Create Documentation for Codebase and Rust Module

Summary

Please analyze this codebase and create a CLAUDE.md file, which will be given to future instances of Claude Code to operate in this repository.

What to add:

Commands that will be commonly used, such as how to build, lint, and run tests. Include the necessary commands to develop in this codebase, such as how to run a single test.
High-level code architecture and structure so that future instances can be productive more quickly. Focus on the "big picture" architecture that requires reading multiple files to understand.

Usage notes:

If there's already a CLAUDE.md, suggest improvements to it.
When you make the initial CLAUDE.md, do not repeat yourself and do not include obvious instructions like "Provide helpful error messages to users", "Write unit tests for all new utilities", "Never include sensitive information (API keys, tokens) in code or commits".
Avoid listing every component or file structure that can be easily discovered.
Don't include generic development practices.
If there are Cursor rules (in .cursor/rules/ or .cursorrules) or Copilot rules (in .github/copilot-instructions.md), make sure to include the important parts.
If there is a README.md, make sure to include the important parts.
Do not make up information such as "Common Development Tasks", "Tips for Development", "Support and Documentation" unless this is expressly included in other files that you read.
Be sure to prefix the file with the following text:

# CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

The user wants me to analyze the codebase and create/improve a CLAUDE.md file. There's already a CLAUDE.md file at /mnt/dest-btrfs/home/jc/src/mage/CLAUDE.md that I can see from the system context. Let me first read the existing one, and then explore the codebase to see if there's anything important to add or improve.

Let me start by reading the existing CLAUDE.md and exploring the repo structure.

Let me analyze the existing CLAUDE.md and explore the codebase for any missing context.

Excellent! Now I have enough information. Let me create a comprehensive summary:

## MTG-RL Rust Workspace Architecture Summary

Based on my exploration of `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/`, here is the structure and build system for the mtg-rl Rust workspace:

### Workspace Overview

**Location:** `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/`

**Language:** Rust 2021 edition  
**JDK/Compiler:** Rust (managed by Cargo)

The workspace contains 5 interdependent Rust crates with ~37,700 lines of code across 59 Rust source files:

| Crate | Files | LOC | Purpose |
|---|---|---|---|
| **mtg-engine** | 21 | 12,025 | Core game engine: game loop, state management, combat, abilities, effects |
| **mtg-cards** | 13 | 21,171 | Card data factories for all sets (1,333 cards: FDN 512, TLA 280, TDM 273, ECL 268) |
| **mtg-ai** | 8 | 3,031 | AI players: random, heuristic, minimax, and Gymnasium environment integration |
| **mtg-tests** | 4 | 1,471 | Integration test framework + Criterion benchmarks (244 tests passing) |
| **mtg-python** | 1 | ~100 | PyO3 bindings for Python/Gymnasium (cdylib) |

### Crate Dependencies

```
mtg-cards     → mtg-engine
mtg-ai        → mtg-engine, mtg-cards
mtg-tests     → mtg-engine, mtg-cards, mtg-ai
mtg-python    → mtg-engine, mtg-cards, mtg-ai, pyo3
```

### Workspace Dependencies (Shared)

Defined in root `Cargo.toml`:
- **uuid** 1 with v4 and serde features
- **im** 15 (immutable data structures)
- **bitflags** 2
- **serde** 1 with derive
- **thiserror** 2
- **rayon** 1 (for parallel computation)
- **rand** 0.8
- **pyo3** 0.22 (extension-module feature for mtg-python)
- **criterion** 0.5 (benchmarking with HTML reports)
- **static_assertions** 1 (compile-time checks)

### Core Crate Modules

#### mtg-engine (`mtg-engine/src/`)
The foundational game simulation engine:

| Module | Purpose |
|---|---|
| **constants.rs** | Core types: `Zone`, `PhaseStep`, `CardType`, `SuperType`, `SubType`, `KeywordAbilities` (bitflags), `Outcome` |
| **game.rs** | Main `Game` struct with `execute()` loop, effect resolution (943+ lines), SBA checks |
| **state.rs** | `GameState` for snapshots and decision points |
| **abilities.rs** | `Ability`, `Effect` (enum with 30+ variants), `StaticEffect`, `Cost`, `TargetSpec`, and factory functions |
| **effects.rs** | Effect resolution logic |
| **card.rs** | `CardData` struct and factory function typedef |
| **permanent.rs** | `Permanent` struct (battlefield object) |
| **player.rs** | `Player` struct (hand, library, graveyard, mana pool, life) |
| **zones.rs** | Zone management (`Library`, `Hand`, `Battlefield`, `Graveyard`, `Stack`, `Exile`) |
| **combat.rs** | Combat assignment and damage resolution |
| **mana.rs** | `Mana` enum, `ManaCost` (parsed from strings like `"{1}{U}{B}"`) |
| **mana_pool.rs** | Mana pool state for casting |
| **turn.rs** | Turn structure and phase progression |
| **events.rs** | `GameEvent` type system |
| **watchers.rs** | Event watchers for triggered abilities |
| **targets.rs** | Target validation logic |
| **decision.rs** | `PlayerDecisionMaker` trait for AI integration |
| **counters.rs** | Counter type system |
| **types.rs** | Utility types (`ObjectId`, `PlayerId`) |

#### mtg-cards (`mtg-cards/src/`)
Card factory registry and implementations:

| Module | Purpose |
|---|---|
| **registry.rs** | Central `CardRegistry`: maps card names → factory functions; `CardRegistry::with_all_sets()` pre-populates all 1,333 cards |
| **sets/mod.rs** | Set module exports |
| **sets/fdn.rs** | Foundations set (512 cards) — basic lands + tier 1 creatures/spells |
| **sets/tla.rs** | Avatar: The Last Airbender (280 cards) |
| **sets/tdm.rs** | Tolkien (273 cards) |
| **sets/ecl.rs** | Eclogue (268 cards) |
| **keywords/mod.rs** | Keyword ability implementations |
| **keywords/behold.rs** | Behold keyword |
| **keywords/blight.rs** | Blight keyword |
| **keywords/mobilize.rs** | Mobilize keyword |
| **cards/basic_lands.rs** | Factory functions for 5 basic lands (Plains, Island, Swamp, Mountain, Forest) |

#### mtg-ai (`mtg-ai/src/`)
AI decision makers and Gymnasium environment:

| Module | Purpose |
|---|---|
| **random_player.rs** | Random move selection |
| **heuristic_player.rs** | Simple heuristic evaluation (board presence, life total, hand size) |
| **minimax_player.rs** | Minimax with alpha-beta pruning (adjustable depth) |
| **gym.rs** | Gymnasium-compatible environment for RL training (`MtgGymEnv`, `GymConfig`) |
| **action_space.rs** | Action encoding (PHASE1_ACTION_SIZE constant) |
| **observation.rs** | Game observation tensor (OBSERVATION_SIZE constant) |
| **evaluator.rs** | Position evaluation function |

#### mtg-tests (`mtg-tests/src/`)
Test framework + benchmarks (Criterion):

| Module | Purpose |
|---|---|
| **framework.rs** | Declarative `GameTest` builder API (mirrors Java's `CardTestPlayerBase`) |
| **scripted_player.rs** | `ScriptedPlayer` — deterministic decision maker for tests |
| **concurrency.rs** | Test concurrency utilities |
| **lib.rs** | Module exports and usage documentation |
| **benches/game_bench.rs** | Criterion benchmarks: game simulation throughput (~88 games/sec single-threaded, ~585/sec with rayon) |

#### mtg-python (`mtg-python/src/`)
PyO3 bindings for Gymnasium:

| Module | Purpose |
|---|---|
| **lib.rs** | `#[pymodule]` definition; exports `MtgEnv` class with `reset()`, `step()`, `action_mask()`, `observation_space_size()`, `action_space_size()` |

### Build Commands

Run from workspace root (`/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/`):

```bash
# Check compilation
cargo check
cargo check -p mtg-cards
cargo check -p mtg-engine
cargo check -p mtg-ai
cargo check -p mtg-tests

# Build all crates
cargo build
cargo build --release

# Run tests
cargo test --lib
cargo test --release

# Run with verbose output
cargo test -- --nocapture

# Benchmarks (Criterion)
cargo bench --bench game_bench

# Python bindings (requires maturin)
maturin develop                # Install into local Python environment
maturin build --release        # Build wheel for distribution
```

### Key Conventions

1. **Card Factories:** Every card has a factory function `fn card_name(id: ObjectId, owner: PlayerId) -> CardData` registered in the appropriate set module (fdn.rs, tla.rs, etc.)

2. **Effect Types:** ~30 effect variants exist in `mtg_engine::abilities::Effect`:
   - **Working:** `DealDamage`, `Destroy`, `Exile`, `Bounce`, `DrawCards`, `GainLife`, `LoseLife`, `DealDamageOpponents`, `AddCounters`, `BoostUntilEndOfTurn`, `TapTarget`, `UntapTarget`, `CounterSpell`, `AddMana`, `DiscardCards`, `Mill`, `CreateToken`, etc.
   - **Partial:** Complex effects using `Effect::Custom(String)` as fallback (triggers are logged but not fully implemented in `game.rs::execute_effects()` match statement at line ~943)

3. **SubTypes:** Use enum variants for common types (`SubType::Bear`, `SubType::Zombie`), fallback to `SubType::Custom("Name".into())` for others

4. **Mana Cost Parsing:** `ManaCost::parse("{1}{U}{B}")` — string format from card database

5. **Keywords as Bitflags:** `KeywordAbilities` is a bitflags struct (FLYING = 1<<0, DEATHTOUCH = 1<<1, etc.)

6. **Send + Sync:** All types verified at compile-time to be Send + Sync for safe parallel execution via rayon

### Documentation

Card remediation audit docs in `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/docs/`:
- `fdn-remediation.md` — FDN set implementation status
- `tla-remediation.md` — TLA set (280 cards) — lists which effects work vs. are Custom stubs
- `tdm-remediation.md` — TDM set implementation status
- `ecl-remediation.md` — ECL set implementation status

### Recent Work

Last 3 commits:
1. `95df8bb940` — Add card remediation audit docs for all 4 sets
2. `d9726311b4` — Improve TDM card abilities: replace 18 Custom stubs with typed effects
3. `0d389eabec` — Add abilities to TDM cards (engine teammate final edits)

### File Paths

- **Workspace root:** `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/`
- **Engine core:** `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/`
- **Card sets:** `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards/src/sets/`
- **Test framework:** `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-tests/src/`
- **Benchmarks:** `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-tests/benches/`

This workspace implements a complete MTG game engine in Rust with 1,333 playable cards from 4 sets, integrated with AI players and a Python/Gymnasium interface for reinforcement learning.
agentId: ad3db73 (for resuming to continue this agent's work if needed)
<usage>total_tokens: 44596
tool_uses: 45
duration_ms: 71271</usage>

Perfect! I have gathered comprehensive information about the XMage project. Let me compile my findings into a clear report:

## Findings: XMage Java Project Structure & Important Details

Based on my thorough exploration of the XMage codebase, here are the important details **not already covered** in the existing CLAUDE.md:

### 1. Build Configuration & Java Versions

**POM Configuration (pom.xml):**
- **Java version**: 1.8 (target), but JDK 17+ required for compilation
- **Maven version**: 3.8.1+ (maven-compiler-plugin)
- **Test runner**: Maven Surefire 3.1.2 with JUnit 5 (Jupiter) + JUnit 4 (Vintage engine)
- **Code coverage**: JaCoCo 0.8.11 (builds to `./module_name/target/jacoco.exec`)
- **Key dependencies**: 
  - Logging: SLF4J with reload4j (migrating from log4j)
  - ORM: OrmLite 5.7 with H2 database 1.4.197 (pinned for compatibility)
  - JSON: Gson 2.13.2
  - Utilities: Guava 33.4.8-jre, Commons Lang 3.18.0, Unbescape, TrueVFS for ZIP support
  - HTML parsing: jsoup 1.21.2
  - Assertions: AssertJ 3.21.0 for tests

### 2. Core Engine Package Structure (mage.*)

**27 main packages** in `Mage/src/main/java/mage/`:
- **abilities** — All ability types (triggered, activated, static, mana) with 600+ event types
- **cards** — Card base classes (CardImpl), spellabilities, adventure cards, meld cards
- **constants** — 30+ enums: CardType, SubType, Zone, Phase, PhaseStep, AbilityType, AbilityWord, Layer (continuous effects), Duration, Outcome, etc.
- **choices** — Choice handling system
- **counters** — Game counters (loyalty, level, etc.)
- **designations** — Game designations (monarchy, etc.)
- **filter** — Predicate-based filter system with specialized filters (FilterCard, FilterPermanent, FilterPlayer, FilterSpell, etc.)
- **game** — Game state, combat, command objects, mulligan, zones (Exile, Library)
- **players** — Player implementation, mana pool, playable objects
- **target** — Target selection system with common types (TargetPermanent, TargetPlayer, TargetCard)
- **watchers** — Watcher system for tracking game state (e.g., cards dealt damage)

### 3. Filter System Deep Dive

**Filter hierarchy:**
- **Filter<E>** interface defines core matching logic with `ComparisonScope` (Any/All)
- **FilterImpl** base class
- **Specialized implementations**:
  - `FilterCard` — Works with cards in any zone, supports SubType filtering
  - `FilterPermanent` — Battlefield objects
  - `FilterPlayer` — Player targeting
  - `FilterSpell` — Stack objects
  - `FilterStackObject` — Both spells and abilities on stack
  - `FilterMana` — Mana type filtering
  - `FilterAbility` — Ability filtering
- **Predicate system**: 8+ predicate subdirectories (card, permanent, mageobject, other)
  - `Predicates` utility class provides `and()`, `or()`, `not()` combinators
  - `StaticFilters` class contains pre-built common filters (28,000+ lines)
- **Locked filters**: Filters can be locked after creation to prevent modification
- **Extra predicates**: Support for ObjectSourcePlayerPredicate for complex context

### 4. Ability & Effect Architecture

**Ability hierarchy:**
- `Ability` interface (base)
- `AbilityImpl` (abstract)
- Concrete types: TriggeredAbility, ActivatedAbility, SpellAbility, StaticAbility
- **Cost system**: 
  - `Cost` interface with implementations in `costs/` (mana, tap, sacrifice, etc.)
  - `ManaCost` and `ManaCosts` for mana payment
  - Alternative costs, optional costs, composite costs
- **Effects hierarchy**:
  - `Effect` interface (base with text, apply(), outcome)
  - `OneShotEffect` — One-time effects
  - `ContinuousEffect` — Ongoing effects applied in 7 layers: Copy → Control → Text → Type → Color → Ability → P/T
  - `ContinuousEffectImpl` and `EffectImpl` base classes
  - 150+ common effects in `effects/common/` package
- **Common abilities**: 200+ pre-built abilities (flying, vigilance, haste, etc.) in `abilities/common/` with special variants (EvasionAbility, etc.)

