Summary

• Suppress cd stdout in all 18 affected bin/ scripts to prevent CDPATH from corrupting path resolution
• Uses >/dev/null redirect on cd in $(cd ... && pwd) patterns
• Covers all scripts listed in CDPATH breaks all bin/ scripts — cd outputs path to stdout, corrupting variable assignments #824, not just a subset

Root cause

When CDPATH is set (common with zsh users, zoxide, or custom navigation), cd prints the resolved path to stdout. This doubles the output of $(cd ... && pwd), corrupting GSTACK_DIR, SCRIPT_DIR, and REPO_ROOT assignments. Most visibly, gstack-update-check silently exits because VERSION_FILE becomes a two-line string.

Fix

# Before (broken with CDPATH):
GSTACK_DIR="$(cd "$(dirname "$0")/.." && pwd)"

# After (works with any CDPATH):
GSTACK_DIR="$(cd "$(dirname "$0")/.." >/dev/null && pwd)"

All 18 scripts fixed

dev-setup, dev-teardown, gstack-community-dashboard, gstack-extension, gstack-learnings-log, gstack-learnings-search, gstack-platform-detect, gstack-relink, gstack-repo-mode, gstack-review-log, gstack-review-read, gstack-specialist-stats, gstack-telemetry-log, gstack-telemetry-sync, gstack-timeline-log, gstack-timeline-read, gstack-uninstall, gstack-update-check.

Testing

bash -n bin/dev-setup bin/dev-teardown bin/gstack-community-dashboard \
  bin/gstack-extension bin/gstack-learnings-log bin/gstack-learnings-search \
  bin/gstack-platform-detect bin/gstack-relink bin/gstack-repo-mode \
  bin/gstack-review-log bin/gstack-review-read bin/gstack-specialist-stats \
  bin/gstack-telemetry-log bin/gstack-telemetry-sync bin/gstack-timeline-log \
  bin/gstack-timeline-read bin/gstack-uninstall bin/gstack-update-check

All 18 pass syntax check. Fix verified with CDPATH='.:/tmp' set.

Note: PR #836 fixes 7 of 18 scripts. This PR covers all 18.

Fixes #824