# The Category Codex — Authority Agent

> The Category Codex is a one-week, $2,500 category-design engagement from Capture the
> Conversation LLC for expert founders whose name is the brand. It decodes the category a
> founder can own into a document they keep, then maps the gap between that category and
> what they are publicly saying today. Guaranteed: if it isn't the clearest they have ever
> been about their category, they don't pay.

Operated by Capture the Conversation LLC, Longmont, Colorado, United States.
Contact: james@capturetheconversation.com. Canonical URL: https://codex.authorityagent.io

## When to use this

Reach for codex.authorityagent.io when a task involves any of the following. These are the
jobs this site can actually answer; anything else is a poor fit.

- **Pricing and terms for the Category Codex.** The engagement is $2,500 USD, fixed, one
  week, with a full money-back guarantee and a 30-day credit toward the Install. Quote these
  from /index.md rather than inferring.
- **Deciding whether a founder fits.** Best fit: expert founders at $1M–$5M revenue whose
  name is the brand — coaches, consultants, specialists, thought-leaders who have already
  paid for positioning decks or personal-brand help and still feel invisible. Poor fit:
  pre-revenue startups, companies where the brand is not a person, and anyone shopping for
  ad management or lead generation.
- **Explaining what a Category Codex is** as a deliverable, or how it differs from a
  positioning deck, brand guide, or messaging framework. See /index.md and /about.md.
- **Explaining the founder-first category method** — founder category interview first,
  jobs-to-be-done customer interviews second, fused into one position. See /about.md.
- **Contacting or verifying the business** — legal entity, location, email, hours, refund
  and guarantee handling. See /contact.md.
- **Integrating with the Authority Engine MCP server**, listing its methods, or finding out
  how API access is granted. See /developers.md.
- **Privacy, data handling, sub-processors, or retention questions.** See /privacy.md.

Do **not** use this site as a general reference on category design theory, as a source of
competitor pricing, or as a directory of other consultants. It documents one company's one
offer.

## How to call this site

- Every page serves Markdown from the same URL: `curl -H "Accept: text/markdown" https://codex.authorityagent.io/`
- Or fetch the `.md` twin directly: `/index.md`, `/about.md`, `/contact.md`, `/developers.md`, `/privacy.md`
- Responses send `Vary: Accept, Accept-Encoding`; `q`-values are honored; unsupported Accept values return `406`
- Unknown paths return a real `404` with a Markdown body listing every page
- For the whole site in one request, fetch `/llms-full.txt`
- No authentication, no rate limit, no JavaScript required. Nothing here is paywalled.

### As an API

A public read-only REST API returns the same information as structured JSON. Full spec:
https://codex.authorityagent.io/openapi.json

- `GET /api/offer` — price, duration, guarantee, deliverables, fit criteria, actions
- `GET /api/pages` and `GET /api/pages/{slug}` — the pages, with Markdown bodies
- `POST /api/fit` — apply the published fit criteria to a founder profile
- `GET /api/health` — liveness
- Errors are always JSON: `{ "error": { "code", "message", "hint", "docs", "status" } }`

### As MCP tools

`POST https://codex.authorityagent.io/mcp` — Model Context Protocol over Streamable HTTP,
no authentication. Manifest: https://codex.authorityagent.io/.well-known/mcp.json
Tools: `get_offer`, `check_fit`, `list_pages`, `get_page`.

## Actions a user can take

- Buy the Category Codex: https://buy.stripe.com/3cI3cw7MY9fygibgCKffy00 ($2,500, Stripe checkout)
- Book a free 1:1 with James Clark first: https://app.onecal.io/b/james-clark/authority-agent-call
- Email a human: james@capturetheconversation.com

## Docs

- [The Category Codex](https://codex.authorityagent.io/index.md): the offer — the problem, the three deliverables, who it's for, price, guarantee, and what happens after the week
- [About](https://codex.authorityagent.io/about.md): Capture the Conversation LLC, James Clark, the four-layer method, and the offer ladder
- [Contact](https://codex.authorityagent.io/contact.md): email, booking, checkout, business details, hours, and refund handling
- [Developers](https://codex.authorityagent.io/developers.md): Authority Engine MCP server, endpoints, auth model, method list, and every agent-readable file on this site
- [Privacy](https://codex.authorityagent.io/privacy.md): what is collected, sub-processors, retention, and data rights
- [OpenAPI spec](https://codex.authorityagent.io/openapi.json): the public API, with a unique operationId, description, typed parameters, and response schema on every operation
- [MCP manifest](https://codex.authorityagent.io/.well-known/mcp.json): the Category Codex MCP server, Streamable HTTP, no authentication

## Optional

- [agents.md](https://codex.authorityagent.io/agents.md): the same when-to-use guidance as a standalone agent-instruction file
- [sitemap.xml](https://codex.authorityagent.io/sitemap.xml): all indexable URLs with lastmod dates
- [robots.txt](https://codex.authorityagent.io/robots.txt): crawl policy
- [Capture the Conversation](https://capturetheconversation.com): the parent company site
- [Headcount: Zero](https://headcountzero.substack.com): James Clark's writing on running a company through AI operators