UX-01's three unmet acceptance criteria, closed out. It shipped in 0.7.0 and is LIVE, so all three describe the running install. No behaviour, no schema and no default moves here: config.yaml, translations/ and every module under app/ are byte-identical to6e7b233. ⚠️ AC 3 - "the visible count drops to ~15" - IS WITHDRAWN AS UNSATISFIABLE, and the arithmetic is the reason rather than the effort. options: and schema: both declare all 71 keys, so the set HA's toggle can hide is EMPTY - it hides a key only when it is ?-optional AND absent from options:, and nothing is absent. But the deeper fact is that no manifest could have met it: Supervisor's own UiOptions marks 59 of the 71 REQUIRED, and the frontend's own filter - `schema.filter(e => e.name in opts || e.required)`, transcribed out of the bundle in the release image - shows a required field unconditionally. So 59 is the floor with options: EMPTIED ALTOGETHER. The target was ~4x below anything reachable. ⚠️ AND THE 12 HIDES THAT ARE EXPRESSIBLE WOULD BE BOUGHT WITH THE UPGRADE PATH. A key absent from options: has no default for the Supervisor to deep-merge into an existing box's stored blob. That is exactly the delivery_hold_s mechanism this release rests on: a REQUIRED key a 0.7.0 blob has never stored resolves to its options: default of 185 instead of becoming exit 78. Hiding a key is precisely the edit that removes that. It would also promote the 27 unpinned in-code literal fallbacks the new check ledgers into the ACTUAL source of the defaults on a live install - the CFG-03 defect the same card's AC 4 exists to police, made load-bearing by its AC 3. ⚠️ THE COUNT WAS PRINTED AND NEVER GRADED, WHICH IS HOW THIS PASSED REVIEW. supervisor_shape_probe.py section F has printed "the Configuration tab renders 71 fields" since the day it was written and exited 0 through UX-01's whole review while displaying the number that contradicted the criterion it was evidence for. Three assertions replace the bare print, every number computed from the manifest and from Supervisor's own `required` flag rather than typed, including an ISOLATED COUNTERFACTUAL that empties options: and nothing else. MEASURED RED: delete one key (price_feed_url) from options: and two of them fail - `Hideable: ['price_feed_url']`, `70 of 71 fields render` - exit 1. --- AC 4: the AST check, built -------------------------------------------- AC 4's first clause is VACUOUS over an empty set (see above) and its second - "the table changed goes red" - already works six times over. The third, the one with the content, was never written: the only literal scan in the repository is test_validate.py's regex over eight maintenance_* keys, which is a grep and predates the card. test_defaults_pin.py walks ast.Call nodes over app/*.py. It: - DISCOVERS the six *_OPTION_DEFAULTS mirrors from the tree rather than naming them. Every existing pin names its own table by hand, so a SEVENTH table added tomorrow is pinned by nobody and nothing says so; - grades all 30 mirrored keys against config.yaml, and requires that no module carries a literal fallback for any of them; - FREEZES the CFG-03 backlog at exactly today's 27 (module, key) pairs, by pair and not by count - a count goes green again the moment one site is deleted and another added. Line numbers are deliberately out of the key: a ledger that reddens on an unrelated reformat is one people re-bless without reading. It can only shrink; - grades every remaining literal AGAINST config.yaml, which is the half that catches CFG-04's actual failure - two copies of one number, one moves. ⭐ ONE PREVIOUSLY UNREPORTED DIVERGENCE, and it is what that last check is for: main.py:290 answers a missing target_grid_w with 0 where config.yaml ships -10. It cannot reach an operator - the deep-merge guarantees the key is present - and the