Changelog

All notable changes to this package will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

[2.9.0-pre.2] - 2026-05-21

Added

  • Added no subscription banner.

Fixed

  • Fixed video-to-motion not working in Assistant.

[2.9.0-pre.1] - 2026-05-20

Added

  • Client-side TTFT analytics events (AIAssistantGatewayTtftEvent, AIAssistantUserMessageTtftEvent) to measure prompt-to-first-chunk latency for Gateway and AIA pipelines.
  • Unity.EditPlan tool for surgical revisions to existing plan files with snippet-diff display in the permission card.
  • View button on permission prompts that opens the full action + raw input in the expanded panel.

Changed

  • Changed the What's New link.
  • Unity.ExitPlanMode description references both WritePlan and EditPlan as preconditions.
  • Unity.WritePlan and Unity.EditPlan now restricted to Assets/Plans/ (was: anywhere in project).
  • Unity.WritePlan description tightened to creation-only; revisions now route through Unity.EditPlan.

Fixed

  • Expanded panel title no longer squashed against the back button on non-PlanReview panels (CodeEdit etc.) due to a redundant flex-grow: 0 rule.
  • Gateway connection limit override set in developer tools now persists through domain reloads (Play Mode entry, script recompilation). Previously the override was silently lost on every reload.
  • MCP bridge retry loop when host project has a broken global Newtonsoft JsonConverter (e.g. old com.unity.services.cloudsave).
  • Permission prompt Allow/Deny buttons no longer get pushed off-screen when the tool call title is multi-line (e.g. Bash heredoc commands). Title/detail now stay on a single line; a new View button opens an expanded panel with the full content.
  • Reduced generator skill over-triggering by adding explicit-intent and code-first guards to the GenerateAsset tool description.
  • Skip button on the AskUser dialog stays visible after skipping the last question — now hidden once there's nothing left to skip.

[2.8.0-pre.1] - 2026-05-14

Added

  • Added description in model selection window when no models are visible.
  • Skills are scanned from UPM package AIAssistantSkills folder.

Changed

  • Add Revise plan flow to ExitPlanMode approval card.

Fixed

  • Hide the technical AttachedImageReference context entry from the conversation history UI so it no longer appears as a stray widget after domain reload.
  • Implementation plan UI, expanded plan view, and elapsed-time counter no longer disappear or reset when a domain reload happens while the chat is awaiting plan approval.
  • NullReferenceException in Chat Window.
  • Pro license fallback now grants three MCP and AI Gateway connections.
  • Replace additional placeholder .meta file GUIDs that could collide with user projects.
  • Users without an active Unity AI subscription now see the trial banner instead of the "Get More Credits" banner across the AI dropdown, Generators, and Assistant.
  • SKILL.md files authored in CJK languages (Chinese, Japanese, Korean) now load correctly.
  • Fixed Open Package Manager link not working.
  • Fixed Update button not giving feedback when updating Assistant.

[2.7.0-pre.3] - 2026-05-06

Added

  • Added the Voice tooltip to Generation Data.
  • Surface Unity entitlement-derived connection limits (AllowedGatewayConnections, AllowedMcpConnections) on SettingsState so UI can gate features by Personal / Pro / Enterprise tier.

Fixed

  • Fixed Assistant generating voices.
  • Replace placeholder .meta file GUIDs that could collide with user projects.
  • Local Unity license entitlements now contribute to MCP and AI Gateway connection limits.
  • UNITY_PROJECT_PATH / --project-path targeting for the Unity MCP server now matches the project root as documented.

Removed

  • Removed the count on 3d generators and default to 1.

[2.7.0-pre.2] - 2026-05-05

Fixed

  • Fixed Video to Motion.
  • Fixed Search overflow in Assistant window.
  • Fixed Convert reference model from FBX to GLB when rigging model only accepts glTF input.
  • Fixed light mode references button.

Removed

  • Removed the subscription link from the trial banner.

[2.7.0-pre.1] - 2026-04-28

Added

  • Expanded view for chat elements.
  • Figma Access Token configuration in Project Settings with API verification.
  • Figma-to-UI agent tools for listing screens and importing design assets from Figma projects.
  • Generic CredentialSet relay channel for storing and deleting credentials in the OS keychain.
  • Plan mode can now read console logs and query package info when producing an implementation plan.
  • Public AssistantApi surface (Run, PromptThenRun, RunHeadless, AttachedContext, VirtualAttachment, IAgent).
  • RunReadOnlyCommand tool to plan mode.

Changed

  • "Beta" chip label on the New Chat screen.
  • Add more fields to gateway and MCP analytics.
  • Attachment view redesign.
  • Feedback redesign.
  • Redesign session status banners to show context-specific messaging and actions based on user license type and points status.
  • Todo progress widget header renamed from "Executing Plan" to "Task List".

