chore: update coverage stats and badges - #6
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* fix(ai): combat correctness — attack planeswalkers, avoid commander trades, gate lifelink Three attack-declaration correctness fixes in combat_ai (reported in the #ai-suggestions channel). Attack declaration is decided directly by combat_ai, not the policy registry, so these are surgical heuristics there. - phase-rs#8 lifelink: gate the lifelink attack bonus on free_damage || favorable_trade || attacker_survives, so it can no longer justify a pure-loss chump block (CR 702.15b: life is still gained on a simultaneous trade, so even/surviving swings are unaffected — but throwing the creature away for nothing is not worth the life). - phase-rs#6 commander: don't trade the commander into a block it does not survive unless pushing lethal (CR 903.8 commander tax). Also excluded from the desperation alpha-strike fallback, computed before its cost/benefit math so a wide board cannot leak it back in. - phase-rs#5 planeswalkers: consume the engine's pre-computed valid_attack_targets to redirect the fewest large attackers (largest-power-first) needed to KILL the highest-loyalty opponent planeswalker, single-opponent path only; never dilutes a lethal/near-lethal swing and never empties the face. Multiplayer pods and Battle targets deferred. Plan reviewed to convergence via /review-plan (3 rounds, perf-verified: no per-node GameState clone, projection, or O(N^2) battlefield sweep). New tests drive the chooser through the real engine target list and are mutation-checked (reverting either subtle gate fails exactly its discriminating test). clippy + test-ai green. * fix(ai): penalize self-protection ACTIVATIONS with no threat (not just spells) Extend ReactiveSelfProtectionPolicy to fire on ActivateAbility, not only CastSpell. The AI repeatedly paid "discard a card: ~ gains protection from everything" until hand-empty, and activated Sylvan Safekeeper ("sacrifice a land: target creature you control gains shroud") on turn 1 for nothing — the same class as casting Teferi's Protection into an empty board, which the policy already handled for spells. - decision_kinds() now includes ActivateAbility; the verdict guard accepts both CastSpell and ActivateAbility. - Classifier extension (required): a GenericEffect static scoped to ParentTarget grants to whatever the parent ability targets, so self-scoping is decided by the enclosing GenericEffect.target — this covers the "target creature you control gains <defensive keyword>" class (Sylvan Safekeeper). The discard-cost "~ gains X" class already lowered to SelfRef and was caught. - Reuses is_self_protection_effect + any_immediate_threat unchanged; the expensive threat check stays gated behind the cheap classifier, so there is no per-candidate cost for non-protection activations. Plan reviewed to convergence via /review-plan (caught that Sylvan Safekeeper's grant is ParentTarget-scoped, which the classifier would have silently missed). Two discriminating tests (SelfRef + ParentTarget shapes) drive the verdict with a real ActivateAbility candidate and are mutation-checked. clippy + test-ai green. * feat(ai): PlaneswalkerLoyaltyPolicy — use the planeswalker, don't sac it for a trick New tactical policy on ActivateAbility for planeswalker loyalty abilities (reported in #ai-suggestions): the AI didn't use a loyalty ability the turn a walker landed (#4d), and fired value-negative minuses that sacrificed the walker for a single-target combat trick instead of the value plus (#4e, Quintorius "-4: target creature gains double strike"). Blunder-only design: the ONLY penalized case is sacrificing/crippling the planeswalker (left at <=1 loyalty) for a single-target combat trick; every other loyalty activation — plus abilities, removal, emblems/ultimates, tokens, draw, mass effects, steal, reanimation — earns a modest "use your planeswalker" bonus. This avoids classifying effect value (which would misclassify the 76 CreateEmblem ultimates as low-value and suppress them); by penalizing only the combat-trick-sacrifice shape, ultimates and removal are structurally never penalized. #4d falls out because using a walker beats passing; #4e is the penalty branch. is_combat_trick = Effect::Pump gated on effect_polarity == Beneficial (excludes negative-pump removal like Davriel's -3/-3), OR a GenericEffect granting only beneficial keyword/+P/+T mods to the single targeted creature (affected == ParentTarget, distinguishing it from a Typed{You} team anthem). Reuses effect_polarity (FreeOutletActivation precedent). CR 606.1. Plan reviewed to convergence via /review-plan (3 rounds — caught that effect_profile misses 76 emblem-ultimates, and that an unconditional Pump arm would penalize negative-pump removal). 9 tests drive the verdict with a real ActivateAbility candidate, incl. BLOCKER regression guards for emblem-ultimate and negative-pump removal; the negative-pump guard is mutation-checked. clippy + test-ai green. * feat(ai): EquipmentPriorityPolicy — stop the every-turn equip shuffle New tactical policy on ActivateAbility (reported in #ai-suggestions): the AI spent all its remaining mana every turn moving an Equipment between creatures for no board improvement. The AI reaches equip via ActivateAbility on the equip ability (effect Effect::Attach), where mana is committed and PassPriority is a sibling candidate — so the policy fires there and penalizes the activation when the equipment is already on the best body, making the AI keep its mana. - Unattached equip and genuine upgrades are neutral (0.0); the policy never rewards equipping (the problem is over-equipping). Only a re-equip with no bigger body to move to is penalized. - "Bigger body" compares base_power, NOT live power: the host's live power already includes this equipment's own +P buff (folded in via attached_to by the layer system), so comparing live power would make the equipped host out-power every bare upgrade target and wrongly penalize legitimate moves. base_power is the printed-baseline proxy, consistent on both sides. Guard: source has subtype "Equipment" + ability effect is Effect::Attach (CR 301.5: Equipment hosts are creatures). Performance: gated behind that cheap guard, then one own-creature base-power scan; no clone/projection. Plan reviewed to convergence via /review-plan (caught that live `power` includes the equipment's own buff, which would suppress every upgrade). The equip_upgrade_allowed test is built on a buffed host (live 4, base 2) with a base-3 target, so it fails under live-power and passes only under base_power — self-discriminating. clippy + test-ai green. * feat(ai): LandSequencingPolicy — play a normal land before a Karoo bounce-land New tactical policy on PlayLand (reported in #ai-suggestions "AI Cast & Bounce lands"): the AI played a Karoo bounce-land (Simic Growth Chamber) first when it should play a different land first, losing tempo. PlayLand was declared in BoardDevelopmentPolicy.decision_kinds() but never scored, so land choice was softmax noise; this fills the gap for the bounce-land case. When the land being played is a self-bouncing land AND a non-bouncing land is also in hand, deprioritize the bounce-land (-1.5) so the non-bounce land wins the argmax and is played first. When the bounce-land is the only land in hand, no penalty — it plays normally. The deferral is recoverable (within-turn reorder only). Detection is structural (no card names): an ETB trigger (ChangesZone, destination Battlefield, valid_card SelfRef) whose execute chain bounces a Land you control (controller == You). Reuses ability_chain::collect_chain_effects. This matches the whole Ravnica/MOM Effect::Bounce bounce-land cycle; the Mercadian Karoo/Coral Atoll sacrifice-self cycle (Effect::Sacrifice) has no sequencing downside and is deliberately not matched. Deferred (#4b, separate SelectTarget decision, documented): when the bounce ETB returns "a land you control," the AI should pick the least-useful land, not the just-played bounce-land — needs its own target-selection policy. Plan reviewed to convergence via /review-plan (confirmed trigger_definitions are populated on hand objects, so detection fires at the PlayLand step; corrected a false coverage claim and tightened the target to controller==You). Tests drive a real PlayLand candidate; the SGC-detected penalty test plus the non-bounce-ETB na test together discriminate the structural matcher. clippy + test-ai green. * fix(engine): smarter auto-tap source order — colorless-for-generic, spare creatures The auto-tap planner's card_tier sort axis ignored two cheap, in-payment signals, so it would drain a dual land's colored capacity to pay a generic cost (when a painland's free {C} row was available) and tap a creature mana dork when a non-creature rock could pay the same shard. Refine the card_tier middle key of auto_tap_mana_sources_inner's sort closure into a 6-tier ladder (penalty axis unchanged): 0 free-colorless land row (ideal generic filler — commits no colored production a later shard in this same payment needs) 1 other land row 2 non-land non-creature mana source (rock / Signet) 3 non-land creature mana dork — CR 509.1a: keep would-be blockers untapped 4 land-creature (animated manland) — CR 509.1a 5 deprioritized own-source The colorless-row signal is read per-row off the existing ManaSourceOption fields (atomic_combination + mana_type), not the per-object flexibility flag (which is stamped identically on every row and can't tell a painland's {C} row from its colored rows). O(1) per source, no hand lookahead — safe in the AI cost-projection hot loop. Two discriminating tests (mutation-checked: both fail on the old 4-tier ladder): auto_tap_uses_colorless_row_for_generic_preserving_dual ({1}{G}) and auto_tap_prefers_rock_over_creature_dork ({G}). Reported via Discord #ai-suggestions ("Auto Cast Mana Selections"). * feat(ai): don't pay for activations whose payoff is gated off (ConditionGatedActivation) The AI activated hideaway payoff abilities (e.g. Mosswort Bridge's "{G},{T}: play the exiled card if your creatures' total power is 10 or greater") every turn even far under the threshold, burning mana for an effect that does nothing. The engine is rules-correct here — per CR 602.5 / the Shelldock Isle ruling the ability is legal to activate regardless; only the CastFromZone effect is gated at resolution (CR 608.2c) — so this is purely an AI-value miss. New ConditionGatedActivationPolicy (DecisionKind::ActivateAbility): when an activated ability with a cost has a top-level intervening-if condition that is currently false, apply a soft penalty so PassPriority (or a better line) wins. Generalizes to the whole "Cost: do X if [board condition]" class — every hideaway land and beyond, not one card. Soft (not Reject) because an ability's cost can change the very thing its condition checks (sacrifice-then-"if you control no creatures"); the condition is read pre-cost. Condition evaluation is delegated to a new public engine helper `ability_condition_currently_met`, which wraps `effects::evaluate_condition` behind a conservative allowlist: it judges only board/controller-relative QuantityCheck conditions and returns None for anything needing resolution-time context (chosen targets, cast/trigger event), so the policy never guesses. Tests: engine helper unit test (board-relative Some(false)/Some(true), no-condition None, target-relative None) + 5 policy tests. Discriminating via unique reason-kind sentinels. Reported via Discord #ai-suggestions ("Mosswort Bridge"). * fix(engine): make Omo's everything counter grant all land/creature types Omo, Queen of Vesuva placed an "everything counter" that did nothing: the two type-granting static abilities silently mis-parsed, and the trigger only targeted a land (the "and up to one target creature" half became Unimplemented). Three fixes: - Trigger: parse "put a counter on each of up to one target A and up to one target B" as two PutCounter siblings, each with its own optional target. Also recover the PRIMARY clause's "up to one" cardinality, which try_parse_verb_and_target dropped when lowering to ZoneCounterProxy — a latent bug across the whole compound-PutCounter class, not just Omo. - Land static: "is every land type" now lowers to a new ContinuousModification::AddAllLandTypes (all 17 land subtypes per CR 205.3i), not the no-op AddType{Land} it produced before. The new Layer-4 marker iterates the canonical card_type::LAND_SUBTYPES; basic types among them grant mana abilities automatically via the existing intrinsic-mana pass (CR 305.7). Distinct from AddAllBasicLandTypes (CR 305.6, 5 basic types). - Creature static: "each nonland creature with an everything counter on it is every creature type" now parses (counter-conditioned subject built from the existing TypeFilter::Non(Land) + parse_counter_suffix) and maps to the existing AddAllCreatureTypes. Tests: parser units (both statics + the two-target trigger), a layer test (counter -> all types; mutation-checked that no-counter objects gain nothing), and a full-pipeline integration test (Omo enters -> resolve trigger -> select land + creature -> assert all land/creature types via the layer system). Reported via Discord #ai-suggestions ("AI Cast & Bounce lands" / Omo). * feat(ai): draft bots value and play nonbasic fixing lands Draftbots never picked or played nonbasic fixing lands: evaluate_draft_card zeroed every non-creature land, and the deck-builder filled the manabase with basics only, ignoring drafted duals. - Pick value: a nonbasic land that taps for 2+ colors now scores `fixing_land` (~card-draw value — above filler, below playables/removal), so bots take duals mid-pack instead of wheeling them. Mono/colorless lands stay at 0. - Deck build: suggest_deck now admits on-color drafted fixing lands into the manabase, each replacing one basic so the 40-card total never drifts. Gated to the standard-basics fill policy (a custom addable policy supplies its own lands) and to drafted copies the player actually owns. New shared `mana_colors::land_produced_color_types` (parts-based core over subtypes + abilities) is the single "what colors does this land make" signal for both the pick value and the manabase, unioning intrinsic basic-land-type mana with Effect::Mana abilities (incl. filter-land ChoiceAmongCombinations). Dedups the mulligan keepables' private copy of the same logic. Tests: draft_eval (subtype dual, ability dual, mono, colorless-only) and suggest (on-color admitted, off-color rejected, total conserved, no-db noop). Reported via Discord #ai-suggestions ("Nonbasic Lands in Draft"). * fix(test): type-correct optional-target check after MultiTargetSpec.min became QuantityExpr MultiTargetSpec.min was parameterized from i32 to QuantityExpr on main (CR 115.1d up-to-N targeting). The Omo dual-target parser test compared s.min == 0 against the old integer type, which no longer compiles against the new QuantityExpr min (E0308). Use a variant match for the Fixed(0) case, matching how the rest of the engine constructs/handles QuantityExpr.
