diff --git a/CHANGELOG.md b/CHANGELOG.md
index 695b773a..06ce3f85 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,11 @@ All notable changes to vouch are documented here. Format follows
   the same tarball. `import_apply`, `import_check`, and `export_check`
   now validate every member path and raise on unsafe names.
 - Fix `vouch search` CLI: assign backend label per code path so substring fallback results are no longer mislabelled as `fts5`; update stale docstring to reflect multi-backend search surface (#52).
+- `vouch crystallize` now indexes its session-summary page into FTS5 so it
+  surfaces from `vouch search` / `kb.search` / `kb.context` without a
+  `vouch index` rebuild. Previously the summary was written via
+  `store.put_page()` only, so on KBs with a populated `state.db` it was
+  silently absent from search results (#60).
 - Bundle export uses POSIX `/` separators in `manifest.json` and tar member
   names on every platform. Previously on Windows the manifest stored
   `sources\<sha>\meta.yaml` while the tarball stored `sources/<sha>/meta.yaml`,
diff --git a/src/vouch/sessions.py b/src/vouch/sessions.py
index 5b4d6354..d27d6334 100644
--- a/src/vouch/sessions.py
+++ b/src/vouch/sessions.py
@@ -12,7 +12,7 @@
 import uuid
 from datetime import UTC, datetime
 
-from . import audit
+from . import audit, index_db
 from .models import Page, PageType, ProposalStatus, Session
 from .proposals import approve
 from .storage import KBStore
@@ -107,6 +107,11 @@ def crystallize(
             ],
         )
         store.put_page(page)
+        with index_db.open_db(store.kb_dir) as conn:
+            index_db.index_page(
+                conn, id=page.id, title=page.title, body=page.body,
+                type=page.type.value, tags=page.tags,
+            )
         summary_page_id = page.id
 
     audit.log_event(
diff --git a/tests/test_sessions.py b/tests/test_sessions.py
index 37f655f2..18a31900 100644
--- a/tests/test_sessions.py
+++ b/tests/test_sessions.py
@@ -7,6 +7,7 @@
 
 import pytest
 
+from vouch import index_db
 from vouch import sessions as sess_mod
 from vouch.proposals import approve, propose_claim
 from vouch.storage import KBStore
@@ -46,6 +47,20 @@ def test_crystallize_skips_already_approved(store: KBStore) -> None:
     assert result["approved"] == []  # already handled
 
 
+def test_crystallize_summary_page_is_fts5_indexed(store: KBStore) -> None:
+    src = store.put_source(b"e")
+    sess = sess_mod.session_start(store, agent="claude-code")
+    propose_claim(store, text="findable claim", evidence=[src.id],
+                  proposed_by="claude-code", session_id=sess.id)
+    sess_mod.session_end(store, sess.id)
+    result = sess_mod.crystallize(store, sess.id, approver="u")
+
+    summary_id = result["summary_page_id"]
+    assert summary_id is not None
+    hits = index_db.search(store.kb_dir, sess.id, limit=10)
+    assert any(kind == "page" and hid == summary_id for kind, hid, _, _ in hits)
+
+
 def test_crystallize_collects_approval_failures(store: KBStore) -> None:
     src = store.put_source(b"e")
     sess = sess_mod.session_start(store, agent="a", task="t")