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Animation Review · randallliuxin | DecimalAI

randallliuxin/animation-review

NewSkillScoreMaintained

Reviews Godot Animation implementation for known pitfalls. Triggers AFTER implementation, when code involves AnimationPlayer, AnimationTree, AnimatedSprite2D, SpriteFrames, AnimationNodeStateMachine, BlendSpace, OneShot, callback_mode_process, or animation playback control (play/travel/start). Do NOT use this skill for planning or teaching — only for post-implementation review.

Code Reviewby randallliuxin

Links this skill to your agents and keeps it current with the author’s updates.

Automatic

QA & Test Engineering pack

1 · One-time — install the CLI (docs ↗)

pip install decimalai

2 · Get the skill — writes .claude/skills/randallliuxin-animation-review/SKILL.md

decimalai skills pull randallliuxin-animation-review --out .claude/skills/

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/randallliuxin-animation-review/SKILL.md https://app.decimal.ai/s/randallliuxin-animation-review/SKILL.md

Raw file: /s/randallliuxin-animation-review/SKILL.md ↗ · machine-readable summary at /s/randallliuxin-animation-review.json ↗

In productionGlobal

how this skill behaves on real traffic · last 30 days

No production data for this skill yet — usage numbers appear here once agents start running it.

Anonymized aggregate across every org using this skill — proof from real production use, not a demo.

Does this skill help? · Benchmark: with vs. withoutsign in to run this on your agents

22 test cases from the publisher’s eval.yaml · each run twice on gemini-3.6-flash — with the skill injected, then without · last run 20h ago

Yes — +5% lift-28% tokens0% turns86% of whole cases pass with skill (19/22)

Test case	Without → With	Effect	Δ tokens	Δ turns
case-02	✗→✓	▲ Improved	-40%	0%
case-14	✗→✓	▲ Improved	-17%	0%
case-20	✓→✗	▼ Worse	-9%	0%
case-17	✓→✓	＝ Same ✓	-1%	0%
case-03	✓→✓	＝ Same ✓	-21%	0%

Showing 5 of 22 cases

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

randallliuxin / godotmaker

skills/reviewer/animation/SKILL.md

View on GitHub ↗

License NOASSERTIONImported 8/3/2026Version v1

Skill contents

SKILL.md

Animation Review

Post-implementation reviewer for Godot animation code. Checks against known gotchas that LLMs consistently get wrong.

When to trigger

After animation-related code is written or modified. Look for:

Animation nodes (AnimationPlayer, AnimationTree, AnimatedSprite2D)
AnimationTree state machine control (travel(), start(), active)
SpriteFrames or Animation resource manipulation at runtime
callback_mode_process settings
Pool/spawn lifecycle involving animated entities
Briefs or asset snapshots that require multi-frame grid_sheet runtime

assets, dynamic-mode evidence, frame sequences, animated actors, or animated FX. Trigger even if the implementation contains no animation API; omitted expected animation is a finding.

Review process

Read gotchas.md
Scan the implemented code against each gotcha
For each hit:

Cite the gotcha ID (e.g. G1)
Show the offending code
Provide the fix

If no hits, report clean
Optionally run checklist.md static checks for automated verification

When you need specific API details, delegate to the godot-api skill.

Want to see if randallliuxin/animation-review would activate on your phrasing? Try it before you install — no LLM call, no signup.

