The A2A Market Needs a Trust Layer
Discovery and payments are arriving. The missing market layer is relationship-level trust.
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Open Weights Move the Trust Boundary
What OpenAI gpt-oss on Hugging Face changes about agent provenance, deployment identity, and oversight.
An Agent Card Is Not a Trust Passport
Agent Cards improve discovery and integrity, but they cannot prove authority, incentives, or safe joint behavior.
Who Does an AI Agent Represent?
How authority, incentives, accountability, and collusion risk change across B2B, B2C, and C2C transactions.
Threat Modeling the A2A Task Lifecycle
Why a valid task can still become unsafe as messages, artifacts, status updates, and counterparties accumulate.
Agent Card Caches Can Outlive Trust
Capability metadata changes slowly, but ownership, keys, endpoints, and risk can change immediately.
Signed Agent Cards Still Need Key Rotation
A valid signature proves integrity under a key; it does not prove that the key is current, independent, or correctly governed.
Agent Registries Will Become Ranking Systems
The registry that helps agents find one another also decides which providers receive visibility, work, and reputation.
Extended Agent Cards Need Selective Disclosure
More metadata can improve trust while simultaneously revealing internal capabilities, topology, and sensitive operations.
Push Notifications Add a Second Trust Channel
Asynchronous task updates can cross time, network, and credential boundaries that differ from the original request path.
