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 infraspecdev/tesseract --skill spring-securitygit clone --depth 1 https://github.com/infraspecdev/tesseractWrote 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/infraspecdev/tesseract/spring-security)<a href="https://agentmods.dev/skills/infraspecdev/tesseract/spring-security"><img src="https://agentmods.dev/badge/skills/infraspecdev/tesseract/spring-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/infraspecdev/tesseract/spring-security"><img src="https://agentmods.dev/badge/skills/infraspecdev/tesseract/spring-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 | $0.00056 | $0.01371 |
| Opus 5.5 | $0.00022 | $0.00548 |
| Sonnet 5.5 | $0.00011 | $0.00274 |
| Haiku 4.5 | $0.00006 | $0.00137 |
Grade A, and why
backend-spring-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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spring Security Review
Overview
Review Spring Security configuration for safe defaults: strong password hashing, CSRF protection on browser flows, deliberate authorization rules, appropriate session policy, and explicit choices on every relaxation.
Triggers when spring-boot-starter-security is detected and Spring Security config classes are in scope. Pairs with the security-engineer agent for cross-cutting security concerns beyond Spring Security framework wiring.
Version Compatibility
Supported: Spring Boot 3.x with Spring Security 6 (declared via spring_boot_versions: ["3.x"] in frontmatter).
Spring Boot 2.x with Spring Security 5 — LIMITED coverage. This is the most version-sensitive Spring skill.
Spring Security 5 uses WebSecurityConfigurerAdapter and a different DSL. The SB3 examples in this skill DO NOT translate directly. On SB2 codebases:
- SS1 (password encoder strength): applies identically — trust this finding
- SS5 (method-level
@PreAuthorize): applies identically — trust this finding - SS2 (CSRF), SS3 (authorization rules), SS4 (CORS), SS6 (session policy): the SB3 lambda DSL examples DO NOT match SB2's
WebSecurityConfigurerAdapterstyle. Findings on SB2 code may be incorrect — verify manually - SS7 (JWT/OAuth2): applies but config class shape differs
- SS8 (HTTPS), SS9 (auth provider), SS10 (logout): concept identical, syntax differs
Recommendation: For thorough SB2 coverage, follow Pattern B (sibling skill spring-security-sb2) per shield/skills/backend/EXTENDING-VERSIONS.md. Until then: trust SS1 and SS5 findings on SB2 code, treat SS2–SS4 findings as candidates to verify manually.
When to Use
- Reviewing
@EnableWebSecurityconfiguration classes - Reviewing
SecurityFilterChainbeans and their authorization rules - Reviewing
@PreAuthorize/@PostAuthorizeon service methods - Reviewing JWT/OAuth2 resource server configuration
When NOT to Use
- Application-layer authorization without Spring Security — different patterns
- Infrastructure-level network security (security groups, ACLs) — operational concern
- Generic input validation — use
api-design-review(A9)
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.
- 1mo ago First seen · 95 lines · 56 tokens per session scan A 132c29b0e875
backend-spring-security is a skill published in the GitHub repository infraspecdev/tesseract (5 stars, last pushed 3mo ago), licensed MIT. It adds 56 tokens to every session and 1,371 once invoked, about $0.0002 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 2026-09-03.
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