HKUDS/nanobot · error · ValueError

group_message_buffer_size must be > 0

Error message

group_message_buffer_size must be > 0

What it means

Error "group_message_buffer_size must be > 0" thrown in HKUDS/nanobot.

Source

Thrown at nanobot/channels/signal/runtime.py:339

    enabled: bool = False
    phone_number: str = ""  # Your Signal phone number (e.g., "+1234567890")
    daemon_host: str = "localhost"
    daemon_port: int = 8080
    group_message_buffer_size: int = 20  # Number of recent group messages to keep for context
    # Override the directory signal-cli writes inbound attachments to. When
    # None, defaults to ~/.local/share/signal-cli/attachments (the daemon's
    # platform default on Linux). Set this if the daemon is running with a
    # custom XDG_DATA_HOME or on macOS/Windows where the default path differs.
    attachments_dir: str | None = None
    dm: SignalDMConfig = Field(default_factory=SignalDMConfig)
    group: SignalGroupConfig = Field(default_factory=SignalGroupConfig)

    @field_validator("group_message_buffer_size")
    @classmethod
    def _validate_buffer_size(cls, v: int) -> int:
        if v <= 0:
            raise ValueError("group_message_buffer_size must be > 0")
        return v

    @computed_field  # type: ignore[prop-decorator]
    @property
    def allow_from(self) -> list[str]:
        """Aggregate allowlist for the base-class is_allowed() check.

        Returns the union of dm.allow_from and group.allow_from so the base
        channel gate sees a populated list when either sub-policy is configured.
        A ``"*"`` wildcard in either sub-list propagates to allow all.
        """
        return list(dict.fromkeys(self.dm.allow_from + self.group.allow_from))


class SignalChannel(BaseChannel):
    """
    Signal channel using signal-cli daemon via HTTP JSON-RPC interface.

View on GitHub (pinned to 42f37dc4c0)

When it happens

Trigger: Thrown at nanobot/channels/signal/runtime.py:339 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of HKUDS/nanobot@42f37dc4c0 (2026-08-26). Data as JSON: /api/errors/08d97a3d750d3fa0. Report an issue: GitHub.