302-frameworks-spring-boot-rest SKILL.md skillA
302-frameworks-spring-boot-rest 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/302-frameworks-spring-boot-rest@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/302-frameworks-spring-boot-rest/SKILL.md- Versions recorded
- 6
- Latest version
- v0.19.0, committed Sep 26, 2026
- First version recorded
- Apr 26, 2026
- Size
- 4,060 bytes
- Repository stars
- 461
- License
- Apache-2.0
Use when you need to design, review, or improve REST APIs with Spring Boot — including HTTP methods, resource URIs, status codes, DTOs, versioning, deprecation and sunset headers, content negotiation (JSON and vendor media types), ISO-8601 instants in DTOs, pagination/sorting/filtering, Bean Validation at the boundary, idempotency, ETag concurrency, HTTP caching, error handling, security, contract-first OpenAPI (OpenAPI Generator), controller advice, and problem details for errors. This should…
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
# Java REST API Design Principles Apply REST API design principles for Spring Boot applications. **What is covered in this Skill?** - HTTP methods (GET, POST, PUT, PATCH, DELETE) — semantic consistency - Resource URI design - HTTP status codes - Request/response DTOs with lean contracts - API versioning (URI, header, or media type — applied consistently) - Bean Validation at the boundary (@Valid/@Validated on controller inputs, 400 on failure) - Pagination, sorting, and filtering (Page/Pageable with caps) - ISO-8601 instants with offset (OffsetDateTime, Instant) in JSON contracts - Content negotiation (JSON default; vendor media types when meaningful) - Idempotency-Key support for POST creates; 409 Conflict for collisions - ETag concurrency with If-Match/If-None-Match; 412 Precondition Failed / 304 Not Modified - HTTP caching discipline (Cache-Control, ETag, Last-Modified) - Deprecation and sunset headers (Deprecation, Sunset, Link rel="successor-version)" - Error handling - API security (TLS, authentication, authorization, input validation) - API contract: OpenAPI file as source of truth for API-first (OpenAPI Generator) - Controller advice and problem details (RFC 7807) …
Read the whole file at its exact version.
How to install
mdr add jabrena/plinth/302-frameworks-spring-boot-rest@sha256:73cb1e92b896f520The 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_ki7ll2neyitr2ssl)
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 | 4,060 B | A | view · diff |
| v0.18.0 | 2026-08-01 | 26b0e71 | 4,060 B | A | view · diff |
| v0.17.0 | 2026-07-10 | aaee915 | 4,060 B | A | view · diff |
| v0.16.0 | 2026-06-15 | b73c9d3 | 3,740 B | A | view · diff |
| v0.15.0 | 2026-05-29 | a800339 | 3,740 B | A | view · diff |
| v0.15.0-SNAPSHOT | 2026-04-26 | 819f349 | 3,749 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 (4060 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_ki7ll2neyitr2ssl GET https://markdownregistry.com/api/v1/resolve?ref=jabrena/plinth/302-frameworks-spring-boot-rest GET https://markdownregistry.com/api/v1/blob/73cb1e92b896f520b7ce11e5b595200d6949d64e875e7aa3cfade2e78c05a0bf
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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.