Commit Graph
25 Commits
Author SHA1 Message Date
glenn schrooyenandClaude Opus 5.5 1f97c7652f SAFETY-52: a battery that refuses is asked for 0 W, with a 200 W probe every 15 min
infra-pin / fresh (pull_request) Successful in 1s
checks / unit (pull_request) Failing after 9m32s
At the BMS cut-out the saturation freeze held the last request for hours
(+5000 W for 11.87 h on 09-06, +1940 W for 3 h 55 m on 09-19) until the grid
error changed sign. compute() now carries a refused direction: after
SETTLE_CYCLES of a ~0 W reading against a larger ask it holds that direction
at 0 W, probes 200 W (below the gate's 250 W) every 15 minutes, and lets go
on charge, an answered probe, stop/start or another writer. A stale-reading
trip on a frozen ~0 W reading seeds the same hold, which ends SAFETY-59's
~70 s cycle. One inverter only; no SoC in the loop (SAFETY-25 Option A).

test_refusal.py drives the real Controller and gate; tools/replay_refusal.py
replays the 16-day capture. test_clamp.py and test_delivery.py re-baselined
where they asserted the old hold. DECISIONS/SAFETY-52 has the record and what
SAFETY-58/59 must take into account.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-27 16:43:27 +02:00
glenn schrooyenandClaude Opus 5.5 29837dfaa7 UX-11: safety log lines give one plain sentence and the code, the figures go to DEBUG
checks / unit (pull_request) Successful in 9m3s
infra-pin / fresh (pull_request) Successful in 2s
- Every WARNING/ERROR line that reported a safety reason (direction, delivery,
  stuck meter, stale reading, peak guard, circulation, over-rating) now ends in
  the reason's code (messages.reason_code()). The reason itself, figures and
  limits included, is on a DEBUG line right after it and in the action log.
- The reasons and state.json are unchanged, so an old state file loads and
  shows the same way: every saved reason opens with its code.
- test_messages part 6 checks every WARNING+ line at 25 words as logged; nine
  non-safety families are listed with a reason and capped. The byte pin in
  test_watchdog now pins the meaning, in order.
- The meter logs one WARNING per quiet episode, and INFO when back, so the red
  row's "the add-on log shows why" holds. The Why line past the hold names
  the missing reading. Action log: "25 engagements", "Shadow mode off: ...".

No trigger, latch, threshold, log level, notification id, cadence, row colour
or banner order changed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LyR88rXETvwhTgx6yHE39p
2026-09-27 13:34:30 +02:00
adminandClaude Opus 5.5 e0b578756f UX-10 review: the line as logged gets the red-alarm shape, clamp lines at 30 words, plain HA 400
checks / unit (pull_request) Successful in 9m3s
infra-pin / fresh (pull_request) Successful in 2s
Part 6 checked the quoted reason alone, so title + reason + tails logged
as 4+ sentences. It now also checks the whole line (at most 3 sentences,
none over 30 words); 25 lines failed and are rewritten (one-sentence
wrappers, two-sentence circulation and peak reasons, STALE_READING's
fixed limits on a DEBUG line). The clamp lines for one inverter are
pinned at 30 words with OUTPUT_CLAMP and the numbers kept. Home
Assistant's bare '400: Bad Request' while it loads becomes one plain
line; still WARNING, throttled, a failed write.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-27 12:08:38 +02:00
glenn schrooyenandClaude Opus 5.5 23a3a3f5b5 UX-10: the last plain-language leftovers: log lines, two table rows, 'Why: Other', red at 0 s
checks / unit (pull_request) Successful in 9m3s
infra-pin / fresh (pull_request) Successful in 2s
- test_messages.py part 6: every dynamic part of a WARNING+ line is classified
  as data or as a built text, and every built text is produced by the real
  code and checked. This is the gap the 2d scan had: it counted `%s` as one
  word, so reasons built by loop_clamp_note() and friends were never seen.
- Quoted reasons rewritten to STYLE.md (red-alarm shape, codes kept):
  OUTPUT_CLAMP, METER_FROZEN, CIRCULATING_POWER, STALE_READING, the peak
  guard (codes now PEAK_GUARD*), the migration report, price feed, price
  history and gate reasons. Plurals via messages.times()/count().
- Top table: Price history "96 prices over 24 hours for 26 Sep", Tariff
  "one every 15 minutes or every hour", "not final yet" dropped.
- Levels and noise: per-cycle shadow line DEBUG, shadow on/off INFO,
  aiohttp access log only at log level debug, settings warnings once per
  start, one plain line per Home Assistant outage (hass.Outage).
- INFO jargon and error texts: no "§8.3", ISO times, "banked", "keys ARE",
  "NOT_OBSERVED", "did NOT land", "AND".
- Display bugs: WHY_WINNER covers every winner and safety reason
  (main.why_key(), part 7 finds them in the code); the meter row is amber
  "waiting for the first reading" inside its limit after a start; the
  missing-reading age is counted when the page asks.
- STYLE.md and DECISIONS/UX-08-short-notifications.md (UX-10 section).

No change to safety behaviour, alarm levels, notification ids, triggers,
cadence or the banner cascade. One row colour changes (meter at start),
justified in DECISIONS.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-27 10:58:43 +02:00
adminandClaude Opus 5.5 6a95447248 UX-08 2d: plain log lines, the rest of the status page, and DOCS
infra-pin / fresh (pull_request) Successful in 1s
checks / unit (pull_request) Successful in 8m55s
Every WARNING and ERROR line is one plain line of at most 25 words, with
no card ids, capitals or semicolons; the reasoning of the ten longest is
on a DEBUG line. The ux08 allowlist is empty and its cap is 0 (43 -> 0).

The status page: the month-peak and peak-guard rows, the stale-reading
row, the top table (Why, Tariff, Arbitrage, Shadow mode, labels), the
Stopped banner and the line under the buttons, which now shows the plain
hint of each event instead of the raw action log. The Supervisor question
at start logs one line with a real reason.

Refusals are counted as shown (labels expanded, long cases driven), seven
were shortened, the card and parse errors lost their internals, a blank
value reads "empty", and the panel no longer files inverters.max_w under
the flat max_w. Option names lose "(JSON)", the NL texts are checked too.

DOCS gets a glossary (control board, isolator, Developer Tools) and card
ids move from headings to a "For installers" line.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LyR88rXETvwhTgx6yHE39p
2026-09-27 08:01:16 +02:00
adminandClaude Opus 5.5 00e3ee9de8 UX-09: Details link for current HA, "would" in shadow mode, plain terms
infra-pin / fresh (pull_request) Successful in 2s
checks / unit (pull_request) Successful in 8m50s
- Details link: /config/app/<slug>/documentation on HA 2026.2+ (the old
  /hassio/addon path is a 404 from 2026.5), /hassio/addon on 2026.1 and
  older. Slug from GET /addons/self/info, version from GET /info, hostname
  as fallback.
- Shadow mode: the over-rating alarm and row say what would have been sent,
  the peak alarm no longer says the battery is giving all it can.
- "controller" -> "the add-on" / "control". Settings named by their labels;
  four labels changed to match (Peak reserve, Battery level entity, Solar
  production ..., Reversed-sign solar entities).
- Shadow banner and inverter link notes moved to messages.py and checked.
- DOCS Notifications and Status page rewritten for home owners, with a
  "For installers" part each. Allowlist 168 -> 167.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LyR88rXETvwhTgx6yHE39p
2026-09-27 04:10:39 +02:00
glenn schrooyenandClaude Opus 5.5 571b884315 UX-08 phase 2b review: keep over-rating evidence, pin latch clearing, plainer rows
checks / unit (pull_request) Successful in 8m48s
infra-pin / fresh (pull_request) Successful in 1s
- During a bound episode an earlier over-rating count stays on the page (amber,
  under its own title); test_clamp pins it.
- test_messages pins that every latch row says how it clears.
- pv_entities description no longer claims the page names the entity (en, nl);
  allowlist hash updated for that option-desc line.
- Plainer texts: multi-inverter direction banner, "fine now" after an episode,
  and the e-stop, peak-forecast and peak-guard-waiting rows move to messages.py.
- TEL-12 DECISIONS points to UX-08 item 3 for the retired row rule.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-27 03:10:25 +02:00
adminandClaude Opus 5.5 d017fc67bf UX-08 phase 2b: short, plain status rows and page banners
checks / unit (pull_request) Successful in 8m47s
infra-pin / fresh (pull_request) Failing after 1s
Every Commissioning row and every page banner is now worded in
app/messages.py (row_*, banner_*): one sentence of at most 15 words, a red
row up to three sentences so a latch still says how it clears, banners at
most 12 words. No row names a Home Assistant entity: sensors by their
setting, solar sources by their place in the list. Reason codes and limits
stay on the log line and event list; rows keep the numbers a reader acts on.

