checkpoint skillA
checkpoint is agent-read markdown (skill) from ymm-oss/fsl: Reconcile tasks/active.md with Git, changed files, and observed verification before compaction, clearing, or handoff..
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
mdr add ymm-oss/fsl/checkpoint@git:20260802.de79983mdr add ymm-oss/fsl/checkpoint@sha256:a7b32af416d64e4aPin 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.
[](https://markdownregistry.com/a/art_t6vhhumka2t2xf62)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260802.de79983 latest | 2026-08-02 | de79983 | 1,280 B | A | view · diff |
| git:20260713.90c0e23 | 2026-07-13 | 90c0e23 | 954 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 (1280 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
ymm-oss/fsl · 27 stars · license Apache-2.0 · pushed 2026-09-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_t6vhhumka2t2xf62 GET https://markdownregistry.com/api/v1/resolve?ref=ymm-oss/fsl/checkpoint GET https://markdownregistry.com/api/v1/blob/a7b32af416d64e4a7c64f4c81a9589180578b5059254ea58aed531a8bcd2f67a
Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.