Enhance the SKILL content to request to the agent to report when a GATE condition is checked

[cmoulliard]

Suggestion

I propose to enhance the SKILL content to request to the agent to log when a GATE condition is checked against a specific module according to the following Decision Table.

Having such information should help the user to figure out when it checks the agent logs (or using the interactive mode) which module has been processed, what the gate status was: PASS, SKIPPED or ALWAYS.

Unil now the following table is displayed within the terminal end og the migration process, is not clearly mentioned if it related to the GATE checks, etc

...
Validation Results
  ┌───────────────────────┬─────────┬────────────────────────────────────────────────────────────────────────────┐
  │         Check         │ Result  │                                   Notes                                    │
  ├───────────────────────┼─────────┼────────────────────────────────────────────────────────────────────────────┤
  │ Builds                │ PASS    │ ./mvnw clean compile -DskipTests → BUILD SUCCESS                           │
  ├───────────────────────┼─────────┼────────────────────────────────────────────────────────────────────────────┤
  │ No Spring deps        │ PASS    │ Zero org.springframework references in pom.xml                             │
  ├───────────────────────┼─────────┼────────────────────────────────────────────────────────────────────────────┤
  │ Has Quarkus           │ PASS    │ Quarkus BOM 3.23.0 + 7 extensions                                          │
  ├───────────────────────┼─────────┼────────────────────────────────────────────────────────────────────────────┤
  │ Tests pass            │ PASS    │ 1 test, 0 failures (DevServices auto-started MySQL via Testcontainers)     │
  ├───────────────────────┼─────────┼────────────────────────────────────────────────────────────────────────────┤
  │ Starts up             │ SKIPPED │ Requires external MySQL for production mode; DevServices works in dev/test │
  ├───────────────────────┼─────────┼────────────────────────────────────────────────────────────────────────────┤
  │ No leftover templates │ PASS    │ No Thymeleaf (th:) references remaining                                    │
  └───────────────────────┴─────────┴────────────────────────────────────────────────────────────────────────────┘
  ...

[cmoulliard]

I created a simple SKILL supporting the concept of the GATE Checks and here is the output that I got where the user can see clearly which module and GATE were checked

Now I have all the information. Here is the analysis report following the gate-driven protocol.

---

## Gate Execution Log

**Module 1 — JDK (Gate: ALWAYS):**
- EVALUATE: JDK installed is OpenJDK **25** (Temurin-25+36 LTS). Project `<java.version>` property is set to **21**.
- DECIDE: Gate is ALWAYS → proceed.
- EXECUTE: JDK 25 >= 21 requirement. **PASS**.
- LOG: JDK version 25 detected. Project targets Java 21. ✅

**Module 2 — Build System (Gate: pom.xml or build.gradle(.kts) present):**
- EVALUATE: `pom.xml` found at project root. No `build.gradle` or `build.gradle.kts` present.
- DECIDE: Gate = **PASS** → proceed.
- EXECUTE: Build tool is **Apache Maven 3.9.15**. Analyzing dependencies and plugins:

  **Parent POM:**
  - `org.springframework.boot:spring-boot-starter-parent:3.5.3`

  **Dependencies:**
  | Dependency | Scope |
  |---|---|
  | `spring-boot-starter-data-jpa` | compile |
  | `spring-boot-starter-thymeleaf` | compile |
  | `spring-boot-starter-web` | compile |
  | `spring-boot-devtools` | runtime (optional) |
  | `mysql-connector-j` | runtime |
  | `spring-boot-starter-test` | test |
  | `io.jsonwebtoken:jjwt:0.9.1` | compile |
  | ~~`spring-boot-starter-security`~~ | commented out |

  **Plugins:**
  | Plugin |
  |---|
  | `spring-boot-maven-plugin` |

  **Repositories:** Spring Milestones, Spring Snapshots (both repo + plugin repo).

- LOG: Maven build system with 7 dependencies and 1 plugin detected. ✅

---

## Analysis Report: spring-boot-todo-app

### Summary
- **JDK:** 25 (Temurin LTS) — project targets Java 21
- **Apache Maven:** 3.9.15
- **Agent:** Claude Code (CLI)
- **Model:** claude-opus-4-6
- **Modules completed:** 2/2
- **Checks passed:** 2/2
- **Token usage:** ~15,000 input / ~1,500 output
- **Estimated cost:** ~$0.35