Fixed

  • Async fire-and-forget tasks could block the calling thread before the first await in WithExceptionLogging.
  • Attachment drag-and-drop animation.
  • Autorun state now tracked in analytics for plan mode.
  • Autorun toggle now enabled in plan mode.
  • Changed all user-facing mentions of "points" to "credits" in Assistant window and AI button.
  • ChatElementBase is no longer redundantly re-added to the root VisualElement on every SetupChatElement call.
  • CheckpointEnabled (and other Assistant preferences) no longer revert to defaults after restoring a checkpoint in projects that gitignore ProjectSettings/Packages/.
  • Conversation no longer hangs on "Preparing..." after domain reloads triggered by parallel CodeEdit tool calls.
  • Fix What's New banner clipping behind centered footer in empty state.
  • Fixed soft-lock of graph creation on large projects.
  • GetFileContent now enforces a 2 MB size limit and rejects binary files, preventing editor hangs when large or binary assets are read.
  • Increase "Summarizing..." timeout from 3s to 6s to reduce false positives during streaming.
  • NullReferenceException in Chat Window.
  • NullReferenceException in RunCommandTool when agent script uses an unauthorized namespace (System.Reflection, System.Net, etc.); agent now receives a specific error message naming the blocked namespace.
  • Reasoning blocks no longer visually interrupt continuous text in chat responses.
  • Removed unnecessary empty space below the text in the Details block of the Unity_RunCommand tool in the Unity MCP Project Settings section.
  • RunCommand tool on Unity 6.5+.
  • Show "Awaiting input..." in the progress indicator when a tool is waiting for user response.
  • The Refresh Project Overview button is now hidden for non-Unity (ACP) providers, where it had no effect.
  • Todo panel collapsed state is now preserved across domain reloads and conversation switches.
  • Undo/Redo keyboard shortcuts now work in prompt text fields.
  • When adding context via the + button, the input field shouldn't add the file name.
  • BaseInteraction.CancelInteraction() now fires OnCompleted so interaction queue entries are properly cleaned up on cancel.
  • BaseInteraction<T> and DialogToolUiContainer no longer throw InvalidOperationException on double-cancel races, preventing the UI ghost-panel state.

Security

  • Prevent API keys and tokens from leaking into relay logs and trace files.

[2.6.0-pre.1] - 2026-04-14

Changed

  • Moved Profiler Assistant to Skills implementation.
  • Update Plan mode tool descriptions.

Fixed

  • "Check Status" button in Project Settings > Unity MCP Server now logs the integration status to the Console.
  • Added tooltip to conversation context counter.
  • Fixed a few icons that were not dark enough in light mode.
  • GetConsoleLogs tool timestamps.
  • MCP Server settings subtitle text overflow.
  • NullReferenceException in Chat Window.
  • Preferences search bar now finds matches on the Assistant tab.
  • Some image types cannot be used as assistant attachments.
  • Tool renderer header icons getting squashed when tool call title is too long.

[2.5.0-pre.2] - 2026-04-09

Fixed

  • Fixed compilation error when com.unity.ai.inference package is installed on Unity 6000.5.

[2.5.0-pre.1] - 2026-04-09

Added

  • Grep tool.
  • Plan mode.
  • Project Settings AI / Skills page to see and validate AI Assistant skills.
  • Public API "AgentTool" to declare tools for the AI Assistant.
  • Skill loading logic for AI Assistant's skills loaded from the filesystem.
  • Support required_editor_version field in SKILL.md frontmatter for editor version gating.
  • Support for Unity 6000.5 Beta.
  • ask_user tool UI with multi-question navigation, single/multi-select layout, and yes/no support.

Fixed

  • AskUser tool returns a descriptive error to the model when the questions JSON is malformed.
  • Clicking a regular option after selecting Other left two radio buttons appearing selected simultaneously.
  • Feedback text field left edge misaligned.
  • Fixed "Ask" route get reset to "Agent" at every domain reload.
  • Fixed ArgumentNullException for Upscale and PBR tabs.
  • Game data collection hook not attaching when Assistant window is opened after editor startup.
  • Ignore codex MCP probe connections from settings UI to avoid jitter.
  • Image previews from screenshot and GetImageAssetContent tools disappearing when reasoning section collapses.
  • MCP Integration in project settings.
  • MCP duplicate connections for identical clients.
  • MCP tool calls such as RunCommand now properly update the asset database and wait for compilation prior to running.
  • NullReferenceException in Chat Window.
  • PendingInlineInteractions cleared on conversation switch to prevent memory leaks.
  • Permission requests now always surface immediately when the todo panel is showing.
  • Relay not being copied to ~/.unity/relay reliably for MCP use.
  • Shared relay install logic between RelayService and ServerInstaller to fix Mac relay installation.
  • Single Completed subscription per content object prevents redundant callbacks on recycling.
  • Todo updates scoped to originating conversation ID, preventing cross-conversation bleed.
  • ask_user Other field text misaligned by a few px compared to regular option labels.
  • ripgrep code signing.

