Behavior Runtime Engine (behavior-mcp)
This skill provides step-by-step guidance and operational patterns for interacting with @putervision/behavior-mcp with project slug "world-model-mcp".
1. Role in the PuterVision Pentad
- Workflow State (
state-memory-mcp): Persistent task DAGs, decisions, milestones, and blockers. - Perception (
vision-memory-mcp): Visual layout caching, screenshots, and visual specifications. - Spatial World (
world-model-mcp): Persistent 3D/2D coordinates, bounding boxes, and topological relations. - Strategic Reasoning (
agent-reasoning-mcp): Strategic BDI goals, utility scoring, and intention dispatch. - Tactical Execution (
behavior-mcp): High-frequency (~60Hz) deterministic behavior tree execution directly in browser runtimes with reactive interrupts.
2. Core Operational Sequence
- Define or Load Behavior: Call
load_behaviorwithaction: "load"to inject and start tree execution. - Register Reactive Triggers: Configure emergency preemption using
register_triggerwith priority and cooldown guards. - Monitor Telemetry: Poll execution health, tick rates, and active traversal nodes with
get_status. - Runtime Blackboard: Read and mutate execution variables via
manage_blackboard. - Safety Guardrails: Immediately halt or pause rogue states using
abort_behavior.
3. Complete 10 Consolidated MCP Tools Reference
| Tool Name | Key Actions | Key Parameters | Description |
|---|---|---|---|
load_behavior |
load, unload, swap |
behavior_name, behavior_version, parameters, intention_id |
Hot-swap, inject, or initialize behavior tree instances in browser runtime. |
set_parameters |
set, get, reset |
execution_id, parameters |
Dynamically update or query execution parameters for the active tree. |
get_status |
current, history, tree_state |
execution_id, limit |
Query active behavior status, current node path, tick count, duration, and errors. |
abort_behavior |
abort, pause, resume |
execution_id, reason |
Immediately halt, pause, or resume execution and disengage active inputs. |
register_trigger |
register, list |
name, condition_type, priority, cooldown_ms, behavior_name |
Configure reactive interrupt triggers with priority preemption and cooldowns. |
replay_recording |
capture, list |
recording_id, execution_id, frames, name |
Capture or replay deterministic browser action sequences with adaptive timing. |
get_metrics |
current, history, aggregate, compare |
execution_id, behavior_name, limit |
Retrieve execution telemetry, tick durations, stuck events, and statistics. |
manage_behaviors |
register, list, get |
name, version, tree, tree_json, description |
CRUD operations for immutable JSON behavior trees with SHA-256 tree hash verification. |
manage_blackboard |
get, set |
execution_id, key, value |
Read or write shared behavior tree blackboard state variables. |
manage_runtime_db |
stats, audit, snapshot, diff, restore |
action, name, description |
Database maintenance, diagnostics, and SHA-256 Merkle audit verification. |