[cmoulliard]

If I do the same using claude agent where the same SKILL has been registered, we got different results but neverthess the Module and GATE is mentioned

❯ /Users/cmoullia/code/quarkus/rewrite-mtool/migration-tool/applications/spring-boot-todo-app
❯ claude "Analyze the java application"

╭─── Claude Code v2.1.34 ─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│                                           │ Tips for getting started                                                                                                                    │
│               Welcome back!               │ Run /init to create a CLAUDE.md file with instructions for Claude                                                                           │
│                                           │ ─────────────────────────────────────────────────────────────────                                                                           │
│                                           │ Recent activity                                                                                                                             │
│                  ▐▛███▜▌                  │ No recent activity                                                                                                                          │
│                 ▝▜█████▛▘                 │                                                                                                                                             │
│                   ▘▘ ▝▝                   │                                                                                                                                             │
│       Opus 4.6 · API Usage Billing        │                                                                                                                                             │
│   ~/…/applications/spring-boot-todo-app   │                                                                                                                                             │
╰─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯

  Welcome to Opus 4.6

❯ Analyze the java application

⏺ Skill(gates-to-check)
  ⎿  Successfully loaded skill

⏺ I'll analyze this Java application using the gate-driven approach. Let me start by evaluating the project structure.

⏺ Searched for 3 patterns (ctrl+o to expand)

⏺ Good. Let me now read the module files and the project's pom.xml to evaluate the gates.

⏺ Read 3 files (ctrl+o to expand)

⏺ Now let me check the installed JDK version and read the source files to complete the analysis.

⏺ Bash(java -version 2>&1)
  ⎿  openjdk version "25" 2025-09-16 LTS
     OpenJDK Runtime Environment Temurin-25+36 (build 25+36-LTS)
     OpenJDK 64-Bit Server VM Temurin-25+36 (build 25+36-LTS, mixed mode, sharing)

⏺ Bash(mvn --version 2>&1 | head -3)
  ⎿  Apache Maven 3.9.15 (98b2cdbfdb5f1ac8781f537ea9acccaed7922349)
     Maven home: /opt/homebrew/Cellar/maven/3.9.15/libexec
     Java version: 25.0.2, vendor: Homebrew, runtime: /opt/homebrew/Cellar/openjdk/25.0.2/libexec/openjdk.jdk/Contents/Home

⏺ Read 6 files (ctrl+o to expand)

⏺ Now I have all the information needed. Here is the complete analysis.

  ---
  Module 1: JDK — Gate Check

  Gate: JDK 21+ required — ALWAYS (must evaluate)

  Gate result: PASS — JDK version is 25 (OpenJDK Temurin-25+36 LTS), which is >= 21. The pom.xml also declares <java.version>21</java.version> as the source/target level, which is
  compatible.

  ---
  Module 2: Build System — Gate Check

  Gate: Build system detection — pom.xml present at project root

  Gate result: PASS — pom.xml found at project root; no build.gradle or build.gradle.kts present. Build tool is Apache Maven.

  Build Tool Details

  - Build tool: Apache Maven 3.9.15
  - Java version (runtime): 25.0.2 (Homebrew)
  - Packaging: JAR (default, no explicit packaging element)

