diff --git a/goals/G-098-suite-tk-tcllib-critcl.md b/goals/G-098-suite-tk-tcllib-critcl.md
index a5bd89e9..d428c8de 100644
--- a/goals/G-098-suite-tk-tcllib-critcl.md
+++ b/goals/G-098-suite-tk-tcllib-critcl.md
@@ -69,10 +69,24 @@ user direction 2026-07-20:
   3840x2160 depth 32; label pack + update + destroy clean (real window station
   exercised, not just a load).
 
-Remaining for acceptance:
+### 2026-07-20 increment 2: tklib installed via its own installer; tooltip smoke
+
+- Installer behaviour checked (per the user's caveat) before use: NOT a straight copy
+  - module exclusion list (unless +excluded), app-script generation, optional
+  nroff/html doc install, and generation of the aggregating top-level pkgIndex.tcl
+  (gen_main_index sources each module's index - required for package resolution since
+  module indexes sit two levels below auto_path). critcl DSL procs are stubbed to
+  no-ops (pure-tcl confirmed). Batch surface: -no-gui -no-wait with
+  -pkgs/-apps/-html/-nroff/-examples toggles and *-path overrides; default paths
+  derive from the RUNNING tclsh.
+- Driver step: run installer.tcl with the SUITE-BUILT shell, batch, packages only
+  (-no-gui -no-wait -pkgs -no-apps -no-html -no-nroff -no-examples) - defaults land
+  it at out/lib/tklib0.9 with the generated main pkgIndex. Idempotent (skipped when
+  a tklib* install exists).
+- SMOKE PASS: in the suite shell, package require Tk + package require tooltip ->
+  tooltip 2.0.4 (a Tk-dependent tklib package resolving through the aggregate index).
 
-- tklib install via its installer.tcl (behaviour check first) + representative
-  package require evidence.
+Remaining for acceptance:
 - tcllib install via installer.tcl/sak.tcl (behaviour check) + critcl-built tcllibc
   (critcl git clone/pin driving zig cc) + hashing comparison evidence.
 - suite.tcl test gate: parse all.tcl totals vs a recorded expected-failure baseline;
diff --git a/src/buildsuites/suite_tcl90/suite.tcl b/src/buildsuites/suite_tcl90/suite.tcl
index 8e657824..e68dd5fd 100644
--- a/src/buildsuites/suite_tcl90/suite.tcl
+++ b/src/buildsuites/suite_tcl90/suite.tcl
@@ -290,4 +290,21 @@ foreach {label path script} [list \
     log "$label shell: $out"
     if {![string match "$patchlevel*" $out]} {fail "$label shell patchlevel mismatch: got '$out' want '$patchlevel'"}
 }
+#-- tklib install (G-098) --------------------------------------------------
+#tklib is pure-tcl but its installer is NOT a straight copy: module exclusions and
+#generation of the aggregating pkgIndex.tcl (gen_main_index). Run it in batch mode
+#(packages only) with the suite-built shell; default paths derive from that shell,
+#landing the packages under <out>/lib/<tklib-version-dir>.
+if {![llength [glob -nocomplain [file join $stage out lib tklib*]]]} {
+    log "installing tklib (batch, packages only) via its own installer"
+    set savedpwd [pwd]
+    cd [file join $stage tklib]
+    run $exe installer.tcl -no-gui -no-wait -pkgs -no-apps -no-html -no-nroff -no-examples
+    cd $savedpwd
+}
+set tkliblanded [glob -nocomplain [file join $stage out lib tklib*]]
+if {![llength $tkliblanded]} {fail "tklib install did not land under [file join $stage out lib]"}
+set tksmoke [exec $exe << {package require Tk; wm withdraw .; puts "tooltip: [package require tooltip]"; destroy .; exit}]
+log "tklib: [file tail [lindex $tkliblanded 0]] installed; smoke $tksmoke"
+
 log "PASS - built $patchlevel (checkout [string range $uuid 0 11]..., zig $zigv) -> $stage/out"