refactor(engine): ambiguity gate covers the full cluster — batches 1-3, 585 pairs burned to zero

Port the July 7 gate-extender branch onto current master (the You-hub,
touch action bar, glass tab bar, Phase L, and hint-ghost work all landed
since) and finish batch 3. cluster_app now includes the mode, replay,
input, radial, tooltip, cursor, touch-selection, and safe-area plugins on
top of batches 1-2; the 585 ambiguous pairs the expansion exposed are
annotated down to zero and the gate stays assert_eq!(count, 0).

New ordering machinery:
- ReplayPlayback: playback driver chain on the pre-mutation spine
  (PointerInput < ReplayPlayback < overlay chain < GameMutation)
- ModeStart: mode-start handlers between the stats abandon-recorder and
  GameMutation; ChallengeCompletion < DailyCompletion < WeeklyGoalsEval
  pinned inside ProgressUpdate so `.after(ProgressUpdate)` readers see
  settled progress
- PointerInput: public set wrapping the input chain; AbandonRecord on the
  stats abandon-recorder; PendingHint around the async hint pipeline;
  HintGhostFx for the ghost chain (after the full visual spine)
- Clubs: MoveRequestWriters, WarningToastWriters join the existing
  request/toast writer clubs; UiTextFx grows the overlay/tooltip/safe-area
  chrome painters; SettingsAccess grows the lag-tolerant settings readers

Gate: cargo test --workspace green (993 engine tests), clippy
--all-targets -D warnings clean, rustfmt applied.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

solitaire_engine/src/achievement_plugin.rs

@@ -67,6 +67,16 @@ pub struct AchievementsResource(pub Vec<AchievementRecord>);
 #[derive(Resource, Debug, Clone)]
 pub struct AchievementsStoragePath(pub Option<PathBuf>);
 
+/// Set wrapping the win-path achievement evaluator. It writes
+/// `AchievementsResource`/`ProgressResource` and emits unlock events; UI
+/// readers of those (HUD popovers, the stats/achievements panels) order
+/// themselves `.after(AchievementEval)`. The replay-completion evaluator is
+/// deliberately NOT a member: it runs after `AutoComplete`, and panel chains
+/// that need `.after(AchievementEval)` run before `AutoComplete` — putting
+/// both in one set would close an ordering cycle (#143).
+#[derive(bevy::ecs::schedule::SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct AchievementEval;
+
 pub struct AchievementPlugin {
     pub storage_path: Option<PathBuf>,
 }
@@ -119,9 +129,13 @@ impl Plugin for AchievementPlugin {
             .add_systems(
                 Update,
                 evaluate_on_win
+                    .in_set(AchievementEval)
                     .after(GameMutation)
                     .after(StatsUpdate)
-                    .after(ProgressUpdate),
+                    .after(ProgressUpdate)
+                    // The unlock/XP/level-up events it emits are drained by
+                    // the toast pipeline this frame (#143).
+                    .before(crate::animation_plugin::AnimFx),
             )
             // Achievement-onboarding cue: fires once after the player's very
             // first win to teach the Achievements panel exists. Must run
@@ -131,20 +145,50 @@ impl Plugin for AchievementPlugin {
                 Update,
                 fire_achievement_onboarding_toast
                     .after(GameMutation)
-                    .after(StatsUpdate),
+                    .after(StatsUpdate)
+                    .in_set(crate::game_plugin::InfoToastWriters)
+                    .ambiguous_with(crate::game_plugin::InfoToastWriters)
+                    // Writes the one-shot onboarding flag into
+                    // SettingsResource: board painters re-read settings, so
+                    // land the write first; UiTextFx members read disjoint
+                    // settings fields (reduce-motion), so writer/reader
+                    // order there is provably irrelevant (#143).
+                    .before(crate::card_plugin::BoardVisuals)
+                    .ambiguous_with(crate::ui_theme::UiTextFx)
+                    .in_set(crate::settings_plugin::SettingsAccess)
+                    .ambiguous_with(crate::settings_plugin::SettingsAccess),
             )
             // Open/close/tab handling moved to `you_hub_plugin`
             // (Phase E) — this plugin now owns body content + scroll.
-            .add_systems(Update, scroll_achievements_panel)
             .add_systems(
                 Update,
-                crate::ui_modal::touch_scroll_panel::<AchievementsScrollable>,
+                scroll_achievements_panel
+                    .in_set(crate::ui_modal::PanelScroll)
+                    .ambiguous_with(crate::ui_modal::PanelScroll),
+            )
+            .add_systems(
+                Update,
+                crate::ui_modal::touch_scroll_panel::<AchievementsScrollable>
+                    .in_set(crate::ui_modal::PanelScroll)
+                    .ambiguous_with(crate::ui_modal::PanelScroll),
             )
             // Event-driven unlock: observe `ReplayPlaybackState` and unlock
             // `cinephile` the first time playback runs to natural completion.
             // Reads the resource via `Option<Res<_>>` so headless tests that
             // omit `ReplayPlaybackPlugin` still build.
-            .add_systems(Update, evaluate_cinephile_on_replay_completion);
+            .add_systems(
+                Update,
+                // Shares the unlock stream and AchievementsResource with
+                // evaluate_on_win; ordered after it and before the toast
+                // pipeline that drains the unlock events (#143).
+                evaluate_cinephile_on_replay_completion
+                    .after(evaluate_on_win)
+                    // The stats overlay's watch-replay button (ordered
+                    // before AutoComplete) writes ReplayPlaybackState this
+                    // system reads.
+                    .after(crate::auto_complete_plugin::AutoComplete)
+                    .before(crate::animation_plugin::AnimFx),
+            );
     }
 }
 

solitaire_engine/src/animation_plugin.rs

@@ -230,6 +230,14 @@ fn adopt_toasts_into_stack(
 /// Drives all linear card animations (`CardAnim`), toast notifications, deal stagger, win cascade, and the auto-complete card-slide sequence.
 pub struct AnimationPlugin;
 
+/// Set wrapping this plugin's Update chain (card slide/cascade animation and
+/// the toast pipeline). Ordered after [`crate::card_animation::CardTweenFx`]
+/// on the shared visual spine — members write card `Transform`s, which every
+/// other painter set also touches — and after the toast/stat/progress writer
+/// sets so the toast handlers drain this frame's events (#143).
+#[derive(bevy::ecs::schedule::SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct AnimFx;
+
 impl Plugin for AnimationPlugin {
     fn build(&self, app: &mut App) {
         // Register the events this plugin consumes so tests that don't include
@@ -253,12 +261,36 @@ impl Plugin for AnimationPlugin {
             .init_resource::<ToastQueue>()
             .init_resource::<ActiveToast>()
             .add_systems(Startup, (init_slide_duration, spawn_toast_stack_root))
+            .configure_sets(
+                Update,
+                AnimFx
+                    // Visual spine: …BoardVisuals < MarkerVisuals <
+                    // CardTweenFx < AnimFx < FeedbackFx (#143). GameMutation
+                    // ordering is inherited transitively.
+                    .after(crate::card_animation::CardTweenFx)
+                    .after(crate::table_plugin::MarkerVisuals)
+                    // Stats/progress must settle before the win/level-up
+                    // toast handlers read their events. (No edge against
+                    // InfoToastWriters: toast writers exist on both sides
+                    // of this set — enqueue_toasts drains via cursor and
+                    // joins the club instead; a toast surfacing one frame
+                    // later is invisible.)
+                    .after(crate::stats_plugin::StatsUpdate)
+                    .after(crate::progress_plugin::ProgressUpdate)
+                    .after(GameMutation)
+                    // HUD text pulses are disjoint from the card entities
+                    // this set animates (see UiTextFx × BoardVisuals, #143).
+                    .ambiguous_with(crate::ui_theme::UiTextFx),
+            )
             .add_systems(
                 Update,
                 (
                     advance_card_anims,
-                    sync_slide_duration,
-                    handle_win_cascade,
+                    // Both drain SettingsChangedEvent / read anim-speed
+                    // fields via cursor; a home deal-option edit surfacing
+                    // one frame later is invisible (#143).
+                    sync_slide_duration.ambiguous_with(crate::settings_plugin::SettingsAccess),
+                    handle_win_cascade.ambiguous_with(crate::settings_plugin::SettingsAccess),
                     handle_achievement_toast,
                     handle_levelup_toast,
                     handle_daily_goal_announcement_toast,
@@ -266,16 +298,23 @@ impl Plugin for AnimationPlugin {
                     handle_weekly_toast,
                     handle_time_attack_toast,
                     handle_challenge_toast,
-                    handle_settings_toast,
+                    handle_settings_toast.ambiguous_with(crate::settings_plugin::SettingsAccess),
                     handle_auto_complete_toast,
                     handle_xp_awarded_toast,
                     handle_move_rejected_toast,
                     handle_warning_toast,
                     tick_toasts,
-                    (enqueue_toasts, drive_toast_display).chain(),
+                    (
+                        enqueue_toasts
+                            .in_set(crate::game_plugin::InfoToastWriters)
+                            .ambiguous_with(crate::game_plugin::InfoToastWriters),
+                        drive_toast_display,
+                    )
+                        .chain(),
                     adopt_toasts_into_stack,
                 )
-                    .after(GameMutation),
+                    .chain()
+                    .in_set(AnimFx),
             );
     }
 }

solitaire_engine/src/card_animation/mod.rs

@@ -83,6 +83,14 @@ use tuning::update_input_platform;
 /// long as no single entity carries both `CardAnim` and `CardAnimation`.
 pub struct CardAnimationPlugin;
 
+/// Set wrapping this plugin's Update chain (curve tweens, hover/drag
+/// visuals). First anim stage on the visual spine: …BoardVisuals <
+/// MarkerVisuals < CardTweenFx < [`crate::animation_plugin::AnimFx`] <
+/// FeedbackFx — members write card `Transform`s, which every other painter
+/// set also touches (#143).
+#[derive(bevy::ecs::schedule::SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct CardTweenFx;
+
 impl Plugin for CardAnimationPlugin {
     fn build(&self, app: &mut App) {
         // Register events and resources idempotently — double-registration is
@@ -115,7 +123,14 @@ impl Plugin for CardAnimationPlugin {
                     // still present in the same frame it was removed (deferred
                     // commands aren't applied until the next ApplyDeferred
                     // point), causing a 1-frame gap between every chain step.
-                    ApplyDeferred,
+                    //
+                    // `ambiguous_with_all`: an explicit sync point conflicts
+                    // (on `World`) with every unordered system in the
+                    // schedule. Only the flush of THIS chain's commands needs
+                    // ordering — the chain edges provide that; whether an
+                    // unrelated system's commands flush here or at the next
+                    // sync point is immaterial to it (#143).
+                    ApplyDeferred.ambiguous_with_all(),
                     // After each animation finishes, pop the next chain segment.
                     advance_animation_chains,
                     // Interaction visuals (run after animation for final positions).
@@ -123,10 +138,24 @@ impl Plugin for CardAnimationPlugin {
                     apply_hover_scale,
                     apply_drag_visual,
                     // Drain buffered inputs only when no animations remain.
-                    drain_input_buffer,
+                    // It re-emits buffered undo/new-game requests, so it
+                    // joins the self-ambiguous writer clubs (#143).
+                    drain_input_buffer
+                        .in_set(crate::game_plugin::UndoRequestWriters)
+                        .ambiguous_with(crate::game_plugin::UndoRequestWriters),
                 )
                     .chain()
-                    .after(GameMutation),
+                    .in_set(CardTweenFx),
+            )
+            .configure_sets(
+                Update,
+                CardTweenFx
+                    .after(GameMutation)
+                    .after(crate::table_plugin::MarkerVisuals)
+                    // HUD text pulses touch Transform on UI entities only —
+                    // disjoint from the card entities this set animates
+                    // (same rationale as UiTextFx × BoardVisuals, #143).
+                    .ambiguous_with(crate::ui_theme::UiTextFx),
             );
     }
 }

