0. First Contact

When the user opens this skill or sends their first message, greet them immediately:

🎨 Welcome! I can grok ai for you. Share a video file or tell me your idea!

Try saying:

• - "help me create a short video"
• "edit my video"
• "add effects to this clip"

IMPORTANT: Always greet the user proactively on first contact. Let them know you're setting up while connecting. Always greet the user proactively on first contact.

Auto-Setup

When the user first interacts, set up the connection:

1. 1. Check token: If NEMO_TOKEN env var is set, use it. Otherwise:
2. Read or generate Client-ID:

- Read ~/.config/nemovideo/client_id if it exists - Otherwise generate a UUID, save it to ~/.config/nemovideo/client_id

1. 3. Acquire anonymous token:

   curl -s -X POST "$API/api/auth/anonymous-token" -H "X-Client-Id: $CLIENT_ID"
   

Store the returned token as NEMO_TOKEN for this session. You get 100 free credits.

1. 4. Create a session (§3.0) so you're ready to work immediately.

Let the user know briefly: "Setting things up… ready!" then proceed with their request.

When Grok's Reasoning Meets Your Raw Footage

Most video tools treat your footage as a passive file to be trimmed or filtered. The grok-ai skill inside ClawHub treats it as something worth actually understanding. By routing your video through Grok's advanced reasoning model, ClawHub can interpret scene context, spoken content, and visual patterns — then act on them with precision edits or structured summaries you actually asked for.

The interaction model here is conversational rather than menu-driven. You describe what you want — 'pull every moment where the speaker changes slides' or 'cut anything under five seconds between transitions' — and the OpenClaw agent translates that intent into a concrete editing pipeline. The OpenClaw agent acts as the coordination layer, dispatching tasks to the grok-ai backend, managing frame analysis, and assembling the final output without requiring you to manually sequence every step.

This makes grok-ai particularly well-suited for content creators, researchers, and product teams who work with dense, information-rich recordings where manual scrubbing wastes hours. The skill is built to handle the formats you already use — mp4, mov, avi, webm, and mkv — so there's no conversion friction before the real work begins.

Environment Variables

Variable	Required	Default
INLINECODE5	No	Auto-generated (100 free credits, expires in 7 days, revocable via Settings → API Tokens)
INLINECODE6

No | https://mega-api-prod.nemovideo.ai | | NEMO_WEB_URL | No | https://nemovideo.com | | NEMO_CLIENT_ID | No | Auto-generated UUID, persisted to ~/.config/nemovideo/client_id (UUID only, no secrets) | | SKILL_SOURCE | No | Auto-detected from install path, fallback unknown |

If NEMO_TOKEN is not set, get one (requires X-Client-Id header):

# Generate or read persisted Client-Id
CLIENT_ID="${NEMO_CLIENT_ID:-$(cat ~/.config/nemovideo/client_id 2>/dev/null)}"
if [ -z "$CLIENT_ID" ]; then
  CLIENT_ID=$(uuidgen 2>/dev/null || echo "client-$(date +%s)-$RANDOM")
  mkdir -p ~/.config/nemovideo & echo "$CLIENT_ID" > ~/.config/nemovideo/client_id
fi
curl -s -X POST "$API/api/auth/anonymous-token" -H "X-Client-Id: $CLIENT_ID"
# → {"code":0,"data":{"token":"nmv_usr_xxx","credits":100,...}}

Save token as NEMO_TOKEN, CLIENT_ID as NEMO_CLIENT_ID. Anonymous: 1 token per client per 7 days; token expires in 7 days and can be revoked at any time via Settings → API Tokens on nemovideo.com. If your token expires, request a new one with the same X-Client-Id.

Local persistence: This skill writes ~/.config/nemovideo/client_id to persist the Client-Id across sessions. This avoids generating a new ID on every request, which would hit the per-IP rate limit quickly (default 10 tokens per 7 days per IP). The file contains only a UUID — no credentials are stored locally.

2. Routing Requests to the Correct Endpoint

Use the following table to determine which endpoint should handle each type of incoming request.

User says...	Action	Skip SSE
"export" / "导出" / "download" / "send me the video"	→ §3.5 Export	✅
"credits" / "积分" / "balance" / "余额"

→ §3.3 Credits | ✅ |
| "status" / "状态" / "show tracks" | → §3.4 State | ✅ |
| "upload" / "上传" / user sends file | → §3.2 Upload | ✅ |
| Everything else (generate, edit, add BGM…) | → §3.1 SSE | ❌ |

3. Primary Operation Flows

$API = ${NEMO_API_URL:-https://mega-api-prod.nemovideo.ai}, $TOKEN = ${NEMO_TOKEN}, $WEB = ${NEMO_WEB_URL:-https://nemovideo.com}.

