Greptile Summary

Adds PowerShell/Windows support by introducing skip regexes for PS variable prefixes and Verb-Noun cmdlets, splitting on newlines in addition to ;/&&/||/&, and switching to OPERATOR_ONLY_RE when a heredoc is detected to avoid splitting its body.

• POWERSHELL_SKIP_RE (^[$@&{]) and POWERSHELL_CMDLET_RE (^[A-Z][a-zA-Z]*-[A-Z]) guard PowerShell-specific constructs from being wrapped with snip; [a-zA-Z]* correctly handles mixed-case verb stems like ForEach and ConvertTo.
• HEREDOC_RE detects <<DELIM markers and falls back to OPERATOR_ONLY_RE (no newline splitting) for the whole command, preventing the heredoc body from being fragmented.
• Per-segment pipe handling is extracted into the new snipSegment helper so that pipe detection works correctly for each newline-separated segment independently.

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[toolExecuteBefore] --> B{starts with snip?}
    B -- yes --> Z[return unchanged]
    B -- no --> C{HEREDOC_RE detected?}
    C -- yes --> D[use OPERATOR_ONLY_RE]
    C -- no --> E[use OPERATOR_RE with newlines]
    D --> F[split on separator]
    E --> F
    F --> G{single segment?}
    G -- yes --> H[snipSegment]
    G -- no --> I[map segments]
    I --> J{is operator token?}
    J -- yes --> K[keep as-is]
    J -- no --> H
    H --> L[findFirstPipe]
    L --> M{pipe found?}
    M -- yes --> N[snipCommand firstCmd plus rest]
    M -- no --> O[snipCommand segment]
    N --> P[snipCommand]
    O --> P
    P --> Q{unproxyable cmd?}
    Q -- yes --> Z
    Q -- no --> R{POWERSHELL_SKIP_RE?}
    R -- yes --> Z
    R -- no --> S{POWERSHELL_CMDLET_RE?}
    S -- yes --> Z
    S -- no --> T[prepend snip]

_{Reviews (3): Last reviewed commit: "feat: add Windows/PowerShell support" | Re-trigger Greptile}

Both review findings addressed in the latest force-push (b099f1a):

1. ForEach-Object escapes cmdlet guard — fixed POWERSHELL_CMDLET_RE from /^[A-Z][a-z]+-[A-Z]/ to /^[A-Z][a-zA-Z]*-[A-Z]/ so camelCase verbs (ForEach-Object, ConvertTo-Json, etc.) are correctly skipped. Added 2 tests.
2. @-prefix path lacks test coverage — added 2 tests: @args (splatting) and @("a","b") (array literal).

All 48 tests pass (30 original + 18 new).

Addressed the P1 heredoc finding in the latest push (0177604):

Heredoc commands silently broken by \n split — added HEREDOC_RE (/<<-?\s*['"]?\w/) detection. When the command contains a heredoc marker, newline splitting is disabled and only operator splitting (&&, ||, ;, &) is used. This preserves the heredoc body intact while still splitting on operators.

Also fixed a subtle bug where the .map() separator test used OPERATOR_RE (with newlines) regardless of which regex was used for splitting — now uses the same separator variable for both splitting and testing.

Added 3 heredoc safety tests:

• cat <<EOF\ndata\nEOF — body preserved, command snipped
• cat <<'EOF'\ndata\nEOF — quoted delimiter variant
• cat <<EOF\ndata\nEOF && echo done — operators still split when heredoc present

All 51 tests pass (30 original + 21 new).