The request asks what to use for an agent specification, and no single product is named. The best fits are the open agent-description standards and tools: Agent Schema from Minuet describes agents in a vendor-neutral format 5, the agents.txt standard and validator cover capability discovery at a site root 2, and Agent Manifest Protocol publishes a machine-readable manifest with a CLI and validator 3. GitHub's agent tooling also covers agent-specification work such as AGENTS.md generation [
- 1
Agent Schemaminuet.devwebsite read, tools not yet checked
An open, vendor-neutral schema that defines a machine-verifiable format for AI agent metadata such as identity, capabilities, deployment details and costs.
- 2
Agent Manifest Protocol (AMP)agent-manifest.comwebsite read, tools not yet checked
An open spec with a public registry and validator, where publishers host a /.well-known/agent-manifest.json describing auth, endpoints, pricing and rate limits, and an amp CLI validates it.
official:MCP server · Agent Manifest Protocol (AMP)package · Agent Manifest Protocol (AMP)
- 3
agents.txt Standardagents-txt.comfound in code, not yet checked
A declarative capability discovery standard using /agents.txt and /agents.json at the site root, with actions to get the spec and validate agents.txt and agents.json files.
for agents: get_spec · validate_agents_txt · validate_agents_json
- 4
GitHubgithub.comverified and signed
A developer platform whose agent tooling includes an AGENTS.md generation prompt 11 for writing agent instructions for a repository.
official:CLI · github-mcp-serverskill · add-community-extensionskill · git-commitskill · acquire-codebase-knowledge+2,468 community tools built for it
for agents: typespec-create-agent · create-agentsmd · create-github-action-workflow-specification
- 5
FAFfaf.onefound in code, not yet checked
A persistent AI context standard with a project.faf YAML file and an faf_agents action that imports or writes AGENTS.md from it 7.
for agents: faf_agents · cite · cite
Sources
- 1GitHub · Change is constant. GitHub keeps you ahead. · GitHub · GitHubgithub.com · read 2026-10-29
- 2agents.txt Standardagents-txt.com · read 2026-10-30
- 3Agent Manifest Protocol — Spec, Registry & Validatoragent-manifest.com · read 2026-10-29
- 5Agent Schema · Minuetminuet.dev · read 2026-10-30
- 7FAF The Context Standard for AIfaf.one · read 2026-10-29
- 11typespec-create-agent: declares "typespec-create-agent" (the record we read and signed)unfragile.ai · read 2026-10-24
For agents: the 10 actions behind this answer
typespec-create-agent · typespec-create-agent verified and signed
Generate a complete TypeSpec declarative agent with instructions, capabilities, and conversation starters for Microsoft 365 Copilot
get_spec · agents-txt found in code, not yet checked
Get the agents.txt standard spec (v1.0) from the live site.
· Agent-manifest website read, tools not yet checked
AMP is an open spec plus public registry and validator. Agents discover APIs, read /.well-known/agent-manifest.json at the origin, check compliance, and integrate autonomously.
notion-fetch · Notion verified and signed
Retrieves details about a Notion entity (page, database, or data source) by URL or ID. Provide URL or ID in `id` parameter. Make multiple calls to fetch multiple entities. Pages use enhanced Markdown format. For the complete specification, fetch the MCP resource at `notion://docs/enhanced-markdown-s
· Minuet website read, tools not yet checked
Agent Schema — the open, vendor-neutral standard for describing AI agents and enabling interoperability across ecosystems.
· agentc website read, tools not yet checked
agentc compiles declarative agent manifests into durable, production ready artifacts. Checkpointed graph execution means your agents recover from any failure, automatically, by design.
faf_agents · faf-mcp found in code, not yet checked
Import AGENTS.md (the OpenAI/Codex convention) into project.faf, or write it from project.faf. Returns the merged or written result for the chosen action. Use this to keep a Codex/OpenAI-style AGENTS.md and your .faf in agreement from one source.
Specification · lance-namespace-urllib3-client verified and signed
agent-development · agent-development verified and signed
This skill should be used when the user asks to "create an agent", "add an agent", "write a subagent", "agent frontmatter", "when to use description", "agent examples", "agent tools", "agent colors", "autonomous agent", or needs guidance on agent structure, system prompts, triggering conditions, or
· Playwright website read, tools not yet checked
Web automation and testing for apps, scripts, and AI agents
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.