Enum Decision 

pub enum Decision {
    Deny,
    Ask,
    Allow,
}

The three-way outcome the engine can reach for a tool call. Ordered by strictness for Decision::stricter (Deny strictest, Allow loosest) — NOT by numeric severity in the tier-priority sense (which is a fixed deny→ask→allow scan order, not a totally-ordered scale); the ordering here exists purely to fold multiple sub-command decisions down to “the single worst one wins”, the compound-safety invariant D-3/risk-1 demands.

Variants

Deny

Refuse outright. A hard floor — never bypassed by an approval policy or a cached “approve for session” grant (mirrors Config::tool_deny_patterns’ existing precedent, config.rs).

Ask

Requires approval (interactive prompt, or a non-interactive super::approval::PermissionsApprovalHandler).

Allow

Proceed without prompting.

Implementations

impl Decision

pub fn stricter(self, other: Decision) -> Decision

The stricter (lower-trust) of two decisions: Deny beats Ask beats Allow. Used to fold a compound command’s per-sub-command decisions into one (§5.3 risk 1: “a compound where ANY sub-command matches a deny rule → the whole command is denied” — generalized here to “the whole command is AT LEAST as strict as its strictest sub-command”).

Trait Implementations

impl Clone for Decision

fn clone(&self) -> Decision

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Decision

impl Debug for Decision

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Eq for Decision

impl PartialEq for Decision

fn eq(&self, other: &Decision) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Decision