UX-07 item 1: ClampWatchdog counts over-rating and integrator-bound
engagements separately, and after an episode each count shows under its own
alarm's title instead of both under "output clamp".

No row colour, visibility or banner order changed. Rows carry an "id" so the
tests pin meaning rather than wording. The row and banner kinds leave the
allowlist (200 -> 168, cap equal). DOCS.md gains "Status page"; choices are in
DECISIONS/UX-08-short-notifications.md.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LyR88rXETvwhTgx6yHE39p
2026-09-27 02:12:10 +02:00
glenn schrooyenandClaude Opus 5.5 50ccea3dd7 UX-08 phase 2a: short, plain notifications, and a ratchet for the rest
checks / unit (pull_request) Successful in 8m54s
infra-pin / fresh (pull_request) Successful in 1s
Every HA notification the add-on raises now has a title of at most 5
everyday words and a one-sentence body; a red alarm may use three so no
action is lost. The texts live in app/messages.py, the rule in STYLE.md,
and the detail that moved out in DOCS.md "Notifications", which each body
links to. No notification_id, trigger or cadence changed.

test_messages.py enforces the rule on every notification, fails any
notification worded outside app/messages.py, and ratchets the kinds not yet
rewritten (rows, banners, refusals, logs, options) through a shrinking
allowlist of 200. Six tests re-pinned from prose to meaning.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LyR88rXETvwhTgx6yHE39p
2026-09-27 01:00:54 +02:00
glenn schrooyenandClaude Opus 5.5 55a6d5dcdb SAFETY-40 review: integrator-bound WARNING gets its own notification id
checks / unit (pull_request) Successful in 8m46s
infra-pin / fresh (pull_request) Successful in 1s
A later anti-windup notice could replace a write-path BUG SIGNAL notice
under the shared goodwe_output_clamp id (escalation ignores the budget).
The WARNING now uses goodwe_integrator_bound and points to DOCS; the
cadence sentence in DOCS is corrected. Tests pin both ids (red on fd14569).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-26 23:08:44 +02:00
glenn schrooyenandClaude Opus 5.5 fd14569a71 SAFETY-40: the integrator bound is not a BUG SIGNAL; numbers from the clamp tick
checks / unit (pull_request) Successful in 8m47s
infra-pin / fresh (pull_request) Successful in 1s
The clamp alarm gave `i_clamped` (normal anti-windup) the over-rating BUG
SIGNAL text, printed `Decision.i_w` as "the loop asked for", and printed
`self.target` (after slew/freeze) as "was clamped to".

- clamp.loop_clamp_note(): i_clamped says "the loop's integrator reached its
  N W anti-windup bound" with this tick's command; clamped keeps BUG SIGNAL
  with the requested command and the clamp's own result.
- Decision carries i_bound_w / requested_w / clamped_w, set at the clamp.
- i_clamped still counts and notifies (same id, cadence, SAFETY-41
  escalation) but as a WARNING, amber row, plain title. A bug has its own
  notification budget and its text is not overwritten within an episode.
- test_clamp.py part 9: red on the old code per defect; 5 mutations killed.
- DOCS.md alarm section (and its stale 30 s cadence), DECISIONS/SAFETY-40.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LyR88rXETvwhTgx6yHE39p
2026-09-26 22:37:01 +02:00
glenn schrooyenandClaude Opus 5.5 770988c902 TEST-26: a missing value in a check is a named FAIL, not a traceback
checks / unit (pull_request) Successful in 8m44s
Checks and prints that indexed an empty list, exhausted next(), or formatted
None killed the rest of their file (FCST-06). Read them through the new
named_absence.py (nth/first/field/given/present) and conjoin a presence term.

- every site in the brief, plus the family the new scan and a sweep found
- test_named_absence.py: scans every test_*.py for unguarded filtered-list
  indexing, next() without a default and numeric formats on maybe-None
  names; proven to bite; prints what it cannot see, counted
- test_price.py 16a: the `_T17_CAPS is _T17_CAPS` tautology now grades the
  two assemble() calls' arguments
- test_control.py: coverage table re-measured on runs graded to the end

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BwRLw7eKYj2byVdwB6kbjU
2026-09-25 00:06:58 +02:00
Claude 8fa4febfef SAFETY-10: the whole decision path runs and nothing reaches the inverter
checks / unit (pull_request) Successful in 7m58s
Every optimiser defect this project has found was invisible from outside
while it was happening, and each was paid for at the meter first: SAFETY-45's
28 charge onsets an hour against a binding peak_cap_w, TARIFF-14's wrong
quarter-hour for 45 minutes in every 60, SAFETY-46's 598 Wh spent to gain
310 Wh. There was no way to watch what the optimiser WOULD do without letting
it do it.

`shadow_mode` runs strategies, arbiter, clamps and guards, records the
decision with its reason, and commands nothing.

⚠️ IT WRITES. It writes 0 W, on the ordinary heartbeat, through the ordinary
single writer. The inverter holds its last command forever - it has no meter
timeout - so "commands nothing" implemented as "stops writing" would leave
whatever was standing when shadow mode came on standing for as long as it was
left on, under a page saying nothing is being commanded. That is the failure
this repository keeps finding. Refreshing 0 W is also what
firmware/goodwe-master.yaml's 30 s stale-input watchdog requires of us; going
quiet would keep that board tripped for the whole run, which is an alarm being
used as a mode.

⚠️ IT IS NOT A SECOND WRITE PATH. No claim, no transport, no arithmetic of its
own. It is a substitution inside Controller._write_unit() - the single choke
point every write already reaches - in the same form as the three above it,
and it is the LAST of them, so SAFETY-28's gate and SAFETY-03's clamp still
grade the number the decision path produced.

⚠️ THE DEFAULT IS `auto`, NOT `true`, AND THAT IS THE CARD'S REAL CONTENT. The
Supervisor composes options as {**config.yaml defaults, **stored user
options}, so a new key with a new default reaches EVERY EXISTING INSTALL on
the next update - including the one regulating a real battery. A boolean
default-on would have stopped it silently. There is no mechanism by which one
key can default differently for a new install and an existing one, so
"default-on for new" is a value the add-on RESOLVES: `auto` is shadow while
control is STOPPED and live once it is STARTED. A fresh install ships
`auto_start: false` and comes up observing; an install that is controlling is
started and does not change by one watt.

THE FAILSAFES. Sign watchdogs (SAFETY-02/30): INERT - they grade
Inverter.standing_w(), which shadow mode holds at 0 W. Fed the shadow decision
they would disagree with a meter that never saw it and LATCH A TRIP THAT
SURVIVES INTO LIVE OPERATION AND A RESTART. Clamp (SAFETY-03), write gate
(SAFETY-28), meter freeze (SAFETY-18), peak guard: OBSERVE. Circulation
(SAFETY-31) and delivery (SAFETY-42): observe and may legitimately latch,
because their evidence is measured power. The operator stop is the one
deliberate change: enforced at the wire rather than as a P_SAFETY claim, which
would otherwise make every recorded decision read "stopped".

⚠️ RECORDED LIMITATION: _shadow_settle() re-seeds the carried command to what
stands on the wire, which makes the exit safe by construction - and therefore
the loop leg's shadow decision is ONE SLEW STEP, not a trajectory. A shadow
run answers "what would it command now", not "what would it have done next".
The strategies are unaffected; all three defects above are visible from one.

