substrate SKILL.md skillA
substrate 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/substrate@git:20261014.012ebfdPins git:20261014.012ebfd in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- sparq-org/sparq
- Path
skills/substrate/SKILL.md- Versions recorded
- 12
- Latest version
- git:20261014.012ebfd, committed Oct 14, 2026
- First version recorded
- Jul 10, 2026
- Size
- 19,589 bytes
- Repository stars
- 13
- License
- MIT
The opt-in shared zero-overhead evaluation substrate for the sparq engine and the reasoners — id-tuple row/key/posting vocabulary (`rows`), the XSD numeric value tower (`numeric`), the four id-tuple join kernels (`join`), and the SPARQL term total order (`compare`). All features are DEFAULT-OFF; opt in to exactly the slice you need. Use this crate when wiring a new reasoner that shares joins or numeric evaluation with the engine, or when working on the sparq-substrate crate itself. sq-qonbz.4.
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
# sparq-substrate
`sparq-substrate` is the leaf crate (below `sparq-engine`, zero-overhead) that hosts the
id-tuple evaluation primitives shared between the SPARQL engine and every reasoner. It depends
ONLY on `sparq-core` — no cycle with `sparq-engine` — so both consumers can share one join
kernel / numeric value tower with no dependency problem.
All four modules are gated behind **DEFAULT-OFF** cargo features; enabling one never forces a
heavy dependency on the engine's or the wasm bundle's build graph.
## Four public modules
### `rows` — `#[cfg(feature = "rows")]`
The shared id-tuple vocabulary: `SmallVec`-based `Row` (`[Id; 4]`), `Key` (`[Id; 2]`) and
`Posting` (`[usize; 2]`) aliases over the `sparq-core` dictionary `Id = u32`, plus the
re-exported inline-integer id helpers `inline_id_of_int`, `is_inline`, and `NO_ID`.
```toml
[dependencies]
sparq-substrate = { git = "https://github.com/sparq-org/sparq", tag = "v0.1.6", features = ["rows"] }
```
```rust,ignore
use sparq_substrate::rows::{Id, Row, Key, Posting, inline_id_of_int, is_inline, NO_ID};
let mut row: Row = Row::new(); // SmallVec<[Id; 4]> — inline up to 4 columns, no alloc
…Read the whole file at its exact version.
How to install
mdr add sparq-org/sparq/substrate@sha256:2bbd61f87dd752e1The line at the top of this page pins the label git:20261014.012ebfd, 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_amyxijsg6wfkorqn)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 12 versions of this file, between Jul 10, 2026 and Oct 14, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261014.012ebfd latest | 2026-10-14 | 012ebfd | 19,589 B | A | view · diff |
| git:20261009.21f6380 | 2026-10-09 | 21f6380 | 19,597 B | A | view · diff |
| git:20261009.f0b870d | 2026-10-09 | f0b870d | 18,142 B | A | view · diff |
| git:20261005.724e85d | 2026-10-05 | 724e85d | 18,511 B | A | view · diff |
| git:20261005.cd22e03 | 2026-10-05 | cd22e03 | 18,347 B | A | view · diff |
| git:20260922.4b0c17a | 2026-09-22 | 4b0c17a | 18,035 B | A | view · diff |
| git:20260920.4b37254 | 2026-09-20 | 4b37254 | 18,035 B | A | view · diff |
| git:20260726.6e8ef08 | 2026-07-26 | 6e8ef08 | 18,035 B | A | view · diff |
| git:20260726.b3210a5 | 2026-07-26 | b3210a5 | 14,409 B | A | view · diff |
| git:20260710.6df3750 | 2026-07-10 | 6df3750 | 14,192 B | A | view · diff |
| git:20260710.c05c965 | 2026-07-10 | c05c965 | 13,424 B | A | view · diff |
| git:20260710.dacb6de | 2026-07-10 | dacb6de | 11,176 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 (19589 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 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_amyxijsg6wfkorqn GET https://markdownregistry.com/api/v1/resolve?ref=sparq-org/sparq/substrate GET https://markdownregistry.com/api/v1/blob/2bbd61f87dd752e110a818aec3878481a9dccd38cf931c4097d7ed63f7effe4e
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.