mcpField
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synthesia

synthesia

github.com/social-media-skillsCreative & media210622 installsUpdated 2w ago
Repository

About synthesia

synthesia is a skill for planning avatar videos, from spoken-word scripts and consent checks to localization and disclosure. It is aimed at training, explainers, and other informational videos that need consistent presenters across languages.

Key features

  1. 01Assess avatar suitability
  2. 02Plan consented presenter use
  3. 03Write spoken-word scripts
  4. 04Plan scenes and localization
  5. 05Include disclosure and review

Use cases

  1. 01Create training and onboarding videos
  2. 02Produce multilingual explainers
  3. 03Prepare faceless informational videos
  4. 04Localize a presenter video

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/social-media-skills/skills --skill synthesia

After installing, type/synthesiain Claude Code to confirm it loaded.

Bundled files

References and scripts installed along with SKILL.md.

evals/
evals.json
references/
fit-and-templates.md
scope-and-connections.md
synthesia-2026-reality.md
the-human-framework.md

Details

From the project README

synthesia

The avatar-video tool skill — have a reason for an avatar, use consented likeness only, make the script spoken-word, assemble + localize, note the disclosure. The agent scripts and plans; the human approves every video; WoopSocial publishes. (Ships with tools/integrations/synthesia.md.)

The POV: the presenter is synthetic — the standards stay human

Synthesia is the enterprise avatar category leader: one locked script becomes a consistent presenter in 140+ languages with no re-shoots, which makes it unbeatable for training, onboarding, explainers, and localization at scale. The top-1% operator holds four lines. (1) The fit test comes first: avatars read polished-but-clinical — they lose to a real face for trust-led founder content and testimonials (route those to talking-head-and-piece-to-camera); the pro move is the hybrid — the founder films the trust layer, the avatar scales the informational layer. (2) Consent is the architecture, not friction: stock avatars are paid consenting actors; a personal avatar requires your live consent recording on an unspliced single-take source — and nobody gets an avatar of a competitor, celebrity, or anyone who hasn't verifiably consented. (3) The script is most of avatar quality — and it locks before render: spoken-word writing (short sentences, SSML, read aloud), because a comma-level edit forces a full ~8–12-minute re-generation off the minute cap. (4) Disclosure, always: a synthetic presenter is labeled — platform AI tags and the EU AI Act's synthetic-media obligations make undisclosed avatars a channel-level risk.

Read these first

  1. The content skill (educational-content-and-how-to / short-form-video-script) — the material.
  2. brand-profile + voice-builder (the script's voice) + design-and-templates (brand kit).

The framework: HUMAN

(Depth: references/the-human-framework.md.)

  • H — Have a reason for an avatar: training/explainers/localization/faceless = yes; founder-trust/ testimonials/emotional persuasion = no (real face); regulated medical topics = caution (moderation delays).
  • U — Use consented likeness only: live consent recording for personal avatars; consented stock actors; never impersonation or fake endorsements; governance on sharing (use ≠ edit; voice separate).
  • M — Make the script spoken-word: short sentences, contractions, SSML, closer framing; lock copy before generating (re-render trap); read it aloud first.
  • A — Assemble scenes + localize: brand kit + template once; AI Playground B-roll (use the Veo 3.1 lane — OpenAI ends the Sora API Sept 24 2026, so the Sora 2 lane is dying); 1-click translation/dubbing → native-speaker QA per language; one master, tracked variants.
  • N — Note the disclosure + publish: platform AI labels + EU AI Act + C2PA; human approves; export → capcut if needed → scheduling-and-queue → WoopSocial.

The reality (verify-quarterly)

Synthesia 3.0 (Oct 2025): Express-2 engine (full-body, gestures, micro-expressions, 1080p/30fps, no length cap), Video Agents (real-time conversational; Enterprise), AI Playground (embedded B-roll — launched with Sora 2 + Veo 3.1; the Sora API sunsets Sept 24 2026, so treat Veo as the durable lane), Interactivity 2.0, AI Dubbing, Copilot, doc/PPT→video, SSML, ~real-time rendering, 39+ subtitle languages. Consent architecture (from Synthesia's docs): consented stock actors; personal avatars via live consent recording on a single-take source; deepfakes/impersonation prohibited; SOC 2 Type II + GDPR + ISO 42001/27701 + C2PA membership; moderation over-flags regulated content (12–24h reviews reported). Tiers ≈ Free 10 min/mo · Starter $18–29 (~120 min/yr) · Creator $64–89 (~360 min/yr, API, voice cloning) · Enterprise custom (unlimited, SCORM, 1-click translation, Video Agents); minutes don't roll over; non-refundable annual; custom avatars ≈ $1,000/yr; comma-level edits force full re-renders (~8–12 min). Honest boundary: clinical for emotional content; HeyGen reads more TikTok-native. Attribute all; verify-quarterly. Full detail: references/synthesia-2026-reality.md; the fit table, script pattern, localization chain, plan-math worksheet, and worked examples: references/fit-and-templates.md.

Honest scope (never violate)

  • The agent runs the fit test, writes locked spoken-word scripts, plans scenes/localization/QA, and drives the API where connected (exact human steps otherwise; no unreviewed auto-publish); the human approves every video (no fabricated "that looks natural"; native-speaker QA per language); WoopSocial publishes the exports — it does not generate avatars; LMS/SCORM distribution is the human's.
  • Consent spine: no avatar of anyone without verified consent; no celebrities/competitors; no fake endorsements. Disclosure always (platform labels; EU AI Act; C2PA). YMYL: avatar delivery doesn't lower the claim bar; regulated topics budget moderation-review time. Never fabricate tiers, gates, render times, or capabilities. (Full scope: references/scope-and-connections.md.)

Distinct from its siblings (route correctly)

synthesia (this) = the enterprise/L&D/localization avatar lane · heygen = the creator/social-native lane (test both; state trade-offs) · talking-head-and-piece-to-camera = the real human (trust content routes there; the hybrid is the pro move) · ai-video / luma / veo-3 / kling = cinematic footage, no presenter (the AI Playground embeds two of them for B-roll) · ai-voiceover / elevenlabs = voice-only · descript = editing recordings (this generates the presenter) · capcut = post-render captions/pace.

Where this connects

Reads first: the content skill + brand-profile + voice-builder + design-and-templates. Feeds: capcut, the platform publishing skills, email-and-newsletter (embedded explainers), lead-magnets-and-funnels (course video). Publishes via: export → scheduling-and-queue → WoopSocial (social); the LMS (training — human). Tool file: tools/integrations/synthesia.md. Measure with: native + analytics-and-reporting on completion/watch-through — never fabricated.

Definition of done

Avatar video that passed the fit test first (training/explainers/localization/faceless = avatar; trust-led founder content routed to a real face; the hybrid split applied where both exist), built on consented likeness only (stock actors or the owner's live-consent personal avatar; no impersonation or fake endorsements), scripted as locked spoken-word (short sentences, SSML, read aloud, signed off before a single render — no re-render burn), assembled on the brand kit with honest B-roll and localized through the chain (master → 1-click translation/dubbing → native-speaker QA per language → tracked variants), and published disclosed (platform AI labels; EU AI Act; C2PA) via WoopSocial after human approval, with plan math done honestly (minute caps, no rollover, Enterprise gates, $1,000/yr custom avatars, moderation-review buffer for regulated topics); no undisclosed synthetic presenters, no unconsented likeness, no fabricated tiers/capabilities; and correctly distinguished from heygen, talking-head-and-piece-to-camera, ai-video/luma, ai-voiceover, and descript.

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