Module patterns 

Command classification patterns for identifying compilation commands.

Implements the 5-tier classification system:

• Tier 0: Instant reject (non-Bash, empty)
• Tier 1: Structure analysis (pipes, redirects, background)
• Tier 2: SIMD keyword filter
• Tier 3: Negative pattern check
• Tier 4: Full classification with confidence

Structs

Classification

Result of command classification.

ClassificationDetails

Detailed classification results with per-tier decisions.

ClassificationTier

Detailed result for a single classification tier.

Enums

CompilationKind

Kind of compilation command detected.

TierDecision

Decision outcome for a classification tier.

Statics

COMPILATION_KEYWORDS

Keywords that indicate a potential compilation command. Used for SIMD-accelerated quick filtering (Tier 2).

NEVER_INTERCEPT

Commands that should NEVER be intercepted, even if they contain compilation keywords. These either modify local state or have dependencies on local execution.

Functions

classify_command

Classify a shell command.

classify_command_detailed

Classify a shell command with detailed tier decisions for diagnostics.

normalize_command

Normalize a command by stripping common wrappers (sudo, time, env, etc.)

split_shell_commands

Split a shell command string on unquoted ;, &&, and || operators.