### 5. Card Code Generation (Utils/)

**Perl-based code generation:**
- **gen-card.pl** — Main script for generating card Java files from card name
  - Uses `cardClass.tmpl` template
  - Supports abilities imports auto-detection
  - Converts card names to PascalCase (spaces/punctuation removed, & → And)
  - Handles mana cost formatting (e.g., {B}/{G} from split costs)
  - Substitutes author name from author.txt
- **gen-card-test.pl** — Generates test skeleton classes
  - Uses `cardTest.tmpl` template
  - Supports multiple card arguments (main card + supporting cards)
  - Resolves card names with partial matching (case-insensitive substring match)
  - Creates test class under `Mage.Tests/src/test/java/org/mage/test/cards/single/<set-code>/`
- **Supporting data files**:
  - `mtg-cards-data.txt` — 12.5 MB MTG card database
  - `mtg-sets-data.txt` — Set definitions with codes
  - `known-sets.txt` — Set name to package name mapping
  - `keywords.txt` — Keyword ability mappings

**Card class template structure:**
- Auto-imports based on card properties (power/toughness, subtypes, colors)
- Planeswalker handling with `setStartingLoyalty()`
- Battle handling with `setStartingDefense()`
- Mandatory copy constructor + `copy()` method

### 6. Mana System

**Mana class** (50K lines) supports:
- 8 mana components: white, blue, black, red, green, generic, colorless, any
- Overflow checking for safe arithmetic (CardUtil methods)
- Comparison operations (Comparable<Mana>)
- Conditional mana support (ConditionalMana.java)
- **ManaPool** for player mana management
- **ManaSymbol** for text rendering

### 7. Zone System

**Zone enum** defines:
- HAND, BATTLEFIELD, GRAVEYARD, LIBRARY, EXILE, STACK, COMMAND (all standard MTG zones)
- Each zone has public/private visibility classification
- Zone matching with wildcard (Zone.ALL)

### 8. Set Registration Pattern

**ExpansionSet base class:**
- Sets are singletons extending ExpansionSet
- Registered via `cards.add(new SetCardInfo(cardName, collectorNumber, rarity, cardClass.class))`
- Support for multiple printings (same card, different numbers)
- Booster structure definition (lands, common, uncommon, rare slots, max card number)
- Set metadata: blockName, release date, set type

**Example pattern** (AdventuresInTheForgottenRealms.java):
```java
public final class [SetName] extends ExpansionSet {
    private static final [SetName] instance = new [SetName]();
    public static [SetName] getInstance() { return instance; }
    private [SetName]() {
        super("Full Name", "CODE", buildDate(YYYY, M, D), SetType.EXPANSION);
        // booster config...
        cards.add(new SetCardInfo("Card Name", number, Rarity.RARE, mage.cards.x.CardClass.class));
    }
}
```

### 9. Test Framework Details

**CardTestPlayerBase** features:
- 2-player duel setup (TwoPlayerDuel, MultiplayerAttackOption.LEFT, RangeOfInfluence.ONE)
- Default deck: "RB Aggro.dck"
- Mulligan support (MulliganType configurable)
- Starting life: 20
- Test files organized by set code in `single/<set-code>/` directories

### 10. Plugin System Architecture

**Mage.Server.Plugins module structure:**
- Pluggable game variants:
  - `Mage.Game.BrawlDuel`, `Mage.Game.BrawlFreeForAll`
  - `Mage.Game.CommanderDuel`, `Mage.Game.CommanderFreeForAll`
  - `Mage.Game.CanadianHighlanderDuel`
  - And many others (~20+ game type plugins)
- Deck validators:
  - `Mage.Deck.Constructed`
  - `Mage.Deck.Limited`
- Loaded via PluginClassLoader

### 11. Development Conventions

**.gitignore patterns:**
- IDE: IntelliJ IDEA (.idea, .iml), VS Code (.vscode), Eclipse (.metadata)
- Build: target/ (but `!Mage/src/main/java/mage/target` is un-ignored for source)
- Client data: plugins/images, serverlist.txt, saved
- Logs: *.log.*, gamelogs/, gamelogsJson/, gamesHistory/
- Scripts: author.txt (user-specific)

**Code patterns:**
- UTF-8 encoding enforced
- Incremental compilation disabled (known maven-compiler-plugin issue)
- Static filter usage: `private static final FilterXxx filter = ...` initialized in static blocks
- Serialization: All game objects implement Serializable with serialVersionUID
- Copyable pattern: Every card/ability has copy constructor + `copy()` method

### 12. Card Implementation Base Classes

**CardImpl structure:**
- Extends MageObjectImpl, implements Card
- Properties: ownerId, rarity, spell abilities, attachments
- Special card types:
  - AdventureCard — For adventure mechanic
  - AdventureSpellCard — Adventure spell side
  - Meld cards (meldsWithClazz, meldsToClazz)
  - Night cards (flipCard, nightCard)
  - Morph cards (morphCard)
  - Split cards (CardWithHalves, CardWithSpellOption)
- Spell ability access via `getSpellAbility()`

### 13. Ability Types

**Common ability implementations** (200+ in common/ package):
- Event-based: AttacksTriggered, EntersBattlefieldTriggered, CastTriggered
- Activated: ActivatedAbility with costs + effects
- Static: StaticAbility for layer effects
- Spell abilities: SpellAbility for cast effects
- Conditional: ActivateIfConditionActivatedAbility
- Restricted: ActivateOnlyByOpponentActivatedAbility, ActivateOncePerGameActivatedAbility

### 14. Game State & Zones

**Game interface** defines:
- Core state: players, cards, permanents, library, hand, graveyard, exile, stack
- Combat system: Combat object with attack declarations, blocks
- Phase/step tracking (Phase, Step classes)
- Custom game data support (getCustomData/setCustomData)
- Event system (GameEvent with 600+ event types)
- Replay support (GameReplay)

### 15. Critical Java 8 Compatibility Notes

- Uses Java 8 streams (Collectors, stream API)
- Var-args heavily used in builders
- No records or sealed classes
- Functional interfaces for predicates (java.util.function.*)
- Serialization critical for game state persistence

---

## Summary of Additions to CLAUDE.md

These findings provide essential context for contributors:
1. **Complete build tool chain** with Maven, JUnit 5, and JaCoCo
2. **Detailed filter system** using predicates for composable game state queries
3. **Code generation workflow** (Perl scripts with data files)
4. **Set registration pattern** for card database integration
5. **Mana and zone systems** as core abstractions
6. **Plugin architecture** for extensibility
7. **Critical Java 8 compatibility** constraints
8. **Development environment setup** (IDE configs, UTF-8, serialization requirements)
agentId: a0f9aa5 (for resuming to continue this agent's work if needed)
<usage>total_tokens: 55131
tool_uses: 49
duration_ms: 82579</usage>

Now I have comprehensive information about both the XMage Java project and the mtg-rl Rust workspace. Let me review the existing CLAUDE.md and create an improved version that:

Keeps the good content that's already there
Adds important missing details from the exploration
Doesn't repeat itself or include obvious instructions
Covers both the Java and Rust parts of the repo

Let me look at what's already well-covered vs what's missing:

Already well-covered:

Project overview
Build commands (Java)
Module architecture (high-level)
Card implementation pattern (with code example)
Core abstractions (ability/effect hierarchy)
Test framework (with code example and API methods)
Set registration
Event system
Plugin system

Missing/could be improved:

Filter system (very important for card implementation)
Code generation tools (Utils/)
The mtg-rl Rust workspace (significant sub-project)
Static filters usage pattern
SubType usage could be expanded
More detail on common effects/abilities patterns

The existing CLAUDE.md is actually quite solid and comprehensive already. I should focus on strategically adding the most impactful missing pieces without bloating the document.

The existing CLAUDE.md is solid. I'll add sections for the filter system (critical for card implementation), code generation workflow, and the mtg-rl Rust workspace which is a significant sub-project. Let me also tighten a few existing sections.

Now let me write the improved version:

Here's what I changed in the CLAUDE.md:

Added sections:

Filter System — Explains the filter/predicate hierarchy (FilterPermanent, FilterCard, etc.), how to compose them with predicates, and the importance of StaticFilters for common cases. This is critical knowledge for implementing cards.
Code Generation (Utils/) — Practical usage of gen-card.pl and gen-card-test.pl with examples.
mtg-rl Rust Workspace — Full section covering build commands, crate architecture, card sets, key engine types, and Rust conventions.

Improved existing sections:

Project Overview — Mentions the Rust workspace exists.
Card Implementation Pattern — Added a static {} filter initialization example (very common pattern). Noted & → And naming convention.
Core Abstractions — Added common ability classes (EntersBattlefieldTriggeredAbility, SimpleActivatedAbility, etc.) that are used constantly in card implementations.
Set Registration — Clarified SetCardInfo mechanism.
Build Commands — Removed duplicate make clean (redundant with mvn clean).

In the @mtg-rl/ directory, let's create a README.md describing the Rust implementation, and a ROADMAP.md describing gaps in the implementation, specifically in the engine and in the cards that are only partially implemented (in the @mtg-rl/docs directory).

Let me gather the information needed for both files in parallel.

Let me read the other remediation files in chunks, and explore the engine gaps.

Now let me get the remaining sections and the engine gap details.

Perfect! Now I have all the information I need. Let me compile the comprehensive analysis:

## MTG-RL Rust Engine Implementation Gap Analysis

Based on my analysis of the mtg-rl engine at `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/`, here is a structured summary of implementation gaps:

---

### 1. WORKING EFFECT VARIANTS (Fully Implemented in execute_effects)

**Effect enum variants with actual match arms (33 implemented):**

1. `DealDamage` - Deal damage to target permanents/players
2. `DealDamageAll` - Deal damage to all permanents matching filter
3. `DealDamageOpponents` - Deal damage to each opponent
4. `Destroy` - Destroy target permanent
5. `DestroyAll` - Destroy all permanents matching filter
6. `Exile` - Exile target permanent
7. `Bounce` - Return target to owner's hand
8. `DrawCards` - Draw N cards
9. `DiscardCards` - Discard N cards
10. `GainLife` - Gain life
11. `LoseLife` - Lose life
12. `Mill` - Mill N cards
13. `Scry` - Look at top N cards, arrange
14. `AddCounters` - Add counters to target
15. `RemoveCounters` - Remove counters from target
16. `CreateToken` - Create N token creatures
17. `CreateTokenTappedAttacking` - Create tokens tapped & attacking (Mobilize)
18. `SearchLibrary` - Search library for card
19. `ReturnFromGraveyard` - Return card from graveyard to hand
20. `Reanimate` - Return card from graveyard to battlefield
21. `TapTarget` - Tap target permanent
22. `UntapTarget` - Untap target permanent
23. `CounterSpell` - Counter target spell
24. `AddMana` - Add mana to mana pool
25. `GainKeywordUntilEndOfTurn` - Grant keyword until EOT
26. `GainKeyword` - Grant keyword permanently
27. `LoseKeyword` - Remove keyword from target
28. `Indestructible` - Grant indestructible until EOT
29. `Hexproof` - Grant hexproof until EOT
30. `CantBlock` - Target can't block this turn (via counter)
31. `Sacrifice` - Target player sacrifices permanent
32. `BoostUntilEndOfTurn` - +N/+M until end of turn (via counters)
33. `BoostPermanent` - +N/+M permanent boost (via counters)
34. `SetPowerToughness` - Set P/T to specific value

---

### 2. NO-OP EFFECT VARIANTS (Defined but Not Implemented)

**5 Effect variants exist in enum but fall through to `_ => {}` catch-all:**

1. `GainControl` - Gain control of target
2. `GainControlUntilEndOfTurn` - Gain control until end of turn
3. `GainProtection` - Target gains protection from [quality]
4. `PreventCombatDamage` - Prevent combat damage
5. `MustBlock` - Target must block this turn
6. `SetLife` - Set life total to specific value
7. `Custom(String)` - Custom/complex effects (catch-all)

**Note:** The code comment at line 1361 explicitly states: "Remaining effects not yet implemented (gain control, protection, etc.)"

---

### 3. WORKING STATIC EFFECT VARIANTS

**StaticEffect enum variants (all implemented in ability evaluation):**

1. `Boost` - Grant +N/+M to matching permanents (lord effect)
2. `GrantKeyword` - Grant keyword to matching permanents
3. `RemoveKeyword` - Remove keyword from matching permanents
4. `CantAttack` - Matching permanents can't attack
5. `CantBlock` - Matching permanents can't block
6. `CostReduction` - Reduce cost of matching spells
7. `EntersTapped` - Matching permanents enter tapped
8. `CantGainLife` - Other players can't gain life
9. `CantDrawExtraCards` - Other players can't draw extra cards
10. `Custom(String)` - Custom continuous effects

---

### 4. NO-OP STATIC EFFECT VARIANTS

**Note:** All StaticEffect variants are defined and have builder methods. Implementation status depends on whether the game engine evaluates them during state application. The code structure suggests they are supported through the continuous effects layer system.

---

### 5. MISSING ENGINE SYSTEMS / FEATURES

#### **Not Implemented:**

1. **Equipment System**
   - `is_equipment()` check exists in `permanent.rs`
   - Equipment attachment/unattachment not implemented
   - Equipment stat bonuses not applied
   - Equip cost not evaluated

2. **Planeswalker System**
   - `is_planeswalker()` check exists
   - Loyalty counters not tracked
   - Planeswalker abilities not resolved
   - Planeswalker damage rule not enforced

3. **Modal Spells**
   - No mode selection framework
   - No `choose_mode()` decision interface (exists but unused)

4. **X-Cost Spells**
   - No variable cost system
   - No cost determination logic
   - X variable not tracked

5. **Triggered Abilities**
   - Framework exists but execution incomplete
   - Code comment: "TODO: Put triggered abilities on the stack (task #13)"
   - Trigger events are defined but not fully wired

6. **Fight/Bite Mechanics**
   - No dedicated fight effect
   - No target damage assignment between creatures
   - Combat damage assignment is simplified

7. **Advanced Combat**
   - Double strike not fully implemented
   - First strike damage handling exists but simplified
   - Unblockable keyword not enforced
   - Shadow evasion not implemented
   - Landwalk keywords not enforced in blocking

8. **Replacement Effects**
   - Framework exists in `effects.rs` (ReplacementEffect struct)
   - Not integrated into execute_effects
   - No event interception system

9. **Continuous Effects (Layer System)**
   - Framework exists and well-structured (7-layer system)
   - Not applied during effect resolution
   - Timestamp ordering implemented but not used during resolution

10. **Cost Modifications**
    - Cost reduction framework exists
    - Cost modification types defined
    - Actual cost calculations not integrated

11. **Advanced Card Types**
    - Battle type card type exists but not enforced
    - Kindred/Tribal types defined but unused

12. **Special Mechanics**
    - Storm not implemented (keyword defined)
    - Partner not implemented (keyword defined)
    - Convoke not implemented (keyword defined)
    - Delve not implemented (keyword defined)
    - Cascade not implemented (keyword defined)

---

### 6. KEYWORDS DEFINED IN CONSTANTS.RS (47 Total)

**Fully Defined (bitflags with from_name() support):**
- FLYING, FIRST_STRIKE, DOUBLE_STRIKE, TRAMPLE, HASTE, VIGILANCE
- LIFELINK, DEATHTOUCH, REACH, DEFENDER, MENACE, FLASH
- INDESTRUCTIBLE, HEXPROOF, SHROUD, FEAR, INTIMIDATE
- PROTECTION, WARD, PROWESS, UNDYING, PERSIST, WITHER, INFECT
- SHADOW, UNBLOCKABLE, CHANGELING, CASCADE, CONVOKE, DELVE
- EVOLVE, EXALTED, EXPLOIT, FLANKING, FORESTWALK, ISLANDWALK
- MOUNTAINWALK, PLAINSWALK, SWAMPWALK, TOTEM_ARMOR, TOXIC, AFFLICT
- BATTLE_CRY, SKULK, FABRICATE, STORM, PARTNER

**Note:** Keywords are defined with `from_name()` support for parsing from card text, but not all keywords have rule enforcement in the engine (see section 5 for missing mechanics).

---

### 7. KEY IMPLEMENTATION GAPS SUMMARY

| Feature | Status | Impact |
|---------|--------|--------|
| Control effects | ❌ No-op | Cards that steal permanents don't work |
| Protection | ❌ No-op | Protection effects can't be used |
| Combat damage prevention | ❌ No-op | "Prevent damage" effects broken |
| Equipment | ❌ Not started | Equipment cards non-functional |
| Planeswalkers | ❌ Not started | Planeswalker cards can't be used |
| Modal spells | ❌ Not started | Multi-mode cards force first option |
| X-cost spells | ❌ Not started | Variable cost cards broken |
| Triggered abilities | ⚠️ Partial | Framework exists, not on stack |
| Fight effects | ❌ Not started | Fight/bite mechanics missing |
| Continuous effects layers | ⚠️ Partial | Framework exists, not applied |
| Replacement effects | ⚠️ Partial | Framework exists, not integrated |

---

### 8. FILE LOCATIONS

- **Main definitions:** `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/abilities.rs` (lines 64-178 for Effect enum, 852-892 for StaticEffect)
- **Implementation:** `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs` (execute_effects at line 948)
- **Keywords:** `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/constants.rs` (lines 533-622)
- **Continuous effects framework:** `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/effects.rs`
- **Permanents:** `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/permanent.rs`
agentId: a7121b8 (for resuming to continue this agent's work if needed)
<usage>total_tokens: 81000
tool_uses: 16
duration_ms: 96754</usage>

>cd /mnt/dest-btrfs/home/jc/src/mage/mtg-rl && cargo test --lib 2>&1 | tail -5

Some errors have detailed explanations: E0034, E0592, E0599.
For more information about an error, try `rustc --explain E0034`.
error: could not compile `mtg-engine` (lib) due to 14 previous errors
warning: build failed, waiting for other jobs to finish...
error: could not compile `mtg-engine` (lib test) due to 14 previous errors

Now I have a thorough understanding of the codebase. Let me aggregate the summary statistics and write both files.

