ymm-oss/fsl · .claude/skills/add-language-feature/SKILL.md

add-language-feature skillA

add-language-feature is agent-read markdown (skill) from ymm-oss/fsl: Scaffold and verify a new native Rust FSL language feature while keeping syntax, lowering, symbolic/concrete semantics, docs, skill reference, tests, and changelog coupled..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add ymm-oss/fsl/add-language-feature@git:20260901.2ed7eba
Exact content
mdr add ymm-oss/fsl/add-language-feature@sha256:51efcf3e9244f5ea

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_uc2fq4szeetw3kqg.svg)](https://markdownregistry.com/a/art_uc2fq4szeetw3kqg)

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Versions

versioncommittedcommitsizeaudit
git:20260901.2ed7eba latest2026-09-01 2ed7eba 2,296 BA view · diff
git:20260828.927728f2026-08-28 927728f 2,163 BA view · diff
git:20260808.b4705352026-08-08 b470535 2,164 BA view · diff
git:20260713.90c0e232026-07-13 90c0e23 2,071 BA view · diff
git:20260703.bdabb9b2026-07-03 bdabb9b 3,590 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2296 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

GitHub

ymm-oss/fsl · 26 stars · license Apache-2.0 · pushed 2026-09-17 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_uc2fq4szeetw3kqg
GET https://markdownregistry.com/api/v1/resolve?ref=ymm-oss/fsl/add-language-feature
GET https://markdownregistry.com/api/v1/blob/51efcf3e9244f5ea92ce692fdf0e06fe5471f0e7c990c97ea4e00ffac9b7b5d3

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.