distributed-transactions SKILL.md skillA

distributed-transactions from d-padmanabhan/agent-engineering-handbook is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add d-padmanabhan/agent-engineering-handbook/distributed-transactions@git:20260906.0766fec

Pins git:20260906.0766fec in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
d-padmanabhan/agent-engineering-handbook
Path
skills/distributed-transactions/SKILL.md
Versions recorded
3
Latest version
git:20260906.0766fec, committed Sep 6, 2026
First version recorded
Aug 12, 2026
Size
7,195 bytes
Repository stars
20
License
MIT

Designs and reviews cross-service consistency using Transactional Outbox/Inbox, Saga orchestration, Saga choreography, compensating actions, idempotency, and eventual consistency. Use when the user mentions outbox, inbox, saga, orchestration, choreography, compensation, distributed transaction, dual write, CDC relay, duplicate delivery, or cross-service workflow consistency.

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

# Distributed Transactions

Use this skill when one business operation spans services, databases, brokers, or external systems and cannot rely on one local ACID transaction.

## Non-Negotiables

- Prefer one local ACID transaction when the data can remain inside one ownership boundary.
- Every design must preserve declared business invariants across success,
  retries, concurrency, partial failure, compensation, and recovery. Never
  imply that eventual consistency or a Saga provides global ACID semantics.
- Never implement a database write followed by direct message publication as an unprotected dual write.
- Assume messages can be delayed, duplicated, reordered, and redelivered.
- Make externally visible commands and consumers idempotent at the business-effect boundary.
- Acknowledging or committing a message is not proof that the business effect occurred exactly once.
- Compensation is a new business action, not a database rollback. It can fail and may require human resolution.
- Persist workflow state, deadlines, attempts, and decisions durably. Do not keep authoritative Saga state only in process memory.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add d-padmanabhan/agent-engineering-handbook/distributed-transactions@sha256:dc87af5aa9bf4501

The line at the top of this page pins the label git:20260906.0766fec, 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_2k7jx2kotz2i7u2b.svg)](https://markdownregistry.com/a/art_2k7jx2kotz2i7u2b)

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

Versions

The registry has recorded 3 versions of this file, between Aug 12, 2026 and Sep 6, 2026, about one every 12 days.

versioncommittedcommitsizeaudit
git:20260906.0766fec latest2026-09-06 0766fec 7,195 BA view · diff
git:20260819.d23bb732026-08-19 d23bb73 6,970 BA view · diff
git:20260812.41607172026-08-12 4160717 7,070 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 (7195 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

d-padmanabhan/agent-engineering-handbook · 20 stars · license MIT · pushed 2026-10-30 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_2k7jx2kotz2i7u2b
GET https://markdownregistry.com/api/v1/resolve?ref=d-padmanabhan/agent-engineering-handbook/distributed-transactions
GET https://markdownregistry.com/api/v1/blob/dc87af5aa9bf45014bf2773c07c98f788fad58ea3bceef7955f58bd5842a5662

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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