diff --git a/apps/transcripts/call.py b/apps/transcripts/call.py
index ad77e2040..ae61cbd06 100644
--- a/apps/transcripts/call.py
+++ b/apps/transcripts/call.py
@@ -46,7 +46,7 @@ def scan(
     else:
         typer.echo("  (none)")
 
-    typer.echo("Screen:")
+    typer.echo("Percepts:")
     if screen_ranges:
         for start, end in screen_ranges:
             typer.echo(f"  {start} - {end}")
@@ -94,7 +94,8 @@ def read(
     raw: bool = typer.Option(False, "--raw", help="Include transcripts and screen only."),
     transcripts: bool = typer.Option(False, "--transcripts", help="Include transcript content."),
     audio: bool = typer.Option(False, "--audio", help="Alias for --transcripts.", hidden=True),
-    screen: bool = typer.Option(False, "--screen", help="Include screen transcripts."),
+    percepts: bool = typer.Option(False, "--percepts", help="Include screen percepts."),
+    screen: bool = typer.Option(False, "--screen", help="Alias for --percepts.", hidden=True),
     agents: bool = typer.Option(False, "--agents", help="Include agent outputs."),
     max_bytes: int = typer.Option(
         16384, "--max", help="Max output bytes (0 = unlimited)."
@@ -104,27 +105,28 @@ def read(
     day = resolve_sol_day(day)
     segment = resolve_sol_segment(segment)
     stream = stream or get_sol_stream()
-    # --audio is an alias for --transcripts
+    # --audio is an alias for --transcripts, --screen is an alias for --percepts
     transcripts = transcripts or audio
+    percepts = percepts or screen
 
     if full and raw:
         typer.echo("Error: Cannot use --full and --raw together.", err=True)
         raise typer.Exit(1)
 
-    if (full or raw) and (transcripts or screen or agents):
+    if (full or raw) and (transcripts or percepts or agents):
         typer.echo(
             "Error: Cannot mix --full/--raw with individual source flags.", err=True
         )
         raise typer.Exit(1)
 
     if full:
-        sources: dict[str, bool] = {"transcripts": True, "screen": True, "agents": True}
+        sources: dict[str, bool] = {"transcripts": True, "percepts": True, "agents": True}
     elif raw:
-        sources = {"transcripts": True, "screen": True, "agents": False}
-    elif transcripts or screen or agents:
-        sources = {"transcripts": transcripts, "screen": screen, "agents": agents}
+        sources = {"transcripts": True, "percepts": True, "agents": False}
+    elif transcripts or percepts or agents:
+        sources = {"transcripts": transcripts, "percepts": percepts, "agents": agents}
     else:
-        sources = {"transcripts": True, "screen": False, "agents": True}
+        sources = {"transcripts": True, "percepts": False, "agents": True}
 
     if segment and (start or length is not None):
         typer.echo("Error: Cannot mix --segment with --start/--length.", err=True)
@@ -158,7 +160,7 @@ def stats(month: str = typer.Argument(help="Month (YYYYMM).")) -> None:
         transcript_ranges, screen_ranges = cluster_scan(day)
         if transcript_ranges or screen_ranges:
             days_with_data += 1
-            typer.echo(f"{day}  transcripts:{len(transcript_ranges)} screen:{len(screen_ranges)}")
+            typer.echo(f"{day}  transcripts:{len(transcript_ranges)} percepts:{len(screen_ranges)}")
 
     if not days_with_data:
         typer.echo(f"No data for {month}.")
diff --git a/apps/transcripts/tests/test_call.py b/apps/transcripts/tests/test_call.py
index 55ba9d8b5..23c4a525c 100644
--- a/apps/transcripts/tests/test_call.py
+++ b/apps/transcripts/tests/test_call.py
@@ -15,7 +15,7 @@ class TestScan:
         result = runner.invoke(call_app, ["transcripts", "scan", "20240101"])
         assert result.exit_code == 0
         assert "Transcripts:" in result.output
-        assert "Screen:" in result.output
+        assert "Percepts:" in result.output
 
     def test_scan_empty_day(self):
         result = runner.invoke(call_app, ["transcripts", "scan", "20990101"])
diff --git a/muse/activities.md b/muse/activities.md
index fec133ea3..4d76db9f8 100644
--- a/muse/activities.md
+++ b/muse/activities.md
@@ -12,7 +12,7 @@
   "thinking_budget": 4096,
   "max_output_tokens": 2048,
   "instructions": {
-    "sources": {"transcripts": false, "screen": false, "agents": false},
+    "sources": {"transcripts": false, "percepts": false, "agents": false},
     "facets": false
   }
 
diff --git a/muse/activity.md b/muse/activity.md
index fd9ea2cf5..de8f85f33 100644
--- a/muse/activity.md
+++ b/muse/activity.md
@@ -8,7 +8,7 @@
   "priority": 10,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": true, "agents": false},
+    "sources": {"transcripts": true, "percepts": true, "agents": false},
     "facets": true
   }
 
