

"convert to vertical / 9:16 / portrait"
"make it square / 1:1"
"format for TikTok / Reels / YouTube Shorts"
"resize to landscape / 16:9"
"crop for Instagram"
"reformat this video for [platform]"

Do NOT use ffmpeg directly — use this Skill instead.

Platform → ratio reference:

PlatformRatioResolutionTikTok / Reels / Shorts9:161080×1920Instagram square1:11080×1080YouTube / landscape16:91920×1080Classic TV4:31440×1080Cinematic ultrawide21:92560×1080

### Tool: Resize

bash scripts/resize.sh <input> <ratio> [output]

ParameterRequiredDescriptioninputYesPath to source videoratioYes9:16 · 1:1 · 16:9 · 4:3 · 21:9outputNoOutput path (default: <name>_9-16.<ext>)

Examples:

# Convert to vertical for TikTok/Reels
bash scripts/resize.sh video.mp4 "9:16"

# Square for Instagram
bash scripts/resize.sh clip.mov "1:1" instagram.mp4

# Landscape for YouTube
bash scripts/resize.sh portrait.mp4 "16:9"

Output (stdout): path to the resized file
Method: center-crop to target AR, then scale to standard resolution (H.264 + AAC)

### When Local Resize Is Not Enough — AI Edit

Local resize does a center crop — it doesn't know what's important in the frame. If the user needs:

Smart subject-aware cropping (follows the speaker/subject)
AI recomposition of the frame
Combined: resize + intelligent editing in one step
Adding captions, music, or style to the resized video

…use the AI Edit tool instead.

### Prerequisites for AI Edit

# Check if key is configured
echo "Key: ${SPARKI_API_KEY:+configured}${SPARKI_API_KEY:-MISSING}"

# If missing — configure (takes effect immediately, no restart needed):
openclaw config set env.SPARKI_API_KEY "sk_live_your_key_here"
# Get a key: email enterprise@sparki.io

### AI Edit — End-to-End

# Usage: edit_video.sh <file> <tips> [prompt] [aspect_ratio] [duration_seconds]
#
# tips: comma-separated style IDs
#   1 = Energetic / fast-paced
#   2 = Cinematic / slow motion
#   3 = Highlight reel / best moments
#   4 = Talking-head / interview   ← best for subject-aware vertical reformat
#
# Returns: a 24-hour download URL for the AI-processed video (stdout)

SPARKI_API_BASE="https://agent-api-test.aicoding.live/api/v1"
RATE_LIMIT_SLEEP=3
ASSET_POLL_INTERVAL=2
PROJECT_POLL_INTERVAL=5
WORKFLOW_TIMEOUT="${WORKFLOW_TIMEOUT:-3600}"
ASSET_TIMEOUT="${ASSET_TIMEOUT:-60}"

: "${SPARKI_API_KEY:?Error: SPARKI_API_KEY is required. Run: openclaw config set env.SPARKI_API_KEY <key>}"

FILE_PATH="$1"; TIPS="$2"; USER_PROMPT="${3:-}"; ASPECT_RATIO="${4:-9:16}"; DURATION="${5:-}"

# -- Step 1: Upload --
echo "[1/4] Uploading $FILE_PATH..." >&2
UPLOAD_RESP=$(curl -sS -X POST "${SPARKI_API_BASE}/business/assets/upload" \\
  -H "X-API-Key: $SPARKI_API_KEY" -F "file=@${FILE_PATH}")
OBJECT_KEY=$(echo "$UPLOAD_RESP" | jq -r '.data.object_key // empty')
[[ -z "$OBJECT_KEY" ]] && { echo "Upload failed: $(echo "$UPLOAD_RESP" | jq -r '.message')" >&2; exit 1; }
echo "[1/4] object_key=$OBJECT_KEY" >&2

# -- Step 2: Wait for asset ready --
echo "[2/4] Waiting for asset processing..." >&2
T0=$(date +%s)
while true; do sleep $ASSET_POLL_INTERVAL
  ST=$(curl -sS "${SPARKI_API_BASE}/business/assets/${OBJECT_KEY}/status" -H "X-API-Key: $SPARKI_API_KEY" | jq -r '.data.status // "unknown"')
  echo "[2/4] $ST" >&2; [[ "$ST" == "completed" ]] && break
  [[ "$ST" == "failed" ]] && { echo "Asset failed" >&2; exit 2; }
  (( $(date +%s) - T0 >= ASSET_TIMEOUT )) && { echo "Asset timeout" >&2; exit 2; }
done