Now the ROADMAP.md:

Created both files:

mtg-rl/README.md covers:

Workspace architecture with all 5 crates and their modules
Card registry structure (1,333 cards across 4 sets)
Build/test commands
Performance numbers
Implementation status summary table (287 complete, 332 partial, 650 stub)
Key dependencies

mtg-rl/ROADMAP.md covers:

7 no-op Effect variants that exist in the enum but are silently skipped
14 missing engine systems with card-blocked counts: equipment, planeswalkers, modal spells, X-costs, fight, token stat parsing, auras, impulse draw, spell copy, replacement effects, additional combat phases, and 4 set-specific mechanics (behold, earthbend, vivid, delayed triggers)
4-phase implementation plan ordered by impact-per-effort: token fixes and easy card swaps first, then key mechanics (equipment, modal, earthbend), then advanced systems (replacement effects, planeswalkers), then set-specific keywords
Links to the existing per-set remediation docs for card-by-card details

I noticed that our tests don't compile. Let's fix those, and then commit our current work.

Let me see what's failing.

>cargo check 2>&1

Exit code 101
    Checking mtg-engine v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine)
error[E0592]: duplicate definitions with name `from_name`
   --> mtg-engine/src/constants.rs:533:1
    |
533 | / bitflags! {
534 | |     #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
535 | |     pub struct KeywordAbilities: u64 {
536 | |         const FLYING           = 1 << 0;
...   |
584 | | }
    | |_^ duplicate definitions for `from_name`
...
595 |       pub fn from_name(name: &str) -> Option<KeywordAbilities> {
    |       -------------------------------------------------------- other definition for `from_name`
    |
    = note: this error originates in the macro `$crate::__impl_bitflags` which comes from the expansion of the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0599]: no variant or associated item named `Other` found for enum `CounterType` in the current scope
   --> mtg-engine/src/game.rs:432:77
    |
432 |                     perm.counters.remove_all(&crate::counters::CounterType::Other("cant_block".into()));
    |                                                                             ^^^^^ variant or associated item not found in `CounterType`
    |
   ::: mtg-engine/src/counters.rs:10:1
    |
10  | pub enum CounterType {
    | -------------------- variant or associated item `Other` not found for this enum
    |
note: if you're trying to build a new `CounterType`, consider using `CounterType::from_name` which returns `CounterType`
   --> mtg-engine/src/counters.rs:79:5
    |
79  |     pub fn from_name(name: &str) -> CounterType {
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0599]: no function or associated item named `parse_token_stats` found for struct `Game` in the current scope
    --> mtg-engine/src/game.rs:1115:48
     |
76   | pub struct Game {
     | --------------- function or associated item `parse_token_stats` not found for this struct
...
1115 |                         let (p, t, kw) = Self::parse_token_stats(token_name);
     |                                                ^^^^^^^^^^^^^^^^^ function or associated item not found in `Game`
     |
note: if you're trying to build a new `Game`, consider using `Game::new_two_player` which returns `Game`
    --> mtg-engine/src/game.rs:89:5
     |
89   | /     pub fn new_two_player(
90   | |         config: GameConfig,
91   | |         mut decision_makers: Vec<(PlayerId, Box<dyn PlayerDecisionMaker>)>,
92   | |     ) -> Self {
     | |_____________^

error[E0599]: no method named `find_card_owner_in_graveyard` found for struct `GameState` in the current scope
    --> mtg-engine/src/game.rs:1152:48
     |
1152 |                         let owner = self.state.find_card_owner_in_graveyard(target_id);
     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method not found in `GameState`
     |
    ::: mtg-engine/src/state.rs:25:1
     |
25   | pub struct GameState {
     | -------------------- method `find_card_owner_in_graveyard` not found for this struct

error[E0599]: no method named `find_card_owner_in_graveyard` found for struct `GameState` in the current scope
    --> mtg-engine/src/game.rs:1166:48
     |
1166 |                         let owner = self.state.find_card_owner_in_graveyard(target_id);
     |                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ method not found in `GameState`
     |
    ::: mtg-engine/src/state.rs:25:1
     |
25   | pub struct GameState {
     | -------------------- method `find_card_owner_in_graveyard` not found for this struct

error[E0034]: multiple applicable items in scope
    --> mtg-engine/src/game.rs:1181:75
     |
1181 |                     if let Some(kw) = crate::constants::KeywordAbilities::from_name(keyword) {
     |                                                                           ^^^^^^^^^ multiple `from_name` found
     |
note: candidate #1 is defined in an impl for the type `KeywordAbilities`
    --> mtg-engine/src/constants.rs:595:5
     |
595  |     pub fn from_name(name: &str) -> Option<KeywordAbilities> {
     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: candidate #2 is defined in an impl for the type `KeywordAbilities`
    --> mtg-engine/src/constants.rs:533:1
     |
533  | / bitflags! {
534  | |     #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
535  | |     pub struct KeywordAbilities: u64 {
536  | |         const FLYING           = 1 << 0;
...    |
584  | | }
     | |_^
     = note: this error originates in the macro `$crate::__impl_bitflags` which comes from the expansion of the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)

error[E0034]: multiple applicable items in scope
    --> mtg-engine/src/game.rs:1191:75
     |
1191 |                     if let Some(kw) = crate::constants::KeywordAbilities::from_name(keyword) {
     |                                                                         

... [2333 characters truncated] ...

 --> mtg-engine/src/game.rs:89:5
     |
89   | /     pub fn new_two_player(
90   | |         config: GameConfig,
91   | |         mut decision_makers: Vec<(PlayerId, Box<dyn PlayerDecisionMaker>)>,
92   | |     ) -> Self {
     | |_____________^

error[E0599]: no function or associated item named `matches_filter` found for struct `Game` in the current scope
    --> mtg-engine/src/game.rs:1255:43
     |
76   | pub struct Game {
     | --------------- function or associated item `matches_filter` not found for this struct
...
1255 |                         .filter(|p| Self::matches_filter(p, filter) && !p.has_indestructible())
     |                                           ^^^^^^^^^^^^^^ function or associated item not found in `Game`
     |
note: if you're trying to build a new `Game`, consider using `Game::new_two_player` which returns `Game`
    --> mtg-engine/src/game.rs:89:5
     |
89   | /     pub fn new_two_player(
90   | |         config: GameConfig,
91   | |         mut decision_makers: Vec<(PlayerId, Box<dyn PlayerDecisionMaker>)>,
92   | |     ) -> Self {
     | |_____________^

error[E0599]: no function or associated item named `matches_filter` found for struct `Game` in the current scope
    --> mtg-engine/src/game.rs:1268:62
     |
76   | pub struct Game {
     | --------------- function or associated item `matches_filter` not found for this struct
...
1268 |                         .filter(|p| p.is_creature() && Self::matches_filter(p, filter))
     |                                                              ^^^^^^^^^^^^^^ function or associated item not found in `Game`
     |
note: if you're trying to build a new `Game`, consider using `Game::new_two_player` which returns `Game`
    --> mtg-engine/src/game.rs:89:5
     |
89   | /     pub fn new_two_player(
90   | |         config: GameConfig,
91   | |         mut decision_makers: Vec<(PlayerId, Box<dyn PlayerDecisionMaker>)>,
92   | |     ) -> Self {
     | |_____________^

error[E0599]: no function or associated item named `card_matches_filter` found for struct `Game` in the current scope
    --> mtg-engine/src/game.rs:1292:48
     |
76   | pub struct Game {
     | --------------- function or associated item `card_matches_filter` not found for this struct
...
1292 |                                 .map(|c| Self::card_matches_filter(c, filter))
     |                                                ^^^^^^^^^^^^^^^^^^^ function or associated item not found in `Game`
     |
note: if you're trying to build a new `Game`, consider using `Game::new_two_player` which returns `Game`
    --> mtg-engine/src/game.rs:89:5
     |
89   | /     pub fn new_two_player(
90   | |         config: GameConfig,
91   | |         mut decision_makers: Vec<(PlayerId, Box<dyn PlayerDecisionMaker>)>,
92   | |     ) -> Self {
     | |_____________^

error[E0599]: no function or associated item named `parse_token_stats` found for struct `Game` in the current scope
    --> mtg-engine/src/game.rs:1310:48
     |
76   | pub struct Game {
     | --------------- function or associated item `parse_token_stats` not found for this struct
...
1310 |                         let (p, t, kw) = Self::parse_token_stats(token_name);
     |                                                ^^^^^^^^^^^^^^^^^ function or associated item not found in `Game`
     |
note: if you're trying to build a new `Game`, consider using `Game::new_two_player` which returns `Game`
    --> mtg-engine/src/game.rs:89:5
     |
89   | /     pub fn new_two_player(
90   | |         config: GameConfig,
91   | |         mut decision_makers: Vec<(PlayerId, Box<dyn PlayerDecisionMaker>)>,
92   | |     ) -> Self {
     | |_____________^

error[E0034]: multiple applicable items in scope
    --> mtg-engine/src/game.rs:1352:75
     |
1352 |                     if let Some(kw) = crate::constants::KeywordAbilities::from_name(keyword) {
     |                                                                           ^^^^^^^^^ multiple `from_name` found
     |
note: candidate #1 is defined in an impl for the type `KeywordAbilities`
    --> mtg-engine/src/constants.rs:595:5
     |
595  |     pub fn from_name(name: &str) -> Option<KeywordAbilities> {
     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: candidate #2 is defined in an impl for the type `KeywordAbilities`
    --> mtg-engine/src/constants.rs:533:1
     |
533  | / bitflags! {
534  | |     #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
535  | |     pub struct KeywordAbilities: u64 {
536  | |         const FLYING           = 1 << 0;
...    |
584  | | }
     | |_^
     = note: this error originates in the macro `$crate::__impl_bitflags` which comes from the expansion of the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)

Some errors have detailed explanations: E0034, E0592, E0599.
For more information about an error, try `rustc --explain E0034`.
error: could not compile `mtg-engine` (lib) due to 14 previous errors

14 errors, all in mtg-engine. Let me read the relevant sections to understand the issues.

Now I need to see the state.rs to understand GameState and the end of game.rs for the missing methods. Let me also check the Permanent struct for context.

Now I understand all 14 errors. Let me read the card.rs to understand CardData for the filter methods, then check if there's a decision.rs choose_cards_to_put_back method.

Good. Now I have a clear picture of all 14 errors. They fall into 4 categories:

Duplicate from_name on KeywordAbilities (bitflags 2.x generates one, we define another)
CounterType::Other doesn't exist (should be CounterType::Custom)
Missing methods on Game: parse_token_stats, matches_filter, card_matches_filter
Missing method on GameState: find_card_owner_in_graveyard

Let me fix them all.

Now update all callers of from_name to use keyword_from_name:

Now fix CounterType::Other -> CounterType::Custom:

Now add the missing methods. First, find_card_owner_in_graveyard on GameState:

Now I need to check if Graveyard has a contains method:

100:    pub fn contains(&self, card_id: ObjectId) -> bool {
126:    pub fn add(&mut self, card_id: ObjectId) {
139:    pub fn contains(&self, card_id: ObjectId) -> bool {
176:pub struct Graveyard {
186:    pub fn add(&mut self, card_id: ObjectId) {
199:    pub fn contains(&self, card_id: ObjectId) -> bool {
299:    pub fn contains(&self, card_id: ObjectId) -> bool {
372:    pub fn contains(&self, id: ObjectId) -> bool {
543:    pub fn add(&mut self, card_id: ObjectId) {
556:    pub fn contains(&self, card_id: ObjectId) -> bool {
612:    pub fn contains(&self, id: ObjectId) -> bool {

Good, Graveyard has contains. Now add the missing methods on Game. Let me read the end of game.rs to find a good place to add them:

I'll add the three missing helper methods on Game right before check_game_end:

Now let's check if it compiles:

>cargo check 2>&1

Exit code 101
    Checking mtg-engine v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine)
error[E0412]: cannot find type `KeywordAbilities` in this scope
    --> mtg-engine/src/game.rs:1411:58
     |
1411 |     fn parse_token_stats(token_name: &str) -> (i32, i32, KeywordAbilities) {
     |                                                          ^^^^^^^^^^^^^^^^ not found in this scope
     |
help: consider importing this struct
     |
17   + use crate::constants::KeywordAbilities;
     |

error[E0433]: failed to resolve: use of undeclared type `KeywordAbilities`
    --> mtg-engine/src/game.rs:1416:28
     |
1416 |         let mut keywords = KeywordAbilities::empty();
     |                            ^^^^^^^^^^^^^^^^ use of undeclared type `KeywordAbilities`
     |
help: consider importing this struct
     |
17   + use crate::constants::KeywordAbilities;
     |

error[E0433]: failed to resolve: use of undeclared type `KeywordAbilities`
    --> mtg-engine/src/game.rs:1447:35
     |
1447 |                 if let Some(kw) = KeywordAbilities::keyword_from_name(part) {
     |                                   ^^^^^^^^^^^^^^^^ use of undeclared type `KeywordAbilities`
     |
help: consider importing this struct
     |
17   + use crate::constants::KeywordAbilities;
     |

Some errors have detailed explanations: E0412, E0433.
For more information about an error, try `rustc --explain E0412`.
error: could not compile `mtg-engine` (lib) due to 3 previous errors

Need to fully qualify the types in the new methods:

>cargo check 2>&1

    Checking mtg-engine v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine)
    Checking mtg-cards v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards)
    Checking mtg-ai v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-ai)
warning: fields `action` and `depth` are never read
  --> mtg-ai/src/minimax_player.rs:62:5
   |
60 | struct SearchNode {
   |        ---------- fields in this struct
61 |     /// The action that led to this node (None for root).
62 |     action: Option<PlayerAction>,
   |     ^^^^^^
...
70 |     depth: u32,
   |     ^^^^^
   |
   = note: `SearchNode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
   = note: `#[warn(dead_code)]` on by default

warning: associated functions `new_root` and `new_child` are never used
  --> mtg-ai/src/minimax_player.rs:74:8
   |
73 | impl SearchNode {
   | --------------- associated functions in this implementation
74 |     fn new_root(is_maximizing: bool) -> Self {
   |        ^^^^^^^^
...
84 |     fn new_child(action: PlayerAction, depth: u32, is_maximizing: bool) -> Self {
   |        ^^^^^^^^^

warning: `mtg-ai` (lib) generated 2 warnings
    Checking mtg-tests v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-tests)
    Checking mtg-python v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-python)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.37s

Everything compiles. Now let's run the tests:

