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 joaquimscosta/arkhe-claude-plugins --skill spring-boot-securitygit clone --depth 1 https://github.com/joaquimscosta/arkhe-claude-pluginsWrote 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/joaquimscosta/arkhe-claude-plugins/spring-boot-security)<a href="https://agentmods.dev/skills/joaquimscosta/arkhe-claude-plugins/spring-boot-security"><img src="https://agentmods.dev/badge/skills/joaquimscosta/arkhe-claude-plugins/spring-boot-security/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/joaquimscosta/arkhe-claude-plugins/spring-boot-security"><img src="https://agentmods.dev/badge/skills/joaquimscosta/arkhe-claude-plugins/spring-boot-security.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00072 | $0.00887 |
| Opus 5.5 | $0.00029 | $0.00355 |
| Sonnet 5.5 | $0.00014 | $0.00177 |
| Haiku 4.5 | $0.00007 | $0.00089 |
Grade A, and why
spring-boot-security 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spring Security 7 for Spring Boot 4
Implements authentication and authorization with Spring Security 7's mandatory Lambda DSL.
Critical Breaking Changes
| Removed API | Replacement | Status |
|---|---|---|
and() method |
Lambda DSL closures | Required |
authorizeRequests() |
authorizeHttpRequests() |
Required |
antMatchers() |
requestMatchers() |
Required |
WebSecurityConfigurerAdapter |
SecurityFilterChain bean |
Required |
@EnableGlobalMethodSecurity |
@EnableMethodSecurity |
Required |
Core Workflow
- Create SecurityFilterChain → 2. Define authorization → 3. Configure authentication → 4. Add method security → 5. Handle CORS/CSRF
See WORKFLOW.md for detailed step-by-step instructions with code examples.
Quick Patterns
See EXAMPLES.md for complete working examples including:
- REST API Security with JWT/OAuth2 (Java + Kotlin)
- Form Login with Session Security and CSRF
- Method Security with @PreAuthorize and SpEL
- CORS Configuration for cross-origin APIs
- Password Encoder (Argon2 for Security 7)
Spring Boot 4 Specifics
- Lambda DSL is mandatory (no
and()chaining) - Argon2 password encoder:
Argon2PasswordEncoder.defaultsForSpring7() - CSRF for SPAs:
CookieCsrfTokenRepository.withHttpOnlyFalse() - @EnableMethodSecurity replaces
@EnableGlobalMethodSecurity
Detailed References
- Workflow: See WORKFLOW.md for detailed step-by-step security configuration
- Examples: See EXAMPLES.md for complete working code examples
- Troubleshooting: See TROUBLESHOOTING.md for common issues and Boot 4 migration
- Security Configuration: See references/SECURITY-CONFIG.md for complete SecurityFilterChain patterns
- Authentication: See references/AUTHENTICATION.md for UserDetailsService, password encoding
- JWT/OAuth2: See references/JWT-OAUTH2.md for resource server, token validation
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.
- yesterday First seen · 79 lines · 72 tokens per session scan A 7a196dea5753
spring-boot-security is a skill published in the GitHub repository joaquimscosta/arkhe-claude-plugins (21 stars, last pushed yesterday), licensed MIT. It adds 72 tokens to every session and 887 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-10-16.
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