nw-database-technology-selection SKILL.md skillA
nw-database-technology-selection from nwave-ai/nwave is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nwave-ai/nwave/nw-database-technology-selection@git:20260320.d98f3cbPins git:20260320.d98f3cb in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nwave-ai/nwave
- Path
nWave/skills/nw-database-technology-selection/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260320.d98f3cb, committed Mar 20, 2026
- First version recorded
- Mar 17, 2026
- Size
- 5,305 bytes
- Repository stars
- 633
- License
- MIT
Database comparison catalogs, RDBMS vs NoSQL selection criteria, CAP/ACID/BASE theory, OLTP vs OLAP, and technology-specific characteristics.
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
# Database Technology Selection ## Selection Decision Framework Start with these questions: 1. Primary access patterns? (point lookups, range queries, graph traversals, full-text search) 2. Consistency guarantees? (strong ACID vs eventual consistency) 3. Expected scale? (data volume, concurrent users, read/write ratio) 4. Query complexity? (key-value, complex joins, aggregations, graph traversals) 5. Latency targets? (sub-ms caching, ms OLTP, second-range analytics) 6. Compliance requirements? (GDPR, CCPA, HIPAA, data residency) ## RDBMS Selection Guide ### PostgreSQL Strengths: Full ACID, advanced cost-based optimizer, rich indexes (B-tree, Hash, GiST, GIN, BRIN), JSONB | Best for: complex queries, mixed OLTP/analytics, geospatial (PostGIS), JSON+relational hybrid | Scaling: read replicas, partitioning, PgBouncer, Citus for horizontal | Watch: write-heavy needs tuning, vertical scaling limits ### Oracle Strengths: RAC clustering, Data Guard, Flashback, mature optimizer, partitioning | Best for: enterprise OLTP, mission-critical with vendor support, large-scale DW | Scaling: RAC horizontal, partitioning, Active Data Guard read replicas | Watch: licensing cost, vendor lock-in …
Read the whole file at its exact version.
How to install
mdr add nwave-ai/nwave/nw-database-technology-selection@sha256:9c05a1dc0f39eeb7The line at the top of this page pins the label git:20260320.d98f3cb, 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_jry5owox7uim6qev)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Mar 17, 2026 and Mar 20, 2026, about one every day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260320.d98f3cb latest | 2026-03-20 | d98f3cb | 5,305 B | A | view · diff |
| git:20260318.e6a0e19 | 2026-03-18 | e6a0e19 | 5,283 B | A | view · diff |
| git:20260317.1d16147 | 2026-03-17 | 1d16147 | 5,274 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 (5305 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
nwave-ai/nwave · 633 stars · license MIT · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jry5owox7uim6qev GET https://markdownregistry.com/api/v1/resolve?ref=nwave-ai/nwave/nw-database-technology-selection GET https://markdownregistry.com/api/v1/blob/9c05a1dc0f39eeb79f3000c1a1b8b35ae40530c1bdc569cabacd75d96478d1be
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.