only paths that hand over a partial dict are sim/inject.py and this repo's fixtures. Recorded as the single permitted divergence with its reason rather than corrected; changing it alters the control loop's target and belongs to a card that grades the loop. A second divergence goes red. ⭐ THE RED DIRECTION WAS RUN, TWICE OVER. Part 5 feeds the scanner a synthetic module containing a deliberate violation of each rule and REQUIRES it to be caught, in-process, through the same function the graded parts call - so a scanner that goes blind stops working there too - and the site total is graded against a floor. And a literal was planted in the REAL tree: main.py:290 float(opts.get("maintenance_charge_w", 2000)) -> FAIL no literal fallback survives for any of the 30 keys a mirror already answers for exit 1 main.py:290 opts.get("p1_host", "x"), opts.get("slew_w", 999) -> FAIL no NEW module/key pair has started carrying a literal fallback [('main.py', 'p1_host')] FAIL every remaining literal still AGREES with config.yaml main.py slew_w: code 999 vs config.yaml 0 exit 1 Both plants removed. --- AC 5: CFG-04 is closed, and not by this card's predecessor -------------fef6ef2touched config.yaml, translations/, test_translations.py and the probe - no defaults code at all - and on 0.7.0 the max_w 2000 -> 2500 triple mutation survives 21 files, 0 RED. CONFIRMED CLOSED on release/1.0 by re-running the same triple mutation on a throwaway copy of6e7b233: 26 files, RED at test_selfconfig.py, exit 1 - 1 FAILED: ⚠️ CLEARING max_w ON THE LIVE SHAPE IS REFUSED - rule 10 catches the rail collapsing to the 2000 default under an explicit 400 W slew git log -L 310,325:test_selfconfig.py attributes that check tobcee235, "UX-02: pin both halves of the max_w fix, because neither was graded". The AC is met BY UX-02 and ships with the pending 0.9.0 deploy. Nothing was re-done. --- the 8 per-entry translations: they stay -------------------------------- Measured negative and not a defect in them: UiOptions gives inverters type schema WITH multiple, the frontend sends that case to ha-selector-object, which labels fields `fields[name].label || name`, and the converter sets neither label nor translation_key. The Supervisor tab CANNOT be made to render them. They stay because UX-02's ingress panel is the surface that can, because they cost nothing, and because deleting them removes the only thing that would catch a per-entry key added without a translation - which is how SAFETY-32's REQUIRED bms_soc_floor would have joined the roster unlabelled. A written decision, not a change; translations/ is untouched. tools/supervisor_selfapi_probe.py stays red on its hardcoded len(_sub) == 7. That is TOOL-04, already filed, and it is not re-filed or fixed here. --- evidence --------------------------------------------------------------- positive control test_defaults_pin.py's mirror floor moved 6 -> 7 inside the harness container: "### RED: test_defaults_pin.py", exit 1 suite 27 files, ALL GREEN, exit 0 (goodwe-addon-checks:1, the checkout mounted read-only) shape probe all cases passed, exit 0, on ghcr.io/home-assistant/amd64-hassio-supervisor:2026.08.0 Nothing here touched hardware, the live Home Assistant at 192.168.2.158, or sim/. Both probe runs were throwaway containers over a read-only mount. DECISIONS/UX-04-the-configuration-tab-and-the-defaults-pin.md carries all four decisions, the frontend transcription, and the two counterfactual transcripts. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01BwRLw7eKYj2byVdwB6kbjU
GoodWe RS485 Controller — Home Assistant add-on repository
Replaces a GoodWe battery inverter's vendor controller with a local one: holds net grid exchange at zero by emulating the inverter's smart meter over RS485, and runs the monthly battery maintenance cycle the vendor box was doing.