solitaire_engine/src/card_plugin/mod.rs

@@ -592,7 +592,9 @@ impl Plugin for CardPlugin {
                     tick_right_click_highlights,
                     clear_right_click_highlights_on_state_change,
                     clear_right_click_highlights_on_pause,
-                    tick_hint_highlight,
+                    // Reads only the anim-speed/reduce-motion flags; a frame
+                    // of lag is invisible (#143).
+                    tick_hint_highlight.ambiguous_with(crate::settings_plugin::SettingsAccess),
                     update_stock_empty_indicator,
                     update_stock_count_badge.run_if(resource_changed::<GameStateResource>),
                     collect_resize_events,

solitaire_engine/src/challenge_plugin.rs

@@ -11,8 +11,7 @@ use solitaire_data::{challenge_count, challenge_seed_for, save_progress_to};
 use crate::events::{
     GameWonEvent, InfoToastEvent, NewGameRequestEvent, StartChallengeRequestEvent,
 };
-use crate::game_plugin::GameMutation;
-use crate::progress_plugin::{ProgressResource, ProgressStoragePath, ProgressUpdate};
+use crate::progress_plugin::{ProgressResource, ProgressStoragePath};
 use crate::resources::GameStateResource;
 
 /// Minimum player level required to start a Challenge run.
@@ -38,8 +37,28 @@ impl Plugin for ChallengePlugin {
             .add_message::<StartChallengeRequestEvent>()
             .add_message::<InfoToastEvent>()
             // Run after ProgressUpdate so we don't fight ProgressPlugin's add_xp.
-            .add_systems(Update, advance_on_challenge_win.after(ProgressUpdate))
-            .add_systems(Update, handle_start_challenge_request.before(GameMutation));
+            // Ordering comes from the mode-completion chain configured in
+            // progress_plugin; the toast it emits joins the writer club
+            // drained by the toast pipeline this frame (#143).
+            .add_systems(
+                Update,
+                advance_on_challenge_win
+                    .in_set(crate::progress_plugin::ChallengeCompletion)
+                    .in_set(crate::game_plugin::InfoToastWriters)
+                    .ambiguous_with(crate::game_plugin::InfoToastWriters),
+            )
+            // ModeStart places it between the stats abandon-recorder and
+            // GameMutation; it shares the new-game request/toast streams
+            // with the other writers (#143).
+            .add_systems(
+                Update,
+                handle_start_challenge_request
+                    .in_set(crate::game_plugin::ModeStart)
+                    .in_set(crate::game_plugin::NewGameRequestWriters)
+                    .ambiguous_with(crate::game_plugin::NewGameRequestWriters)
+                    .in_set(crate::game_plugin::InfoToastWriters)
+                    .ambiguous_with(crate::game_plugin::InfoToastWriters),
+            );
     }
 }
 

solitaire_engine/src/cursor_plugin.rs

@@ -76,12 +76,31 @@ pub struct CursorPlugin;
 
 impl Plugin for CursorPlugin {
     fn build(&self, app: &mut App) {
+        // All three read the DragState/game state the input chain and
+        // mutation systems settle, so they run after both. The highlight
+        // painters write card/overlay Sprites and join the visual spine
+        // ahead of the board painters; the cursor icon touches only the
+        // window cursor (#143).
         app.add_systems(
             Update,
             (
-                update_cursor_icon,
-                update_drop_highlights.run_if(resource_changed::<DragState>),
-                update_drop_target_overlays,
+                update_cursor_icon
+                    .after(crate::input_plugin::PointerInput)
+                    .after(crate::game_plugin::GameMutation)
+                    .after(crate::selection_plugin::SelectionFx)
+                    .before(crate::card_plugin::BoardVisuals),
+                (
+                    update_drop_highlights.run_if(resource_changed::<DragState>),
+                    update_drop_target_overlays,
+                )
+                    .chain()
+                    .after(crate::input_plugin::PointerInput)
+                    .after(crate::game_plugin::GameMutation)
+                    // Selection maintenance clears DragState and the hint
+                    // poll writes highlight sprites — both settle first.
+                    .after(crate::selection_plugin::SelectionFx)
+                    .after(crate::pending_hint::PendingHint)
+                    .before(crate::card_plugin::BoardVisuals),
             ),
         );
     }

solitaire_engine/src/daily_challenge_plugin.rs

@@ -24,8 +24,8 @@ use crate::events::{
     GameWonEvent, InfoToastEvent, NewGameRequestEvent, StartDailyChallengeRequestEvent,
     WarningToastEvent, XpAwardedEvent,
 };
-use crate::game_plugin::GameMutation;
-use crate::progress_plugin::{ProgressResource, ProgressStoragePath, ProgressUpdate};
+
+use crate::progress_plugin::{ProgressResource, ProgressStoragePath};
 use crate::resources::GameStateResource;
 #[cfg(not(target_arch = "wasm32"))]
 use crate::sync_plugin::SyncProviderResource;
@@ -124,17 +124,51 @@ impl Plugin for DailyChallengePlugin {
             .add_message::<StartDailyChallengeRequestEvent>()
             .add_message::<WarningToastEvent>()
             .add_message::<XpAwardedEvent>()
-            // record/award after the base ProgressUpdate so we don't fight
-            // ProgressPlugin's add_xp on the same frame.
-            .add_systems(Update, handle_daily_completion.after(ProgressUpdate))
-            .add_systems(Update, handle_start_daily_request.before(GameMutation))
-            .add_systems(Update, check_daily_expiry_warning)
-            .add_systems(Update, check_date_rollover);
+            // Ordering comes from the mode-completion chain configured in
+            // progress_plugin; the toast it emits joins the writer club
+            // drained by the toast pipeline this frame (#143).
+            .add_systems(
+                Update,
+                handle_daily_completion
+                    .in_set(crate::progress_plugin::DailyCompletion)
+                    .in_set(crate::game_plugin::InfoToastWriters)
+                    .ambiguous_with(crate::game_plugin::InfoToastWriters),
+            )
+            // ModeStart places it between the stats abandon-recorder and
+            // GameMutation; it shares the new-game request/toast streams
+            // with the other writers (#143).
+            .add_systems(
+                Update,
+                handle_start_daily_request
+                    .in_set(crate::game_plugin::ModeStart)
+                    .in_set(crate::game_plugin::NewGameRequestWriters)
+                    .ambiguous_with(crate::game_plugin::NewGameRequestWriters)
+                    .in_set(crate::game_plugin::InfoToastWriters)
+                    .ambiguous_with(crate::game_plugin::InfoToastWriters),
+            )
+            // One chain for the DailyChallengeResource writers/readers:
+            // the local date rollover replaces today's challenge and the
+            // expiry warning reads it. Before ModeStart so a rollover
+            // lands before the start handler reads the seed this frame
+            // (#143).
+            .add_systems(
+                Update,
+                (
+                    check_date_rollover,
+                    check_daily_expiry_warning
+                        .in_set(crate::game_plugin::WarningToastWriters)
+                        .ambiguous_with(crate::game_plugin::WarningToastWriters),
+                )
+                    .chain()
+                    .before(crate::game_plugin::ModeStart),
+            );
 
         // Server-challenge fetch uses SyncProviderResource (reqwest), not available on wasm.
+        // The poll replaces DailyChallengeResource, so it heads the same
+        // pre-ModeStart timeline as the rollover/expiry chain above (#143).
         #[cfg(not(target_arch = "wasm32"))]
         app.add_systems(Startup, fetch_server_challenge)
-            .add_systems(Update, poll_server_challenge);
+            .add_systems(Update, poll_server_challenge.before(check_date_rollover));
     }
 }
 

solitaire_engine/src/difficulty_plugin.rs

@@ -21,7 +21,6 @@ use solitaire_core::game_state::{DifficultyLevel, GameMode};
 use solitaire_data::difficulty_seeds::seeds_for;
 
 use crate::events::{NewGameRequestEvent, StartDifficultyRequestEvent};
-use crate::game_plugin::GameMutation;
 
 // ---------------------------------------------------------------------------
 // Resources
@@ -77,7 +76,16 @@ impl Plugin for DifficultyPlugin {
         app.init_resource::<DifficultyIndexResource>()
             .add_message::<StartDifficultyRequestEvent>()
             .add_message::<NewGameRequestEvent>()
-            .add_systems(Update, handle_difficulty_request.before(GameMutation));
+            // ModeStart places it between the stats abandon-recorder and
+            // GameMutation; it shares the new-game request stream with the
+            // other writers (#143).
+            .add_systems(
+                Update,
+                handle_difficulty_request
+                    .in_set(crate::game_plugin::ModeStart)
+                    .in_set(crate::game_plugin::NewGameRequestWriters)
+                    .ambiguous_with(crate::game_plugin::NewGameRequestWriters),
+            );
     }
 }
 

solitaire_engine/src/feedback_anim_plugin.rs

@@ -198,6 +198,22 @@ pub fn deal_stagger_jitter(card_id: u32) -> f32 {
 /// animation systems.
 pub struct FeedbackAnimPlugin;
 
