structural-similarity SKILL.md skillA
structural-similarity 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/structural-similarity@v0.1.0Pins v0.1.0 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/structural-similarity/SKILL.md- Versions recorded
- 6
- Latest version
- v0.1.0, committed Oct 9, 2026
- First version recorded
- Jul 12, 2026
- Size
- 13,367 bytes
- Repository stars
- 13
- License
- MIT
Training-free structural entity similarity over a sparq RDF graph with the opt-in sparq-sim crate: build an entity's (direction, predicate, neighbor) signature straight from the store's permutation indexes, score weighted Jaccard, Dice, or overlap similarity between two entities, and retrieve the top-k most-similar entities (most_similar) via index-driven candidate generation — no embeddings, no model, no training, correct under incremental updates. Use when adding co-citation / shared-context…
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-sim — structural entity similarity
`sparq-sim` is an **opt-in** crate that scores how structurally similar two RDF
entities are, and retrieves the top-`k` most-similar entities to a query — **without
any embedding model, training, or extra state**. An entity's *structural signature* is
the set of `(direction, predicate, neighbor)` pairs it already participates in (read
directly from sparq-core's SPO / OSP–OPS permutation indexes), and similarity is a
predicate-IDF-weighted Jaccard over two signatures. Because the indexes *are* the
feature store, signatures stay correct under incremental graph updates for free.
It consumes only sparq-core's **public read API** (dict lookups, range scans, the
planner's per-predicate stats). Only the opt-in `sparq-nlq` crate depends on it (plus a
`sparq-vectors` dev-dependency), and the default engine build does not compile it.
## Quickstart
`crates/sparq-sim/Cargo.toml` (omit `features` for the original one-hop-only build):
```toml
[dependencies]
sparq-core = { path = "../sparq-core" }
sparq-sim = { path = "../sparq-sim", features = ["multi-hop"] }
oxrdf = "*" # for oxrdf::{NamedNode, Term}
```
…Read the whole file at its exact version.
How to install
mdr add sparq-org/sparq/structural-similarity@sha256:c8aa744a9967d71eThe line at the top of this page pins the label v0.1.0, 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_ex7ltghtnnha3jej)
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Versions
The registry has recorded 6 versions of this file, between Jul 12, 2026 and Oct 9, 2026, about one every 18 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v0.1.0 latest | 2026-10-09 | f0b870d | 13,367 B | A | view · diff |
| v0.1.0 | 2026-09-03 | 1a63aa7 | 13,369 B | A | view · diff |
| v0.1.0 | 2026-07-25 | 9267288 | 13,365 B | A | view · diff |
| v0.1.0 | 2026-07-18 | a840d6c | 12,112 B | A | view · diff |
| v0.1.0 | 2026-07-16 | 760f3dc | 10,809 B | A | view · diff |
| v0.1.0 | 2026-07-12 | 3dddbcb | 9,803 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 (13367 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_ex7ltghtnnha3jej GET https://markdownregistry.com/api/v1/resolve?ref=sparq-org/sparq/structural-similarity GET https://markdownregistry.com/api/v1/blob/c8aa744a9967d71ed92715a03223505a9f523c038eee230af6cf67923a95ab73
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