chatomon.atom ¶

def validate(self) -> None:
    """Check that the orbital chains are consistent.

    Every orbital says whether it calls a model. A name identifies one orbital
    instance: the same instance may appear once in each chain, two different
    instances may not share a name. Every name in
    `reads` must be an orbital placed earlier in the same chain or, for the
    output chain, an input orbital. Every orbital must support the side of the
    chain it is in.

    Raises:
        ChatomonConfigError: If a rule is violated; the message says what to fix.
    """
    by_name: dict[str, Orbital] = {}
    for orb in (*self.input_orbitals, *self.output_orbitals):
        # A class that never calls Orbital.__init__ was not checked when it was created.
        if not isinstance(getattr(orb, "calls_model", None), bool):
            raise ChatomonConfigError(undeclared(type(orb)))
        if by_name.setdefault(orb.name, orb) is not orb:
            raise ChatomonConfigError(
                f"two different orbitals are named {orb.name!r}; give each a unique name="
            )
    input_names = {orb.name for orb in self.input_orbitals}
    chains: tuple[tuple[str, Side, tuple[Orbital, ...]], ...] = (
        ("input_orbitals", "input", self.input_orbitals),
        ("output_orbitals", "output", self.output_orbitals),
    )
    for chain_name, side, chain in chains:
        seen: set[str] = set()
        for orb in chain:
            if orb.name in seen:
                raise ChatomonConfigError(f"orbital {orb.name!r} appears twice in {chain_name}")
            if side not in orb.sides:
                raise ChatomonConfigError(
                    f"{type(orb).__name__} {orb.name!r} cannot run on the {side} side; "
                    f"it supports: {sorted(orb.sides)}"
                )
            available = seen | input_names if side == "output" else seen
            for read in orb.reads:
                if read == orb.name:
                    raise ChatomonConfigError(
                        f"orbital {orb.name!r} cannot read its own annotations"
                    )
                if read not in available:
                    where = f"before it in {chain_name}"
                    if side == "output":
                        where += " or in input_orbitals"
                    raise ChatomonConfigError(
                        f"orbital {orb.name!r} reads {read!r}, which must be an orbital "
                        f"placed {where}"
                    )
            seen.add(orb.name)

def create_engine(self) -> Engine:
    """Create the engine that runs this atom's orbitals.

    Returns:
        A new engine configured from the atom.
    """
    return Engine(
        atom_name=self.name,
        input_orbitals=self.input_orbitals,
        output_orbitals=self.output_orbitals,
        refusal=self.refusal,
        blocked_guidance=self.blocked_guidance,
        max_retries=self.max_retries,
        on_turn=self.on_turn,
        content=self.content_policy,
        tracer=get_tracer(self.tracer_provider),
    )

def build(self) -> AgentT:
    """Validate the atom, bind its orbitals and build the native agent.

    Returns:
        The native agent produced by the connector.

    Raises:
        ChatomonConfigError: If the configuration is invalid.
    """  # noqa: DOC502 - raised by validate()
    self.validate()
    bound: set[int] = set()
    for orb in (*self.input_orbitals, *self.output_orbitals):
        if id(orb) not in bound:
            orb.bind(self.connector)
            bound.add(id(orb))
    return self.connector.build(self, self.create_engine())