Produce creative like an agency

The marketing coworker's rules for visual assets: brief before pixels, palette-locked, provenance-tagged, batch-then-select — with generators treated as interchangeable.

Grounded in Anthropic's marketing post (claude.com/blog/how-anthropic-uses-claude-marketing): a growth marketer who "had to Google how to open a terminal" built a one-click Figma plugin for ad-creative variations — "what used to take 30 minutes per ad now takes 30 seconds." The coworker platform adopts the two lessons: the marketer builds the tooling, and creative volume under hard brand constraints is a systems problem.

The agency rules, applied

The cwc-marketing creative-production skill requires a written brief (subject, composition, palette, mood, negative list, aspect, placement) before any pixels exist; locks every asset to the terminal-noir palette so it sits seamlessly on the deck's ground; bans humans, logos, and text-in-image (type stays in HTML where it is crisp and accessible); tags AI-generated assets with generator, model, brief id, and date; and generates variations in batches, selecting one against the brief's checklist.

Generators are interchangeable; direction is the deliverable

The first executed brief (HB-01, the investor deck's hero band) shipped as a deterministic, seeded, in-medium SVG — 166 nodes, 325 traces, the web as agents read it — because the external generator connector (Higgsfield MCP) was unreachable from the authoring session. The brief, not the generator, carried the quality: the same document re-executes against Higgsfield's image and video models the moment the connector loads, and the A/B happens against the same checklist. Publish gates are unchanged by any of this: generation is a coworker action on free tiers, deployment ships through the build gate, external posting is operator-gated, and paid generation is a finance spend_commit.