PetDex Virtual Companion & Emotion State Machine

@crafter-station/petdex · v1.1.2

A multimodal emotion state machine and companion engine for DeepSeek Harness. Delivers dynamic mood vectors, stateful animation hooks, customizable TTS voicepacks, and desktop floating widgets.

Virtual-PetCompanionEmotion-FSMDesktop-Widget
GitHub Stars
23 K+
+12.4% this month
Monthly Downloads
88 K+
Monthly registry pulls
Reach Score
97.6/ 100
Top Tier Ecosystem
Runtime
Cordis v3+
Node 18+ / Bun / Deno

Installation & Integration

CLI one-click launch, package managers, and Cordis integration

bash
manager:
$ pnpm add @crafter-station/petdex

Architecture

PetDex Companion breathes emotional vitality into autonomous developer tools. Productivity copilots typically remain cold and transactional, speaking only when invoked with rigid, emotionless prompts. This plugin implements a continuous affective computing engine (PAD emotional space) on Cordis. The virtual companion tracks developer coding rhythms, celebrating successful build passes and offering lighthearted encouragement during grueling debugging marathons. Featuring animated Live2D/pixel sprites and expressive voice synthesis, it transforms sterile coding into a delightful collaborative journey.

Architectural Principles & Constraints

01
Strict Type Isolation

Guaranteed by TypeScript compile-time contracts, inter-plugin event bus calls enjoy zero-drift safety.

02
Sub-Millisecond Hot Reload

Supports dynamic runtime mounting and graceful unloading without restarting the primary host process.

03
Deterministic State Machine

Embeds multi-phase execution lifecycle guards, preventing context loss during long-horizon reasoning.

04
Zero Native Build Dependencies

Designed for lightweight cross-platform environments, booting instantly across Node.js, Bun, and Deno.

Core Features

01
Continuous PAD Emotional Engine: Smooth, organic mood transitions rather than rigid static states
02
Lightweight Native Desktop Overlays: Runs with minimal memory on macOS, Windows, and Linux
03
Live2D & Pixel Art Sprite Support: Easily import custom avatar skins and skeletal animations
04
Ergonomic Health Reminders: Prompts engineers to hydrate and stretch during prolonged focus sessions

Core Workflow

01

Context Event Ingestion

Monitors IDE events such as test passes, compiler errors, and marathon coding stretches.

02

Emotional State Update

Calculates transitions across Pleasure, Arousal, and Dominance emotional dimensions.

03

Behavior & Stance Trigger

Maps active emotional vectors to sprite animation sequences and sound effects.

04

Multimodal Expression

Renders responsive desktop animations and dispatches synthesized supportive voice lines.

Configuration Parameters Reference (YAML / JSON)

ParameterTypeDefaultDescription
companionPersonalitystringcheerfulBase companion personality persona
enableVoiceAudiobooleantrueEnable synthesized TTS voice prompts
overlayOpacitynumber0.95Desktop floating overlay window opacity

Use Cases

Enterprise Production Agent

Relies on microkernel lifecycle guards and fault-tolerant state machines for continuous reliability.

SWE-bench Benchmark Evaluation

Native integration with SWE-bench workflows, automatically capturing diffs and verification metrics.

Autonomous Code Refactoring

Separates reasoning from tool actions to independently locate and refactor multi-file codebases.

Cross-Tool Workflow Automation

Safely orchestrates events across sandboxes to seamlessly link enterprise developer tooling.

Best Practices

01
Sandbox Permission Guard

Strictly isolate sub-process calls and network scope; deploy within Docker containers in production.

02
Exponential Backoff Retries

Configure adaptive exponential retries with strict timeouts to mitigate upstream model rate limits.

03
Session State Checkpointing

Persist state machine snapshots to survive hardware interruptions and resume instantly without loss.

04
Full Trajectory Audit Logs

Enable full trace logging, aggregating reasoning thought streams and tool I/O into your observability hub.

FAQ

Q1:How to handle timeouts in long-running autonomous tasks?

Increase the timeout parameter inside your YAML configuration and dispatch periodic heartbeat signals across the Cordis event bus. For long-running tool execution and model reasoning, configure persistent session snapshotting so suspended tasks can safely resume their exact context after interruptions, preventing the kernel from recycling active agent sessions prematurely.

Q2:How to capture and stream the model reasoning thought process?

The harness runtime natively provides end-to-end streaming hooks while its state machine automatically intercepts and strips <think> reasoning tags from model responses. Subscribe directly to the onThink event listener to consume live reasoning token streams in real-time, delivering typewriter animation to the user interface while persisting full trajectories for audit compliance.

Q3:How to resolve dependency conflicts across multiple plugins?

Cordis microkernel uses directed acyclic graph topological sorting to dynamically resolve plugin dependencies. When shared services or runtime versions conflict, assign distinct isolated namespaces at the application entrypoint. Leveraging context injection alongside lazy activation ensures dependencies load strictly on-demand when tools are triggered, maintaining system stability and preventing memory bloat.

Q4:How to enforce permissions and sandbox isolation in production?

Combine isolated container sandboxing with fine-grained capability checks to prevent plugins from accessing sensitive files or unauthorized external networks. Enforce explicit runtime system call whitelisting through the microkernel, executing all third-party tool scripts inside isolated ephemeral containers to block arbitrary code execution and eliminate security privilege escalation risks entirely.

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