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tools: add env preflight checker #256

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tools: add env preflight checker #256

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31 changes: 31 additions & 0 deletions scripts/check_env.py
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Original file line number Diff line number Diff line change
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import os
import sys

@cursor cursor Bot Jan 30, 2026

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Unused sys import

Low Severity

The sys module is imported but never used. The script uses raise SystemExit(main()) which doesn't require sys. This import can be removed.

Fix in Cursor Fix in Web

from pathlib import Path

REQUIRED = ["HOST", "CHAIN_ID", "PRIVATE_KEY", "FUNDER"]

@cursor cursor Bot Jan 30, 2026

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Checker validates wrong environment variable names

High Severity

The REQUIRED list checks for HOST, CHAIN_ID, PRIVATE_KEY, FUNDER, but the actual example files in this codebase use different env var names: CLOB_API_URL, PK, CLOB_API_KEY, CLOB_SECRET, CLOB_PASS_PHRASE. No code in the repository actually reads the variables being checked, so this preflight checker won't catch the missing variables that cause auth errors.

Fix in Cursor Fix in Web


def load_dotenv(path: Path) -> None:
for line in path.read_text(encoding="utf-8").splitlines():
s = line.strip()
if not s or s.startswith("#") or "=" not in s:
continue
k, v = s.split("=", 1)
os.environ.setdefault(k.strip(), v.strip())

def main() -> int:
dotenv = Path(".env")
if dotenv.exists():
load_dotenv(dotenv)

missing = [k for k in REQUIRED if not os.environ.get(k)]
if missing:
print("Missing required env vars:")
for k in missing:
print(f"- {k}")
return 1

print("Env looks good.")
return 0

if __name__ == "__main__":
raise SystemExit(main())