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…-rs#4886) Addresses review phase-rs#6 on PR phase-rs#4938: - is_token_replacement_choice only scanned a ChooseOneOf's branches for token creation, missing a token created by a sub_ability tail chained after the whole choice resolves. Reuse the existing recursive ability_tree_creates_tokens classifier (which already walks sub_ability/else_ability) instead of a narrower branches-only check. - The elimination teardown path abandoned a live post-replacement continuation without clearing post_replacement_token_choice_applied, the one field missing from its established sibling-clearing bundle. Extract that bundle into a single abandon_post_replacement_continuation helper so a future field can't be missed the same way again. Both fixes are pinned by discriminating regression tests (verified to fail without their corresponding fix, pass with it).
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…4886) (phase-rs#4938) * fix(engine): stop Jinnie Fay token replacements from looping (phase-rs#4886) * Fix nested token replacement continuation * fix(engine): scope token-choice applied seed to its originating ChooseOneOf (phase-rs#4886) Address [HIGH] review finding on phase-rs#4938: the inherited replacement-applied seed could still be dropped across an intervening nested replacement choice inside the paused branch chain. Root cause: the seed lived as a single transient GameState field cleared at TWO sites that cannot distinguish an outer (originating) token-choice drain from a nested replacement's drain: - continue_replacement_impl's `_ => None` arm wiped it for every non-token-choice nested replacement (replacement.rs) - apply_pending_post_replacement_effect cleared it whenever waiting_for was not ChooseOneOfBranch (engine_replacement.rs) So a Jinnie branch that created a token, paused on another optional ReplacementChoice, then resumed a later token sub-ability lost the originating replacement id and re-prompted the same Jinnie replacement — the exact loop this is trying to prevent. Fix: make the seed OWNED by the originating token-choice ChooseOneOf continuation. Seed it only when a CreateToken event is replaced by a token-choice continuation; preserve it across all other replacement activity; clear it only when that originating ChooseOneOf fully drains back to priority (effects/choose_one_of.rs). Remove both clobbering sites. Document the ownership on the field. cargo fmt, cargo clippy -p engine --all-targets -- -D warnings, and the full engine lib suite (14679 tests) pass. New regression pins the invariant: a pre-seeded applied set survives an intervening non-token-choice continuation drain. * fix(engine): clear token-choice seed at full-drain, not ChooseOneOf completion (phase-rs#4886) Address [HIGH] review finding phase-rs#3 on phase-rs#4938: the seed could still be cleared by an intervening nested choice before a later token sub-ability drained. Root cause: choose_one_of.rs cleared the global seed the moment its branch resolved back to priority. But a branch shaped `ChooseOneOf(non-token) -> sub_ability Token` stashes the token sub-ability into pending_continuation (effects/mod.rs), which the ChooseBranch handler drains only afterward (engine_resolution_choices.rs::drain_pending_continuation). Clearing at ChooseOneOf completion wiped the seed in the gap between the nested choice resolving and the stashed token sub-ability proposing, so the later token lost the inherited replacement id and re-prompted the same Jinnie replacement — the loop, reached via a non-token ChooseOneOf instead of a ReplacementChoice. Fix (per review's 'or otherwise clear only after that frame and its stashed continuation have drained'): remove the choose_one_of.rs clear entirely; clear the seed at the true full-drain point in drain_pending_continuation — Priority + no pending_continuation + no pending_repeat_iteration. By then the originating token-choice frame and every stashed sub-ability have completed, so no token proposal can still need the seed. cargo fmt, cargo clippy -p engine --all-targets -- -D warnings, and the full engine lib suite (14828 tests) pass. New regression pins the exact shape: a Jinnie branch that parks on a non-token ChooseOneOf before a token sub-ability. * fix(engine): clear token-choice seed after repeat-until drains (phase-rs#4886) Address [MED] review finding phase-rs#4 on phase-rs#4938: the seed could still be cleared before a paused repeat-this-process continuation re-entered and emitted later token proposals. Root cause: drain_pending_continuation cleared post_replacement_token_choice_applied BEFORE calling drain_pending_repeat_until; that drain re-enters resolve_ability_chain (effects/mod.rs:721 / :744) and can propose further tokens, which then lost the inherited replacement id and re-prompted the same Jinnie replacement — the loop, reached via a repeat-until pause. Fix: treat pending_repeat_until as part of the originating continuation frame. Drain it first, then clear the seed only at true full-drain — Priority + no pending_continuation + no pending_repeat_iteration + no pending_repeat_until. The seed now outlives every drain in the function. cargo fmt, cargo clippy -p engine --all-targets -- -D warnings, and the full engine lib suite (14873 tests) pass. New regression pins the invariant: a pre-seeded applied set survives a pending_repeat_until drain that re-prompts the controller. * fix(engine): close two more token-choice replacement seed gaps (phase-rs#4886) Addresses review phase-rs#6 on PR phase-rs#4938: - is_token_replacement_choice only scanned a ChooseOneOf's branches for token creation, missing a token created by a sub_ability tail chained after the whole choice resolves. Reuse the existing recursive ability_tree_creates_tokens classifier (which already walks sub_ability/else_ability) instead of a narrower branches-only check. - The elimination teardown path abandoned a live post-replacement continuation without clearing post_replacement_token_choice_applied, the one field missing from its established sibling-clearing bundle. Extract that bundle into a single abandon_post_replacement_continuation helper so a future field can't be missed the same way again. Both fixes are pinned by discriminating regression tests (verified to fail without their corresponding fix, pass with it). --------- Co-authored-by: Matt Evans <1388610+matthewevans@users.noreply.github.com>
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… loop-cover predicate
Cover the infinite charge-counter-growth proliferate loop (Pentad Prism +
Kilo/Freed/Relic) and offer the CR 732.2a resource shortcut. New sibling predicate
`loop_states_cover_modulo_counter_growth` (analysis/resource.rs): strict-growth-only
over the PRESERVED `Generic` object-counter axis, fail-closed.
- `CounterGrowthDisposition {StrictGrowth, Stable, Consumed}` (typed, not bool).
`classify_generic_counter_growth` is a wildcard-free `CounterType` match — the
per-type classification table itself (a new variant won't compile until
classified), kept in lockstep with `is_monotone_loop_resource`. `Consumed` (any
`Generic` counter fell) takes precedence over `StrictGrowth` (mixed grow+consume
rejects) — the infinite-consume soundness trap.
- `equalize_generic_counters` overwrites only `Generic` counts with `prior`'s, then
rides the existing `loop_states_equal_modulo_resources`, so any non-`Generic`
drift still rejects via the untouched equality.
Wired at exactly two non-GameOver seams (the firewall): `detect_loop` gate-1
(offline `Advantage` certification) and `interactive_loop_bridge` Path-C (live
revocable-unbounded capability mark). Deliberately NOT wired into
`live_mandatory_loop_winner` (GameOver-capable) — a conservative fail-closed
boundary. A charge/burden growth loop classifies `WinKind::Advantage` (CR 104.4b:
an optional loop is not a draw), so an over-claim is a declinable offer / revocable
mark, never a wrongful game-end — the revocability soundness bound (the equalize
step introduces a new projected `Generic`-counter axis, sound by this bound, not by
firewall parity).
GENERAL over preserved-`Generic` growth: Pentad Prism (charge) and The One Ring
(burden) are the SAME cover, so One-Ring's growth cover is discharged here — its
later pass is offer-layer + card-verify only.
Two-path coverage (matches the existing architecture): the real proliferate loop is
offline-certified (`drive_offline_pentad_prism`, real Kilo/Freed/Relic + Pentad
seeded >=1 charge via Sunburst, CR 702.44a); the live Path-C disjunct is exercised
by a sampler-visible self-refilling charge-growth trigger — the live equality
sampler records only non-shrinking-stack cascades, and a `ProliferateChoice` beat
hits the pre-existing ring-clear arm.
8 discriminating tests (4 unit + phase-rs#5/phase-rs#8 offline + phase-rs#6/phase-rs#7 live), all non-vacuous: the
consume control (phase-rs#2) is a same-`Generic("charge")` decrease that flips only under a
direction-blind revert; phase-rs#8 asserts `Some(Advantage, Counter(Other,Other))`; phase-rs#6
marks the counter axis without any GameOver; phase-rs#7 proves phase-rs#4603-OFF byte-identity.
Verify: clippy -p engine --all-targets 0/0; analysis lib 173 + loop_shortcut 28 +
the 8 new tests green. Plan-reviewed + impl-reviewed clean.
Assisted-by: ClaudeCode:claude-opus-4.8
lgray
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… loop-cover predicate
Cover the infinite charge-counter-growth proliferate loop (Pentad Prism +
Kilo/Freed/Relic) and offer the CR 732.2a resource shortcut. New sibling predicate
`loop_states_cover_modulo_counter_growth` (analysis/resource.rs): strict-growth-only
over the PRESERVED `Generic` object-counter axis, fail-closed.
- `CounterGrowthDisposition {StrictGrowth, Stable, Consumed}` (typed, not bool).
`classify_generic_counter_growth` is a wildcard-free `CounterType` match — the
per-type classification table itself (a new variant won't compile until
classified), kept in lockstep with `is_monotone_loop_resource`. `Consumed` (any
`Generic` counter fell) takes precedence over `StrictGrowth` (mixed grow+consume
rejects) — the infinite-consume soundness trap.
- `equalize_generic_counters` overwrites only `Generic` counts with `prior`'s, then
rides the existing `loop_states_equal_modulo_resources`, so any non-`Generic`
drift still rejects via the untouched equality.
