# Monarchic AI Protocol
This repository defines the shared, versioned protocol for Monarchic AI. It is the compatibility layer between the orchestrator, runner, and agent roles, so the schemas are minimal and stable while allowing forward-compatible extensions.
## Purpose
- Provide versioned JSON Schemas for language-agnostic validation.
- Provide Rust, TypeScript, and Protobuf bindings that mirror the schemas.
- Keep the protocol small and explicit for v1 interoperability.
## Versioning
- Protocol versions live under `schemas/v1/`.
- Each v1 object requires `version: "v1"`.
- New versions must be added under a new directory (e.g. `schemas/v2/`) without changing existing v1 files.
## Protocol v1 schema
Schema files live under `schemas/v1/`:
- `schemas/v1/task.json`
- `schemas/v1/artifact.json`
- `schemas/v1/event.json`
- `schemas/v1/gate_result.json`
- `schemas/v1/run_context.json`
- `schemas/v1/agent_role.json`
- `schemas/v1/schema.json` (index)
- `schemas/v1/monarchic_agent_protocol.proto`
All schemas allow additional properties for forward compatibility.
### AgentRole
Enum values:
- `product_owner`
- `project_manager`
- `dev`
- `qa`
- `reviewer`
- `security`
- `ops`
Example:
```json
{
"role": "reviewer"
}
```
### Task
Represents work assigned to an agent.
Required fields:
- `version`: `"v1"`
- `task_id`: stable identifier
- `role`: `AgentRole`
- `goal`: human-readable objective
Optional fields:
- `inputs`: free-form object
- `constraints`: free-form object
- `gates_required`: list of gate names to run (ex: `["qa", "security"]`)
- `run_context`: `RunContext`
Example:
```json
{
"version": "v1",
"task_id": "task-123",
"role": "dev",
"goal": "Implement protocol types",
"inputs": {
"issue": "https://example.com/issues/42"
},
"constraints": {
"no_network": true
},
"gates_required": ["qa", "security"],
"run_context": {
"version": "v1",
"repo": "monarchic-agent-protocol",
"worktree": "/worktrees/task-123",
"image": "ghcr.io/monarchic/runner:stable",
"runner": "vm-runner-01",
"labels": ["linux", "rust"]
}
}
```
### RunContext
Execution hints for a runner.
Required fields:
- `version`: `"v1"`
- `repo`: repository identifier or URL
- `worktree`: worktree path or identifier
- `image`: VM/container image reference
- `runner`: runner identifier
Optional fields:
- `labels`: list of labels or tags
Example:
```json
{
"version": "v1",
"repo": "monarchic-agent-protocol",
"worktree": "/worktrees/task-123",
"image": "ghcr.io/monarchic/runner:stable",
"runner": "vm-runner-01",
"labels": ["linux", "rust"]
}
```
### Artifact
Outputs produced by an agent or runner.
Required fields:
- `version`: `"v1"`
- `artifact_id`: stable identifier
- `type`: artifact type (ex: `patch`, `log`, `report`)
- `summary`: short description
- `path`: path or locator for the artifact
- `task_id`: task identifier that produced it
Example:
```json
{
"version": "v1",
"artifact_id": "artifact-987",
"type": "patch",
"summary": "Adds v1 protocol schemas",
"path": "artifacts/task-123/patch.diff",
"task_id": "task-123"
}
```
### Event
Lifecycle state updates.
Required fields:
- `version`: `"v1"`
- `event_type`: event category
- `timestamp`: ISO 8601 timestamp
- `task_id`: task identifier
- `status`: state label
Optional fields:
- `message`: human-readable details
Example:
```json
{
"version": "v1",
"event_type": "task_started",
"timestamp": "2025-01-14T15:04:05Z",
"task_id": "task-123",
"status": "running",
"message": "Runner started VM"
}
```
### GateResult
Outcome of QA, review, security, or other gates.
Required fields:
- `version`: `"v1"`
- `gate`: gate name
- `status`: pass/fail or other gate-specific status
Optional fields:
- `reason`: short explanation
- `evidence`: free-form object with supporting data
Example:
```json
{
"version": "v1",
"gate": "security",
"status": "pass",
"reason": "No high or critical findings",
"evidence": {
"scanner": "trivy",
"report_path": "artifacts/task-123/security.json"
}
}
```
## Rust
The crate lives at the repo root in `src/lib.rs`.
```rust
use monarchic_agent_protocol::{AgentRole, Task, PROTOCOL_VERSION};
let task = Task {
version: PROTOCOL_VERSION.to_string(),
task_id: "task-123".to_string(),
role: AgentRole::Dev,
goal: "Implement protocol".to_string(),
inputs: None,
constraints: None,
gates_required: None,
run_context: None,
extensions: Default::default(),
};
```
## TypeScript
TypeScript bindings are in `ts/index.ts`.
```ts
import { Task } from "./ts/index";
const task: Task = {
version: "v1",
task_id: "task-123",
role: "dev",
goal: "Implement protocol",
};
```
## Protobuf
The v1 protobuf schema lives at `schemas/v1/monarchic_agent_protocol.proto`. It mirrors the JSON schema and uses `google.protobuf.Struct` for free-form objects (`inputs`, `constraints`, `evidence`, `extensions`). Additional JSON properties should be stored in the `extensions` field on each message.
Language packages are published per registry. Use the registry package for your language instead of generating local outputs.
## Examples
- Rust: `examples/rust/task.rs`
- TypeScript: `examples/ts/task.ts`
- Protobuf C++: `examples/proto/cpp/task.cpp`
- Protobuf Java: `examples/proto/java/TaskExample.java`
- Protobuf Kotlin: `examples/proto/kotlin/TaskExample.kt`
- Protobuf C#: `examples/proto/csharp/TaskExample.cs`
- Protobuf Python: `examples/proto/python/task.py`
- Protobuf Ruby: `examples/proto/ruby/task.rb`
- Protobuf Objective-C: `examples/proto/objective-c/TaskExample.m`
- Protobuf PHP: `examples/proto/php/task.php`
- Protobuf Dart: `examples/proto/dart/task.dart`
- Protobuf Rust: `examples/proto/rust/task.rs`
## Python (PyPI)
Install the published package and import the generated protobuf bindings:
```python
from monarchic_agent_protocol import monarchic_agent_protocol_pb2 as map_pb2
```
## Validation and tooling
- `nix develop` provides Rust, Node, jq, Python `jsonschema`, and `protoc`.
- `nix flake check` validates JSON schemas, protobuf codegen, and package imports (PyPI + Rust).
- JSON Schema test: `scripts/test-json-schema.sh`.
- Protobuf codegen test (all languages): `scripts/test-proto.sh`.
## Nix packages
- `packages.default`: Rust crate for protocol types
- `packages.rust-lib`: Rust crate for protocol types (explicit)
- `packages.python-lib`: installable Python package (generated during build)
- `packages.pypi-lib`: PyPI package import test artifact
## CI and releases
- `.github/workflows/ci.yml` validates JSON schemas, protobuf codegen, and runs `cargo test`.
- `.github/workflows/release.yml` publishes language packages.
- Python publishing is implemented for PyPI; other language registry steps are scaffolded.