---
title: "adam bien's blog"
url: https://daily.dev/posts/adam-bien-s-blog-etxdti7tn
source_url: https://adambien.blog/roller/abien/entry/sbce_the_spec_driven_boundary_control_entity
type: article
source: "Adam Bien"
published: 2026-07-04T06:27:18.327Z
updated: 2026-07-04T06:27:41.978Z
tags: ["java", "llm", "spec-driven-development"]
reading_time: 3
upvotes: 0
comments: 0
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# adam bien's blog

**[Adam Bien](https://daily.dev/sources/adam-bien)** · 3 min read · 0 upvotes · 0 comments

## Summary

SBCE (Spec-Driven BCE) is a workflow where every Java package capability is declared as a single spec in package-info.java using Markdown JavaDoc (JEP 467), which becomes the boundary contract for a Boundary-Control-Entity component. It ships as a new AIrails skill and composes with the existing /bce skill. The spec uses EARS notation for requirements, with transport-neutral verb-noun operations that trace directly to tests. Two commands drive the lifecycle: /sbce new to declare and scaffold, and /sbce apply to converge code to the spec. The design deliberately uses well-known standards (EARS, JavaDoc, BCE pattern) already embedded in LLM weights, keeping the entire workflow under 4,000 tokens without teaching the model a custom DSL.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://adambien.blog/roller/abien/entry/sbce_the_spec_driven_boundary_control_entity>

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---

Tags: [#java](https://daily.dev/tags/java), [#llm](https://daily.dev/tags/llm), [#spec-driven-development](https://daily.dev/tags/spec-driven-development)

[View this post on daily.dev](https://daily.dev/posts/adam-bien-s-blog-etxdti7tn)