input_too_large

# state.json holds the decision state; contract.json holds instructions + questions.
STATE_BYTES=$(jq -c . state.json | tr -d '\n' | wc -c)
CONTRACT_BYTES=$(jq -c . contract.json | tr -d '\n' | wc -c)
EST=$(( (STATE_BYTES + 3) / 4 + (CONTRACT_BYTES + 3) / 4 ))
echo "estimated input: $EST tokens (decision limit 262144)"

const DECISION_CONTEXT_TOKENS = 262_144;

const bytes = (v: unknown) =>
  new TextEncoder().encode(typeof v === "string" ? v : JSON.stringify(v)).length;

const state = { ticket: "I was charged twice this month and nobody answers my emails.", plan: "pro" };
const contract = {
  instructions: "You triage customer support tickets.",
  questions: { urgent: { type: "noul", instructions: "reply within the hour?" } },
};

const estimate = Math.ceil(bytes(state) / 4) + Math.ceil(bytes(contract) / 4);
if (estimate > DECISION_CONTEXT_TOKENS) {
  throw new Error(`estimated ${estimate} tokens; trim the state before sending`);
}
// Approximate: the server measures the canonical JSON of the contract.
console.log(`estimated input: ${estimate} tokens`);

import json
import math

DECISION_CONTEXT_TOKENS = 262_144


def byte_len(value) -> int:
    text = value if isinstance(value, str) else json.dumps(value, separators=(",", ":"))
    return len(text.encode("utf-8"))


state = {"ticket": "I was charged twice this month and nobody answers my emails.", "plan": "pro"}
contract = {
    "instructions": "You triage customer support tickets.",
    "questions": {"urgent": {"type": "noul", "instructions": "reply within the hour?"}},
}

estimate = math.ceil(byte_len(state) / 4) + math.ceil(byte_len(contract) / 4)
if estimate > DECISION_CONTEXT_TOKENS:
    raise ValueError(f"estimated {estimate} tokens; trim the state before sending")
# Approximate: the server measures the canonical JSON of the contract.
print(f"estimated input: {estimate} tokens")