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NotesAgentic/backend/app/contracts.py
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admin 2dc984401d feat(mcp): add standalone server registry
Implement C.1 stdio MCP server CRUD, encrypted environment secrets, command digest approval, connection tests, lifecycle recovery, and dynamic tool registration. Add the standalone frontend configuration center, contracts, regression tests, and development documentation.
2026-09-03 14:49:49 +08:00

887 lines
22 KiB
Python

from datetime import datetime
from enum import Enum
from typing import Annotated, Any, Literal
from pydantic import BaseModel, ConfigDict, Field, SecretStr
class Contract(BaseModel):
model_config = ConfigDict(extra="forbid")
class PageMeta(Contract):
total: int = 0
limit: int = 50
offset: int = 0
class ErrorDetail(Contract):
code: str
message: str
details: dict[str, Any] = Field(default_factory=dict)
class ErrorResponse(Contract):
error: ErrorDetail
class OperationResponse(Contract):
status: Literal["accepted", "completed"]
resource_id: str | None = None
message: str | None = None
# Workspace boundary (single configured Vault in Web development mode)
class WorkspaceInfo(Contract):
vault_id: str = "default"
name: str
path: str
file_count: int = 0
indexed_note_count: int = 0
requires_refresh: bool = False
class WorkspaceEntry(Contract):
entry_id: str
name: str
path: str
type: Literal["file", "folder"]
note_id: str | None = None
children: list["WorkspaceEntry"] = Field(default_factory=list)
class WorkspaceSnapshot(Contract):
workspace: WorkspaceInfo
items: list[WorkspaceEntry] = Field(default_factory=list)
class WorkspaceOpenRequest(Contract):
path: str | None = None
class FolderCreateRequest(Contract):
parent: str = ""
name: str = Field(min_length=1)
class FolderRenameRequest(Contract):
path: str
new_name: str = Field(min_length=1)
class FolderDeleteRequest(Contract):
path: str
# Notes and retrieval
class NoteBlock(Contract):
block_id: str
note_id: str
heading_path: list[str] = Field(default_factory=list)
start_offset: int
end_offset: int
content: str
content_hash: str
token_count: int
class NoteSummary(Contract):
note_id: str
title: str
file_path: str
tags: list[str] = Field(default_factory=list)
created_at: datetime
updated_at: datetime
class Note(NoteSummary):
markdown: str
blocks: list[NoteBlock] = Field(default_factory=list)
class NoteListResponse(Contract):
items: list[NoteSummary] = Field(default_factory=list)
page: PageMeta = Field(default_factory=PageMeta)
class NoteCreateRequest(Contract):
title: str = Field(min_length=1)
markdown: str = ""
folder: str | None = None
tags: list[str] = Field(default_factory=list)
class NoteUpdateRequest(Contract):
title: str | None = None
markdown: str | None = None
tags: list[str] | None = None
class NoteMoveRequest(Contract):
folder: str
class NoteRenameRequest(Contract):
file_name: str = Field(min_length=1)
class SearchMode(str, Enum):
fts = "fts"
vector = "vector"
hybrid = "hybrid"
class SearchRequest(Contract):
query: str = Field(min_length=1)
mode: SearchMode = SearchMode.hybrid
folders: list[str] = Field(default_factory=list)
note_ids: list[str] = Field(default_factory=list)
tags: list[str] = Field(default_factory=list)
created_from: datetime | None = None
created_to: datetime | None = None
updated_from: datetime | None = None
updated_to: datetime | None = None
limit: int = Field(default=20, ge=1, le=100)
offset: int = Field(default=0, ge=0)
include_snippet: bool = True
class Citation(Contract):
citation_id: str
note_id: str
block_id: str
file_path: str
heading_path: list[str] = Field(default_factory=list)
start_offset: int | None = None
end_offset: int | None = None
source_audio: str | None = None
start_time: float | None = None
end_time: float | None = None
speaker: str | None = None
class SearchResult(Contract):