Wired at exactly two non-GameOver seams (the firewall): `detect_loop` gate-1
(offline `Advantage` certification) and `interactive_loop_bridge` Path-C (live
revocable-unbounded capability mark). Deliberately NOT wired into
`live_mandatory_loop_winner` (GameOver-capable) — a conservative fail-closed
boundary. A charge/burden growth loop classifies `WinKind::Advantage` (CR 104.4b:
an optional loop is not a draw), so an over-claim is a declinable offer / revocable
mark, never a wrongful game-end — the revocability soundness bound (the equalize
step introduces a new projected `Generic`-counter axis, sound by this bound, not by
firewall parity).
GENERAL over preserved-`Generic` growth: Pentad Prism (charge) and The One Ring
(burden) are the SAME cover, so One-Ring's growth cover is discharged here — its
later pass is offer-layer + card-verify only.
Two-path coverage (matches the existing architecture): the real proliferate loop is
offline-certified (`drive_offline_pentad_prism`, real Kilo/Freed/Relic + Pentad
seeded >=1 charge via Sunburst, CR 702.44a); the live Path-C disjunct is exercised
by a sampler-visible self-refilling charge-growth trigger — the live equality
sampler records only non-shrinking-stack cascades, and a `ProliferateChoice` beat
hits the pre-existing ring-clear arm.
8 discriminating tests (4 unit + phase-rs#5/phase-rs#8 offline + phase-rs#6/phase-rs#7 live), all non-vacuous: the
consume control (phase-rs#2) is a same-`Generic("charge")` decrease that flips only under a
direction-blind revert; phase-rs#8 asserts `Some(Advantage, Counter(Other,Other))`; phase-rs#6
marks the counter axis without any GameOver; phase-rs#7 proves phase-rs#4603-OFF byte-identity.
Verify: clippy -p engine --all-targets 0/0; analysis lib 173 + loop_shortcut 28 +
the 8 new tests green. Plan-reviewed + impl-reviewed clean.
Assisted-by: ClaudeCode:claude-opus-4.8
lgray
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… loop-cover predicate
Cover the infinite charge-counter-growth proliferate loop (Pentad Prism +
Kilo/Freed/Relic) and offer the CR 732.2a resource shortcut. New sibling predicate
`loop_states_cover_modulo_counter_growth` (analysis/resource.rs): strict-growth-only
over the PRESERVED `Generic` object-counter axis, fail-closed.
- `CounterGrowthDisposition {StrictGrowth, Stable, Consumed}` (typed, not bool).
`classify_generic_counter_growth` is a wildcard-free `CounterType` match — the
per-type classification table itself (a new variant won't compile until
classified), kept in lockstep with `is_monotone_loop_resource`. `Consumed` (any
`Generic` counter fell) takes precedence over `StrictGrowth` (mixed grow+consume
rejects) — the infinite-consume soundness trap.
- `equalize_generic_counters` overwrites only `Generic` counts with `prior`'s, then
rides the existing `loop_states_equal_modulo_resources`, so any non-`Generic`
drift still rejects via the untouched equality.
Wired at exactly two non-GameOver seams (the firewall): `detect_loop` gate-1
(offline `Advantage` certification) and `interactive_loop_bridge` Path-C (live
revocable-unbounded capability mark). Deliberately NOT wired into
`live_mandatory_loop_winner` (GameOver-capable) — a conservative fail-closed
boundary. A charge/burden growth loop classifies `WinKind::Advantage` (CR 104.4b:
an optional loop is not a draw), so an over-claim is a declinable offer / revocable
mark, never a wrongful game-end — the revocability soundness bound (the equalize
step introduces a new projected `Generic`-counter axis, sound by this bound, not by
firewall parity).
GENERAL over preserved-`Generic` growth: Pentad Prism (charge) and The One Ring
(burden) are the SAME cover, so One-Ring's growth cover is discharged here — its
later pass is offer-layer + card-verify only.
Two-path coverage (matches the existing architecture): the real proliferate loop is
offline-certified (`drive_offline_pentad_prism`, real Kilo/Freed/Relic + Pentad
seeded >=1 charge via Sunburst, CR 702.44a); the live Path-C disjunct is exercised
by a sampler-visible self-refilling charge-growth trigger — the live equality
sampler records only non-shrinking-stack cascades, and a `ProliferateChoice` beat
hits the pre-existing ring-clear arm.
8 discriminating tests (4 unit + phase-rs#5/phase-rs#8 offline + phase-rs#6/phase-rs#7 live), all non-vacuous: the
consume control (phase-rs#2) is a same-`Generic("charge")` decrease that flips only under a
direction-blind revert; phase-rs#8 asserts `Some(Advantage, Counter(Other,Other))`; phase-rs#6
marks the counter axis without any GameOver; phase-rs#7 proves phase-rs#4603-OFF byte-identity.
Verify: clippy -p engine --all-targets 0/0; analysis lib 173 + loop_shortcut 28 +
the 8 new tests green. Plan-reviewed + impl-reviewed clean.
Assisted-by: ClaudeCode:claude-opus-4.8
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Jul 12, 2026
…ow + combo-declaration UI (CR 732.2a–c) (#5672) * feat(engine): DecisionTemplate replay + residual board delta (PR-7 phase 1) Phase 1 (foundations) of combo-detector PR-7: pure/offline analysis-layer primitives, zero live engine wiring, no gate yet. B1: DecisionTemplate {owner, decisions, replay} + resolve() replay engine + predictability_gate() (CR 732.2a firewall). DecisionSource reuses YieldTarget (CR 117.3d provenance + CR 400.7 identity). ReplayFailure is selected per pin kind: absent Order source -> MissingSource (CR 400.7); illegal/absent target -> IllegalTarget (CR 608.2b). IterationCount::Fixed only; TargetSchedule = {Constant, RoundRobin, Piecewise}. B4: BoardDelta/ResidualPermanent (CR 110.1) + pure board_delta() producer + structurally-empty LoopCertificate.residual_board_delta. The field is empty by construction for every certificate detect_loop can currently produce (loop_states_equal_modulo_resources requires an identical battlefield); board_delta() is the single population seam that lights up once a future object-growth detection path relaxes that gate -- not a silent stub. Verification: cargo fmt; clippy --all-targets -D warnings (clean); cargo test -p engine (18543 passed, 0 failed); 12 discriminating inline unit tests. coverage/semantic-audit skipped -- PR-7 touches zero parser/card-data surface so they carry no signal; coverage runs once at final pre-push as a no-regression check. Deferred: DecisionGroupKey/DecisionKind/key + Ord-on-newtypes -> Phase 2/B2 (first consumer); IndexedClass schedule -> Phase 4/B3 (needs live FilterContext); non-empty residual materialization + board_delta output-order determinism -> object-growth detection phase. Assisted-by: ClaudeCode:claude-opus-4.8 * feat(engine): trigger-order resolver + intra-batch re-prompt fix (PR-7 phase 2) Phase 2 (B2) of combo-detector PR-7: one resolver at the begin_trigger_ordering auto-order gate, two tiers over a shared DecisionTemplate, plus the deferred B1 key apparatus. Ephemeral tier (CORRECTNESS FIX, CR 603.3b): a simultaneous trigger batch is ordered ONCE. Previously, when a targeted trigger paused for target selection, the already-ordered deferred tail lost its 'ordered' flag and drain_deferred_trigger_queue_unchecked re-prompted after every target. Now handle_order_triggers registers an ephemeral ThisObject-keyed coverage-only template; the gate's 3rd arm verifies sub-multiset coverage and keeps the tail's chosen order without re-prompting. Cleared at the batch resolution boundary. Persistent tier (UX): opt-in save/reapply keyed by AllCopies/oracle identity, via GameAction::SetTriggerOrderTemplate{Save,Remove,ClearAll} mirroring the merged session bypass + payload guard + manabrew-compat + per-viewer redaction). Permutes the fresh batch once, then registers an ephemeral marker so all parked-tail re-drains are coverage-only for both tiers. Frontend list deferred to phase 5. B1 key apparatus (deferred from phase 1, first consumer here): DecisionGroupKey/ DecisionKind + DecisionTemplate.key + Ord on ObjectId/CardId + decision_templates Vec on GameState with get/set/remove/clear accessors. Excluded from loop_fingerprint, kept in PartialEq (safe direction), per-viewer redacted in filter_state_for_viewer. Gate OFF byte-identical: empty decision_templates no-ops the 3rd arm; neither tier rides LoopDetectionMode. Verification: cargo fmt; clippy --all-targets -D warnings (clean); cargo test -p engine (18597 passed, 0 failed, post-rebase); 8 discriminating tests incl. the headline single-OrderTriggers-prompt on a paused multi-targeted batch. FORGE ordering_parity_sweep (full-DB, corpus regenerated at the rebased tip): B2's delta vs main is ZERO. The sweep's decision inputs -- profiles_conflict/ ability_rw_profile (ability_rw.rs), build_resolved_from_def (ability_utils.rs), and the allowlist (triggers_ordering_parity_tests.rs) -- are byte-identical to main and the full-DB path never calls the (unmodified-body) group_is_order_independent, so the run equals main's own full-DB result. It reports 20 PRE-EXISTING over-prompt divergences (the Urza's-era hidden/veiled/opal/lurking enchantment cycle) that predate this change; all are the safe auto->prompt direction (zero under-prompts => zero CR 603.3b violations). Default CI runs the fixture path (unexplained=0). These are a pre-existing full-DB-only allowlist gap, out of PR-7 scope, tracked as a follow-up. Assisted-by: ClaudeCode:claude-opus-4.8 * feat(engine): live loop-shortcut protocol + APNAP response window (PR-7 phase 3) Phase 3 (Part A) of combo-detector PR-7: at a CR 704.3 priority point an opt-in LoopDetectionMode::Interactive routes a confirmed live loop certificate through a shortcut-offer protocol instead of the pre-feature halt. Default (Off) and On stay byte-identical (samples() == is_on() at both live gates; the On reconcile arm is byte-verbatim inside the mode match). Bridge (interactive_loop_bridge): on a determinate lethal single-winner drain, mandatory loops auto-win (identical to the On path); optional loops OFFER WaitingFor::LoopShortcut to the determinate winner (CR 732.2a), then an APNAP WaitingFor::RespondToShortcut accept-or-shorten window over all living opponents (CR 732.2b/c) reusing the OpponentMayChoice remaining_players drain-one-advance fan-out. GameAction::DeclareShortcut{count,template} + RespondToShortcut{response} drive it. CR 732.4 all-mandatory net-progress no-loss loops end in a draw (CR 104.4b); any loss axis or optional loop falls through to the pre-feature halt. Multiplayer (>=3p APNAP) from the start. Winner authority: the crown is the sole non-faller from live_mandatory_loop_winner (nonfallers.len() == 1 requires every OTHER living player to fall, CR 104.2a), not the mechanical loop controller. Subset-lethal pods (an opponent survives) return None and never crown; a >=2-faller simultaneity floor requires equal per-cycle life deltas so all fallers cross lethal in one CR 704.3 SBA batch. Soundness (CR 608.2b): the offer latches the determinate winner; the dispatch firewall admits only DeclareShortcut/RespondToShortcut between offer and accept (a live ring re-scan is unsound -- intervening finalize/SBA/layer steps drift the paused state). Concede and Debug bypass that firewall, so apply_confirmed_shortcut re-validates the latched controller's liveness at consumption: CR 104.3a (a player who conceded has lost and cannot be crowned), CR 104.2a (the winner must still be in the game), CR 800.4a (the departed proposer's loop objects have left, so the loop dissolved). On a departed