+/// Set wrapping the shake/settle/deal/flourish systems. Last anim stage on
+/// the visual spine: …MarkerVisuals < CardTweenFx <
+/// [`crate::animation_plugin::AnimFx`] < FeedbackFx. Runs after
+/// MarkerVisuals because the foundation flourish tints pile-marker sprites,
+/// which the marker painters also write; the tint must win within the frame
+/// (#143). GameMutation ordering is inherited transitively.
+#[derive(bevy::ecs::schedule::SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct FeedbackFx;
+
+/// Set wrapping the hint-ghost chain (spawn → tick → despawn). Ghost
+/// entities are `Without<CardEntity>` sprites owned solely by this chain —
+/// systems that animate other entity domains (e.g. the win-summary camera
+/// shake) declare themselves `.ambiguous_with(HintGhostFx)` (#143).
+#[derive(bevy::ecs::schedule::SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct HintGhostFx;
+
 impl Plugin for FeedbackAnimPlugin {
     fn build(&self, app: &mut App) {
         // Register the events this plugin consumes so it can run in isolation
@@ -211,22 +227,36 @@ impl Plugin for FeedbackAnimPlugin {
             .add_message::<HintVisualEvent>()
             .add_message::<StateChangedEvent>()
             .add_message::<RequestRedraw>()
+            .configure_sets(
+                Update,
+                FeedbackFx
+                    .after(GameMutation)
+                    .after(crate::animation_plugin::AnimFx)
+                    // HUD text pulses are disjoint from the card/marker
+                    // entities this set animates (see UiTextFx ×
+                    // BoardVisuals, #143).
+                    .ambiguous_with(crate::ui_theme::UiTextFx),
+            )
             .add_systems(
                 Update,
                 (
-                    start_shake_anim.after(GameMutation),
+                    // Reads only the reduce-motion flag; a frame of lag is
+                    // invisible (#143).
+                    start_shake_anim.ambiguous_with(crate::settings_plugin::SettingsAccess),
                     tick_shake_anim,
-                    start_settle_anim.after(GameMutation),
+                    start_settle_anim,
                     // tick_foundation_flourish writes the full Transform.scale
                     // (Vec3); tick_settle_anim writes only scale.y on top of
                     // it. Ordering ensures the settle's y-only write always
                     // applies last so it wins on the ~0.15 s overlap when both
                     // components are present on the same King entity.
-                    tick_foundation_flourish.before(tick_settle_anim),
+                    tick_foundation_flourish,
                     tick_settle_anim,
-                    start_deal_anim.after(GameMutation),
-                    start_foundation_flourish.after(GameMutation),
-                ),
+                    start_deal_anim,
+                    start_foundation_flourish,
+                )
+                    .chain()
+                    .in_set(FeedbackFx),
             )
             // Hint ghost (Phase H): the spawn reads card Transform/Sprite,
             // so it orders after the board painters; the tick only touches
@@ -240,7 +270,24 @@ impl Plugin for FeedbackAnimPlugin {
                     tick_hint_ghosts,
                     despawn_hint_ghosts_on_state_change.after(GameMutation),
                 )
-                    .chain(),
+                    .chain()
+                    .in_set(HintGhostFx)
+                    // The spawn reads card Sprites the marker painters (theme
+                    // apply, pile highlights) also write — those settle first.
+                    // Ghost entities are Without<CardEntity> and never HUD
+                    // chrome, and the spawn reads only the reduce-motion flag
+                    // (frame-lag invisible) (#143).
+                    .after(crate::table_plugin::MarkerVisuals)
+                    // …and the card tweens/slides, whose Transform writes
+                    // the spawn snapshot must not race.
+                    .after(crate::card_animation::CardTweenFx)
+                    // FeedbackFx (deal slide, shake) is the last Transform
+                    // writer on the spine — the ghost snapshot reads after
+                    // the whole visual pipeline has settled.
+                    .after(FeedbackFx)
+                    .ambiguous_with(crate::ui_theme::UiTextFx)
+                    .in_set(crate::settings_plugin::SettingsAccess)
+                    .ambiguous_with(crate::settings_plugin::SettingsAccess),
             );
     }
 }

solitaire_engine/src/game_plugin/mod.rs

@@ -99,6 +99,38 @@ pub struct DrawRequestWriters;
 #[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
 pub struct InfoToastWriters;
 
+/// Self-ambiguous club for writers of `MoveRequestEvent` (drag drops, stock
+/// clicks, radial menu, selection keys, replay step button). Consumers drain
+/// the whole queue — append order is meaningless (#143). Same rules as
+/// [`NewGameRequestWriters`]: do NOT hang ordering edges off this set.
+#[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct MoveRequestWriters;
+
+/// Self-ambiguous club for writers of `WarningToastEvent` (daily-expiry
+/// warning, leaderboard opt-in/out failure polls). The toast pipeline
+/// drains the whole queue — append order is meaningless (#143). Same
+/// rules as [`InfoToastWriters`].
+#[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct WarningToastWriters;
+
+/// Set + self-ambiguous club for the mode-start request handlers (challenge,
+/// daily, time-attack, play-by-seed, difficulty). Each drains its own
+/// request stream and resets `GameStateResource` for its mode; only one
+/// stream carries an event on any real frame, so member order is irrelevant
+/// (club), while the set as a whole runs between the stats abandon-recorder
+/// ([`crate::stats_plugin::AbandonRecord`], which must read the old game
+/// first) and [`GameMutation`] (#143).
+#[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct ModeStart;
+
+/// Set wrapping `GamePlugin`'s pre-mutation game-state spine (elapsed-time
+/// tick, settings sync, restore prompt). Sits between
+/// [`crate::settings_plugin::SettingsMutation`] and [`GameMutation`]; other
+/// pre-mutation readers of `GameStateResource` (e.g. the stats
+/// abandon-recorder) order themselves `.after(PreMutation)` (#143).
+#[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct PreMutation;
+
 /// Persistence path for the in-progress game state file. `None` disables I/O.
 #[derive(Resource, Debug, Clone)]
 pub struct GameStatePath(pub Option<PathBuf>);
@@ -267,7 +299,14 @@ impl Plugin for GamePlugin {
                     .in_set(InfoToastWriters)
                     .ambiguous_with(InfoToastWriters),
             )
-            .add_systems(Update, record_replay_on_win.after(GameMutation))
+            .add_systems(
+                Update,
+                record_replay_on_win
+                    .after(GameMutation)
+                    // Before the playback skip-recorder (which runs after
+                    // AutoComplete) — both touch RecordingReplay (#143).
+                    .before(crate::auto_complete_plugin::AutoComplete),
+            )
             .add_systems(
                 Update,
                 (
@@ -301,9 +340,20 @@ impl Plugin for GamePlugin {
                         .ambiguous_with(NewGameRequestWriters),
                 )
                     .chain()
+                    .in_set(PreMutation),
+            )
+            .configure_sets(
+                Update,
+                PreMutation
                     .after(crate::settings_plugin::SettingsMutation)
                     .before(GameMutation),
             )
+            .configure_sets(
+                Update,
+                ModeStart
+                    .after(crate::stats_plugin::AbandonRecord)
+                    .before(GameMutation),
+            )
             .init_resource::<AutoSaveTimer>()
             .add_systems(Update, auto_save_game_state.after(GameMutation))
             .add_systems(Last, save_game_state_on_exit);

solitaire_engine/src/help_plugin.rs

@@ -54,12 +54,23 @@ impl Plugin for HelpPlugin {
             .add_message::<TouchInput>()
             .add_systems(
                 Update,
-                (
-                    toggle_help_screen,
-                    handle_help_close_button,
-                    scroll_help_panel,
-                    crate::ui_modal::touch_scroll_panel::<HelpScrollable>,
-                ),
+                (toggle_help_screen, handle_help_close_button)
+                    .chain()
+                    // FocusKeys consumes Esc after the modal handlers
+                    // (mirrors toggle_settings_screen, #143).
+                    .before(crate::ui_focus::FocusKeys),
+            )
+            .add_systems(
+                Update,
+                scroll_help_panel
+                    .in_set(crate::ui_modal::PanelScroll)
+                    .ambiguous_with(crate::ui_modal::PanelScroll),
+            )
+            .add_systems(
+                Update,
+                crate::ui_modal::touch_scroll_panel::<HelpScrollable>
+                    .in_set(crate::ui_modal::PanelScroll)
+                    .ambiguous_with(crate::ui_modal::PanelScroll),
             );
     }
 }

solitaire_engine/src/home_plugin.rs

@@ -334,19 +334,45 @@ impl Plugin for HomePlugin {
                     spawn_home_on_launch,
                     toggle_home_screen,
                     attach_focusable_to_home_mode_cards,
-                    handle_home_card_click,
-                    handle_home_new_game_hero,
+                    handle_home_card_click
+                        .in_set(crate::game_plugin::NewGameRequestWriters)
+                        .ambiguous_with(crate::game_plugin::NewGameRequestWriters)
+                        .in_set(crate::game_plugin::InfoToastWriters)
+                        .ambiguous_with(crate::game_plugin::InfoToastWriters),
+                    handle_home_new_game_hero
+                        .in_set(crate::game_plugin::NewGameRequestWriters)
+                        .ambiguous_with(crate::game_plugin::NewGameRequestWriters),
                     handle_home_cancel_button,
-                    handle_home_profile_chip,
+                    handle_home_profile_chip
+                        .in_set(crate::profile_plugin::ProfileToggleWriters)
+                        .ambiguous_with(crate::profile_plugin::ProfileToggleWriters),
                     handle_home_draw_mode_buttons,
                     handle_home_winnable_toggle,
                     handle_home_deal_options_toggle,
-                    handle_home_difficulty_chip_click,
-                    handle_home_digit_keys,
+                    handle_home_difficulty_chip_click
+                        .in_set(crate::game_plugin::NewGameRequestWriters)
+                        .ambiguous_with(crate::game_plugin::NewGameRequestWriters),
+                    handle_home_digit_keys
+                        .in_set(crate::game_plugin::NewGameRequestWriters)
+                        .ambiguous_with(crate::game_plugin::NewGameRequestWriters)
+                        .before(crate::ui_focus::FocusKeys),
                 )
-                    .chain(),
+                    .chain()
+                    // The home context repaints from this frame's settled
+                    // progress/stats/achievements; settings access joins the
+                    // screen-plugin club (#143).
+                    .after(crate::progress_plugin::ProgressUpdate)
+                    .after(crate::stats_plugin::StatsUpdate)
+                    .after(crate::achievement_plugin::AchievementEval)
+                    .in_set(crate::settings_plugin::SettingsAccess)
+                    .ambiguous_with(crate::settings_plugin::SettingsAccess),
             )
-            .add_systems(Update, scroll_home_panel);
+            .add_systems(
+                Update,
+                scroll_home_panel
+                    .in_set(crate::ui_modal::PanelScroll)
+                    .ambiguous_with(crate::ui_modal::PanelScroll),
+            );
     }
 }
 

