# Vizier

> Deterministic authorization for proposed AI agent actions, with an authenticated Action Covenant lifecycle and signed authorization and reported-outcome receipts.

## Discovery & Standards
- [ARD (Agent Resource Discovery)](https://vizier.vassiliy-lakhonin.workers.dev/.well-known/ard.json): Machine-readable resource catalog.
- [AI Catalog](https://vizier.vassiliy-lakhonin.workers.dev/.well-known/ai-catalog.json): Canonical AI catalog.
- [A2A Agent Card](https://vizier.vassiliy-lakhonin.workers.dev/.well-known/agent-card.json): Agent-to-Agent discovery card.
- [MCP Server Manifest](https://vizier.vassiliy-lakhonin.workers.dev/.well-known/mcp.json): Model Context Protocol manifest.
- [Glama MCP Verification](https://vizier.vassiliy-lakhonin.workers.dev/.well-known/glama.json): Glama MCP ownership verification manifest.
- [OAuth Protected Resource Metadata (RFC 9728)](https://vizier.vassiliy-lakhonin.workers.dev/.well-known/oauth-protected-resource): RFC 9728 OAuth 2.0 protected resource metadata and authorization discovery.
- [OpenAPI 3.1 Contract](https://vizier.vassiliy-lakhonin.workers.dev/openapi.json): Action Covenant REST API specification.
- [Documentation](https://vizier.vassiliy-lakhonin.workers.dev/docs): Interactive API documentation.

## Protocols
- [MCP Endpoint](https://vizier.vassiliy-lakhonin.workers.dev/mcp): Streamable HTTP endpoint exposing vizier_verify_action.
- [A2A Endpoint](https://vizier.vassiliy-lakhonin.workers.dev/message/send): JSON-RPC 2.0 endpoint for agent covenants.

## Core Capabilities
- [verify-agent-action](https://vizier.vassiliy-lakhonin.workers.dev/docs): deterministic allow/block verdicts before tool execution.
- [activate-action-covenant](https://vizier.vassiliy-lakhonin.workers.dev/docs): bind delegated authority, evidence, and scope to action sessions.
- [record-action-outcome](https://vizier.vassiliy-lakhonin.workers.dev/docs): post-execution receipt binding for audit trails.
- [signed-receipts](https://vizier.vassiliy-lakhonin.workers.dev/docs): ECDSA/Ed25519 compact JWS receipts for cryptographic integrity and verifiable action provenance.