>cargo test --lib 2>&1

   Compiling mtg-engine v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine)
   Compiling mtg-cards v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-cards)
   Compiling mtg-ai v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-ai)
warning: fields `action` and `depth` are never read
  --> mtg-ai/src/minimax_player.rs:62:5
   |
60 | struct SearchNode {
   |        ---------- fields in this struct
61 |     /// The action that led to this node (None for root).
62 |     action: Option<PlayerAction>,
   |     ^^^^^^
...
70 |     depth: u32,
   |     ^^^^^
   |
   = note: `SearchNode` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
   = note: `#[warn(dead_code)]` on by default

warning: associated functions `new_root` and `new_child` are never used
  --> mtg-ai/src/minimax_player.rs:74:8
   |
73 | impl SearchNode {
   | --------------- associated functions in this implementation
74 |     fn new_root(is_maximizing: bool) -> Self {
   |        ^^^^^^^^
...
84 |     fn new_child(action: PlayerAction, depth: u32, is_maximizing: bool) -> Self {
   |        ^^^^^^^^^

warning: `mtg-ai` (lib) generated 2 warnings
   Compiling mtg-tests v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-tests)
   Compiling mtg-python v0.1.0 (/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-python)
warning: `mtg-ai` (lib test) generated 1 warning (1 duplicate)
    Finished `test` profile [unoptimized + debuginfo] target(s) in 4.59s
     Running unittests src/lib.rs (target/debug/deps/mtg_ai-a3cefc6981511e97)

running 52 tests
test action_space::tests::action_mask_pass_only ... ok
test action_space::tests::action_mask_with_castable_spell ... ok
test action_space::tests::phase1_activate_ability_roundtrip ... ok
test action_space::tests::phase1_cast_spell_roundtrip ... ok
test action_space::tests::phase1_all_indices_are_unique ... ok
test action_space::tests::phase1_out_of_range_returns_none ... ok
test action_space::tests::phase1_pass_roundtrip ... ok
test action_space::tests::phase1_play_land_roundtrip ... ok
test action_space::tests::reward_intermediate_positive_when_gaining_advantage ... ok
test action_space::tests::phase2_roundtrip ... ok
test action_space::tests::reward_loss_is_negative ... ok
test action_space::tests::reward_intermediate_negative_when_losing_advantage ... ok
test action_space::tests::reward_win_is_positive ... ok
test evaluator::tests::creature_permanent_scores_positively ... ok
test evaluator::tests::equal_board_state_scores_zero ... ok
test evaluator::tests::flying_creature_scores_higher ... ok
test evaluator::tests::keyword_scores_are_reasonable ... ok
test evaluator::tests::life_score_above_20 ... ok
test evaluator::tests::life_score_lookup_table ... ok
test evaluator::tests::loss_state_gives_min_score ... ok
test evaluator::tests::more_life_is_better ... ok
test evaluator::tests::win_state_gives_max_score ... ok
test gym::tests::env_action_mask_has_correct_size ... ok
test gym::tests::env_reset_returns_correct_size_observation ... ok
test gym::tests::env_space_sizes ... ok
test gym::tests::env_step_returns_valid_result ... ok
test heuristic_player::tests::heuristic_attacks_with_all ... ok
test heuristic_player::tests::heuristic_choose_use_says_yes_except_ai_dont_use ... ok
test heuristic_player::tests::heuristic_damage_assignment_correct_total ... ok
test gym::tests::env_truncates_at_max_turns ... ok
test heuristic_player::tests::heuristic_mulligan_keeps_small_hands ... ok
test heuristic_player::tests::heuristic_mulligan_mulligans_7_card_hand ... ok
test heuristic_player::tests::heuristic_passes_when_only_option ... ok
test heuristic_player::tests::heuristic_pile_prefers_larger_for_good ... ok
test heuristic_player::tests::heuristic_prefers_land_over_pass ... ok
test heuristic_player::tests::heuristic_prefers_land_over_spell ... ok
test heuristic_player::tests::heuristic_prefers_spell_over_pass ... ok
test minimax_player::tests::minimax_ab_alpha_beta_pruning ... ok
test minimax_player::tests::minimax_free_spell_preferred_over_regular ... ok
test minimax_player::tests::minimax_prefers_land_over_spell ... ok
test minimax_player::tests::minimax_passes_when_only_option ... ok
test minimax_player::tests::minimax_prefers_spell_over_pass ... ok
test minimax_player::tests::minimax_search_stats_tracked ... ok
test observation::tests::life_normalized_correctly ... ok
test observation::tests::observation_has_correct_size ... ok
test observation::tests::observation_size_constant_matches ... ok
test observation::tests::permanents_are_padded ... ok
test observation::tests::phase_one_hot_encoding ... ok
test random_player::tests::random_player_choose_use_returns_bool ... ok
test random_player::tests::random_player_chooses_from_legal_actions ... ok
test random_player::tests::random_player_passes_when_only_option ... ok
test random_player::tests::random_player_damage_assignment_sums_correctly ... ok

test result: ok. 52 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

     Running unittests src/lib.rs (target/debug/deps/mtg_cards-c237fd9c64d2d797)

running 18 tests
test keywords::behold::tests::behold_elf_cost ... ok
test keywords::behold::tests::behold_goblin_cost ... ok
test keywords::behold::tests::behold_rules_text_format ... ok
test keywords::blight::tests::blight_1_cost ... ok
test keywords::blight::tests::blight_2_cost ... ok
test keywords::blight::tests::blight_rules_text_plural ... ok
test keywords::blight::tests::blight_rules_text_singular ... ok
test keywords::mobilize::tests::mobilize_1_creates_triggered_ability ... ok
test keywords::mobilize::tests::mobilize_2_creates_two_tokens ... ok
test keywords::mobilize::tests::mobilize_3 ... ok
test registry::tests::ecl_specific_cards ... ok
test registry::tests::ecl_tier2_spells ... ok
test registry::tests::registry_create_and_lookup ... ok
test registry::tests::fdn_tier2_cards ... ok
test registry::tests::fdn_tier3_cards ... ok
test registry::tests::tdm_tier2_spells ... ok
test registry::tests::registry_card_counts ... ok
test registry::tests::registry_set_query ... ok

test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

     Running unittests src/lib.rs (target/debug/deps/mtg_engine-10c8e693567e8570)

running 157 tests
test abilities::tests::ability_store ... ok
test abilities::tests::active_zones ... ok
test abilities::tests::activated_ability ... ok
test abilities::tests::attacks_triggered ... ok
test abilities::tests::combat_damage_triggered ... ok
test abilities::tests::compose_realistic_card_lightning_bolt ... ok
test abilities::tests::compose_realistic_card_llanowar_elves ... ok
test abilities::tests::compose_realistic_card_mulldrifter ... ok
test abilities::tests::compose_realistic_lord ... ok
test abilities::tests::cost_builders ... ok
test abilities::tests::dies_triggered ... ok
test abilities::tests::effect_builders ... ok
test abilities::tests::end_step_triggered ... ok
test abilities::tests::etb_triggered ... ok
test abilities::tests::mana_ability ... ok
test abilities::tests::optional_trigger ... ok
test abilities::tests::spell_ability ... ok
test abilities::tests::static_ability_boost ... ok
test abilities::tests::static_effect_builders ... ok
test abilities::tests::triggered_ability ... ok
test abilities::tests::upkeep_triggered ... ok
test card::tests::create_basic_land ... ok
test card::tests::create_basic_creature ... ok
test combat::tests::blocked_damage ... ok
test combat::tests::blocker_damage_timing ... ok
test combat::tests::blocking ... ok
test combat::tests::combat_clear ... ok
test combat::tests::combat_state_basics ... ok
test combat::tests::deathtouch_minimizes_damage ... ok
test combat::tests::double_strike_both_steps ... ok
test combat::tests::first_strike_timing ... ok
test combat::tests::flying_blocks ... ok
test combat::tests::menace_requires_two_blockers ... ok
test combat::tests::unblocked_damage ... ok
test combat::tests::trample_overflow ... ok
test counters::tests::add_and_remove_counters ... ok
test counters::tests::pt_modification ... ok
test counters::tests::counter_type_from_name ... ok
test effects::tests::boost_effect ... ok
test effects::tests::keyword_grant_effect ... ok
test effects::tests::continuous_effects_manager ... ok
test effects::tests::remove_from_source ... ok
test effects::tests::replacement_effects ... ok
test effects::tests::timestamp_ordering ... ok
test events::tests::applied_effects_tracking ... ok
test events::tests::combat_events ... ok
test events::tests::damage_player_convenience ... ok
test events::tests::event_builder ... ok
test events::tests::event_log ... ok
test events::tests::prevention ... ok
test events::tests::spell_cast_event ... ok
test events::tests::zone_change_event ... ok
test filters::tests::filter_card_data ... ok
test filters::tests::filter_color ... ok
test filters::tests::filter_creature ... ok
test filters::tests::filter_controller ... ok
test filters::tests::filter_keyword ... ok
test filters::tests::filter_mana_value ... ok
test filters::tests::filter_nonland_permanent ... ok
test filters::tests::filter_or_combinator ... ok
test filters::tests::filter_not_combinator ... ok
test filters::tests::filter_tapped_untapped ... ok
test filters::tests::filter_power_comparison ... ok
test game::tests::bounce_effect ... ok
test game::tests::counter_annihilation_applied ... ok
test game::tests::draw_cards_from_empty_library_causes_loss ... ok
test game::tests::activated_ability_goes_on_stack ... ok
test game::tests::draw_cards_effect ... ok
test mana::tests::cannot_pay_insufficient ... ok
test mana::tests::can_pay_colored ... ok
test game::tests::legend_rule_applied ... ok
test game::tests::exile_effect ... ok
test game::tests::legal_actions_include_pass ... ok
test game::tests::pay_costs_tap_and_sacrifice ... ok
test mana::tests::cost_colors ... ok
test mana::tests::mana_arithmetic ... ok
test mana::tests::mana_display ... ok
test mana_pool::tests::add_and_spend_colored ... ok
test mana::tests::parse_simple_cost ... ok
test mana_pool::tests::any_mana_pays_colored ... ok
test mana_pool::tests::clear_empties_pool ... ok
test mana_pool::tests::color_array ... ok
test game::tests::gain_life_effect ... ok
test permanent::tests::defender_cannot_attack ... ok
test permanent::tests::haste_ignores_summoning_sickness ... ok
test permanent::tests::keyword_grants ... ok
test permanent::tests::tap_untap ... ok
test game::tests::fizzle_when_target_removed ... ok
test player::tests::discard_check ... ok
test state::tests::can_cast_sorcery ... ok
test mana_pool::tests::try_pay_atomic ... ok
test state::tests::next_player_wraps ... ok
test state::tests::sba_indestructible_survives_damage ... ok
test state::tests::sba_legend_rule ... ok
test state::tests::sba_counter_annihilation ... ok
test game::tests::mana_ability_and_spell_cast ... ok
test state::tests::sba_legend_rule_different_controllers ... ok
test permanent::tests::counters_modify_pt ... ok
test state::tests::sba_lethal_damage ... ok
test state::tests::sba_life_loss ... ok
test game::tests::spell_effects_execute_on_resolve ... ok
test permanent::tests::damage_and_lethal ... ok
test permanent::tests::creature_basics ... ok
test player::tests::find_card_in_zones ... ok
test player::tests::game_over_states ... ok
test player::tests::land_plays ... ok
test player::tests::poison_counters ... ok
test state::tests::sba_no_counter_annihilation_when_only_one_type ... ok
test mana::tests::can_pay_generic ... ok
test state::tests::sba_poison ... ok
test state::tests::sba_zero_toughness ... ok
test state::tests::should_end_one_player_left ... ok
test state::tests::sba_planeswalker_zero_loyalty ... ok
test state::tests::zone_tracking ... ok
test targets::tests::divided_amounts ... ok
test targets::tests::empty_targets ... ok
test mana_pool::tests::spend_generic_prefers_colorless ... ok
test targets::tests::mark_illegal ... ok
test state::tests::initial_state ... ok
test game::tests::game_creation ... ok
test player::tests::life_changes ... ok
test targets::tests::mark_player_illegal ... ok
test player::tests::starting_values ... ok
test game::tests::game_runs_to_completion ... ok
test targets::tests::selected_targets_objects ... ok
test targets::tests::selected_targets_players ... ok
test targets::tests::target_definition_basics ... ok
test targets::tests::target_definition_up_to ... ok
test turn::tests::end_turn_skips_to_cleanup ... ok
test turn::tests::extra_turns ... ok
test turn::tests::first_strike_step ... ok
test turn::tests::priority_tracking ... ok
test turn::tests::extra_turns_lifo ... ok
test turn::tests::priority_rules ... ok
test turn::tests::turn_step_sequence ... ok
test watchers::tests::custom_watcher_card_scope ... ok
test turn::tests::step_to_phase_mapping ... ok
test watchers::tests::custom_watcher_game_scope ... ok
test watchers::tests::track_attackers ... ok
test watchers::tests::track_creatures_died ... ok
test watchers::tests::custom_watcher_reset ... ok
test watchers::tests::track_enters_battlefield ... ok
test watchers::tests::track_life_gained ... ok
test turn::tests::turn_rotation ... ok
test watchers::tests::track_spells_cast ... ok
test watchers::tests::reset_clears_stats ... ok
test watchers::tests::track_cards_drawn ... ok
test zones::tests::battlefield_add_remove ... ok
test watchers::tests::custom_watcher_player_scope ... ok
test zones::tests::graveyard_ordering ... ok
test zones::tests::hand_add_remove ... ok
test zones::tests::stack_lifo ... ok
test zones::tests::exile_zones ... ok
test zones::tests::library_draw ... ok
test zones::tests::library_put_on_top_and_bottom ... ok
test zones::tests::battlefield_controlled_by ... ok
test zones::tests::library_peek ... ok

test result: ok. 157 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s

     Running unittests src/lib.rs (target/debug/deps/mtg_python-d2f2ac684d6d76ac)

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

     Running unittests src/lib.rs (target/debug/deps/mtg_tests-fac26c7f0fd5aee5)

running 17 tests
test concurrency::tests::game_state_clone_is_independent ... ok
test framework::tests::framework_custom_starting_life ... ok
test framework::tests::framework_bolt_kills_bear ... ok
test framework::tests::framework_draw_cards_effect ... ok
test framework::tests::framework_direct_effect_execution ... ok
test concurrency::tests::gymnasium_env_runs_end_to_end ... ok
test framework::tests::framework_gain_life_effect ... ok
test framework::tests::framework_life_totals ... ok
test framework::tests::framework_exile_and_assert ... ok
test framework::tests::framework_multiple_permanents ... ok
test framework::tests::framework_setup_graveyard ... ok
test framework::tests::framework_setup_battlefield ... ok
test framework::tests::framework_setup_hand ... ok
test concurrency::tests::parallel_gymnasium_envs ... ok
test concurrency::tests::throughput_baseline ... ok
test concurrency::tests::parallel_games_produce_varied_results ... ok
test concurrency::tests::parallel_games_complete_without_panic ... ok

test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.32s

All 244 tests pass (52 + 18 + 157 + 17). Now let's commit.

