data-mapping SKILL.md skillA

data-mapping from amey-thakur/ai-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add amey-thakur/ai-skills/data-mapping@git:20260728.419e522

Pins git:20260728.419e522 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
amey-thakur/ai-skills
Path
skills/api-integration/data-mapping/SKILL.md
Versions recorded
1
Latest version
git:20260728.419e522, committed Jul 28, 2026
Size
1,850 bytes
Repository stars
14
License
MIT

Translate between an external service's data model and your own, handling mismatches, nulls, and enum drift explicitly. Use when integrating a service whose model differs from yours.

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

# Data mapping

Two systems rarely agree on shape, naming, or what a field means. The
mapping layer is where those disagreements are resolved, and doing it
implicitly is how wrong data enters your system quietly.

## Method

1. **Map explicitly at the boundary.** One translation layer between
   their model and yours, so the rest of your code never sees their
   shape (see third-party-integration).
2. **Never store their identifiers as your primary keys.** Their
   identifier is a foreign reference, and coupling your keys to it makes
   provider migration nearly impossible.
3. **Handle unknown enum values without failing.** Providers add values,
   and a strict parser turns a routine provider change into an outage.
4. **Distinguish absent from null from empty.** These mean different
   things and providers use them inconsistently, so decide the mapping
   deliberately (see null-semantics).
5. **Validate on the way in.** Their data is untrusted input regardless
   of the provider's reputation (see input-validation).
6. **Record the raw payload alongside the mapped result.** When a
   mapping bug is found, the original is what allows reprocessing (see
   change-data-capture).
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add amey-thakur/ai-skills/data-mapping@sha256:84be0b25ec5c7108

The line at the top of this page pins the label git:20260728.419e522, 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 badge

[![mdr](https://markdownregistry.com/badge/art_5oxhi5xxkmoo32p3.svg)](https://markdownregistry.com/a/art_5oxhi5xxkmoo32p3)

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

Versions

The registry has recorded 1 version of this file, committed on Jul 28, 2026.

versioncommittedcommitsizeaudit
git:20260728.419e522 latest2026-07-28 419e522 1,850 BA 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 (1850 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

amey-thakur/ai-skills · 14 stars · license MIT · pushed 2026-09-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_5oxhi5xxkmoo32p3
GET https://markdownregistry.com/api/v1/resolve?ref=amey-thakur/ai-skills/data-mapping
GET https://markdownregistry.com/api/v1/blob/84be0b25ec5c7108716e8181d973362e751671d0646994a33309797b752bb89d

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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