Hey guys, usually I rather stay silent on “new” buzz-words, but all this fuss with “context engineering is the NEW way” got me bogged. Those who read my 5 cents here will understand, that the “context” is something most of you already knew the importance of and used the “new” approach for years.
So here is my attempt to kind of organize it in a more consumable and actionable writing (done with one of my custom gpts and about 10 iterations to refine the angle the LLM was not getting, 15 min writing with a coffee):
Prompt Engineering Is Dead, and Context Engineering Is Already Obsolete: Why the Future Is Automated Workflow Architecture with LLMs
By Serge Liatko
Co-Founder & CTO, LAWXER | Owner & CTO, TechSpokes
Introduction: Moving Past the Hype
The conversation around large language models (LLMs) has shifted rapidly in the last few years. Not long ago, the hottest topic in the field was “prompt engineering”—the art of crafting just the right input text to coax the best answers out of these generative models. When it became clear that prompts alone were not enough, attention moved to “context engineering,” involving more sophisticated tricks for feeding the model extra information—retrieval pipelines, database summaries, contextual memory, and more.
For those new to the field, these innovations seemed like the logical evolution of AI interaction. For those of us who have been building real, production-grade systems with LLMs for years, both prompt and context engineering have already become outdated. They are, at best, transitional scaffolding—necessary steps on the way to something more robust, but not solutions that can carry us into the next era.
The actual work of making LLMs useful in real businesses—especially at scale—is something different, less flashy, and much more technical: the architecture of automated workflows, in which every piece of context, every instruction, and every task breakdown is generated, managed, and delivered by code, not by hand. This article explores why that shift has occurred, what it looks like in practice, and what questions practitioners should be asking if they want their systems to be viable in the next wave of AI development.
The End of Prompt Engineering: Why the First Layer Failed
It’s easy to see why prompt engineering caught on. LLMs, from their earliest public releases, responded dramatically to small changes in the way requests were phrased. The right “magic words” could sometimes produce better, more relevant outputs. This made for great demos and countless “how-to” guides, but it was always an unstable foundation for serious work.
Prompt engineering suffers from several intrinsic problems:
- Fragility: Minor changes in input, system versions, or even random model drift can undermine prompt effectiveness.
- Lack of scalability: Every new feature or edge case demands more prompt variations and manual maintenance.
- Limited reasoning: LLMs are not logic engines; they are large, probabilistic text predictors. No amount of prompt tuning can force true understanding or consistent results in complex workflows.
For a time, this was accepted as a necessary cost, especially for teams building prototypes or academic experiments. But as soon as LLMs were asked to power critical business logic, the shortcomings became impossible to ignore.
The Context Engineering Revolution—And Its Limits
The move toward context engineering was both a response to the limitations of prompts and an attempt to bridge the gap between simple input strings and real business applications. Context engineering, in its most general sense, involves assembling, summarizing, and delivering additional background or instructions along with every user input, in the hope that the LLM will use this extra information to behave more reliably.
Typical techniques in this domain include:
- Retrieval-Augmented Generation (RAG): Combining LLMs with vector databases or search tools to fetch relevant documents, facts, or histories to “augment” each prompt.
- Structured instructions: Wrapping input in JSON, markdown, or formal templates to guide the model’s response.
- System prompts and persona management: Setting a stable “system message” to shape how the model “thinks” throughout a session.
Context engineering helped, but it created new challenges:
- Manual curation: Engineers spent ever more time assembling, validating, and updating context snippets, summaries, or schemas.
- Scaling pain: As workflows grew, so did the amount of context—and the risk of conflicting, redundant, or outdated instructions.
- Performance overhead: Larger context windows slowed systems down and made debugging harder, as it became unclear which piece of context was causing which outcome.
For teams working on a handful of small projects, these burdens might seem tolerable. For those with dozens of workflows, hundreds of entities, or ever-changing compliance requirements, the approach quickly proved unmanageable.
Why Context Engineering Is Already Outdated for Serious Practitioners
Having built and operated LLM-driven systems in both the legal and technology industries, my experience is that context engineering is simply not sustainable beyond a certain threshold. The crux of the problem is that human effort does not scale with data complexity. If every new document, regulation, or client integration requires a developer to update context definitions, no amount of clever retrieval or summarization can keep up.
A typical sign that a system has reached its context engineering limit is the explosion of glue code and manual documentation: endless summaries, hand-crafted prompt snippets, and ad hoc logic for every workflow branch. Even the most advanced retrieval systems struggle when each step of a workflow needs different context, formatted in different ways, and tied to evolving business rules.
This is the inflection point where, in my view, sustainable systems begin to look very different from the early prototypes. They are built on the principle that context must be generated and managed automatically by code, as a function of the system’s own structure and state—not by manual intervention.
A Pragmatic Example: From Database to Automated Workflows
Let’s take a common scenario: a business application built on a complex database schema. There are dozens or hundreds of entities, each with fields, types, constraints, and relationships. In the early days, engineers might copy entity definitions into prompts, or write long context descriptions to help the LLM “understand” the data.