note_id: str
block_id: str
title: str
file_path: str
heading_path: list[str] = Field(default_factory=list)
snippet: str | None = None
score: float
citation: Citation
class SearchResponse(Contract):
query: str
mode: SearchMode
items: list[SearchResult] = Field(default_factory=list)
page: PageMeta = Field(default_factory=PageMeta)
# Model, chat and tools
class MessageRole(str, Enum):
system = "system"
user = "user"
assistant = "assistant"
tool = "tool"
class Message(Contract):
role: MessageRole
content: str
name: str | None = None
tool_call_id: str | None = None
tool_calls: list["ToolCall"] = Field(default_factory=list)
class ToolDefinition(Contract):
name: str
description: str
parameters: dict[str, Any] = Field(default_factory=dict)
permission: str | None = None
source: Literal["builtin", "plugin", "mcp_server"] = "builtin"
class ToolCall(Contract):
tool_call_id: str
name: str
arguments: dict[str, Any] = Field(default_factory=dict)
class ToolResult(Contract):
tool_call_id: str
name: str
success: bool
output: Any | None = None
error_code: str | None = None
error_message: str | None = None
duration_ms: int | None = None
class ToolListResponse(Contract):
items: list[ToolDefinition] = Field(default_factory=list)
class ModelCapability(str, Enum):
chat = "chat"
vision = "vision"
tool_calling = "tool_calling"
reasoning = "reasoning"
streaming = "streaming"
structured_output = "structured_output"
embedding = "embedding"
class ModelRequest(Contract):
provider_id: str
model: str
system: str | None = None
messages: list[Message]
tools: list[ToolDefinition] = Field(default_factory=list)
temperature: float | None = Field(default=None, ge=0, le=2)
max_tokens: int | None = Field(default=None, ge=1)
response_format: dict[str, Any] | None = None
attachments: list[str] = Field(default_factory=list)
metadata: dict[str, Any] = Field(default_factory=dict)
class ChatRequest(ModelRequest):
conversation_id: str | None = None
use_rag: bool = True
retrieval: SearchRequest | None = None
class ModelEventType(str, Enum):
text_delta = "TextDelta"
thinking_delta = "ThinkingDelta"
tool_call_start = "ToolCallStart"
tool_call_delta = "ToolCallDelta"
tool_call_end = "ToolCallEnd"
usage = "Usage"
error = "Error"
done = "Done"
class ModelEvent(Contract):
event: ModelEventType
sequence: int = 0
data: dict[str, Any] = Field(default_factory=dict)
timestamp: datetime
# Agent
class AgentRunStatus(str, Enum):
queued = "queued"
running = "running"
waiting_permission = "waiting_permission"
completed = "completed"
failed = "failed"
cancelled = "cancelled"
class AgentRunCreateRequest(Contract):
input: str = Field(min_length=1)
provider_id: str
model: str
skill_id: str | None = None
allowed_tools: list[str] = Field(default_factory=list)
max_steps: int = Field(default=10, ge=1, le=100)
tool_timeout_seconds: int = Field(default=30, ge=1)
run_timeout_seconds: int = Field(default=300, ge=1)
token_budget: int | None = Field(default=None, ge=1)
max_concurrent_tools: int = Field(default=1, ge=1)
allow_network: bool = False
metadata: dict[str, Any] = Field(default_factory=dict)
class AgentRun(Contract):
run_id: str
status: AgentRunStatus
input: str
provider_id: str
model: str
skill_id: str | None = None
current_step: int = 0
max_steps: int
token_budget: int | None = None
cancelled: bool = False
output: str | None = None
error_code: str | None = None
error_message: str | None = None
token_usage: int = 0
tool_results: list[ToolResult] = Field(default_factory=list)
citations: list[Citation] = Field(default_factory=list)
created_at: datetime
updated_at: datetime
class AgentRunListResponse(Contract):
items: list[AgentRun] = Field(default_factory=list)
page: PageMeta = Field(default_factory=PageMeta)
class AgentEventType(str, Enum):
run_started = "RunStarted"
text_delta = "TextDelta"
thinking_delta = "ThinkingDelta"
