Bash 5.3 has a regression where heredoc variable expansion blocks when
content exceeds ~512 bytes. The session_context variable is ~4,500 bytes,
causing the SessionStart hook to hang indefinitely on macOS with Homebrew
bash 5.3+. Replace cat <<EOF with printf.
Tested on Linux (bash 5.2) and Windows (Git Bash 5.2). The hang only
affects 5.3+ but printf works correctly on all versions.
Based on #572, closes#572. Fixes#571.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace ${BASH_SOURCE[0]:-$0} with $0 in hooks/session-start and the
polyglot-hooks docs example. BASH_SOURCE uses bash array syntax that
causes 'Bad substitution' on systems where /bin/sh is dash (Ubuntu).
Since session-start is always executed (never sourced), $0 and
BASH_SOURCE give the same result. Tested on Linux (bash + dash) and
Windows (Git Bash via CMD and direct).
Based on #553, closes#553.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace #!/bin/bash with #!/usr/bin/env bash in 13 scripts. The
hardcoded path fails on NixOS, FreeBSD, and macOS with Homebrew bash.
#!/usr/bin/env bash is the portable POSIX-friendly alternative.
Tested on Linux and Windows (Git Bash + CMD). macOS is the primary
beneficiary since Homebrew installs bash to /opt/homebrew/bin/bash.
Based on #700, closes#700.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Windows/Git Bash reaps nohup background processes, causing the brainstorm
server to die silently after launch. Auto-detect Windows via OSTYPE
(msys/cygwin/mingw) and MSYSTEM env vars, switching to foreground mode
automatically. Tested on Windows 11 from CMD, PowerShell, and Git Bash —
all route through Git Bash and hit the same issue.
Based on #740, fixes#737. Also adds CHANGELOG.md documenting the fix and
a known OWNER_PID/WINPID mismatch on the main branch.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Resumed sessions already have injected context in their conversation
history. Re-firing the hook was redundant and could cause issues.
The hook now fires only on startup, clear, and compact.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