proposer it hands priority to the next LIVING player (is_alive(active_player) ? active_player : next_player_in_turn_order) rather than crowning a departed player or leaving priority on a departed holder; the APNAP remaining_players advance likewise filters out opponents who left mid-window. New serialized surface (LoopDetectionMode::Interactive, WaitingFor::LoopShortcut/ RespondToShortcut, GameAction::DeclareShortcut/RespondToShortcut, IterationCount::UntilLethal, ShortcutProposal/ShortcutResponse, LoopCertificate serde derives) is additive; Off/On configs serialize byte-identically. Frontend modal UI, smart-Shorten AI, and Fixed-count materialization are Phase 4/5 (the WaitingFor types are registered so UnhandledWaitingForModal does not fire; the AI answers RespondToShortcut with Accept and DeclareShortcut with UntilLethal via explicit non-wildcard arms). Verification: cargo fmt; clippy --all-targets -D warnings (clean); cargo test -p engine (18616 passed, 0 failed); loop_shortcut 10/10 -- On+Off byte-identity goldens, 3p APNAP cascade accept-win, CR 732.4 draw, Shorten priority window, authorization routing, and revert-failing guards: controller-concede-not-crowned, queued-opponent-concede-no-deadlock, and 3p-subset-lethal-no-crown. FORGE ordering_parity_sweep not run -- Phase 3 touches zero trigger-ordering surface; the three decision-input recipe files (ability_rw.rs, ability_utils.rs, triggers_ordering_parity_tests.rs) are byte-identical to the branch base and no parser/card-data is touched (delta=0 by construction). Independent review-impl clean after catching + fixing one soundness blocker (the Concede/Debug firewall bypass and its dead-priority remedy path). Assisted-by: ClaudeCode:claude-opus-4.8 * feat(engine): object-growth loop detection — offline detector (PR-7 phase 4a-core) Phase 4a-core of combo-detector PR-7: the OFFLINE object-growth loop detector — the object-axis analog of the existing stack-axis omega-coverability. Certifies (or fail-closed rejects) loops whose battlefield GROWS by inert tokens each iteration, which the strict board-equality gate + MAX_OBJECT_GROWTH ceiling could not detect. Offline only: no reducer/sampler/bridge change, so Off/On/Interactive runtime stays byte-identical to HEAD; the live empty-stack sampler (4a-live) is deferred until a certifiable live object-growth loop exists (plan ruling). Detector (analysis/resource.rs) loop_states_cover_modulo_object_growth reuses the Karp-Miller discipline on the object axis: - board_covers: absolute-ObjectId embed + inert-class confine; grown_ids = the battlefield after-before absolute-id set. - eq_except_growable: strip grown objects + clear battlefield/stack, then reuse the GameState PartialEq wholesale so EVERY non-object field strict-compares (incl. delayed_triggers / deferred_triggers / pending_trigger* / epic_effects accumulators) — the excepted set is derived, not hand-listed. - grown_objects_are_inert: no static/trigger/replacement/activated ability, non-CDA P/T, non-legendary/world, no counters (CR 704.5). Wired into the OFFLINE detect_loop classifier; the fail-loud residual_board_delta seam lights up on object growth. Fail-closed firewalls (CR 732.2a predictable-results; false-negative = grind-to-cap = today's behavior, false-positive is not acceptable): - Observation (fire_time_conditions_read_growing_class): scans the CONDITION and full EFFECT-BODY AST of every trigger/activated/static/TCE/granted-keyword ability on every battlefield object + the delayed/deferred/pending/epic store bodies, on the projected||sibling axis via the recursive scan_effect (opaque => CONSERVATIVE). - Cost (cost_surface_references_growing_class): ONE predicate over the whole cost surface — an EXHAUSTIVE no-`_` match over all 117 StaticMode variants (ModifyCost / ReduceAbilityCost dynamic_count for Reduce AND Raise; the AbilityCost-bearing Impose/Alternative/CastWith variants + the three cast-permission variants; CastWithKeyword) and an EXHAUSTIVE no-`_` match over all 198 Keyword variants (Affinity/Convoke/Improvise/Delve/Emerge/Offering/Bargain/Assist/Crew/Saddle/ Station/Teamwork/Conspire/Waterbend/Harmonize/Craft/Casualty reject on grown-class overlap; Undaunted is opponent-count SAFE), plus nested sub_ability/else_ability cost recursion. A per-creature cost INCREASE (ModifyCost Raise + ObjectCount) is the false-positive-infinite direction and rejects. Both matches are compile-break tripwires — a future StaticMode/Keyword variant cannot silently fail open. Totality guards: compile-time _gameobject_partition_is_total (all 136 GameObject fields) + _gamestate_partition_is_total (all 259 GameState fields), no `..`, so a future field is a build break until classified. objects_content_eq is extended with the 14 mutable per-object accumulators the hand-list had drifted behind (chosen_attributes / intensity / stickers / perpetual_mods / class_level / modal_back_face / goaded_by / detained_by / casting_permissions / saddled_by / ...), each classified by its write sites, not its doc-string. Stricter equality on the shared 2p CR 104.4b path is fail-safe (only suppresses a wrongful draw where an accumulator differed = not a true fixed-point); T-ON-golden stays byte-identical. Human rulings (plan section 14): keystone Witherbloom + Sprout Swarm => FAIL-CLOSED REJECT (cast-affordability preservation is unprovable from resolution deltas — affinity monotonicity is necessary but insufficient without a convoke-supply invariant the ResourceVector does not capture); object growth certifies nothing LIVE (4a-live deferred; keystone ships as the offline structural K-offline REJECT); B5 defuse tracks every enabler (phase 4c). Verification: cargo fmt; clippy --all-targets -D warnings (clean); cargo test -p engine (18642 passed, 0 failed); 20 offline object-growth predicate tests incl. K-offline keystone REJECT + R-e2 cost-increase-infinite + previously-fail-open cost keywords + one REJECT per observation/cost axis, each with a paired COVER control; T-ON-golden (Heliod+Ballista live 2p CR 104.4b) green — the fail-safe proof the objects_content_eq ADD did not over-suppress a legitimate draw loop; full loop suites green (loop_check/resource/loop_shortcut/corpus). Both firewall matches exhaustive-no-`_`. FORGE ordering-parity recipe files byte-identical (zero trigger-ordering/parser/card-data surface). Independent review: a 6-round soundness plan-review (S1-S6, each a fail-open-allowlist / equality-loosening class) + an implementation review that caught + structurally closed two cost-firewall gaps the green tests masked (the StaticMode type-misread and the cost-keyword fail-open allowlist). Assisted-by: ClaudeCode:claude-opus-4.8 * feat(engine): finite Fixed(N) loop-shortcut materialization (PR-7 phase 4b) Materialize a confirmed Fixed(N) loop shortcut (CR 732.2a) by driving N whole cycles of the constant-depth loop, committing atomically per cycle. Three-way per-beat drive-outcome split: cross-lethal (CR 704.5a) commits the GameOver already applied to `work` and stops; a recurred settle beat commits the cycle; any other prompt or engine error aborts to manual play (last complete cycle + priority to the living seat, CR 800.4a). Per-iteration `resolve` re-check enforces target legality (CR 608.2b) and object incarnation (CR 400.7) against the last committed board; stale/absent source aborts. Threads an Option<DecisionTemplate> onto ShortcutProposal (serde default, skip-if-none, so On/Off serialized streams are unchanged). The Fixed arm is reachable only under LoopDetectionMode::Interactive; Off/On paths stay byte-identical (candidates.rs still emits only UntilLethal). Per-beat fresh event buffers avoid re-scanning prior beats' events, matching run_auto_pass_loop. Assisted-by: ClaudeCode:claude-opus-4.8 * feat(combo-detect): PR-7 Phase 4c — revocable-∞ (B5) + LOW-2 self-preserving shortcut CR 104.4b: an OPTIONAL beneficial (non-winning) loop is neither crowned (Path A: no faller) nor drawn (Path B: !mandatory) — mark it as a revocable-∞ capability (Path C) with its battlefield enabler set, so an enabler's departure (zones.rs apply_zone_exit_cleanup) REVOKES it. LOW-2: the AI's RespondToShortcut self-preserves via the shared smart_shortcut_response authority. Documents has_no_loss_axis's two-gate asymmetry (measured): REDUNDANT at Path C (poison caught by ==Advantage/PoisonLoss, life by is_net_progress, library by recurrence — discriminator unsatisfiable, waived) but LOAD-BEARING at Path B (sole loss-axis veto, no ==Advantage backstop — kept; a poison loop reaching the gate would be wrongly drawn without it). The Path-B runtime discriminator is waived as measured-unsatisfiable: no constructible fixture carries poison>0 to the gate — the 2-trigger form clears the loop-detect ring on OrderTriggers beats, and the single-compound-trigger form drops the poison conjunct via a parser gap. Ships the Path-B draw-gate behavioral test (control draws / variant poisons out). Follow-up (LOW, 0 live cards, synthetic-only): silent-clause-swallow parser gap — a bare-"and" cross-subject second conjunct ("...and each opponent gets a poison counter") is dropped at parse (kept only in description, not Unimplemented); fixing it unblocks a genuine Path-B has_no_loss_axis runtime discriminator. Assisted-by: ClaudeCode:claude-opus-4.8 * refactor(engine): PR-7 rebase-adaptation — classify post-rebase GameState fields for the loop cover gate Rebase of PR-7 phases 1–4c onto upstream/main d1a1e995e (#5546) surfaced two new GameState fields that the object-growth cover gate must account for. The `_gamestate_partition_is_total` totality guard (exhaustive no-`..` destructure) forces an explicit classification of every field; ONE-SIDED-SAFETY governs it (COMPARED is fail-safe, EXCLUSION is the fail-dangerous direction — exclude a field only when comparing it would break legitimate loop detection): - pending_player_scope_sacrifice_choice: COMPARED (already in upstream's `impl PartialEq`) — a differing paused-sacrifice state is correctly not a fixed-point repeat. - post_replacement_token_substitution_count (CR 614.1a copy-token count): COMPARED via one contained conjunct in `eq_except_growable` — upstream's PartialEq deliberately excludes it, but excluding a count from the cover gate is the fail-dangerous direction. It is None at every sample beat (cleared whenever waiting_for == Priority) or a constant direct-assigned count across a real copy-token loop, so comparing never suppresses a legitimate loop. Upstream's PartialEq is left untouched. - resolution_source_relatch (CR 400.7j self-move re-latch): EXCLUDED-required (measured by ordering trace, not doc-trust). The clear at stack.rs fires at the START of the next resolution; record_loop_detect_sample fires at the Priority window AFTER this resolution's self-move set it, so at the sample beat it holds this iteration's current_incarnation, which bumps every iteration. Comparing it would make every self-moving loop compare unequal (a false negative). Object growth lives in `objects` (stripped and compared by eq_except_growable), so excluding this single-object identity field cannot hide growth. Gate: fmt, clippy --workspace --all-targets -D warnings, test -p engine -p phase-ai (0 failed / 22 binaries), FORGE byte-id (ability_utils/ability_rw byte-identical) all green; 0-behind upstream/main. Assisted-by: ClaudeCode:claude-opus-4.8 * feat(combo-detect): PR-7 Phase 4d-i — offline tapped-fodder cover + BLOCKER-2 structural sign-check Offline soundness core for object/token-growth loop detection (Witherbloom, the Balancer + Sprout Swarm class). NO live caller — the fodder predicate is exercised only by unit tests + the T-B1i discriminator; 4d-ii wires the live clone-drive hook + materializer. LoopDetectionMode stays OFF ⇒ byte-identical to pre-PR-7. New (analysis/resource.rs): - loop_states_cover_modulo_fodder_growth (pub(crate)) + board_covers_modulo_fodder + fodder_content_eq + is_fodder — tapped-split multiset cover for inert fodder growth (untapped(cur) >= untapped(prior) + strict total growth); stable-engine content via objects_content_eq (sole authority — GameState PartialEq is objects.len()-only). Drops the abstract cost-surface firewall (driven-path-only); detect_loop STAYS on loop_states_cover_modulo_object_growth (pinned by T-B1i). - driving_resources_non_decreasing + projected_player_axes + project_out_player_consumables refactor (no-`..