Add --pick flag to gsd-tools.cjs for extracting a single field from
JSON output, replacing all jq pipe usage across workflow and reference
files. Since Node.js is already a hard dependency, this eliminates the
need for jq on systems where it is not installed (notably Windows).
Changes:
- gsd-tools.cjs: add --pick <field> global flag with dot-notation and
bracket syntax support (e.g., --pick section, --pick directories[-1])
- Replace 15 jq pipe patterns across 6 workflow/reference files with
--pick flag or inline Node.js one-liner for variable extraction
- Add regression tests for --pick flag behavior
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
zsh's built-in echo interprets \n escape sequences in JSON strings,
converting properly-escaped \\n back into literal newlines. This breaks
jq parsing with "control characters U+0000 through U+001F must be escaped".
printf '%s\n' preserves the JSON verbatim.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Claude Code subagents sometimes rewrite ~/. paths to relative paths,
causing MODULE_NOT_FOUND when CWD is the project directory. $HOME is a
shell variable resolved at runtime, immune to model path rewriting.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Projects with "type": "module" in package.json cause Node to treat
gsd-tools.js as ESM, crashing on require(). The .cjs extension forces
CommonJS regardless of the host project's module configuration.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
