ASTRA MCP Server

ASTRA — Unified Research Lab + MCP Server

Autonomous Sentient Thoughtful Reasoning Agent

     

Production-grade Model Context Protocol server exposing the ASTRA bio-hybrid neuromorphic simulation pipeline to AI assistants. Built with the official @modelcontextprotocol/sdk, it integrates a layered SNN LIF+STDP engine, consciousness proxy assessment, bio-computing platform telemetry, and an IRB ethics monitor — all queryable as MCP tools, resources, and prompts from Claude Desktop, Cursor, VS Code, and any MCP-compatible client.

FinalSpark (800K neurons) ──┐
Cortical Labs CL1 ──────────┼─→ Spike Encoders → SNN (LIF+STDP, 128 neurons) → ACM Proxies
Koniku Kore ────────────────┘         │                    │
                                      │              ┌─────┴─────┐
                                      │              │  Φ̃  GW̃  PAD̃  │
                                      │              └─────┬─────┘
                                      ├─→ Ethics IRB Monitor (mode-aware)
                                      └─→ MCP Server (24 tools · 8 resources · 5 prompts)

Note on data mode: In the default sim mode, all bio-platform data is synthetically generated. The server is designed to connect to live platforms in live mode, but this requires hardware access and appropriate IRB approval.

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What's New in v2

• Layered SNN architecture: Configurable feed-forward + recurrent topology (default: 32→64→16→16 = 128 neurons) replacing the flat random network
• Event-driven STDP: O(spikes × fan-out) instead of O(N²) per timestep
• Ring buffer: O(1) spike history eviction replacing O(n) Array.shift()
• Sparse weight storage: Adjacency lists instead of dense N×N matrix
• Honest ACM naming: Proxies clearly labelled as integrationProxy, broadcastProxy, arousalProxy with methodological basis strings — no false IIT/GWT/PAD claims
• Bounds-checked parameters: set_parameter rejects implausible values (NaN, Infinity, out-of-range)
• Mode-aware ethics: Reports distinguish simulated vs live data with explicit disclaimers
• CI pipeline: GitHub Actions for build, test, and Docker smoke-test
• Repo hygiene: dist/ excluded from VCS, .gitignore added, deployment script removed

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Quick Start

git clone https://github.com/christophejlegros-lgtm/ASTRA-Unified-ResearchLab-MCP-v2.1.git
cd ASTRA-Unified-ResearchLab-MCP-v2.1

# Install & build
npm install
npm run build

# Run (stdio — for Claude Desktop / Cursor)
node dist/index.js

# Or dev mode (no build needed)
npm run dev

Transports

| Transport | Command | Port | Clients | |---|---|---|---| | stdio | node dist/index.js | — | Claude Desktop, Cursor, VS Code | | SSE | node dist/sse-server.js | 9002 | Web clients, remote agents | | Streamable HTTP | node dist/http-server.js | 9003 | Modern MCP clients (spec 2025-11-25) |

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Client Configuration

Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "astra": {
      "command": "node",
      "args": ["/absolute/path/to/dist/index.js"],
      "env": { "ASTRA_LOG_LEVEL": "info" }
    }
  }
}

Cursor

Add to .cursor/mcp.json (project) or ~/.cursor/mcp.json (global):

{
  "mcpServers": {
    "astra": {
      "command": "node",
      "args": ["/absolute/path/to/dist/index.js"]
    }
  }
}

VS Code

Add to .vscode/settings.json:

{
  "mcp": {
    "servers": {
      "astra": {
        "type": "stdio",
        "command": "node",
        "args": ["${workspaceFolder}/dist/index.js"]
      }
    }
  }
}

Docker (remote SSE + HTTP)

docker compose up -d
# SSE: http://host:9002/sse
# HTTP: http://host:9003/mcp

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MCP Tools (24)

All tools declare MCP annotations (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) and human-readable titles.