` compiler-total destructure shared with project_out_resources) + _projected_player_axes_is_total — BLOCKER-2 structural sign-check: blanket fail-closed veto on any controller-side decrease of a projected consumable (energy/poison/per-kind player_counters + per-kind monotone object counters), closing the project_out_resources sign-unchecked hole. CR 106.1/119/122.1/122.1a/ 306.5c/310.4c/606.3/613.4c (all grep-verified). Tests: 15 inline (fodder cover + siblings; the 8-fixture sign-check family incl the structural per-kind player_counter discriminator; _projected_player_axes_is_total) + T-B1i (detect_loop returns None on a convoke-fodder pair; asserts both None AND fodder-cover==true). Reject-preservation regressions object_growth_k_offline_* / object_growth_r_a2_* stay green. Gate (direct cargo, worktree): fmt clean; check; clippy --all-targets -D warnings 0 warn; test -p engine 16175 passed / 0 failed. Plan and impl each reviewed clean by independent agents. 4d-ii carries (flagged, unreachable in 4d-i — no live caller): (1) tie the map-consumable sign-veto to the projected destructure (a projected_player_maps helper from the same no-`..` site) before wiring the live caller, so a future 2nd map consumable cannot be projected-out-and-sign-unchecked (BLOCKER-2 one field over); (2) veto controller-side damage_marked INCREASE (CR 704.5g) once object_resource_axes_match is dropped on the driven path. Assisted-by: ClaudeCode:claude-opus-4.8 * feat(combo-detect): PR-7 Phase 4d-ii — live token-growth loop detection + CR 732.2a offer Detect infinite token-growth loops live end-to-end and offer the CR 732.2a shortcut. Acceptance bar (the 51st): Witherbloom, the Balancer + Sprout Swarm parses, casts (convoke + affinity + buyback), detects, OFFERS, and materializes N real untapped Saprolings on Accept. Foundation (injector-independent): - RecastContext + GameState.last_recast_context. EXCLUDED from impl PartialEq so the live CR 104.4b 2p-draw comparison is byte-identical to pre-PR-7; compared only via explicit cover conjuncts (eq_except_growable + loop_states_equal_modulo_resources), keeping the N7 discriminator non-vacuous. - projected_player_maps: no-`..` structural tie for map-typed player consumables (a future map consumable build-breaks); damage_marked-INCREASE veto (CR 704.5g). - triggers.rs trigger-order filter_map made exhaustive (future PinnedDecision variant build-breaks). Live-drive: - PinnedDecision::ConvokeTaps (CR 601.2h + CR 702.51a/b) with select_convoke_taps as the single convoke cost-selection authority (the ConvokeTaps replay routes through it; shares is_convoke_eligible/object_cant_tap; no parallel path). - drive_recast_iteration injector: exhaustive on WaitingFor, fail-closed (Err(RecastAbort)) on every unpinned prompt; the ManaPayment decision loop is an exhaustive non-`_` match so a future ConcreteDecision variant build-breaks. - try_offer_object_growth_shortcut hook: read-only &GameState (live write type-impossible); OFFERS via WaitingFor::LoopShortcut, never auto-resolves (CR 732.2a); SimulationProbeGuard spans both drives (no hook recursion). - Materializer third disjunct (loop_states_cover_modulo_fodder_growth) + Fixed(N) object-growth cycle; leaves a valid state (right controller, ring cleared, last_recast_context cleared, priority to next living seat CR 800.4a). - RecastContext capture gated on loop_detection.samples() — #4603 opt-in gate: in default LoopDetectionMode::Off nothing is written, so the serialized surface is byte-identical to pre-PR-7. Tests (real Witherbloom + Sprout Swarm, no synthetic on the positive): - P1 offers live (LoopShortcut, TokensCreated cert, exactly one real Saproling from the single real cast); P2 materializes N on Accept. - N1/N3 reject (no affinity / no buyback); N6 live no-offer control (damage-drain recast, CR 704.5g branch d) with a positive reach-guard, revert-probed. - off-mode #4603 gate (OFF is_none + ON reach-guard, revert-probed); select_convoke_taps x4 + convoke_pin. - The 51st loop body has NO auto-resolved randomness (vanilla Saproling, no ETB, deterministic convoke) — runtime-confirmed by P1. N4 (energy) / N5 (player-counter) no-offer controls are covered at the unit + structural-wiring level, not live fixtures: a live per-recast drain on these axes is genuinely infeasible in today's buyback-recast mechanism (an energy cost breaks buyback recurrence — the naive live test was proven vacuous by revert-probe and removed rather than shipped; no engine effect drains Experience/Ticket counters). The shared driving_resources_non_decreasing seam (branches a/b/d) is live-verified via N6. The branch-(a)/(b) sign-checks are fail-closed defensive guards, live-unreachable today but not dead code. The offer path is fail-closed-modulo-auto-randomness until the A2 determinism gate (separate follow-up pass). Assisted-by: ClaudeCode:claude-opus-4.8 * feat(combo-detect): PR-7 Phase 4d A2 determinism gate — reject randomness-bearing recast loops (CR 732.2a) A CR 732.2a shortcut "can't include conditional actions, where the outcome of a game event determines the next action" — so an object-growth loop whose recast cycle draws game randomness must NOT be offered as a fixed-count shortcut. This wires a two-layer fail-closed determinism gate into the live offer path (`try_offer_object_growth_shortcut`), discharging the b132ad9f8 "fail-closed-modulo-auto-randomness" carry. (a) Static, compile-time-exhaustive scan of the recast spell body before driving: `effect_is_randomness_bearing` (a wildcard-free match over `Effect` — a future random-bearing variant BUILD-BREAKS rather than being silently offered) + `spell_ability_bears_randomness`; the `collect_effects` walker gains the two nested `replacement_effect` arms it was missing. Covers auto-resolved coin (CR 705.1) / die (CR 706.1a) and the field-level "game selects at random" selections (CR 701.9b) via `is_random()`. (b) Post-drive RNG stream-position backstop: the driven clone starts as an equal `state.clone()` (ChaCha20 derives `Clone`, preserving word position), so `s_n2.rng.get_word_pos() != state.rng.get_word_pos()` iff any randomness was consumed during the deterministic detection drive — from ANY source, including external triggered/replacement randomness the static scan can't see. Strictly-more-conservative (only turns OFFERs into NO-OFFERs). Soundness (measured): external coin/die/`Choose` are already rejected by the fodder cover (`scan_effect => Axes::CONSERVATIVE` reads the growing sibling axis); the recast spell body is NOT scanned by the cover, so (a) is the gate there. (b) is the universal runtime backstop. The custom-classified random card-selections (`Discard`/`RevealHand`/`ChooseFromZone`) can classify `sibling=false` and pass the cover, but each draws RNG inline inseparably from an RNG-outcome-dependent object move/mark — breaking byte-identical loop reproduction — so no reachable input makes (b) the SOLE gate today; (b) is a complete future-proof backstop rather than a currently-isolable path. Verified by an independent /review-impl pass (CLEAN-FOR-COMMIT). Tests: `object_growth_random_recast_body_does_not_offer` (recast-body coin → no offer; coin-free twin shell still OFFERs, proving the input reaches the offer path and isolating the coin as the sole disqualifier) + leaf tests discriminating `is_random()` on both selection-mode types. The paired positive `object_growth_51st_sprout_swarm_covers_and_offers` is unchanged. Assisted-by: ClaudeCode:claude-opus-4.8 * feat(combo-detect): PR-7 Phase G2 — loop-detect ring survives a multi-trigger OrderTriggers beat (CR 603.3b/732.2a) A self-refilling mandatory loop whose cycle emits 2+ simultaneous distinguishable triggers parks at `WaitingFor::OrderTriggers` each iteration (CR 603.3b). The loop-detection ring was WIPED on that beat by two clears, so it never accrued the >=2 samples CR 732.2a detection needs — multi-trigger loops were undetectable while single-trigger loops (which settle at Priority each cycle) worked. Ordering simultaneous triggers is a forced step of putting them on the stack, not a deliberate cascade-break, so the ring must survive it. Two match-arm edits in game/engine.rs (no new variant/field): - SEAM1 (pass_priority_once_with_pipeline): guard the ring-clear `else` with `!matches!(wf, WaitingFor::OrderTriggers { .. })` — settling into the mandatory ordering window leaves the ring intact (the record path stays gated on Priority{active}; the triggers are staged off-stack in pending_trigger_order, so the stack is momentarily shrunk here). Every other settle (drain-to-empty, shrinking stack, interactive non-Priority window) still clears. - SEAM2 (apply_action): exempt `GameAction::OrderTriggers` from the deliberate- action clear (`!matches!