---
title: "Specifications"
canonical: "https://canmyagentuse.com/specs"
contentKind: "page"
locale: "en"
description: "Revision-aware protocol, convention, and package-format references."
llmSummary: "Revision-aware protocol, convention, and package-format references."
publishedAt: null
updatedAt: null
verifiedAt: null
tags: []
---

# Specifications

Revision-aware protocol, convention, and package-format references.

- HTML: https://canmyagentuse.com/specs
- JSON: https://canmyagentuse.com/api/v1/specs.json
- Markdown: https://canmyagentuse.com/specs.md

- [A2UI](/specs/a2ui.md) — A2UI project; revision 0.9.1 stable / 1.0 candidate; mixed
- [AG-UI](/specs/ag-ui.md) — AG-UI community; revision living; open protocol
- [Agent Client Protocol](/specs/acp.md) — ACP / Zed ecosystem; revision living; active
- [Agent Host Protocol](/specs/ahp.md) — Microsoft; revision 0.5.x; preview
- [Agent Plugins](/specs/agent-plugins.md) — Cross-vendor technical steering committee; revision 1.0.0; stable
- [Agent Skills](/specs/agent-skills.md) — Agent Skills maintainers; revision living; open standard
- [Agent2Agent Protocol](/specs/a2a.md) — Linux Foundation project; revision 1.0.x; stable family
- [AGENTS.md](/specs/agents-md.md) — Community convention; revision living; convention
- [MCP Apps](/specs/mcp-apps.md) — MCP project; revision 2026-01-26; stable extension
- [Model Context Protocol](/specs/mcp.md) — MCP project / AAIF ecosystem; revision 2026-07-28; published
- [NLWeb](/specs/nlweb.md) — NLWeb community; revision 0.5 TypeSpec; early
- [WebMCP](/specs/webmcp.md) — W3C Web Machine Learning Community Group; revision 2026-08-26 draft; draft community group report