From Developer to Builder: A Spec-Driven Development Deep Dive

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From Developer to Builder: A Spec-Driven Development Deep Dive by Simon Martinelli
Room 8 · Deep Dive · 13:30-16:30

Summary

Spec-Driven Development uses specifications, not prompts, to guide AI coding agents. This deep dive shows how to build and evolve applications by writing specs, generating code, testing against requirements, and updating specs when needs change. It covers harness design, practical use, limits, and adoption on your own stack.

Key points ⭐

• 26:00 Documentation on custom frameworke, MCP on top
• 49:00 -> Modular Monolith
• 2:00:00 he is a point about test coverage
• 2:33:00 evals, tessl ?
• 2:40:00 Review How it does it with pet clinic

Timeline

01:03

06:00

07:00

• SDD - spec - Driven Development

10:25

15:19

17:00

• Software engenering : Define solution
• Developer [?] : Typing

18:00

• AI unified process

26:00 ⭐

• Behevior + Data structure
• Documentation on custom frameworke
• MCP on top

30:00

• Vaadin for Business Application
• with good herarchie
  • you dont have to test Higher component

45:00

• he start his Demo usin his AI UP Framework

49:00 ⭐

• monolith doesn’t make sense
• -> Modular Monolith
• Review this part
• AI unified process for Business Application

53:45

1:11:00

• Harness engeneering

1:16:30

1:18:00

• create your owned skills
• [I forgot the pause timer]

1:44:00

• AI And architecture
• . Self contain architecture
• . whats matter is the AI as the Full context
• Single Repo
• BDD Bonded context

1:48:52

2:00:00 ⭐

• speaking on test △
• he is a point about test coverage

2:12:00

• Business process
  • ↳ show the BPMN

2:14:00

• guidelines
• guard Rail
• Architecture Docs
• turn guidline to guard Rail
• Same standart for AI code than manual code

2:17:00

• lot of tools link to PR
  • github, code Rabit…
• But we dont do PR.
  • => Trunk Base developmet
  • -> Review session
• this is his opignon

2:22:14

2:24:00

• Confluence has MCP
• Nice But problem with out dated version
• => move it to git our wiki
• First time I heard that

2:29:00

• Do not let CC unzip jar File
• For this there is MCP java Doc

2:33:00 ⭐

• test for skill
  • evals
  • tessl ?

2:36:17

2:38:00

• grow Field project ?
  • to Review this part

2:40:00 ⭐

• Reverse engeneering Big System
• Review How it does it
• with pet clinic

2:44:00

• Review last slide Some one interesting But he didn’t show it.

2:48:38

2:52:22

2:53:00 [?]

• some framework Mimick the same as we Do scrum…
• for his is not the Best Approche

2:53:00 [?]

• split what an How

2:55:00 [?]

• Quarkus MCP + Dev Mode
• more and more tools Become AI first