federated-planning SKILL.md skillA
federated-planning 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/federated-planning@git:20261014.113f479Pins git:20261014.113f479 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/federated-planning/SKILL.md- Versions recorded
- 13
- Latest version
- git:20261014.113f479, committed Oct 14, 2026
- First version recorded
- Jul 11, 2026
- Size
- 48,249 bytes
- Repository stars
- 13
- License
- MIT
Cost-based federated SPARQL source selection + bind-vs-hash join planning over already-fetched source descriptors, plus an ANAPSID-style non-blocking streaming join with operator spill, via the opt-in sparq-fedplan crate. Use when planning a federated BGP across multiple SPARQL endpoints from their served statistics (VoID property/class partitions + mined scs: characteristic sets): deciding which sources can contribute to each triple pattern (HiBISCuS recall-safe pruning + CostFed skew-aware…
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-fedplan — cost-based federated source selection + join planning
`sparq-fedplan` plans a federated SPARQL **Basic Graph Pattern** (BGP) across several
remote endpoints **from statistics already in hand** — it never contacts the network. A
caller fetches each source's descriptor once (the W3C VoID document a `sparq-server`
serves at `/.well-known/void`, including the mined `scs:` characteristic sets), and the
planner decides, deterministically:
1. **which sources can contribute** to each triple pattern, and
2. **a join order + per-join bind-vs-hash algorithm** over the selected sources.
It is the **opt-in public surface** for cost-based federation planning. Add it
explicitly and enable the `fedplan` feature; it is **not** in sparq's default build
(`sparq-core`/`sparq-engine` stay lean, the wasm artifact is unchanged unless you pull it
in). There is no `sparq-core`/`sparq-engine` dependency — it plans over descriptors only.
## Add the dependency
```toml
[dependencies]
sparq-fedplan = { path = "crates/sparq-fedplan", features = ["fedplan"] }
oxrdf = { version = "0.3", features = ["rdf-12"] }
```
…Read the whole file at its exact version.
How to install
mdr add sparq-org/sparq/federated-planning@sha256:ce1385c9382d1e3bThe line at the top of this page pins the label git:20261014.113f479, 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_256urklilgzzhpzk)
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Versions
The registry has recorded 13 versions of this file, between Jul 11, 2026 and Oct 14, 2026, about one every 8 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261014.113f479 latest | 2026-10-14 | 113f479 | 48,249 B | A | view · diff |
| git:20261014.44bd71f | 2026-10-14 | 44bd71f | 48,132 B | A | view · diff |
| git:20261014.012ebfd | 2026-10-14 | 012ebfd | 47,495 B | A | view · diff |
| git:20261013.5e171b3 | 2026-10-13 | 5e171b3 | 47,402 B | A | view · diff |
| git:20261013.59cab35 | 2026-10-13 | 59cab35 | 46,627 B | A | view · diff |
| git:20261013.ffb11ec | 2026-10-13 | ffb11ec | 46,403 B | A | view · diff |
| git:20261012.ce47cf2 | 2026-10-12 | ce47cf2 | 45,968 B | A | view · diff |
| git:20261009.f0b870d | 2026-10-09 | f0b870d | 45,720 B | A | view · diff |
| git:20260718.5f93974 | 2026-07-18 | 5f93974 | 45,764 B | A | view · diff |
| git:20260712.86db90b | 2026-07-12 | 86db90b | 45,428 B | A | view · diff |
| git:20260712.4bfd086 | 2026-07-12 | 4bfd086 | 43,824 B | A | view · diff |
| git:20260711.3447ec1 | 2026-07-11 | 3447ec1 | 43,159 B | A | view · diff |
| git:20260711.b369f8f | 2026-07-11 | b369f8f | 41,838 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 (48249 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_256urklilgzzhpzk GET https://markdownregistry.com/api/v1/resolve?ref=sparq-org/sparq/federated-planning GET https://markdownregistry.com/api/v1/blob/ce1385c9382d1e3b7c5035eefb57cf45705a26c4511d8c4bd7b26da44cff5124
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.