Home / dayfinggg / openai-codex-agent-skills · GitHub

backend SKILL.md skillA

backend from dayfinggg/openai-codex-agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add dayfinggg/openai-codex-agent-skills/backend@git:20261105.e0d5bb2

Pins git:20261105.e0d5bb2 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: dayfinggg/openai-codex-agent-skills
Path: codex/skills/backend/SKILL.md
Versions recorded: 2
Latest version: git:20261105.e0d5bb2, committed Nov 5, 2026
First version recorded: Nov 5, 2026
Size: 1,928 bytes
Repository stars: 8
License: MIT

Changes backend HTTP contracts, security boundaries, structured logs, and background jobs. Use when creating or editing API endpoints, REST or JSON APIs, request validation, authentication, authorization, signed webhooks, file uploads, SSRF protection, logging, queues, workers, or cron and scheduled tasks. Excludes unrelated backend edits and repository-wide audits.

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

1. Read affected entry points, callers, configuration, and tests. Establish the requested behavior, failing layer, and existing client, access, and event contracts. Reproduce a reported defect when practical.
2. Load only matching references.
   - Read [API contracts](references/api-contracts.md) when changing HTTP requests, responses, validation, or API middleware.
   - Read [Security boundaries](references/security-boundaries.md) when changing authentication, authorization, webhooks, uploads, outbound requests, or an injection boundary.
   - Read [Structured logging](references/structured-logging.md) when changing event fields, correlation, redaction, or log delivery.
   - Read [Background jobs](references/background-jobs.md) when changing a producer, consumer, worker, scheduler, retry, or acknowledgment.
3. Establish installed versions from manifests, lockfiles, and deployment configuration. Read matching official mechanism documentation before implementation. Apply available language and testing guidance.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add dayfinggg/openai-codex-agent-skills/backend@sha256:87d9f5ef0761b696

The line at the top of this page pins the label git:20261105.e0d5bb2, 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.

Badge

[![mdr](https://markdownregistry.com/badge/art_ohzitqojmimlvjbz.svg)](https://markdownregistry.com/a/art_ohzitqojmimlvjbz)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, all committed on Nov 5, 2026.

version	committed	commit	size	audit
git:20261105.e0d5bb2 latest	2026-11-05	e0d5bb2	1,928 B	A	view · diff
git:20261105.39988c5	2026-11-05	39988c5	1,876 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (1928 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

GitHub

dayfinggg/openai-codex-agent-skills · 8 stars · license MIT · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ohzitqojmimlvjbz
GET https://markdownregistry.com/api/v1/resolve?ref=dayfinggg/openai-codex-agent-skills/backend
GET https://markdownregistry.com/api/v1/blob/87d9f5ef0761b696029d29540bddab1acd02c38703e5214fa363cf7145db9e43

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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