2 Commits

Include renames

Author	SHA1	Message	Date
glenn schrooyenandClaude Opus 5	2b8b8cb97f	SAFETY-26: pin the negative-price refusal from below, not only from above ... OPT-04's reviewer weakened `if price < 0` to `if price < -0.001` and every suite stayed green while a -0.0005 EUR/kWh sell hour discharged. The shipped code was right the whole time; the CHECK could not tell correct from nearly-correct. The only probe near the boundary sat at 0.0000, which catches a `<=` and says nothing about a tolerance invented on the other side - and a tolerance on the other side is §17's named regression walking through with the suite passing. A dearest hour at -0.0005 is an ordinary Belgian day-ahead print, not a fuzz value. `app/` IS NOT TOUCHED. `if price < 0` is already correct and changing it would be the defect; this card closes the check, not the behaviour. The 0.0000 probe stays and is now labelled as the half that pins the boundary from above. The new probe is a SWEEP rather than a point, because one probe at -0.0005 closes `-0.001` and nothing else - a mutation reaching for `-0.01` would be the identical defect one decimal further out. Five prices span four orders of magnitude down to -0.000001, the last place the canonical six-decimal format can express; each is asserted to survive that rounding as strictly negative, to still be the DEAREST hour, and to still clear the widened threshold, so §17 is the only rung that can refuse. The same five magnitudes with the sign flipped all discharge, so this is a boundary at exactly zero rather than a refusal of small numbers. AC4, the look: every price/quantity boundary in arbitrage.py and static_tariff.py was given the same tolerance mutation, both directions where both exist. Two survive, both in static_tariff.py and both NAMED RATHER THAN FIXED - they are TARIFF-03's rungs and want probes in its own file. `spread == 0.0` loosened to `<= 0.001` flips a real 0.0005 spread from allowed to refused at min_spread_eur_kwh=0.0, a documented supported value, and otherwise prints a false reason about a tariff that is not flat. `len(firm) < 2` loosened to `< 1` survives at +0 bytes - TEST-15's risky delta - and is masked only by the flat rung, so the two mask each other and a later edit to either opens a hole nothing reports. Mutation verified under `python -B` with a recursive __pycache__ purge, byte delta printed (+5 B), the mutated line asserted changed, and - per the reviewer's addition to TEST-15 - the tree re-read from disk and asserted to be the tree that was mutated before each run. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015VXjA3LWccN1rJsk3okyPC	2026-08-31 02:07:56 +02:00
glenn schrooyenandClaude Opus 5	bdd7f18a54	OPT-04: charge cheap, discharge expensive - and only when it pays ... Four cards built the price stack and nothing traded on it. app/arbitrage.py is §10.1's priority 3, and it consumes all four rather than re-deciding anything: whether a trade is permitted at all, on which two hours, against which widened threshold is TariffPlan.arbitrage()'s answer, and that answer cannot be obtained without first saying whether the peak guard is holding. §9.1's "peak shaving outranks arbitrage" is therefore honoured structurally - there is no path to a spread that skips the question - and again in the arbiter, where P_PEAK (50) clamps a claim filed at P_ARBITRAGE (30). A guard that never ran is not a guard that is clear. On meter_source off the peak guard is never evaluated; that third state is carried as None and refuses, because charging at the rail creates the billed quantity while nothing measures the quarter. validate.py refuses that configuration too, along with arbitrage armed with no price source and a SoC floor at or above the ceiling. §17: never export into a negative price. The guard is on the hour being sold into, not on the spread - a day priced -0.30 .. -0.05 clears any threshold and its dearest hour is still negative. Buying in a negative hour stays allowed. resolve_tariff() may open an HTTPS connection and the tick feeds the ESP32 heartbeat, so the fetch runs in its own task at a 30 min cadence and the tick reads an attribute and an age bound. test_arbitrage.py section 8 asserts that structurally on the shipped AST: a fetch put back on cycle() is red. AC4 is NOT met and is not restated - this repository holds no price history. Section 7 replays a synthetic year and asserts the property that does not need real prices: every executed round trip cleared its own widened requirement, and zero discharges landed in the 522 negative-priced hours. At the shipped 0.10 EUR/kWh threshold a realistic Belgian day/night site does not trade at all. Reported, not tuned: that number and FCST-03's widening factors are one product decision and it is the owner's. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015VXjA3LWccN1rJsk3okyPC	2026-08-31 01:36:09 +02:00