Graded on the writes and on the rendered surface, never on the flag: 22
mutations, no survivors, including one that lets a write escape and one that
goes silent instead of commanding 0 W. Closed loop on TEST-23 stage 3's rig,
same hour twice: live drives the pack to -2000 W and SoC 50.000 -> 62.331 %;
shadow commands 0 W throughout, SoC stays 50.0 exactly, and the arbitrage
decision is identical in action, instant, signed power, reason and arbiter
winner.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BwRLw7eKYj2byVdwB6kbjU
2026-09-14 17:25:43 +02:00
Claude Opus 5 e2efc765af SAFETY-38 round 4: the enumeration covered one sink, and it was not the one this codebase uses
checks / unit (pull_request) Successful in 5m12s
The scanner's two censuses between them scored ONE syntactic sink and called it
the family. Every one of census B's 16 members was a sentence that is APPENDED,
ASSIGNED to a `reason`-shaped name, or passed as a LOG ARGUMENT. Not one was
RETURNED - and census A's return bucket only ever held a callee formatting its
own PARAMETERS, so a method formatting its own ATTRIBUTES and handing the string
back was invisible to both. That is the whole describe() / explain() /
reason-builder family, which is where this repository actually keeps its
operator sentences. Worse than the gap: it was in NONE of the five blind spots
the tool printed about itself.

THE SCANNER, WIDENED - and it rediscovered both members without being told:

  * CENSUS C, the return sink, resolved through the returning method's CALL
    SITES so a returned KEY (store.unit_key, mqtt.unit_state_key - MAINT-05's
    card) is not mistaken for a returned SENTENCE. 53 returned pairs, 39
    reaching an operator, 16 of those sharing a format spec.
  * A sentence handed to a constructor as `reason=` or placed under a "text"
    dict key is a MESSAGE. That one line of the sink walker was hiding SIX more
    caller-built members, census B 16 -> 22.
  * Every census B and C row now prints whether the two interpolations share a
    FORMAT SPEC - the difference between a transposition that is silent and one
    that merely looks broken.
  * The blind-spot list is now TWO lists: what it scans (printed from the
    constants, so they cannot drift) and WHAT IT DOES NOT SCAN AT ALL, largest
    hole first - `%s`-style lazy logging, MEASURED at 31 calls across 8 modules
    and each one listed, not asserted.

CLOSED, both zero-byte survivors of a green 21-file suite:

  * clamp.py:253 ClampResult.describe(), requested_w <-> applied_w. No
    test_*.py mentioned describe() at all. It is the SS15 action-log row
    (main.py:1366) AND the ClampWatchdog notification reason (main.py:2452) -
    the alarm SAFETY-40 and SAFETY-41 are about. Under the swap the guard
    reports a setpoint clamped UPWARD, to +9999 W by a bound whose rating the
    same sentence gives as 2000 W. Pinned on the ORDERED PAIR on the contiguous
    literal at BOTH consumers, operands read off ctl.target and
    hass.writes[-1] - what the loop asked and what the device was sent - not
    off the ClampResult the swap lives in. 4 checks red.
  * peakguard.py:493 PeakDecision.explain(), projected_w <-> ceiling_w. "peak
    guard idle" was in no test_*.py. The row then reads "projects 5013 W under
    a 2300 W ceiling" - 2713 W OVER - on a row whose own words say idle and
    whose own flag says ok. Pinned on the decision and on the shipped status
    row. 3 checks red.
  * test_arbiter.py's scope-violation check, whose CLAIM was wider than its
    ASSERTION. Measured this round rather than left at source level: 0 bytes,
    21/21 green before, red now. 2 checks.

DISCLOSED, NOT CLOSED - 11 measured zero-byte survivors, each with its file
fingerprint and its 21/21 verdict, in the decision doc SS7e-SS7g. Three in
allocator.py's UnitPlan.explain(), three across arbiter.py's two explain()s,
two in tariff.py, two in arbitrage.py's trade reasons, one in main.py's
SoC-floor notification. An enumerated list with honest gaps beats a fifth round
finding a fifth instance.

CORRECTIONS THIS ROUND OWES:

  * The idle sentence does NOT reach main.py:3299/3302 - those are the
    floor-limited branch, where explain() returns self.reason before the idle
    literal is built. It reaches main.py:3313 and, on the release edge, 1951.
    1951 is disclosed unpinned.
  * SS4's "Every one of the ten is red" sat under a twelve-row table: it is the
    ten site_standing entries.
  * SS6b said "weaker evidence than A1-A3"; A4 was measured, so SS7d's
    "A1-A4 and B1" is the right list and SS6b now says it.
  * AND THE PROBE THAT GRADES THESE MUTATIONS WAS THE DEFECT, ONCE. Its first
    cut numbered the operands BY ORDER OF APPEARANCE, so after a transposition
    the other leaf took the same number and all thirteen mutant renders came
    back byte-identical - which reads exactly like "the edit is inert". Keying
    the value to the NAME fixed it. Habit 4, in the measuring instrument:
    MUTATION.md habit 16 is the new entry, and the count there is corrected to
    eleven rather than inflated.

14 mutations measured: fresh full-repo copy each, mounted :ro, bytecode purged
and the purge COUNT printed, the edit re-read from disk, length and sha256
printed on both sides, and every one required to change the EMITTED SENTENCE
and not merely the bytes. 12 survived the pre-round suite, 1 was already
caught, 3 are caught now. Full 21-file suite green on the final tree.

NOT ONE BYTE OF app/ MOVES. This card changes coverage only.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BwRLw7eKYj2byVdwB6kbjU
2026-09-05 22:38:40 +02:00
glenn schrooyenandClaude Opus 5 3527c8a04c SAFETY-41: escalate a sustained engagement, so a runaway is never held
checks / unit (pull_request) Successful in 4m59s
Review found the case I asked it to construct, and it is not a corner
case. The rate limit alone DELAYS A RUNAWAY: a benign one-cycle clamp
that spends the budget, then a continuous §10.3-shaped runaway, held the
runaway's first notification for up to 140 s - one REASSERT_S minus a
cycle. On the live install, where ordinary railing spends the budget
essentially all the time, a runaway arriving during normal operation
would be delayed with near-certainty. That is the "benign noise
suppresses the bug signal" shape this module's docstring is written
against, and the family the first attempt at this card died of.

THE ESCALATION. An episode that has not yet spoken because an EARLIER,
unrelated episode spent the budget speaks anyway once it has engaged
SUSTAINED_CYCLES = 3 times in a row. The discriminator is run length and
the two populations genuinely differ: the live flood was runs of length
ONE (engage, de-assert, engage), while a runaway engages every cycle.

Measured, and it costs nothing it was protecting:
  live scatter flood (305 cycles, 1-in-6)   11 -> 11 notifications
  chatter 1-engaged/3-clean over 8000 s     50 -> 50 notifications
  pinned 900 s quarter (floor is 5)          6 ->  6 alarms
  runaway delay after a benign episode     140 s -> 10 s

⚠️ MY COUNTERFACTUAL CHECK COULD NOT FAIL FOR THE DEFECT IT NAMED, and
review caught that too. It read `ClampWatchdog().note(True, ...) is True`
- a FRESH object, which only exercises the `last_alarm is None` branch,
the trivially-true one. A fresh watchdog has no earlier episode to be
held back BY. It now SPENDS THE BUDGET FIRST: benign clamp, gap past
CLEAR_CYCLES, then a continuous runaway, and asserts the delay is well
under REASSERT_S. That is the third instance in this file of the family
recorded at line 216 and at the 224 s sweep, and it was guarding the most
safety-critical property in the change.

Also pinned: `last_alarm` SURVIVING the de-assert. Review built the
mutation - if the de-assert also refreshed it, chatter collapses from 50
notifications to 1 and the alarm never fires again, with the suite green.
That is the "alarm that never fires" class, a different bug from one that
fires later. Now caught.

Both new checks verified against the mutations they name: removing the
escalation -> 1 FAILED; refreshing last_alarm on de-assert -> 1 FAILED.

Full suite: 21 passed, 0 failed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BwRLw7eKYj2byVdwB6kbjU
2026-09-05 18:13:09 +02:00
glenn schrooyenandClaude Opus 5 8790c4d38f SAFETY-41: rate-limit the RISING EDGE, which is where the flood came from
checks / unit (pull_request) Successful in 5m9s
Review falsified the first version of this change, and the correction is
the substance of it.

Raising REASSERT_S 30 -> 150 removed NONE of the owner's notifications.
The re-assert interval governs only the still-engaged path; the rising
edge fired unconditionally. At the measured ~5 s cycle the live pattern -
48 engagements in ~25 minutes, about one cycle in six - leaves ~25 s of
clean cycles between engagements, past CLEAR_CYCLES x 5 s = 15 s. So the
alarm DE-ASSERTED between almost every engagement and each one returned
as a fresh rising edge. Measured on the shipped class over that window:
48 episodes, 48 notifications at REASSERT_S = 30, and still 48 at 150.

