Release 1.1.2 — the default path works end to end

Fix release for 1.1.1: the minimal path end to end, engine commands that
run on Godot, Unity and Unreal, hook warnings you can see, and verdicts
that say when they could not check. Details in CHANGELOG.md; upgrade
steps in UPGRADING.md (v1.1.1 → v1.1.2).

Fixes #67
Fixes #131

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WuJn2FdynEybfL5KC697nJ

CCGS Skill Testing Framework/agents/engine/godot/godot-gdscript-specialist.md

@@ -3,7 +3,6 @@
 ## Agent Summary
 Domain: GDScript static typing, design patterns in GDScript, signal architecture, coroutine/await patterns, and GDScript performance.
 Does NOT own: shader code (godot-shader-specialist), GDExtension bindings (godot-gdextension-specialist).
-Model tier: Sonnet (default).
 No gate IDs assigned.
 
 ---
@@ -11,8 +10,8 @@ No gate IDs assigned.
 ## Static Assertions (Structural)
 
 - [ ] `description:` field is present and domain-specific (references GDScript / static typing / signals / coroutines)
-- [ ] `allowed-tools:` list includes Read, Write, Edit, Bash, Glob, Grep
-- [ ] Model tier is Sonnet (default for specialists)
+- [ ] `tools:` list includes Read, Write, Edit, Bash, Glob, Grep
+- [ ] Model tier is `sonnet` — frontmatter `model:` reads exactly `sonnet` (tiers: `.claude/docs/model-tiers.md`)
 - [ ] Agent definition does not claim authority over shader code or GDExtension
 
 ---
@@ -34,33 +33,34 @@ No gate IDs assigned.
 - Does NOT produce shader code in GDScript or in Godot's shading language
 - Explicitly states that shader authoring belongs to `godot-shader-specialist`
 - Redirects the request to `godot-shader-specialist`
-- May note that the GDScript side (passing uniforms to a shader, setting shader parameters) is within its domain
+- Any help it offers stays on the script side its redirect line says it owns (`set_shader_parameter()`, material assignment) — it writes no shader code
 
 ### Case 3: Async loading with coroutines
 **Input:** "Load a scene asynchronously and wait for it to finish before spawning it."
 **Expected behavior:**
 - Produces an `await` + `ResourceLoader.load_threaded_request` pattern for Godot 4
 - Uses static typing throughout (`var scene: PackedScene`)
-- Handles the completion check with `ResourceLoader.load_threaded_get_status()`
+- Handles the completion check with `ResourceLoader.load_threaded_get_status()`, awaiting between polls rather than blocking the frame
+- Checks `is_instance_valid(self)` after the await before spawning — the node may have been freed while the scene loaded
 - Notes error handling for failed loads
 - Does NOT use deprecated Godot 3 `yield()` syntax
 
 ### Case 4: Performance issue — typed array recommendation
 **Input:** "The entity update loop is slow; it iterates an untyped Array of 1,000 nodes every frame."
 **Expected behavior:**
-- Identifies that an untyped `Array` foregoes compiler optimization in GDScript
-- Recommends converting to a typed array (`Array[Node]` or the specific type) to enable JIT hints
-- Notes that if this is still insufficient, escalates the hot path to C# migration recommendation
+- Identifies that an untyped `Array` foregoes GDScript compiler optimizations
+- Recommends converting to a typed array (`Array[Node]` or the specific type) so the compiler can use typed code paths
 - Produces the typed array refactor as the immediate fix
-- Does NOT recommend migrating the entire codebase to C# without profiling evidence
+- Notes that if profiling still shows the loop as a bottleneck, the next step is moving the hot path to GDExtension (C++/Rust) with godot-gdextension-specialist, per its GDScript/GDExtension boundary
+- Does NOT recommend moving the loop, or the codebase, out of GDScript without profiler evidence
 
 ### Case 5: Context pass — Godot 4.6 with post-cutoff features
 **Input:** Engine version context provided: Godot 4.6. Request: "Create an abstract base class for all enemy types using @abstract."
 **Expected behavior:**
 - Identifies `@abstract` as a Godot 4.5+ feature (post-cutoff)
-- Notes this in the output: feature introduced in 4.5, verified against VERSION.md migration notes
-- Produces the GDScript class using `@abstract` with correct syntax as documented in migration notes
-- Marks the output as requiring verification against the official 4.5 release notes due to post-cutoff status
+- Notes this in the output: feature introduced in 4.5, confirmed against `docs/engine-reference/godot/breaking-changes.md` (4.4 → 4.5 table)
+- Produces the GDScript class using `@abstract` on the class and its abstract methods, following the reference docs (`current-best-practices.md`) rather than training data
+- Flags that `VERSION.md` records `Installed at pin time` as NOT DETERMINED — the installed editor must be 4.5 or later for `@abstract` to parse
 - Uses static typing for all method signatures in the abstract class
 
 ---
@@ -73,6 +73,7 @@ No gate IDs assigned.
 - [ ] Returns structured GDScript output with full static typing
 - [ ] Uses Godot 4 API only — no deprecated Godot 3 patterns (yield, connect with strings, etc.)
 - [ ] Flags post-cutoff features (4.4, 4.5, 4.6) and marks them as requiring doc verification
+- [ ] Asks "May I write this to [filepath]?" naming the file before writing
 
 ---