repository.yaml add-on repository metadata
goodwe_controller/ the add-on
config.yaml manifest + options schema (the per-site config form)
app/ the controller
control.py the control law — pure functions, no I/O
maintenance.py the monthly cycle state machine
hass.py Supervisor/Core API access
store.py persistent state in /data
mqtt.py optional status entities
web.py ingress UI — routes only, status and configuration
config_page.py the configuration page's markup, style and script
configui.py its field model, built from the Supervisor's own
schema + translations — owns no key, label or rule
selfconfig.py reading and writing this add-on's own options,
with the validate-first / compare-and-swap gate
main.py orchestration, heartbeat, failsafe behaviour
test_control.py runnable checks — no framework needed
test_maintenance.py runnable checks — walks a full cycle in fake time
DOCS.md the add-on's documentation tab
MUTATION.md how to run a mutation so the result means something
tools/mutation_run.sh the mutation harness - purges bytecode, then grades
tools/supervisor_selfapi_probe.py what the Supervisor really permits and
returns, run against its own release image
firmware/goodwe-master.yaml ESPHome config for the T-CAN485
estop/rs485_log.py optional RS485 e-stop / bus witness
docs/GoodWe-RS485-Field-Guide.pdf the guide techs carry (10pp, A4)
docs/build_guide.py its single source - rebuilds the HTML and PDF
FIELD-GUIDE.md how to edit and rebuild the guide
Picking this up after a break? Read HANDOVER.md first — current state,
what is known broken, and what to do next.
Install
Settings → Add-ons → Add-on store → ⋮ → Repositories → add
https://gittea.kammenstraatha.duckdns.org/admin/goodwe-addon
then install GoodWe RS485 Controller.
⚠️ The repository must be PUBLIC for this to work. Home Assistant clones it
anonymously; against a private repo the store shows nothing and gives no useful
error. If it must stay private, install locally instead: copy
goodwe_controller/ into the machine's /addons/ folder, then
ha store reload — it appears as a Local add-on.
⚠️ Bump version: in goodwe_controller/config.yaml for every change.
Supervisor keys the built image by that version, so without a bump it silently
reuses the old image and your fix appears not to work — on your bench and on
every client's machine.
Requires Home Assistant OS or Supervised. Add-ons cannot be installed on HA Container or Core.
Read this first
The inverter holds its last command forever. It has no meter-timeout of its own — a controller that dies mid-command leaves the battery running until a human intervenes. Measured on real hardware: 5 kW of discharge held for 113 seconds after a controller went silent.
Three layers exist because of that, and only the third covers the Home Assistant machine itself dying:
- ESP32 watchdog — no fresh setpoint for ~30 s → command 0 W, and keep commanding it.
- Wind-down before firmware updates — 0 W written before the update starts.
- RS485 e-stop (optional) — writes 0 W after 30 s of total bus silence.
Sites sold without the e-stop must have the acknowledgement in FIELD-GUIDE.md
§10 signed.
Development
The control law and the maintenance machine are pure Python with no Home Assistant imports, so they run anywhere:
cd goodwe_controller
python3 test_control.py
python3 test_maintenance.py
Both must pass before shipping any change. To prove a check bites - the way
almost every claim in this repository was established - mutate the module and
run tools/mutation_run.sh, which clears __pycache__ first. It is not
optional: a same-size edit reverted inside one second leaves CPython reusing the
old bytecode, and the run grades code that is not there. goodwe_controller/MUTATION.md
has the mechanism, the measurement, and what the flags do not do. They are not unit-test theatre —
each assertion corresponds to a rule whose absence produced an observed failure
on real hardware, and the comments in control.py say which.
Compatibility
Check the serial number, not the model name. Characters 6-8 of the serial are the platform tag:
| tag | platform | verdict |
|---|---|---|
ESU EMU ESA BPS BPU EMJ IJL |
105 — ES/EM/BP, AA55-era meter bus | supported |
SPB SPN |
745 — SBP G2 (GW…-SBP-20) |
no |
ESN ESC |
745 — ES G2 (GW…-ES-20) |
no |
ETU EHU BTU … |
205/745/753 — ET/EH/BT hybrids | no |
SDT DST MSU NSU … |
PV-only inverters — no battery to control | no |
A "-20" or "G2" suffix means a different platform with a different meter
protocol. The tags come from the goodwe library's PLATFORM_105_MODELS, which
is also what Home Assistant's own integration uses to pick a protocol.
- GoodWe ES / BP family inverters (AA55 / RS485 meter-bus generation)
- The protocol is reverse-engineered. There is no vendor contract, and a firmware change on GoodWe's side could break every installation at once. Say so when you sell it.