The interval now bounds the NOTIFICATION RATE rather than the repeat rate
within one episode: `last_alarm` survives a de-assert, and a new episode
speaks only if the interval has elapsed. Same window afterwards: 51
episodes, 51 engagements, 11 notifications.

⚠️ NOTHING IS DROPPED, AND THE TWO PROPERTIES THAT MATTER ARE PINNED:
  - a PINNED loop still speaks 6 times in the 900 s billing quarter,
    against a floor of 5 (part 2, unchanged);
  - a rising edge from a COLD watchdog still fires IMMEDIATELY, so a
    runaway beginning from quiet is never held back by a budget spent on
    an earlier, unrelated episode. That check is the counterfactual and it
    is the half that would go red if the limit ignored elapsed silence.
Every engagement is still counted, every episode still increments, and
the action-log row is still written on every engaged cycle. The budget is
on notifications, never on evidence.

The new pin is written in wall-clock seconds and in the shape the field
produced, so it does not move when the constant does. Verified by
reverting the rising edge to unconditional: 2 checks go RED naming it.

Full suite: 21 passed, 0 failed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BwRLw7eKYj2byVdwB6kbjU
2026-09-05 17:06:29 +02:00
glenn schrooyenandClaude Opus 5 1d393ced22 SAFETY-41: correct the comment, and fix the check it cites
Review found two false statements in the comment and one weak check. All
three are fixed here; the constant itself is unchanged at 150 s and was
never in question.

1. "That caps this constant at 900/5 = 180 s" was FALSE ABOUT THE CHECK IT
   CITED. test_clamp.py part 2 sweeps i = 0..899 and the rising edge at
   i=0 is free, so it measured `1 + floor(899/R)` - one alarm more than a
   real quarter earns. Measured: 224 s was GREEN across the whole suite.
   Anyone raising this to 200 s would have had a green board and a
   requirement quietly unmet - the same defect recorded at
   test_clamp.py:216, one notch weaker.

   The check now grades floor(QUARTER_S / REASSERT_S) directly, so it
   enforces the ceiling the comment claims for it. Verified: 150 PASS,
   180 PASS, 181 FAIL, 224 FAIL. 180 is also the true requirement edge -
   on the worst sliding 900 s window 180 earns 5 alarms and 181 earns 4.

2. The "60 cycles of the §10.3 runaway" note was attributed to this module
   and truncated. It is main.py:2479 and reads "60 cycles of the §10.3
   runaway produce 0 write-path engagements and 2 loop-side ones". Quoted
   in full, attributed correctly.

3. "48 engagements in 25 minutes" was left implying a pinned rail. It is
   roughly one cycle in six - real, and far above the 2-in-60 the guard
   was sized for, but not continuous. Restated, and labelled as a live-log
   reading rather than a measurement in this repo.

Also recorded: the 1500 W tuning derivation is in the OTHER repo
(admin/goodwe NOTES.md, "Simulated 2 kW load step (gain 0.6, clamp
1500)"), so this repo cannot corroborate it and a reader should not go
looking here; and MIN_PER_QUARTER = 5 is a test-local integer, not a spec
figure - the 900 s quarter is system-wide but the 5 is not, so the 180 s
ceiling rests on one number a test author chose.

Full suite: 20 passed, 0 failed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BwRLw7eKYj2byVdwB6kbjU
2026-09-05 16:53:46 +02:00
glenn schrooyenandClaude Opus 5 753f700539 DEV-02: merge release/1.0, and close the two review blockers
checks / unit (pull_request) Successful in 4m15s
PR #43 was rejected on two findings and had gone unmergeable behind SAFETY-28
and the ALLOC-01 fix. This is the merge commit; the conflict resolution and both
fixes are below, because a merge that also changes behaviour has to say so.

THE MERGE, AND WHAT IT COST
===========================
Two conflicts in main.py, both where SAFETY-28 and this card touched the same
method:

  * `write_setpoint()` split into a site entry point plus a per-unit
    `_write_unit()` here, while SAFETY-28 put its record gate in the old
    single-unit body. `write_refusal()` now takes the INVERTER it is about.
    Asking it with `self.unit` - as release/1.0 does - would authorise A's share
    on B's wire, and would also trip test_inverter.py part 1's AST scan, which
    goes red on any read of a Controller N=1 view inside Controller.
  * the SAFETY-28 gate sits above the clamp and below the non-finite coercion,
    exactly where release/1.0 put it, and is now asked about `inv`.

Fallout the merge produced in the checks, re-aimed rather than relaxed:

  * every fixture that calls `write_setpoint()` DIRECTLY - the clamp probe, the
    hung-heartbeat experiment and its serialised counterfactual, the split
    deadline probe - now arms a real allocation record first. test_inverter.py
    grows an `arm()` built through the shipped `resolve()`, the same shape
    test_clamp.py's is: the per-unit envelopes are filed as real `supervised`
    claims and the site target is their sum, so the water-fill has exactly one
    answer and the fixture cannot quietly become its own allocator.
  * test_clamp.py's two-unit failsafe fixture assigned `c.units`, which DEV-02
    made a derived property with no setter. It appends a real `Inverter`.

BLOCKER 1 - AC 4's ARBITER-BOUND EVIDENCE WAS VACUOUS
=====================================================
test_peakguard.py claimed "each unit's `supervised` bound is ITS OWN `max_w` -
give inverter B a different rating and the claim filed on inverter B moves with
it", and compared B's bound against `_b2.max_w`. `second_inverter()` DEFAULTED
B's rating to `LIVE_MAX_W`, which is A's. IT COMPARED (-5000, 5000) AGAINST
(-5000, 5000): a number against itself, unable to observe the failure it named.

Reproduced: filing the per-unit `device`/`supervised` claims from
`self.inverters[0]`'s numbers while leaving `actuator=self.actuator_of(..., inv)`
alone left ALL 19 FILES GREEN. At a roster of two with A=5000/B=3000 that makes
inverter B's planned envelope (-5000, 5000) instead of (-3000, 3000) - a 2000 W
over-command the arbiter believes is supervised. It is a DIFFERENT defect from
the actuator variant the static routing pin catches, and only the actuator
variant was in the mutation table.

  * `second_inverter()` gives B 3000 W - a hypothesis, marked as one - for every
    fixture in the file, so no check there can compare B against A by accident.
  * the claim is asserted against LITERAL numbers rather than against an
    expression that can read the same object twice, for `supervised` AND for
    `device` (whose `dev` had the same defect), plus the envelope the ARBITER
    RESOLVED for B - a claim filed right and resolved wrong is the same defect
    one layer down.
  * a PRECONDITION check fails if the two ratings are ever made equal again.
  * the BOUND mutation is in the table, beside the actuator one, and was
    observed RED (3 checks in test_peakguard.py) via tools/mutation_run.sh.

⚠️ THIRD INSTANCE THIS SESSION of a check whose DATA cannot reach the failure it
names - ARB-03's call-site scan saw 3 of 8 appends, ALLOC-01's replay generator
saw 0 escapes where a widened one saw 39,991. MUTATION.md gains a section for it
beside the stale-bytecode and masking ones, and the rule is written at the line:
ANY CHECK ASSERTING "X DIFFERS FROM Y" MUST BE RUN ONCE WITH X AND Y ACTUALLY
MADE DIFFERENT.

BLOCKER 2 - THE LATCH WAS SILENTLY DISARMED BY THE ROLLBACK ROUND TRIP
======================================================================
store.py's rule 2 keeps the flat keys "so a rollback still finds its latch". The
operator path that rule contemplates is a ROUND TRIP, and this card lost the
latch on it:

  1. install migrates          -> schema_version=1, unit/inverter-a/... = False
  2. operator DOWNGRADES; SAFETY-02 trips inside the downgrade window and the
     old add-on writes only the flat `sign_tripped: true`
  3. operator upgrades again   -> `rep.ran` is False, so `_grade_store_migration()`
     returned early, and `Inverter.__init__` read the namespaced key: False

Observed: the controller came up with `sign_wd.tripped = False` while
/data/state.json said `sign_tripped: true`. That is store.py's own header
sentence - "the file still says sign_tripped: true, the banner is green, and the
controller resumes driving the wrong way" - rebuilt by the version marker. A
firmware version change with a rollback path was performed on this site on
2026-09-02, so this is not hypothetical.

