SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when generating a single static 3D prop — sword, barrel, chest, lantern, throne, statue, crate, key, potion, banner. One isolated object, no rigging, wired into the scene as a MeshInstance3D. Trigger on "make a sword", "generate a chest", "I need a barrel", "add a lantern model", "give me a treasure prop", "create…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when generating a hard-surface vehicle — car, motorcycle, spaceship, hover bike, boat, mech, tank, helicopter. Static mesh, optional secondary detail-texture pass, wired as Vehicle3D (player-driven) or MeshInstance3D (background). Trigger on "make a car", "spaceship model", "generate a mech", "I need a vehicle"…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when the user wants to design an enemy, NPC, boss, companion, civilian, or wave-spawned mob's behavior. Walks perception, personality knobs, intent layer, action state machine, telegraphs, defeat handling, and group emergence — outputs a state-machine GDScript stub plus the recommended node tree. Trigger on…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when the user has clips on a character and needs them to play in response to gameplay — idle/walk/run blend, attacks that interrupt locomotion, hit reactions that override everything. Designs and wires Summer Engine AnimationTree state machines and blend trees. Trigger on "AnimationTree", "state machine", "blend…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when the user has a voice-over (or wants one) and needs the character's mouth to actually move with the words — phoneme extraction from audio, mapping to viseme blendshapes, plus emotional facial expressions (smile, frown, surprise). Trigger on "lipsync", "lip sync", "talking head", "phonemes", "viseme", "facial…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when the user needs an animation clip on a rigged character — idle/walk/run/attack from the curated Meshy library. Picks the right curated motion, attaches the resulting clip to an AnimationPlayer. Trigger on "animation", "animate", "idle", "walk", "run", "attack animation", "motion", "mocap", "dance", "death…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when the user needs runtime-driven bone modification on top of clips — head look-at, foot IK on uneven ground, hand-grabs-prop, additive lean, hit-direction recoil. Code-and-modifier patterns, not generation. Trigger on "look at", "IK", "foot placement", "foot IK", "lean", "additive layer", "feet floating", "hand…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when the user wants to apply existing animation clips from one rigged character to a different rigged character — same library, multiple models, no regeneration. Trigger on "retarget", "reuse animation", "apply to other character", "same animations on different model", "share animation library".
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when planning asset creation, picking an asset pipeline, or routing an "I need a [thing]" request to the right specialist skill. Disambiguates between 2D / 3D / audio / video / VFX / animation pipelines and dispatches via the Skill tool. Trigger on "assets", "asset pipeline", "make a model", "I need a sound"…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when wiring music stems to game state — combat / explore / boss / tension crossfades on a shared bus. Pairs generated stems with a state machine and AudioBus structure. Trigger on "adaptive music", "dynamic music", "music changes when combat starts", "layered music", "vertical music", "wire stems".
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when generating a long looping location ambience — forest at dawn, dungeon air, city street, spaceship hum, cave drip. Non-melodic, low-energy, never draws attention. Wires as a looping AudioStreamPlayer on the Ambient bus with a marked seamless loop. Trigger on "ambient bed", "room tone", "background ambience"…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when defining the sonic identity — music style, instruments, SFX vocabulary, dynamic music plan. Outputs an audio bible at .summer/audio-bible.md. Trigger on "audio direction", "audio bible", "music style", "sound design", "what should it sound like", "dynamic music".
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when generating a looped or cinematic music track. Loops are authored at >=30s with a marked loop point; cinematic tracks at >=60s linear. Trigger on "generate music", "make a calm track", "boss music", "title screen music", "main theme", "exploration loop", "combat track".
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when generating short SFX one-shots — footsteps, weapon swings, UI clicks, hit impacts, environmental cues. Wires the resulting clip as an AudioStreamPlayer / 2D / 3D and auto-frees on finished. Trigger on "make a sword swing sound", "generate a UI click", "I need a footstep", "add a hit sound", "spawn an SFX".
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when generating TTS voice lines — NPC barks, narrator, dialogue. Covers where voice ids come from, a character-to-voice decision tree, stability/style/similarity guidance, and the multi-line dialogue case via texttodialogue. Trigger on "make a voice line", "narrator", "NPC says", "voice for the merchant", "TTS…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when building an FPS, first-person movement, or a 3D character that walks, jumps, and reacts to external forces — production-quality first-person controller with WASD, mouse look, jump, coyote time, jump buffering, air control, and external-velocity handling. Trigger on "FPS", "first-person", "WASD", "character…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when the user reports a bug, crash, error, or unexpected behavior in a Summer project, before making code or scene changes. Runs a disciplined script-errors, console, debugger, hypothesis, fix, and verify loop. Trigger on "debug", "crash", "error", "broken", "not working", "freezes", "wrong".
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when the user wants to assess or prepare a Summer game export. Inventories the templates and targets actually available in the installed Summer Engine build, validates release assets and configuration, and produces only locally supported builds after approval. It does not publish, upload, host, or submit a game.…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when the user wants to run or test the game on a real target instead of the editor — a phone, tablet, or another computer ("deploy to my phone", "run on device", "test on Android/iOS", "remote deploy", "one-click deploy", "play on hardware"). Covers the topnav Remote Deploy button, runnable export presets, export…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when designing or fixing the targeting system for an auto-fire weapon (survivors-genre, top-down ARPG, tower-defense). Covers the pending-damage pattern that prevents over-commit when bullet flight time is longer than fire rate. Trigger on "auto-fire", "auto-aim", "weapon targeting", "targeting", "wasted bullets"…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when designing one specific game mechanic in detail — input, response, feedback, failure modes, depth, tunables. Outputs a design doc and a scaffolding-ready node-graph sketch + GDScript stub. Trigger on "design a mechanic", "how should X work", "design the parry", "design the dash", "design the inventory", "the…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when designing a single level — layout, pacing, encounters, secrets, reward gating. Outputs a level design doc and a concrete node-tree skeleton for summercreatescene. Trigger on "design a level", "design level 1", "tutorial level", "boss arena", "design the encounter", "make a level layout".
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when the user wants to go from a scene reference image or concept art to a playable Summer Engine scene populated with the right assets and terrain. Orchestrates concept, asset pack, terrain, composition, and scene assembly. Trigger on "build this scene", "make this playable", "I want a level that looks like…
SummerEngine/summer-engine-agent
Skill Claude CodeCodex
Use when designing the state layer of a multiplayer Summer game: deciding what the host owns, how clients request changes, and how the host validates and broadcasts. Pairs with /peer-to-peer-multiplayer. Trigger on "host authority", "authoritative state", "state ownership", "MP cheating", "client validation", "RPC…