Steve AI

Steve AI 1.5.0

This release focuses on reliability, safer AI actions, multiplayer behavior, and Forge packaging.

Highlights

• AI planning no longer blocks the Minecraft server thread.
• New commands replace outdated plans, and stopped plans cannot resume later.
• LLM responses are parsed and validated before any Minecraft action runs.
• Procedural structure building works again when no NBT template is available.
• Collaborative builds now distribute work correctly, avoid duplicate block claims, and stay isolated by dimension.
• The release JAR now includes the Caffeine and Resilience4j libraries required at runtime.

Gameplay and action fixes

• Added strict validation for action names, coordinates, quantities, block lists, and structure dimensions.
• Protected regions are now respected when mining, placing blocks, building structures, and placing mining torches.
• Mining only counts blocks that Minecraft successfully destroyed.
• Tunnel mining no longer removes the floor below Steve.
• Resource gathering now delegates to the real mining action instead of returning a placeholder result.
• The unfinished crafting action is no longer exposed as a supported AI action.
• Combat now attacks at the intended rate instead of applying damage every tick.
• Pathfinding, following, and block placement stop navigation cleanly after a timeout.
• Action failures are contained so one broken action cannot break Steve's entire tick loop.
• Action interceptors now receive start, completion, and failure events.

Structures

• Fixed a bug that prevented all procedural structures from being generated.
• Collaborative construction can now be completed by a single Steve across every build section.
• Cancelled, failed, and timed-out builds release their shared state correctly.
• Completed structures are registered only after every block has been processed.
• Structure templates preserve block-state properties such as door halves and orientation data.
• External NBT templates can be loaded from the structures directory.
• Invalid template names are rejected to prevent unsafe file paths.
• Generated houses now place valid upper and lower door blocks.

Server and multiplayer

• Removed client-only GUI references from common server code.
• Client GUI registration now happens exclusively during client setup.
• Steve entities are reconciled with the manager after world and chunk loading.
• Steve names are validated, case-insensitive, and limited to command-safe characters.
• Duplicate names and failed entity spawns no longer leave stale manager entries.
• Steve action executors are created lazily after persisted names are loaded.
• Event-bus executors are shut down when their Steve entity is removed.
• Commands that spawn, remove, stop, or direct a Steve now require operator permission level 2.

AI provider reliability

• Fixed asynchronous retry handling so failed futures are retried correctly.
• Cache keys now include request parameters, preventing responses with different settings from colliding.
• Replaced the external SHA-256 helper with Java's built-in implementation.
• Improved fallback intent matching and removed unsafe default actions for unknown requests.
• Gemini API keys are sent through the x-goog-api-key header instead of the request URL.
• Improved handling of malformed, fenced, nested, or partially invalid JSON responses.

Client fixes

• Fixed duplicate GUI ticking when the overlay screen was open.
• The GUI now reads Steve entities from the client world instead of server-only singleton state.
• GUI commands are sent through the normal client-to-server command connection.

Packaging and compatibility

• Added ForgeGradle Jar-in-Jar metadata and embedded runtime dependencies.
• Added the missing Gradle wrapper JAR so ./gradlew works from a fresh clone.
• Release builds can receive their version from the Git tag.
• Tightened metadata compatibility to Minecraft 1.20.1 and Forge 47.x.
• Updated the example token limit to match the runtime default of 8,000 tokens.

Tests

• Added regression coverage for LLM response parsing, fallback behavior, retries, task validation, collaborative construction, and event-bus inheritance.
• Current test result: 20 tests passed, 0 failed.

Known limitation

• Crafting is not implemented in this release and is intentionally rejected instead of reporting false success.