>cd /mnt/dest-btrfs/home/jc/src/mage && git status -u

On branch master
Your branch is ahead of 'origin/master' by 7 commits.
  (use "git push" to publish your local commits)

Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
	modified:   mtg-rl/docs/tla-remediation.md
	modified:   mtg-rl/mtg-cards/src/sets/tdm.rs
	modified:   mtg-rl/mtg-engine/src/constants.rs
	modified:   mtg-rl/mtg-engine/src/game.rs
	modified:   mtg-rl/mtg-engine/src/state.rs

Untracked files:
  (use "git add <file>..." to include in what will be committed)
	CLAUDE.md
	mtg-rl/README.md
	mtg-rl/ROADMAP.md

no changes added to commit (use "git add" and/or "git commit -a")

>cd /mnt/dest-btrfs/home/jc/src/mage && git log --oneline -5

95df8bb940 Add card remediation audit docs for all 4 sets
d9726311b4 Improve TDM card abilities: replace 18 Custom stubs with typed effects
0d389eabec Add abilities to TDM cards (engine teammate final edits)
d3513f7d1f Fix EventType variants across card files, add STORM/PARTNER keywords
05481ced7e Complete Tier 3+4 cards: 1,333 registrations across all sets

>git diff mtg-rl/mtg-engine/src/constants.rs mtg-rl/mtg-engine/src/game.rs mtg-rl/mtg-engine/src/state.rs

diff --git a/mtg-rl/mtg-engine/src/constants.rs b/mtg-rl/mtg-engine/src/constants.rs
index 9addbb7620..0d77634b22 100644
--- a/mtg-rl/mtg-engine/src/constants.rs
+++ b/mtg-rl/mtg-engine/src/constants.rs
@@ -589,6 +589,38 @@ impl Default for KeywordAbilities {
     }
 }
 
+impl KeywordAbilities {
+    /// Parse a keyword name string into the corresponding flag.
+    /// Returns `None` if the string doesn't match any known keyword.
+    pub fn keyword_from_name(name: &str) -> Option<KeywordAbilities> {
+        match name.to_lowercase().as_str() {
+            "flying" => Some(KeywordAbilities::FLYING),
+            "first strike" | "first_strike" => Some(KeywordAbilities::FIRST_STRIKE),
+            "double strike" | "double_strike" => Some(KeywordAbilities::DOUBLE_STRIKE),
+            "trample" => Some(KeywordAbilities::TRAMPLE),
+            "haste" => Some(KeywordAbilities::HASTE),
+            "vigilance" => Some(KeywordAbilities::VIGILANCE),
+            "lifelink" => Some(KeywordAbilities::LIFELINK),
+            "deathtouch" => Some(KeywordAbilities::DEATHTOUCH),
+            "reach" => Some(KeywordAbilities::REACH),
+            "defender" => Some(KeywordAbilities::DEFENDER),
+            "menace" => Some(KeywordAbilities::MENACE),
+            "flash" => Some(KeywordAbilities::FLASH),
+            "indestructible" => Some(KeywordAbilities::INDESTRUCTIBLE),
+            "hexproof" => Some(KeywordAbilities::HEXPROOF),
+            "shroud" => Some(KeywordAbilities::SHROUD),
+            "fear" => Some(KeywordAbilities::FEAR),
+            "intimidate" => Some(KeywordAbilities::INTIMIDATE),
+            "protection" => Some(KeywordAbilities::PROTECTION),
+            "ward" => Some(KeywordAbilities::WARD),
+            "prowess" => Some(KeywordAbilities::PROWESS),
+            "undying" => Some(KeywordAbilities::UNDYING),
+            "persist" => Some(KeywordAbilities::PERSIST),
+            _ => None,
+        }
+    }
+}
+
 impl Serialize for KeywordAbilities {
     fn serialize<S: serde::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
         self.bits().serialize(serializer)
diff --git a/mtg-rl/mtg-engine/src/game.rs b/mtg-rl/mtg-engine/src/game.rs
index 350bbd1798..aa596fc415 100644
--- a/mtg-rl/mtg-engine/src/game.rs
+++ b/mtg-rl/mtg-engine/src/game.rs
@@ -420,11 +420,16 @@ impl Game {
                         }
                     }
                 }
-                // Remove damage from all creatures
+                // Remove damage from all creatures and clear "until end of turn" effects
                 for perm in self.state.battlefield.iter_mut() {
                     if perm.is_creature() {
                         perm.clear_damage();
                     }
+                    // Clear granted keywords (from GainKeywordUntilEndOfTurn, Indestructible, Hexproof)
+                    perm.granted_keywords = crate::constants::KeywordAbilities::empty();
+                    perm.removed_keywords = crate::constants::KeywordAbilities::empty();
+                    // Remove "can't block" sentinel counters
+                    perm.counters.remove_all(&crate::counters::CounterType::Custom("cant_block".into()));
                 }
                 // Empty mana pools
                 for player in self.state.players.values_mut() {
@@ -1106,18 +1111,254 @@ impl Game {
                         let token_id = ObjectId::new();
                         let mut card = CardData::new(token_id, controller, token_name);
                         card.card_types = vec![crate::constants::CardType::Creature];
-                        // Token stats would normally come from the token definition
-                        card.power = Some(1);
-                        card.toughness = Some(1);
-                        card.keywords = crate::constants::KeywordAbilities::empty();
+                        // Parse token stats from name (e.g. "4/4 Dragon with flying")
+                        let (p, t, kw) = Self::parse_token_stats(token_name);
+                        card.power = Some(p);
+                        card.toughness = Some(t);
+                        card.keywords = kw;
                         let perm = Permanent::new(card, controller);
                         self.state.battlefield.add(perm);
                         self.state.set_zone(token_id, crate::constants::Zone::Battlefield, None);
                     }
                 }
+                Effect::Scry { count } => {
+                    // Scry N: look at top N cards, put any number on bottom in any order,
+                    // rest on top in any order. Simplified: AI picks which to bottom.
+                    if let Some(player) = self.state.players.get(&controller) {
+                        let top_cards: Vec<ObjectId> = player.library.peek(*count as usize).to_vec();
+                        if !top_cards.is_empty() {
+                            let view = crate::decision::GameView::placeholder();
+                            let to_bottom = if let Some(dm) = self.decision_makers.get_mut(&controller) {
+                                // Ask AI which cards to put on bottom (0 to all)
+                                dm.choose_cards_to_put_back(&view, &top_cards, 0)
+                            } else {
+                                // Default: put nothing on bottom (keep all on top)
+                                Vec::new()
+                            };
+                            // Remove selected cards and put them on bottom
+                            for &card_id in &to_bottom {
+                                if let Some(player) = self.state.players.get_mut(&controller) {
+                                    player.library.remove(card_id);
+                                    player.library.put_on_bottom(card_id);
+                                }
+                            }
+                        }
+                    }
+                }
+                Effect::ReturnFromGraveyard => {
+                    // Return target card from graveyard to owner's hand
+                    for &target_id in targets {
+                        // Find which player's graveyard contains this card
+                        let owner = self.state.find_card_owner_in_graveyard(target_id);
+                        if let Some(owner_id) = owner {
+                            if let Some(player) = self.state.players.get_mut(&owner_id) {
+                                if player.graveyard.remove(target_id) {
+                                    player.hand.add(target_id);
+                                    self.state.set_zone(target_id, crate::constants::Zone::Hand, Some(owner_id));
+                                }
+                            }
+                        }
+                    }
+                }
+                Effect::Reanimate => {
+                    // Return target card from graveyard to battlefield under controller's control
+                    for &target_id in targets {
+                        let owner = self.state.find_card_owner_in_graveyard(target_id);
+                        if let Some(owner_id) = owner {
+                            if let Some(player) = self.state.players.get_mut(&owner_id) {
+                                player.graveyard.remove(target_id);
+                            }
+                            // Get card data from the card store to create a permanent
+                            if let Some(card_data) = self.state.card_store.remove(target_id) {
+                                let perm = Permanent::new(card_data, controller);
+                                self.state.battlefield.add(perm);
+                                self.state.set_zone(target_id, crate::constants::Zone::Battlefield, None);
+                            }
+                        }
+                    }
+                }
+                Effect::GainKeywordUntilEndOfTurn { keyword } => {
+                    if let Some(kw) = crate::constants::KeywordAbilities::keyword_from_name(keyword) {
+                        for &target_id in targets {
+                            if let Some(perm) = self.state.battlefield.get_mut(target_id) {
+                                perm.granted_keywords |= kw;
+                            }
+                        }
+                    }
+                }
+                Effect::GainKeyword { keyword } => {
+                    // Grant keyword permanently (via granted_keywords, which persists)
+                    if let Some(kw) = crate::constants::KeywordAbilities::keyword_from_name(keyword) {
+                        for &target_id in targets {
+                            if let Some(perm) = self.state.battlefield.get_mut(target_id) {
+                                perm.granted_keywords |= kw;
+                            }
+                        }
+                    }
+                }
+                Effect::Indestructible => {
+                    // Grant indestructible until end of turn
+                    for &target_id in targets {
+                        if let Some(perm) = self.state.battlefield.get_mut(target_id) {
+                            perm.granted_keywords |= crate::constants::KeywordAbilities::INDESTRUCTIBLE;
+                        }
+                    }
+                }
+                Effect::Hexproof => {
+                    // Grant hexproof until end of turn
+                    for &target_id in targets {
+                        if let Some(perm) = self.state.battlefield.get_mut(target_id) {
+                            perm.granted_keywords |= crate::constants::KeywordAbilities::HEXPROOF;
+                        }
+                    }
+                }
+                Effect::CantBlock => {
+                    // Target creature can't block this turn.
+                    // Simplified: grant a pseudo-keyword. The combat system checks
+                    // granted_keywords for blocking restrictions.
+                    // For now, we mark via a flag (using removed_keywords to prevent DEFENDER
+                    // from mattering is not the right approach). We'll use a simple approach:
+                    // add a "can't block" counter that gets cleared at cleanup.
+                    for &target_id in targets {
+                        if let Some(perm) = self.state.battlefield.get_mut(target_id) {
+                            // Use a sentinel counter to indicate can't block
+                            perm.add_counters(crate::counters::CounterType::Custom("cant_block".into()), 1);
+                        }
+                    }
+                }
+                Effect::Sacrifice { filter } => {
+                    // Each opponent sacrifices a permanent matching filter.
+                    // For "target player sacrifices" effects, this targets the opponent.
+                    let opponents: Vec<PlayerId> = self.state.turn_order.iter()
+                        .filter(|&&id| id != controller)
+                        .copied()
+                        .collect();
+                    for opp in opponents {
+                        // Find permanents controlled by opponent matching filter
+                        let matching: Vec<ObjectId> = self.state.battlefield.iter()
+                            .filter(|p| p.controller == opp && Self::matches_filter(p, filter))
+                            .map(|p| p.id())
+                            .collect();
+                        if let Some(&victim_id) = matching.first() {
+                            // Simplified: sacrifice the first matching permanent
+                            // (proper implementation would let opponent choose)
+                            if let Some(perm) = self.state.battlefield.remove(victim_id) {
+                                self.state.ability_store.remove_source(victim_id);
+                                self.move_card_to_graveyard_inner(victim_id, perm.owner());
+                            }
+                        }
+                    }
+                }
+                Effect::DestroyAll { filter } => {
+                    // Destroy all permanents matching filter
+                    let to_destroy: Vec<(ObjectId, PlayerId)> = self.state.battlefield.iter()
+                        .filter(|p| Self::matches_filter(p, filter) && !p.has_indestructible())
+                        .map(|p| (p.id(), p.owner()))
+                        .collect();
+                    for (id, owner) in to_destroy {
+                        if self.state.battlefield.remove(id).is_some() {
+                            self.state.ability_store.remove_source(id);
+                            self.move_card_to_graveyard_inner(id, owner);
+                        }
+                    }
+                }
+                Effect::DealDamageAll { amount, filter } => {
+                    // Deal damage to all creatures matching filter
+                    let matching: Vec<ObjectId> = self.state.battlefield.iter()
+                        .filter(|p| p.is_creature() && Self::matches_filter(p, filter))
+                        .map(|p| p.id())
+                        .collect();
+                    for id in matching {
+                        if let Some(perm) = self.state.battlefield.get_mut(id) {
+                            perm.apply_damage(*amount);
+                        }
+                    }
+                }
+                Effect::RemoveCounters { counter_type, count } => {
+                    let ct = crate::counters::CounterType::from_name(counter_type);
+                    for &target_id in targets {
+                        if let Some(perm) = self.state.battlefield.get_mut(target_id) {
+                            perm.counters.remove(&ct, *count);
+                        }
+                    }
+                }
+                Effect::SearchLibrary { filter } => {
+                    // Search library for a card matching filter and put it in hand.
+                    // Simplified: find the first matching card.
+                    if let Some(player) = self.state.players.get(&controller) {
+                        let lib_cards: Vec<ObjectId> = player.library.iter().copied().collect();
+                        let found = lib_cards.iter().find(|&&card_id| {
+                            self.state.card_store.get(card_id)
+                                .map(|c| Self::card_matches_filter(c, filter))
+                                .unwrap_or(false)
+                        }).copied();
+                        if let Some(card_id) = found {
+                            if let Some(player) = self.state.players.get_mut(&controller) {
+                                player.library.remove(card_id);
+                                player.hand.add(card_id);
+                                self.state.set_zone(card_id, crate::constants::Zone::Hand, Some(controller));
+                            }
+                        }
+                    }
+                }
+                Effect::CreateTokenTappedAttacking { token_name, count } => {
+                    // Create tokens tapped and attacking (used by Mobilize mechanic)
+                    for _ in 0..*count {
+                        let token_id = ObjectId::new();
+                        let mut card = CardData::new(token_id, controller, token_name);
+                        card.card_types = vec![crate::constants::CardType::Creature];
+                        let (p, t, kw) = Self::parse_token_stats(token_name);
+                        card.power = Some(p);
+                        card.toughness = Some(t);
+                        card.keywords = kw;
+                        let mut perm = Permanent::new(card, controller);
+                        perm.tapped = true;
+                        perm.summoning_sick = false; // Can attack since entering tapped and attacking
+                        self.state.battlefield.add(perm);
+                        self.state.set_zone(token_id, crate::constants::Zone::Battlefield, None);
+                    }
+                }
+                Effect::BoostPermanent { power, toughness: _ } => {
+                    // Permanent P/T boost (similar to BoostUntilEndOfTurn but doesn't expire)
+                    for &target_id in targets {
+                        if let Some(perm) = self.state.battlefield.get_mut(target_id) {
+                            if *power > 0 {
+                                perm.add_counters(CounterType::P1P1, *power as u32);
+                            } else if *power < 0 {
+                                perm.add_counters(CounterType::M1M1, (-*power) as u32);
+                            }
+                        }
+                    }
+                }
+                Effect::SetPowerToughness { power, toughness } => {
+                    // Set base P/T (simplified: adjust via counters to reach target)
+                    for &target_id in targets {
+                        if let Some(perm) = self.state.battlefield.get_mut(target_id) {
+                            let current_p = perm.power();
+                            let current_t = perm.toughness();
+                            let dp = *power - current_p;
+                            let dt = *toughness - current_t;
+                            // Use counters to approximate (imperfect but functional)
+                            if dp > 0 {
+                                perm.add_counters(CounterType::P1P1, dp as u32);
+                            } else if dp < 0 {
+                                perm.add_counters(CounterType::M1M1, (-dp) as u32);
+                            }
+                            let _ = dt; // Toughness adjustment via counters is coupled with power
+                        }
+                    }
+                }
+                Effect::LoseKeyword { keyword } => {
+                    if let Some(kw) = crate::constants::KeywordAbilities::keyword_from_name(keyword) {
+                        for &target_id in targets {
+                            if let Some(perm) = self.state.battlefield.get_mut(target_id) {
+                                perm.removed_keywords |= kw;
+                            }
+                        }
+                    }
+                }
                 _ => {
-                    // Other effects not yet implemented (search library, gain control, etc.)
-                    // These will be handled as cards require them
+                    // Remaining effects not yet implemented (gain control, protection, etc.)
                 }
             }
         }
@@ -1165,6 +1406,107 @@ impl Game {
         }
     }
 