  Parent POM
  ┌────────────┬────────────────────────────┐
  │  Property  │           Value            │
  ├────────────┼────────────────────────────┤
  │ GroupId    │ org.springframework.boot   │
  ├────────────┼────────────────────────────┤
  │ ArtifactId │ spring-boot-starter-parent │
  ├────────────┼────────────────────────────┤
  │ Version    │ 3.5.3                      │
  └────────────┴────────────────────────────┘
  Dependencies
  ┌──────────────────────────┬───────────────────────────────┬───────────┬───────────────────┐
  │         GroupId          │          ArtifactId           │  Version  │       Scope       │
  ├──────────────────────────┼───────────────────────────────┼───────────┼───────────────────┤
  │ org.springframework.boot │ spring-boot-starter-data-jpa  │ (managed) │ compile           │
  ├──────────────────────────┼───────────────────────────────┼───────────┼───────────────────┤
  │ org.springframework.boot │ spring-boot-starter-thymeleaf │ (managed) │ compile           │
  ├──────────────────────────┼───────────────────────────────┼───────────┼───────────────────┤
  │ org.springframework.boot │ spring-boot-starter-web       │ (managed) │ compile           │
  ├──────────────────────────┼───────────────────────────────┼───────────┼───────────────────┤
  │ org.springframework.boot │ spring-boot-devtools          │ (managed) │ runtime, optional │
  ├──────────────────────────┼───────────────────────────────┼───────────┼───────────────────┤
  │ com.mysql                │ mysql-connector-j             │ (managed) │ runtime           │
  ├──────────────────────────┼───────────────────────────────┼───────────┼───────────────────┤
  │ org.springframework.boot │ spring-boot-starter-test      │ (managed) │ test              │
  ├──────────────────────────┼───────────────────────────────┼───────────┼───────────────────┤
  │ io.jsonwebtoken          │ jjwt                          │ 0.9.1     │ compile           │
  └──────────────────────────┴───────────────────────────────┴───────────┴───────────────────┘
  Note: spring-boot-starter-security is commented out in the pom.xml but not active.

  Plugins
  ┌──────────────────────────┬──────────────────────────┐
  │         GroupId          │        ArtifactId        │
  ├──────────────────────────┼──────────────────────────┤
  │ org.springframework.boot │ spring-boot-maven-plugin │
  └──────────────────────────┴──────────────────────────┘
  Repositories

  - Spring Milestones (https://repo.spring.io/milestone)
  - Spring Snapshots (https://repo.spring.io/snapshot)

  Application Architecture

  The application is a Spring Boot 3.5.3 Todo App with the following layers:
  ┌───────────────────┬─────────────────┬───────────────────────────────────────────────────────────────────────┐
  │       Layer       │      Class      │                            Key Annotations                            │
  ├───────────────────┼─────────────────┼───────────────────────────────────────────────────────────────────────┤
  │ Entry point       │ AppApplication  │ @SpringBootApplication                                                │
  ├───────────────────┼─────────────────┼───────────────────────────────────────────────────────────────────────┤
  │ Controller        │ TaskController  │ @Controller, @GetMapping, @PostMapping, @DeleteMapping, @ResponseBody │
  ├───────────────────┼─────────────────┼───────────────────────────────────────────────────────────────────────┤
  │ Entity            │ Task            │ @Entity, @Table, @Id, @GeneratedValue (Jakarta Persistence)           │
  ├───────────────────┼─────────────────┼───────────────────────────────────────────────────────────────────────┤
  │ Repository        │ TaskRepository  │ extends JpaRepository<Task, Long>                                     │
  ├───────────────────┼─────────────────┼───────────────────────────────────────────────────────────────────────┤
  │ Service interface │ TaskService     │ —                                                                     │
  ├───────────────────┼─────────────────┼───────────────────────────────────────────────────────────────────────┤
  │ Service impl      │ TaskServiceImpl │ @Service, @Autowired                                                  │
  └───────────────────┴─────────────────┴───────────────────────────────────────────────────────────────────────┘
  Key observations:
  - Uses Spring MVC (@Controller) with Thymeleaf templating for server-side rendering
  - Mixed controller: returns Thymeleaf views (home, error) and also has @ResponseBody JSON endpoints (POST/DELETE)
  - Uses Spring Data JPA with JpaRepository and pagination support (Page, Pageable)
  - Database: MySQL (mysql-connector-j)
  - Entity uses Jakarta Persistence (jakarta.persistence.*) — confirming Spring Boot 3.x compatibility
  - DI via @Autowired field injection throughout

  ---
  Analysis Report: spring-boot-todo-app

  Summary

  - JDK: 25 (Temurin-25+36 LTS); project targets Java 21
  - Build tool: Apache Maven 3.9.15
  - Framework: Spring Boot 3.5.3
  - Agent: Claude Code
  - Model: claude-opus-4-6
  - Modules completed: 2/2
  - Checks passed: 2/2