Three changes, each graded by a mutation observed RED:

  * THE OPERATOR'S CLEAR CLEARS BOTH SPELLINGS. That is what removes the
    "re-arm forever" objection the `rep.ran` gate existed to answer: with the
    fossil cleared, `flat True + namespaced False` is unambiguously a
    downgrade-window latch.
  * A TRIP MIRRORS THE FLAT PAIR. Rule 2 only ever covered the latch present AT
    MIGRATION TIME - nothing flat was written for a trip taken afterwards, so an
    operator who downgraded found `sign_tripped: false` and came up DRIVING.
    store.py claimed the staleness could only fail toward a SPURIOUS latch. It
    could not; that sentence is corrected rather than left standing.
  * THE GUARD RUNS ON EVERY START, and asks the STORE - not the roster - whether
    anything namespaced is latched. A mirrored trip on B must not re-arm a
    healthy A, and the store is the right place to ask because it holds every
    `unit/*/sign_tripped` this install has written, including one belonging to a
    unit that is not in today's roster.

Graded by the three-step scenario itself, run end to end in test_inverter.py
part 2, with all three preconditions asserted - including that the catching
start did NOT migrate anything, which is what used to skip the guard. Part 2's
idempotence check now PRESSES the button instead of hand-writing the store,
because the state it used to construct is not one the shipped clear path can
produce. Part 3 grades the mirror and the clear on a real roster of two.

test_watchdog.py's "the flat key is NOT written" assertion is re-aimed rather
than deleted: its argument was right about the READ and wrong about the WRITE.
Nothing at runtime reads that key, and the one thing that does ignores it
whenever any namespaced latch is set - which a sibling's trip always leaves.
What its absence actually cost was the rollback.

HANDOVER.md and DOCS.md said the flat key "is never read again", which was the
instruction an operator clearing a trip by hand would follow. Both corrected: it
is a maintained rollback view, it IS read on every start, and clearing a trip by
hand means clearing both spellings.

MUTATIONS THIS ROUND, each applied on a purged tree via tools/mutation_run.sh
and observed RED:
  * per-unit `device`/`supervised` BOUNDS from `self.inverters[0]`, actuator
    left correct                                   -> test_peakguard.py 10g
  * `_grade_store_migration()` gated on `rep.ran`   -> test_inverter.py part 2
  * the operator's clear leaving the flat keys set  -> test_inverter.py part 2/3
  * a trip not mirroring the flat pair              -> test_inverter.py part 3
  * the guard asking only `self.inverters[0]`       -> test_inverter.py part 3

19/19 files green on the merged tree. No hardware was touched.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BwRLw7eKYj2byVdwB6kbjU
2026-09-03 23:37:23 +02:00
glenn schrooyenandClaude Opus 5 e306c74cb8 DEV-02: per-instance inverter objects, so nothing is graded against a sibling
checks / unit (pull_request) Successful in 4m15s
Every piece of per-device state in the Controller was a scalar, and several of
them are safety inputs. app/inverter.py introduces an `Inverter` that owns its
entities, its rating, its device range, its SignWatchdog, its last_write and
its last_beat, under store keys namespaced by unit name. The Controller holds a
list of them and keeps only what is genuinely site-level: the P1 reading, the
site integrator, and the tariff quarter.

WHAT THE SCALARS WERE SILENTLY ASSERTING

  dev_min/dev_max   one pair, read from one setpoint_entity. A second
                    inverter's rating was NEVER READ AT ALL, so its clamp, its
                    freeze rail and the peak guard's achievable_w were the
                    first one's numbers.
  soc               one reading into the maintenance FSM, SAFETY-24's pack
                    floor and arbitrage's bounds. An average lets the emptier
                    pack be driven below its own floor.
  sign_wd           ONE SignWatchdog, whose own docstring says "one instance
                    per actuator", latched under FLAT store keys - so a trip
                    caused by B latched A across restarts and one operator
                    press cleared both.
  last_beat         one deadline and one serialised hass.call(), so a hung
                    write to A ate B's 30 s layer-1 budget.

actual_w BECAME SITE LEVEL WHILE THE READINGS BECAME PER-INSTANCE, and those
are opposite directions on purpose. compute()'s anti-windup test is
`abs(prev_w - actual_w) > saturation_w` with prev_w the SITE target, so feeding
it one inverter's power compares a site number against a unit number, trips the
saturation freeze permanently and leaves a standing grid error. Measured on
admin/goodwe's two-master rig (tools/alloc_sim.py --splits, 2 kW load, 40
cycles), worst |delta| between splits at the meter:

    gain    one unit's power      the site sum
    0.2           510 W                0 W
    0.4           250 W                0 W
    0.6            50 W                0 W

That was ALLOC-01's disclosed finding; test_alloc.py part 8 kept its stimulus
and now grades the other row.

THE STORE MIGRATION IS GRADED, NOT MERELY PERFORMED. sign_tripped/sign_reason
move to unit/<name>/... once, verified by READING BACK what was written, and
the version marker is set only when nothing that carried state was lost. The
flat keys stay in the file so a rollback still finds its latch. And __init__
compares the pre-migration flat latch against what unit A actually came up
with: if the latch did not survive it is RE-ARMED from the legacy value and
shouted about. A latch that silently fails to migrate is a disarmed safety
guard on an install whose state file says it is protected - which is strictly
worse than never persisting it, because now there is evidence saying it is
fine. test_inverter.py part 2 breaks the migration and watches the guard fire.

HEARTBEATS ARE INDEPENDENT AND THE BUDGET IS DERIVED. Each inverter owns its
deadline, the refreshes go out concurrently, and each write is bounded by
WRITE_BUDGET_S = 4 s. The inequality is graded rather than asserted: 4 +
heartbeat_s's schema maximum of 25 < 30, validate.FIRMWARE_INGEST_VETO_S.
Verified by injecting a transport that accepts and never answers.

live_units() ANSWERS HONESTLY. A unit whose every write has been rejected for a
whole layer-1 window is not commandable; the allocator drops it, the survivors
carry its share, the action log names it, and the dropped unit is commanded
0 W rather than left standing on its last share. A roster entry with NO
setpoint_entity is deliberately not handled there - that is a configuration
that cannot be delivered, and it reaches main.py's refusal branch, which is how
that branch keeps a live trigger after this card removed its old one.

AT N=1 NOTHING MOVES. The removed scalars survive as read/write properties of
the sole inverter, so every existing replay runs unmodified - and they REFUSE
at N>=2 rather than answering for the first inverter, which is the tripwire on
a consumer that was never made per-instance.

EVIDENCE. 19 files green. test_inverter.py is new (82 checks). Eighteen
mutations were applied to the shipped modules on a purged tree via
tools/mutation_run.sh and each was observed RED. Two of them SURVIVED first
time and the checks were changed rather than the table: the serialised dispatch
and the shared last_beat both passed while part 6 gathered its own writes and
computed its own `due` list. send_heartbeats() was extracted from run_control()
so the shipped dispatch is reachable by a check at all.

INVERTER B STILL DOES NOT EXIST. build_roster() returns exactly one inverter
from the flat options and is the one function CFG-04 changes; every two-unit
figure here is architecture, and the second rating in the checks is marked a
hypothesis.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BwRLw7eKYj2byVdwB6kbjU
2026-09-02 14:50:43 +02:00
Claude 591c35ed01 SAFETY-28: gate the write path on the allocation record, not on key count
checks / unit (pull_request) Successful in 4m19s
specs §1.5 makes "any configuration in which two writers can reach one
actuator" a non-goal. That non-goal was enforced by counting config keys:
validate.py's ACTUATOR_WRITE_KEYS = ("setpoint_entity",), consumed at rule 1,
with a comment stating the guarantee outright - "there is exactly one such
key, so a second writer is not expressible in the options schema at all".

That was true and it graded THE SHAPE OF THE OPTIONS SCHEMA, not the writes.
Add CFG-04's per-inverter config - a roster of inverters each with its own
setpoint_entity - and there are two real writers with len() of that tuple
still equal to 1. The check stays green while the property it protects is
gone. sim/inject.py's two_writers scenario asserted on the same tuple, so it
went green too. That is this repository's named failure mode: a check that
observes something other than what it claims to observe.

