Feat: Add MCP Registry Plan

mcp/.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyderworkspace
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# Terraform
+.terraform/
+.terraform.lock.hcl
+terraform.tfstate
+terraform.tfstate.backup
+tfplan
+terraform.tfvars
+*.plan
+*.tfstate
+*.tfstate.backup
+
+# VSCode
+.vscode/
+
+# PyCharm
+.idea/

mcp/Dockerfile

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+# Use an official Python runtime as a parent image
+FROM python:3.11-slim
+
+# Set the working directory in the container
+WORKDIR /app
+
+# Copy the pyproject.toml file and install dependencies
+COPY pyproject.toml .
+COPY ./mcp_registry ./mcp_registry
+RUN pip install --no-cache-dir .
+
+# Expose the port the app runs on
+EXPOSE 80
+
+# Run the application
+CMD ["uvicorn", "mcp_registry.main:app", "--host", "0.0.0.0", "--port", "80"]

mcp/mcp_registry/crud.py

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+from sqlalchemy.orm import Session
+from . import models, schemas
+
+def get_agent(db: Session, agent_id: int):
+    return db.query(models.Agent).filter(models.Agent.id == agent_id, models.Agent.is_deleted == False).first()
+
+def get_agents(db: Session, skip: int = 0, limit: int = 100):
+    return db.query(models.Agent).filter(models.Agent.is_deleted == False).offset(skip).limit(limit).all()
+
+def create_agent(db: Session, agent: schemas.AgentCreate):
+    db_agent = models.Agent(
+        name=agent.name,
+        version=agent.version,
+        display_name=agent.display_name,
+        description=agent.description,
+        owner=agent.owner,
+        endpoint=agent.endpoint,
+        openapi_spec=agent.openapi_spec,
+        environment=agent.environment,
+        tags=agent.tags,
+        openapi_spec_s3_uri=agent.openapi_spec_s3_uri,
+        openapi_spec_checksum=agent.openapi_spec_checksum
+    )
+    for capability_data in agent.capabilities:
+        capability = get_capability_by_name(db, name=capability_data.name)
+        if not capability:
+            capability = create_capability(db, capability_data)
+        db_agent.capabilities.append(capability)
+
+    db.add(db_agent)
+    db.commit()
+    db.refresh(db_agent)
+    return db_agent
+
+def get_capability(db: Session, capability_id: int):
+    return db.query(models.Capability).filter(models.Capability.id == capability_id).first()
+
+def get_capability_by_name(db: Session, name: str):
+    return db.query(models.Capability).filter(models.Capability.name == name).first()
+
+def get_capabilities(db: Session, skip: int = 0, limit: int = 100):
+    return db.query(models.Capability).offset(skip).limit(limit).all()
+
+def create_capability(db: Session, capability: schemas.CapabilityCreate):
+    db_capability = models.Capability(**capability.dict())
+    db.add(db_capability)
+    return db_capability
+
+def get_agents_by_capability(db: Session, capability_name: str):
+    return db.query(models.Agent).join(models.Agent.capabilities).filter(models.Capability.name == capability_name, models.Agent.is_deleted == False).all()

