systemprompt-models

Foundation data models for systemprompt.io. Plain DTOs, on-disk configuration, protocol shapes (A2A, AG-UI, MCP), and the typed error enums every public function in the workspace returns. Consumed by every other layer (infra, domain, app, entry).

Layer: Shared — no dependencies on other systemprompt layers. Part of the systemprompt-core workspace.

Installation

[dependencies]
systemprompt-models = "0.9"

Module Map

Module	Purpose
`a2a`	A2A protocol: agent card, message, task, transport, security scheme types.
`admin`	Admin dashboard DTOs (analytics, traffic, log entries, user metrics).
`agui`	AG-UI streaming event protocol (events, payloads, builders).
`ai`	LLM request/response shapes, `AiProvider` trait, streaming chunks, tool execution.
`api`	Public HTTP envelopes, pagination, error model, cloud API DTOs.
`artifacts`	Typed tool-result artifacts (chart, table, image, cli, …) and conversion.
`auth`	Authenticated user, base roles, JWT audience, PKCE, grant types.
`bridge`	Cowork desktop bridge manifest types.
`config`	Global `Config` singleton assembled from profile + secrets.
`content`, `content_config`	Published content metadata and on-disk content routing.
`errors`	`thiserror`-derived `CoreError`, `RepositoryError`, `ServiceError`.
`events`	Analytics, A2A, context, and system event envelopes.
`execution`	`RequestContext`, `ExecutionStep`, planned-tool bookkeeping.
`extension`	Extension framework manifest and discovery types.
`gateway_hash`	Stable hashing helpers for gateway-derived identifiers.
`macros`	Crate-internal repository helper macros.
`mcp`	MCP server/registry config, deployment, auth state, provider traits.
`modules`	API path constants, CLI paths, service category resolution.
`net`	Network-layer value objects (ports, hosts).
`oauth`	OAuth client and server configuration shapes.
`paths`	Well-known directory layout helpers (`AppPaths`, `StoragePaths`, …).
`profile`	On-disk profile, security, server, cloud, database, paths configuration.
`repository`	`ServiceLifecycle` trait, `ServiceRecord`, `WhereClause` query builder.
`routing`	Request routing classification (`RouteClassifier`, `ApiCategory`).
`secrets`	Secrets document model and parsing.
`services`	Services manifest: agents, plugins, hooks, MCP, skills, scheduler, marketplace.
`text`, `time_format`	Small text and timestamp formatting helpers.
`users`	Public user and session summaries.
`validators`	Startup configuration validation passes.

Error Model

Three thiserror enums layered from database to HTTP:

RepositoryError → ServiceError → ApiError → HTTP Response

use systemprompt_models::{RepositoryError, ServiceError, ApiError};

let repo_err = RepositoryError::NotFound("user-123".to_string());
let svc_err: ServiceError = repo_err.into();
let api_err: ApiError = svc_err.into();

anyhow::Error is never used in a public signature in this crate.

Request Context

use systemprompt_models::{RequestContext, SessionId, TraceId, UserId, ContextId};

let ctx = RequestContext {
    session_id: SessionId::generate(),
    trace_id: TraceId::generate(),
    user_id: UserId::new("user-789"),
    context_id: ContextId::generate(),
    task_id: None,
    ai_tool_call_id: None,
    client_id: None,
    auth_token: None,
    user: None,
    start_time: std::time::Instant::now(),
    user_type: Default::default(),
};

Repository Helpers

use systemprompt_models::WhereClause;

let (clause, params) = WhereClause::new()
    .eq("status", "active")
    .is_not_null("pid")
    .build();

ServiceLifecycle provides the common get_running_services / mark_crashed / update_status surface implemented by repositories that supervise long-running processes.

Feature Flags

Feature	Default	Description
`web`	off	`axum::IntoResponse` impls for the API envelopes.

Dependencies

serde, serde_json, serde_yaml — serialization
thiserror — error enums
chrono, uuid — common types
schemars, validator, regex — schema generation and validation
rmcp — MCP protocol types
axum — optional, with the web feature
systemprompt-traits, systemprompt-identifiers, systemprompt-extension, systemprompt-provider-contracts — shared layer siblings

License

BSL-1.1 (Business Source License). Source-available for evaluation, testing, and non-production use. Production use requires a commercial license. Each version converts to Apache 2.0 four years after publication. See LICENSE.

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systemprompt-models 0.10.1

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