Latest benchmark · publisher runVerified

8/20/2026, 02:51 UTC · 22 cases

Lift

+5%

86% vs 82%

Agent turns

1.0 vs 1.0

Tokens

-28%

1,341.27 vs 1,873.09

fail → pass · 2pass → pass · 17fail → fail · 2pass → fail · 1

Per-case results (22)

Case	Status	Duration (ms)			Turns			Tokens			Tool calls
Case	Status	Without	With	Δ	Without	With	Δ	Without	With	Δ	Without	With	Δ
case-17 Review this code snippet updating AnimationTree parameters: func update_blend(x: float): $AnimationTree["parameters/Blend1D/blend_position"] = x	pass→pass	10,173	8,568	-16%	1	1	0%	1,638	1,621	-1%	0	0	—
case-01 Review this Godot script where AnimationPlayer advances manually on process, but you spot a known pattern issue. Provide a code review detailing findings: func _process(delta): $AnimationPlayer.advance(delta)	fail→fail	10,403	4,846	-53%	1	1	0%	1,721	965	-44%	0	0	—
case-02 Perform a review on the following GDScript snippet for an animated character death. Point out any animation errors: func die(): $AnimatedSprite2D.play("death") queue_free()	fail→pass	9,419	4,669	-50%	1	1	0%	1,535	927	-40%	0	0	—
case-03 Review this GDScript block where an AnimationTree playback is triggered via start() instead of travel(). Show what needs fixing: func change_state(): $AnimationTree.get("parameters/playback").start("Run")	pass→pass	7,848	5,197	-34%	1	1	0%	1,307	1,033	-21%	0	0	—
case-04 Review this Godot GDScript file that correctly updates AnimationTree parameters and handles state transitions with travel(). No gotchas exist in this code: func update_move(dir: Vector2): $AnimationTree.set("parameters/BlendSpace2D/blend_position", dir) var playback = $AnimationTree.get("parameters/playback") playback.travel("Walk")	fail→fail	13,312	9,301	-30%	1	1	0%	2,028	1,775	-12%	0	0	—
case-05 A design specification mandates an animated actor with attack frame sequences and animated FX upon swinging a sword. Here is the implementation: func perform_attack(): hitbox.monitoring = true await get_tree().create_timer(0.5).timeout hitbox.monitoring = false Review this code against the specification.	pass→pass	12,247	6,456	-47%	1	1	0%	1,993	1,437	-28%	0	0	—
case-06 Review a Godot GDScript script that manipulates SpriteFrames at runtime. When checking detailed method signatures for SpriteFrames, what dynamic reference or API delegation step should be taken?	pass→pass	13,398	3,145	-77%	1	1	0%	2,295	722	-69%	0	0	—
case-07 Check this Godot setup where physics interaction jitter occurs because AnimationPlayer process mode is left at default while driving KinematicBody3D. Provide the review findings: @onready var anim = $AnimationPlayer func _ready(): anim.play("Walk")	pass→pass	8,028	4,897	-39%	1	1	0%	1,511	1,123	-26%	0	0	—
case-08 Review this enemy pooling script where spawned animated entities retain stale state upon reuse: func spawn_enemy(): var e = pool.pop() e.show() e.position = spawn_point	pass→pass	11,598	7,605	-34%	1	1	0%	2,123	1,684	-21%	0	0	—
case-09 The asset brief requires multi-frame grid_sheet runtime assets for particle effects on dynamic impact. The implemented script simply changes material color: func trigger_impact(pos: Vector2): $Sprite2D.modulate = Color.RED Review this implementation against the brief.	pass→pass	10,806	6,369	-41%	1	1	0%	1,794	1,504	-16%	0	0	—
case-10 Review this script attempting to control AnimationTree states without enabling active: func setup_tree(): var playback = $AnimationTree.get("parameters/playback") playback.travel("Idle")	pass→pass	12,787	5,136	-60%	1	1	0%	1,987	1,108	-44%	0	0	—
case-11 Review this sprite-based animation code that uses polling in _process to trigger frame audio instead of signals: func _process(_delta): if $AnimatedSprite2D.frame == 3: play_footstep()	pass→pass	12,122	4,524	-63%	1	1	0%	1,930	1,021	-47%	0	0	—
case-12 Review this GDScript code that alters SpriteFrames animation speed at runtime on a shared resource directly without duplicating: func set_fast_speed(): $AnimatedSprite2D.sprite_frames.set_animation_speed("default", 20.0)	pass→pass	10,987	5,517	-50%	1	1	0%	1,718	1,163	-32%	0	0	—
case-13 Review this GDScript animation code. After detailing manual gotcha findings, what automated verification option can be suggested?	pass→pass	15,248	8,394	-45%	1	1	0%	2,306	1,404	-39%	0	0	—
case-14 Review this code snippet with an issue: $AnimationPlayer.play("jump"); queue_free(). Ensure the output format follows the standardized review structure.	fail→pass	6,207	4,063	-35%	1	1	0%	1,045	872	-17%	0	0	—
case-15 The design brief requires dynamic-mode evidence and frame sequences for a boss transformation sequence. The implemented script triggers a single static frame swap. Review this implementation.	pass→pass	14,767	9,850	-33%	1	1	0%	2,219	1,749	-21%	0	0	—
case-16 An asset snapshot mandates an animated actor for the player character with walk, idle, and jump clips. The code only manipulates Vector2 position in _physics_process. Review the code.	pass→pass	9,869	9,931	+1%	1	1	0%	1,740	1,889	+9%	0	0	—
case-18 Write a GDScript helper function to dynamically create an AudioEffectReverb and attach it to the 'SFX' AudioServer bus in Godot 4.	pass→pass	9,665	5,192	-46%	1	1	0%	1,611	1,150	-29%	0	0	—
case-19 Explain best practices for quad-based edge loops around human shoulder joints when modeling a character mesh in Blender for game engine export.	pass→pass	21,543	13,308	-38%	1	1	0%	3,014	1,964	-35%	0	0	—
case-20 Provide a GDScript example in Godot 4 using PhysicsDirectSpaceState2D.intersect_ray to perform a 2D line-of-sight check between two Vector2 positions.	pass→fail	10,697	8,384	-22%	1	1	0%	1,891	1,712	-9%	0	0	—
case-21 A feature ticket requests animated FX whenever a projectile detonates. The script simply calls queue_free() on collision. Review this script.	pass→pass	12,739	7,678	-40%	1	1	0%	1,982	1,420	-28%	0	0	—
case-22 Review this script where texture frames are added to SpriteFrames in a loop inside _process: func _process(_delta): if needs_update: $AnimatedSprite2D.sprite_frames.add_frame("default", new_texture)	pass→pass	11,224	7,039	-37%	1	1	0%	1,820	1,265	-30%	0	0	—