solitaire_engine/src/hud_plugin/mod.rs

@@ -517,13 +517,31 @@ impl Plugin for HudPlugin {
                 Update,
                 (restore_hud_on_modal, apply_hud_visibility)
                     .chain()
-                    .before(LayoutSystem::UpdateOnResize),
+                    .before(LayoutSystem::UpdateOnResize)
+                    // Toggles Visibility on HUD chrome roots only — joins
+                    // the chrome club (#143).
+                    .in_set(UiTextFx)
+                    .ambiguous_with(UiTextFx),
             )
             .add_systems(
                 Update,
                 (
-                    update_hud_avatar.after(crate::settings_plugin::SettingsMutation),
-                    handle_avatar_button.ambiguous_with(HudButtons),
+                    update_hud_avatar
+                        // Same-frame-exact after the settings spine, so NOT
+                        // a SettingsAccess member — but the club's readers
+                        // and the home deal-option writers touch settings
+                        // fields the avatar never reads (#143).
+                        .ambiguous_with(crate::settings_plugin::SettingsAccess)
+                        .after(crate::settings_plugin::SettingsMutation)
+                        // Two more settings writers arrived with the wider
+                        // ambiguity cluster: the pause overlay's draw-mode
+                        // toggle and the achievement onboarding flag (#143).
+                        .after(crate::pause_plugin::PauseMutation)
+                        .after(crate::game_plugin::InfoToastWriters),
+                    handle_avatar_button
+                        .ambiguous_with(HudButtons)
+                        .in_set(crate::profile_plugin::ProfileToggleWriters)
+                        .ambiguous_with(crate::profile_plugin::ProfileToggleWriters),
                 ),
             )
             .add_systems(
@@ -538,7 +556,11 @@ impl Plugin for HudPlugin {
             // the board painters that resize card/label text (#143).
             .add_systems(
                 Update,
-                update_hud_typography.after(crate::card_plugin::BoardVisuals),
+                update_hud_typography
+                    .after(crate::card_plugin::BoardVisuals)
+                    // Writes HUD TextFont only — chrome club (#143).
+                    .in_set(UiTextFx)
+                    .ambiguous_with(UiTextFx),
             )
             .add_systems(
                 Update,
@@ -551,16 +573,26 @@ impl Plugin for HudPlugin {
                     .after(GameMutation)
                     .in_set(UiTextFx)
                     .ambiguous_with(UiTextFx)
-                    .ambiguous_with(crate::card_plugin::BoardVisuals),
+                    .ambiguous_with(crate::card_plugin::BoardVisuals)
+                    // Reads only the reduce-motion flag; a frame of lag is
+                    // invisible (#143).
+                    .in_set(crate::settings_plugin::SettingsAccess)
+                    .ambiguous_with(crate::settings_plugin::SettingsAccess),
             )
             .add_systems(
                 Update,
                 (start_streak_flourish, advance_streak_flourish)
                     .chain()
                     .after(GameMutation)
+                    // Reads the streak-milestone events StatsUpdate emits.
+                    .after(crate::stats_plugin::StatsUpdate)
                     .in_set(UiTextFx)
                     .ambiguous_with(UiTextFx)
-                    .ambiguous_with(crate::card_plugin::BoardVisuals),
+                    .ambiguous_with(crate::card_plugin::BoardVisuals)
+                    // Reads only the reduce-motion flag; a frame of lag is
+                    // invisible (#143).
+                    .in_set(crate::settings_plugin::SettingsAccess)
+                    .ambiguous_with(crate::settings_plugin::SettingsAccess),
             )
             .add_systems(
                 Update,
@@ -584,16 +616,28 @@ impl Plugin for HudPlugin {
                     handle_help_button,
                     handle_hint_button
                         .after(GameMutation)
+                        // A press cancels/spawns the solver task before
+                        // this frame's drop/poll pass (#143).
+                        .before(crate::pending_hint::PendingHint)
                         .in_set(crate::game_plugin::InfoToastWriters)
                         .ambiguous_with(crate::game_plugin::InfoToastWriters),
-                    handle_modes_button,
+                    // The modes/menu popovers repaint the player level from
+                    // ProgressResource — read it after this frame's XP award
+                    // settles (#143).
+                    handle_modes_button
+                        .after(crate::progress_plugin::ProgressUpdate)
+                        .after(crate::achievement_plugin::AchievementEval),
                     handle_mode_option_click
                         .in_set(NewGameRequestWriters)
                         .ambiguous_with(NewGameRequestWriters),
                     handle_modes_backdrop_click,
                     close_modes_popover_on_escape,
                     handle_menu_button,
-                    handle_menu_option_click,
+                    handle_menu_option_click
+                        .after(crate::progress_plugin::ProgressUpdate)
+                        .after(crate::achievement_plugin::AchievementEval)
+                        .in_set(crate::profile_plugin::ProfileToggleWriters)
+                        .ambiguous_with(crate::profile_plugin::ProfileToggleWriters),
                     handle_menu_backdrop_click,
                     close_menu_popover_on_escape,
                     paint_action_buttons,
@@ -602,8 +646,18 @@ impl Plugin for HudPlugin {
                     // Writes tab-label TextColor and reads TextFont — entity-
                     // disjoint from the UiTextFx readout writers (tab labels
                     // vs HUD readouts), which Bevy can't prove, so declare it.
-                    animate_tab_expansion.ambiguous_with(UiTextFx),
-                    duck_tab_bar_during_drag,
+                    animate_tab_expansion
+                        .ambiguous_with(UiTextFx)
+                        // Tab-label fonts are never card/corner-label fonts.
+                        .ambiguous_with(crate::card_plugin::BoardVisuals)
+                        // Reads only reduce-motion; a frame of lag is
+                        // invisible, so it joins the settings-reader club.
+                        .in_set(crate::settings_plugin::SettingsAccess)
+                        .ambiguous_with(crate::settings_plugin::SettingsAccess),
+                    // Reads only reduce-motion — settings-reader club (#143).
+                    duck_tab_bar_during_drag
+                        .in_set(crate::settings_plugin::SettingsAccess)
+                        .ambiguous_with(crate::settings_plugin::SettingsAccess),
                 )
                     .chain()
                     .in_set(HudButtons)

solitaire_engine/src/input_plugin/mod.rs

@@ -58,6 +58,14 @@ use crate::touch_selection_plugin::TouchSelectionState;
 use crate::ui_theme::{MOTION_DRAG_REJECT_SECS, STATE_SUCCESS, STATE_WARNING};
 use solitaire_core::DrawStockConfig;
 
+/// Set wrapping the core pointer/keyboard input chain (clicks, drags, touch,
+/// hotkeys). Runs between [`crate::game_plugin::PreMutation`] (it reads the
+/// ticked game state) and [`crate::selection_plugin::SelectionKeySet`] (the
+/// selection keys check `DragState::is_idle`); request events it emits are
+/// consumed at `GameMutation` in the same frame (#143).
+#[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct PointerInput;
+
 /// System-set labels used to anchor external systems relative to the touch
 /// drag pipeline without duplicating the internal chain ordering.
 #[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
@@ -143,7 +151,13 @@ impl Plugin for InputPlugin {
                     // `.chain()` still orders them relative to each other.
                     handle_keyboard_core
                         .in_set(crate::game_plugin::DrawRequestWriters)
-                        .ambiguous_with(crate::game_plugin::DrawRequestWriters),
+                        .ambiguous_with(crate::game_plugin::DrawRequestWriters)
+                        // N/Z/X/… and U also feed the shared new-game and
+                        // undo request streams (#143).
+                        .in_set(crate::game_plugin::NewGameRequestWriters)
+                        .ambiguous_with(crate::game_plugin::NewGameRequestWriters)
+                        .in_set(crate::game_plugin::UndoRequestWriters)
+                        .ambiguous_with(crate::game_plugin::UndoRequestWriters),
                     handle_keyboard_hint,
                     handle_keyboard_forfeit,
                     handle_stock_click
@@ -159,29 +173,61 @@ impl Plugin for InputPlugin {
                     end_drag.before(GameMutation),
                     // Touch drag pipeline (parallel path through DragState).
                     touch_start_drag.in_set(TouchDragSet::AfterStartDrag),
-                    touch_follow_drag,
+                    // Moves the dragged card's Transform; UiTextFx members
+                    // animate chrome entities only — disjoint domains Bevy
+                    // can't prove (#143).
+                    touch_follow_drag.ambiguous_with(crate::ui_theme::UiTextFx),
                     handle_double_tap, // before touch_end_drag: reads drag state pre-clear
                     touch_end_drag
                         .after(TouchDragSet::BeforeEndDrag)
                         .before(GameMutation),
+                    // Reads StateChangedEvent via cursor — a reset one frame
+                    // after the mutation is invisible (the cycle index only
+                    // matters on the next H press), so it rides at the end
+                    // of the input chain instead of chasing every
+                    // StateChanged writer (#143).
+                    // It also drains the new-game request stream via its own
+                    // cursor, so it joins the writer club the same way
+                    // enqueue_toasts does (#143).
+                    reset_hint_cycle_on_state_change
+                        .in_set(crate::game_plugin::NewGameRequestWriters)
+                        .ambiguous_with(crate::game_plugin::NewGameRequestWriters),
                 )
-                    .chain(),
+                    .chain()
+                    .in_set(PointerInput),
             )
-            .add_systems(Update, reset_hint_cycle_on_state_change);
+            .configure_sets(
+                Update,
+                PointerInput
+                    .after(crate::game_plugin::PreMutation)
+                    .before(crate::selection_plugin::SelectionKeySet)
+                    .before(crate::ui_focus::FocusKeys),
+            );
         // F11 fullscreen toggle is desktop-only; Android windows are always full-screen.
+        // It writes only `Window.mode`; no system reads the mode, and the
+        // geometry change it triggers arrives via WindowResized events on a
+        // later frame — order against Window readers is provably irrelevant
+        // (#143).
         #[cfg(not(target_os = "android"))]
-        app.add_systems(Update, handle_fullscreen);
+        app.add_systems(Update, handle_fullscreen.ambiguous_with_all());
         app
             // Async hint pipeline: state-change drop runs before the
             // poll system so a move applied this frame cancels any
-            // in-flight task before its result can be surfaced.
+            // in-flight task before its result can be surfaced. The poll
+            // emits the hint toast and the pile-highlight event the board
+            // painters consume this frame (#143).
             .add_systems(
                 Update,
                 (
                     crate::pending_hint::drop_pending_hint_on_state_change,
-                    crate::pending_hint::poll_pending_hint_task,
+                    crate::pending_hint::poll_pending_hint_task
+                        .in_set(crate::game_plugin::InfoToastWriters)
+                        .ambiguous_with(crate::game_plugin::InfoToastWriters),
                 )
-                    .chain(),
+                    .chain()
+                    .in_set(crate::pending_hint::PendingHint)
+                    .after(GameMutation)
+                    .before(crate::auto_complete_plugin::AutoComplete),
             );
     }
 }

solitaire_engine/src/leaderboard_plugin.rs

@@ -158,18 +158,38 @@ impl Plugin for LeaderboardPlugin {
                     poll_leaderboard_fetch,
                     update_leaderboard_panel,
                     handle_opt_in_button,
-                    poll_opt_in_task,
+                    // The polls share the warning-toast stream with the
+                    // daily-expiry check (drained wholesale, #143).
+                    poll_opt_in_task
+                        .in_set(crate::game_plugin::WarningToastWriters)
+                        .ambiguous_with(crate::game_plugin::WarningToastWriters),
                     handle_opt_out_button,
-                    poll_opt_out_task,
+                    poll_opt_out_task
+                        .in_set(crate::game_plugin::WarningToastWriters)
+                        .ambiguous_with(crate::game_plugin::WarningToastWriters),
                     handle_set_display_name_button,
                     handle_display_name_text_input,
                     handle_display_name_confirm,
                     handle_display_name_cancel,
-                    update_leaderboard_public_name_label,
+                    // Writes one marker-filtered Text label — disjoint from
+                    // the HUD/stats text painters (UiTextFx club, #143).
+                    update_leaderboard_public_name_label
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
                 )
-                    .chain(),
+                    .chain()
+                    // Opt-in state and display name live in
+                    // SettingsResource — the whole chain joins the
+                    // screen-plugin settings club (#143).
+                    .in_set(crate::settings_plugin::SettingsAccess)
+                    .ambiguous_with(crate::settings_plugin::SettingsAccess),
             )
-            .add_systems(Update, scroll_leaderboard_panel);
+            .add_systems(
+                Update,
+                scroll_leaderboard_panel
+                    .in_set(crate::ui_modal::PanelScroll)
+                    .ambiguous_with(crate::ui_modal::PanelScroll),
+            );
     }
 }
 

solitaire_engine/src/onboarding_plugin.rs

@@ -98,12 +98,26 @@ pub struct OnboardingPlugin;
 
 impl Plugin for OnboardingPlugin {
     fn build(&self, app: &mut App) {
-        app.init_resource::<OnboardingSlideIndex>()
-            .add_systems(Update, spawn_if_first_run)
-            .add_systems(
-                Update,
-                (handle_onboarding_buttons, handle_onboarding_keyboard).chain(),
-            );
+        app.init_resource::<OnboardingSlideIndex>().add_systems(
+            Update,
+            // One chain: all three touch the slide index and the
+            // first-run flag in SettingsResource. Club membership
+            // declares the settings access disjoint from the other
+            // screen plugins'; the keyboard handler runs before
+            // FocusKeys like every other Esc consumer (#143).
+            (
+                spawn_if_first_run,
+                handle_onboarding_buttons,
+                handle_onboarding_keyboard.before(crate::ui_focus::FocusKeys),
+            )
+                .chain()
+                // Before the settings spine: the first-run flag write
+                // lands before every same-frame settings reader (they
+                // all sit at or after SettingsMutation transitively).
+                .before(crate::settings_plugin::SettingsMutation)
+                .in_set(crate::settings_plugin::SettingsAccess)
+                .ambiguous_with(crate::settings_plugin::SettingsAccess),
+        );
     }
 }
 

solitaire_engine/src/pause_plugin.rs

@@ -104,6 +104,15 @@ pub fn draw_mode_label(mode: DrawStockConfig) -> &'static str {
 /// to disk, and routes the Forfeit confirm-modal flow.
 pub struct PausePlugin;
 