Removed

  • Unity.FindFiles tool.

[2.4.0-pre.1] - 2026-03-30

Added

  • Add feedback source tracking for generation feedback.
  • Mesh generation pivot export settings.
  • USS import error surfacing in CodeEditTool for .uss files.

Changed

  • Improved CodeEdit string matching logic for line ending and indentation mismatches between LLM output and file content.

Fixed

  • Compilation when "USE_ROSLYN" is added to Scripting Define Symbols.
  • Fixed clipboard attachment inverted.
  • Fixed context button staying highlighted.
  • Fixed duplicate Assistant window appearing when maximizing/restoring editor windows.
  • NullReferenceException in Chat Window.

[2.3.0-pre.2] - 2026-03-23

Fixed

  • Fixed What's new banner not loading correctly.

[2.3.0-pre.1] - 2026-03-23

Added

  • Added a standalone 2D scene capture tool and enhanced the Multi-Angle Scene View tool with object focusing capabilities for better visual validation.
  • Added feedback text in generators.
  • Client-side Unity.Web.Fetch tool for hybrid web search architecture with HTML-to-markdown conversion, Discourse JSON API support, and browser User-Agent for bot-detection bypass.
  • Game-Data-collection package: README with onboarding guide for the game-data-collection package.
  • The feature of GetDependency tool to query the dependency graph.
  • Toggle in project settings for batch mode auto-approve for Unity MCP.

Changed

  • Game-Data-collection package: Snapshot commit messages now include the first 15 words of conversation content for easier identification.
  • MCP connection speed to be much faster.

Fixed

  • Assistant tries and fails repeatedly to generate a sprite with a background color.
  • Fixed banner not dismissing after package update from package manager.
  • Invalid model selected in generator windows.
  • NullReferenceException in Chat Window.
  • Assistant issues related to editor not in focus.
  • Brittle connection behaviour due to multiple tool updates during MCP server initialization phase.
  • Connection issues related to editor not in focus.
  • MCP connection issues in batch mode.
  • MCP reconnection after domain reload.
  • MCP tool calls failing during domain reload validation window.

[2.2.0-pre.1] - 2026-03-16

Added

  • Added feedback system for Generators.
  • LLM Model selection for AI Assistant.
  • Added dependency graph creation and refreshing.

Changed

  • Changed feedback UI for Assistant.
  • Moved Profiler Assistant to Skills implementation.

Fixed

  • Clear all attachments (objects, console logs, virtual attachments) after sending a prompt, not just screenshots.
  • Cursor access fixed.
  • NullReferenceException in Chat Window.
  • Project image asset contents unable to be read by AI Assistant.

[2.1.0-pre.1] - 2026-03-09

Added

  • Tool Unity.GetSceneInfo.

Changed

  • GameObjectSerializer, ObjectsHelpers Response in Unity.AI.MCP.Editor.Helpers to public.
  • Changed how annotations are sent to backend by sending a mask of the annotations.
  • Removed SceneInfo, ProjectDependency, ProjectSetting, ProjectVersion from GetProjectData tool output.

Fixed

  • NullReferenceException in Chat Window.

[2.0.0-pre.1] - 2026-03-03

Added

  • Made MCP tools and APIs public, including UI for MCP tool categories and documentation.
  • Added Skills Developer Frontend.
  • Added opacity slider annotation.
  • Added logging for code edit issues.

Changed

  • Merged com.unity.ai.toolkit and com.unity.ai.generators packages into com.unity.ai.assistant.
  • Reduced monopackage public API.
  • Updated Assistant interface, integrations, and skill creation documentation.
  • Added ability to dismiss low points banner.
  • Added tags to identify SkillDefinition for removal in Skills Frontend.
  • Removed icons from the provider selector.
  • Improved log debugger.
  • Used full install path to reference Cursor CLI for running login.

