Failed to update setting: invalid permission posture '{value

Error message

Failed to update setting: invalid permission posture '{value}'. Expected: ask, auto-review, or full-access.

What it means

Settings update validation for the permission-posture key: normalize_permission_posture returned None for the value — it is neither ask, auto-review, nor full-access. Posture gates tool authority, so unknown postures are rejected instead of guessed.

Source

Thrown at crates/tui/src/settings.rs:1481

                {
                    self.default_model = None;
                    return Ok(());
                }

                let Some(model) = normalize_default_model(trimmed) else {
                    anyhow::bail!(
                        "Failed to update setting: invalid model '{value}'. Expected: auto, a DeepSeek model ID (for example deepseek-v4-pro, deepseek-v4-flash), or none/default."
                    );
                };
                self.default_model = Some(model);
            }
            "reasoning_effort" | "effort" => {
                self.reasoning_effort = normalize_reasoning_effort_setting(value)?;
            }
            "permission_posture" | "permissions" => {
                self.permission_posture = normalize_permission_posture(value);
                if self.permission_posture.is_none() {
                    anyhow::bail!(
                        "Failed to update setting: invalid permission posture '{value}'. Expected: ask, auto-review, or full-access."
                    );
                }
            }
            "sandbox_mode" | "sandbox" | "filesystem_sandbox" => {
                self.sandbox_mode = normalize_sandbox_mode(value);
                if self.sandbox_mode.is_none() {
                    anyhow::bail!(
                        "Failed to update setting: invalid sandbox_mode '{value}'. Expected: read-only, workspace-write, danger-full-access, or external-sandbox."
                    );
                }
            }
            _ => {
                anyhow::bail!("Failed to update setting: unknown setting '{key}'.");
            }
        }
        Ok(())
    }

View on GitHub (pinned to 0c42157ee5)

Solutions

Set permission posture to ask, auto-review, or full-access

Defensive patterns

Strategy: validation

When it happens

Trigger: Thrown at crates/tui/src/settings.rs:1481 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/08e8f3b2fb8979fa. Report an issue: GitHub.