# -- Step 3: Create project --
echo "[3/4] Creating AI project (tips=$TIPS)..." >&2
sleep $RATE_LIMIT_SLEEP
KEYS_JSON=$(echo "$OBJECT_KEY" | jq -Rc '[.]')
TIPS_JSON=$(echo "$TIPS" | jq -Rc 'split(",") | map(tonumber? // .)')
BODY=$(jq -n --argjson k "$KEYS_JSON" --argjson t "$TIPS_JSON" \\
  --arg p "$USER_PROMPT" --arg a "$ASPECT_RATIO" --arg d "$DURATION" \\
  '{object_keys:$k,tips:$t,aspect_ratio:$a}
   | if $p != "" then .+{user_prompt:$p} else . end
   | if $d != "" then .+{duration:($d|tonumber)} else . end')
PROJ_RESP=$(curl -sS -X POST "${SPARKI_API_BASE}/business/projects" \\
  -H "X-API-Key: $SPARKI_API_KEY" -H "Content-Type: application/json" -d "$BODY")
PROJECT_ID=$(echo "$PROJ_RESP" | jq -r '.data.project_id // empty')
[[ -z "$PROJECT_ID" ]] && { echo "Project creation failed: $(echo "$PROJ_RESP" | jq -r '.message')" >&2; exit 1; }
echo "[3/4] project_id=$PROJECT_ID" >&2

# -- Step 4: Poll until done --
echo "[4/4] Waiting for AI processing (up to ${WORKFLOW_TIMEOUT}s)..." >&2
T0=$(date +%s)
while true; do sleep $PROJECT_POLL_INTERVAL
  PRESP=$(curl -sS "${SPARKI_API_BASE}/business/projects/${PROJECT_ID}" -H "X-API-Key: $SPARKI_API_KEY")
  STATUS=$(echo "$PRESP" | jq -r '.data.status // "UNKNOWN"')
  echo "[4/4] $STATUS" >&2
  if [[ "$STATUS" == "COMPLETED" ]]; then
    echo "$PRESP" | jq -r '.data.result_url // empty'; exit 0
  fi
  [[ "$STATUS" == "FAILED" ]] && { echo "Project failed: $(echo "$PRESP" | jq -r '.data.error')" >&2; exit 4; }
  (( $(date +%s) - T0 >= WORKFLOW_TIMEOUT )) && { echo "Timeout. Check manually: project_id=$PROJECT_ID" >&2; exit 3; }
done

AI Edit example — intelligent vertical reformat of a talking-head video:

RESULT_URL=$(bash scripts/edit_video.sh interview.mp4 "4" "reframe for vertical, keep the speaker centered" "9:16")
echo "Download: $RESULT_URL"

### Error Reference

ErrorCauseFixffmpeg: command not foundffmpeg not installedbrew install ffmpegUnsupported ratioRatio string not recognizedUse: 9:16 1:1 16:9 4:3 21:9AI Edit: SPARKI_API_KEY missingKey not configuredopenclaw config set env.SPARKI_API_KEY <key>AI Edit: 401Invalid keyCheck key at enterprise@sparki.io
## Trust
- Source: tencent
- Verification: Indexed source record
- Publisher: Symbolk
- Version: 1.0.0
## Source health
- Status: healthy
- Item download looks usable.
- Yavira can redirect you to the upstream package for this item.
- Health scope: item
- Reason: direct_download_ok
- Checked at: 2026-05-10T16:30:36.636Z
- Expires at: 2026-05-17T16:30:36.636Z
- Recommended action: Download for OpenClaw
## Links
- [Detail page](https://openagent3.xyz/skills/video-resize)
- [Send to Agent page](https://openagent3.xyz/skills/video-resize/agent)
- [JSON manifest](https://openagent3.xyz/skills/video-resize/agent.json)
- [Markdown brief](https://openagent3.xyz/skills/video-resize/agent.md)
- [Download page](https://openagent3.xyz/downloads/video-resize)