sley-embed SKILL.md skillA
sley-embed from sley-lang/sley is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add sley-lang/sley/sley-embed@git:20261030.3a1db9dPins git:20261030.3a1db9d in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- sley-lang/sley
- Path
skills/sley-embed/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261030.3a1db9d, committed Oct 30, 2026
- First version recorded
- Oct 30, 2026
- Size
- 9,190 bytes
- Repository stars
- 13
- License
- Apache-2.0
Embed Sley in a Rust host or a WebAssembly build with the `sley_agent::embed` API - compile Python-dialect source in memory, call its functions under an exact fuel limit, and get deterministic results and program digests. Use when a Rust program needs to run untrusted or agent-written Sley code, or when a task mentions `compile_python`, `EmbedValue`, `CallResult`, `LARGE_CEILINGS` or `program_digest`.
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
# Embedding Sley
`sley_agent::embed` compiles a program written in Sley's Python dialect
inside the host process and calls its functions with an exact fuel limit.
Compilation takes the same path as `sley-agent try --familiar`: the text is
parsed into a structured frame, built into a candidate over a genesis held in
memory, and judged by the kernel. Only a Valid candidate becomes a `Module`.
There is no file system, clock or OS randomness in this path, so the same
source and options give the same program, results and fuel counts natively
and in `wasm32-unknown-unknown`.
For the dialect itself (types, what is refused, inline tests), see the `sley`
skill or `sley-agent help python`. The full reference is
[docs/EMBEDDING.md](../../docs/EMBEDDING.md). Everything here is pinned to
tag `v2.1.7`. The [Sley Playground](https://sleylang.org/playground) is this API
compiled to `wasm32-unknown-unknown` and run in a browser Web Worker.
## Cargo
```toml
[dependencies]
sley-agent = { git = "https://github.com/sley-lang/sley", tag = "v2.1.7", default-features = false, features = ["familiar"] }
```
| Feature | Default | Adds |
|---|---|---|
…Read the whole file at its exact version.
How to install
mdr add sley-lang/sley/sley-embed@sha256:8b7c594450dfc0ceThe line at the top of this page pins the label git:20261030.3a1db9d, 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_mlon72wrihmoubal)
0 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, all committed on Oct 30, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261030.3a1db9d latest | 2026-10-30 | 3a1db9d | 9,190 B | A | view · diff |
| git:20261030.4a5bc9c | 2026-10-30 | 4a5bc9c | 9,053 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 (9190 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
sley-lang/sley · 13 stars · license Apache-2.0 · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mlon72wrihmoubal GET https://markdownregistry.com/api/v1/resolve?ref=sley-lang/sley/sley-embed GET https://markdownregistry.com/api/v1/blob/8b7c594450dfc0ce4624aba403dd993aa8e342df102f076b1af5a7cc5824e623
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.