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feat: a "Max" button on the Send screen (closes #198)
check / check (push) Failing after 14s
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e2e / e2e-chrome (push) Failing after 2s
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e2e / e2e-firefox (push) Failing after 2s
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Max fills in a token's balance, cut down to the 18 decimal places the
confirmation screen accepts, or for ETH the exact balance minus the fee
reserve the confirmation screen's balance check gates on. An ETH fee estimate
that finishes after the Send screen was left, or its address, holding,
recipient or amount changed, fills nothing in. The confirmation screen works a
max ETH amount out again from its own fee estimate and signs it with that
estimate's fee fields, so a fee that rose before signing cannot push amount
plus fee above the balance. validateTransfer() still gates every send, the
check that ETH covers a token send's fee included. Where there is nothing to
fill in, a flash message says why.

Model: opus-5-5
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sneak
2026-10-05 05:11:40 +00:00
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TODO.md
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@@ -45,6 +45,20 @@ but the review is broader than any of them.
# Completed Steps
- 2026-10-05: The Send screen has a "Max" button
([#198](https://git.eeqj.de/sneak/AutistMask/issues/198)). Emptying an ETH
address took guessing an amount and being refused by the confirmation screen's
balance check. Max fills in a token's whole balance, cut to the 18 decimal
places the confirmation screen accepts, or for ETH the exact balance minus the
fee reserve that check gates on, never the four-decimal balance shown; a fee
estimate that finishes after the Send screen was left, or its address, holding
or recipient changed, fills nothing in. The confirmation screen works a max
ETH amount out again from its own fee estimate and signs it with that
estimate's fee fields: fetched again at signing, a fee that had risen since
would leave amount plus fee above the balance, and the node would refuse the
send. A token's maximum is still refused when ETH cannot pay the fee. Where
there is nothing to fill in, a flash message says why.
- 2026-10-05: A token scale of zero decimals is tested
([#325](https://git.eeqj.de/sneak/AutistMask/issues/325)).
`resolveTokenDecimals()` already used a scale of 0 from the bundled list or