tool_call = "ToolCall"
tool_result = "ToolResult"
permission_required = "PermissionRequired"
usage = "Usage"
citation = "Citation"
model_call_started = "ModelCallStarted"
model_call_completed = "ModelCallCompleted"
model_call_failed = "ModelCallFailed"
permission_resolved = "PermissionResolved"
run_completed = "RunCompleted"
run_failed = "RunFailed"
run_cancelled = "RunCancelled"
class AgentEvent(Contract):
event: AgentEventType
run_id: str
sequence: int
data: dict[str, Any] = Field(default_factory=dict)
timestamp: datetime
class AgentTraceSummary(Contract):
model_calls: int = 0
tool_calls: int = 0
duration_ms: int = 0
token_usage: int = 0
errors: int = 0
class AgentTraceResponse(Contract):
run_id: str
status: AgentRunStatus
items: list[AgentEvent] = Field(default_factory=list)
next_sequence: int
has_more: bool = False
summary: AgentTraceSummary = Field(default_factory=AgentTraceSummary)
config_snapshot: dict[str, Any] = Field(default_factory=dict)
class PermissionDecisionRequest(Contract):
decision: Literal["allow_once", "allow_session", "deny"]
# Skills and plugins
class RetrievalConfig(Contract):
top_k: int = Field(default=10, ge=1, le=100)
rerank: bool = True
citation: bool = True
class SkillModelConfig(Contract):
required_capabilities: list[ModelCapability] = Field(default_factory=list)
class SkillManifest(Contract):
skill_id: str
name: str
version: str
description: str = ""
permissions: list[str] = Field(default_factory=list)
tools: list[str] = Field(default_factory=list)
retrieval: RetrievalConfig = Field(default_factory=RetrievalConfig)
model: SkillModelConfig = Field(default_factory=SkillModelConfig)
class SkillStatus(str, Enum):
installed = "installed"
disabled = "disabled"
ready = "ready"
dependency_missing = "dependency_missing"
permission_required = "permission_required"
error = "error"
class Skill(Contract):
manifest: SkillManifest
status: SkillStatus
enabled: bool = False
missing_dependencies: list[str] = Field(default_factory=list)
class SkillListResponse(Contract):
items: list[Skill] = Field(default_factory=list)
class ExtensionInstallRequest(Contract):
package_path: str
class PluginBackend(Contract):
type: Literal["mcp", "internal_rpc", "none"] = "none"
transport: Literal["stdio", "http", "none"] = "none"
command: str | None = None
args: list[str] = Field(default_factory=list)
startup_timeout_seconds: int = Field(default=10, ge=1, le=60)
tool_timeout_seconds: int = Field(default=30, ge=1, le=600)
class PluginContribution(Contract):
tools: list[str] = Field(default_factory=list)
commands: list[str] = Field(default_factory=list)
importers: list[str] = Field(default_factory=list)
exporters: list[str] = Field(default_factory=list)
panels: list[str] = Field(default_factory=list)
settings_sections: list[str] = Field(default_factory=list)
class PluginManifest(Contract):
plugin_id: str
name: str
version: str
description: str = ""
permissions: list[str] = Field(default_factory=list)
contributes: PluginContribution = Field(default_factory=PluginContribution)
backend: PluginBackend = Field(default_factory=PluginBackend)
class PluginStatus(str, Enum):
installed = "installed"
disabled = "disabled"
starting = "starting"
ready = "ready"
error = "error"
dependency_missing = "dependency_missing"
permission_required = "permission_required"
class Plugin(Contract):
manifest: PluginManifest
status: PluginStatus
enabled: bool = False
granted_permissions: list[str] = Field(default_factory=list)
error_message: str | None = None
class PluginListResponse(Contract):
items: list[Plugin] = Field(default_factory=list)
class PluginHostState(str, Enum):
stopped = "stopped"
starting = "starting"
ready = "ready"
unhealthy = "unhealthy"
error = "error"
class PluginHostStatus(Contract):
plugin_id: str
backend_type: Literal["mcp", "internal_rpc", "none"]
transport: Literal["stdio", "http", "none"]
