03ef61fa3bdb755796936234d5bd23091b12df9d
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03ef61fa3b |
SAFETY-48: the slew step ceiling reaches the integrator, and what it bounds is the LEAD
`compute()` freezes the integrator with an asymmetric rule and the comment beside it states the requirement outright - "the requirement is that the INTEGRATOR stop accumulating, not only the command" - but `frozen` is computed from ONE signal, `abs(prev_w - actual_w) > saturation_w`, and slew-limiting never enters it. The integrator moves `gain * error` a cycle and the command moves at most `slew_w`, so the integrator outruns the command whenever `|error| > slew_w / gain`: 667 W at the live shape, against a measured median grid error of 1114 W at the onset of a recorded episode. SAFETY-39's retune made it MORE frequent, not less - a smaller step is a lower threshold. ⚠️ THE FORM THE CARD ASKED FOR RAISES THE BILLED QUANTITY, WHICH IS WHY IT IS NOT WHAT SHIPPED. Reusing the asymmetric freeze on a carried slew flag was built from release/1.0's own source and measured over 16.00 days / 256 252 meter instants of the live install's recorder: export 39.61 -> 34.43 kWh, and the worst quarter-hour average OFFTAKE 3739 -> 3935 W with the mean quarter +2.73 W, in five of six plant and tuning variants. A frozen integrator stops at `prev + gain*error`, which undershoots by (1 - gain); for an export that is free and for an import it is offtake, for as long as the ramp lasts. The card said "do not invent a second rule"; the measurement says to, and both sentences are recorded. WHAT SHIPS BOUNDS THE LEAD AT ONE SLEW STEP, inside the branch where the slew actually bound. Same 16 days, same ticks, same disturbance, same plant, same seed: export 39.61 -> 34.07 kWh, wasted throughput 4.67 -> 3.19 kWh, battery sign reversals 2992 -> 2770, median recovery 232 -> 199 s, p99 849 -> 850 s, max 901 -> 898 s, unrecovered 53 -> 31, worst |i_w - prev_w| 9200 -> 800 W - and the worst 15-minute average offtake 3739 -> 3434 W, i.e. the billed quantity IMPROVES. `i_w = slewed` (a cap of zero) is better again at 32.02 kWh and is refused: it is the velocity form this module's docstring says `i_w=None` collapses to. TWO COMMITTED NUMBERS MOVED, DELIBERATELY, WITH THE REASON BESIDE THEM. SAFETY-13's released command settles at -800 W and -1200 W where release/1.0 settled at -1190 W and -2390 W, because there is less wound integrator to settle onto; AC 4's property - it stops at the frozen integrator, not the rail - is what is asserted and the second is now graded against `i_w` rather than a literal. And SAFETY-39's "the slew does not own the over-absorption" is now FALSE - INVERTED, on the independent first-order plant test_control.py writes itself: 1005/1109/1285/1330 W rising with a slower slew becomes 729/550/424/326 falling. Two plant models that share nothing agree on the sign. Evidence: `tools/replay_recorded_loop.py` plus the read-only capture it made (scenarios/loop-2026-09-02_2026-09-17). The "before" law is the shipped file with the block removed by a named substitution - never a transcription - and a missing anchor is a REFUSAL carrying "NOTHING HAS BEEN MEASURED". The instrument prints its own fidelity first: it reproduces 39.6 kWh of export where the install exported 29.4, i.e. it is ~35 % pessimistic about the loop's tracking, so only the delta is claimed. 30/30 suites green, including test_control.py's exhaustive i_w=None equivalence sweep against the transcribed release/1.0 law, untouched: the cap moves `i_w` and not `target`, and that sweep compares (target_w, sat_count, frozen, reason). Six law mutations, one instrument battery. L4 - the cap applied unconditionally, -92 B - was a SURVIVOR of all thirty files: it is bit-identical on the shipped configuration (0 of 256 246 ticks) and separable on 2050 of 257 400 swept states, all at `integrator_max_w` above `max_w`, which part 4 now drives. L5 and L6 are ZERO BYTES. AND TWO COMMENTS IN THIS CARD WERE INVENTED AND ARE CORRECTED IN PLACE. The one-sided spelling was justified by a two-sided form that would "drag a trailing integrator" - it does not, and the two agree on 205 920 of 205 920 swept states; and a "118 of 256 252 ticks" figure had been measured against a different pair. MUTATION.md gains habits 21 and 22 for both shapes. NOT DEPLOYED, NOT VERSIONED. The live install still runs release/1.0's law. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01BwRLw7eKYj2byVdwB6kbjU |
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b6c6da31d8 |
TEL-10: two sentences that named assertions this file does not make
checks / unit (pull_request) Successful in 7m57s