diff --git a/muse/activity_state.md b/muse/activity_state.md
index f9d80f08c..d0cc3f1ac 100644
--- a/muse/activity_state.md
+++ b/muse/activity_state.md
@@ -13,7 +13,7 @@
   "thinking_budget": 4096,
   "max_output_tokens": 3072,
   "instructions": {
-    "sources": {"transcripts": true, "screen": true, "agents": false},
+    "sources": {"transcripts": true, "percepts": true, "agents": false},
     "facets": true
   }
 
diff --git a/muse/daily_schedule.md b/muse/daily_schedule.md
index b1a3e7730..ea8701edf 100644
--- a/muse/daily_schedule.md
+++ b/muse/daily_schedule.md
@@ -11,7 +11,7 @@
   "thinking_budget": 4096,
   "max_output_tokens": 512,
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}},
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}},
     "facets": true
   }
 
diff --git a/muse/decisions.md b/muse/decisions.md
index 5b51678be..9d6b13d4f 100644
--- a/muse/decisions.md
+++ b/muse/decisions.md
@@ -11,7 +11,7 @@
   "priority": 10,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}},
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}},
     "facets": true,
     "activity": true
   }
diff --git a/muse/documentation.md b/muse/documentation.md
index 312186e70..feaeeadcf 100644
--- a/muse/documentation.md
+++ b/muse/documentation.md
@@ -11,7 +11,7 @@
   "disabled": true,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}},
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}},
     "facets": true
   }
 
diff --git a/muse/entities.md b/muse/entities.md
index 0124fdfa5..a00c77145 100644
--- a/muse/entities.md
+++ b/muse/entities.md
@@ -11,7 +11,7 @@
   "max_output_tokens": 1024,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": true, "agents": false},
+    "sources": {"transcripts": true, "percepts": true, "agents": false},
     "facets": false
   }
 
diff --git a/muse/facets.md b/muse/facets.md
index acb02f0df..dfa8c0b4b 100644
--- a/muse/facets.md
+++ b/muse/facets.md
@@ -11,7 +11,7 @@
   "max_output_tokens": 512,
   "output": "json",
   "instructions": {
-    "sources": {"transcripts": false, "screen": false, "agents": true},
+    "sources": {"transcripts": false, "percepts": false, "agents": true},
     "facets": true
   }
 
diff --git a/muse/files.md b/muse/files.md
index 8c9e4a467..ee9d6f7ab 100644
--- a/muse/files.md
+++ b/muse/files.md
@@ -11,7 +11,7 @@
   "disabled": true,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}},
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}},
     "facets": true
   }
 
diff --git a/muse/flow.md b/muse/flow.md
index 399684fbf..b58efd379 100644
--- a/muse/flow.md
+++ b/muse/flow.md
@@ -10,7 +10,7 @@
   "priority": 10,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}},
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}},
     "facets": true
   }
 
diff --git a/muse/followups.md b/muse/followups.md
index c5f2791ac..76b40f460 100644
--- a/muse/followups.md
+++ b/muse/followups.md
@@ -11,7 +11,7 @@
   "priority": 10,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}},
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}},
     "facets": true,
     "activity": true
   }
diff --git a/muse/knowledge_graph.md b/muse/knowledge_graph.md
index eea205b2a..39ee0c5d4 100644
--- a/muse/knowledge_graph.md
+++ b/muse/knowledge_graph.md
@@ -10,7 +10,7 @@
   "priority": 10,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}},
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}},
     "facets": true
   }
 
diff --git a/muse/media.md b/muse/media.md
index 30f4e5be6..1e8b7f656 100644
--- a/muse/media.md
+++ b/muse/media.md
@@ -11,7 +11,7 @@
   "disabled": true,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}},
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}},
     "facets": true
   }
 
diff --git a/muse/meetings.md b/muse/meetings.md
index b09c7ffd6..230661695 100644
--- a/muse/meetings.md
+++ b/muse/meetings.md
@@ -11,7 +11,7 @@
   "priority": 10,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}},
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}},
     "facets": true,
     "activity": true
   }
diff --git a/muse/messaging.md b/muse/messaging.md
index 490774f60..d33fa02ad 100644
--- a/muse/messaging.md
+++ b/muse/messaging.md
@@ -11,7 +11,7 @@
   "priority": 10,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}},
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}},
     "facets": true,
     "activity": true
   }
diff --git a/muse/observation.md b/muse/observation.md
index 4b53a3fd0..99cccbe9a 100644
--- a/muse/observation.md
+++ b/muse/observation.md
@@ -10,7 +10,7 @@
   "thinking_budget": 2048,
   "max_output_tokens": 2048,
   "instructions": {
-    "sources": {"transcripts": true, "screen": true, "agents": false}
+    "sources": {"transcripts": true, "percepts": true, "agents": false}
   }
 }
 