Demonstrated rather than argued. test_validate.py part 2 now constructs the
hazardous per-inverter config, asserts that the OLD proxy is still green on
it, and then asserts the new check refuses it. Against release/1.0's
validator the updated sim scenario reports: "validate_startup_config()
ACCEPTED a configuration in which 3 declarations reach the ONE actuator
number.goodwe_setpoint ... the old proxy reports 1 write key(s) on this same
config and is therefore GREEN on it".

THE WRITE PATH IS NOW GATED ON THE RECORD
=========================================
Controller.write_refusal() asks Allocation.authorises() whether the single
allocator placed exactly this number, for this unit, on this tick.
write_setpoint() refuses anything else. A second writer with arithmetic of
its own cannot satisfy that - its number appears in no record - so it has to
file a Claim and go through resolve(), which is the one allocator. "Exactly
one allocator per shared resource" stops being a convention somebody can
forget and becomes something the write path checks.

The refusal is a SUBSTITUTION, not a return: 0 W goes on the wire in place of
the number nothing stands behind. Returning would leave the inverter latched
on its last command with the ESP32 heartbeat still being fed - holding an
unauthorised setpoint quietly, which is the outcome the gate exists to stop.
AC 1 is "refused at the write path, not merely logged", and test_clamp.py
part 7a grades the device's writes, not the log.

The gate sits BELOW the non-finite coercion and ABOVE the clamp. Below,
because a nan is loss of input and rule 1 has already turned it into 0 W.
Above, because the question is who chose this number, and the answer is only
meaningful about the number that was asked for - gating the CLAMPED value
would refuse exactly the cycles SAFETY-03 exists for, since a clamped write
differs from the allocator's share by construction. Mutation M7 moves the
gate below the clamp and turns nine checks red, part 6c among them.

A STALE RECORD CANNOT BE REPLAYED
=================================
Every Allocation now carries the `tick` it was made for. It is handed IN by
the caller - plan(..., tick=) - rather than counted inside the allocator,
because test_alloc.py part 10 grades that the module holds no state at all,
and a serial number incremented in there would be the cached-across-ticks
thing the envelope rule forbids wearing a different hat.

Controller.alloc_tick advances ONCE PER RESOLUTION, not once per loop
iteration, and both halves are load-bearing:

  * a new allocation makes the previous record stale immediately, so a record
    whose envelopes have moved cannot authorise a write. That is the replay
    half (AC 2), graded by capturing a real record, running another real
    cycle, putting the old one back and observing refusal.
  * the "inputs missing, not yet stale" hold returns BEFORE the allocator
    runs, exactly so one dropped meter reading does not zero the inverter,
    and the heartbeat re-affirms self.target through this same gate while it
    does. A tick incremented per loop iteration would refuse that heartbeat
    and turn the hold into the outage it exists to prevent. Graded.

An UNSTAMPED record (tick None) authorises nothing: "I cannot say when I was
made" fails closed rather than reading as tick zero.

THE FAILSAFE CANNOT DEADLOCK BEHIND THE GATE, AND HERE IS WHY
=============================================================
write_setpoint() is also how layer 2 commands 0 W. cycle()'s two refusal
branches substitute a 0 W failsafe and write it like any other cycle;
shutdown() and the operator's stop button do the same. EVERY ONE OF THOSE
RUNS WHILE THE ALLOCATOR HAS REFUSED - ok is False and there are no shares -
so a gate that asked the allocator's permission to command zero would block
the safety write behind the very component whose failure the safety write
answers. A gate that can do that is worse than the hole it closes.

Resolved by authorising 0 W unconditionally, and on the VALUE rather than on
a failsafe=True flag: a flag is an assertion by the caller, which is exactly
what a second writer would pass; the value is a fact about what will be
written. The argument that this is safe and not merely convenient is that the
hazard §1.5 names is N-times loop gain from BROADCAST - handing every inverter
the same target so each supplies it in full (allocator.py's opening argument;
TEST-19 measured a permanent 4000 W p2p limit cycle at gain 1.0 with no guard
firing). At S = 0 the broadcast and the correct allocation COINCIDE: a_i = 1
for every unit gives every unit 0 W, which is exactly its share. There is no
over-command to make at zero. Said at the line, in write_refusal().

test_clamp.py part 7c drives it end to end through the real cycle() and the
real REFUSE_EMPTY branch: the allocator refuses every tick, the device still
sees 0 W, and the action log says ARBITER: REFUSED rather than WRITE REFUSED
so the two failures stay distinguishable to whoever has to debug them.

unmet_w IS STILL NOT ok
=======================
The gate reads ok and the unit's share and never unmet_w. allocator.py:179
says why: an allocation that could not place every watt is still safe to
write, and fusing them would let one saturated inverter park the whole site.
Graded on a record with 3800 W unmet and every share legal - mutation M5 adds
`or self.unmet_w` to the gate and that check goes red.

THE CONFIG CHECK, REPLACED RATHER THAN DELETED
==============================================
actuator_writers() counts WRITERS PER ACTUATOR instead of option keys. It
walks the options TREE rather than looking for a container called `inverters`,
because CFG-04 has not chosen that name yet and a census that guessed wrong
would go green while two writers existed - the same defect one step along.
Entity ids are folded to lower case so a second writer cannot be smuggled in
as Number.X versus number.x.

Two inverters with two entities are ACCEPTED - that is what the per-inverter
roster is for, and a validator that refuses the feature it guards is one
somebody switches off. Two declarations aimed at ONE entity are refused,
naming the actuator and every writer pointed at it. That includes the case an
author will meet first - keeping setpoint_entity as A's and listing A again -
because "they happen to be the same entity, so it is fine" is precisely the
reasoning that makes two writers invisible.

ACTUATOR_WRITE_KEYS survives ONLY as the enumeration a census needs, with its
guarantee comment deleted; nothing asserts on its length any more. Keeping the
name is also what stops admin/goodwe's current two_writers scenario failing on
an AttributeError between the two merges.

WHAT NEITHER CHECK OBSERVES, SAID OUT LOUD
==========================================
The census sees CONFIGURED writers. A second write path added in CODE - a
hass.set_number() call next to some new strategy - declares nothing and is
invisible to it, exactly as it was invisible to the tuple. That half is not
closed at startup and cannot be; it is closed at runtime by the record gate,
which does not care what the options look like or who called the method. The
two checks are deliberately different kinds, and only the runtime one survives
a schema this file has not seen yet.

EVIDENCE
========
* Full 18-file suite green on a purged tree (tools/mutation_run.sh).
* Verified by breaking it - seven mutations, each on a purged tree, each
  reverted and re-verified:
    M1 remove the gate                -> test_clamp red (4 checks)
    M2 make the zero exit an amnesty  -> test_clamp red (12 checks)
    M3 drop the tick comparison       -> test_clamp red (5 checks)
    M4 delete the census refusal      -> test_validate red (3 checks)
    M5 fuse unmet_w into ok           -> test_clamp red (1 check)
    M6 freeze the tick on the live path -> test_clamp red (2 checks)
    M7 move the gate below the clamp  -> test_clamp red (9 checks)
* AC 5: no existing check was weakened. The two edits to test_clamp.py are
  fixtures, not assertions - parts 5 and 6c call write_setpoint() directly
  with a number nothing allocated, which is now refused, so they say where
  their number came from. Every assertion in both parts is unchanged, and
  part 7f asserts that across part 3's sixty real cycles the gate refused
  zero writes.
* admin/goodwe's TEST-19 norig scenarios (planner_binding, two_master_plant,
  two_master_broadcast) still pass against this tree - they import the
  add-on's control law across the repo boundary.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-02 13:56:48 +02:00
glenn schrooyenandClaude Opus 5 186e13ceca ALLOC-01: allocate the site grid target, sum-invariant, never broadcast
checks / unit (pull_request) Successful in 4m6s
ARB-03 left `allocate()` as a documented seam that passed through at N<=1 and
DECLINED at N>=2, with the reasoning recorded at the line: the obvious
placeholder - hand the site target to each inverter - IS the ARCH-01 fault, and
"a placeholder that cannot be told apart from the real thing by any guard we
have is worse than no placeholder". This fills the seam.

