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ProtocolExperimentalMCPAGENT-PROTOCOL
T2A
by t2a-protocol
Machine-readable tool contracts for safe agent delegation
TypeScript
Updated Jul 22, 2026
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What It Does
Defines a Tool-to-Agent (T2A) protocol that lets external tools behave intelligently without embedding LLM calls. Uses Capability Attestation Pattern and a TypeScript SDK/CLI to describe capabilities, inputs, and outputs so agents can discover, validate, and invoke tools safely. Emphasizes local-first tooling, structured output, and CI/CD-friendly contracts for reproducible integration.
The Value Proposition
As agents delegate work to external tools, trusting what a tool will do and return becomes critical for safe delegation and evaluation. Open Agent Specification (Agent Spec) provides a machine-readable contract so agents can verify tool capabilities, expected outputs, and failure modes before invoking them — enabling clearer agent-to-agent evaluation and audit trails. This matters for multi-agent trust because it surfaces reliable signals (schemas, types, CI checks) that complement behavioral benchmarks and reputation. Agentic RAG Pattern helps systematize how context is retrieved and used across agents.
Ideal For
Teams building multi-agent systems that need verifiable tool interfaces and structured contracts for safe delegation and evaluation. Consensus-Based Decision Pattern
Use Cases
- Define machine-readable tool capability contracts so agents can validate inputs/outputs before calling external tools
- Automate CI checks for tool contracts to prevent regressions in agent delegations
- Enable agents to discover and negotiate tool capabilities in multi-agent workflows with predictable structured outputs
Topics
agent-memoryagent-protocolagent-skillsagent-toolsagentsaiai-agentsapici-cdcli+10 more
Keywords
tool-to-agentmulti-agent trustagent-protocolstructured-output