Equation 5 · Part 1 · Reliable AI Agents Are Control Systems, Not Chatbots
Symbol h_t
What this part means
retained working state.
Its job in the formula
is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol h_t→Article meaning
Where the article explains it
where is retained working state and g is the task objective.
The passage around this formula
where is retained working state and g is the task objective. A tool translates the proposed action into an environmental transition; the environment returns evidence; and an evaluator determines whether the evidence supports continuing, replanning, escalating, or stopping. The policy may be a frontier model, but the agent is the entire closed loop.
Learn the underlying idea
A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.
Open the illustrated subscripts: which member of a family? guide →
See this notation across published equations →
Sources cited in the article section
- [3] Building effective agents ↗
- [7] ReAct: Synergizing Reasoning and Acting in Language Models ↗
- [8] Toolformer: Language Models Can Teach Themselves to Use Tools ↗
These citations provide research context; check each source for the exact claim it supports.