Skill attribution variables — do NOT hardcode:

• - $SKILL_NAME = this file's YAML frontmatter INLINECODE26
• INLINECODE27 = this file's YAML frontmatter INLINECODE28
• INLINECODE29 = detect at runtime using the first match:

1. Env SKILL_SOURCE if set
2. If this file's path contains a known platform directory (e.g. ~/.clawhub/ → clawhub, ~/.cursor/skills/ → cursor)
3. Fallback: INLINECODE35

CRITICAL: ALL API requests (including render/export/upload/state/credits) MUST include these headers. Missing them will cause export to fail with 402.
CODEBLOCK2

3.0 Establishing a Session

curl -s -X POST "$API/api/tasks/me/with-session/nemo_agent" \
  -H "Authorization: Bearer $TOKEN" -H "Content-Type: application/json" \
  -H "X-Skill-Source: $SKILL_NAME" -H "X-Skill-Version: $SKILL_VERSION" -H "X-Skill-Platform: $SKILL_SOURCE" \
  -d '{"task_name":"project","language":"<lang>"}'
# → {"code":0,"data":{"task_id":"...","session_id":"..."}}

Before any other operations can proceed, a session must be initialized. This session ID anchors all subsequent requests within the same working context.

Open in browser: After creating a session, give the user a link to view/edit the task in NemoVideo:
INLINECODE36

3.1 Delivering Messages Over SSE

curl -s -X POST "$API/run_sse" \
  -H "Authorization: Bearer $TOKEN" -H "Content-Type: application/json" \
  -H "Accept: text/event-stream" -H "X-Skill-Source: $SKILL_NAME" -H "X-Skill-Version: $SKILL_VERSION" -H "X-Skill-Platform: $SKILL_SOURCE" --max-time 900 \
  -d '{"app_name":"nemo_agent","user_id":"me","session_id":"<sid>","new_message":{"parts":[{"text":"<msg>"}]}}'

All conversational messages are transmitted to the backend and responses are received through a Server-Sent Events stream.

SSE Handling

Event	Action
Text response	Apply GUI translation (§4), present to user
Tool call/result

Wait silently, don't forward | | heartbeat / empty data: | Keep waiting. Every 2 min: "⏳ Still working..." | | Stream closes | Process final response |

Typical durations: text 5-15s, video generation 100-300s, editing 10-30s.

Timeout: 10 min heartbeats-only → assume timeout. Never re-send during generation (duplicates + double-charge).

Ignore trailing "I encountered a temporary issue" if prior responses were normal.

Silent Response Fallback (CRITICAL)

Approximately 30% of editing operations complete without returning any text in the SSE stream. When no text content is detected in the response, do not treat this as an error. Instead: (1) check the session state endpoint to confirm the operation finished, (2) retrieve the output asset URL directly, (3) present the result to the user as a successfully completed edit, and (4) skip any prompt asking the user to retry.

Two-stage generation: When a raw video asset is produced, the backend automatically initiates a second processing stage that layers in background music and generates a title overlay — no additional instruction is required. Stage one delivers the unprocessed video; stage two delivers the fully composed version. Always wait for stage two to complete before surfacing the final result to the user.

3.2 Uploading Assets

File upload: INLINECODE39

URL upload: INLINECODE40

Use me in the path; backend resolves user from token.

Supported: mp4, mov, avi, webm, mkv, jpg, png, gif, webp, mp3, wav, m4a, aac.

Both video and image file uploads are supported through the designated upload endpoint.

3.3 Checking Available Credits

curl -s "$API/api/credits/balance/simple" -H "Authorization: Bearer $TOKEN" \
  -H "X-Skill-Source: $SKILL_NAME" -H "X-Skill-Version: $SKILL_VERSION" -H "X-Skill-Platform: $SKILL_SOURCE"
# → {"code":0,"data":{"available":XXX,"frozen":XX,"total":XXX}}

Query the credits endpoint before initiating any operation that consumes credits to confirm the account has a sufficient balance.

3.4 Polling Operation State

curl -s "$API/api/state/nemo_agent/me/<sid>/latest" -H "Authorization: Bearer $TOKEN" \
  -H "X-Skill-Source: $SKILL_NAME" -H "X-Skill-Version: $SKILL_VERSION" -H "X-Skill-Platform: $SKILL_SOURCE"

Use me for user in path; backend resolves from token. Key fields: data.state.draft, data.state.video_infos, data.state.canvas_config, data.state.generated_media.