+    /// Parse token stats from a token name string like "4/4 Dragon with flying".
+    /// Returns (power, toughness, keywords).
+    fn parse_token_stats(token_name: &str) -> (i32, i32, crate::constants::KeywordAbilities) {
+        let name = token_name.trim();
+        // Try to match "P/T Name..." pattern at the start
+        let mut power = 1i32;
+        let mut toughness = 1i32;
+        let mut keywords = crate::constants::KeywordAbilities::empty();
+
+        // Check for "P/T " prefix
+        let rest = if let Some(slash_pos) = name.find('/') {
+            if let Ok(p) = name[..slash_pos].parse::<i32>() {
+                // Find end of toughness (next space or end)
+                let after_slash = &name[slash_pos + 1..];
+                let t_end = after_slash.find(' ').unwrap_or(after_slash.len());
+                if let Ok(t) = after_slash[..t_end].parse::<i32>() {
+                    power = p;
+                    toughness = t;
+                    if t_end < after_slash.len() {
+                        &after_slash[t_end + 1..]
+                    } else {
+                        ""
+                    }
+                } else {
+                    name
+                }
+            } else {
+                name
+            }
+        } else {
+            name
+        };
+
+        // Parse "with keyword1[, keyword2...]" or "with keyword1 and keyword2"
+        if let Some(with_pos) = rest.to_lowercase().find("with ") {
+            let kw_str = &rest[with_pos + 5..];
+            for part in kw_str.split(|c: char| c == ',' || c == '&') {
+                let part = part.trim().trim_start_matches("and ").trim();
+                if let Some(kw) = crate::constants::KeywordAbilities::keyword_from_name(part) {
+                    keywords |= kw;
+                }
+            }
+        }
+
+        (power, toughness, keywords)
+    }
+
+    /// Check if a permanent matches a simple filter string.
+    fn matches_filter(perm: &Permanent, filter: &str) -> bool {
+        let f = filter.to_lowercase();
+        // "all" or empty matches everything
+        if f.is_empty() || f == "all" {
+            return true;
+        }
+        // Check creature types
+        for st in &perm.card.subtypes {
+            if f.contains(&st.to_string().to_lowercase()) {
+                return true;
+            }
+        }
+        // Check card types
+        for ct in &perm.card.card_types {
+            let ct_name = format!("{:?}", ct).to_lowercase();
+            if f.contains(&ct_name) {
+                return true;
+            }
+        }
+        // "nonland" filter
+        if f.contains("nonland") && !perm.card.card_types.contains(&crate::constants::CardType::Land) {
+            return true;
+        }
+        false
+    }
+
+    /// Check if a CardData matches a simple filter string.
+    fn card_matches_filter(card: &CardData, filter: &str) -> bool {
+        let f = filter.to_lowercase();
+        if f.is_empty() || f == "all" {
+            return true;
+        }
+        // Check "basic land"
+        if f.contains("basic") && f.contains("land") {
+            return card.supertypes.contains(&crate::constants::SuperType::Basic)
+                && card.card_types.contains(&crate::constants::CardType::Land);
+        }
+        // Check card types
+        for ct in &card.card_types {
+            let ct_name = format!("{:?}", ct).to_lowercase();
+            if f.contains(&ct_name) {
+                return true;
+            }
+        }
+        // Check subtypes
+        for st in &card.subtypes {
+            if f.contains(&st.to_string().to_lowercase()) {
+                return true;
+            }
+        }
+        false
+    }
+
     /// Check if the game should end and return a result if so.
     fn check_game_end(&self) -> Option<GameResult> {
         if !self.state.should_end() {
diff --git a/mtg-rl/mtg-engine/src/state.rs b/mtg-rl/mtg-engine/src/state.rs
index a574012467..88697e8b76 100644
--- a/mtg-rl/mtg-engine/src/state.rs
+++ b/mtg-rl/mtg-engine/src/state.rs
@@ -228,6 +228,18 @@ impl GameState {
         self.object_zones.get(&object_id).map(|loc| loc.zone)
     }
 
+    // ── Graveyard helpers ──────────────────────────────────────────────
+
+    /// Find which player's graveyard contains the given card.
+    pub fn find_card_owner_in_graveyard(&self, card_id: ObjectId) -> Option<PlayerId> {
+        for (&player_id, player) in &self.players {
+            if player.graveyard.contains(card_id) {
+                return Some(player_id);
+            }
+        }
+        None
+    }
+
     // ── Phase/step queries ───────────────────────────────────────────────
 
     /// Whether we are in a main phase (can play sorcery-speed spells/abilities).

The changes look good. The engine changes are substantial -- they implement many previously no-op effects. Let me commit everything together.

git commit -m "$(cat <<'EOF'
Add docs, fix compilation: implement 20+ engine effects and helper methods

- Add CLAUDE.md with project guidance for Java XMage and Rust mtg-rl
- Add mtg-rl/README.md describing the Rust workspace architecture
- Add mtg-rl/ROADMAP.md documenting engine gaps and phased implementation plan
- Fix 14 compilation errors in mtg-engine:
  - Rename KeywordAbilities::from_name to keyword_from_name (conflicts with
    bitflags 2.x auto-generated method)
  - Fix CounterType::Other -> CounterType::Custom
  - Add GameState::find_card_owner_in_graveyard helper
  - Add Game::parse_token_stats (tokens now get correct P/T and keywords
    from name strings like "4/4 Dragon with flying")
  - Add Game::matches_filter and card_matches_filter for effect targeting
- Implement 20+ previously no-op Effect variants in execute_effects():
  Scry, SearchLibrary, ReturnFromGraveyard, Reanimate,
  GainKeywordUntilEndOfTurn, GainKeyword, LoseKeyword, Indestructible,
  Hexproof, CantBlock, Sacrifice, DestroyAll, DealDamageAll,
  RemoveCounters, CreateTokenTappedAttacking, BoostPermanent,
  SetPowerToughness
- Add EOT cleanup for granted/removed keywords and cant_block counters
- All 244 tests passing

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
EOF
)"

[master 006e3f82e9] Add docs, fix compilation: implement 20+ engine effects and helper methods
 8 files changed, 1411 insertions(+), 69 deletions(-)
 create mode 100644 CLAUDE.md
 create mode 100644 mtg-rl/README.md
 create mode 100644 mtg-rl/ROADMAP.md

Done. Here's what was fixed and committed:

Compilation fixes (14 errors):

KeywordAbilities::from_name duplicate -- Renamed our manual impl to keyword_from_name to avoid conflicting with the bitflags! macro's auto-generated from_name
CounterType::Other doesn't exist -- Changed to CounterType::Custom (the actual variant name)
3 missing methods on Game -- Added parse_token_stats, matches_filter, and card_matches_filter
Missing method on GameState -- Added find_card_owner_in_graveyard

Bonus: 20+ Effect implementations that were already in the source but couldn't compile. These are now live:

Scry, SearchLibrary, ReturnFromGraveyard, Reanimate, GainKeywordUntilEndOfTurn, GainKeyword, LoseKeyword, Indestructible, Hexproof, CantBlock, Sacrifice, DestroyAll, DealDamageAll, RemoveCounters, CreateTokenTappedAttacking, BoostPermanent, SetPowerToughness
Token creation now parses P/T and keywords from name strings (e.g. "4/4 Dragon with flying")
EOT cleanup now properly clears granted/removed keywords

All 244 tests pass across all 5 crates.

This session is being continued from a previous conversation that ran out of context. The summary below covers the earlier portion of the conversation.

Analysis:
Let me chronologically analyze the conversation:

First user message: /init command - asking to create/improve a CLAUDE.md file for the repository at /mnt/dest-btrfs/home/jc/src/mage/. The repo is XMage (Java MTG engine) with a Rust sub-project at mtg-rl/.
My response: I explored both the Java and Rust parts of the codebase using parallel Task agents, read existing files (README.md, Makefile, existing CLAUDE.md), and wrote an improved CLAUDE.md that added:
- Filter system section
- Code generation tools section
- mtg-rl Rust workspace section
- Improved existing sections with more detail
Second user message: Create mtg-rl/README.md and mtg-rl/ROADMAP.md. README should describe the Rust implementation. ROADMAP should describe gaps in the engine and partially implemented cards (referencing the docs directory).
My response: I read all 4 remediation docs (fdn-remediation.md, tla-remediation.md, tdm-remediation.md, ecl-remediation.md), explored the engine to identify implementation gaps (using a Task agent), and created both files:
- mtg-rl/README.md - workspace architecture, crate descriptions, build commands, performance, implementation status table
- mtg-rl/ROADMAP.md - engine gaps (effect variants, missing systems), phased implementation plan, per-set status
Third user message: "I noticed that our tests don't compile. Let's fix those, and then commit our current work."
My response:
- Ran cargo check and found 14 compilation errors
- Read relevant source files to understand the issues
- Fixed all 14 errors in 4 categories:
  a. KeywordAbilities::from_name duplicate - renamed to keyword_from_name
  b. CounterType::Other doesn't exist - changed to CounterType::Custom
  c. Missing methods on Game - added parse_token_stats, matches_filter, card_matches_filter
  d. Missing method on GameState - added find_card_owner_in_graveyard
- Ran tests: all 244 passed (52 + 18 + 157 + 17)
- Committed all work with descriptive message

Let me capture all the technical details...

Key files modified:

/mnt/dest-btrfs/home/jc/src/mage/CLAUDE.md - Created/rewritten
/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/README.md - Created
/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/ROADMAP.md - Created
/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/constants.rs - Fixed from_name duplicate
/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs - Major: fixed callers, added 3 helper methods, implemented 20+ Effect variants
/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/state.rs - Added find_card_owner_in_graveyard

The commit was successfully made. Working tree is clean. All tasks from the user have been completed.

Summary:

Primary Request and Intent:
The user made three sequential requests:
- Request 1 (/init): Create/improve a CLAUDE.md file at the repository root (/mnt/dest-btrfs/home/jc/src/mage/) describing the codebase for future Claude Code instances. The repo contains XMage (Java MTG engine, ~31K card files) and mtg-rl/ (Rust reimplementation for RL research, 5 crates, 1,333 cards).
- Request 2: Create mtg-rl/README.md describing the Rust implementation, and mtg-rl/ROADMAP.md describing gaps in the engine and partially implemented cards (referencing existing mtg-rl/docs/*-remediation.md files).
- Request 3: Fix compilation errors in the Rust tests, then commit all current work.
Key Technical Concepts:
- XMage Java project: Maven build, JDK 17+, Java target 1.8, ~31K card files, JUnit 5 test framework
- mtg-rl Rust workspace: 5 crates (mtg-engine, mtg-cards, mtg-ai, mtg-tests, mtg-python), ~36K lines of Rust
- Card factory pattern: Each card is a fn(ObjectId, PlayerId) -> CardData registered in set files
- Effect system: Effect enum with ~35 variants, resolved in Game::execute_effects() match statement
- StaticEffect system: Continuous effects applied via 7-layer system (Copy → Control → Text → Type → Color → Ability → P/T)
- KeywordAbilities: bitflags struct with 47 keyword constants
- Card implementation levels: Complete (typed effects only), Partial (mix of typed and Custom), Stub (all Custom/missing)
- Token stat parsing: New feature to parse "4/4 Dragon with flying" into proper P/T and keywords
- bitflags 2.x: Auto-generates a from_name method that conflicted with our manual implementation
- CounterType enum: Uses Custom(String) variant (not Other)
Files and Code Sections:
- /mnt/dest-btrfs/home/jc/src/mage/CLAUDE.md (created/rewritten)
  - Root-level project guidance for Claude Code instances
  - Covers Java XMage build commands, module architecture, card implementation patterns, filter system, test framework, code generation, and the full mtg-rl Rust workspace section
  - Important because it's the primary context document for future AI sessions
- /mnt/dest-btrfs/home/jc/src/mage/mtg-rl/README.md (created)
  - Documents workspace architecture, all 5 crates with module tables, build/test commands, performance metrics, implementation status summary (287 complete, 332 partial, 650 stub cards)
- /mnt/dest-btrfs/home/jc/src/mage/mtg-rl/ROADMAP.md (created)
  - Documents 7 no-op Effect variants, 14 missing engine systems (equipment, planeswalkers, modal spells, X-costs, fight, token parsing, auras, impulse draw, spell copy, replacement effects, additional combat, behold, earthbend, vivid)
  - 4-phase implementation plan ordered by impact-per-effort
  - Per-set status table linking to remediation docs
- /mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/constants.rs (modified)
  - Fixed duplicate from_name method on KeywordAbilities
  - Renamed our manual implementation to keyword_from_name:
  rust
- /mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/game.rs (major modifications)
  - Changed all 3 occurrences of KeywordAbilities::from_name to KeywordAbilities::keyword_from_name
  - Changed CounterType::Other( to CounterType::Custom( (2 occurrences)
  - Added parse_token_stats helper:
  rust
  - Added matches_filter helper for permanent filtering:
  rust
  - Added card_matches_filter for CardData filtering:
  rust
  - 20+ Effect variants now have implementations in execute_effects(): Scry, SearchLibrary, ReturnFromGraveyard, Reanimate, GainKeywordUntilEndOfTurn, GainKeyword, LoseKeyword, Indestructible, Hexproof, CantBlock, Sacrifice, DestroyAll, DealDamageAll, RemoveCounters, CreateTokenTappedAttacking, BoostPermanent, SetPowerToughness
  - Added EOT cleanup for granted_keywords, removed_keywords, and cant_block counters
  - Token creation now calls parse_token_stats instead of defaulting to 1/1
- /mnt/dest-btrfs/home/jc/src/mage/mtg-rl/mtg-engine/src/state.rs (modified)
  - Added find_card_owner_in_graveyard method to GameState:
  rust
- Remediation docs read (for ROADMAP.md creation):
  - mtg-rl/docs/fdn-remediation.md: FDN 512 cards (95 complete, 126 partial, 267 stub)
  - mtg-rl/docs/tla-remediation.md: TLA 280 cards (39 complete, 22 partial, 219 stub)
  - mtg-rl/docs/tdm-remediation.md: TDM 271 cards (97 complete, 115 partial, 59 stub)
  - mtg-rl/docs/ecl-remediation.md: ECL 230 cards (56 complete, 69 partial, 105 stub)
Errors and Fixes:
- Error: duplicate definitions with name from_name (E0592 on constants.rs:533):
  - bitflags! macro in bitflags 2.x auto-generates a from_name method, conflicting with our manual pub fn from_name(name: &str) -> Option<KeywordAbilities>
  - Fix: Renamed our method to keyword_from_name and updated all 3 callers in game.rs
- Error: no variant or associated item named Other found for enum CounterType (E0599 on game.rs:432):
  - Code used CounterType::Other("cant_block".into()) but the enum's catch-all variant is Custom(String), not Other
  - Fix: Changed all occurrences of CounterType::Other( to CounterType::Custom(
- Error: no function or associated item named parse_token_stats found for struct Game (E0599, 2 occurrences):
  - Method was called but never defined
  - Fix: Implemented Game::parse_token_stats() that parses "P/T Name with keywords" strings
- Error: no method named find_card_owner_in_graveyard found for struct GameState (E0599, 2 occurrences):
  - Method was called in ReturnFromGraveyard and Reanimate effect handlers but never defined
  - Fix: Added GameState::find_card_owner_in_graveyard() that searches all players' graveyards
- Error: no function or associated item named matches_filter found for struct Game (E0599, 2 occurrences):
  - Used in Sacrifice and DestroyAll effect handlers but never defined
  - Fix: Added Game::matches_filter() for permanent filtering by type/subtype
- Error: no function or associated item named card_matches_filter found for struct Game (E0599):
  - Used in SearchLibrary effect handler but never defined
  - Fix: Added Game::card_matches_filter() for CardData filtering
- Error: multiple applicable items in scope for KeywordAbilities::from_name (E0034, 3 occurrences):
  - Same root cause as the first error - duplicate from_name
  - Fix: Same rename to keyword_from_name
- Error: cannot find type KeywordAbilities in this scope (E0412, after initial fix):
  - The new parse_token_stats method used unqualified KeywordAbilities type
  - Fix: Changed to fully qualified crate::constants::KeywordAbilities
Problem Solving:
- Successfully diagnosed that the 14 compilation errors stemmed from partially-implemented new engine features (the effect handlers for Scry, SearchLibrary, etc. had been added to game.rs but their supporting helper methods and correct type references were not)
- The code was in a state where someone had added many new effect match arms but left missing method stubs and incorrect type names
- All 244 tests pass across all 5 crates after fixes (52 mtg-ai + 18 mtg-cards + 157 mtg-engine + 17 mtg-tests)
All User Messages:
- Message 1: /init - "Please analyze this codebase and create a CLAUDE.md file, which will be given to future instances of Claude Code to operate in this repository." (With detailed instructions about what to include/exclude)
- Message 2: "In the @mtg-rl/ directory, let's create a README.md describing the Rust implementation, and a ROADMAP.md describing gaps in the implementation, specifically in the engine and in the cards that are only partially implemented (in the @mtg-rl/docs directory)."
- Message 3: "I noticed that our tests don't compile. Let's fix those, and then commit our current work."
Pending Tasks:
- None. All three user requests have been completed and committed.
Current Work:
The most recent work was fixing 14 compilation errors in mtg-engine and committing all changes. The commit 006e3f82e9 includes:
- 3 new files: CLAUDE.md, mtg-rl/README.md, mtg-rl/ROADMAP.md
- 5 modified files: constants.rs, game.rs, state.rs, tdm.rs, tla-remediation.md
- 1,411 insertions, 69 deletions
- Working tree is clean, branch is master, ahead of origin by 8 commits
Optional Next Step:
No pending tasks. All user requests have been fulfilled and committed. The user would need to provide a new request to continue work.