+/// Set wrapping every system that mutates [`PausedResource`] or drives the
+/// pause/forfeit modal flow. Runs as one deterministic chain between
+/// [`crate::settings_plugin::SettingsMutation`] (the pause overlay's
+/// draw-mode toggle writes `SettingsResource`) and
+/// [`crate::game_plugin::GameMutation`], so every system ordered after
+/// `GameMutation` observes this frame's pause state transitively (#143).
+#[derive(bevy::ecs::schedule::SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct PauseMutation;
+
 impl Plugin for PausePlugin {
     fn build(&self, app: &mut App) {
         // add_message is idempotent — other plugins may register these
@@ -116,28 +125,55 @@ impl Plugin for PausePlugin {
             .add_message::<crate::events::ShowSolutionRequestEvent>()
             .add_message::<InfoToastEvent>()
             .init_resource::<PausedResource>()
+            .configure_sets(
+                Update,
+                PauseMutation
+                    .after(crate::settings_plugin::SettingsMutation)
+                    // Before the pre-mutation game-state spine: the elapsed
+                    // timer must observe this frame's pause transition, and
+                    // the draw-mode toggle's settings write must land before
+                    // sync_settings_to_game forwards it.
+                    .before(crate::game_plugin::PreMutation)
+                    .before(crate::game_plugin::GameMutation)
+                    // toggle_pause must see SelectionState *before*
+                    // handle_selection_keys clears it, so it can skip Escape
+                    // when a card is selected. The other members mutate
+                    // PausedResource, which the selection keys read.
+                    .before(SelectionKeySet)
+                    // HUD buttons read PausedResource (e.g. hint is inert
+                    // while paused) — order them after this frame's pause
+                    // transition.
+                    .before(crate::hud_plugin::HudButtons),
+            )
             .add_systems(
                 Update,
                 (
-                    // toggle_pause must see SelectionState *before* handle_selection_keys
-                    // clears it, so it can skip Escape when a card is selected.
-                    // It must also run *before* handle_forfeit_keyboard so the
-                    // ForfeitConfirmScreen is still alive when toggle_pause's
-                    // early-return guard checks for it — otherwise an Esc that
-                    // closes the forfeit modal would also open pause in the
-                    // same frame.
+                    // toggle_pause must run *before* handle_forfeit_keyboard
+                    // so the ForfeitConfirmScreen is still alive when
+                    // toggle_pause's early-return guard checks for it —
+                    // otherwise an Esc that closes the forfeit modal would
+                    // also open pause in the same frame. The chain preserves
+                    // that edge and makes the whole pause/forfeit flow
+                    // deterministic (all members share PausedResource and
+                    // the forfeit message streams).
+                    // Reads only motion/display settings fields — disjoint
+                    // from the screen-plugin club's writes (#143).
                     toggle_pause
-                        .before(SelectionKeySet)
-                        .before(handle_forfeit_keyboard),
-                    handle_pause_draw_buttons,
+                        .in_set(crate::settings_plugin::SettingsAccess)
+                        .ambiguous_with(crate::settings_plugin::SettingsAccess),
+                    auto_resume_on_overlay,
+                    handle_pause_draw_buttons
+                        .in_set(crate::settings_plugin::SettingsAccess)
+                        .ambiguous_with(crate::settings_plugin::SettingsAccess),
                     handle_pause_resume_button,
                     handle_pause_forfeit_button,
                     handle_pause_solution_button,
                     handle_forfeit_request,
-                    handle_forfeit_confirm_buttons,
                     handle_forfeit_keyboard,
-                    auto_resume_on_overlay,
-                ),
+                    handle_forfeit_confirm_buttons,
+                )
+                    .chain()
+                    .in_set(PauseMutation),
             );
     }
 }

solitaire_engine/src/pending_hint.rs

@@ -39,6 +39,13 @@ use crate::resources::{GameStateResource, HintCycleIndex};
 /// emits the hint visuals once the task completes. At most one task
 /// is ever in flight: a fresh H press while a previous task is
 /// running drops the previous task and queues the new one.
+/// Set wrapping the async hint pipeline (state-change drop → poll). The
+/// HUD hint button orders `.before` it so a press cancels/spawns before
+/// this frame's poll; the drag-highlight painters order `.after` it so
+/// the hint sprite writes are settled (#143).
+#[derive(bevy::ecs::schedule::SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct PendingHint;
+
 #[derive(Resource, Default)]
 pub struct PendingHintTask {
     /// `Some` while the solver is still working on a verdict.

solitaire_engine/src/play_by_seed_plugin.rs

@@ -115,10 +115,27 @@ impl Plugin for PlayBySeedPlugin {
                 Update,
                 (
                     handle_open_dialog,
-                    handle_text_input,
-                    tick_debounce_and_spawn_solver_task,
-                    poll_solver_task,
-                    handle_confirm,
+                    // Writes the marker-filtered seed-dialog Text nodes —
+                    // disjoint from the other text painters (UiTextFx
+                    // club, #143).
+                    handle_text_input
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    tick_debounce_and_spawn_solver_task
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx)
+                        // Reads deal settings for the solver spawn; a frame
+                        // of lag is invisible (#143).
+                        .in_set(crate::settings_plugin::SettingsAccess)
+                        .ambiguous_with(crate::settings_plugin::SettingsAccess),
+                    poll_solver_task
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    // Shares the new-game request stream with the other
+                    // writers (drained wholesale at GameMutation, #143).
+                    handle_confirm
+                        .in_set(crate::game_plugin::NewGameRequestWriters)
+                        .ambiguous_with(crate::game_plugin::NewGameRequestWriters),
                     handle_cancel,
                 )
                     .chain()

solitaire_engine/src/profile_plugin.rs

@@ -60,6 +60,14 @@ pub struct DailyCalendarDot {
 /// [`spawn_profile_body`] for this tab's content.
 pub struct ProfilePlugin;
 
+/// Self-ambiguous club for writers of
+/// [`crate::events::ToggleProfileRequestEvent`] (HUD avatar button, home
+/// profile chip, HUD menu option). The You-hub reader drains the whole
+/// queue, so writer append order is irrelevant; `you_hub_plugin` orders
+/// its open/tab handling after the club (#143).
+#[derive(bevy::ecs::schedule::SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct ProfileToggleWriters;
+
 /// Marker on the scrollable body Node inside the Profile modal.
 ///
 /// The Profile panel renders sync info, progression (incl. 14-day
@@ -82,7 +90,12 @@ impl Plugin for ProfilePlugin {
             .add_message::<MouseWheel>()
             // Open/close/tab handling moved to `you_hub_plugin`
             // (Phase E) — this plugin now owns body content + scroll.
-            .add_systems(Update, scroll_profile_panel);
+            .add_systems(
+                Update,
+                scroll_profile_panel
+                    .in_set(crate::ui_modal::PanelScroll)
+                    .ambiguous_with(crate::ui_modal::PanelScroll),
+            );
     }
 }
 

solitaire_engine/src/progress_plugin.rs

@@ -37,6 +37,21 @@ pub struct LevelUpEvent {
 #[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
 pub struct ProgressUpdate;
 
+/// Set for `challenge_plugin::advance_on_challenge_win`. See the
+/// mode-completion chain configured in `ProgressPlugin::build` (#143).
+#[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct ChallengeCompletion;
+
+/// Set for `daily_challenge_plugin::handle_daily_completion`. See the
+/// mode-completion chain configured in `ProgressPlugin::build` (#143).
+#[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct DailyCompletion;
+
+/// Set for `weekly_goals_plugin::evaluate_weekly_goals`. See the
+/// mode-completion chain configured in `ProgressPlugin::build` (#143).
+#[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct WeeklyGoalsEval;
+
 /// Bevy plugin that awards XP on `GameWonEvent`, persists `PlayerProgress`,
 /// and emits `LevelUpEvent` whenever a win crosses a level boundary.
 ///
@@ -74,7 +89,27 @@ impl Plugin for ProgressPlugin {
             .add_message::<GameWonEvent>()
             .add_systems(
                 Update,
-                award_xp_on_win.after(GameMutation).in_set(ProgressUpdate),
+                award_xp_on_win
+                    .after(GameMutation)
+                    .in_set(ProgressUpdate)
+                    // Base win XP lands before the mode bonuses so the
+                    // level-up attribution is stable.
+                    .before(ChallengeCompletion),
+            )
+            // Mode-completion evaluators, pinned in one explicit chain
+            // INSIDE ProgressUpdate — every `.after(ProgressUpdate)`
+            // reader then sees fully-settled progress. Each evaluator
+            // drains GameWonEvent via its own cursor and writes disjoint
+            // ProgressResource fields plus XP, but a daily win also counts
+            // toward weekly goals, so two members can fire on the same
+            // frame — we pin an order rather than argue the XP/level-up
+            // event stream is commutative (#143).
+            .configure_sets(
+                Update,
+                (ChallengeCompletion, DailyCompletion, WeeklyGoalsEval)
+                    .chain()
+                    .in_set(ProgressUpdate)
+                    .after(GameMutation),
             );
     }
 }

solitaire_engine/src/radial_menu.rs

@@ -185,16 +185,31 @@ impl Plugin for RadialMenuPlugin {
             // Tests inject `RadialCursorOverride` themselves; production
             // never touches it. We do not `init_resource` here so the
             // cursor-from-window path is the default.
+            // The radial gesture reacts to pointer state the drag pipeline
+            // settles, and its release handler feeds the shared move
+            // request stream consumed at GameMutation this frame, so the
+            // chain sits between PointerInput and GameMutation. The redraw
+            // reads settings (reduce-motion) where a frame of lag is
+            // invisible — SettingsAccess club (#143).
             .add_systems(
                 Update,
                 (
                     radial_open_on_right_click,
                     radial_open_on_long_press,
                     radial_track_cursor,
-                    radial_handle_release_or_cancel,
-                    radial_redraw_overlay,
+                    radial_handle_release_or_cancel
+                        .in_set(crate::game_plugin::MoveRequestWriters)
+                        .ambiguous_with(crate::game_plugin::MoveRequestWriters),
+                    radial_redraw_overlay
+                        .in_set(crate::settings_plugin::SettingsAccess)
+                        .ambiguous_with(crate::settings_plugin::SettingsAccess),
                 )
-                    .chain(),
+                    .chain()
+                    .after(crate::input_plugin::PointerInput)
+                    // Selection keys also touch DragState (mutual pointer/
+                    // keyboard exclusion) — keys settle first.
+                    .after(crate::selection_plugin::SelectionKeySet)
+                    .before(crate::game_plugin::GameMutation),
             );
     }
 }

