fix(forge): disable synthetic Tempo fees - #16218
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Synthetic script and test transactions validate with a zero gas price before the cheatcode inspector restores the configured value. Mark these environments as fee-free so Tempo does not attempt to collect or refund real TIP20 fees during local execution.
mattsse
requested review from
0xrusowsky,
DaniPopes,
figtracer,
grandizzy,
mablr and
stevencartavia
as code owners
August 17, 2026 11:02
Contributor
✅ Changelog foundThe deterministic check will validate the changed entry. |
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Forge validates synthetic script and test transactions with a zero gas price so network balances cannot block local execution, then the cheatcode inspector restores the configured gas price. Tempo observes that restored price during post-transaction fee handling and attempts to refund a fee that was never collected, causing a TIP20 insufficient-balance error during script setup.
This marks synthetic test environments with
disable_fee_chargewhile preserving the restoredtx.gaspricesemantics visible to Solidity. It also adds an executor invariant and a forked Tempo script regression using a non-zero gas price and maximum block gas limit, with local fee liquidity cleared so the original failure is reproduced.This PR was written with Codex, including investigation, implementation, regression tests, and PR text.