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Header Semantics Repair Plan
x402
Header Semantics Repair Plan 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 its HTTP header semantics, returning an observation, threshold, verdict, evidence source, limitations, and a concrete repair action.
Price / call$0.001
Success—
StatusUnknown
How this service works
Header semantics repair plan 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 header semantics evidence gathered passively from the target URL, the threshold criterion being evaluated, a pass/fail verdict, the exact evidence source, identified limitations of the check, and a mode-specific repair action the site owner can take to remediate issues.
Example use cases
Pre-launch agent-readiness audit
“Before we go live, can you run a header semantics check on https://staging.mycompany.com and tell me what needs to be fixed so AI agents can properly read the site?”
Debugging AI crawler rejection
“Our content isn't being picked up by AI crawlers — can you inspect the headers on https://blog.acme.io and give us a verdict on what's broken and how to repair it?”
Monitoring header regressions after deploy
“We just deployed a new version — can you compare the header semantics on https://app.widgetco.com against our previous baseline and flag anything that regressed?”
Technical details
Endpoint
POSThttps://agentreadiness.halowerk.com/v1/header-semantics-repair?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a passive, read-only audit of HTTP header semantics for a public URL specifically to assess and improve AI agent readiness. It is especially useful when you want actionable repair guidance rather than just a raw header dump, and when you need a structured verdict with evidence citations. Prefer it over generic HTTP inspection tools when the goal is agent/crawler compatibility rather than general security or performance auditing.
Side effects
- Target URL is unreachable or returns a non-public response, preventing evidence collection
- Target domain is malformed or fails normalization, resulting in a validation error
- Rate limits or firewall rules on the target block passive inspection
- Baseline object is malformed or incompatible, causing comparison to fail
- Target redirects in a loop or returns ambiguous headers, leading to inconclusive verdict
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| target | string | Public HTTP(S) URL or domain to inspect. A bare domain is normalized to HTTPS. |
| context | object | Optional non-secret correlation labels returned unchanged only in the request lifecycle. |
| baseline | — | Optional baseline returned by a previous snapshot call. |
| compare_url | string | Optional public comparison URL. Used by change and monitoring services. |
Tags
x402
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