WHY A BROADCAST IS A FAULT AND NOT AN INEFFICIENCY. The control primitive is
meter emulation: the master reports a FABRICATED grid reading and the inverter
regulates itself to it, so one number means "the battery moves X W" to this
add-on and "the grid is at X W" to the inverter - an identity that holds only at
N=1. Hand two inverters the same target and each supplies it IN FULL, so the
loop gain at the meter becomes N times the per-unit gain. Reproduced on
admin/goodwe's two-master rig against this tree: -400 W export overshoot at
gain 0.6, and at gain 1.0 - which config.yaml accepts as its documented maximum
- a permanent 4000 W peak-to-peak limit cycle, commands alternating
1000/2000/1000/0 W, with NOT ONE GUARD FIRING. The sign watchdog is evaluated on
every cycle and never trips, because the disagreement flips on alternate ticks
and never holds its 180 s window.

WHAT WAS BUILT. `app/allocator.py`, host-side and strictly above the driver
seam. It consumes intervals and a number and nothing else - no claims, no
priorities, and no measurement, because an allocator that read P1 would be a
SECOND integrator on the site measurement.

  * ENVELOPE CLAMP, from ARB-03 stage 1's `UnitBounds`, read PER TICK. `plan()`
    is a pure function and the module holds no state, so there is nowhere for a
    construction-time envelope to be cached.
  * WATER-FILL by weight, with the surplus of a full unit moving to the others.
    Weights express PREFERENCE, envelopes express PERMISSION: a zero weight is
    honoured while another unit has headroom and overridden when it does not,
    because the SUM is the safety property and stranding capacity behind a
    comfort choice manufactures a standing error at the meter.
  * LARGEST-REMAINDER ROUNDING. The target is rounded ONCE, at the top; every
    sum below that line is integer arithmetic, so it cannot drift. Measured: a
    per-unit round() drifts -125 W over 50 000 ticks at three inverters.
  * THE ALLOCATION RECORD, with `unmet_w`, `dropped` and a per-unit reason.
    `ok` is one boolean for SAFETY-28 to gate on, and `unmet_w` is deliberately
    NOT fused into it - a saturated inverter must not park the whole site.

THE STABILITY PROPERTY IS STRUCTURAL. With sum(a_i) = 1 the gain at the meter is
sum(a_i * g_i), a convex combination of the per-unit gains, so it lies in
[min g_i, max g_i] FOR ANY SPLIT. That is what makes the weights a comfort
choice rather than a tuning parameter, and it is why a bad split cannot
destabilise the site. Graded directly, and measured end to end: 90/10, 50/50 and
100/0 give a bit-identical aggregate trace at the meter, and a gain sweep to 1.0
at every split has a flat tail at all 84 combinations.

THE TWO REFUSALS main.py NOW MAKES, AND WHY THERE ARE TWO. `allocated=False` no
longer means "no allocator"; it means no safe split EXISTS - a mis-routed claim,
an empty envelope set, or a split that could only be made by commanding one pack
to charge while another discharges. Separately, and this guard is the price of
making allocate() succeed rather than something inherited, main.py refuses to
act on a valid split it cannot DELIVER: there is one `setpoint_entity`, so
writing the site target to the one inverter it can reach would over-command that
inverter by exactly the other's share. Commanding a partial site is a worse
instruction than commanding nothing. DEV-02 gives it the second writer.

scope_violations() IS NOW CONSUMED, AND AS A REFUSAL. ARB-03 left it logging
without changing the resolution. A mis-routed claim means the number about to be
divided may itself be wrong, and dividing a number that may be wrong is worse
than not dividing it - the same answer clause 3 already gives a contradiction.
It is NOT promoted into an envelope: a unit-scoped claim that landed on the site
names no unit, so promoting it would mean guessing one, or applying one
inverter's rating to a sibling that does not have it.

AT N<=1 IT IS A PASS-THROUGH, BYTE-IDENTICAL: the share is the site target, as a
float, unrounded and unclamped. All 17 existing suites replay unedited.

test_peakguard.py part 10h and test_arbiter.py part 7 were RE-AIMED, not
deleted. PR #40's reviewer proved that refusal branch was unreachable and
untested once; removing its trigger without giving it a new one would have
rebuilt the hole. Part 10h now drives three real cycles - a deliverable split, a
dead sibling, and every master stale - and grades all three.

KNOWN AND NOT CLOSED HERE: at a roster of two the loop's `actual_w` is one
inverter's power used as a site measurement, because the add-on binds a single
`inverter_power` sensor. That is the SENSING half of the same N=1 identity this
card removes from the COMMANDING half, and it makes the aggregate trace
split-dependent below gain 1.0. Measured with its counterfactual in test_alloc.py
part 8 and tools/alloc_sim.py --splits. It belongs to DEV-02.

Verified: all 18 suites green in the CI image. 16 mutations run through
tools/mutation_run.sh on a purged tree; 13 red, and the 3 survivors are recorded
in test_alloc.py part 12 with the reason each cannot be caught.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-02 10:42:33 +02:00
Claude b68f288fef TEST-11: pin the clamp guard to the write it reads
checks / unit (pull_request) Successful in 3m40s
check_output_clamp() sits one line below `await self.write_setpoint(self.target)`
in cycle(), and moving it above the write left test_clamp.py, test_freeze.py and
test_loop.py ALL GREEN. Measured on the move itself before this commit; measured
again after, where test_clamp.py part 6 goes red and the other two are still
green - the gap was real and it was only ever in this file.

WHAT IS ACTUALLY LOST. The guard has two evidence sources. `self.loop_clamped`
is set from the Decision well above the write and survives the move, and on the
10.3 runaway replay it is the source of every engagement the alarm reports (0
write-path engagements against 2 loop-side ones) - which is exactly what makes
the move nearly invisible. `self.clamp_last` is assigned by write_setpoint() and
by nothing else, is None until it has run, and is what `engaged_write` reads at
main.py:856. Moved above the write, that consumer goes quietly false and a
DEVICE-bound clamp - max_w above the inverter's own rating, SAFETY-20's install -
is reported by nothing. A guard whose second evidence source can be silently
disconnected is one refactor from being half a guard.

WHAT THE CHECK PINS, AND WHAT IT DELIBERATELY DOES NOT. Not the position: the
comment at that line warns against tidying SAFETY-03's ordering and SAFETY-18's
into one rule, and a check a rename breaks is worse than none. It pins the
CONSEQUENCE - what `self.clamp_last` held each time the guard consulted the
watchdog - using a spy subclassed from the shipped ClampWatchdog over a
slew-limited ramp where every cycle's command is a different number, so "this
cycle's evidence" and "last cycle's" are distinguishable at all. The spy hooks
`clamp_wd.note()`, the consumer, rather than the guard's name: that is what
keeps a rename legitimate. The same assertions are re-run through a controller
whose guard is renamed and whose write lives in a helper, and were verified
against main.py itself - renaming the method throughout AND moving both calls
into a new `_emit_and_guard()` helper keeps part 6 green; swapping the two calls
turns it red on a line that names clamp_last.

WHY AC 3 NEEDED A NEW STIMULUS, AND WHY IT IS NOT DRIVEN THROUGH cycle().
Through the real cycle() the write-path half cannot engage: the arbiter files
the device range and max_w as P_SAFETY LIMIT claims, so resolution.target_w is
already inside both bounds before write_setpoint() re-applies them. That
duplication is deliberate defence in depth; part 6 now MEASURES the zero
engagements rather than leaving it as a claim in a comment, and then drives the
write path directly at max_w 5000 against a +-2500 W device - the wire carries
2500 W, every loop-side flag stays clean, and the alarm fires on clamp_last
alone. With the two calls swapped the same stimulus clamps the same value and
the alarm is silent, which is the ticket in one pair of runs.

main.py gains one comment sentence naming the check, mirroring the one
SAFETY-18's block already carries for test_freeze.py part 5. No behaviour
changes.

Full suite: 17/17 green in goodwe-addon-ci.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-01 07:31:26 +02:00
glenn schrooyenandClaude Opus 5 7b4877d56d TEST-15: purge the bytecode cache before a mutation run, not after
checks / unit (pull_request) Successful in 3m35s
FCST-03's developer reverted `self.provisional` to `here.provisional`, re-ran,
and reported the mutation as a survivor. It was not one. CPython validates a
cached `.pyc` on (source size, source mtime truncated to whole seconds), and
that edit moved neither number - same length, same second - so the interpreter
loaded the bytecode it already had. Disassembly settled it at the time: the
source read `here`, the running code loaded `self`. A mutation run had graded
code that was not there, with no error and exit status 0.

