Hmbown/CodeWhale · error · anyhow::Error

unsupported Runtime mode {mode:?}; expected plan, act, or op

Error message

unsupported Runtime mode {mode:?}; expected plan, act, or operate

What it means

RuntimePolicy::from_request rejected the requested Runtime mode string: parse_runtime_mode (including legacy aliases) did not recognize it, so only plan/act/operate (or their accepted aliases) are valid.

Source

Thrown at crates/tui/src/runtime_policy.rs:53

                } else {
                    ApprovalMode::Suggest
                }
            });
        Self {
            mode: visible_mode(parsed_mode),
            permission,
        }
    }

    /// Validate and normalize a new Runtime request. Legacy aliases are
    /// accepted as one-way inputs, but only current values are persisted.
    pub(crate) fn from_request(
        mode: &str,
        permission_posture: Option<&str>,
        auto_approve: Option<bool>,
    ) -> Result<Self> {
        let parsed_mode = parse_runtime_mode(mode).ok_or_else(|| {
            anyhow::anyhow!("unsupported Runtime mode {mode:?}; expected plan, act, or operate")
        })?;
        let permission = match permission_posture {
            Some(value) => ApprovalMode::from_config_value(value).ok_or_else(|| {
                anyhow::anyhow!(
                    "unsupported permission posture {value:?}; expected ask, auto-review, or full-access"
                )
            })?,
            None if parsed_mode == AppMode::Yolo || auto_approve.unwrap_or(false) => {
                ApprovalMode::Bypass
            }
            None => ApprovalMode::Suggest,
        };
        if permission == ApprovalMode::Never {
            bail!("permission posture 'never' is not part of the Runtime product contract");
        }
        Ok(Self {
            mode: visible_mode(parsed_mode),
            permission,

View on GitHub (pinned to 0c42157ee5)

Solutions

1. Use one of plan, act, or operate
2. Check for typos in the mode string sent by the client

When it happens

Trigger: Thrown at crates/tui/src/runtime_policy.rs:53 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of Hmbown/CodeWhale@0c42157ee5 (2026-08-20). Data as JSON: /api/errors/36f7125ec0c45398. Report an issue: GitHub.