status: PluginHostState
tools_count: int = 0
started_at: datetime | None = None
last_seen_at: datetime | None = None
protocol_version: str | None = None
server_name: str | None = None
server_version: str | None = None
error: str | None = None
# Independent user-managed MCP Server Registry. This is deliberately separate
# from Plugin manifests: a server can contribute tools without being a Plugin.
class McpServerTransport(str, Enum):
stdio = "stdio"
streamable_http = "streamable_http"
sse = "sse"
class McpServerCreateRequest(Contract):
name: str = Field(min_length=1, max_length=80)
transport: McpServerTransport = McpServerTransport.stdio
command: str = Field(min_length=1, max_length=1024)
args: list[str] = Field(default_factory=list, max_length=64)
environment: dict[str, str] = Field(default_factory=dict)
secret_environment_keys: list[str] = Field(default_factory=list)
permissions: list[str] = Field(default_factory=list)
startup_timeout_seconds: float = Field(default=15, ge=1, le=120)
tool_timeout_seconds: float = Field(default=30, ge=1, le=300)
class McpServerUpdateRequest(McpServerCreateRequest):
pass
class McpServerSecretWriteRequest(Contract):
secret: SecretStr = Field(min_length=1, max_length=32768)
class McpServerSecretStatus(Contract):
key: str
configured: bool
class McpServerTrustRequest(Contract):
command_digest: str = Field(min_length=64, max_length=64)
class McpServer(Contract):
server_id: str
name: str
transport: McpServerTransport
command: str
args: list[str] = Field(default_factory=list)
environment: dict[str, str] = Field(default_factory=dict)
secret_environment: dict[str, bool] = Field(default_factory=dict)
permissions: list[str] = Field(default_factory=list)
startup_timeout_seconds: float
tool_timeout_seconds: float
enabled: bool = False
trusted: bool = False
command_digest: str
command_summary: str
status: PluginHostState = PluginHostState.stopped
tools_count: int = 0
protocol_version: str | None = None
remote_server_name: str | None = None
remote_server_version: str | None = None
error: str | None = None
last_tested_at: datetime | None = None
last_test_succeeded: bool | None = None
class McpServerListResponse(Contract):
items: list[McpServer] = Field(default_factory=list)
class PluginCommandLocation(str, Enum):
command_palette = "command_palette"
context_menu = "context_menu"
toolbar = "toolbar"
class PluginCommand(Contract):
command_id: str
plugin_id: str
title: str
description: str = ""
icon: str | None = None
locations: list[PluginCommandLocation] = Field(default_factory=list)
when: list[str] = Field(default_factory=list)
parameters: dict[str, Any] = Field(default_factory=dict)
enabled: bool = True
class PluginCommandListResponse(Contract):
items: list[PluginCommand] = Field(default_factory=list)
class PluginCommandContext(Contract):
vault_id: str | None = None
note_id: str | None = None
file_path: str | None = None
selection: str | None = None
class PluginCommandExecuteRequest(Contract):
arguments: dict[str, Any] = Field(default_factory=dict)
context: PluginCommandContext = Field(default_factory=PluginCommandContext)
class PluginNotificationEffectPayload(Contract):
level: Literal["info", "success", "warning", "error"] = "info"
message: str = Field(min_length=1, max_length=4096)
class PluginNavigateEffectPayload(Contract):
route: Literal[
"vault-entry",
"workspace",
"search",
"chat",
"agent",
"tasks",
"skills",
"plugins",
"themes",
"settings",
]
class PluginRefreshEffectPayload(Contract):
scope: Literal["workspace", "commands", "settings", "plugins"]
class PluginJobEffectPayload(Contract):
job_id: str = Field(
min_length=1,
max_length=128,
pattern=r"^[A-Za-z0-9][A-Za-z0-9._:-]*$",
)
class PluginNoEffectPayload(Contract):
pass
class PluginNoEffect(Contract):
type: Literal["none"] = "none"
payload: PluginNoEffectPayload = Field(default_factory=PluginNoEffectPayload)
class PluginNotificationEffect(Contract):
type: Literal["notification"] = "notification"
payload: PluginNotificationEffectPayload
class PluginNavigateEffect(Contract):
type: Literal["navigate"] = "navigate"
payload: PluginNavigateEffectPayload
class PluginRefreshEffect(Contract):
type: Literal["refresh"] = "refresh"
payload: PluginRefreshEffectPayload
class PluginJobEffect(Contract):
type: Literal["job"] = "job"
payload: PluginJobEffectPayload
PluginCommandEffect = Annotated[
PluginNoEffect
| PluginNotificationEffect
| PluginNavigateEffect
| PluginRefreshEffect
| PluginJobEffect,
Field(discriminator="type"),
]
PLUGIN_COMMAND_EFFECT_TYPES = (
PluginNoEffect,
PluginNotificationEffect,
PluginNavigateEffect,
PluginRefreshEffect,
PluginJobEffect,
)
class PluginCommandResult(Contract):
command_id: str
status: Literal["completed"] = "completed"
