What is synthesis writing?

Synthesis writing is a craft. The writer writes. The AI assists.

It is the disciplined practice of keeping the creative act of writing — the substance, the voice, the judgment, the meaning — wholly human, while letting AI help with the work writers have always been happy to delegate when they could: the small, the mechanical, the scaffolding. Spelling. Grammar. Cross-referencing a fact. Reformatting for a different audience. Surfacing a missing citation.

What it does not do matters as much. It does not draft the prose. It does not originate the ideas. It does not produce a first draft from your notes or interviews. Those remain the writer's, always.

Think of synthesis writing as the craft of working at a new kind of writer's desk in the long history of writing tools. Your dictionary, your grammar guide, your fact-checker, and your proofreader are within reach. The pen in your hand can draw on them as you write, suggesting a cleaner phrase, catching a typo, cross-referencing a fact, reformatting a piece for a different audience. The pen is not a writer. The desk is not a writer. Neither ever was. Neither ever will be.

Why now?

Writers and journalists are living through a rough moment. Works were scraped without consent to train AI systems that now compete for their income. Slop — low-quality AI-generated content produced at industrial scale — has flooded the internet so completely that slop was Merriam-Webster's 2025 Word of the Year. The fears many writers carry are legitimate, and they are grounded in real economic harm.

Synthesis writing is not a reassurance. It is a discipline. One answer, among several possible answers, to the question: how do the writers who want to use these tools still produce work worth reading — and not contribute to the flood?

Principles

1. The writer is the author. Always. The substance, the voice, the judgment, and the meaning are human, full stop.
2. AI assists with scaffolding, not substance. Research, structural feedback, spelling, grammar, formatting, fact-checking. Not ideas. Not voice. Not editorial judgment.
3. A choice, not an imperative. Writers who never use AI are practicing the craft just as legitimately. Synthesis writing is one form among many.
4. Transparency. Be honest about AI's involvement — as this site is, and as Anthropic's own writing guidance urges.
5. Elevate craft, not efficiency. Depth and quality. Never speed and cost.
6. Not a product. Synthesis writing is a craft and a discipline. Not any particular tool, platform, or software.

Not a threat

A calligrapher writing with a pen is not threatened by a word processor. They have chosen their form of the craft. The word processor is simply another option for those who want it.

Writing has always evolved through new instruments. Stone tablets. Papyrus. Paper and pen. The typewriter. The word processor. The spell checker. The grammar checker. Each step let writers think more and transcribe less. And every earlier form remained honored — calligraphy is still a valued art; a well-kept typewriter is still a worthy thing; the steady hand of a journalist with a notebook still captures what cameras cannot.

Synthesis writing is the next instrument on that line. It takes nothing away from the writers who choose not to use it. It offers something to the writers who want it.

Not a product

Synthesis writing is a craft, a discipline, a field of study, a methodology. It is not any particular product, tool, platform, or service. The long-term ambition is that it becomes a subject taught in schools and universities — a field refined over time the way composition, rhetoric, and journalism itself have been refined.

A product may be compatible with synthesis writing principles. But synthesis writing is never embodied in any specific product.

Practice

The practical, executable form of the craft lives as open-source skills — instruction packages you can use with Claude Code, OpenAI Codex, Cursor, GitHub Copilot, and other AI assistants. They are one implementation of the craft. The craft itself stands on its own.

Concretely: you might ask an AI to find the paragraph in a two-hour interview transcript where your source mentioned a particular topic. You would not ask it to write the paragraph that appears in your published piece. The skills below are tools for the first kind of use; none of them produce publishable prose on your behalf.

• synthesis-content-quality — a slop-detection methodology covering model-family fingerprints, substance-and-depth tests, and two-axis calibration
• synthesis-article-writing — a three-phase workflow for thoughtful long-form
• synthesis-content-framing — framing methodology for substantive articles
• synthesis-clean-text — avoiding AI watermarks and statistical fingerprints
• synthesis-voice-profiler — preserving a writer's distinct voice when AI assists
• synthesis-creative-writer — the craft stance for creative work
• synthesis-fact-checking — verification discipline
• synthesis-link-research — authoritative hyperlink sourcing
• synthesis-concise-messaging — the High-Five Habit
• synthesis-article-refresh — refreshing older articles with editorial polish while preserving voice
• synthesis-response-merger — combining multi-source drafts without losing authorial control
• synthesis-content-distribution — distribution without slop

The same skill catalog includes synthesis project management, a shared memory system that lets long-running writing and engineering projects move across AI assistants and synced workstations without depending on one chat transcript.

Browse the catalog on GitHub →

Compatible tools

Tools and open-source projects compatible with synthesis writing principles. None of them is synthesis writing — the craft is the craft, separate from any product — but each respects it and is free to use.

• slopcheck — Open-source slop detection. Catches AI-generation patterns by model family AND catches slop in human-written content; reports both axes separately. Free hosted tier, BYOK for unlimited use, zero data collection. Source.
• ownwords — Open-source toolkit for authors who want to own their words. Bi-directional WordPress sync, local Markdown editing, batch AI-assisted editorial operations (terminology changes, link fixes), dual publishing to WordPress and static sites. Explicitly not for AI content generation; designed for human authors who keep authorship while delegating mechanical work.
• Writing-related synthesis skills — install synthesis-content-quality, synthesis-fact-checking, synthesis-writing-pitfalls, synthesis-writing-craft, and synthesis-clean-text into any AI agent (Claude Code, Codex, Cursor, others). The skills are the practical, executable form of the craft. Free, open source.
• Related tools. Ragbot (a conversational synthesis assistant for personal knowledge work) shares the same synthesis engineering lineage. Different surface area, same family of decisions about how human and machine should collaborate.

Browse the tools subdomain →

• Slop detection, not AI detection

  A free, open-source tool that reads content along two axes: AI-provenance signal and slop-independence. Built for editor

  May 31, 2026 · 7 min read
• Introducing synthesis writing

  Introducing synthesis writing — the discipline of keeping the creative act of writing wholly human while letting AI help

  April 30, 2026 · 5 min read