solitaire_engine/src/replay_overlay/mod.rs

@@ -464,25 +464,71 @@ impl Plugin for ReplayOverlayPlugin {
                 Update,
                 (
                     react_to_state_change,
-                    update_banner_label,
-                    update_progress_text,
-                    update_floating_progress_chip,
-                    update_scrub_fill,
-                    update_move_log_header,
-                    update_move_log_active_row,
-                    update_move_log_prev_rows,
-                    update_move_log_next_rows,
-                    update_mini_tableau_foundations,
-                    update_mini_tableau_stock_waste,
-                    update_pause_button_label,
+                    // Marker-filtered Text/Node repaints — each owns one
+                    // disjoint overlay marker, so they join the UiTextFx
+                    // club alongside the HUD text painters (#143).
+                    update_banner_label
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    update_progress_text
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    update_floating_progress_chip
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    update_scrub_fill
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    update_move_log_header
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    update_move_log_active_row
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    update_move_log_prev_rows
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    update_move_log_next_rows
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    update_mini_tableau_foundations
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    update_mini_tableau_stock_waste
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    update_pause_button_label
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
                     handle_pause_button,
-                    handle_step_button,
+                    // Step/scrub dispatch into the shared move/draw/undo
+                    // request streams (drained wholesale at GameMutation),
+                    // so they join the writer clubs (#143).
+                    handle_step_button
+                        .in_set(crate::game_plugin::MoveRequestWriters)
+                        .ambiguous_with(crate::game_plugin::MoveRequestWriters)
+                        .in_set(crate::game_plugin::DrawRequestWriters)
+                        .ambiguous_with(crate::game_plugin::DrawRequestWriters),
                     handle_pause_keyboard,
                     handle_stop_keyboard,
-                    handle_arrow_keyboard,
+                    handle_arrow_keyboard
+                        .in_set(crate::game_plugin::MoveRequestWriters)
+                        .ambiguous_with(crate::game_plugin::MoveRequestWriters)
+                        .in_set(crate::game_plugin::UndoRequestWriters)
+                        .ambiguous_with(crate::game_plugin::UndoRequestWriters)
+                        .in_set(crate::game_plugin::DrawRequestWriters)
+                        .ambiguous_with(crate::game_plugin::DrawRequestWriters),
                     handle_stop_button,
                 )
-                    .chain(),
+                    .chain()
+                    // After the playback driver so painters render the
+                    // post-tick state; before GameMutation so the step /
+                    // scrub events are consumed this frame. Click handlers
+                    // writing ReplayPlaybackState stay at the end of the
+                    // chain — a press is observed by react_to_state_change
+                    // next frame (state-driven loop, see above) (#143).
+                    .after(crate::replay_playback::ReplayPlayback)
+                    .before(crate::game_plugin::GameMutation),
             );
     }
 }

solitaire_engine/src/replay_playback.rs

@@ -550,6 +550,14 @@ fn fire_state_changed_on_completion(
     *last_was_completed = now_completed;
 }
 
+/// Set wrapping the replay playback driver chain (tick → auto-clear →
+/// completion `StateChangedEvent`). The tick feeds `MoveRequestEvent` /
+/// `DrawRequestEvent` into this frame's [`GameMutation`], so the set sits
+/// on the pre-mutation spine; the overlay UI (`replay_overlay`) orders
+/// itself after this set so its painters render the post-tick state (#143).
+#[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct ReplayPlayback;
+
 /// Bevy plugin that initialises [`ReplayPlaybackState`] and drives
 /// playback ticks, completion linger, and the recording-pause guard.
 ///
@@ -562,18 +570,46 @@ impl Plugin for ReplayPlaybackPlugin {
     fn build(&self, app: &mut App) {
         app.init_resource::<ReplayPlaybackState>()
             .add_message::<StateChangedEvent>()
-            .add_systems(
+            .configure_sets(
                 Update,
-                (
-                    tick_replay_playback,
-                    auto_clear_completed_replay,
-                    fire_state_changed_on_completion,
-                )
-                    .chain(),
+                ReplayPlayback
+                    .after(crate::game_plugin::PreMutation)
+                    // Input first: a stop/pause press or a drag-emitted
+                    // request this frame is observed before the tick fires
+                    // the next scripted move (#143).
+                    .after(crate::input_plugin::PointerInput)
+                    .before(GameMutation),
             )
             .add_systems(
                 Update,
-                record_replay_skip_during_playback.after(GameMutation),
+                (
+                    // The tick shares the move/draw request streams with the
+                    // pointer/keyboard writers (drained wholesale at
+                    // GameMutation) and reads playback speed from settings.
+                    tick_replay_playback
+                        .in_set(crate::game_plugin::MoveRequestWriters)
+                        .ambiguous_with(crate::game_plugin::MoveRequestWriters)
+                        .in_set(crate::game_plugin::DrawRequestWriters)
+                        .ambiguous_with(crate::game_plugin::DrawRequestWriters)
+                        .in_set(crate::settings_plugin::SettingsAccess)
+                        .ambiguous_with(crate::settings_plugin::SettingsAccess),
+                    auto_clear_completed_replay,
+                    // Chained before GameMutation: explicit order against the
+                    // mutation systems' StateChangedEvent writes; readers
+                    // drain the whole queue after GameMutation.
+                    fire_state_changed_on_completion,
+                )
+                    .chain()
+                    .in_set(ReplayPlayback),
+            )
+            .add_systems(
+                Update,
+                record_replay_skip_during_playback
+                    .after(GameMutation)
+                    // After AutoComplete so the stats overlay's watch-replay
+                    // handler (which resets ReplayPlaybackState) and the
+                    // win-path recorder have both settled (#143).
+                    .after(crate::auto_complete_plugin::AutoComplete),
             );
     }
 }

solitaire_engine/src/safe_area.rs

@@ -74,10 +74,28 @@ impl Plugin for SafeAreaInsetsPlugin {
             .add_systems(
                 Update,
                 (
-                    apply_safe_area_anchors,
-                    apply_safe_area_bottom_anchors,
-                    apply_safe_area_to_modal_scrims,
-                    on_app_resumed,
+                    // All three write Node padding on disjoint chrome roots
+                    // (top anchors / bottom anchors / modal scrims); chained
+                    // for a deterministic pass, and they join the UiTextFx
+                    // chrome club — anchored roots are never the label/
+                    // tooltip/readout entities the other members touch,
+                    // which Bevy can't prove from the queries (#143).
+                    (
+                        apply_safe_area_anchors,
+                        apply_safe_area_bottom_anchors,
+                        apply_safe_area_to_modal_scrims,
+                    )
+                        .chain()
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx)
+                        // UiScale is written on the settings mutator spine.
+                        .after(crate::settings_plugin::SettingsMutation),
+                    // Emits a synthetic WindowResized on resume only; every
+                    // reader drains the queue via cursor, and a resume
+                    // already spans hundreds of ms, so whether the synthetic
+                    // event lands this frame or next is invisible — same
+                    // argument as handle_fullscreen (#143).
+                    on_app_resumed.ambiguous_with_all(),
                 ),
             );
 

solitaire_engine/src/schedule_checks.rs

@@ -23,14 +23,43 @@ mod tests {
     use bevy::ecs::schedule::{LogLevel, ScheduleBuildSettings};
     use bevy::prelude::*;
 
+    use crate::achievement_plugin::AchievementPlugin;
+    use crate::animation_plugin::AnimationPlugin;
     use crate::auto_complete_plugin::AutoCompletePlugin;
+    use crate::card_animation::CardAnimationPlugin;
     use crate::card_plugin::CardPlugin;
+    use crate::challenge_plugin::ChallengePlugin;
+    use crate::cursor_plugin::CursorPlugin;
+    use crate::daily_challenge_plugin::DailyChallengePlugin;
+    use crate::difficulty_plugin::DifficultyPlugin;
+    use crate::feedback_anim_plugin::FeedbackAnimPlugin;
     use crate::game_plugin::GamePlugin;
+    use crate::help_plugin::HelpPlugin;
+    use crate::home_plugin::HomePlugin;
     use crate::hud_plugin::HudPlugin;
+    use crate::input_plugin::InputPlugin;
+    use crate::leaderboard_plugin::LeaderboardPlugin;
+    use crate::onboarding_plugin::OnboardingPlugin;
+    use crate::pause_plugin::PausePlugin;
+    use crate::play_by_seed_plugin::PlayBySeedPlugin;
+    use crate::profile_plugin::ProfilePlugin;
+    use crate::progress_plugin::ProgressPlugin;
+    use crate::radial_menu::RadialMenuPlugin;
+    use crate::replay_overlay::ReplayOverlayPlugin;
+    use crate::replay_playback::ReplayPlaybackPlugin;
+    use crate::safe_area::SafeAreaInsetsPlugin;
+    use crate::selection_plugin::SelectionPlugin;
     use crate::settings_plugin::SettingsPlugin;
+    use crate::splash_plugin::SplashPlugin;
+    use crate::stats_plugin::StatsPlugin;
     use crate::table_plugin::TablePlugin;
+    use crate::time_attack_plugin::TimeAttackPlugin;
+    use crate::touch_selection_plugin::TouchSelectionPlugin;
     use crate::ui_focus::UiFocusPlugin;
     use crate::ui_modal::UiModalPlugin;
+    use crate::ui_tooltip::UiTooltipPlugin;
+    use crate::weekly_goals_plugin::WeeklyGoalsPlugin;
+    use crate::win_summary_plugin::WinSummaryPlugin;
 
     /// The backlog (302 pairs on 2026-07-06) was burned down to ZERO the
     /// same day (#143, PRs #146–#149) — this is now a hard gate. If your
@@ -51,7 +80,40 @@ mod tests {
             .add_plugins(AutoCompletePlugin)
             .add_plugins(UiModalPlugin)
             .add_plugins(UiFocusPlugin)
-            .add_plugins(SettingsPlugin::headless());
+            .add_plugins(SettingsPlugin::headless())
+            // Batch: game-adjacent plugins (all already exercised headless
+            // by the engine behaviour tests).
+            .add_plugins(ProgressPlugin::headless())
+            .add_plugins(StatsPlugin::headless())
+            .add_plugins(AchievementPlugin::headless())
+            .add_plugins(SelectionPlugin)
+            .add_plugins(AnimationPlugin)
+            .add_plugins(CardAnimationPlugin)
+            .add_plugins(FeedbackAnimPlugin)
+            .add_plugins(PausePlugin)
+            // Batch: screen/overlay plugins.
+            .add_plugins(HomePlugin::headless())
+            .add_plugins(WinSummaryPlugin)
+            .add_plugins(SplashPlugin)
+            .add_plugins(HelpPlugin)
+            .add_plugins(OnboardingPlugin)
+            .add_plugins(ProfilePlugin)
+            .add_plugins(LeaderboardPlugin)
+            // Batch: mode/replay/input plugins.
+            .add_plugins(ChallengePlugin)
+            .add_plugins(DailyChallengePlugin)
+            .add_plugins(TimeAttackPlugin)
+            .add_plugins(WeeklyGoalsPlugin)
+            .add_plugins(PlayBySeedPlugin)
+            .add_plugins(DifficultyPlugin)
+            .add_plugins(ReplayPlaybackPlugin)
+            .add_plugins(ReplayOverlayPlugin)
+            .add_plugins(RadialMenuPlugin)
+            .add_plugins(InputPlugin)
+            .add_plugins(TouchSelectionPlugin)
+            .add_plugins(UiTooltipPlugin)
+            .add_plugins(CursorPlugin)
+            .add_plugins(SafeAreaInsetsPlugin);
         app.init_resource::<ButtonInput<KeyCode>>();
         app
     }

solitaire_engine/src/selection_plugin.rs

@@ -134,6 +134,14 @@ impl KeyboardDragState {
 #[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
 pub struct SelectionKeySet;
 
