NeoAttributeModify 1.3.0

New Features

Entity Attribute System

• Added support for modifying mob attributes through datapacks.
• Configure individual entities or entire groups using entity tags.
• Supports vanilla and modded attributes.
• Added entity attribute operations: add, set, multiply_base, and multiply_total.
• Entity-specific rules take priority over matching entity tag rules.
• Attribute changes are automatically applied when mobs spawn, load, or when datapacks are reloaded.
• Preserves existing health and attribute modifiers from other mods.
• Improved attribute persistence and cleanup when rules are modified or removed.

Entity Effects

• Added configurable passive status effects for mobs.
• Added on-hit effects that apply status effects to attacked targets.
• Supports customizable effect levels, durations, probabilities, particles, and icons.
• Added support for direct attacks, mob-attributed projectiles, and area-based damage.
• Passive effects support infinite duration.
• Improved protection of status effects applied by Minecraft or other mods.
• Added read-only information about known and observed mob effects.
• Entity attributes, passive effects, and on-hit effects can be configured together in the same datapack files.

New Entity Editor

• Added /attributemodify_entity_editor.
• Create and modify entity rules directly in-game.
• Search for entities, entity tags, attributes, and effect information.
• Added server-provided entity catalogs and attribute information.
• Added Apply, Save, and Reload workflows.
• Added validation, conflict detection, and protection against overwriting rules from external datapacks.
• Improved handling of large entity catalogs and network responses.

Redesigned Item Editor

• Introduced the updated item editor interface from AttributeModify 1.3.0.
• Added searchable item, tag, and attribute selection.
• Improved navigation between Attributes, Mining, and Durability settings.
• Added improved scrolling and draggable scrollbars.
• Improved rule editing, confirmation dialogs, and save/reload feedback.
• Added base mining and durability information for supported items.
• The item editor is now opened with /attributemodify_editor.

Improvements

• Ported major AttributeModify 1.3.0 features to NeoForge 1.21.1.
• Improved compatibility with Minecraft 1.21.1 attribute and equipment systems.
• Improved mining speed and harvest-tier handling.
• Added support for explicitly identified custom mining-tier block tags.
• Improved handling of vanilla mining-tier identifiers and aliases.
• Improved entity attribute synchronization and datapack reload behavior.
• Improved editor responsiveness, navigation, and state management.
• Added an option to disable additional attribute tooltip formatting.
• Improved multiplayer packet validation and editor permission checks.
• Improved protection against invalid or conflicting datapack rules.
• Improved handling of large server-side entity metadata.

Fixes & Stability

• Fixed incorrect mining-tier resolution for namespaced vanilla tiers.
• Fixed mining speed calculations for tools with low effective mining speeds.
• Fixed potential stale entity modifiers after datapack changes.
• Improved health preservation when updating entity attributes.
• Fixed several editor synchronization and stale-response issues.
• Improved Save and Reload transaction safety.
• Prevented unauthorized or conflicting editor changes from overwriting external datapacks.
• Improved recovery from malformed entity catalogs and invalid editor snapshots.
• Improved datapack reload validation and rollback behavior.
• Improved compatibility with foreign attribute modifiers and externally applied status effects.