api-database-cockroachdb SKILL.md skillA
api-database-cockroachdb from agents-inc/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add agents-inc/skills/api-database-cockroachdb@git:20261016.afd0e14Pins git:20261016.afd0e14 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- agents-inc/skills
- Path
src/skills/api-database-cockroachdb/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261016.afd0e14, committed Oct 16, 2026
- First version recorded
- Mar 20, 2026
- Size
- 18,900 bytes
- Repository stars
- 26
- License
- MIT
CockroachDB distributed SQL -- transaction retries, multi-region, online schema changes, follower reads, PostgreSQL compatibility gaps.
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
# CockroachDB Patterns > **Quick Guide:** CockroachDB connects via the standard `pg` driver (PostgreSQL wire protocol). The single most important difference from PostgreSQL: **transaction retries are mandatory**. CockroachDB's serializable isolation means any transaction can fail with SQLSTATE `40001` -- your application MUST catch this and retry the entire transaction. Use `UUID` with `gen_random_uuid()` for primary keys (never `SERIAL` -- sequential IDs cause distributed hotspots). DDL runs as online schema changes in background jobs and **cannot be inside explicit transactions**. Use `AS OF SYSTEM TIME` for follower reads to reduce latency in multi-region deployments. --- <critical_requirements> ## CRITICAL: Before Using This Skill **(You MUST implement transaction retry logic for SQLSTATE `40001` errors -- CockroachDB WILL return serialization errors under normal operation, unlike PostgreSQL where they are rare)** **(You MUST use `UUID` with `gen_random_uuid()` for primary keys -- NEVER use `SERIAL` or sequential IDs, which cause distributed write hotspots)** …
Read the whole file at its exact version.
How to install
mdr add agents-inc/skills/api-database-cockroachdb@sha256:73ebfbebd4e01be6The line at the top of this page pins the label git:20261016.afd0e14, 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_ntoe2ub2j7bpw7gq)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Mar 20, 2026 and Oct 16, 2026, about one every 105 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.afd0e14 latest | 2026-10-16 | afd0e14 | 18,900 B | A | view · diff |
| git:20260328.47861b7 | 2026-03-28 | 47861b7 | 19,176 B | A | view · diff |
| git:20260320.cac8480 | 2026-03-20 | cac8480 | 18,895 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 (18900 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
agents-inc/skills · 26 stars · license MIT · pushed 2026-10-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ntoe2ub2j7bpw7gq GET https://markdownregistry.com/api/v1/resolve?ref=agents-inc/skills/api-database-cockroachdb GET https://markdownregistry.com/api/v1/blob/73ebfbebd4e01be6feb352096bca20f964b194bdfa933e6a62b7f7512b8a05b1
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.