| Tool | Title | Annotations | |---|---|---| | get_system_status | ASTRA System Status | 📖 read-only | | get_metrics | Real-time Metrics | 📖 read-only | | get_snn_state | SNN Engine State | 📖 read-only | | snn_step | Advance SNN Simulation | ✏️ mutating | | snn_reset | Reset SNN Engine | ⚠️ destructive | | inject_spikes | Spike Injection | ✏️ mutating | | get_acm_score | Consciousness Assessment (Proxy) | 📖 read-only | | check_ethics | IRB Neural Welfare Check | 📖 read-only | | set_parameter | Modify State Parameter | ⚠️ destructive, bounds-checked | | get_platform_status | Bio-Computing Platforms | 📖 read-only · 🌐 open-world | | export_snapshot | Full State Snapshot | 📖 read-only | | simulation_control | Simulation Control | ✏️ mutating |

MCP Resources (8)

| URI | Description | |---|---| | astra://metrics/realtime | Live metrics from all subsystems | | astra://snn/topology | Actual network architecture (reflects engine config) | | astra://acm/state | Current consciousness proxy assessment vector | | astra://ethics/welfare | IRB compliance and welfare report (mode-aware) | | astra://snapshot/current | Complete state dump |

MCP Prompts (5)

Pre-built workflow templates that orchestrate multi-tool sequences:

| Prompt | Description | |---|---| | system-health-report | Orchestrates 5 tools into a comprehensive system report | | snn-experiment | Controlled SNN experiment: reset → stimulate → observe STDP → assess proxies | | ethics-stress-test | Progressive biomarker degradation: NORMAL → STRESS → DISTRESS → recovery |

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Architecture

.github/workflows/
└── ci.yml                # GitHub Actions: build, test, Docker smoke-test

src/
├── index.ts              # stdio transport entry point
├── sse-server.ts         # SSE transport (Express)
├── http-server.ts        # Streamable HTTP transport (Express)
├── server.ts             # MCP server factory (24 tools + 5 prompts + 8 resources)
│   ├── server-wm-tools.ts    # World Model JEPA tools (6 tools + 2 resources + 1 prompt)
│   ├── server-sensor-tools.ts # Multimodal sensor tools (6 tools + 1 resource + 1 prompt)
├── engine/
│   ├── state.ts          # Reactive state store + parameter bounds registry
│   ├── snn.ts            # Layered SNN LIF+STDP engine (Map-indexed sparse weights, event-driven)
│   ├── acm.ts            # Consciousness proxy module (Φ̃ + GW̃ + PAD̃)
│   ├── ethics.ts         # IRB ethics monitor (mode-aware, biomarker thresholds)
│   ├── world-model.ts     # JEPA World Model engine (LeWM adapted)
│   ├── wm-simulation.ts   # WM simulation manager (replay buffer, auto-train)
│   ├── multimodal-sensors.ts # V-JEPA 2 + A-JEPA + Koniku + fusion
│   └── simulation.ts     # Background tick loop
└── utils/
    └── logger.ts         # Structured logging (pino → stderr)

tests/
├── astra.test.ts         # Unit tests: state, bounds, SNN, ACM, ethics, security
├── world-model.test.ts   # World Model: encoder, predictor, SIGReg, CEM, surprise
├── wm-simulation.test.ts # WM simulation: buffer, training, planning, lifecycle
├── multimodal-sensors.test.ts # Sensors: V-JEPA, A-JEPA, Koniku, fusion, pipeline
└── integration.test.ts   # Client SDK integration: tools, resources, prompts, workflow

configs/                  # Ready-to-use client configurations

Extracted to separate repositories: The v1 HTML dashboard (4 669 lines) and the legacy Node.js bridge config have been removed from this repo to keep it focused on the MCP server. See ASTRA-Unified-ResearchLab-MCP- for the original dashboard.

SNN Engine

Layered LIF+STDP — Configurable layered architecture. Default: 32 (input) → 64 (hidden_1) → 16 (hidden_2) → 16 (output) = 128 neurons.

Connectivity: feed-forward between adjacent layers (30%) + sparse recurrent within layers (10%). Weights stored as sparse adjacency lists, not dense matrices.

Biophysical parameters: τ_m = 20ms, V_th = −50mV, V_reset = −70mV, refractory = 2ms. Background noise range [10, 22] mV produces ~2 spikes/step at steady state with all neurons active. STDP: A+ = 0.01, A− = 0.012, τ± = 20ms, event-driven (processes only spiking neurons per timestep).