These cases were also screened by the skill’s intent / safety pass.See the Trust review ↗Reproduce this benchmark in Colab ↗

How this skill was measured

DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 22 cases were attempted. The headline lift of +5 percentage points is the difference between those two pass rates over the 22 comparable cases. 1 case got worse with the skill loaded, and it is included in that figure.

Model measured: gemini-3.6-flash
Graded by: gemini-3.6-flash
Grading method: judged
Verification: verified
Pass rate without the skill: 81.8%
Pass rate with the skill: 86.4%
Cases attempted: 22
Cases counted toward lift: 22
Cases that regressed: 1
Skill version measured: v1
Run completed: 8/20/2026, 02:51 UTC

Measured example — same prompt, with vs. without the skill · from the benchmark run · case case-02

Prompt

Perform a review on the following GDScript snippet for an animated character death. Point out any animation errors:

func die():
	$AnimatedSprite2D.play("death")
	queue_free()

Without the skill loaded, the model failed this case. With it loaded, the same prompt on the same model passed. This is one improved case from the latest verified run; every case, including any that regressed, is in the table above.

Show both answers

SkillScore blends 4 signalsno signals yet

BenchmarkRun a verified benchmark with positive lift

Live evalNeeds ≥20 evaluated traces in 30 days

AI ratingNeeds ≥10 rated traces

AdoptionNeeds ≥10 serves across ≥2 orgs in 30 days

No signals yet — run a benchmark or collect evaluated traces to earn a score.

Verified on gemini-3.6-flash · re-tested today

Other measured skills in the registry, with their headline benchmark lift.