Both are review findings on the merged-in-spirit branch, and neither is in executable code. R6 - test_mqtt.py part 1's headline said "every one of release/1.0's NINE messages is still byte-identical and still first". The assertion under it is `announce(...)[:len(BASELINE) - 1] == BASELINE[:-1]`, which covers EIGHT: the ninth, `goodwe_ctl/availability`, is byte-identical but deliberately moves to last, so a prefix comparison cannot include it. Nothing was unguarded - the `== SITE_NOW` on the next check pins it in its new position - but the sentence was not the check. Part 3 carried the same mis-statement two lines from a check that IS about all nine, and is corrected the same way. R5 - M7's red count was decoration. Re-driven in the CI image on a `cp -a` of the tree, purged, `:ro`, one file at a time, it is 10 reds in test_mqtt.py and not 8, on this tree and on SAFETY-48's alike. The direction was right; the number was inherited rather than re-measured, which is MUTATION.md's reporting rule 3. A note beside the table now says that a red count is a property of the SUITE as much as of the mutation and therefore has to name a tree. Verified: the full suite in the CI image, purged tree, `:ro` mount, one file at a time, exactly the command in .gitea/workflows/checks.yml - 30/30, exit 0. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01BwRLw7eKYj2byVdwB6kbjU |
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b548525d10 |
TEL-10: the loop's integrator stops being invisible
`self.i_w` has been a separate quantity from the command since SAFETY-04 and has left the process nowhere at all - no entity, no MQTT attribute, no log line. The investigation behind SAFETY-48 could only RECONSTRUCT it from the grid trace plus a replay; the reconstruction reproduced about a third of the engagements it was checked against and was discarded, so the card it was gathered for had to be argued from a measurement nobody could stand behind. It could not have been made to work either: `i_w` depends on every cycle before it, including the ones where the arbiter overrode the loop and `main.py` re-seeded `self.i_w = self.target`, and that re-seed is invisible in the grid trace. THREE SITE ROWS, APPENDED AFTER release/1.0's EIGHT. `loop_i` is `Decision.i_w` - the accumulator after the cycle, before the output clamp, the slew limit and quantisation. `loop_lead` is `decision.i_w - prev_w` against the command `compute()` was HANDED, which is not a subtraction of the other two published rows: `Setpoint` is the arbiter's output and is this cycle's, so on any cycle the arbiter overrode the loop the two differ - and that is exactly the cycle on which the integrator was re-seeded. `loop_reason` is `compute()`'s own word; the arbiter's `explain()` prints the winning claim's NAME and has never carried the claim's reason, so `slew-limited` appears in neither the `Why` row nor `Controller status`. Measured on the same cycle: arbiter `'loop -> -5000 W'`, loop `'i-clamped'`. NOTHING IN THE CONTROL PATH MOVED. `app/control.py` is not in this diff. `compute()`, its returned `Decision` and every constant it reads are identical to release/1.0, and all nine of release/1.0's retained discovery messages are byte-identical and still FIRST in the announcement. Evidence: 30/30 suites green in the CI image. Nine mutations, ONE survivor, reported as one: `decision.i_w - self.target` for the lead is +2 B and green because `cycle()` has not reassigned `self.target` at that line - the name is kept for the coupling, not for a behaviour it buys, and M2b (+8 B) is the mutation that does change the value and is red. AND TWO OF THIS CARD'S OWN CHECKS COULD NOT REACH THE FAILURE THEY NAMED. "the published integrator reaches its bound" was GREEN under the card's named mutation (publish `prev_w`, -3 B), because the command reaches the bound too - twelve cycles later. It asserts the LEAD TIME now and is red on 5. "a stopped controller publishes not-running" was GREEN under deleting that branch's assignments (-45 B, -67 B), because the fixture STARTED stopped and `__init__` writes the same values; it stops the controller part-way through a run that has already wound the integrator to -5000 W. Both are MUTATION.md habit 4, found by the battery rather than by review. No CHANGELOG section: `test_version_gate.py` 11b refuses a newest `## ` heading that is not config.yaml's `version:`, and opening one would mean taking a packaging decision this card does not get to take. The operator account is in DOCS.md and the release note belongs to the next PKG ticket. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01BwRLw7eKYj2byVdwB6kbjU |