How do I turn a per-run Markdown reel script into a finished vertical Instagram Reel: understand and time the script, generate the talking-avatar base video in HeyGen, write detailed timestamped b-roll specifications, generate and persist matching b-roll clips in Runway, then edit, caption, mix, render, and quality-check the final reel with Remotion

the agent that answers this

IG Reel Avatar + B-Roll Producer. Turn a per-run Markdown reel script into a finished vertical Instagram Reel: understand and time the script, generate the talking-avatar base video in HeyGen, write detailed timestamped b-roll specifications, generate and persist matching b-roll clips in Runway, then edit, caption, mix, render, and quality-check the final reel with Remotion.

• Step 1tool

  Preflight: before doing any work, make sure everything this agent needs is in place, so the run never fails halfway on a missing tool or an unconfigured account. Command-line tools (free, auto-install only if missing; idempotent, later runs find them present): Remotion - npx remotion versions (auto-fetches), or `npm i remotion` in the project. Services and accounts (these need a key, login, or subscription, NOT auto-installed): Runway ML (usage-based (credits); get it at https://dev.runwayml.com; alternative: Seedance (via HeyGen)); HeyGen (free trial, then paid; get it at https://heygen.com). Before the FIRST step that calls a paid service, verify its API key or login is configured. If one is missing, STOP and tell the user exactly what to sign up for, the link, and any cheaper alternative, instead of failing partway through a paid run.

  Boost development efficiency with AI Dev Runtime, a comprehensive toolkit combining file operations (read, search, edit), terminal execution, and test running. Features hybrid semantic-keyword search for precise code understanding and adaptive learning memory that improves over time. Streamline codi

  --- name: ai-dev-runtime description: Boost development efficiency with AI Dev Runtime, a comprehensive toolkit combining file operations (read, search, edit), terminal execution, and test running. Features hybrid semantic-keyword search…

  Full skill: Super Ai Dev Runtime
• Step 2

  Read the supplied Markdown script and extract the hook, spoken lines, section structure, CTA, tone, constraints, pronunciation notes, and target timing into a normalized reel brief

  Your model fills this step
• Step 3

  Convert the normalized reel brief into a production-ready timed narration and shot map with estimated line timings, avatar segments, b-roll insertion windows, on-screen text, captions, and continuity notes

  Your model fills this step
• Step 4tool

  Generate the basic portrait talking-avatar video in HeyGen from the timed narration using the saved avatar and voice settings, poll until complete, download the result locally, and retain the provider job receipt

  avatar-video — an installable skill for AI agents, published by heygen-com/skills.

  Avatar Video Create AI avatar videos with full control over avatars, voices, scripts, and backgrounds using POST /v3/videos. Two creation modes via discriminated union on type: "type": "avatar" + avatar_id — use a HeyGen avatar from the…

  Full skill: avatar-video

  • No integration? Use the signed-in HeyGen web app through browser control
  • No integration? Ask the user to provide a locally exported HeyGen avatar video if neither API nor browser access is available
• Step 5

  Probe and transcribe the downloaded avatar video to replace estimated timings with actual speech timings and identify clean b-roll cover windows without obscuring essential avatar moments

  Your model fills this step
• Step 6

  Act as a specialist b-roll writer and create one detailed generation specification per required shot, including exact duration, subject, environment, composition, camera movement, action, lighting, visual style, continuity, portrait-safe framing, negative constraints, and timeline placement

  Your model fills this step
• Step 7tool

  Generate every required portrait b-roll clip in Runway from the detailed b-roll specifications using the best available suitable portrait video model, poll each job to completion, immediately download ephemeral outputs locally, and record task receipts and file mappings

  Generate or extend videos with Runway through RunAPI. Use the RunAPI CLI for one-off results and an SDK when integrating Runway into an app, backend, worker, library, or production codebase.

  --- name: runway description: "Generate or extend videos with Runway through RunAPI. Use the RunAPI CLI for one-off results and an SDK when integrating Runway into an app, backend, worker, library, or production codebase." documentation:…

  Full skill: runway

  • No integration? Use the signed-in Runway web app through browser control
  • No integration? Ask the user to provide replacement local clips for only the shots that could not be generated
• Step 8tool

  Build or update a Remotion composition that combines the avatar source and generated b-roll according to the locked edit timeline, adds readable burned-in captions and on-screen text, applies restrained transitions and audio leveling, and renders a 9:16 Instagram Reel MP4

  Generate walkthrough videos from Stitch projects using Remotion with smooth transitions, zooming, and text overlays

  Stitch to Remotion Walkthrough Videos You are a video production specialist focused on creating engaging walkthrough videos from app designs. You combine Stitch's screen retrieval capabilities with Remotion's programmatic video generation…

  Full skill: remotion

  • No integration? Use a compatible local programmatic video renderer while preserving the edit timeline and source manifest
• Step 9

  Verify the final reel against the original script and deliverables manifest, checking resolution and aspect ratio, duration, audio presence and levels, caption legibility and timing, b-roll completeness, sync, visual continuity, missing media, black frames, and successful playback; repair and rerender any failed checks

  Your model fills this step
• Step 10decision

  Quality gate: adversarially critique the deliverable produced by the prior steps, from three lenses (a domain expert, a hard skeptic, and the end user). Check it actually accomplishes the job, is accurate and on-brand, and is genuinely high quality. Fix clear problems in place; if something should block or materially change it, say so before it reaches the user.

  Decision step
• Step 11decision

  Voice Pass: before showing any user-facing text, rewrite the final draft so it sounds natural, platform-native, and non-generic. Preserve the meaning, facts, links, citations, decisions, and concrete details. Remove obvious AI tells: generic praise, inflated significance, rule-of-three padding, em/en dash overuse, chatbot artifacts, fake-candid openers, promotional filler, vague hedging, and formulaic conclusions. Match any provided voice samples, agent memory, prior feedback, and platform norms (Reddit/HN/social/email); if none exist, use a concise natural voice. Do not add unsupported claims. For factual, technical, legal, or reference outputs, keep the voice plain and neutral rather than adding personality.

  Decision step
• Step 12decision

  Present the final reel, QA report, source manifest, and reusable project for user review; require explicit approval before any publication or external posting

  Decision step

common questions

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