Enum Error 

#[non_exhaustive]
pub enum Error {
    Unsigned {
        name: String,
    },
    BadSignature {
        name: String,
    },
    OverPrivileged {
        name: String,
        excess: Vec<CapabilityName>,
    },
    UndeclaredCapability {
        name: String,
        capability: CapabilityName,
    },
    InvalidManifest(String),
    InvalidTrustRoot(String),
    IdentityDrift {
        id: String,
        expected: String,
        found: String,
    },
    UnknownSkill(String),
    AlreadyRegistered(String),
}

All ways a skill can be refused.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Unsigned

The manifest has no signature block. Unsigned skills do not run.

Fields

name: String

The skill name from the manifest.

BadSignature

The signature is present but does not verify. The skill was tampered with after signing, or signed by an untrusted key.

Fields

name: String

The skill name from the manifest.

OverPrivileged

The manifest declares capabilities beyond the user’s grants. Refused at admission — the skill may never claim these.

Fields

name: String

The skill name from the manifest.

excess: Vec<CapabilityName>

The declared capabilities that exceed the user’s grants.

UndeclaredCapability

The skill tried to use a capability it did not declare. Denied at call time — declaration is not enough, every call re-checks the grant.

Fields

name: String

The skill name from the manifest.

capability: CapabilityName

The capability the skill tried to use.

InvalidManifest(String)

The manifest is malformed.

InvalidTrustRoot(String)

The trust root (public key) is malformed or unknown.

IdentityDrift

The skill’s code changed under its pinned identity. The code hash at load/call time doesn’t match the hash pinned at admission. Refused — this is the drift rule.

Fields

id: String

The skill’s registry id.

expected: String

The pinned code hash.

found: String

The hash of the presented code.

UnknownSkill(String)

No skill with this id is registered.

AlreadyRegistered(String)

A skill with this id is already registered. Re-registration is refused — explicit unregister followed by register is the only update path. Silent replacement would let a compromised or confused caller swap a skill’s code without any signal.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.