copywriter
AI copywriting & conversion-copy microservice: generate marketing headlines, taglines/slogans, and long-form ad copy using proven direct-response formulas (AIDA attention-interest-desire-action, PAS...
copywriter — AI conversion-copy microservice
Generates persuasive marketing copy from a few inputs (product, benefit, audience, features) using proven direct-response formulas plus power-word / emotion banks. A paid "intelligent microservice": every tool has a deterministic template core that runs fully offline, and the generative tools optionally call an LLM (via ../_shared/llm.js) to enrich, silently falling back to the heuristic. Every result is tagged mode: 'heuristic' | 'llm'.
Tools
| tool | what it does |
|---|---|
headline | N marketing headlines from product/benefit/audience via rotating proven angles (keyword-weavable). |
tagline | Short, memorable brand taglines/slogans. |
adCopy | Long-form ad copy in a chosen formula: AIDA · PAS · FAB · 4Ps · BAB. |
productDescription | SEO-flavored product description: short line + bullets + persuasive paragraph. |
cta | High-converting calls-to-action (button label + microcopy). |
valueProps | Turns features into benefit-driven value propositions (feature → so-that benefit). |
rewrite | Rewrites/paraphrases existing copy in a chosen tone. |
variants | Spins a base line into N A/B variants. |
powerWords | Scores copy for power words + emotional triggers and suggests injections (or returns the banks as a catalog). |
Tones: bold · friendly · professional · playful · luxury · urgent.
Usage
import copywriter from './index.js';
await copywriter.adapters.headline({ product: 'FlowDesk', benefit: 'ship faster', audience: 'startup founders', count: 5 });
await copywriter.adapters.adCopy({ product: 'FlowDesk', problem: 'scattered tasks', benefit: 'one calm workspace', formula: 'pas' });
copywriter.adapters.valueProps({ product: 'FlowDesk', features: ['AI triage', 'offline sync', 'one-click reports'] });
copywriter.adapters.powerWords({ text: 'Get started free today and transform your workflow instantly.' });Every call takes ONE args object (maps 1:1 to an HTTP POST body). Missing required inputs throw TypeError with a clear message.
Hybrid intelligence
Deterministic templates + banks always produce output. When an LLM is reachable (env-configured OpenAI-compatible endpoint or a local Ollama), the generative tools (headline, tagline, adCopy, productDescription, rewrite, variants) draft a richer result and include the heuristic as fallback. A down/absent model never throws — the pack works 100% offline.
DRY boundaries
- Generates copy. It does not audit HTML/meta tags or build sitemaps — that's
seo. - It does not reshape one piece of copy across social platforms — that's
content-repurposer. - It does not build keyword briefs/outlines — that's
seo-brief. - No cross-pack imports except
../_shared/llm.js. Pure ESM, Node built-ins only, zero npm deps.