know-if-its-working SKILL.md skillA
know-if-its-working from aidevgtm/gtm-cofounder is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add aidevgtm/gtm-cofounder/know-if-its-working@git:20260929.dfba153Pins git:20260929.dfba153 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- aidevgtm/gtm-cofounder
- Path
skills/15-know-if-its-working/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260929.dfba153, committed Sep 29, 2026
- First version recorded
- Jul 27, 2026
- Size
- 4,231 bytes
- Repository stars
- 334
- License
- MIT
Measure GTM with the metrics that matter (net developer retention, DREAM funnel) instead of vanity numbers. Use when the user has dashboards full of stars and pageviews but can't tell if go-to-market is working, or is optimizing acquisition over a leaky bucket.
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
# Know if it's working > The only early metric that matters is **net developer retention**. Without it, you're not running a funnel; you're running a colander. **Use this when:** you're tracking GitHub stars and pageviews and still can't answer "is GTM working?", or you're pouring effort into acquisition while new users quietly churn. ## The core idea Acquisition is worthless if users don't come back. Prove **retention** first; only then does spending on **acquisition** make sense. Most early founders optimize the top of the funnel while the bottom leaks. Fix that order. ## Framework: net developer retention (Frankl) > Of all the developers who first used the product in **Month 1**, how many used it in **Month 2? Month 3?** - Hold it **above 100%** (meaning existing cohorts *grow* through internal referral/expansion). - Below solid retention, **do not focus on acquisition**: you're filling a leaky bucket. - This single cohort question tells you more than every vanity chart combined. ## Framework: the DREAM metrics (Frankl) Measure one honest number per stage, not pageviews, not stars. | Stage | The metric that counts | |---|---| …
Read the whole file at its exact version.
How to install
mdr add aidevgtm/gtm-cofounder/know-if-its-working@sha256:83ee38460335ee68The line at the top of this page pins the label git:20260929.dfba153, 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_gaxkegs6bcwjrabt)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Jul 27, 2026 and Sep 29, 2026, about one every 32 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260929.dfba153 latest | 2026-09-29 | dfba153 | 4,231 B | A | view · diff |
| git:20260815.68251fd | 2026-08-15 | 68251fd | 4,204 B | A | view · diff |
| git:20260727.344f0cc | 2026-07-27 | 344f0cc | 4,207 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 (4231 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
aidevgtm/gtm-cofounder · 334 stars · license MIT · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_gaxkegs6bcwjrabt GET https://markdownregistry.com/api/v1/resolve?ref=aidevgtm/gtm-cofounder/know-if-its-working GET https://markdownregistry.com/api/v1/blob/83ee38460335ee68dad3f53062d7293fa9ee7acba046ad63e09a928f771b853e
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.