# Language Signal Decision – agentreadiness.halowerk.com

> Language Signal 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).

Fetches public evidence from a target URL and evaluates whether its language/content signals meet a documented criterion, returning a verdict, observation, evidence source, limitations, and recommended action.

## Facts

- Endpoint: POST https://agentreadiness.halowerk.com/v1/language-signal-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/language-signal-decision-agentreadiness-halowerk-com-62bc57f7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EdT3VaT_PisJJmK73sglu

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 language-signal-decision-agentreadiness-halowerk-com-62bc57f7 -d '<json body>'
```

Example prompt: Can you check whether https://example.com passes the language signal criterion for AI agent readiness — I want to see the verdict, what evidence was found, and any recommended action?

## When to prefer this

Choose this endpoint when you need a passive, read-only evaluation of language signal quality on a public URL for AI agent readiness purposes — especially when you need a structured verdict with evidence sourcing rather than a raw scrape. Prefer it over generic readability tools when the evaluation criterion is specifically about agent/AI-crawler-compatible language signals. It pairs well with sibling endpoints on the same platform (e.g. header semantics, citations, llms.txt) for a comprehensive agent-readiness audit.

## Known failure modes

- Target URL is unreachable or returns non-200 status — check cannot be completed
- Target URL requires authentication and no public content is accessible
- Malformed or disallowed URL provided — validation error returned
- No language signals detectable on the page — observation may be empty with a fail verdict
- Rate limiting or network timeouts may cause incomplete evidence collection

## How this service works

Language signal 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 result containing: the observation (what was found on the page), the threshold used for evaluation, a pass/fail verdict, the exact evidence source URL, any limitations of the passive check, and a mode-specific recommended action. No authentication, form submission, or active testing 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/language-signal-decision-agentreadiness-halowerk-com-62bc57f7/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)