TARIFF-11: the plan's account of itself, corrected and put on the page

Four defects of one shape - the add-on's report of its own tariff plan was
wrong, always in the direction that flattered it - and one check, which is
the deliverable.

1. `TariffPlan.words` counted POINTS and called them HOURS. The live add-on
   logged `dynamic_dayahead from generic_dayahead, 132 h` for 132
   quarter-hourly points = 33 hours. Belgium moved to a 15-minute MTU on
   2025-10-01, so this was wrong every time it was printed, and NOT by a
   constant factor: a 40-hour soak measured 1.79x .. 5.33x, because §8.3's
   carried points are hourly while the firm ones are quarter-hourly.
   `words` now reports both quantities, plus the firm/carried split and the
   spacing, in FCST-04's *Price history* wording so the two rows can be
   compared.

2. §8.3's firm-pair refusal and the flat-tariff refusal did the same, and
   they reach an operator through `self.arb.explain()`. This is exactly the
   point<->hour conflation TARIFF-14 removed from `at()`, left standing in
   the prose. `price_forecast.py`'s §8.3 carry-forward log line carried the
   third instance - a carried-HOUR count over a POINT count - and DOCS
   quotes it verbatim, so it is corrected here too.

3. The plan reached no HTTP surface at all. `rows["Tariff"]` was
   `static_status()`'s 30 s-tick sentence and never saw the provider plan -
   it read 'no static profile' at all 802 soak samples on a site whose feed
   was answering. It now carries the plan's shape. ⚠️ The two sources are
   kept distinguishable: the plan half is stamped with its own age, measured
   from `tariff_at`, because it can be up to TARIFF_MAX_AGE_S (5400 s) old.
   FCST-04 pins that row to DOCS as a pair; DOCS moves in this commit.

4. `main.py`'s "if and only if" was false. `cycle()` returns at the input
   hold before `self.arb = None`, so an armed site read
   `off (arbitrage_enabled)` - naming an option that is on - and, after one
   completed cycle, showed a decision up to 15 s stale as a current one. The
   row now reads the OPTION and separates three facts; `cycle_at` and
   `arb_at` make "this cycle reached no decision" an observation.

THE DELIVERABLE IS THE CHECK. All four survived 29 green suites because
nothing graded the strings a human is shown. `test_price.py` section 12
renders through the shipped `status_payload()`, parses each number out of
its OWN SLOT and compares it against a figure computed from the fixture's
construction parameters - not from the property the row was built out of
(habit 4), and not as a substring of a sentence the same file wrote (habit
14). The fixture set is four plan shapes and the check computes and prints
the field pairs no fixture separates. The *Arbitrage* row's states are
driven through real cycles with a sensor answering None and graded by
INEQUALITY.

No behaviour changed: no threshold, refusal rung, claim or setpoint moved.

MUTATIONS: 16, no survivors, one at +0 B (the risky delta) and red. Two were
found by the battery INSIDE THIS CARD'S OWN CHECK: a -190 B survivor whose
fixture varied two things at once (habit 4), and a mutation whose red was a
TRACEBACK in an f-string operand and therefore named nothing (FCST-06). Both
closed; the table is on the PR.

