Owner decision 2026-08-28: single global GE tax formula for all entries:
min(floor(0.02 * sell_price), 5_000_000). Apply the per-item cap inside
ge_floor_tax_error(); the margin-tag scope (flipping/merchanting) and the
generic-ge non-margin exemption are unchanged.
Regression fixtures now cover:
- fractional-tax flipping entry must FAIL (kept)
- non-margin entry with only ge + processing must PASS (kept)
- correctly-floored flipping entry must PASS (kept)
- high-value flip above the 5,000,000 GP cap (sell 300,000,000 / buy
294,000,000 / net 1,000,000) must PASS — the old uncapped rule computed
6,000,000 tax, demanded net 0, and rejected this valid entry (new)
Closes the governor's attempt-3 blocker on PR !7.
Governor-review bounce (PR #7, attempt 2) fix on issue-1:
- The floor-tax rule previously triggered on any entry carrying the
generic 'ge' tag (tags & {flipping, merchanting, ge}). A training,
processing, or procurement entry may legitimately carry 'ge' while
its income/cost model is unrelated to flip tax, so it could fail the
global gate unless its economics accidentally satisfied the flip
equation.
- Rule now gates ONLY the unambiguous margin tags (flipping and/or
merchanting); the bare 'ge' tag no longer triggers it.
- Rule extracted into ge_floor_tax_error() and a --selftest mode added
with three regression fixtures, run on every gate invocation:
* fractional-tax flipping entry -> must FAIL
* non-margin entry with only 'ge' + 'processing' (economics
deliberately violate the flip equation) -> must PASS
* correctly-floored flipping entry -> must PASS
- Demo (old scope): ge+processing fixture with net 2000 vs floored 1900
errored under the old tag set; low-alch-f2p's -112 vs -115 model
would also false-positive if it carried 'ge'.
Tests: python3 tools/validate.py -> 2 entries, 0 errors, 1 pre-existing
warning (researched flag on low-alch-f2p); --selftest -> 3 PASS, 0 errors;
git diff --check clean.
Governor-review bounce (PR #7) fixes on issue-1:
1. GE 2% convenience fee rounds DOWN per item: net = sell - floor(0.02*sell) - buy.
Anchor net 16.12 -> 17 (244-4-223); top-8 members table recomputed with
floored tax -> 598,000/4h = 149,500 gp/h (was 138,000); gp_per_hour_low/high
updated. Validator now rejects fractional-tax arithmetic for GE-margin entries.
2. State machine split wait_fill into wait_buy_fill / wait_sell_fill so the full
buy -> buy-fill -> sell -> sell-fill -> collect path is explicit; sell cycle
can no longer loop back into sell without collecting.
3. Economy qualified as the members path (8 slots); F2P path added (3 slots,
F2P-tradeable rows only): Iron bar + Cosmic rune + Silver ore = 227,000/4h
= 56,750 gp/h. Members/F2P flags cross-checked against wiki item pages.
