PUBLIC BETA · v0.2.0 · 37 skills
8gnc — Brand Growth Diagnostic
Find the constraint before you buy the tactic.
8gnc is a free, MIT-licensed brand growth diagnostic for Claude, ChatGPT, and Codex. One router identifies the primary constraint, marks the evidence and uncertainty, and selects the smallest useful sequence from 36 specialist methods.
Install 8gnc
One skills-only release, packaged for Claude Code, ChatGPT, and Codex. Direct GitHub installation is available now; directory availability follows platform review.
Claude Code
available nowInstall the public GitHub marketplace, then add the 8gnc plugin.
1. register the marketplace
/plugin marketplace add Branded-Mayhem-Collective-LLC/8gnc-plugin2. install the public beta
/plugin install 8gnc@8gnc
Codex
available nowPin the marketplace to the public-beta release, then install 8gnc.
1. register v0.2.0
codex plugin marketplace add Branded-Mayhem-Collective-LLC/8gnc-plugin --ref v0.2.02. install the public beta
codex plugin add 8gnc@8gnc
ChatGPT + Codex directory
under reviewThe skills-only directory release will appear here after OpenAI review and publication.
No dead install button. This card will link to the reviewed directory listing after publication.
Prefer to inspect the source? View 8gnc — Brand Growth Diagnostic on GitHub →
Optional, after install
Get public-beta updates.
Installation never requires an email. Subscribe only if you want release notes and occasional requests for beta feedback.
What you’ll also need
DataForSEO account ↗
Needed only for specialists that call the DataForSEO API. The diagnostic router and every method that relies on supplied evidence or host-provided public research work without an additional paid account.
Bring an unclear offer, a stalled brand, weak conversion, invisible search presence, or a sales motion that is not moving. 8gnc names the primary constraint, separates evidence from inference, and routes the work into the smallest useful method.
- ▸Starts with one diagnostic router instead of a 37-skill menu
- ▸Labels every input as observed, reported, inferred, or unknown
- ▸Routes across brand, product, content, visibility, conversion, and sales
- ▸Stops at a human decision gate before any external action
How it works
Questions
What does 8gnc actually do?
It diagnoses one primary brand or growth constraint, shows what evidence supports the call, names the gaps, and routes the work into the shortest useful method sequence across six disciplines.
Can it access our CRM or client systems?
No. Version 0.2.0 is skills-only. It can use evidence you provide, files exposed by the current host, lawful public research, and locally configured credentials where a specialist supports them.
Can it approve, publish, or send the work?
No. It drafts and recommends, then stops at a human decision gate. It cannot approve work, and approval of an artifact is not authorization to publish, deploy, send, purchase, or change an external system.
Is installation really ungated?
Yes. The public GitHub source and direct Claude and Codex commands require no email. The optional beta-updates form appears only after the install instructions.