If you need specific details from before compaction (like exact code snippets, error messages, or content you generated), read the full transcript at: /mnt/dest-btrfs/home/jc/.claude/projects/-mnt-dest-btrfs-home-jc-src-mage/a83bffdc-973c-4730-8a88-2ef219ba63de.jsonl

Caveat: The messages below were generated by the user while running local commands. DO NOT respond to these messages or otherwise consider them in your response unless the user explicitly asks you to.

Caveat: Caveat: The messages below were generated by the user while running local commands. DO NOT respond to these messages or otherwise consider them in your response unless the user explicitly asks you to.

Let's update the remediation docs to clean up the missing effects that were identified in @mtg-rl/docs/ and make sure the @mtg-rl/ROADMAP.md is updated as well.

Let me start by understanding the current state of the remediation docs and what's changed since they were written.

Perfect! Now I have all the information needed. Let me compile the comprehensive summary:

## Summary of Remediation Documentation

### FDN (Foundations)

**Card Counts:**
- Total: 512 unique cards (+ 5 basic lands)
- Complete: 119
- Partial: 126
- Stub: 267
- Missing: 0

**Main Categories of Issues:**
1. **GainKeywordUntilEndOfTurn** — Keyword granting effects not implemented (affects ~20 cards)
2. **Scry mechanic** — Not implemented (affects Opt, Erudite Wizard, Temple lands, etc.)
3. **SearchLibrary** — Tutor effects not implemented (affects Evolving Wilds, Campus Guide, Solemn Simulacrum, etc.)
4. **DestroyAll** — Board wipes not implemented (affects Day of Judgment, Fumigate)
5. **ReturnFromGraveyard** — Graveyard recursion not implemented (affects Reassembling Skeleton, Elvish Regrower)
6. **Reanimate** — Graveyard-to-battlefield not implemented (affects Driver of the Dead, Alesha)
7. **Sacrifice** — Self-sacrifice effects not implemented (affects Ball Lightning)
8. **Equipment system** — Attach/equip mechanics completely missing (affects Basilisk Collar, Swiftfoot Boots)
9. **Modal spells** — No mode selection framework (affects Abrade, Boros Charm, Slagstorm, Valorous Stance)
10. **Token copying** — Cannot copy tokens (affects Electroduplicate, Rite of Replication)
11. **Custom cast effects** — Many Custom stub abilities (affects ~230+ cards in stubs)

**Missing Effect Variants/Engine Features:**
- `Effect::GainKeywordUntilEndOfTurn` (exists but no-op)
- `Effect::Scry` (exists but no-op)
- `Effect::SearchLibrary` (exists but no-op)
- `Effect::DestroyAll` (exists but no-op)
- `Effect::ReturnFromGraveyard` (exists but no-op)
- `Effect::Reanimate` (exists but no-op)
- `Effect::Sacrifice` (exists but no-op)
- `Effect::DealDamageAll` (exists but no-op)
- Equipment system (completely missing)
- Modal spell framework (completely missing)
- Token stat parsing (tokens always 1/1 regardless of name)
- Aura attachment system (missing)
- X-cost spell support (missing)

---

### TLA (Avatar: The Last Airbender)

**Card Counts:**
- Total: 280 unique cards
- Complete: 39
- Partial: 22
- Stub: 219
- Missing: 0

**Main Categories of Issues:**
1. **Earthbend mechanic** — Set-specific action "look at top N, put a land to hand, rest on bottom" not implemented (~15+ cards affected: Badgermole, Earth Kingdom cards, etc.)
2. **Scry mechanic** — Not implemented (affects Compassionate Healer, Glider Kids, Guru Pathik)
3. **Equipment attach/equip** — Missing (affects Glider Staff, Kyoshi Battle Fan, Meteor Sword, Trusty Boomerang, Twin Blades, Bender's Waterskin)
4. **Conditional P/T boost static** — Dynamic boosts not implemented (affects Badgermole, Earth Rumble Wrestlers, lords)
5. **Aura mechanics** — Cannot attach to creatures (affects Path to Redemption, Swampsnare Trap, Watery Grasp)
6. **Learn keyword action** — Lesson-related keyword not implemented (affects Cat-Owl, Boomerang Basics)
7. **Crew (Vehicle)** — Vehicle mechanics missing (affects Fire Nation Warship, Phoenix Fleet Airship, War Balloon, Tundra Tank, The Fire Nation Drill)
8. **Fight effect** — Creature vs creature damage assignment missing (affects Earth Rumble, The Last Agni Kai, The Unagi)
9. **Dual-land mana abilities** — Many lands incomplete (affects Foggy Bottom Swamp, North Pole Gates)
10. **ReturnFromGraveyard** — Not functional (affects Merchant of Many Hats, Cycle of Renewal)
11. **Token improvements** — Token type specification needed ("1/1 black Human Rogue token tapped and attacking")
12. **Custom effects** — ~219 stub cards entirely Custom placeholders

**Missing Effect Variants/Engine Features:**
- `Effect::Earthbend` or `Effect::SearchTopN` (completely new)
- `Effect::Scry` (exists but no-op)
- Equipment system (completely missing)
- Conditional P/T boost statics
- Aura attachment
- Learn action
- Crew mechanic
- Fight effect
- ReturnFromGraveyard (exists but no-op)
- Token type/modifier parsing
- Dual mana abilities on lands

---

### TDM (Tarkir: Dragonstorm)

**Card Counts:**
- Total: 271 unique cards
- Complete: 97
- Partial: 115
- Stub: 59
- Missing: 0

**Main Categories of Issues:**
1. **Scry mechanic** — Not implemented (~10 cards: Boulderborn Dragon, Cruel Truths, Poised Practitioner, Dragonologist x2, Corroding Dragonstorm, Essence Anchor, Mistrise Village, Nightblade Brigade)
2. **SearchLibrary** — Not implemented (~10 cards: Roamer's Routine, Fangkeeper's Familiar, Encroaching Dragonstorm, Monuments, Dragonstorm Forecaster, Tempest Hawk)
3. **ReturnFromGraveyard** — Not implemented (~8 cards: Furious Forebear, Auroral Procession, Duty Beyond Death, Salt Road Packbeast, Sultai Devotee, Heritage Reclamation, Fire-Rim Form, Wayspeaker Bodyguard)
4. **GainKeywordUntilEndOfTurn** — Not implemented (~12 cards: Alesha's Legacy, Lightfoot Technique, Wild Ride, Formation Breaker, etc.)
5. **Sacrifice** — Not implemented (~3 cards: Aggressive Negotiations, Bone-Cairn Butcher)
6. **Token stat parsing** — Tokens always 1/1 regardless of name specification (~5 cards: Mammoth Bellow (5/5), Teeming Dragonstorm (2/2), Abzan Monument (X/X))
7. **Saga framework** — Enchantment Saga not implemented (5 cards: Awaken the Honored Dead, Rediscover the Way, Revival of the Ancestors, Roar of Endless Song, Thunder of Unity)
8. **Modal spells** — No mode selection (~8 cards: Coordinated Maneuver, Frontline Rush, Sarkhan's Resolve, Seize Opportunity, Riverwalk Technique, Overwhelming Surge, Rally the Monastery, Wail of War)
9. **Missing mana costs** — Several cards lack mana_cost field (3+ cards: Bloomvine Regent, Scavenger Regent, Dirgur Island Dragon, Runescale Stormbrood, Marang River Regent)
10. **Stub cards** — 59 cards are entirely stubs with no abilities implemented

**Missing Effect Variants/Engine Features:**
- `Effect::Scry` (exists but no-op)
- `Effect::SearchLibrary` (exists but no-op)
- `Effect::ReturnFromGraveyard` (exists but no-op)
- `Effect::GainKeywordUntilEndOfTurn` (exists but no-op)
- `Effect::Sacrifice` (exists but no-op)
- Token stat parsing
- Saga framework (completely new)
- Modal spell support
- Custom stubs (~59 cards)

---

### ECL (Lorwyn Eclipsed)

**Card Counts:**
- Total: 230 unique cards (excluding basic lands)
- Complete: 56
- Partial: 69
- Stub: 105
- Missing: 0

**Main Categories of Issues:**
1. **GainKeywordUntilEndOfTurn** — Not implemented (affects Burdened Stoneback, Flame-Chain Mauler, Iron-Shield Elf, Kulrath Mystic, Scarblades Malice, Stratosoarer, many more)
2. **Scry/Surveil** — Not implemented (affects Lys Alana Informant, Shore Lurker, Unwelcome Sprite, Heirloom Auntie, Dawnhand Dissident, Morcant's Eyes)
3. **RemoveCounters** — Not implemented (affects Encumbered Reejerey, Reluctant Dounguard, Bristlebane Battler, Heirloom Auntie, Creakwood Safewright, Slumbering Walker)
4. **ReturnFromGraveyard and Reanimate** — Not implemented (~7 cards: Dundoolin Weaver, Graveshifter, Midnight Tilling, Dose of Dawnglow, Emptiness, Bre of Clan Stoutarm, Dawn-Blessed Pennant)
5. **SearchLibrary** — Not implemented (affects Changeling Wayfinder, Kulrath Zealot, Celestial Reunion, Tend the Sprigs)
6. **Vivid mechanic** — Count colors among permanents for dynamic X values (~8 cards: Explosive Prodigy, Glister Bairn, Luminollusk, Prismabasher, Shimmercreep, Shinestriker, Squawkroaster, Rime Chill)
7. **Shock land ETB replacement** — "Deals 2 damage, you lose 2 life" not implemented (5 lands: Blood Crypt, Hallowed Fountain, Overgrown Tomb, Steam Vents, Temple Garden)
8. **Equipment attach/equip** — Missing (affects Barbed Bloodletter, Bark of Doran, Stalactite Dagger, Mirrormind Crown)
9. **Behold mechanic** — Set-specific reveal-and-exile-from-hand mechanic (~15+ cards: Champion of the Weird, Champions of the Perfect, Molten Exhale, Osseous Exhale)
10. **Custom effects** — ~105 stub cards entirely Custom placeholders

**Missing Effect Variants/Engine Features:**
- `Effect::GainKeywordUntilEndOfTurn` (exists but no-op)
- `Effect::Scry` / `Effect::Surveil` (exists but no-op)
- `Effect::RemoveCounters` (likely exists but no-op)
- `Effect::ReturnFromGraveyard` (exists but no-op)
- `Effect::Reanimate` (exists but no-op)
- `Effect::SearchLibrary` (exists but no-op)
- Vivid mechanic (completely new)
- Shock land replacement effect
- Equipment system (completely missing)
- Behold mechanic (completely new)
- Custom stubs (~105 cards)

---

### ROADMAP.md Summary

The ROADMAP identifies these high-priority systemic fixes needed across all sets:

**Phase 1: High-Impact Engine Effects**
1. Token stat parsing (unblocks ~30 cards)
2. Fix easy card-level bugs using existing typed variants
3. Fight mechanic (unblocks ~10 cards)

**Phase 2: Key Missing Mechanics**
4. Equipment system (unblocks ~15 cards)
5. Modal spells (unblocks ~20 cards)
6. Impulse draw/exile-and-play (unblocks ~10 cards)
7. Earthbend (TLA-specific, unblocks ~20 cards)

**Phase 3: Advanced Systems**
8. Replacement effects pipeline (required for damage prevention, death replacement, Doubling Season)
9. X-cost spells (unblocks ~10 cards)
10. Aura attachment (unblocks ~10 cards)
11. Spell copy (unblocks ~8 cards)
12. Planeswalker system (unblocks ~10 cards)
13. Additional combat phases (unblocks ~3 cards)

**Phase 4: Set-Specific Mechanics**
14. Behold (ECL)
15. Vivid (ECL)
16. Learn (TLA)
17. Renew (TDM)
18. Mobilize (TDM)

The four remediation docs total **1,333 cards** across 1,512 registrations, with **287 complete cards**, **332 partial cards**, **650 stub cards**, and **0 missing cards**.
agentId: abc6727 (for resuming to continue this agent's work if needed)
<usage>total_tokens: 62031
tool_uses: 19
duration_ms: 50430</usage>

Now I need to understand what effects were actually implemented since the remediation docs were written. The key changes from the previous session were:

In game.rs, the following Effect variants were implemented:
- Scry
- SearchLibrary
- ReturnFromGraveyard
- Reanimate
- GainKeywordUntilEndOfTurn
- GainKeyword
- LoseKeyword
- Indestructible
- Hexproof
- CantBlock
- Sacrifice
- DestroyAll
- DealDamageAll
- RemoveCounters
- CreateTokenTappedAttacking
- BoostPermanent
- SetPowerToughness
Token stat parsing was added (parse_token_stats)
matches_filter and card_matches_filter helpers were added

So the remediation docs say these effects are "no-op" but they're now implemented. I need to read the current game.rs to verify exactly which effects are now implemented, update each remediation doc to reflect the new status, and update ROADMAP.md accordingly.

Now let me check what effects are actually implemented in the current engine to see what's changed since the docs were written.

Let me check the implementations directly.

951:                Effect::DealDamage { amount } => {
969:                Effect::Destroy => {
981:                Effect::Exile => {
990:                Effect::Bounce => {
1002:                Effect::DrawCards { count } => {
1005:                Effect::GainLife { amount } => {
1010:                Effect::LoseLife { amount } => {
1017:                Effect::DealDamageOpponents { amount } => {
1028:                Effect::AddCounters { counter_type, count } => {
1036:                Effect::BoostUntilEndOfTurn { power, toughness: _ } => {
1049:                Effect::TapTarget => {
1056:                Effect::UntapTarget => {
1063:                Effect::CounterSpell => {
1076:                Effect::AddMana { mana } => {
1081:                Effect::DiscardCards { count } => {
1099:                Effect::Mill { count } => {
1108:                Effect::CreateToken { token_name, count } => {
1124:                Effect::Scry { count } => {
1148:                Effect::ReturnFromGraveyard => {
1163:                Effect::Reanimate => {
1180:                Effect::GainKeywordUntilEndOfTurn { keyword } => {
1189:                Effect::GainKeyword { keyword } => {
1199:                Effect::Indestructible => {
1207:                Effect::Hexproof => {
1215:                Effect::CantBlock => {
1229:                Effect::Sacrifice { filter } => {
1252:                Effect::DestroyAll { filter } => {
1265:                Effect::DealDamageAll { amount, filter } => {
1277:                Effect::RemoveCounters { counter_type, count } => {
1285:                Effect::SearchLibrary { filter } => {
1304:                Effect::CreateTokenTappedAttacking { token_name, count } => {
1321:                Effect::BoostPermanent { power, toughness: _ } => {
1333:                Effect::SetPowerToughness { power, toughness } => {
1351:                Effect::LoseKeyword { keyword } => {
1889:            vec![Effect::DealDamage { amount: 1 }],
1956:            vec![Effect::DealDamage { amount: 3 }],
2018:            vec![Effect::Destroy],
2067:        game.execute_effects(&[Effect::DrawCards { count: 2 }], p1, &[]);
2097:        game.execute_effects(&[Effect::GainLife { amount: 5 }], p1, &[]);
2132:        game.execute_effects(&[Effect::Exile], p1, &[bear_id]);
2170:        game.execute_effects(&[Effect::Bounce], p1, &[bear_id]);

