Equation 13 · Part 1 · How Tool Protocols and the Model Context Protocol Actually Work
Symbol pi_θ
What this part means
the model, which is expected — but not forced by anything outside its own training — to emit a call whose name and arguments validate against some tool in .
Its job in the formula
pi_θ 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 pi_θ→Article meaning
Where the article explains it
Here is the tool set most recently returned by tools/list , each member carrying its own schema; is the model, which is expected — but not forced by anything outside its own training — to emit a call whose name and arguments validate against some tool in ; is dispatch through the client to the server and back, exactly as described above; and is the context the model reasons over on the next step, built by appending the call and its result to what came before.
The passage around this formula
Here is the tool set most recently returned by tools/list , each member carrying its own schema; is the model, which is expected — but not forced by anything outside its own training — to emit a call whose name and arguments validate against some tool in ; is dispatch through the client to the server and back, exactly as described above; and …
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.
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Sources cited in the article section
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