NousResearch/hermes-agent · error · ValueError

acomplete_structured requires at least one input block

Error message

acomplete_structured requires at least one input block

What it means

Error "acomplete_structured requires at least one input block" thrown in NousResearch/hermes-agent.

Source

Thrown at agent/plugin_llm.py:992

        json_schema: Optional[Any] = None,
        json_mode: bool = False,
        schema_name: Optional[str] = None,
        system_prompt: Optional[str] = None,
        provider: Optional[str] = None,
        model: Optional[str] = None,
        temperature: Optional[float] = None,
        max_tokens: Optional[int] = None,
        timeout: Optional[float] = None,
        agent_id: Optional[str] = None,
        profile: Optional[str] = None,
        purpose: Optional[str] = None,
        task: Optional[str] = None,
    ) -> PluginLlmStructuredResult:
        """Async sibling of :meth:`complete_structured`."""
        if not instructions or not instructions.strip():
            raise ValueError("acomplete_structured requires non-empty instructions")
        if not input:
            raise ValueError("acomplete_structured requires at least one input block")

        policy = self._policy_loader(self._plugin_id)
        eff_task = _check_task(policy, plugin_id=self._plugin_id, requested_task=task)
        eff_provider, eff_model, eff_agent, eff_profile = _check_overrides(
            policy,
            requested_provider=provider,
            requested_model=model,
            requested_agent_id=agent_id,
            requested_profile=profile,
        )
        messages = _build_structured_messages(
            instructions=instructions,
            inputs=list(input),
            json_mode=json_mode,
            json_schema=json_schema,
            schema_name=schema_name,
            system_prompt=system_prompt,
        )

View on GitHub (pinned to c896c09c42)

Solutions

1. Pass at least one input block to acomplete_structured.

When it happens

Trigger: Thrown at agent/plugin_llm.py:992 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of NousResearch/hermes-agent@c896c09c42 (2026-08-14). Data as JSON: /api/errors/1dc7c6bdbba59d47. Report an issue: GitHub.