hdt-format SKILL.md skillA
hdt-format from sparq-org/sparq is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add sparq-org/sparq/hdt-format@git:20261005.afb6badPins git:20261005.afb6bad in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- sparq-org/sparq
- Path
.claude/skills/hdt-format/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261005.afb6bad, committed Oct 5, 2026
- First version recorded
- Jun 13, 2026
- Size
- 5,327 bytes
- Repository stars
- 13
- License
- MIT
The HDT (Header-Dictionary-Triples) binary RDF archive format — layout, dictionary sections (Plain Front Coding), BitmapTriples with rank/select, .hdt.gz handling, and how the sparq-hdt crate wraps the `hdt` crate. Use when working on sparq-hdt (loading .hdt archives into a sparq Graph), reasoning about HDT decode performance, the id-level translation into sparq's Dict, the opt-in feature/MSRV gating, or HDT write-support 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
# HDT — Header Dictionary Triples Authored for the active HDT work. Ground truth: the `sparq-hdt` crate (`crates/sparq-hdt/src/lib.rs`, `Cargo.toml`; open work in beads — `bd list -l area:sparq-hdt`) and the upstream `hdt` crate (KonradHoeffner/hdt, MIT). Verify crate API against the pinned version before writing code. ## What HDT is HDT (rdfhdt.org, W3C member submission) is the de-facto **binary archive** format for RDF. A single self-contained file is split into three components — hence the name: - **H — Header.** RDF metadata about the dataset itself (VoID statistics, format, provenance) as plain triples. Queryable; only the head of the stream needs decoding to read it. - **D — Dictionary.** All distinct terms, stored compressed. The standard layout is a **FourSectionDictionary**: four sections (subjects-only, predicates, objects-only, and shared subject∧object terms), each **Plain Front Coded (PFC)** — terms are sorted and each stores only the byte-length of its common prefix with the previous term plus its suffix. A term maps to a dense integer **id** per section. - **T — Triples.** A **BitmapTriples** structure: the triples in SPO order as a …
Read the whole file at its exact version.
How to install
mdr add sparq-org/sparq/hdt-format@sha256:9ade4be6bdc94f68The line at the top of this page pins the label git:20261005.afb6bad, 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_ltvzewpgnyo4z6zz)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jun 13, 2026 and Oct 5, 2026, about one every 57 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261005.afb6bad latest | 2026-10-05 | afb6bad | 5,327 B | A | view · diff |
| git:20260613.b1ea87c | 2026-06-13 | b1ea87c | 5,338 B | A | view · diff |
| git:20260613.c30c40a | 2026-06-13 | c30c40a | 5,262 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 (5327 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
sparq-org/sparq · 13 stars · license MIT · pushed 2026-10-29 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ltvzewpgnyo4z6zz GET https://markdownregistry.com/api/v1/resolve?ref=sparq-org/sparq/hdt-format GET https://markdownregistry.com/api/v1/blob/9ade4be6bdc94f6812ad0d6a89bae0ffc93274f0040db7aeeb575d25e7898f67
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.