+/// Set wrapping the post-mutation selection maintenance chain (clearing the
+/// selection on state change, painting the highlight). Runs between
+/// [`crate::game_plugin::GameMutation`] and
+/// [`crate::card_plugin::BoardVisuals`] so the painters read the settled
+/// selection/drag state (#143).
+#[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct SelectionFx;
+
 /// Marker component placed on the outline sprite used as the keyboard-selection
 /// highlight.
 ///
@@ -158,14 +166,35 @@ impl Plugin for SelectionPlugin {
                 (
                     handle_selection_keys
                         .in_set(SelectionKeySet)
-                        .before(GameMutation),
-                    clear_selection_on_state_change.after(GameMutation),
-                    update_selection_highlight.after(GameMutation).run_if(
-                        resource_changed::<SelectionState>
-                            .or(resource_changed::<KeyboardDragState>)
-                            .or(resource_changed::<GameStateResource>),
-                    ),
+                        .before(GameMutation)
+                        // Enter-to-move feeds the shared move request
+                        // stream (drained wholesale at GameMutation, #143).
+                        .in_set(crate::game_plugin::MoveRequestWriters)
+                        .ambiguous_with(crate::game_plugin::MoveRequestWriters),
+                    (
+                        clear_selection_on_state_change,
+                        update_selection_highlight.run_if(
+                            resource_changed::<SelectionState>
+                                .or(resource_changed::<KeyboardDragState>)
+                                .or(resource_changed::<GameStateResource>),
+                        ),
+                    )
+                        .chain()
+                        .in_set(SelectionFx),
                 ),
+            )
+            .configure_sets(
+                Update,
+                SelectionFx
+                    .after(GameMutation)
+                    .before(crate::card_plugin::BoardVisuals),
+            )
+            .configure_sets(
+                Update,
+                // Selection reads GameStateResource (legal destinations) —
+                // run after the pre-mutation spine that ticks/mutates it
+                // (#143).
+                SelectionKeySet.after(crate::game_plugin::PreMutation),
             );
     }
 }

solitaire_engine/src/settings_plugin/mod.rs

@@ -87,6 +87,19 @@ pub struct SettingsChangedEvent(pub Settings);
 #[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
 pub struct SettingsMutation;
 
+/// Self-ambiguous club for the screen/overlay systems that touch
+/// [`SettingsResource`] (onboarding first-run flag, home difficulty/draw
+/// chips, leaderboard opt-in and display name, pause draw toggle, splash
+/// reduce-motion reads, …). Each accessor touches its own disjoint fields,
+/// and the modal-stacking guard means at most one of these screens is
+/// interactive at a time — same-frame access order is provably irrelevant,
+/// so members declare `.in_set(SettingsAccess).ambiguous_with(SettingsAccess)`
+/// (#143). [`SettingsMutation`] is nested inside the club (its members keep
+/// their internal chain). Do NOT add members whose settings read must be
+/// same-frame-exact; order those `.after(SettingsMutation)` instead.
+#[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct SettingsAccess;
+
 /// Marker on the root Settings panel entity.
 #[derive(Component, Debug)]
 pub struct SettingsPanel;
@@ -459,7 +472,12 @@ impl Plugin for SettingsPlugin {
                 Update,
                 SettingsMutation
                     .after(crate::layout::LayoutSystem::UpdateOnResize)
-                    .before(crate::game_plugin::GameMutation),
+                    .before(crate::game_plugin::GameMutation)
+                    // Nested in the club: members keep their chain, but
+                    // their pairs against other screen-plugin settings
+                    // accessors are declared irrelevant (#143).
+                    .in_set(SettingsAccess)
+                    .ambiguous_with(SettingsAccess),
             )
             .add_systems(
                 Update,
@@ -482,8 +500,12 @@ impl Plugin for SettingsPlugin {
                     toggle_settings_screen
                         .before(crate::ui_focus::FocusKeys)
                         .ambiguous_with(crate::hud_plugin::HudButtons),
-                    scroll_settings_panel,
-                    crate::ui_modal::touch_scroll_panel::<SettingsPanelScrollable>,
+                    scroll_settings_panel
+                        .in_set(crate::ui_modal::PanelScroll)
+                        .ambiguous_with(crate::ui_modal::PanelScroll),
+                    crate::ui_modal::touch_scroll_panel::<SettingsPanelScrollable>
+                        .in_set(crate::ui_modal::PanelScroll)
+                        .ambiguous_with(crate::ui_modal::PanelScroll),
                 )
                     .chain(),
             );

solitaire_engine/src/splash_plugin.rs

@@ -99,7 +99,18 @@ impl Plugin for SplashPlugin {
     fn build(&self, app: &mut App) {
         app.add_systems(Startup, spawn_splash).add_systems(
             Update,
-            (dismiss_splash_on_input, advance_splash, pulse_splash_cursor).chain(),
+            // Splash text/fade writers touch UI entities only — they join
+            // the UiTextFx club (disjoint from board/anim sets) and, for
+            // the reduce-motion read in the pulse, the screen-plugin
+            // settings club. Disjoint from the HUD button painters for the
+            // same entity-domain reason (#143).
+            (dismiss_splash_on_input, advance_splash, pulse_splash_cursor)
+                .chain()
+                .in_set(crate::ui_theme::UiTextFx)
+                .ambiguous_with(crate::ui_theme::UiTextFx)
+                .ambiguous_with(crate::hud_plugin::HudButtons)
+                .in_set(crate::settings_plugin::SettingsAccess)
+                .ambiguous_with(crate::settings_plugin::SettingsAccess),
         );
     }
 }

solitaire_engine/src/stats_plugin.rs

@@ -46,6 +46,14 @@ pub struct StatsStoragePath(pub Option<PathBuf>);
 #[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
 pub struct StatsUpdate;
 
+/// Set holding the abandon-recorder (`update_stats_on_new_game`). It must
+/// read the outgoing game's `move_count` before any mode-start handler or
+/// `GameMutation` clobbers the game state — mode plugins order their reset
+/// handlers `.after(AbandonRecord)` via `crate::game_plugin::ModeStart`
+/// (#143).
+#[derive(SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct AbandonRecord;
+
 /// Marker component on the stats overlay root node.
 #[derive(Component, Debug)]
 pub struct StatsScreen;
@@ -205,10 +213,34 @@ impl Plugin for StatsPlugin {
             // constraints (win_summary_plugin: cache_win_data.before(StatsUpdate)),
             // and a system cannot be both inside a set and individually before a
             // set-level ordering constraint.
-            .add_systems(Update, update_stats_on_new_game.before(GameMutation))
             .add_systems(
                 Update,
-                update_stats_on_win.after(GameMutation).in_set(StatsUpdate),
+                update_stats_on_new_game
+                    .in_set(AbandonRecord)
+                    .before(GameMutation)
+                    // Reads the shared new-game request stream via its own
+                    // cursor — append order is irrelevant, so it joins the
+                    // self-ambiguous writer club (NewGameRequestWriters must
+                    // not carry set-level edges; see its doc). The explicit
+                    // edges pin it after the pause/settings/selection
+                    // mutators and the pre-mutation game-state spine it
+                    // reads `move_count` from (#143).
+                    .in_set(crate::game_plugin::NewGameRequestWriters)
+                    .ambiguous_with(crate::game_plugin::NewGameRequestWriters)
+                    .after(crate::game_plugin::PreMutation)
+                    .after(crate::pause_plugin::PauseMutation)
+                    .after(crate::settings_plugin::SettingsMutation)
+                    .after(crate::selection_plugin::SelectionKeySet),
+            )
+            .add_systems(
+                Update,
+                update_stats_on_win
+                    .after(GameMutation)
+                    .in_set(StatsUpdate)
+                    // Also emits toasts (streak milestones) — join the
+                    // self-ambiguous writer club (#143).
+                    .in_set(crate::game_plugin::InfoToastWriters)
+                    .ambiguous_with(crate::game_plugin::InfoToastWriters),
             )
             .add_systems(
                 Update,
@@ -216,29 +248,69 @@ impl Plugin for StatsPlugin {
                 // the NewGameRequestEvent it emits is not visible to
                 // update_stats_on_new_game in the same frame — otherwise
                 // record_abandoned() fires twice on every forfeit (#21).
+                // It drains the ForfeitEvent the pause/forfeit modal chain
+                // emits, and shares the new-game request stream with the
+                // other writers (#143).
                 handle_forfeit
                     .before(GameMutation)
-                    .before(update_stats_on_new_game),
+                    .before(update_stats_on_new_game)
+                    .after(crate::pause_plugin::PauseMutation)
+                    .after(crate::selection_plugin::SelectionKeySet)
+                    .in_set(crate::game_plugin::NewGameRequestWriters)
+                    .ambiguous_with(crate::game_plugin::NewGameRequestWriters),
             )
             // Open/close/tab handling moved to `you_hub_plugin`
             // (Phase E) — this plugin now owns body content, replay
             // selector behavior, and scroll.
-            .add_systems(Update, refresh_replay_history_on_win.after(GameMutation))
-            .add_systems(Update, handle_watch_replay_button)
-            .add_systems(Update, handle_copy_share_link_button)
+            //
+            // Stats overlay UI: one deterministic chain — every member
+            // touches the replay-selector state or the overlay's nodes, and
+            // handle_watch_replay_button resets the live game, so the chain
+            // sits between GameMutation and the auto-complete driver on the
+            // game-state timeline (#143). The toast-emitting members join
+            // the self-ambiguous InfoToastWriters set so the toast pipeline
+            // (AnimFx) drains them this frame.
             .add_systems(
                 Update,
                 (
+                    refresh_replay_history_on_win,
                     handle_replay_selector_buttons,
-                    repaint_replay_selector_caption,
-                    repaint_replay_selector_detail,
+                    // Marker-filtered Text repaints — disjoint from the
+                    // HUD text painters (UiTextFx club, #143).
+                    repaint_replay_selector_caption
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    repaint_replay_selector_detail
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    handle_watch_replay_button
+                        .in_set(crate::game_plugin::InfoToastWriters)
+                        .ambiguous_with(crate::game_plugin::InfoToastWriters),
+                    handle_copy_share_link_button
+                        .in_set(crate::game_plugin::InfoToastWriters)
+                        .ambiguous_with(crate::game_plugin::InfoToastWriters),
                 )
-                    .chain(),
+                    .chain()
+                    .after(GameMutation)
+                    // The overlay repaints read this frame's settled stats,
+                    // progress, and achievement evaluation (level line,
+                    // streak).
+                    .after(StatsUpdate)
+                    .after(crate::progress_plugin::ProgressUpdate)
+                    .after(crate::achievement_plugin::AchievementEval)
+                    .before(crate::auto_complete_plugin::AutoComplete),
             )
-            .add_systems(Update, scroll_stats_panel)
             .add_systems(
                 Update,
-                crate::ui_modal::touch_scroll_panel::<StatsScrollable>,
+                scroll_stats_panel
+                    .in_set(crate::ui_modal::PanelScroll)
+                    .ambiguous_with(crate::ui_modal::PanelScroll),
+            )
+            .add_systems(
+                Update,
+                crate::ui_modal::touch_scroll_panel::<StatsScrollable>
+                    .in_set(crate::ui_modal::PanelScroll)
+                    .ambiguous_with(crate::ui_modal::PanelScroll),
             );
     }
 }

