The three opt-in bash hooks (gsd-phase-boundary.sh, gsd-session-state.sh,
gsd-validate-commit.sh) shipped with #!/bin/bash, which fails on distros
that don't ship bash at /bin/bash (NixOS, minimal Alpine images, some
container runtimes). POSIX guarantees /bin/sh but not /bin/bash.
This is latent in the default install path because Claude Code wires the
hooks as `bash <path>` from settings.json (PATH-resolved — the script's
own shebang is read as a comment by bash). The fix matters when scripts
are run directly: tests, future installer changes, or manual debugging.
Changes:
- hooks/gsd-{phase-boundary,session-state,validate-commit}.sh: shebang
switched to #!/usr/bin/env bash, matching the convention already used
in scripts/*.sh.
- tests/bug-2136-sh-hook-version.test.cjs: assertion updated to expect
the new shebang; comment updated to spell out the rationale.
- tests/bug-2979-hook-absolute-node.test.cjs: doc-comment updated — the
prior wording cited "POSIX std PATH always has /bin" as the reason
bare `bash` is OK. The actual reason is that bare `bash` is
PATH-resolved, which is portable across distros that don't ship
/bin/bash. POSIX std PATH guarantees /bin/sh, not /bin/bash.
- bin/install.js::buildHookCommand: comment block clarifying the same.
No behavior change in this file — bare `bash` was already correct.
- .changeset/portable-bash-shebang-hooks.md: changeset entry.
Verified locally on NixOS:
- npm run build:hooks: hooks/dist/*.sh shebangs propagate correctly.
- node --test tests/bug-2136-*.cjs tests/bug-2979-*.cjs
tests/bug-1817-*.cjs tests/bug-1834-*.cjs tests/bug-1906-*.cjs
tests/bug-2557-*.cjs tests/bug-3017-*.cjs tests/security-scan.test.cjs
tests/hooks-doc-parity.test.cjs: 126/126 pass.
- node scripts/run-tests.cjs (full suite): 6944 pass / 0 fail / 5 skip.
Changeset Fragments
This directory holds per-PR CHANGELOG fragments. Every PR with user-facing changes drops one (or more) <random-name>.md files here describing its CHANGELOG entry. Fragments are consolidated into the top-level CHANGELOG.md at release time.
Why
Two PRs that both edit the ### Fixed block of CHANGELOG.md always conflict on merge — git can't pick a serialization order without human input. Two PRs that each add a fresh .changeset/<unique-name>.md never conflict because they don't share lines.
See #2975 for the full rationale.
Adding a fragment
node scripts/changeset/new.cjs \
--type Fixed \
--pr 1234 \
--body "fix the thing — explain the user-visible change in one sentence"
This writes .changeset/<adjective>-<noun>-<noun>.md with frontmatter and a body. Three random words → concurrent PRs don't collide.
Format
---
type: Fixed
pr: 1234
---
**`/gsd-foo` no longer drops trailing slashes** — explain the user-visible change.
Allowed type: values follow Keep a Changelog: Added, Changed, Deprecated, Removed, Fixed, Security.
Opting out
PRs that legitimately have no user-facing impact can add the no-changelog label. CI honors it. When unsure, add the fragment.
At release time
node scripts/changeset/cli.cjs render --version vX.Y.Z --date YYYY-MM-DD
Reads every fragment, groups bullets by type:, replaces ## [Unreleased] with a new ## [vX.Y.Z] - YYYY-MM-DD block, opens a fresh ## [Unreleased] above, deletes consumed fragments. Idempotent.