nutria-plugin 0.0.1.3a0

SDK for building, validating, signing, and packaging Nutria plugins

nutria-plugin SDK

SDK for building, validating, signing, and packaging Nutria plugins.

Install

pip install nutria-plugin
# or with uv
uv add nutria-plugin

Quickstart

1. Scaffold a new plugin

nutria-plugin new my-workspace-plugin --name "My Workspace Plugin"

This creates:

my-workspace-plugin/
  plugin.json          # manifest — edit this
  README.md
  connections/         # one JSON file per connection
  skills/              # SKILL.md files
  context_docs/        # Markdown docs injected into persona prompts
  specs/               # OpenAPI/WSDL specs
  hooks/hooks.json     # declarative hooks
  settings.schema.json # config schema shown in admin UI

2. Edit plugin.json

{
  "schema_version": "1.0",
  "id": "my-workspace-plugin",
  "name": "My Workspace Plugin",
  "version": "0.1.0",
  "description": "Connects Nutria to My Workspace tool",
  "author": "Your Name",
  "runtime_types": ["declarative_api"],
  "required_secrets": ["API_KEY"],
  "remote_endpoints": ["https://api.myworkspace.com"]
}

3. Validate

nutria-plugin validate .
# OK

4. Pack

nutria-plugin pack . --output my-workspace-plugin-0.1.0.zip
# Packed: my-workspace-plugin-0.1.0.zip

5. Sign (optional)

Generate a key pair once:

nutria-plugin keygen --out my-signing-key
# Private key: my-signing-key.pem
# Public key:  my-signing-key.pub.pem

Sign before packing:

nutria-plugin sign plugin.json --key my-signing-key.pem
nutria-plugin pack . --output my-workspace-plugin-0.1.0.zip

Or sign during pack:

nutria-plugin pack . --key my-signing-key.pem --output my-workspace-plugin-0.1.0.zip

Configure the Nutria instance to trust your public key:

export NUTRIA_PLUGIN_TRUSTED_KEYS='["-----BEGIN PUBLIC KEY-----\n..."]'

Python API

from nutria_plugin import (
    PluginManifest,
    load_plugin_bundle,
    extract_plugin_bundle,
    validate_zip,
    scaffold_plugin,
    pack_plugin,
    validate_plugin_dir,
    generate_keypair,
    sign_manifest,
    verify_manifest,
    SignatureStatus,
)

# Parse a manifest
manifest = PluginManifest.from_file(Path("plugin.json"))

# Load from ZIP bytes
manifest = load_plugin_bundle(zip_bytes)

# Extract to disk
manifest = extract_plugin_bundle(zip_bytes, target_dir)

# Sign and verify
private_pem, public_pem = generate_keypair()
sig = sign_manifest(manifest.model_dump(), private_pem)
status = verify_manifest(manifest.model_dump())
assert status == SignatureStatus.VERIFIED

Plugin ZIP format

Path	Description
plugin.json	Manifest (required)
README.md	Human-readable description
connections/*.json	Connection definitions
skills/<name>/SKILL.md	Skill instructions
context_docs/*.md	Docs injected into persona prompts
specs/openapi.json	OpenAPI spec (for openapi_bridge runtime)
specs/service.wsdl	WSDL spec (for soap_bridge runtime)
hooks/hooks.json	Declarative hooks
settings.schema.json	JSON Schema for configuration
assets/icon.png	Plugin icon

Security rules

• No executable files (.py, .js, .sh, etc.) allowed in the ZIP.
• No hidden files or directories.
• No absolute paths or path traversal in ZIP entries.
• Maximum bundle size: 20 MB.
• Secrets are never stored in the ZIP — they are configured after install.

Runtime types

Value	Description
remote_mcp	Plugin connects to a separately deployed MCP server
declarative_api	Plugin uses declarative connection JSON files (no server needed)
openapi_bridge	Nutria auto-generates tools from an OpenAPI/Swagger spec
soap_bridge	Nutria auto-generates tools from a WSDL/SOAP spec

License

MIT