This does not make the results already on the record wrong. It makes them
UNVERIFIED, and that distinction is the whole card - so nothing here re-runs a
campaign and nothing here quietly assumes the old numbers hold.

REPRODUCED, THEN CLOSED. test_bytecode.py builds a real package whose two
return values are the same length, imports it in a real subprocess, rewrites it
inside the same second (retrying until both writes land in one whole second -
milliseconds, no sleep) and reads back which value ran. Part 1 shows the
interpreter running SELF off a file that says HERE.

AND THE TWO OBVIOUS MITIGATIONS DO NOT WORK. Measured, not read off
documentation: `python3 -B` and PYTHONDONTWRITEBYTECODE=1 are write-side only.
Neither stops an EXISTING stale .pyc being read, and a mutation run always has
one, because the previous run wrote it. Part 2 grades both still running the old
code. The advice in test_control.py's coverage audit led with `-B`; it is
corrected here - the purge is the half that works, and `-B` earns its place by
keeping THIS run from leaving a cache for the NEXT edit to inherit.

NO SLEEP ANYWHERE. One-second mtime resolution is the mechanism, not the enemy.
Waiting it out would slow every run down and would still only cover the edit
somebody remembered to slow down.

THE HARNESS. tools/mutation_run.sh purges, prints a sha256/byte fingerprint of
every app/*.py it is about to grade - so a mutation report can say WHICH source
produced it, which is the reviewer's addition to this card - runs each suite
under `python3 -B`, refuses a tree with no test_*.py (CI-01's rule, for CI-01's
reason), and fails if a cache appears during the run. It takes the tree as an
argument so the infra repo's replay harnesses can call it without being moved.

WHERE IT IS SAID (AC 2). MUTATION.md carries the mechanism, the measurement,
the reporting rules and the survey, and every one of the 16 suites now points at
it from its docstring. That list is DERIVED FROM THE TREE by test_bytecode.py
part 5, so a new suite that joins this directory without the pointer is red -
the same failure shape CI-01's file glob exists to prevent.

CI WAS ALREADY IMMUNE, AND IS DESCRIBED THAT WAY (AC 4). Verified rather than
reasoned: with the checkout bind mounted `-v "$WS:/w:ro"` the interpreter writes
no __pycache__ into the tree at all, and it fails SILENTLY - no error, exit
status 0 - while the same probe on a writable mount produces one. Each job also
rm -rf's its workspace and clones afresh, so nothing crosses between jobs on the
shared runner. PYTHONDONTWRITEBYTECODE=1 is added as belt and braces only: the
`:ro` is one character wide and the next person debugging a write will be
tempted by it. Part 6 grades both ON THE DOCKER COMMAND LINE rather than on the
file - the first draft searched the whole workflow and stayed green after the
flag was deleted, because the comment explaining it still named it.

THE SHIPPED ADD-ON IS NOT AFFECTED and the question is closed:
goodwe_controller/Dockerfile has set PYTHONDONTWRITEBYTECODE=1 since it was
written. There is no deploy-side finding.

THE SURVEY (AC 3), in MUTATION.md, scoped BY THE PROPERTY. The defect is
one-directional - a mutation that never took leaves the suite green, so stale
bytecode manufactures SURVIVORS and cannot manufacture a red - which puts every
"all red, no survivors" claim in the window out of scope, along with mutations
executed in-process (SAFETY-07's B1/B2/B3, test_peakguard parts 7 and 10, where
no source file is edited) and everything run after the purge discipline landed
on 2026-08-31 (SAFETY-24, SAFETY-26, OPT-04, FCST-03's re-run). What is left is
the recorded SURVIVORS from source-edit runs before that date. Two were re-run
here under the harness and both still stand: TARIFF-01's record_block() ignoring
its policy argument, and SAFETY-03's abs() on the clamp limit - 15 suites green
each, on the tree as it stood. The rest are labelled still-unverified rather
than assumed or re-run; each is one harness run to close, and the moment to
spend it is when somebody next touches that module.

OUT OF SCOPE AND RECORDED: the infra repo's sim/ replay harnesses import the
add-on and write bytecode into both trees (goodwe/sim/__pycache__ exists today),
so SAFETY-02's headline replay carries the same exposure. mutation_run.sh takes
a tree argument for exactly that, but the change belongs in that repo and some
of those harnesses want the rig.

RED AND GREEN. Every new check was broken and watched fail: the purge commented
out of the harness turns part 4 red (and its non-vacuity probe already proves
the fixture would mis-grade without it); one docstring pointer removed turns
part 5 red naming the file; `:ro` and the `-e` flag removed from the workflow
turn part 6 red. Full suite green, 16 files, in the CI image on a read-only
mount - the shape the runner uses.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-01 02:07:09 +02:00
glenn schrooyenandClaude Opus 5 4e66583a52 SAFETY-03 review fixes: both clamp stages always run, and two checks that could not fail
1. BEHAVIOURAL, and a regression this PR introduced. clamp_to_rating() returned
early from the max_w stage, so the device bound was applied only when the rating
bound had NOT fired - the bigger the overshoot, the less the guard did. At max_w
5000 against a +-4000 device, +9999 emitted +5000 W, outside the device range,
while +4500 was correctly held to +4000. It undid the pre-PR guarantee "never
send a value the device will reject outright" and undercut this module's own
case for max_w-not-min(), which rests on that stage catching a validation that
did not run. Both stages now always run; the result names both bounds when both
bite (max_w+device). Asserted over a 492-point sweep, because the defect was
invisible to any single-value check sitting inside one stage.

2. The hysteresis check issued range(CLEAR_CYCLES - 1) clean cycles, which at
CLEAR_CYCLES = 1 issues zero, passes, and prints "0 clean cycles do NOT clear
it" - green for the chatter setting the constant exists to prevent. Now: ONE
clean cycle must not clear the alarm, a literal that does not move with the
constant, and the de-assert count is measured by looping until it clears.

3. The re-assert check stimulated at REASSERT_S + 9, green for any value
including 3600 - the hour of silence the module promises not to produce. Now
stated in wall-clock terms: a loop pinned across the 900 s capacity-tariff
quarter must speak at least 5 times and on no more than 20% of cycles. Pinned in
both directions.

Red confirmed for each: the restored early return (3 checks), CLEAR_CYCLES = 1
(1), REASSERT_S = 3600 (1) and REASSERT_S = 0 (3).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015VXjA3LWccN1rJsk3okyPC
2026-08-30 15:52:09 +02:00
glenn schrooyenandClaude Opus 5 c040aac4b8 SAFETY-03: alarm when a computed setpoint exceeds the rating, do not just clip it
The clamp was never the missing half. specs.md 10.3 records an unclamped
integrator climbing ~130 W per 4 s past 10 kW and reporting 14 768 W pinned at
the 5 kW rail; clipped silently that is a flat, legal-looking 5000 W hold and
nothing says the loop asked for three times it.

write_setpoint() - the one path every write takes - now clamps to the VALIDATED
max_w and reports whether the raw value differed; check_output_clamp() raises
OUTPUT_CLAMP as a notification, an ERROR, an event row and a red status banner.
Not a trip: the clamped value is written and the loop keeps running.

The rating is max_w and nothing is min()ed at runtime - CFG-01 already refuses a
max_w outside the device range at startup. The device range is applied second as
defence in depth; it cannot bite after a successful validation, so if it ever
does it alarms too and names the bound. No new config key.

Decision grew i_clamped / clamped booleans, and that is the load-bearing part:
`reason` is one string that slew-limiting and the saturation freeze overwrite,
so an alarm keyed on it is silent on exactly the cycles a winding loop produces.
Mutating main.py back onto the string drops the 10.3 replay from 2 engagements
to 0.

Distinct from saturation by construction - no shared reason code, notification
id, status row or counter - and checked in the negative, after first asserting
the saturation freeze really did engage.

Two things found by running it rather than by reading it: a row per engagement
flushed the 40-row event log and evicted SAFETY-18's own METER FROZEN? row (now
coalesced per episode with an exact count), and a naive clamp turns a nan into a
command at the full rating because every comparison against nan is False.

test_clamp.py is new: assert-based, no framework. Six author mutations
reproduced red, including "clamp kept, alarm deleted". Two of the check's own
hypotheses about the freeze/clamp interaction were refused by its sweep and
rewritten to what it measured.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015VXjA3LWccN1rJsk3okyPC
2026-08-30 15:22:22 +02:00