effect: PluginCommandEffect = Field(default_factory=PluginNoEffect)
class PluginSettingType(str, Enum):
string = "string"
number = "number"
boolean = "boolean"
select = "select"
secret = "secret"
class PluginSettingField(Contract):
key: str
label: str
description: str = ""
type: PluginSettingType
required: bool = False
default: Any | None = None
minimum: float | None = None
maximum: float | None = None
options: list[str] = Field(default_factory=list)
class PluginSecretState(Contract):
configured: bool = False
class PluginSettingsSchema(Contract):
plugin_id: str
schema_version: int = Field(ge=1)
fields: list[PluginSettingField] = Field(default_factory=list)
values: dict[str, Any] = Field(default_factory=dict)
secrets: dict[str, PluginSecretState] = Field(default_factory=dict)
class PluginSettingsUpdateRequest(Contract):
schema_version: int = Field(ge=1)
values: dict[str, Any] = Field(default_factory=dict)
class PluginSecretWriteRequest(Contract):
secret: SecretStr
class PluginSecretStatus(Contract):
plugin_id: str
key: str
configured: bool
class PluginPermissionGrantRequest(Contract):
permissions: list[str] = Field(default_factory=list)
# Providers
class ProviderType(str, Enum):
mock = "mock"
openai_responses = "openai_responses"
openai_chat = "openai_chat"
openai_compatible = "openai_compatible"
anthropic_messages = "anthropic_messages"
ollama = "ollama"
class ProviderConfig(Contract):
provider_id: str
provider_type: ProviderType
name: str
base_url: str | None = None
default_model: str | None = None
credential_id: str | None = None
enabled: bool = True
capabilities: list[ModelCapability] = Field(default_factory=list)
class ProviderCreateRequest(Contract):
provider_type: ProviderType
name: str
base_url: str | None = None
default_model: str | None = None
credential_id: str | None = None
enabled: bool = True
class ProviderUpdateRequest(Contract):
name: str | None = None
base_url: str | None = None
default_model: str | None = None
credential_id: str | None = None
enabled: bool | None = None
class ProviderListResponse(Contract):
items: list[ProviderConfig] = Field(default_factory=list)
class ProviderPreset(Contract):
preset_id: str
name: str
provider_type: ProviderType
base_url: str
default_credential_id: str | None = None
requires_credential: bool = True
class ProviderPresetListResponse(Contract):
items: list[ProviderPreset] = Field(default_factory=list)
class CredentialWriteRequest(Contract):
api_key: SecretStr = Field(min_length=1, max_length=8192)
class CredentialStatus(Contract):
credential_id: str
configured: bool
class ModelInfo(Contract):
model: str
display_name: str
capabilities: list[ModelCapability] = Field(default_factory=list)
class ProviderModelsResponse(Contract):
provider_id: str
items: list[ModelInfo] = Field(default_factory=list)
class ProviderTestRequest(Contract):
provider_id: str
model: str | None = None
credential_context_id: str | None = None
class ProviderTestResponse(Contract):
provider_id: str
success: bool
latency_ms: int | None = None
message: str
# Tasks, media and index
class TaskStatus(str, Enum):
todo = "todo"
in_progress = "in_progress"
done = "done"
cancelled = "cancelled"
class Task(Contract):
task_id: str
title: str
description: str = ""
status: TaskStatus = TaskStatus.todo
note_id: str | None = None
due_at: datetime | None = None
created_at: datetime
updated_at: datetime
class TaskCreateRequest(Contract):
title: str = Field(min_length=1)
description: str = ""
note_id: str | None = None
due_at: datetime | None = None
class TaskUpdateRequest(Contract):
title: str | None = None
description: str | None = None
status: TaskStatus | None = None
note_id: str | None = None
due_at: datetime | None = None
class TaskListResponse(Contract):
items: list[Task] = Field(default_factory=list)
page: PageMeta = Field(default_factory=PageMeta)
class TranscriptionRequest(Contract):
attachment_id: str
language: str | None = None
diarization: bool = False
class TranscriptionJob(Contract):
job_id: str
attachment_id: str
status: Literal["queued", "processing", "completed", "failed"]
text: str | None = None
error_code: str | None = None
error_message: str | None = None
created_at: datetime
class IndexStatus(Contract):
status: Literal["idle", "queued", "running", "failed"] = "idle"
pending_jobs: int = 0
active_job_id: str | None = None
last_completed_at: datetime | None = None
error_message: str | None = None
class IndexRebuildRequest(Contract):
scope: Literal["all", "notes", "vectors"] = "all"
note_ids: list[str] = Field(default_factory=list)
force: bool = False
class IndexJob(Contract):
job_id: str
status: Literal["queued", "running", "completed", "failed"]
scope: Literal["all", "notes", "vectors"]
created_at: datetime