Unverified50% confidenceOpinionExact time
Jediah lists three categories of harness components that models cannot absorb: infrastructure and runtime (agent tasks extending to hours or days require moving to the cloud), trust and safety (narrowing permissions and guardrails to prevent catastrophic operations or large API bills), and efficiency (studies all find significant differences in cost per task).
1
Sources
50%
Confidence
Long-term
Relevance
10/21/2026
First Seen
Sources
Is the Agent Framework Dead? A Cursor Engineer Counters with Data
bilibili枫叶边城10/20/2026
Related Entities
Related Claims
UnverifiedJediah splits the harness into the runtime layer (controlling where the agent runs, loop execution, state storage to support task recovery) and the context and orchestration layer (deciding when to call which model and what context the model sees, including prompts, tools, memory, compaction and other mechanisms).75% similarUnverifiedJediah proposed the concept of a "data flywheel": the harness makes increasingly difficult coding tasks accessible, more users use agents to attempt these tasks, more coding data is shared with the labs, and once models natively learn these skills, the harness can delete what was originally added to make the tasks work.68% similarUnverifiedDedicated agents are more stable and controllable on specific tasks but have poor scalability, while general-purpose architectures can support multiple vastly different capabilities through the same mechanism but face the risk of task drift.62% similarUnverifiedThe value of cloud-based agents lies in persistence, parallelism, and isolation — tasks keep running when the laptop is shut down, multiple tasks advance simultaneously, and each task's permissions are isolated from one another60% similarUnverifiedGuardrail measures include: setting a daily hard budget based on request count or token count for each Agent, with a hard stop rather than just an alert when triggered; limiting the routes available to each Agent, so that background tasks cannot escalate themselves to the most expensive model; and not using pay-as-you-go keys as a silent fallback, but rather falling back to another free or fixed route when a free route fails, or failing explicitly.59% similar
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