sentinel-probe skillA
sentinel-probe is agent-read markdown (skill) from guust-franssens/tableau-to-powerbi-migration: Test-only skill used to determine whether repository skills are visible to a custom-agent subagent. Contains a unique sentinel token. Not part of the migration pipeline..
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 guust-franssens/tableau-to-powerbi-migration/sentinel-probe@git:20260730.fec60c5mdr add guust-franssens/tableau-to-powerbi-migration/sentinel-probe@sha256:3c20d070873f57ebPin 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_uuosgzecmfdv3h7n)
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Versions
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 (486 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
guust-franssens/tableau-to-powerbi-migration · 14 stars · license MIT · pushed 2026-09-17 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_uuosgzecmfdv3h7n GET https://markdownregistry.com/api/v1/resolve?ref=guust-franssens/tableau-to-powerbi-migration/sentinel-probe GET https://markdownregistry.com/api/v1/blob/3c20d070873f57eb20db9fac812134b84bfb71bda141e6605388aee4eaf54c22
Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.