(action, PassPriority | OrderTriggers { .. })`) — the ordering response continues a mandatory cascade. Every other non-Pass action (cast/activate/play-land) still invalidates the ring. SetTriggerOrderTemplate early-returns before this clear, so it is unaffected. Both edits are required: the ring is wiped at two moments of one cycle — SEAM1 when the resolution settles into the window, SEAM2 when the window is answered. Test (mechanism-scoped): drive_multi_trigger_ring_survives_order_triggers_beat asserts an OrderTriggers beat occurs (reach-guard) + max_ring>=2 (ring survival). Revert-probe: reverting EITHER seam alone drops max_ring 2->1 (and the measured end-to-end GameOver Some(P0) -> None), proving both seams load-bearing. Adds a drive_with_trigger_ordering helper, an idx18 single-trigger no-order-beat non-regression, and a no-refiller false-positive control. The fixture also reaches end-to-end GameOver at beat 10 (measured, documented as a NOTE not asserted — max_ring==2 sits at the 2-sample detection edge; the robust E2E multi-trigger witness is the 52nd/G1). Assisted-by: ClaudeCode:claude-opus-4.8 * refactor(engine): PR-7 rebase-adaptation — classify StaticMode::CantBeBlockedUnlessAllBlock in the loop cover gate Rebase onto upstream/main (5efd9db32) surfaced a new `StaticMode` variant (`CantBeBlockedUnlessAllBlock`) via the exhaustive no-`_` match in `static_mode_references_growing_class` (analysis/resource.rs) — the cover-gate cost-surface scanner a new variant must be classified in before it compiles. It is a combat blocking-restriction static with no cost surface, so it reads no growing-class resource → classified read-free (`=> false`), alongside its siblings CantBeBlocked / CantBeBlockedExceptBy / CantBeBlockedByMoreThan / MustBeBlockedByAll. The 11 PR-7 commits rebased patch-identical (0 conflicts). Full verify green: check + clippy --all-targets (0 warn); test -p engine lib 16237 + integration 2713, 0 failed (partition-lock=53, loop suites, on_shortcut_byte_identical_to_pre_pr7_golden). FORGE + coverage N/A (delta touches neither ability_rw nor the parser). Assisted-by: ClaudeCode:claude-opus-4.8 * feat(combo-detect): PR-7 52nd/G1 — live poison-loss loop-winner + per-victim ResourceAxis::Poison re-key (CR 704.5c) G1 — generalize the live mandatory-loop-winner to the poison axis. The faller partition now recognizes a per-cycle poison-accruing player (delta.poison[p] > 0) alongside life-loss (CR 704.5a / 704.5c); the aggregate-poison firewall is removed; classify_win_kind reads the per-victim field AND the static .counters path (dual authority for the live + candidate-graph callers); the gate accepts LethalDamage | PoisonLoss; a poison-faller simultaneity guard (equal per-cycle delta AND equal absolute poison at cycle_end among fallers) closes a >=3p staggered-poison fail-open (CR 704.3). Option A re-key (mandated by the resource.rs / derived_views.rs guard-notes) — the analysis poison axis is re-keyed by victim PlayerId: new ResourceVector.poison: BTreeMap<PlayerId, i64> + ResourceAxis::Poison(PlayerId) (a per-victim parameterization mirroring Life(PlayerId), not a proliferated sibling); attribution_player victim-routes Poison(p) => p; has_no_loss_axis and the From<&ResourceAxis> for AxisKey drift-gate follow. Both guard-notes discharged. 3 display-only frontend edits (ResourceAxis union/tag + HUD counters family). Two-path witness architecture — the real Kilo/Freed/Relic activation combo is covered by the offline certification driver (drive_offline_kilo_freed_relic); the live equality-sampler cannot see a player-driven activation loop by construction (the stack drains between activations => the ring-sample CLEAR arm fires => the ring never accumulates a recurrence). A synthetic self-refilling drain-poison trigger (interactive_poison_axis_surfaces_in_offer_certificate) E2E-proves the re-keyed Poison(PlayerId) axis reaches a live offer certificate (real recurrence; G-5 revert-probe flips it). The win_kind==PoisonLoss full-drive and the Path-B runtime draw-veto discriminator are waived as measured-unreachable (proliferate's ProliferateChoice beat clears the ring) — G-15 kept load-bearing plus the in-code proof; the novel faller/classify logic is covered by loop_check.rs unit tests. Verification: cargo fmt; clippy -p engine --all-targets -D warnings clean; cargo test -p engine 16240 lib + 2714 integration, 0 failed; Off/On golden byte-identity green; frontend type-check + lint clean; coverage baseline unchanged; FORGE N/A (no ability_rw / same-event ordering surface). All CR annotations grep-verified against docs/MagicCompRules.txt. Assisted-by: ClaudeCode:claude-opus-4.8 * refactor(engine): PR-7 rebase-adaptation — Effect::ForEachCategory in the A2 randomness scan Main parameterized Effect::ForEachCategoryExile into Effect::ForEachCategory { action: ForEachCategoryAction } (a "parameterize, don't proliferate" refactor). Retarget the exhaustive Effect match arm in effect_is_randomness_bearing (ability_scan.rs) — ForEachCategory is deterministic category iteration, so it stays in the non-randomness group. The import union (AbilityCost / AbilityDefinition / ContinuousModification from PR-7 phase 4a-core + main's new ForEachCategoryAction) was resolved in-place during the rebase. Rebase of feat/combo-detect-pr7 (13 commits) onto upstream/main a61e7fdd9: one textual conflict (the ability_scan.rs import list) plus one semantic drift (this rename — the patch applied cleanly but referenced the removed variant, surfacing at verification not conflict). Full re-verify green: clippy -p engine --all-targets -D warnings clean; cargo test -p engine 16252 lib + 2718 integration, 0 failed; Off/On golden byte-identity preserved. Assisted-by: ClaudeCode:claude-opus-4.8 * fix(engine): PR-7 gate-relax item-4 — Typed-filter drains read projected axes The loop-cover gate's item-4 (`stack_entry_reads_projected_resource`) rejected every `TargetFilter::Typed`-targeted drain via a blanket `scan_target_filter(Typed) => Axes::CONSERVATIVE` (projected:true unconditionally). Combined with item-3's raw `targets.is_empty()` coarseness (COMMIT 2), this co-dominated the rejection of escalating targeted-drain loops (Vito, Thorn of the Dusk Rose), making them undetectable. Refine ONLY the `.projected` field of the `Typed` arm to `typed_filter_reads_projected(tf)` — the event/sibling axes are kept literal `true` (byte-preserved). New exhaustive `scan_filter_prop` classifier (no `_` wildcard, unknown => CONSERVATIVE): QuantityExpr/TargetFilter/PlayerFilter-bearing props recurse; ControllerRef-bearing recurse (every outcome projected:false); `CountersPutOnThisTurn`/`ControllerChoseLabel` fail-closed CONSERVATIVE. Ground truth: a prop is projected iff `project_out_resources` clears the field its runtime eval reads. `WasDealtDamageThisTurn` (eval reads `state.damage_dealt_this_turn`) and `ZoneChangedThisTurn` (eval reads `state.zone_changes_this_turn`) are both cleared by `project_out_resources` and NOT strict-compared by `object_resource_axes_match` (which compares only `damage_marked` + `counters`) — classified CONSERVATIVE (CR 120 / CR 400 / CR 603.6a). The variant doc's "damage_marked > 0" was stale; runtime eval reads the journal. The remaining "this-turn" leaves (`EnteredThisTurn`/`Attacked`/`Blocked`/`ControlledContinuously`) read non-cleared object/combat fields => NONE. cfg-test flagged-set shrinks {Dethrone,Increment,Soulbond,Training} => {Dethrone,Increment}: the refinement clears Soulbond/Training fail-closed false-positives (their Typed filters carry no projected prop). Verify: clippy -p engine --all-targets clean; lib 16260 + integration 2719, 0 failed; all 5 typed_filter_* classifier discriminators pass. Assisted-by: ClaudeCode:claude-opus-4.8 * fix(engine): PR-7 gate-relax item-3 — forced-unique targets clear the ordering-input gate The loop-cover gate's item-3 (`stack_entry_has_no_ordering_input`) read raw `ability.targets.is_empty()`, rejecting any non-empty-target stack entry as introducing ordering freedom. That is too coarse: a forced-unique target (the sole legal assignment) offers no ordering choice. Combined with item-4's Typed-filter projected-axis blind spot (COMMIT 1), the two conjuncts co-dominated the rejection of escalating targeted-drain loops. Widen `stack_entry_has_no_ordering_input`: a non-empty-target entry passes iff `forced_unique_targeting(state, ability)` holds — `build_target_slots` + `auto_select_targets_for_ability(...) == Ok(Some(_))` (exactly one legal assignment; fail-closed on Err / >=2 candidates / empty slots). CR 603.3d / CR 608.2b: a determinate single-target ability contributes no resolution-choice branching to the loop cover. Vito, Thorn of the Dusk Rose 2-player determinate-win now EMPIRICALLY detects and offers the CR 732.2a shortcut. Discriminator = `life(victim) > 0`: early omega-cover detection leaves the drained opponent positive, whereas losing detection grinds them to <= 0 via natural resolution (CR 704.5a), which also wins P0 — so `GameOver{P0}` alone is not discriminating. Negative controls: `n1_open_target_growing_still_rejected` (open/non-unique targets still reject) and `item6_still_vetoes_under_forced_unique_targets` (the resolution-choice axis, item-6, still vetoes independently under forced-unique targets). Verify: clippy clean; integration vito_bond_conqueror_2p_determinate_win + n1_forced_unique_targeted_cover_true + 2 negative controls pass; both per-conjunct revert-probes flip (item-3 revert => no-detect; item-4 revert => no-detect). Assisted-by: ClaudeCode:claude-opus-4.8 * refactor(engine): PR-7 rebase-adaptation — classify AbilityCost::UnattachFrom in the object-growth cost scan Rebase of feat/combo-detect-pr7 (16 commits) onto upstream/main 1c3eee9dd (12 new commits incl. Captain America, First Avenger #5552 + release v0.22.0). One drift: main's Captain America commit added `AbilityCost::UnattachFrom { .. }` (unattach a named permanent as an activation cost). The Phase-4d object-growth cost scan's `scan_ability_cost` (ability_scan.rs) is a no-wildcard exhaustive match, so the new variant surfaced at compile (E0004), not as a textual conflict. `UnattachFrom` is a fixed structural cost with no dynamic board read and no projected-resource drain — classify it `Axes::NONE` alongside the existing `AbilityCost::Unattach` (main categorizes both as `CostCategory::Unattaches`). Every other exhaustive AbilityCost match in the engine already covers the variant (main-added or pre-existing); only this Phase-4d scan needed the arm. Full re-verify green: clippy -p engine --all-targets clean; lib 16272 + integration 2750, 0 failed. The two commits the 3-way merge re-anchored (phase-4b `apply_confirmed_shortcut` context; phase-4d-ii recast capture following main's `finalize_cast_with_phyrexian_choices` -> `_inner` split) are semantic-guarded green by b3_materialize_* and object_growth_51st_*; Vito gate-relax E2E + poison-axis E2E pass. Assisted-by: ClaudeCode:claude-opus-4.8 * feat(engine): PR-7 53rd Pentad — shared strict-growth Generic-counter loop-cover predicate Cover the infinite charge-counter-growth proliferate loop (Pentad Prism + Kilo/Freed/Relic) and offer the CR 732.2a resource shortcut. New sibling predicate `loop_states_cover_modulo_counter_growth` (analysis/resource.rs): strict-growth-only over the PRESERVED `Generic` object-counter axis, fail-closed. - `CounterGrowthDisposition {StrictGrowth, Stable, Consumed}` (typed, not bool). `classify_generic_counter_growth` is a wildcard-free `CounterType` match — the per-type classification table itself (a new variant won't compile until classified), kept in lockstep with `is_monotone_loop_resource`. `Consumed` (any `Generic` counter fell) takes precedence over `StrictGrowth` (mixed grow+consume rejects) — the infinite-consume soundness trap. - `equalize_generic_counters` overwrites only `Generic` counts with `prior`'s, then rides the existing `loop_states_equal_modulo_resources`, so any non-`Generic` drift still rejects via the untouched equality. Wired at exactly two non-GameOver seams (the firewall): `detect_loop` gate-1 (offline `Advantage` certification) and `interactive_loop_bridge` Path-C (live revocable-unbounded capability mark). Deliberately NOT wired into `live_mandatory_loop_winner` (GameOver-capable) — a conservative fail-closed boundary. A charge/burden growth loop classifies `WinKind::Advantage` (CR 104.4b: an optional loop is not a draw), so an over-claim is a declinable offer / revocable mark, never a wrongful game-end — the revocability soundness bound (the equalize step introduces a new projected `Generic`-counter axis, sound by this bound, not by firewall parity). GENERAL over preserved-`Generic` growth: Pentad Prism (charge) and The One Ring (burden) are the SAME cover, so One-Ring's growth cover is discharged here — its later pass is offer-layer + card-verify only. Two-path coverage (matches the existing architecture): the real proliferate loop is offline-certified (`drive_offline_pentad_prism`, real Kilo/Freed/Relic + Pentad