# Heading Outline Decision – agentreadiness.halowerk.com

> Heading Outline Decision – agentreadiness.halowerk.com 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 fetches public evidence from a target URL and evaluates whether its heading outline meets a documented criterion, returning a verdict, observation, threshold, evidence source, limitations, and recommended action.

## Facts

- Endpoint: POST https://agentreadiness.halowerk.com/v1/heading-outline-decision?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/heading-outline-decision-agentreadiness-halowerk-com-76b3f7bf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ztkxUrPpOxMgAS7Ms6ml3

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 heading-outline-decision-agentreadiness-halowerk-com-76b3f7bf -d '<json body>'
```

Example prompt: Can you check whether https://example.com has a well-structured heading outline — I want to know if it passes the heading hierarchy criterion and what evidence was found?

## When to prefer this

Choose this endpoint when you need a passive, read-only evaluation of a public webpage's heading outline structure — particularly for AI agent readiness assessments, pre-launch content audits, or post-migration checks. Prefer it over general SEO crawlers when you need a structured verdict with explicit evidence sourcing and a documented criterion, and when you must avoid any active probing, login attempts, or form submissions.

## Known failure modes

- Target URL is unreachable or returns non-200 status, resulting in an error or inconclusive verdict
- Malformed or non-HTTP(S) URL causes input validation failure
- Page uses JavaScript-rendered headings that the passive fetch cannot access, leading to incomplete evidence
- Rate limiting or bot-blocking on the target prevents evidence retrieval
- Baseline or compare_url schemas mismatch, causing comparison to fail

## How this service works

Heading outline decision 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 object containing the observation (what was found), the threshold (the criterion being evaluated), the verdict (pass/fail), the exact evidence source (where the data came from), any limitations of the check, and a mode-specific recommended action. No login, payload injection, or form submission is performed.

## 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/heading-outline-decision-agentreadiness-halowerk-com-76b3f7bf/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)