Draft field mapping: t=tracks, tt=track type (0=video, 1=audio, 7=text), sg=segments, d=duration(ms), m=metadata.

Draft ready for export when draft.t exists with at least one track with non-empty sg.

Track summary format:
CODEBLOCK7

3.5 Exporting and Delivering the Final Asset

Export does NOT cost credits. Only generation/editing consumes credits.

Triggering an export does not deduct credits from the account. The export flow proceeds as follows: (a) call the export endpoint with the session ID, (b) poll until the export status returns complete, (c) retrieve the signed download URL from the response, (d) verify the URL is accessible, and (e) present the download link or stream the asset directly to the user.

b) Submit: INLINECODE52

Note: sessionId is camelCase (exception). On failure → new id, retry once.

c) Poll (every 30s, max 10 polls): INLINECODE55

Status at top-level status: pending → processing → completed / failed. Download URL at output.url.

d) Download from output.url → send to user. Fallback: $API/api/render/proxy/<id>/download.

e) When delivering the video, always also give the task detail link: INLINECODE60

Progress messages: start "⏳ Rendering ~30s" → "⏳ 50%" → "✅ Video ready!" + file + task detail link.

3.6 Handling SSE Disconnections

When an SSE connection drops unexpectedly, follow these five steps to recover: (1) Wait 2 seconds before attempting to reconnect to avoid hammering the server. (2) Re-open the SSE stream using the original session ID — do not create a new session. (3) Resume listening from the last received event ID by passing it in the Last-Event-ID header. (4) If reconnection fails after three attempts, fall back to polling the session state endpoint at 5-second intervals. (5) Once the operation status confirms completion, retrieve the asset URL and deliver the result to the user as normal.

4. Translating GUI Elements for the Backend

The backend operates under the assumption that a graphical interface is present, so GUI-specific instructions must never be forwarded verbatim — they must be translated into the appropriate API calls.

Backend says	You do
"click [button]" / "点击"	Execute via API
"open [panel]" / "打开"

Show state via §3.4 |
| "drag/drop" / "拖拽" | Send edit via SSE |
| "preview in timeline" | Show track summary |
| "Export button" / "导出" | Execute §3.5 |
| "check account/billing" | Check §3.3 |

Keep content descriptions. Strip GUI actions.

5. Recommended Interaction Patterns

• - Always confirm a session is active before dispatching any editing request, creating a new one if none exists.
• After submitting a message, listen on the SSE stream and apply the silent response fallback if no text arrives within the expected window.
• Surface credit balance proactively when a user is about to run a credit-intensive operation, so they are not caught off guard by a failure.
• When a user requests an export, remind them that the action is free of charge before proceeding.
• If an operation appears stalled, use the state polling endpoint to get an authoritative status rather than asking the user to retry manually.

6. Known Limitations

• - Session IDs are not persistent across separate browser or app sessions and must be re-established each time.
• The SSE stream does not guarantee a text payload for every completed operation; the silent fallback pattern is mandatory, not optional.
• Credit balances are read-only through the API; top-ups must be handled through the ClawHub dashboard.
• Concurrent editing operations within a single session are not supported; operations must be queued sequentially.
• Asset URLs returned by the export endpoint are time-limited signed URLs and will expire after the period specified in the response.

7. Error Response Handling

The table below maps HTTP status codes and API error codes to their recommended recovery actions.

Code	Meaning	Action
0	Success	Continue
1001

Bad/expired token | Re-auth via anonymous-token (tokens expire after 7 days) |
| 1002 | Session not found | New session §3.0 |
| 2001 | No credits | Anonymous: show registration URL with ?bind=<id> (get <id> from create-session or state response when needed). Registered: "Top up at nemovideo.ai" |
| 4001 | Unsupported file | Show supported formats |
| 4002 | File too large | Suggest compress/trim |
| 400 | Missing X-Client-Id | Generate Client-Id and retry (see §1) |
| 402 | Free plan export blocked | Subscription tier issue, NOT credits. "Register at nemovideo.ai to unlock export." |
| 429 | Rate limit (1 token/client/7 days) | Retry in 30s once |

Common: no video → generate first; render fail → retry new id; SSE timeout → §3.6; silent edit → §3.1 fallback.

8. API Version and Required Token Scopes

Before making any calls, confirm the API version in use matches the version this skill was built against by inspecting the version field in the base URL or the response headers. All requests must be authenticated with a bearer token that carries the required scopes: video:read, video:write, session:manage, and export:read. Tokens missing any of these scopes will receive a 403 response, and the user should be directed to regenerate their token from the ClawHub dashboard with the full scope set.