The SNN topology resource (astra://snn/topology) dynamically reports the actual engine configuration, including layer sizes, synapse count, connectivity parameters, and weight storage type (Map-indexed sparse adjacency lists).

ACM — Consciousness Proxy Module

⚠ Methodological disclaimer: The metrics below are computational proxies inspired by the referenced theories. They are not faithful implementations. See source code comments for full details.

Composite score: ACM = α·Φ̃ + β·GW̃ + γ·PAD̃ (default: α=0.40, β=0.35, γ=0.25)

| Component | Basis | Inspired by | What it actually measures | |---|---|---|---| | integrationProxy (Φ̃) | Active fraction + mean firing rate + synaptic heterogeneity | IIT (Tononi) | Network participation and complexity proxy. True Φ is NP-hard to compute. | | broadcastProxy (GW̃) | Cross-layer firing rate synchrony (CV-based) | GWT (Baars) | Uniform activation across layers. Does not model competitive coalitions or ignition. | | arousalProxy (PAD̃) | Spike rate + bio coupling + energy | PAD (Mehrabian) | Arousal dimension only. Pleasure and Dominance are not computed. |

Ethics IRB Monitor

IRB compliance level N3 (100K–1M neurons). Four biomarkers with three-state classification.

Mode-aware: In sim mode, reports include explicit disclaimers that data is synthetic and irbRequired is false. In live mode, DISTRESS triggers mandatory IRB notification.

| Biomarker | Normal | Stress | Critical | |---|---|---|---| | Cell viability | ≥ 90% | 80–90% | < 80% | | Firing rate | 15–45 Hz | outside range | ≤ 5 or ≥ 60 Hz | | ATP/ADP | ≥ 3.0 | 2.0–3.0 | < 2.0 | | Calcium | < 100 nM | 100–200 nM | ≥ 200 nM |

Parameter Bounds

The set_parameter tool validates all numeric inputs against a bounds registry to prevent injection of absurd values (negative percentages, Infinity, NaN). Bounds are defined per parameter path — see src/engine/state.ts for the complete registry.

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Testing

# Full suite
npm test

# Unit tests only
node --import tsx --test tests/astra.test.ts

# Integration tests only (Client SDK)
node --import tsx --test tests/integration.test.ts

# MCP Inspector
npm run inspect

Development

npm run dev        # stdio (no build)
npm run dev:sse    # SSE on :9002
npm run dev:http   # HTTP on :9003
npm run watch      # TypeScript watch mode

Environment Variables

| Variable | Default | Description | |---|---|---| | ASTRA_LOG_LEVEL | info | debug, info, warn, error | | ASTRA_SSE_PORT | 9002 | SSE transport port | | ASTRA_HTTP_PORT | 9003 | Streamable HTTP port | | ASTRA_CORS_ORIGIN | * | CORS allowed origin |

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Scaling Notes

The default 128-neuron configuration is designed for interactive demonstration. To scale toward the aspirational 256→512→256→128 (1 152 neurons) architecture:

1. Pass custom layers to SNNEngine: new SNNEngine({ layers: [{ name: 'input', size: 256 }, ...] })
2. Event-driven STDP scales as O(spikes × average fan-out), not O(N²)
3. Map-indexed adjacency lists provide O(1) weight lookup per synapse
4. Sparse storage keeps memory proportional to actual synapses (~18 KB at 128 neurons vs 64 KB dense)
5. Consider increasing intervalMs in the simulation loop for larger networks
6. For >10K neurons, a Rust/WASM or Lava SDK backend is recommended

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License

MIT — © 2026 Christophe Jean Legros, Geneva

Assistance Multi IA · Assistant-Multi-AI@proton.me

References

• Model Context Protocol · Spec 2025-11-25
• MCP TypeScript SDK
• FinalSpark · Cortical Labs · Koniku
• Intel Lava / Loihi 2
• Gerstner & Kistler (2002) "Spiking Neuron Models"
• Tononi (2004) "An information integration theory of consciousness" — BMC Neuroscience
• Baars (1988) "A Cognitive Theory of Consciousness" — Cambridge University Press
• Mehrabian (1996) "Pleasure-Arousal-Dominance: A General Framework" — Current Psychology