Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add Zhang-Henry/CoEvoSkills --skill evo-spring-boot-migrationgit clone --depth 1 https://github.com/Zhang-Henry/CoEvoSkillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/zhang-henry/coevoskills/evo-spring-boot-migration)<a href="https://agentmods.dev/skills/zhang-henry/coevoskills/evo-spring-boot-migration"><img src="https://agentmods.dev/badge/skills/zhang-henry/coevoskills/evo-spring-boot-migration/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/zhang-henry/coevoskills/evo-spring-boot-migration"><img src="https://agentmods.dev/badge/skills/zhang-henry/coevoskills/evo-spring-boot-migration.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00074 | $0.00431 |
| Opus 5 | $0.00037 | $0.00216 |
| Sonnet 5 | $0.00015 | $0.00086 |
| Haiku 4.5 | $0.00007 | $0.00043 |
Grade A, and why
evo-spring-boot-migration scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Spring Boot 2.7 → 3.2 Migration Skill
Overview
This skill migrates a Spring Boot 2.7.x / Java 8 microservice to Spring Boot 3.2.x / Java 21.
Migration Steps
- pom.xml: Update parent to Spring Boot 3.2.5, Java 21, replace jjwt with jjwt-api/impl/jackson 0.12.5, remove javax.xml.bind
- Namespaces: javax.persistence/validation/servlet → jakarta.*
- Security: WebSecurityConfigurerAdapter → SecurityFilterChain bean, EnableGlobalMethodSecurity → EnableMethodSecurity, antMatchers → requestMatchers, authorizeRequests → authorizeHttpRequests, lambda DSL
- HTTP Client: RestTemplate → RestClient
- Properties: Remove explicit Hibernate dialect (Hibernate 6 auto-detects)
Usage
import sys
sys.path.insert(0, '/app/environment/skills/evo-spring-boot-migration/scripts')
from run_migration import run_full_migration
run_full_migration('/workspace')
Individual Scripts
migrate_pom.py- Updates pom.xml dependencies and versionsmigrate_namespaces.py- Replaces javax.* with jakarta.* in all Java filesmigrate_security.py- Rewrites SecurityConfig for Spring Security 6migrate_resttemplate.py- Rewrites ExternalApiService to use RestClientmigrate_properties.py- Updates application.properties for Hibernate 6run_migration.py- End-to-end entry point that calls all of the above
What ships with it
6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 35 lines · 74 tokens per session scan A 2de62447caaf
evo-spring-boot-migration is a skill published in the GitHub repository Zhang-Henry/CoEvoSkills (66 stars, last pushed 22d ago), licensed Apache-2.0. It adds 74 tokens to every session and 431 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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