affaan-m/ECC · error · ValueError

bundle values must be finite JSON data

Error message

bundle values must be finite JSON data

What it means

_canonical serializes a bundle value to canonical JSON for hashing/digesting, using allow_nan=False. Any value that is not finite JSON data (sets, datetime, NaN/Infinity floats, cyclic structures) raises ValueError. This guarantees bundle digests are reproducible.

Solutions

1. Convert non-JSON types to JSON-compatible ones (sets->lists, datetime->ISO strings, numpy scalars->int/float)
2. Replace NaN/Infinity floats with None or explicit sentinel values before building the bundle
3. Catch this error and dump repr(value) of bundle parts to locate the offending field

Example fix

// before
bundle = {"snapshot": {..., "captured_at": datetime.now()}}
// after
bundle = {"snapshot": {..., "captured_at": datetime.now().isoformat()}}

def ensure_json_finite(value):
    json.dumps(value, allow_nan=False)  # raises before build if not serializable

try:
    bundle = build_application_bundle(data)
except ValueError as e:
    if "finite JSON" in str(e):
        print("bundle contains non-JSON or non-finite values; inspect repr(data)")
    else:
        raise

When it happens

Trigger: Passing non-JSON-serializable values into build_application_bundle or validate_application_bundle (e.g. a Python set, datetime, Decimal, float('nan'), float('inf'), or a self-referencing dict).

Common situations: Loading snapshots from a non-JSON source (yaml/DB) without converting types, hand-constructing bundle dicts with float('nan') for unknown fps, or leaving numpy scalar types in parsed data.

Understand the failure class

Background: "JSON serialization failed", "not JSON serializable", "Failed to serialize": why JSON marshaling errors happen and how to fix them — this error's family across 46 libraries.

Related errors

• application request must be a JSON object
• candidate configuration exceeds 1 MiB
• duplicate JSON field
• Failed to serialize
• gate.taskset_invalid

AI-assisted analysis of affaan-m/ECC@8321021c54 (2026-09-16). Data as JSON: /api/errors/fccc86205de353bf. Report an issue: GitHub.

Appendix: source

Thrown at skills/taste-application/scripts/tasteforge/integration.py:32

import os
import re
import stat
from fractions import Fraction
from pathlib import Path
from typing import Any
from urllib.parse import urlsplit


_REQUIRED = {"baseline", "source", "audio", "protected_intervals"}
_OPTIONAL = {"candidates", "inserts", "historical_receipts"}
_MAX_JSON = 8 * 1024 * 1024


def _canonical(value: Any) -> bytes:
    try:
        return json.dumps(value, sort_keys=True, separators=(",", ":"), allow_nan=False).encode()
    except (TypeError, ValueError, RecursionError) as exc:
        raise ValueError("bundle values must be finite JSON data") from exc


def _digest(value: Any) -> str:
    return hashlib.sha256(_canonical(value)).hexdigest()


def _object(value: Any, required: set[str], optional: set[str] | None = None) -> dict:
    if not isinstance(value, dict) or not required <= value.keys():
        raise ValueError("missing required bundle fields")
    if value.keys() - required - (optional or set()):
        raise ValueError("unknown bundle fields")
    return value


def _text(value: Any) -> str:
    if not isinstance(value, str) or not value.strip():
        raise ValueError("nonempty text required")
    return value

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