But as requirements change—new entities, altered fields, shifting regulations—the cost of keeping those context pieces up to date grows rapidly. What’s more, there is often a gap between what’s in the documentation and what’s actually running in production.
A scalable approach is to automate this entire layer. Scripts can introspect the database, generate up-to-date JSON schemas, and even produce concise documentation for every entity and relationship. This machine-generated context can be delivered to the LLM exactly when needed, in the right format, with the scope tightly controlled for each step of a workflow.
For example, when asking the LLM to draft a summary of a contract, the workflow might:
- Automatically assemble a structured description of the “contract” entity, its parties, obligations, and dates—directly from the live database schema.
- Generate a step-by-step workflow, so the model first extracts parties, then identifies obligations, then summarizes deadlines—each with precisely the context required for that step.
- Validate outputs against the expected schema after each step, flagging discrepancies for review or reprocessing.
No engineer writes or updates context by hand. The system stays in sync with business logic as it evolves, and the LLM’s “attention” is strictly bounded by the requirements of each workflow node.
The New Skillset: Workflow Architecture and Code-Driven Context
If prompt and context engineering are becoming obsolete, what replaces them? The answer is not a new buzzword, but a shift in both mindset and engineering discipline.
Successful LLM systems are increasingly built by architects who:
- Decompose tasks into atomic steps: Each task is narrow, focused, and designed with a clear input and output schema.
- Automate context generation: Context is emitted by the codebase itself—via schema analysis, documentation generators, workflow compilers, or metadata extraction.
- Control model focus and attention: Each step feeds the LLM only the information relevant to that decision, reducing ambiguity and minimizing hallucination risk.
- Build observability into every workflow: Outputs are monitored, validated, and traced back to their inputs; debugging focuses on improving step structure, not prompt wording.
- Iterate at the system, not prompt, level: When failures occur, the cause is usually a data pipeline, step definition, or workflow issue—not a subtle prompt phrasing.
This is not a claim that only one architecture is viable, nor an attempt to establish a new “best practice” orthodoxy. It is simply the pattern that has emerged organically from trying to build systems that last more than a few months, and that can be handed off between teams without a collapse in quality.
Preparing for the Era of Automated Workflows
For organizations hoping to build or maintain competitive LLM-powered products, there are a few hard questions worth considering:
- How will your systems generate, update, and deliver context at scale—without developer intervention for every schema or workflow change?
- Who owns the specification for each step’s input, focus, and output—and how is this versioned, tested, and audited as requirements shift?
- Are your current tools and pipelines designed to emit machine-readable summaries and input contracts, or do they rely on ad hoc documentation and handoffs?
- What processes are in place to monitor, trace, and improve workflow execution—beyond prompt tweaking or retrieval tricks?
The answers will determine whether your AI stack survives the coming wave of automation, or gets trapped in endless cycles of manual curation and brittle integration.
Moving Forward: Not Hype, But Preparation
It’s tempting to frame this as the “only sustainable way” to build with LLMs, but that would oversell the point. The reality is more nuanced. For teams working on small, one-off projects or prototypes, prompt and context engineering may be enough—for now. For those with real business ambitions, multiple workflows, or a desire to operate at scale, automated workflow architecture is less a competitive edge and more a necessary response to unavoidable complexity.
This is not a theoretical concern, but a practical one. As regulatory landscapes shift, business requirements evolve, and systems become more interconnected, the only way to keep up is to let the codebase do the heavy lifting of context management. Automated tools—schema analyzers, documentation generators, workflow planners—are not optional upgrades; they are the infrastructure that lets human engineers focus on what matters: solving new problems, not maintaining old glue.
In my own work across LAWXER and TechSpokes, this approach has allowed us to iterate faster, avoid costly breakdowns, and maintain a level of transparency and auditability that would be impossible otherwise. It is not the only way forward, but it is, for those already grappling with these challenges, the logical next step.
Conclusion: A Call to Think Ahead
The landscape of LLM engineering is shifting under our feet. The practices that delivered impressive results just a year or two ago are no longer sufficient for the complexity, scale, and pace of modern business applications. Prompt engineering is a relic. Context engineering, for many, is already showing its limits.
The next challenge—and opportunity—is in building automated systems that generate, manage, and validate context as a core function of the software architecture. This isn’t a trend, or a marketing slogan. It’s a set of tools and habits that let teams build reliable, scalable AI products in the real world.
If you’re leading an AI project, the most valuable thing you can do right now is ask yourself: How will we automate the generation, delivery, and validation of context in our workflows? How will our tools adapt as our business evolves? Are we building for tomorrow, or just patching for today?
Those who can answer these questions, and build the necessary automation, will be ready for whatever comes next.
Serge Liatko is a linguist and software architect with over 16 years of development experience. He is the Co-Founder and CTO of LAWXER, a platform for AI-assisted legal document analysis, and the Owner & CTO at TechSpokes.