seeded >=1 charge via Sunburst, CR 702.44a); the live Path-C disjunct is exercised by a sampler-visible self-refilling charge-growth trigger — the live equality sampler records only non-shrinking-stack cascades, and a `ProliferateChoice` beat hits the pre-existing ring-clear arm. 8 discriminating tests (4 unit + #5/#8 offline + #6/#7 live), all non-vacuous: the consume control (#2) is a same-`Generic("charge")` decrease that flips only under a direction-blind revert; #8 asserts `Some(Advantage, Counter(Other,Other))`; #6 marks the counter axis without any GameOver; #7 proves #4603-OFF byte-identity. Verify: clippy -p engine --all-targets 0/0; analysis lib 173 + loop_shortcut 28 + the 8 new tests green. Plan-reviewed + impl-reviewed clean. Assisted-by: ClaudeCode:claude-opus-4.8 * test(engine): PR-7 54th Walking Ballista — offline LethalDamage acceptance + >2p win-authority controls Walking Ballista's infinite-damage combo (proliferate the +1/+1 counters on the Kilo/Freed/Relic mana-neutral engine, then remove-to-ping) is already covered by existing machinery — this pass adds only acceptance + guard tests, no production change. Rationale (measured, twice-reviewed): - The +1/+1 counters are MONOTONE, so `project_object_for_loop` strips them and the existing `loop_states_equal_modulo_resources` gate-1 already certifies the loop with the damage/life axes as the movers (unlike the 53rd Pentad's PRESERVED `Generic` charge, which needed the new counter-growth cover). - `classify_win_kind` already returns `LethalDamage` for opponent `damage_dealt > 0`. - The loop is offline-only: every cycle contains an `ActivateAbility` (Relic tap, Freed untap, ping) and `apply_action` clears `loop_detect_ring` on every non-PassPriority/OrderTriggers action, so the live GameOver-capable seams are never reached. Ballista's `LethalDamage` is an OFFLINE cert (same class as the 52nd Kilo offline PoisonLoss), never a live game-end. So NO live-lethal offer and NO >2p damage-distribution pin are built here (both are unreachable for the real card; the distribution pin belongs to the future combo-declaration UI pass, whose cert application must route through the all-opponents-fall win-authority). Tests (test/harness-only; the driver is `#[cfg(any(test, feature = "combo-verify"))]`, absent from `DRIVERS`/`CORPUS`, so the 53/12/4/37 partition is unchanged): - `drive_offline_kilo_freed_relic_ballista` — standalone offline driver mirroring `drive_offline_pentad_prism_seeded` (real cards, abilities selected by effect/cost). - N2 `drive_kilo_freed_relic_ballista_certificate` — seed 2 → `LethalDamage` + `covers([DamageDealt(P1)])` + `!mandatory` (a resolved opponent ping is the only way to populate the damage axis). - N3 `drive_kilo_freed_relic_ballista_x0_no_damage_axis` — seed 0 → dead 0/0, the ping activation is rejected (bool-returning `activate_and_resolve`, no panic), degrades to the pure-proliferate `Advantage` loop with no damage axis. - N5 `ballista_mp_single_opponent_ping_no_false_win` (→ None) + `ballista_mp_all_opponents_distributed_ping_wins` (→ Some(P0)) — CR 104.2a: a >2p win requires all opponents to fall; reverting the `nonfallers.len() != 1` guard flips the negative None→Some(P0). (Self-ping→Advantage is covered by the existing `classify_win_kind_controller_only_damage_is_not_lethal` unit control.) Verify: clippy -p engine --all-targets 0/0; the 4 new tests + partition/shape locks (53/12/4/37) green. Plan-reviewed + impl-reviewed clean. Assisted-by: ClaudeCode:claude-opus-4.8 * test(engine): PR-7 One-Ring — opponent-burden proliferate Advantage cert + downstream upkeep-lethal (reuse-only) Test-only pass. The One Ring's Generic("burden") counter grows on an OPPONENT's copy under the Kilo/Freed/Relic infinite-proliferate engine; the combo detector already certifies this via the 53rd Pentad loop_states_cover_modulo_counter_growth cover — ZERO production change. Part A (offline cert): drive_offline_kilo_freed_relic_one_ring — a cfg-gated standalone structural twin of drive_offline_pentad_prism_seeded with The One Ring installed on P1 (opponent). NOT added to DRIVERS/CORPUS (partition 53/12/4/37 held). - seed=1 -> detect_loop = Some(WinKind::Advantage), covers Counter(Other,Other); the burden Counter axis is player-unattributed, so an opponent's burden certifies identically to a controller's charge. - seed=0 control -> Some(Advantage) with NO Counter axis (the loop stays Some via Trigger(Proliferate)) — the runnable discriminator. Part B (downstream lethal): materialize N burden via the counter authority add_counter_with_replacement, advance to the opponent's upkeep, and let the printed .triggers[1] LoseLife(CountersOn(Source,"burden")) fire and resolve. N >= life -> CR 704.5a SBA -> GameOver{winner:Some(P0)} (CR 104.2a). Sub-lethal control (N = life-1) -> opponent survives, no GameOver. CR 701.34a (proliferate), 104.4b (optional loop != draw), 704.5a, 104.2a, 500.6/503.1a (upkeep triggers), 608.2, 122.1, 603.6a, 602.1 verified. Fixture: surgical single-key insert of "the one ring" from the export (one entry; no other fixture entry moved). Assisted-by: ClaudeCode:claude-opus-4.8 * feat(engine): PR-7 combo-declaration UI Stage 1 — ShortcutDecisionSchema on the loop-shortcut offer (engine READ-side) Stage 1 of 3 for the combo-declaration UI (engine schema exposure -> frontend render/collect -> forward-pointer routing). Engine-only, READ-side: exposes a per-viewer decision schema on WaitingFor::LoopShortcut so the frontend (Stage 3) can render an offered CR 732.2a loop's open per-iteration choices and collect pins, computing nothing. A clean parent commit that LOCKS the FE contract. New serde types (analysis/decision_template.rs), the 1:1 read-side dual of the 5 loop-declaration PinnedDecision variants (Order excluded — CR 603.3b trigger-order is not a loop-declaration choice): ShortcutDecisionSchema { iteration_count: IterationCount, points: Vec<DecisionPoint> } DecisionPointKind { Targets{legal_targets}, ConvokeTaps{tappable}, Mode, MayChoice, UnlessBreak } - schema field on WaitingFor::LoopShortcut (#[serde(default)]), populated at both offer sites. build_shortcut_schema CARRIES the detection decision list (build_recast_template output — single authority, no re-derivation); drain offers carry no pins -> empty schema. The only live Stage-1 decision-point is ConvokeTaps; the 4 other builder producers defer to Stage 2 (debug_assert!+None fail-safe — no producer emits them until the targeted-loop gate-relax). - iteration_count: UntilLethal for a determinate CR 704.5a/704.5c drain, else Fixed(1) (an FE-overridable display seed). - MP redaction inside filter_state_for_viewer (CR 732.2a): a non-controller viewer's schema drops hidden-info legal-targets, reusing the existing hand visibility composite keyed on each target object's owner+zone. A structural no-op for Stage-1's only live (public-battlefield ConvokeTaps) set, but the seam + a two-directional revert-probed test lock the security contract before Stage 2 produces hidden-info Targets sets. Tests: T1 live convoke-taps (board-derived, tapped-payer excluded), T2 drain empty+UntilLethal, T3 iteration_count exhaustive over WinKind, T4 redaction (controller keeps hidden target / non-controller drops only it — revert-probe leaks), T6 serde round-trip FE-consumable. cargo check --workspace --all-targets green (phase-ai/wasm/server compile with the new field). Assisted-by: ClaudeCode:claude-opus-4.8 * feat(engine): PR-7 combo-declaration UI Stage 2 — pin ingestion + drive-and-measure win derivation (engine WRITE-side) Builds the engine WRITE-side of the loop-shortcut combo-declaration UI on top of the Stage-1 schema: - validate_pins: fail-closed value-legality firewall (PinValidation), exhaustive over PinnedDecision, hooked at the top of handle_declare_shortcut before APNAP; skipped for choice-free (empty) schemas whose win derivation is pin-independent (preserves the Fixed(N) resolve firewall). CR 608.2b/700.2/732.6. - drive_one_shortcut_cycle + inject_pinned_answer: general mid-drive pin injector (CycleOutcome), extracted behavior-identical from materialize_fixed_shortcut. TriggerTargetSelection re-resolves pins per iteration; the OrderTriggers arm uses the internal reconcile-free apply_action(OrderTriggers) path (never drain_order_triggers_with_identity) so the drive cannot re-enter the offer/crown hook. CR 603.3b/608.2b/702.51a. - E1 crown (apply_until_lethal_shortcut): no longer an unconditional crown. Drives one pin-faithful cycle, measures ResourceVector::delta(snapshot(boundary), snapshot(work)), runs live_mandatory_loop_winner VERBATIM, and crowns GameOver{winner: Some(controller)} only when the measured winner is the proposer — else manual fallback (clearing last_recast_context to avoid an object-growth re-offer livelock). Inherently closes the latent Advantage-loop-declared-UntilLethal mis-crown. CR 704.5a/704.5c/104.2a/800.4a/732.2a/732.2c. - F2 hardening: the >=2-faller crown path also re-verifies fallers_lives_pairwise_equal on the boundary/pre-drive faller lives (the offer's own certification inputs), so a staggered-death unequal-absolute-life drain does not crown. CR 704.3. Tests A-G (loop_shortcut integration + inline stage2_injector) each carry a soundness discriminator with a measured revert-probe and a paired positive reach-guard. Full suite green; cargo check/clippy --workspace --all-targets RC=0. Assisted-by: ClaudeCode:claude-opus-4.8 * feat(client): PR-7 combo-declaration UI Stage 3 — loop-shortcut declare + respond modals (display-only) Frontend for the loop-shortcut combo-declaration UI (engine schema locked by Stage 1/2): - LoopShortcutModal: two display-only modals. DeclareShortcutModal (confirm-only — renders the offer summary + engine-proposed iteration_count + ConvokeTaps eligibility READ-ONLY; dispatches DeclareShortcut{count, template:null}) and RespondToShortcutModal (renders the viewer-filtered ShortcutProposal; Accept / Break-out dispatches RespondToShortcut{response}). Mirror ModeChoiceModal. CR 732.2a/2b/2c. - 5 new TS mirror types (ShortcutDecisionSchema, DecisionPoint, DecisionPointKind, DecisionSlot, DecisionSource) matching the engine serde shapes; the stale LoopShortcut WaitingFor type gains its required schema field. - 3-site actor-gate fix (CR 732.2a, mirrors engine acting_player()): usePlayerId.ts (human render), aiController.ts + p2p-adapter.ts (AI drivers) admit LoopShortcut{controller} into the engine-derived authorized-submitter path — pure routing, no logic. Closes the On-mode AI-controller hang. - Registry migration: LoopShortcut + RespondToShortcut moved PENDING_MODAL_PHASE5 -> HANDLED_WAITING_FOR_TYPES + dispatch-coverage literals; both mounted in GamePage. i18n comboShortcut.