mcp/mcp_registry/database.py

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+import os
+from dotenv import load_dotenv
+
+from sqlalchemy import create_engine, Column, String, Text, Boolean, DateTime, ARRAY, Integer, UniqueConstraint, Table, ForeignKey
+from sqlalchemy.dialects.postgresql import JSONB
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker, relationship
+from datetime import datetime
+
+load_dotenv() # Load environment variables from .env file
+
+# Database connection string from environment variable
+DATABASE_URL = os.getenv("DATABASE_URL")
+if not DATABASE_URL:
+    raise ValueError("DATABASE_URL environment variable not set")
+
+engine = create_engine(DATABASE_URL)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+Base = declarative_base()
+
+agent_capability_association = Table(
+    'agent_capability_association',
+    Base.metadata,
+    Column('agent_id', Integer, ForeignKey('agents.id'), primary_key=True),
+    Column('capability_id', Integer, ForeignKey('capabilities.id'), primary_key=True)
+)
+
+class Agent(Base):
+    __tablename__ = "agents"
+
+    id = Column(Integer, primary_key=True, index=True) # Auto-incrementing primary key
+    name = Column(String, index=True, nullable=False)
+    version = Column(String, index=True, nullable=False)
+    display_name = Column(String, nullable=True)
+    description = Column(Text, nullable=False)
+    owner = Column(String, nullable=False)
+    endpoint = Column(String, nullable=False)
+    openapi_spec = Column(JSONB, nullable=False) # Storing full OpenAPI spec as JSONB for now
+    environment = Column(String, index=True, nullable=False)
+    tags = Column(ARRAY(String), nullable=True)
+    openapi_spec_s3_uri = Column(String, nullable=True)
+    openapi_spec_checksum = Column(String, nullable=True)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    is_deleted = Column(Boolean, default=False)
+
+    capabilities = relationship(
+        "Capability",
+        secondary=agent_capability_association,
+        back_populates="agents"
+    )
+
+    # Unique constraint on name and version
+    __table_args__ = (
+        UniqueConstraint('name', 'version', name='_name_version_uc'),
+    )
+
+    def __repr__(self):
+        return f"<Agent(name='{self.name}', version='{self.version}', environment='{self.environment}')>"
+
+class Capability(Base):
+    __tablename__ = 'capabilities'
+
+    id = Column(Integer, primary_key=True, index=True)
+    name = Column(String, unique=True, index=True)
+    description = Column(Text)
+
+    agents = relationship(
+        "Agent",
+        secondary=agent_capability_association,
+        back_populates="capabilities"
+    )
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+
+def create_db_and_tables():
+    Base.metadata.create_all(bind=engine)

mcp/mcp_registry/main.py

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+# main.py
+
+from typing import List
+from fastapi import FastAPI, Depends
+from sqlalchemy.orm import Session
+
+from . import crud, models, schemas
+from .database import engine, create_db_and_tables, get_db
+
+
+
+app = FastAPI()
+
+
+
+@app.on_event("startup")
+def on_startup():
+    create_db_and_tables()
+
+
+@app.post("/agents/", response_model=schemas.Agent)
+def create_agent(agent: schemas.AgentCreate, db: Session = Depends(get_db)):
+    return crud.create_agent(db=db, agent=agent)
+
+
+@app.get("/agents/", response_model=List[schemas.Agent])
+def read_agents(skip: int = 0, limit: int = 100, db: Session = Depends(get_db)):
+    agents = crud.get_agents(db, skip=skip, limit=limit)
+    return agents
+
+
+@app.get("/search/", response_model=List[schemas.Agent])
+def search_agents_by_capability(capability_name: str, db: Session = Depends(get_db)):
+    return crud.get_agents_by_capability(db=db, capability_name=capability_name)
+
+
+@app.post("/capabilities/", response_model=schemas.Capability)
+def create_capability(
+    capability: schemas.CapabilityCreate, db: Session = Depends(get_db)
+):
+    return crud.create_capability(db=db, capability=capability)
+
+
+@app.get("/")
+async def root():
+    return {"message": "Hello MCP Registry!"}

mcp/mcp_registry/schemas.py

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+from typing import List, Optional
+from pydantic import BaseModel, Field
+
+class CapabilityBase(BaseModel):
+    name: str
+    description: Optional[str] = None
+
+class CapabilityCreate(CapabilityBase):
+    pass
+
+class CapabilitySimple(CapabilityBase):
+    id: int
+
+    class Config:
+        orm_mode = True
+
+class AgentBase(BaseModel):
+    name: str
+    version: str
+    display_name: Optional[str] = None
+    description: str
+    owner: str
+    endpoint: str
+    openapi_spec: dict
+    environment: str
+    tags: Optional[List[str]] = None
+    openapi_spec_s3_uri: Optional[str] = None
+    openapi_spec_checksum: Optional[str] = None
+
+class AgentSimple(AgentBase):
+    id: int
+
+    class Config:
+        orm_mode = True
+
+class AgentCreate(AgentBase):
+    capabilities: List[CapabilityCreate] = []
+
+class Agent(AgentBase):
+    id: int
+    capabilities: List[CapabilitySimple] = Field(default_factory=list)
+
+    class Config:
+        orm_mode = True
+
+class Capability(CapabilityBase):
+    id: int
+    agents: List[AgentSimple] = Field(default_factory=list)
+
+    class Config:
+        orm_mode = True
+
+Capability.update_forward_refs()
+Agent.update_forward_refs()