Fixed

  • Fixed Annotation Tool taking screenshot on same monitor as Unity on macOS.
  • Fixed 99% stuck generations.
  • Fixed asset generator thought element reuse.
  • Fixed getting stuck after an answer.
  • Fixed domain reload endless blocker.
  • Fixed ACP client stuttering.
  • Fixed MCP Client initialization bug.
  • Fixed a regression with relay.
  • Fixed missing generation result checks.
  • Fixed cancellation issues where prompt cancellation also canceled title generation.
  • Labeled canceled messages as complete.
  • Fixed skill definition metadata and YAML parsing corrections.
  • Fixed thought sequence hiding if tool is still in progress.
  • Ensured thought chunks are rendered as thought blocks for ACP conversations.
  • Fixed various asset generator bugs.
  • Fixed issue with stale queue indices when switching conversations.

[1.7.0-pre.1] - 2026-02-23

Added

  • Annotation Tool

Fixed

  • Fixed interrupted conversations in AI Gateway
  • Fixed RunCommand failing
  • Fixed permission issues from UI refactor
  • Improved conversation recovery and resilience

[1.6.0-pre.3] - 2026-02-16

Added

  • Added Checkpoints
  • Added MCP Client

Fixed

  • Fixed Mac Relay Code signing

[1.6.0-pre.2] - 2026-02-10

Added

  • Re-enabled Unity 6.0 support

Changed

  • Removed AI Gateway from settings pages

Fixed

  • Fixed reasoning collapse issue
  • Fixed race condition in DispatchWithOverride causing truncated chat responses

[1.6.0-pre.1] - 2026-02-09

Added

  • Added links to the Profiler Window for the profiling agent integration

[1.5.0-pre.2] - 2026-01-15

Added

  • What's New section about points.

Changed

  • Changed package description.

Fixed

  • Fixed right-click issue in chat history.
  • Fixed new missing permissions cost.

[1.5.0-pre.1] - 2026-01-05

  • Added image and screenshot attachments support with multiple format compatibility
  • UI Builder Agent with a preview system
  • Permissions system for file create/modify/delete actions with session overrides
  • New Ask mode for question-focused interactions without executing actions
  • Code Edit tools with diff and syntax highlighting
  • Package Manager tools for add/remove/embed packages
  • Project Overview tool for quick project structure summary
  • New Orchestrator with improved multi-step workflows and automatic tool review
  • Added reasoning blocks with auto-hide options

[1.0.0-pre.12] - 2025-08-12

  • Update AI-Toolkit to 1.0.0-pre.18

[1.0.0-pre.11] - 2025-07-31

  • Added tooltips to actions buttons
  • Cannot press enter anymore to cancel chat progress
  • Fuzzy matching improvements
  • Added links to new docs
  • Conversation is retained on domain reload
  • Remove preview chips from routes

[1.0.0-pre.10] - 2025-07-16

  • Minor bug fixes
  • Fixed issue where URLs were not being updated automatically for upgrading users
  • Fixed issue where versions API endpoint reporting unsupported server versions was not shutting down the UI

[1.0.0-pre.9] - 2025-07-15

  • Return enter cancels prompt and resends it
  • Fix code edit temp file
  • Check for unauthorized code before loading the assembly
  • Support function calling during streaming

[1.0.0-pre.8] - 2025-06-27

  • Moved Plugin Attributes back to AI Assistant

[1.0.0-pre.7] - 2025-06-25

  • Minor bug fixes
  • Improved error handling for function calling
  • Finalized onboarding content
  • Disabled run when code won't compile
  • Fixed performance issues for long conversations
  • Improved history panel performance

[1.0.0-pre.6] - 2025-06-05

  • Bump AI Toolkit to 1.0.0-pre.12
  • Fixed issue blocking .NET Standard Editor compatibility
  • Minor UI fixes
  • Minor bug fixes
  • Improved attachment selection UX
  • Fixed issue adding additional attached context to prompts
  • Added support for array types as run parameter field.

[1.0.0-pre.5] - 2025-05-14

  • Improved Agent deletion logic
  • Improved search window performance
  • Improved automatic conversation naming
  • Fixed issue with conversation history after editing agent actions
  • Other small bug fixes

[1.0.0-pre.4] - 2025-05-13

  • Update AI-Toolkit to 1.0.0.-pre.7
  • Added console tab attachments
  • Updated to beta backend urls
  • Fixed source attribution placement
  • General usability fixes
  • Fixed access token refresh issue
  • Fixed bugs related to API alignment
  • Assistant can now be used when the editor is paused

[1.0.0-pre.3] - 2025-04-22

Changed

  • update AI-Toolkit to 1.0.0.-pre.4

[1.0.0-pre.2] - 2025-04-16

Changed

  • Version Bump for re-release in production

[1.0.0-pre.1] - 2025-04-11

Changed

  • Initial release of the AI Assistant Package
  • Adds a menu item at Window > AI > Assistant to access tool
  • Updated to interact with the new AI Assistant server using the AI Assistant protocol