cohort-analysis skillA
cohort-analysis is agent-read markdown (skill) from gtmagents/gtm-agents: Standard method for slicing bookings, pipeline, and retention cohorts.
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 gtmagents/gtm-agents/cohort-analysis@git:20251119.8c446bfmdr add gtmagents/gtm-agents/cohort-analysis@sha256:c03ab7872009d009Pin 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_peqfjaix6cr4x7r7)
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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 (1265 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
gtmagents/gtm-agents · 406 stars · license Apache-2.0 · pushed 2026-04-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_peqfjaix6cr4x7r7 GET https://markdownregistry.com/api/v1/resolve?ref=gtmagents/gtm-agents/cohort-analysis GET https://markdownregistry.com/api/v1/blob/c03ab7872009d009f004863dc9c58cbf87f33a4d834f45d109981c8d1a742975
Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.