backend-patterns SKILL.md skillA
backend-patterns from kensaurus/cursor-kenji is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add kensaurus/cursor-kenji/backend-patterns@git:20261006.39320f8Pins git:20261006.39320f8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- kensaurus/cursor-kenji
- Path
skills/backend-patterns/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261006.39320f8, committed Oct 6, 2026
- First version recorded
- Aug 20, 2026
- Size
- 8,409 bytes
- Repository stars
- 9
- License
- MIT
Apply backend patterns — queues, caching, rate limits, serverless/edge. Use when "queue jobs", "caching layer", "rate limiting", "server actions", or "edge function". Which architecture to pick → audit-backend-architecture.
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
# Backend Patterns Skill **Degree of freedom: MIXED.** Which pattern to apply `[HIGH freedom]`; existing-architecture probes and the validation list `[LOW freedom — run exactly]`. ## How to reason 1. **Observe** — existing server/api/actions, ORM, queues, cache 2. **Interpret** — missing pattern vs duplicate vs wrong layer 3. **Classify** — reuse / add-queue / add-cache / add-rate-limit / edge-fn 4. **Severity** — unauthenticated mutation outranks a missing cache ## Worked example > **Observe:** `createOrder` sends email inline; no Inngest/queue; checkout p95 4s. > **Interpret:** confirmation is post-response work, not request-path. > **Classify:** `after()` or an `order/created` job; keep the write transactional. > **Verify:** order row commits; email/inventory run after response; retries do not double-charge. ## Self-critique before reporting - **Existing first** — searched server/api/actions before adding a second pattern - **Auth + validate** — every mutation checks session and Zod - **Idempotent** — retries on the new path do not double-apply - **Right owner** — which architecture to pick → `audit-backend-architecture` …
Read the whole file at its exact version.
How to install
mdr add kensaurus/cursor-kenji/backend-patterns@sha256:3efcfef72c279bddThe line at the top of this page pins the label git:20261006.39320f8, 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_vqe4e7lo5ajlll5r)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Aug 20, 2026 and Oct 6, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261006.39320f8 latest | 2026-10-06 | 39320f8 | 8,409 B | A | view · diff |
| git:20260923.cf348bd | 2026-09-23 | cf348bd | 12,558 B | A | view · diff |
| git:20260912.33d48b1 | 2026-09-12 | 33d48b1 | 12,751 B | A | view · diff |
| git:20260828.284b0b3 | 2026-08-28 | 284b0b3 | 12,825 B | A | view · diff |
| git:20260821.2a41031 | 2026-08-21 | 2a41031 | 12,640 B | A | view · diff |
| git:20260820.950107c | 2026-08-20 | 950107c | 11,749 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 (8409 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
kensaurus/cursor-kenji · 9 stars · license MIT · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vqe4e7lo5ajlll5r GET https://markdownregistry.com/api/v1/resolve?ref=kensaurus/cursor-kenji/backend-patterns GET https://markdownregistry.com/api/v1/blob/3efcfef72c279bddef362c2f4dc454a4eafb0f8445c5117b3a050ade68461905
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
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.
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