# JVM Class Loader Defining/Initiating Constraint Ledger

> JVM Class Loader Defining/Initiating Constraint Ledger is a paid API for AI agents from detect.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-11-04).

Validates and records accepted/rejected outcomes, final class-loader bindings, and surviving constraints for a bounded JVM class-loading sequence.

## Facts

- Endpoint: POST https://detect.halowerk.com/v1/F-A-NIGHT-OS-JVM-LOADER/jvm-class-loader-defining-initiating-constraint-ledger?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-04
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/jvm-class-loader-defining-initiating-constraint-ledger-a0e52c64
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SOkud_5xuSrLo9YSoLM9F

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 jvm-class-loader-defining-initiating-constraint-ledger-a0e52c64 -d '<json body>'
```

Example prompt: Run the JVM class-loader constraint ledger check for my offline fixture: I have 4 loaders and 3 class names, with 8 definition pairs and 12 loading events, and my claimed outcomes array alternates accepted and rejected — give me back the final initiating-loader bindings and surviving constraints.

## When to prefer this

Use this endpoint when you need to formally validate or record the constraint ledger for a bounded JVM class-loading sequence in an offline or test-fixture context, specifically when you need both the accepted/rejected transcript and the surviving loader constraints. Prefer this over manual analysis when the loader model has up to 8 loaders and 6 class names with complex event sequences.

## Known failure modes

- Invalid loader count (must be 2–8): request rejected with validation error
- Class name count out of range (must be 1–6): schema validation failure
- Events array empty or exceeding 32 entries: rejected
- Definition pairs below minimum of 2: schema error
- Outcomes array length mismatch with events: constraint inconsistency error
- Malformed 3-tuple in final_bindings or final_constraints: schema rejection
- Payment not provided or insufficient USDC: 402 Payment Required

## How this service works

An offline JVM fixture author needs the accepted/rejected transcript, final initiating-loader class identities and surviving constraints for an explicit bounded loading sequence.

## Output

Returns the accepted/rejected transcript for each loading event, the final initiating-loader and defining-loader class identity bindings (as 3-tuples), and the set of surviving loader constraints (as 3-tuples) after the bounded loading sequence completes.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "artifact": {
   "type": "object",
   "required": [
    "loader_model"
   ],
   "properties": {
    "loader_model": {
     "type": "object",
     "required": [
      "loaders",
      "names",
      "definitions",
      "events",
      "claim"
     ],
     "properties": {
      "claim": {
       "type": "object",
       "required": [
        "outcomes",
        "final_bindings",
        "final_constraints"
       ],
       "properties": {
        "outcomes": {
         "type": "array",
         "items": {
          "enum": [
           "accepted",
           "rejected"
          ]
         },
         "maxItems": 32,
         "minItems": 0
        },
        "final_bindings": {
         "type": "array",
         "items": {
          "type": "array",
          "items": {},
          "maxItems": 3,
          "minItems": 3
         },
         "maxItems": 48,
         "minItems": 0
        },
        "final_constraints": {
         "type": "array",
         "items": {
          "type": "array",
          "items": {},
          "maxItems": 3,
          "minItems": 3
         },
         "maxItems": 32,
         "minItems": 0
        }
       },
       "additionalProperties": false
      },
      "names": {
       "type": "integer",
       "maximum": 6,
       "minimum": 1
      },
      "events": {
       "type": "array",
       "items": {
        "type": "array",
        "items": {},
        "maxItems": 4,
        "minItems": 4
       },
       "maxItems": 32,
       "minItems": 1
      },
      "loaders": {
       "type": "integer",
       "maximum": 8,
       "minimum": 2
      },
      "definitions": {
       "type": "array",
       "items": {
        "type": "array",
        "items": {},
        "maxItems": 2,
        "minItems": 2
       },
       "maxItems": 36,
       "minItems": 2
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/jvm-class-loader-defining-initiating-constraint-ledger-a0e52c64/health.json
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