64:pub enum Effect {
65-    // -- Damage --
66-    /// Deal damage to target creature or player.
67-    DealDamage { amount: u32 },
68-    /// Deal damage to each creature.
69-    DealDamageAll { amount: u32, filter: String },
70-    /// Deal damage to each opponent.
71-    DealDamageOpponents { amount: u32 },
72-
73-    // -- Life --
74-    /// Gain life.
75-    GainLife { amount: u32 },
76-    /// Lose life (target player).
77-    LoseLife { amount: u32 },
78-    /// Set life total.
79-    SetLife { amount: i32 },
80-
81-    // -- Destroy / Remove --
82-    /// Destroy target permanent.
83-    Destroy,
84-    /// Destroy all permanents matching filter.
85-    DestroyAll { filter: String },
86-    /// Exile target permanent.
87-    Exile,
88-    /// Sacrifice a permanent (owner chooses).
89-    Sacrifice { filter: String },
90-    /// Return target permanent to hand.
91-    Bounce,
92-    /// Return target card from graveyard to hand.
93-    ReturnFromGraveyard,
94-    /// Return target card from graveyard to battlefield.
95-    Reanimate,
96-
97-    // -- Cards --
98-    /// Draw cards.
99-    DrawCards { count: u32 },
100-    /// Discard cards.
101-    DiscardCards { count: u32 },
102-    /// Mill cards (library to graveyard).
103-    Mill { count: u32 },
104-    /// Scry N (look at top N, put any on bottom in any order).
105-    Scry { count: u32 },
106-    /// Search library for a card.
107-    SearchLibrary { filter: String },
108-
109-    // -- Counters --
110-    /// Put counters on target.
111-    AddCounters { counter_type: String, count: u32 },
112-    /// Remove counters from target.
113-    RemoveCounters { counter_type: String, count: u32 },
114-
115-    // -- Tokens --
116-    /// Create token creatures.
117-    CreateToken { token_name: String, count: u32 },
118-    /// Create tokens that enter tapped and attacking, then sacrifice at next end step.
119-    /// (Used by TDM Mobilize mechanic.)
120-    CreateTokenTappedAttacking { token_name: String, count: u32 },
121-
122-    // -- Mana --
123-    /// Add mana to controller's pool.
124-    AddMana { mana: Mana },
125-
126-    // -- Combat --
127-    /// Target creature can't block this turn.
128-    CantBlock,
129-    /// Target creature must block this turn.
130-    MustBlock,
131-    /// Prevent combat damage.
132-    PreventCombatDamage,
133-
134-    // -- Stats --
135-    /// Give +N/+M until end of turn.
136-    BoostUntilEndOfTurn { power: i32, toughness: i32 },
137-    /// Give +N/+M permanently (e.g. from counters, applied differently).
138-    BoostPermanent { power: i32, toughness: i32 },
139-    /// Set power and toughness.
140-    SetPowerToughness { power: i32, toughness: i32 },
141-
142-    // -- Keywords --
143-    /// Grant a keyword ability until end of turn.
144-    GainKeywordUntilEndOfTurn { keyword: String },

64:pub enum Effect {
65-    // -- Damage --
66-    /// Deal damage to target creature or player.
67-    DealDamage { amount: u32 },
68-    /// Deal damage to each creature.
69-    DealDamageAll { amount: u32, filter: String },
70-    /// Deal damage to each opponent.
71-    DealDamageOpponents { amount: u32 },
72-
73-    // -- Life --
74-    /// Gain life.
75-    GainLife { amount: u32 },
76-    /// Lose life (target player).
77-    LoseLife { amount: u32 },
78-    /// Set life total.
79-    SetLife { amount: i32 },
80-
81-    // -- Destroy / Remove --
82-    /// Destroy target permanent.
83-    Destroy,
84-    /// Destroy all permanents matching filter.
85-    DestroyAll { filter: String },
86-    /// Exile target permanent.
87-    Exile,
88-    /// Sacrifice a permanent (owner chooses).
89-    Sacrifice { filter: String },
90-    /// Return target permanent to hand.
91-    Bounce,
92-    /// Return target card from graveyard to hand.
93-    ReturnFromGraveyard,
94-    /// Return target card from graveyard to battlefield.
95-    Reanimate,
96-
97-    // -- Cards --
98-    /// Draw cards.
99-    DrawCards { count: u32 },
100-    /// Discard cards.
101-    DiscardCards { count: u32 },
102-    /// Mill cards (library to graveyard).
103-    Mill { count: u32 },
104-    /// Scry N (look at top N, put any on bottom in any order).
105-    Scry { count: u32 },
106-    /// Search library for a card.
107-    SearchLibrary { filter: String },
108-
109-    // -- Counters --
110-    /// Put counters on target.
111-    AddCounters { counter_type: String, count: u32 },
112-    /// Remove counters from target.
113-    RemoveCounters { counter_type: String, count: u32 },
114-
115-    // -- Tokens --
116-    /// Create token creatures.
117-    CreateToken { token_name: String, count: u32 },
118-    /// Create tokens that enter tapped and attacking, then sacrifice at next end step.
119-    /// (Used by TDM Mobilize mechanic.)
120-    CreateTokenTappedAttacking { token_name: String, count: u32 },
121-
122-    // -- Mana --
123-    /// Add mana to controller's pool.
124-    AddMana { mana: Mana },
125-
126-    // -- Combat --
127-    /// Target creature can't block this turn.
128-    CantBlock,
129-    /// Target creature must block this turn.
130-    MustBlock,
131-    /// Prevent combat damage.
132-    PreventCombatDamage,
133-
134-    // -- Stats --
135-    /// Give +N/+M until end of turn.
136-    BoostUntilEndOfTurn { power: i32, toughness: i32 },
137-    /// Give +N/+M permanently (e.g. from counters, applied differently).
138-    BoostPermanent { power: i32, toughness: i32 },
139-    /// Set power and toughness.
140-    SetPowerToughness { power: i32, toughness: i32 },
141-
142-    // -- Keywords --
143-    /// Grant a keyword ability until end of turn.
144-    GainKeywordUntilEndOfTurn { keyword: String },
145-    /// Grant a keyword ability permanently.
146-    GainKeyword { keyword: String },
147-    /// Remove a keyword ability.
148-    LoseKeyword { keyword: String },
149-
150-    // -- Control --
151-    /// Gain control of target.
152-    GainControl,
153-    /// Gain control of target until end of turn.
154-    GainControlUntilEndOfTurn,
155-
156-    // -- Tap --
157-    /// Tap target permanent.
158-    TapTarget,
159-    /// Untap target permanent.
160-    UntapTarget,
161-
162-    // -- Counter spells --
163-    /// Counter target spell.
164-    CounterSpell,
165-
166-    // -- Protection --
167-    /// Target gains protection from a color/quality until end of turn.
168-    GainProtection { from: String },
169-    /// Target becomes indestructible until end of turn.
170-    Indestructible,
171-    /// Target gains hexproof until end of turn.
172-    Hexproof,
173-
174-    // -- Misc --
175-    /// A custom/complex effect described by text. The game engine or card
176-    /// code handles the specific implementation.
177-    Custom(String),
178-}
179-
180-// ---------------------------------------------------------------------------
181-// Target specification for abilities
182-// ---------------------------------------------------------------------------
183-
184-/// Describes what an ability can target.

852:pub enum StaticEffect {
853-    /// Boost P/T of matching permanents.
854-    Boost {
855-        filter: String,
856-        power: i32,
857-        toughness: i32,
858-    },
859-    /// Grant a keyword to matching permanents.
860-    GrantKeyword {
861-        filter: String,
862-        keyword: String,
863-    },
864-    /// Remove a keyword from matching permanents.
865-    RemoveKeyword {
866-        filter: String,
867-        keyword: String,
868-    },
869-    /// Prevent matching permanents from attacking.
870-    CantAttack {
871-        filter: String,
872-    },
873-    /// Prevent matching permanents from blocking.
874-    CantBlock {
875-        filter: String,
876-    },
877-    /// Reduce cost of matching spells.
878-    CostReduction {
879-        filter: String,
880-        amount: u32,
881-    },
882-    /// Matching permanents enter the battlefield tapped.
883-    EntersTapped {
884-        filter: String,
885-    },
886-    /// Other players can't gain life.
887-    CantGainLife,
888-    /// Other players can't draw extra cards.
889-    CantDrawExtraCards,
890-    /// Custom continuous effect.
891-    Custom(String),
892-}
893-
894-// ---------------------------------------------------------------------------
895-// AbilityStore — stores abilities by source
896-// ---------------------------------------------------------------------------
897-
898-/// Stores all abilities for all objects in the game.
899-#[derive(Clone, Debug, Default, Serialize, Deserialize)]
900-pub struct AbilityStore {
901-    /// All abilities, keyed by their unique AbilityId.
902-    abilities: std::collections::HashMap<AbilityId, Ability>,
903-    / Index: source ObjectId → list of AbilityIds.
904-    by_source: std::collections::HashMap<ObjectId, Vec<AbilityId>>,
905-}
906-
907-impl AbilityStore {
908-    pub fn new() -> Self {
909-        Self::default()
910-    }
911-
912-    /// Register an ability for a source object.

Now let me check which Effect variants fall through to the catch-all:

Good. Now I have a clear picture. The _ => {} catch-all at line 1360 catches these unimplemented Effect variants:

SetLife
MustBlock
PreventCombatDamage
GainControl
GainControlUntilEndOfTurn
GainProtection
Custom(String)

These are now implemented (since the last session's fixes):

Scry, SearchLibrary, ReturnFromGraveyard, Reanimate
GainKeywordUntilEndOfTurn, GainKeyword, LoseKeyword
Indestructible, Hexproof, CantBlock
Sacrifice, DestroyAll, DealDamageAll
RemoveCounters, CreateTokenTappedAttacking
BoostPermanent, SetPowerToughness
Token stat parsing (in CreateToken)

Now let me read the current remediation docs to update them.

OK, I have a very clear picture now. The remediation docs all claim these effects are "no-ops":

Scry
SearchLibrary
ReturnFromGraveyard
Reanimate
GainKeywordUntilEndOfTurn
GainKeyword
LoseKeyword
Indestructible
Hexproof
CantBlock
Sacrifice
DestroyAll
DealDamageAll
RemoveCounters
CreateTokenTappedAttacking
BoostPermanent
SetPowerToughness
Token stat parsing (CreateToken now parses stats from token_name)

But all of these have actually been implemented in game.rs since the last session, so the docs are completely out of date. The only remaining no-ops are SetLife, MustBlock, PreventCombatDamage, GainControl, GainControlUntilEndOfTurn, GainProtection, and Custom(String). This is a major update that requires me to revise the "Working Effects" and "Non-functional Effects" tables across all four remediation docs and reclassify many cards that should move from "Partial" status.

I need to systematically go through each remediation doc to move the newly-implemented effects from no-op to working, check which Partial and Stub cards can now be reclassified to Complete since their broken effects are fixed, update the overview counts, and refresh the ROADMAP to reflect these changes. I've got a lot of ground to cover with these documentation updates across multiple files. Rather than manually editing each one line by line, I should write comprehensive updates to the core sections about implemented effects, then systematically go through each set to reclassify cards that are no longer partial due to newly implemented mechanics. Let me start by identifying which cards in each set can be upgraded based on what's now working.

For FDN, I'm looking at cards that were marked partial because certain effects weren't implemented—things like SearchLibrary, Scry, and GainKeywordUntilEndOfTurn. Now that these are working, I need to check each one: Campus Guide and Evolving Wilds depend on whether the SearchLibrary implementation correctly handles "search for basic land, put in hand" and tapped placement. Erudite Wizard, Axgard Cavalry, Surrak the Hunt Caller, and Wildheart Invoker should all move to Complete since their keyword-granting effects are now functional. I need to continue through the rest of the cards in this list and then move on to the other sets. I see that Day of Judgment uses a Custom implementation instead of the DestroyAll variant that's now available, so it's still broken unless the card code was updated. Moving through the remaining cards, I'm finding that ReturnFromGraveyard, Scry, GainKeywordEOT, and Sacrifice are all working now, which fixes Macabre Waltz, Opt, Divine Resilience, Ball Lightning, and Elvish Regrower.

But I'm realizing I need to be more careful here—some cards use typed Effect variants like Effect::Scry which are now fixed, while others use Effect::Custom(...) with text descriptions, and those Custom ones are still no-ops. So I need to distinguish between which cards actually got fixed versus which ones are still broken because they're relying on Custom implementations.

Looking at the FDN cards specifically, the ones using typed variants are working: Scry effects like Erudite Wizard and Opt, SearchLibrary effects like Campus Guide and Evolving Wilds, keyword granting effects like Axgard Cavalry and Sure Strike, and graveyard return effects like Reassembling Skeleton and Angelic Destiny. Now I'm checking which cards used Reanimate typed effects.

Driver of the Dead is working with the Reanimate fix. Ball Lightning works with the Sacrifice effect. Day of Judgment is still broken though—the doc shows it uses a Custom effect for destroying all creatures rather than the typed DestroyAll, so that one needs a different fix. I'm also tracking which cards use DealDamageAll and Hexproof typed effects, with Blossoming Defense confirmed working for the Hexproof case.

Rather than verify every card's source code individually, I should focus on updating the documentation—the engine context sections showing which effects are now implemented, the ROADMAP.md to reflect completed items, and flagging cards where the docs explicitly mention they use a now-working typed variant.

I'll use a systematic approach with scripts to make these changes across all four docs efficiently. The updates needed are consistent: moving the 17 newly-implemented effects from the non-functional list to working, updating the token creation note, and revising the roadmap priorities accordingly. I see the user wants me to update the remediation docs to reflect newly implemented effects and clean up the ROADMAP. Looking at what needs to change, the main work is updating the "Working Effects" tables across all four docs to include the effects that are now complete: Scry, SearchLibrary, ReturnFromGraveyard, Reanimate, GainKeywordUntilEndOfTurn, GainKeyword, LoseKeyword, Indestructible, Hexproof, CantBlock, Sacrifice, and Destroy. I could parallelize this with agents, but given how precise these edits need to be across multiple documents, I should map out exactly what changes go where first before executing them. I'm debating the best approach here—whether to do a full reclassification of all the Partial cards or just update the engine context and roadmap. Given the scope, I think a thorough update makes sense, so I'll start by updating the engine context and ROADMAP across all four docs, then work through the card reclassifications systematically by scanning each Partial section to identify which cards can move to Complete based on the newly-implemented effects.

Now I have a clear picture. Since the last session, 17 Effect variants were implemented in game.rs that all 4 docs claim are "no-ops", plus token stat parsing was added. Let me update everything systematically.

Let me start with parallel updates - ROADMAP.md and all 4 remediation docs.

Good. Now I have all the info I need. Let me plan the updates and execute them in parallel.

The key change: 17 Effect variants that all docs claim are "no-ops" are now implemented, plus token stat parsing works. Here's what changed:

Newly implemented (were no-ops):

Scry, SearchLibrary, ReturnFromGraveyard, Reanimate
GainKeywordUntilEndOfTurn, GainKeyword, LoseKeyword
Indestructible, Hexproof, CantBlock
Sacrifice, DestroyAll, DealDamageAll
RemoveCounters, CreateTokenTappedAttacking
BoostPermanent, SetPowerToughness
Token stat parsing (CreateToken now parses P/T and keywords from token_name)

Still no-ops:

SetLife, MustBlock, PreventCombatDamage
GainControl, GainControlUntilEndOfTurn, GainProtection
Custom(String)

Let me update all 5 files in parallel using agents.

All four changes have been applied correctly. Here is a summary of what was changed in `/mnt/dest-btrfs/home/jc/src/mage/mtg-rl/ROADMAP.md`:

1. **Line 11 (Effect Variants table):** Added a paragraph above the no-op table listing all 17 Effect variants that now have working implementations in `execute_effects()`, plus the note about token stat parsing in `CreateToken`.

2. **Lines 55-56 (Token Stat Parsing section):** Changed the header to struck-through with "(DONE)" and replaced the bullet-point description with a concise statement that `CreateToken` now parses P/T and keywords from `token_name` strings.

3. **Line 112 (Phase 1, item 1):** Added "**DONE**" marker to the token stat parsing phase item. Items 2 (fix easy card-level bugs) and 3 (fight mechanic) were left unchanged.

4. **Line 168 (Per-Set Status table):** Added an italicized note below the table: "*Note: These counts are outdated -- see the individual remediation docs for current status.*"
agentId: aea5b06 (for resuming to continue this agent's work if needed)
<usage>total_tokens: 28791
tool_uses: 6
duration_ms: 40483</usage>

Ran sub-agentUpdate FDN remediation doc effects

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