All 29 test files green.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BwRLw7eKYj2byVdwB6kbjU
This commit is contained in:
2026-09-13 13:51:05 +02:00
co-authored by Claude Opus 5
parent 068b83f57c
commit 610725bed9
6 changed files with 1170 additions and 28 deletions
+160 -10
View File
@@ -218,6 +218,106 @@ def pack_energy_of(inv):
inv.capacity_kwh, inv.max_w)
def tariff_plan_row(plan, tick_words: str, *, age_s, horizon_h: float,
provider: bool, max_age_s: float) -> str:
"""The *Tariff* status row: the 30 s tick's sentence AND the provider plan.
THE DEFECT THIS PREVENTS (TARIFF-11). `origin`, `product`, the horizon,
the firm/carried split and the spacing appeared in NO status row. The row
was `static_status()`'s sentence alone, computed on the 30 s I/O-free tick
from its own static plan, and it NEVER SAW the provider plan - it read
`'no static profile'` at all 802 samples of a 40-hour soak on a site whose
feed was answering. The only external evidence a plan existed at all was
one `_LOG.info` line, and that line carried the point<->hour mislabel
`TariffPlan.words` is fixed for.
⚠️ TWO SOURCES, TWO CLOCKS, AND THE ROW SAYS SO IN WORDS. These sentences
are NOT computed at the same moment and presenting them as though they
were would be a new version of the defect being fixed:
`tick_words` static_status() / the Home Assistant price entities,
regenerated on THIS tick, every 30 s, I/O-free;
`plan` the background refresh's resolution, up to
TARIFF_REFRESH_S old before it is retried and up to
TARIFF_MAX_AGE_S (5400 s since TARIFF-12) old before
`fresh_tariff_plan()` retires it.
So the plan half is stamped with its OWN age in seconds, measured from
`tariff_at` - the moment of the fetch that produced it, which TARIFF-12
deliberately does not move on a kept plan.
⚠️ AND `age_s` IS THE CALLER'S MEASUREMENT, NOT THIS FUNCTION'S. A clock
read in here would be a second clock disagreeing with the one that decided
the plan was fresh enough to pass at all.
⚠️ "NO PLAN" IS SAID OUT LOUD ON A SITE THAT CONFIGURED A PROVIDER. A
dynamic site whose refresh has never completed, or whose plan has aged
past `max_age_s`, is the exact state the soak measured; rendering it as
the bare static sentence is how it stayed invisible for 802 samples.
"""
if plan is None:
if not provider:
return tick_words
return (f"{tick_words} (recomputed this tick); NO provider plan - "
f"none has been resolved yet, or the last one is older than "
f"{max_age_s:.0f} s")
return (f"{tick_words} (recomputed this tick); provider plan fetched "
f"{age_s:.0f} s ago for a {horizon_h:.0f} h horizon: {plan.words}")
def arbitrage_row(*, on: bool, decision, decided_at, cycle_at, now,
why: str) -> str:
"""The *Arbitrage* status row: THREE states, which used to render as two.
THE DEFECT THIS PREVENTS (TARIFF-11). The row was
`"off (arbitrage_enabled)" if self.arb is None else self.arb.explain()`,
under a comment asserting that `self.arb is None` if and only if
`arbitrage.enabled(self.o)` was False. IT IS NOT: `cycle()` returns at the
input hold - inputs missing, `bad_for < stale_input_s`, default 15 s -
BEFORE it reaches `self.arb = None`. Driven: `arbitrage_enabled: true`
plus a sensor answering `None` gives `arbitrage.enabled(opts) = True`,
`self.arb = None` (its `__init__` value, untouched) and a row reading
`off (arbitrage_enabled)` - NAMING AN OPTION THAT IS ON. Past the first
completed cycle the same early return leaves the PREVIOUS decision
standing instead, which the row then rendered as a current one.
THE THREE FACTS, and they are three because they have three remedies:
trading is off the operator has not armed it. Nothing is
wrong and nothing will happen.
no decision this cycle it is armed, and the cycle did not get as far
as the arbitrage step. `why` is the control
loop's own reason - usually "inputs missing".
a decision the strategy's own sentence, with the age of
the cycle that produced it.
⚠️ `on` IS READ FROM THE OPTIONS, NOT INFERRED FROM `decision is None`.
Inferring it is the whole defect: the option is the only thing that
answers "is trading armed", and it is available on every render.
⚠️ THE AGE IS ALWAYS PRINTED, INCLUDING WHEN IT IS ZERO. A row that
reports staleness only once it is stale cannot be told, on any single
render, from one that never reports it - and the bound TARIFF-10's
comment claimed did not exist is ~15 s of it.
"""
if not on:
return "off - `arbitrage_enabled` is false, so nothing trades"
if decided_at is None:
return (f"ON (`arbitrage_enabled`), but NO DECISION has been reached "
f"yet - no cycle has run as far as the arbitrage step. The "
f"loop's own reason: {why or 'none recorded'}")
age = (now - decided_at).total_seconds()
stale = cycle_at is not None and decided_at < cycle_at
head = (f"no decision this cycle ({why or 'no reason recorded'}); the "
f"last one was taken {age:.0f} s ago: " if stale else
f"decided {age:.0f} s ago: ")
if decision is None:
return (f"ON (`arbitrage_enabled`), no decision this cycle "
f"({why or 'no reason recorded'}), and none stands from an "
f"earlier one")
return head + decision.explain()
class Controller:
def __init__(self, opts: dict, hass: HomeAssistant, store, mqtt_pub, *, stop,
peak_db_path: str = "/data/tariff.db",
@@ -796,6 +896,19 @@ class Controller:
self.tariff_plan = None
self.tariff_at = None
self.arb = None
# TARIFF-11. WHEN the standing arbitrage decision was taken, or None if
# this controller has never reached the arbitrage step. ⚠️ `self.arb is
# None` DOES NOT MEAN "TRADING IS OFF" AND NEVER DID - see
# `arbitrage_row()`. It also means "cycle() returned before the step
# ran", and at that point `self.arb` is either this attribute's initial
# None (startup) or the PREVIOUS cycle's decision (an input hold), and
# the status row rendered all three identically.
self.arb_at = None
# TARIFF-11. When the most recent cycle() STARTED. `arb_at < cycle_at`
# is the exact, derived statement of "the latest cycle did not get as
# far as the arbitrage step", which is the fact the *Arbitrage* row
# used to render identically to "trading is switched off".
self.cycle_at = None
self._arb_action = None
self.inputs_bad_since = None
# SAFETY-03. What the loop's OWN bounds did last cycle - a
@@ -1565,6 +1678,24 @@ class Controller:
self.cheap, self.tariff_words = static_status(
o, datetime.now(timezone.utc))
# ⚠️ TARIFF-11. THE PROVIDER PLAN REACHES THE *Tariff* ROW HERE, AND
# THIS IS THE ONLY PLACE THE TWO SOURCES MEET. Everything above is the
# 30 s I/O-free tick; `fresh_tariff_plan()` is an attribute read and an
# age comparison against TARIFF_MAX_AGE_S - still no fetch on this path,
# which is the rule the whole branch above exists to keep. What the row
# gains is the plan's SHAPE (origin, product, horizon, the firm/carried
# split, the spacing) and what it must never gain is the suggestion
# that the two halves were computed at the same instant, so the plan
# half carries its own age in seconds. See `tariff_plan_row()`.
_tick = datetime.now(timezone.utc)
_standing = self.fresh_tariff_plan(_tick)
self.tariff_words = tariff_plan_row(
_standing, self.tariff_words,
age_s=(None if _standing is None
else (_tick - self.tariff_at).total_seconds()),
horizon_h=float(price_option(o, "price_horizon_h")),
provider=provider_configured(o), max_age_s=TARIFF_MAX_AGE_S)
if self.inputs_ok:
if self.inputs_bad_since is not None:
self.log_event("inputs recovered")
@@ -1918,6 +2049,11 @@ class Controller:
method's only job is to state honestly what each strategy wants.
"""
now = datetime.now(timezone.utc)
# ⚠️ BEFORE THE FIRST `return` OF THIS METHOD, ON PURPOSE (TARIFF-11).
# It stamps that a cycle RAN, which is a different fact from any of the
# decisions the cycle may or may not reach, and the status row needs
# the two separately.
self.cycle_at = now
# ⚠️ EACH PACK ON ITS OWN READING, NOT "the SoC". §12's recalibration
# drains and refills ONE pack and grades ONE coulomb counter, so each
@@ -2577,7 +2713,13 @@ class Controller:
# `frozenset()` would be main.py asserting a forecast is healthy when
# there is not one, which is exactly what static_tariff's `uncertainty`
# argument has no default in order to prevent.
self.arb = None
# ⚠️ TARIFF-11: BOTH ATTRIBUTES, AND `arb_at` IS WHAT MAKES THE ROW
# HONEST. Reaching this line is the only proof that this cycle got as
# far as the arbitrage step; the early return at the input hold above
# leaves BOTH standing at whatever the last completed cycle left, and
# `arb_at` is then the age the status row reports rather than a
# decision presented as current.
self.arb, self.arb_at = None, now
if arbitrage.enabled(self.o):
floor_pct, ceiling_pct = arbitrage.soc_bounds(self.o)
charge_w, discharge_w = self.trade_power_w(floor_pct, ceiling_pct)
@@ -4481,15 +4623,23 @@ class Controller:
# every refusal it can make already carries a reason a human can
# act on, and "Arbitrage: no" would throw all of them away.
#
# ⚠️ TARIFF-10 RE-READ THIS STRING AND LEFT IT ALONE, which is worth
# saying because that card is about the two switches being
# different. `self.arb` is None if and only if
# `arbitrage.enabled(self.o)` was False, so `off (arbitrage_enabled)`
# still names the option that is actually off - and on a site with a
# provider configured it is now the row that says the prices
# arriving on the *Price history* row above are moving nothing.
("Arbitrage", "off (arbitrage_enabled)" if self.arb is None
else self.arb.explain()),
# ⚠️ TARIFF-10 RE-READ THIS STRING AND LEFT IT ALONE UNDER A
# COMMENT THAT WAS FALSE, AND TARIFF-11 IS THAT CORRECTION. The
# claim was that `self.arb is None` **if and only if**
# `arbitrage.enabled(self.o)` was False. Only the forward direction
# holds: `cycle()` returns at the input hold (`bad_for <
# stale_input_s`, default 15 s) BEFORE it reaches `self.arb = None`
# at all, so on an armed site `self.arb` is `__init__`'s None at
# startup and the PREVIOUS cycle's decision during a later hold -
# and the row rendered `off (arbitrage_enabled)` on a site whose
# `arbitrage_enabled` is `true`. `arbitrage_row()` reads the option
# instead of inferring it, and separates "trading is off" from "no
# decision was reached this cycle"; `cycle_at` and `arb_at` are what
# make the second one an observation rather than a guess.
("Arbitrage", arbitrage_row(
on=arbitrage.enabled(self.o), decision=self.arb,
decided_at=self.arb_at, cycle_at=self.cycle_at,
now=datetime.now(timezone.utc), why=self.reason)),
]
return {
"banner": banner, "level": level, "rows": rows, "checks": checks,