304-frameworks-spring-boot-security SKILL.md skillA
304-frameworks-spring-boot-security from jabrena/plinth is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jabrena/plinth/304-frameworks-spring-boot-security@v0.19.0Pins v0.19.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jabrena/plinth
- Path
skills/304-frameworks-spring-boot-security/SKILL.md- Versions recorded
- 6
- Latest version
- v0.19.0, committed Sep 26, 2026
- First version recorded
- Apr 26, 2026
- Size
- 2,878 bytes
- Repository stars
- 461
- License
- Apache-2.0
Use when you need to design, review, or improve security in Spring Boot applications — including SecurityFilterChain, OAuth2/JWT resource server patterns, form login basics, method security (@PreAuthorize), CSRF and CORS for APIs, session fixation, security headers, exception handling, password encoding, and sensitive-data-safe logging. This should trigger for requests such as Add Spring Boot security support; Review Spring Boot security configuration; Improve API authorization in Spring Boot…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Spring Boot Security Guidelines Apply Spring Boot security best practices with secure-by-default API boundaries. **What is covered in this Skill?** - Spring Security configuration and SecurityFilterChain setup - Authentication and authorization policies for endpoints - Method-level security (@PreAuthorize / @Secured) - Principle of least privilege for roles and scopes - Secure error handling and denial responses - Sensitive data handling in logs and responses **Scope:** Apply recommendations based on the reference rules and good/bad examples. ## Constraints Before applying security changes, ensure the project compiles. After improvements, run full verification. - **MANDATORY**: Run `./mvnw compile` or `mvn compile` before applying any change - **SAFETY**: If compilation fails, stop immediately - **VERIFY**: Run `./mvnw clean verify` or `mvn clean verify` after applying improvements - **BEFORE APPLYING**: Read the reference for detailed rules and examples ## When to use this skill - Add Spring Boot security support - Review Spring Boot security configuration - Improve API authorization in Spring Boot - Add JWT resource server security in Spring Boot …
Read the whole file at its exact version.
How to install
mdr add jabrena/plinth/304-frameworks-spring-boot-security@sha256:81e8b156152cf211The line at the top of this page pins the label v0.19.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_d7pxfyxkrht7lthq)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Apr 26, 2026 and Sep 26, 2026, about one every 31 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v0.19.0 latest | 2026-09-26 | 9569c35 | 2,878 B | A | view · diff |
| v0.18.0 | 2026-08-01 | 26b0e71 | 2,878 B | A | view · diff |
| v0.17.0 | 2026-07-10 | aaee915 | 2,878 B | A | view · diff |
| v0.16.0 | 2026-06-15 | b73c9d3 | 2,889 B | A | view · diff |
| v0.15.0 | 2026-05-29 | a800339 | 2,889 B | A | view · diff |
| v0.15.0-SNAPSHOT | 2026-04-26 | 899d988 | 2,898 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2878 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
jabrena/plinth · 461 stars · license Apache-2.0 · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_d7pxfyxkrht7lthq GET https://markdownregistry.com/api/v1/resolve?ref=jabrena/plinth/304-frameworks-spring-boot-security GET https://markdownregistry.com/api/v1/blob/81e8b156152cf211e325bee7d8772dc513f253fae7f195ed91c727ef5a915667
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Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.