### 5.0. Research-Only Modifiers (`--view`, `--research`)

**Skip if:** `RESEARCH_ONLY` is `false`.

Three branches in research-only mode (`--research-phase <N>`):

1. **`--view`**: print `RESEARCH.md` to stdout, no spawn, exit. If `RESEARCH.md` is missing, error with: `--view requires an existing RESEARCH.md; drop --view to spawn the researcher.`
2. **`--research`** (force-refresh): re-spawn researcher unconditionally — fall through to "Spawn gsd-phase-researcher" below.
3. **Neither flag AND `has_research=true`:** auto-use the existing research and exit cleanly — do not prompt, do not re-spawn. Emit `RESEARCH.md already exists for Phase ${PHASE}, using it. To force-refresh, re-invoke with --research; to print, re-invoke with --view. Path: ${research_path}` then exit. The explicit-flag escape hatches cover any deviation; this matches §5.1's promptless auto-use of existing research, removing the §5.0/§5.1 inconsistency (#159).

```bash
if [[ "$VIEW_ONLY" == "true" ]]; then
  [[ -f "$research_path" ]] || { echo "Error: --view requires an existing RESEARCH.md (Phase ${PHASE}). Drop --view to spawn the researcher."; exit 1; }
  cat "$research_path"; exit 0
fi
```