v1.0.0 "Swan Song"

What's New

Unity Agent Persona

Every conversation now includes a built-in system prompt that makes Claude a strict, professional Unity developer. It
documents all 75 MCP tools with efficiency patterns, enforces design-first workflows, and flags anti-patterns before
acting.

Architecture Skills

10 Claude Code skills covering the full Unity development lifecycle, loaded on demand via the Agent SDK's plugin
system:

• unity-architect — top-level decision framework (prefabs, scenes, components, data, performance) with 5 deep-dive
  references
• unity-workflow — design-first process: Analyze → Design → Implement → Verify
• unity-reviewer — post-implementation code review (critical bugs → performance → style)
• unity-performance — CPU/GPU/RAM cost models, pooling, batching, platform budgets
• component-design — MonoBehaviour composition and communication patterns
• data-modeling — ScriptableObject patterns, runtime data, serialization
• prefab-architecture — separate prefabs vs. variants vs. SO config
• prefab-workflow — efficient MCP tool sequences for prefab authoring
• scene-architecture — scene organization, additive loading, transitions
• scene-authoring — batch MCP tool sequences for scene building
• animation-workflow — AnimatorController setup via MCP tools

Plugin System

The sidecar now registers as a Claude Code plugin, enabling automatic skill discovery via the Agent SDK.

Tests

16 new test cases covering plugin passthrough, skill support, plan mode, undo/rewind, tool activity events, task
tracking, and MCP connection management.

Why This Is the Final Release

Anthropic's updated Terms of Service prohibit third-party tools from authenticating via Claude subscription OAuth,
which was UniClaude's core pricing model. The Agent SDK itself remains permitted with API key auth, but metered API
pricing removes UniClaude's value proposition over alternatives. See OutroMigration.md for a plan
to extract UniClaude's 75+ MCP tools into a standalone, client-agnostic package.

v0.3.0 "Sharpening Tools"

This release overhauls how UniClaude connects to the MCP server — tools are now discovered eagerly via SDK tool search and dispatched directly, cutting a full round trip per tool call. It also adds 7 new tools for asset import settings, AnimatorController authoring, and scene primitives. A domain reload watchdog ensures the SSE stream auto-reconnects after Unity recompiles.

v0.2.0 "Ninja"

What's Changed

• Ninja PR by @mikeKuharuk in #4

New Contributors

• @mikeKuharuk made their first contribution in #4

Full Changelog: https://github.com/TheArcForge/UniClaude/commits/v0.2.0