cross-service-query-design SKILL.md skillA
cross-service-query-design from robsonkades/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add robsonkades/agent-skills/cross-service-query-design@git:20261001.2e77f4fPins git:20261001.2e77f4f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- robsonkades/agent-skills
- Path
skills/cross-service-query-design/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261001.2e77f4f, committed Oct 1, 2026
- Size
- 14,172 bytes
- Repository stars
- 3
- License
- Apache-2.0
Choose API composition or a read model when a query joins data owned by multiple services, a list needs cross-service filtering or ordering, or projection lag changes what a consumer may conclude. Define freshness, completeness, authorization, query bounds and rebuild. Excludes fan-out mechanics, event-store adoption and CDC operations.
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
# Cross-Service Query Design Choose a read path that can answer the consumer's actual question under change and failure. A joined response is a new contract: successful calls to every owner do not establish a common snapshot, an exact global page, or permission to return every field. This skill owns the choice and contract of the cross-service query. Keep an adequate existing API, local query or reporting solution when it satisfies that contract. It does not require extracting services or replacing mutable state with an event store. ## Discover the question before choosing the mechanism Inspect the endpoint and its consumers, domain rules, API/event contracts, ADRs, query plans, traces, access policies, incidents and recovery runbooks. Capture only evidence that changes the choice: - **Purpose and authority:** display, search, reconciliation, export or a decision authorizing an effect? Who owns each fact and who may change it? Can a missing/stale fact change eligibility? - **Query semantics:** predicates, join keys and cardinality, null/absence meaning, duplicates, sort/ties, totals, pagination and expected data growth. Which owner can identify candidates …
Read the whole file at its exact version.
How to install
mdr add robsonkades/agent-skills/cross-service-query-design@sha256:9ebd061758b04a1cThe line at the top of this page pins the label git:20261001.2e77f4f, 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_vqfjaao2t2ispbae)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 1, 2026.
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 (14172 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
robsonkades/agent-skills · 3 stars · license Apache-2.0 · pushed 2026-10-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vqfjaao2t2ispbae GET https://markdownregistry.com/api/v1/resolve?ref=robsonkades/agent-skills/cross-service-query-design GET https://markdownregistry.com/api/v1/blob/9ebd061758b04a1ca976dc5da85a328ac54dcce482543a260cba81f918edc52a
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.