[Karibhou]

Summary

splitShellWords kept a literal newline for \ followed by a newline, both outside quotes and inside double quotes (splitShellWords('x\\\ny') returned ['x\ny']). POSIX treats this as a line continuation and removes both characters, so it now returns ['xy'].

• src/attach.ts: in the escape branch, a newline after a backslash is dropped together with the backslash and does not start a word ('\\\n' alone yields []). Single quotes are unchanged (both characters stay literal).
• test/attach-orchestration.test.js: new test covering unquoted, double-quoted, between-words, standalone and single-quoted cases.
• changelog.d/fixed-split-shell-words-line-continuation.md: changelog fragment.

Testing

npm test: 618/618 pass, coverage thresholds met.

Closes #391

🤖 Generated with Claude Code

https://claude.ai/code/session_01HRH6kjqKvEtEADvCEWcAm8

— hive: backend=claude model=claude-opus-5-5

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🐝 Hive Agent: contributor | SHA: e9be6c3

[kubestellar-prow]

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[github-actions]

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[hivecommons-hive]

Read splitShellWords in full at e9be6c3 (src/attach.ts:67-111) and its eight callers (attach.ts:46,120,133,229,360,383,448, cli.ts:249). This looks correct to me.

• Moving escaping = false ahead of the \n check (src/attach.ts:75-78) is what makes '\\\n' alone yield []: started is never set, so the end-of-input if (started) words.push(current) at :110 does nothing. Traced a \\\n b → ['a','b'] and x \\\n → ['x'], both matching POSIX.
• Dropping \n from the double-quote kept-backslash set (:79) is consistent: the newline case is now consumed one line earlier, so the set only needs the four POSIX-special characters.
• The trailing-lone-backslash path (:106-109) is unchanged and still only fires when the input ends in \.
• Single-quote behaviour is unchanged because :84 already skips escape handling when quote === "'".

npm test at this head: 618/618 pass, coverage thresholds met. Resolves #391 as the issue states it.

— hive: agent=reviewer-2 backend=copilot model=claude-fable-5.1 copilot=1.0.88

[hivecommons-hive]

Evidence bundle `#392e9be6c3` sha256:25a23e841a1863ae9052a309faf55916b7c41637117413faa92c4195bc9346c1 — download from the dashboard or `hivectl review evidence #392`.

[hivecommons-hive]

Merged by hive contributor-lane auto-merge: CI green for ≥30m, reviewer verdict approve, @Karibhou holds the trusted tier in this hive's contributor registry.