Video Analysis

Video Analysis

Use When

• The user provides a local video file or video URL and asks to watch, inspect, break down, deconstruct, analyze hooks, understand shots, capture spoken lines, or explain why a video works.
• Use this for video-level evidence beyond metadata. Do not answer actual video-understanding requests from transcript guesses or general marketing knowledge.

Do Not Use When

• The task belongs to ideation, QA, or another released skill listed in the handoff section.
• Required inputs are missing and guessing would change the result.

Execution Boundary

• Analysis runs through postplus media analyze; discover its current flags with postplus media schema --json.
• Supported local formats are .mp4, .m4v, .mov, and .webm.
• Pass a local path, HTTPS URL, existing PostPlus media reference, or video data URI directly to --video. PostPlus prepares the media and runs the request; do not pre-upload it or author a manual request object.
• If media preparation or analysis fails, stop on that error.

Source And Path

• A local file or HTTPS video URL can be analyzed directly.
• Preserve sourceId, sourceUrl, videoFilePath, sourceMetadataPath or dataset path, model, prompt version, and source basis so results can be joined back to source metadata.
• Keep downloaded videos when they are expensive to source. Keep analysis Markdown files and manifests under a stable workspace path.

Analysis Scope

• The default analysis is a single output per source video.
• It covers practical short-form structure such as hook, pacing, shot beats, VO/on-screen text, product timing, and creative strategy.
• It also asks for Visual & Brand Signals when visible: genre/mood, color palette, lighting, camera language, editing rhythm, brand feeling, and best-fit creative use cases.

Output And Handoff

• media analyze returns the hosted analysis response. Read the analysis text from that response and write one natural Markdown file per source video into a stable workspace path; there is no batch runner or summary file.
• The analysis should cover useful video evidence such as shot beats, timeline, VO/on-screen text, reusable content structure, and creative strategy when those are relevant. If the result wraps the analysis in JSON, unwrap it to readable Markdown in-context.
• Results should stay grounded in observable video evidence. Database fields, catalog frontmatter, or search indexes belong to a separate ingestion step, not to the general video-analysis boundary.

Public Command Boundary

• Run postplus media analyze <model-key> --video <local-path-or-url> --prompt <analysis-prompt> --output <result.json>. When the source video duration is known (for example from the local file), pass --video-seconds <n> so the hosted boundary can route eligible short videos efficiently; omit it when the duration is unknown.

postplus media analyze video-analysis \
  --video ./reference.mp4 \
  --prompt "Describe the result you need" \
  --wait \
  --output ./result.json

• Discover the model keys and request shape with postplus media schema --json; do not use another execution interface.
• If the CLI returns a quote-confirmation challenge, run postplus quote confirm --json --challenge-file <challenge.json> and retry with the returned token.
• Choose the smallest matching command from the user input and run it directly.
• Readiness diagnostics: postplus doctor --skill video-analysis. If a command fails, report the exact error and stop. Do not bypass the failure by answering from metadata, rewriting media, readiness probing, or unowned fallbacks.