Harmonia

Harmonia is a marketing team of Meta-model agents for startups. It turns what you already have, your website, a talk, a launch page, into posts and narrated videos that say only what's true, and nothing goes out without your yes. We built Harmonia for this hackathon from two years of hands-on content-marketing work, and one lesson from it: strategy is rarely the bottleneck; execution is. Marketing only works with a steady weekly cadence, but every post means finding the moment, adapting it, checking every claim and waiting on review. For a small team that becomes a second full-time job, while their best ideas stay buried in demos, talks and calls. Small-business owners lose 6+ hours a week to social media (VerticalResponse survey). The alternative is an agency at around $500 to $2,000 a month. Cheap AI copy is worse: 69% of people worry AI content is wrong, and 32% trust a brand less when they catch it (Meltwater/YouGov). Harmonia runs a full campaign for $0.13 to $0.28. How it works, end to end: 1. Paste your website. Muse Spark reads it, Meta's web_search finds competitors and real customer complaints, and Muse Wonder writes a cited brand brief. For cal.com: 71 seconds, $0.18, every pain quote linked to its source, unverified research dropped. 2. Ask in plain language. Nimi (Muse Spark) finds grounded angles, Ryan (Muse Wonder) proposes a strategy you approve by exact version, Noni drafts LinkedIn and X posts that cite the brief, and Dara reviews every draft against seven checks. 3. Video from a talk: Muse Voice Transcribe hears it, Muse Spark watches it and anchors moments to real frames, SAM 3.1 keeps the speaker in a vertical crop. Muse Spark then grades each clip blind; a low score triggers one re-cut. In a live run, 48/100 became 82/100. 4. Video with no footage: Muse Spark writes the scenes, Muse Image draws each frame, Meta's open-weight MMS voice narrates, and ffmpeg cuts a 9:16 MP4. Voice Transcribe listens back, and a narration that doesn't match the script fails the render (our demo: 0.98 word match). Most AI marketing tools make one step easier: a carousel, an ad, a listing. Harmonia runs the whole loop, website to cited brief to approved drafts to graded, narrated video, with one source of truth and a human gate at every release. Built for trust: - Other agents can hire Harmonia over MCP or A2A, but their token gets 403 on every approval route. Agents prepare; only you release. - Teach a rule once ("never use hashtags, end with a question") and every later strategy cites it. - Untrusted sources are screened for injected instructions. On 22 labelled cases, rules alone caught 7 of 12; adding open-weight Muse Glimmer locally caught 12 of 12, with 0 of 10 clean texts withheld. Proof, live on Meta Model API: seven end-to-end runs at $0.13 to $0.28, three concurrent campaigns verified, 1,073 agent and 948 web tests. Every run, cost and Meta request ID: https://harmonia-meta.vercel.app/proof