* in all 7 locales (parity-gate green). Display-only: every value from an engine schema field, template:null, ConvokeTaps read-only, zero React game-state computation. Pin-capture deferred (rides the >2p targeted lane). T1-T8 discriminating tests; targeted FE gate green (type-check, lint 0-errors, vitest). Assisted-by: ClaudeCode:claude-opus-4.8 * fix(client): mirror GameAction::SetTriggerOrderTemplate in the FE union (PR-7 phase-2 boundary sync) PR-7 phase 2 (commit 67113b225, trigger-order resolver) added engine GameAction::SetTriggerOrderTemplate (types/actions.rs:641) but never mirrored it in the frontend GameAction union, leaving boundary-guardrails.test.ts's engine<->FE lockstep red. Latent because Stages 1-2 were engine-only and the frontend gate never ran on the branch until Stage 3. Serde-faithful transcription mirroring the SetMayTriggerAutoChoice/MayTriggerAutoChoiceOp sibling: SetTriggerOrderTemplate -> TriggerOrderTemplateOp{Save{sources,order}|Remove{key}|ClearAll} -> DecisionGroupKey{sources,kind}/DecisionKind. Pure type mirror, zero logic (no dispatcher/handler — a SetTriggerOrderTemplate UI, if ever wanted, is the trigger-order-resolver feature's concern). boundary-guardrails now green; full FE suite green + type-check clean. CR 603.3b. Assisted-by: ClaudeCode:claude-opus-4.8 * refactor(engine): PR-7 rebase-adaptation — classify StaticMode::CountersCantBeRemoved in the loop cover gate Upstream #5663 (a21ac2493) added StaticMode::CountersCantBeRemoved (Fear of Sleep Paralysis). PR-7's exhaustive no-wildcard cost-surface scan static_mode_references_growing_class (analysis/resource.rs) must classify it: it is a counter-removal prohibition with no payment cost (counter_type is a filter, not a board read), so its cost surface is read-free -> false, grouped with CountersPersistAcrossZones. Rebase-adaptation only; no behavior change to PR-7's own commits. Assisted-by: ClaudeCode:claude-opus-4.8 * fix(engine): annotate analysis-time zone-clone mutations for the zone-authority census (PR-7 CI) The CI-only engine-authority ratchet (scripts/check-engine-authorities.sh -> zone_authority_census.py; not run by clippy/test, so the local gate was green) flagged two NEW raw zone-container mutations in PR-7 code: - analysis/resource.rs::eq_except_growable — clears battlefield on a DISCARDED comparison CLONE for loop-cover equality. Takes &GameState and mutates a local clone consumed by ==; no gameplay zone event can fire on it. - game/engine.rs::normalize_recast_frame — prunes hand/graveyard/library on a DISCARDED recast comparison-frame CLONE. Takes &GameState and returns a normalized clone; no gameplay zone event fires on it. Both are genuinely non-replaceable analysis-time normalizations (not live gameplay zone changes routed through zone_pipeline), so each site is annotated // allow-raw-zone: <reason> and the frozen baseline (scripts/zone-authority-baseline.txt) is regenerated via --write (2 exempt rows added; no baseline row dropped). Gate B PASS. Comment-only code change; no behavior change. Assisted-by: ClaudeCode:claude-opus-4.8 * fix(engine): address #5672 review — Clash randomness (CR 732.2a), R2 typed enums, FE dead code - Classify Effect::Clash as randomness-bearing: CR 701.30a reveals the top of a shuffled library (hidden info at pin time) and CR 701.30d decides the winner by revealed mana value, so a loop whose recast body contains a clash is not shortcut-eligible under CR 732.2a. Moved the false->true arm in effect_is_randomness_bearing + added a discriminating assertion to randomness_classifier_discriminates (revert-probe: moving it back flips the assertion). - R2 (no bool fields): PinnedDecision/ConcreteDecision take/pay bool -> MayChoiceOption{Take, Decline} / UnlessPaymentOption{Pay,Decline}; RecastContext.uses_buyback bool -> BuybackUsage {Used,NotUsed} with a pays() accessor for the DecideOptionalCost consumer. - Remove the dead-code '?? []' guard in LoopShortcutModal (schema.points is non-optional). Assisted-by: ClaudeCode:claude-opus-4.8 * fix(PR-5672): expose interactive shortcut UI * feat(engine): CR 732.2a LoopShortcut controller-decline + engine-owned convoke count (#5672 review) Addresses maintainer matthewevans' CHANGES_REQUESTED on #5672 (un-holds follow-up #24). BLOCKER (CR 732.2a): the loop winner was forced to propose a shortcut (only DeclareShortcut was accepted at WaitingFor::LoopShortcut). CR 732.2a makes proposing a shortcut a MAY. Add a unit GameAction::DeclineShortcut: the controller-only decline restores ordinary priority (living_priority_seat) and clears the object-growth routing context (last_recast_context) so the post-return reconcile does not re-offer. Seam-1 (interactive/loop_detect_ring) re-offer is already suppressed by apply_action's deliberate-action ring invalidation (a deliberate break clears the ring); the handler owns only the Seam-2 gap. A genuine re-recurrence re-arms the offer. Controller-only authorization is enforced upstream via check_actor_authorization. NON-BLOCKING: move the convoke tappable-count derivation out of React into the engine-owned ShortcutDecisionSchema (convoke_tappable_count, CR 702.51a); the modal renders it directly. Adds a FE Decline button (display-only) + comboShortcut.decline in all 7 locales. Two discriminating end-to-end decline tests (interactive dismissal + object-growth suppression, each with an independent revert-probe) + a wrong-actor auth-reject test. #4603 OFF stays byte-identical (no new GameState field; the offer is never installed when OFF). Assisted-by: ClaudeCode:claude-opus-4.8 * refactor(engine): PR-7 rebase-adaptation — #5686 legacy_ field renames + drain/draw_sequence adds in the partition guard Rebase onto upstream/main 6f7cee8e8 crosses #5686, which renamed six GameState fields to their legacy_ serde-migration names (post_replacement_{continuation,source,applied,event_source,event_target} -> legacy_*, pending_multi_draw -> legacy_pending_multi_draw) and added post_replacement_drains + draw_sequences. Update the exhaustive _gamestate_partition_is_total destructure (no '..', so a field-set mismatch is a hard E0027/E0559) to the new field names; the two new fields join the destructure so the cover-gate re-audit tripwire stays total. Soundness unchanged: draw_sequences is loop_equal-compared in GameState PartialEq; post_replacement_drains is skip_serializing_if=is_empty (settle-empty, loop-neutral). Assisted-by: ClaudeCode:claude-opus-4.8 * fix(PR-5672): separate shortcut proposer and winner * test(PR-5672): exercise split shortcut authority * fix(PR-5672): rebase game-state totality guard * fix(PR-5672): group shortcut offer inputs * fix(PR-5672): clarify shortcut authorities --------- Co-authored-by: matthewevans <matthewevans@users.noreply.github.com>
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ntindle
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Jul 13, 2026
…apped Destroy (phase-rs#5717) Merieke Ri Berit ("When ~ leaves the battlefield or becomes untapped, destroy that creature. It can't be regenerated.") failed to bind the trailing regeneration-denial rider to the Destroy effect nested inside its delayed trigger. The rider recognizer and its antecedent registry only looked for a top-level Destroy/DestroyAll, so the clause fell through to the standalone-clause handler instead, which spuriously built an unrelated static "can't be regenerated until end of turn" grant with no basis in the Oracle text, while the actual Destroy kept cant_regenerate: false. Note: the "leaves the battlefield or becomes untapped" OR-disjunction itself (originally the suspected root cause, from misparse-backlog category phase-rs#6) was verified independently to already be correct and is untouched by this change. Fixed by extending the existing CreateDelayedTrigger-unwrapping idiom (already used for CopySpell riders) to the DestroyLike antecedent class: a new recursive predicate/mutator pair, widened recognition and registry-population call sites, and a corrected apply-arm mutation. Confirmed via a 3-stage live-revert that all three edits are load- bearing (recognition alone: no-op; +registry: still silently no-ops; without the corrected apply-arm: panics instead of fixing). Scope confirmed via card-data query: exactly 3 cards share this CreateDelayedTrigger + can't-be-regenerated shape today. Gravebind and Whippoorwill's unrelated delayed triggers (upkeep draw, death-exile) correctly continue to produce their standalone grant, unaffected. Claude-Session: https://claude.ai/code/session_01XbgwGxbU9NHN9kou9isp8K Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com> Co-authored-by: matthewevans <matthewevans@users.noreply.github.com>
lgray
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…oop, current board only) ROUND-4 ADVERSARIAL REVIEW broke five more claims (Appendix B now has ten). RC-2 SURVIVED -- the reviewer could not break it and confirmed the full chain. New refutations, all measured: - B0/phase-rs#6: 'Combo B is ONE activation' is FALSE. drive_offline_kilo_freed_relic (corpus.rs:1556) takes TWO ActivateAbility actions; its comment: 'Relic has two mana abilities; the tap-self one would not fire Kilo's trigger.' The CR 605.3a nesting story is rules-legal but engine-false -- a mana ability in a ManaPayment window is still its own GameAction (engine.rs:4867). A single-action arming latch cannot capture it. - phase-rs#7: 'generalizing normalize_recast_frame lifts all 13 ObjectReentry rows' is FALSE -- it lifts ZERO. 6 rows are blocked by R6/RC-1/RC-3, not id churn; the other 7 need id-CANONICALIZATION, because stripping the churned object does not fix STABLE objects whose paired_with/attached_to point at the dead id (Deadeye Navigator never moves and still fails equality). Demoted from 'Phase 2.5 quick win' to P6, its own PR with its own soundness proof. - phase-rs#8: 'C3 is the arm no review broke' is FALSE -- ability_scan.rs:2454 sets sibling:true for ANY typed filter, so the predicate rejects Intruder Alarm, which is CR 732.2a's OWN worked example. - phase-rs#9: RC-1's 'measured trips, in order' is the wrong provenance -- board_covers runs first and returns false before the firewall is ever reached. - phase-rs#10: the Hum of the Radix fixture is UNSATISFIABLE ('each ARTIFACT spell'; Sprout Swarm is a green instant). The card is Damping Sphere. - 6 of 15 verification rows were VACUOUS, dominated by the ARMING gate. Arming (P1) is therefore a PREREQUISITE, not the last phase. Re-sequenced. - The 'Cryptolith Rite vs Earthcraft' crux pair was vacuous: Cryptolith + Squirrel Nest is NOT A LOOP AT ALL, so it declined for the wrong reason. Redesigned to hold the loop fixed and vary only the cost shape. - Corpus partition has THREE terminals (L-OFFER / L-AUTOWIN / WAIVED), and the bi-implication must fix the offline/live asymmetry UPWARD or it will pressure us into making the only game-ending path LESS sound. THE GOVERNING CONSTRAINT (user steer, now S4.6 and the spine of the plan): the player proposes a FIXED loop impactable only by the CURRENT board -- and we DRIVE that sequence on a clone. So every board ability that fires ALREADY LANDS IN DELTA. The firewall's only legitimate job is what the drive is structurally blind to: (1) monotone depletion outside the drive window -> C2 (2) a DISCONTINUITY (a threshold tripping later) -> C3 Everything else is measured: an effect that SCALES moves delta (C1); an effect that merely READS the growing axis yields constant delta and is HARMLESS -- which is exactly why today's predicate rejects the rulebook's own example. => C3 collapses from a REWRITE into a DELETION. The condition scan already exists at gate (4) (resource.rs:1524, inspects def.condition); the defect is gate (1) scanning EFFECTS. Delete gate (1), R3, R5, R6; narrow gate (4) to a Comparator against the growing axis. Deleting R6 alone is worth 2 corpus rows (Kiki-Jiki, Splinter Twin). New surface is now honestly TWO subsystems (P1 driver, P2 CR 113.6 predicate) + C2 -- not three. Assisted-by: ClaudeCode:claude-opus-4.8
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