Module fault 

The agent-facing error contract (ARCHITECTURE.md §2).

Every error stackless emits carries three parts: what failed (the step and instance), why (the observed cause), and how to proceed (a concrete command, flag, or fix). Agents branch on stable codes, never on prose.

Modules

codes

Stable machine-readable error codes.

Structs

ErrorContext

Factual observables agents use to locate and inspect a failure.

Report

The serialized error shape agents consume in --json mode.

Constants

FAILURE_LOG_TAIL_LINES

Lines of captured output included in failure context (hooks, health, prepare). Aligns with stackless logs --tail defaults for operators.

Traits

Fault

Implemented by every error enum in every stackless crate.