solitaire_engine/src/table_plugin.rs

@@ -112,7 +112,12 @@ impl Plugin for TablePlugin {
                     // paint pipeline — markers and cards share Sprite/
                     // Transform access (#143).
                     (
-                        apply_theme_on_settings_change,
+                        // Drains SettingsChangedEvent via cursor — a home
+                        // deal-option edit (post-mutation SettingsAccess
+                        // writer) surfacing one frame later repaints one
+                        // frame later, which is invisible (#143).
+                        apply_theme_on_settings_change
+                            .ambiguous_with(crate::settings_plugin::SettingsAccess),
                         apply_hint_pile_highlight,
                         tick_hint_pile_highlights,
                         sync_pile_marker_visibility.after(GameMutation),

solitaire_engine/src/time_attack_plugin.rs

@@ -109,13 +109,41 @@ impl Plugin for TimeAttackPlugin {
             .add_message::<NewGameRequestEvent>()
             .add_message::<StartTimeAttackRequestEvent>()
             .add_message::<InfoToastEvent>()
+            // ModeStart places it between the stats abandon-recorder and
+            // GameMutation; it shares the new-game request/toast streams
+            // with the other writers (#143).
             .add_systems(
                 Update,
-                handle_start_time_attack_request.before(GameMutation),
+                handle_start_time_attack_request
+                    .in_set(crate::game_plugin::ModeStart)
+                    .in_set(crate::game_plugin::NewGameRequestWriters)
+                    .ambiguous_with(crate::game_plugin::NewGameRequestWriters)
+                    .in_set(crate::game_plugin::InfoToastWriters)
+                    .ambiguous_with(crate::game_plugin::InfoToastWriters),
+            )
+            // One post-mutation chain for the TimeAttackResource writers:
+            // clock tick, win auto-deal, then the debounced disk save.
+            // The start handler (ModeStart, pre-mutation) is ordered
+            // against all three transitively. auto_deal's new-game request
+            // is drained wholesale next frame, so it joins the writer club
+            // (#143). PausedResource is settled: PauseMutation < GameMutation.
+            .add_systems(
+                Update,
+                (
+                    advance_time_attack,
+                    auto_deal_on_time_attack_win
+                        .in_set(crate::game_plugin::NewGameRequestWriters)
+                        .ambiguous_with(crate::game_plugin::NewGameRequestWriters),
+                    auto_save_time_attack_session,
+                )
+                    .chain()
+                    .after(GameMutation)
+                    // The HUD clock (after AutoComplete) and the ended-toast
+                    // handler (AnimFx) read what this chain writes — settle
+                    // it before both (#143).
+                    .before(crate::auto_complete_plugin::AutoComplete)
+                    .before(crate::animation_plugin::AnimFx),
             )
-            .add_systems(Update, advance_time_attack)
-            .add_systems(Update, auto_deal_on_time_attack_win.after(GameMutation))
-            .add_systems(Update, auto_save_time_attack_session)
             .add_systems(Last, save_time_attack_session_on_exit);
     }
 }

solitaire_engine/src/touch_selection_plugin.rs

@@ -100,7 +100,11 @@ impl Plugin for TouchSelectionPlugin {
                 update_touch_selection_highlight,
             )
                 .chain()
-                .after(GameMutation),
+                .after(GameMutation)
+                // Selection cleanup and highlight placement settle before
+                // the board painters repaint (and before resync's synthetic
+                // StateChanged / fan-frac's layout write land) (#143).
+                .before(crate::card_plugin::BoardVisuals),
         );
     }
 }

solitaire_engine/src/ui_modal.rs

@@ -546,6 +546,15 @@ pub fn spawn_tab_chip<M: Component>(
 // Generic touch-scroll helper
 // ---------------------------------------------------------------------------
 
+/// Self-ambiguous writer set for the per-modal scroll systems (mouse-wheel
+/// and touch variants). Every member writes `ScrollPosition`, but each
+/// targets only its own modal's scrollable body via a marker component, and
+/// the modal-stacking guard means at most one such panel exists at a time —
+/// the writes are disjoint by design, so members declare
+/// `.in_set(PanelScroll).ambiguous_with(PanelScroll)` (#143).
+#[derive(bevy::ecs::schedule::SystemSet, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct PanelScroll;
+
 /// Scrolls any `Overflow::scroll_y()` panel marked with `M` via single-finger
 /// touch pan. Add this as a system for each scrollable modal panel:
 ///
@@ -840,7 +849,11 @@ impl Plugin for UiModalPlugin {
                 .in_set(crate::ui_theme::UiTextFx)
                 .ambiguous_with(crate::ui_theme::UiTextFx)
                 .ambiguous_with(crate::card_plugin::BoardVisuals)
-                .ambiguous_with(crate::hud_plugin::HudButtons),
+                .ambiguous_with(crate::hud_plugin::HudButtons)
+                // Reads only the anim-speed settings field — disjoint from
+                // the screen-plugin club's writes (#143).
+                .in_set(crate::settings_plugin::SettingsAccess)
+                .ambiguous_with(crate::settings_plugin::SettingsAccess),
         );
         // Click-outside-to-dismiss is independent of the open
         // animation chain — it reads `just_pressed(Left)` and runs

solitaire_engine/src/ui_tooltip.rs

@@ -93,7 +93,23 @@ impl Plugin for UiTooltipPlugin {
     fn build(&self, app: &mut App) {
         app.init_resource::<TooltipState>()
             .add_systems(Startup, spawn_tooltip_overlay)
-            .add_systems(Update, (track_tooltip_hover, show_or_hide_tooltip).chain());
+            // The tooltip pair only touches the tooltip overlay entity and
+            // reads settings for the enable flag — chrome-disjoint from the
+            // other UiTextFx members, and a settings read that may lag a
+            // frame joins the SettingsAccess club (#143).
+            .add_systems(
+                Update,
+                (track_tooltip_hover, show_or_hide_tooltip)
+                    .chain()
+                    .in_set(crate::ui_theme::UiTextFx)
+                    .ambiguous_with(crate::ui_theme::UiTextFx)
+                    .in_set(crate::settings_plugin::SettingsAccess)
+                    .ambiguous_with(crate::settings_plugin::SettingsAccess)
+                    // The tooltip node is neither a board entity nor a pile
+                    // marker; the visibility writes can't collide (#143).
+                    .ambiguous_with(crate::card_plugin::BoardVisuals)
+                    .ambiguous_with(crate::table_plugin::MarkerVisuals),
+            );
     }
 }
 

solitaire_engine/src/weekly_goals_plugin.rs

@@ -10,8 +10,8 @@ use solitaire_data::{
 };
 
 use crate::events::{GameWonEvent, XpAwardedEvent};
-use crate::game_plugin::GameMutation;
-use crate::progress_plugin::{LevelUpEvent, ProgressResource, ProgressStoragePath, ProgressUpdate};
+
+use crate::progress_plugin::{LevelUpEvent, ProgressResource, ProgressStoragePath};
 use crate::resources::GameStateResource;
 
 /// Fired when the player has just completed a weekly goal.
@@ -33,11 +33,11 @@ impl Plugin for WeeklyGoalsPlugin {
             .add_systems(Startup, roll_weekly_goals_on_startup)
             // Run after GameMutation (so GameWonEvent is available) and
             // ProgressUpdate (so we don't fight ProgressPlugin's add_xp).
+            // Ordering comes from the mode-completion chain configured in
+            // progress_plugin (#143).
             .add_systems(
                 Update,
-                evaluate_weekly_goals
-                    .after(GameMutation)
-                    .after(ProgressUpdate),
+                evaluate_weekly_goals.in_set(crate::progress_plugin::WeeklyGoalsEval),
             );
     }
 }

solitaire_engine/src/win_summary_plugin.rs

@@ -232,20 +232,54 @@ impl Plugin for WinSummaryPlugin {
             // the player's old personal-best values before `StatsPlugin` overwrites them.
             .add_systems(
                 Update,
-                cache_win_data.after(GameMutation).before(StatsUpdate),
+                cache_win_data
+                    .after(GameMutation)
+                    .before(StatsUpdate)
+                    // Must also read pre-award progress (old level for the
+                    // level-up row) and emits the personal-best toast.
+                    .before(crate::progress_plugin::ProgressUpdate)
+                    .in_set(crate::game_plugin::InfoToastWriters)
+                    .ambiguous_with(crate::game_plugin::InfoToastWriters),
             )
             .add_systems(
                 Update,
+                // One deterministic chain, late on the frame: after AnimFx
+                // so the unlock/XP event streams it drains are settled by
+                // both achievement evaluators (win + replay-completion run
+                // before AnimFx). Members join the request/toast writer
+                // clubs they append to; the camera shake and the score
+                // reveal touch entity domains disjoint from the card/HUD
+                // painters (#143).
                 (
-                    collect_session_achievements,
-                    spawn_win_summary_after_delay,
-                    handle_win_summary_buttons,
+                    collect_session_achievements
+                        .in_set(crate::game_plugin::NewGameRequestWriters)
+                        .ambiguous_with(crate::game_plugin::NewGameRequestWriters),
+                    spawn_win_summary_after_delay
+                        .in_set(crate::settings_plugin::SettingsAccess)
+                        .ambiguous_with(crate::settings_plugin::SettingsAccess),
+                    handle_win_summary_buttons
+                        .in_set(crate::game_plugin::NewGameRequestWriters)
+                        .ambiguous_with(crate::game_plugin::NewGameRequestWriters)
+                        .in_set(crate::game_plugin::InfoToastWriters)
+                        .ambiguous_with(crate::game_plugin::InfoToastWriters),
                     close_overlay_on_watch_replay,
-                    handle_win_summary_keyboard,
-                    apply_screen_shake,
-                    reveal_score_breakdown,
+                    handle_win_summary_keyboard
+                        .in_set(crate::game_plugin::NewGameRequestWriters)
+                        .ambiguous_with(crate::game_plugin::NewGameRequestWriters)
+                        .before(crate::ui_focus::FocusKeys),
+                    apply_screen_shake
+                        .ambiguous_with(crate::feedback_anim_plugin::FeedbackFx)
+                        // Shakes the camera; hint ghosts are their own
+                        // entity domain (#143).
+                        .ambiguous_with(crate::feedback_anim_plugin::HintGhostFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
+                    reveal_score_breakdown
+                        .in_set(crate::ui_theme::UiTextFx)
+                        .ambiguous_with(crate::ui_theme::UiTextFx),
                 )
-                    .after(GameMutation),
+                    .chain()
+                    .after(GameMutation)
+                    .after(crate::animation_plugin::AnimFx),
             );
     }
 }