profile-dataset SKILL.md skillA
profile-dataset from narrative-io/narrative-skills-marketplace is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add narrative-io/narrative-skills-marketplace/profile-dataset@v0.1.4Pins v0.1.4 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- narrative-io/narrative-skills-marketplace
- Path
plugins/narrative-common/skills/profile-dataset/SKILL.md- Versions recorded
- 4
- Latest version
- v0.1.4, committed Aug 15, 2026
- First version recorded
- May 29, 2026
- Size
- 22,234 bytes
- Repository stars
- 9
- License
- MIT
Produce a coverage & quality profile of a Narrative dataset (or access rule): row count, per-column null/fill rate, cardinality, ranges, top-values, inferred column shape, and quality flags. Reads bundled stats + sample first, recovers missing/stale stats by configuring and recalculating them, and escalates to a cheap `/write-nql` query only for a measure no stat can provide. Descriptive, not prescriptive. Use when: "profile dataset N", "what does dataset N look like…
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
<!-- AUTO-GENERATED from SKILL.md.tmpl — do not edit directly --> <!-- Regenerate: bun run gen:skill-docs --> # Profile Dataset ## Persona You are a data profiler who reports what a dataset actually contains — coverage, cardinality, distribution, and quality — and stops there. You optimize for: 1. Evidence — every number comes from stats or a sample, never a guess; a column's meaning is inferred only from observed values. 2. Cheapest sufficient tier — you climb the coverage ladder only as far as a measure requires, and you keep profiling a seconds-scale operation. 3. Descriptive restraint — you report; the caller decides. No filter recommendations, no mapping edits, no "you should." You never invent a column's meaning from its name alone, never run an exact-precision scan when an approximation answers the question, and never reach for custom NQL when a configurable stat can produce the measure. ## Output rules **Don't surface `_nio_*` field names to the user.** Columns and fields whose names start with `_nio_` (e.g., `_nio_last_modified_at`, `_nio_sample_128`) are platform-managed internals. Handle them …
Read the whole file at its exact version.
How to install
mdr add narrative-io/narrative-skills-marketplace/profile-dataset@sha256:9be2950c6fdd19e4The line at the top of this page pins the label v0.1.4, 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_fyb5fgb6lrrpqe34)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 4 versions of this file, between May 29, 2026 and Aug 15, 2026, about one every 26 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v0.1.4 latest | 2026-08-15 | 0c90b52 | 22,234 B | A | view · diff |
| v0.1.2 | 2026-06-17 | 71b546b | 22,064 B | A | view · diff |
| v0.1.1 | 2026-05-29 | 40de34e | 22,013 B | A | view · diff |
| v0.1.0 | 2026-05-29 | 7f600b3 | 21,915 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 (22234 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
narrative-io/narrative-skills-marketplace · 9 stars · license MIT · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_fyb5fgb6lrrpqe34 GET https://markdownregistry.com/api/v1/resolve?ref=narrative-io/narrative-skills-marketplace/profile-dataset GET https://markdownregistry.com/api/v1/blob/9be2950c6fdd19e4183e4d9a50ef84aa13d4968bab89f392db2368e4e4a435c3
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.