# Article Semantics Audit

> Article Semantics Audit is a paid API for AI agents from agentreadiness.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-14).

Passively audits a public URL for article boundary semantics, returning an observation, threshold verdict, evidence source, limitations, and recommended action.

## Facts

- Endpoint: POST https://agentreadiness.halowerk.com/v1/article-semantics-audit?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/article-semantics-audit-5ffed96e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gz7fK0yjld0YEKrAbuW91

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability article-semantics-audit-5ffed96e -d '<json body>'
```

Example prompt: Can you audit https://myblog.com/post/why-ai-matters for article boundary semantics and tell me whether the page passes, what evidence you found, and what I should fix?

## When to prefer this

Choose this endpoint when you need a passive, read-only semantic audit of article boundary markup on a public webpage — especially for agent-readiness or structured content compliance checks. It is purpose-built for evaluating whether a page's article HTML semantics meet a defined criterion, returning a verdict with traceable evidence. Prefer it over generic HTML validators when you need an agent-oriented readiness verdict with actionable recommendations rather than a raw HTML error list.

## Known failure modes

- Target URL is unreachable or returns non-200 status — audit cannot retrieve public evidence
- Target is behind authentication or a paywall — passive check cannot access article content
- Malformed or non-HTTP(S) URL provided — normalization fails and request is rejected
- Page uses heavily JavaScript-rendered content that is invisible to passive fetch — evidence may be incomplete
- Target blocks crawlers via robots.txt or rate limiting — evidence fetch fails or is partial

## How this service works

Agent-readable article boundaries audit fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.

## Output

Returns a structured report containing: the observed article semantics on the target page, the evaluation threshold, a pass/fail verdict, the exact evidence source used, any limitations of the passive check, and a mode-specific recommended action — all without performing any login, form submission, or active exploitation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "target": {
   "type": "string",
   "maxLength": 2048,
   "minLength": 3,
   "description": "Public HTTP(S) URL or domain to inspect. A bare domain is normalized to HTTPS."
  },
  "context": {
   "type": "object",
   "description": "Optional non-secret correlation labels returned unchanged only in the request lifecycle.",
   "maxProperties": 12,
   "additionalProperties": {
    "type": [
     "string",
     "number",
     "boolean",
     "null"
    ]
   }
  },
  "baseline": {
   "type": [
    "object",
    "null"
   ],
   "description": "Optional baseline returned by a previous snapshot call.",
   "additionalProperties": true
  },
  "compare_url": {
   "type": "string",
   "maxLength": 2048,
   "minLength": 3,
   "description": "Optional public comparison URL. Used by change and monitoring services."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/article-semantics-audit-5ffed96e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentreadiness.halowerk.com](https://www.zero.xyz/host/agentreadiness.halowerk.com/llms.txt)