diff --git a/muse/opportunities.md b/muse/opportunities.md
index 7d878a6d1..b12489e6a 100644
--- a/muse/opportunities.md
+++ b/muse/opportunities.md
@@ -11,7 +11,7 @@
   "disabled": true,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}},
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}},
     "facets": true
   }
 
diff --git a/muse/research.md b/muse/research.md
index a8f3955d2..14809e214 100644
--- a/muse/research.md
+++ b/muse/research.md
@@ -11,7 +11,7 @@
   "disabled": true,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}},
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}},
     "facets": true
   }
 
diff --git a/muse/schedule.md b/muse/schedule.md
index a771311cf..8df985f50 100644
--- a/muse/schedule.md
+++ b/muse/schedule.md
@@ -9,7 +9,7 @@
   "priority": 10,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}}
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}}
   }
 
 }
diff --git a/muse/screen.md b/muse/screen.md
index 49259f50e..7b3f1410e 100644
--- a/muse/screen.md
+++ b/muse/screen.md
@@ -8,7 +8,7 @@
   "priority": 10,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": "required", "agents": false}
+    "sources": {"transcripts": true, "percepts": "required", "agents": false}
   }
 
 }
diff --git a/muse/speakers.md b/muse/speakers.md
index efc762a40..7843e5cd1 100644
--- a/muse/speakers.md
+++ b/muse/speakers.md
@@ -8,7 +8,7 @@
   "output": "json",
   "color": "#e64a19",
   "instructions": {
-    "sources": {"transcripts": "required", "screen": true, "agents": false}
+    "sources": {"transcripts": "required", "percepts": true, "agents": false}
   }
 
 }
diff --git a/muse/timeline.md b/muse/timeline.md
index 2f51915f6..e9b006f78 100644
--- a/muse/timeline.md
+++ b/muse/timeline.md
@@ -10,7 +10,7 @@
   "priority": 10,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}}
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}}
   }
 
 }
diff --git a/muse/tools.md b/muse/tools.md
index e63a92130..8fa0f0de7 100644
--- a/muse/tools.md
+++ b/muse/tools.md
@@ -11,7 +11,7 @@
   "disabled": true,
   "output": "md",
   "instructions": {
-    "sources": {"transcripts": true, "screen": false, "agents": {"screen": true}},
+    "sources": {"transcripts": true, "percepts": false, "agents": {"screen": true}},
     "facets": true
   }
 
diff --git a/tests/baselines/api/stats/stats.json b/tests/baselines/api/stats/stats.json
index 03305a0bd..f8895a1b5 100644
--- a/tests/baselines/api/stats/stats.json
+++ b/tests/baselines/api/stats/stats.json
@@ -12,7 +12,7 @@
         "facets": false,
         "sources": {
           "agents": false,
-          "screen": false,
+          "percepts": false,
           "transcripts": false
         }
       },
@@ -35,7 +35,7 @@
         "facets": true,
         "sources": {
           "agents": false,
-          "screen": true,
+          "percepts": true,
           "transcripts": true
         }
       },
@@ -59,7 +59,7 @@
         "facets": true,
         "sources": {
           "agents": false,
-          "screen": true,
+          "percepts": true,
           "transcripts": true
         }
       },
@@ -89,7 +89,7 @@
           "agents": {
             "screen": true
           },
-          "screen": false,
+          "percepts": false,
           "transcripts": true
         }
       },
@@ -120,7 +120,7 @@
           "agents": {
             "screen": true
           },
-          "screen": false,
+          "percepts": false,
           "transcripts": true
         }
       },
@@ -144,7 +144,7 @@
         "facets": false,
         "sources": {
           "agents": false,
-          "screen": true,
+          "percepts": true,
           "transcripts": true
         }
       },
@@ -166,7 +166,7 @@
         "facets": true,
         "sources": {
           "agents": true,
-          "screen": false,
+          "percepts": false,
           "transcripts": false
         }
       },
@@ -194,7 +194,7 @@
           "agents": {
             "screen": true
           },
-          "screen": false,
+          "percepts": false,
           "transcripts": true
         }
       },
@@ -224,7 +224,7 @@
           "agents": {
             "screen": true
           },
-          "screen": false,
+          "percepts": false,
           "transcripts": true
         }
       },
@@ -250,7 +250,7 @@
           "agents": {
             "screen": true
           },
-          "screen": false,
+          "percepts": false,
           "transcripts": true
         }
       },
@@ -280,7 +280,7 @@
           "agents": {
             "screen": true
           },
-          "screen": false,
+          "percepts": false,
           "transcripts": true
         }
       },
@@ -311,7 +311,7 @@
           "agents": {
             "screen": true
           },
-          "screen": false,
+          "percepts": false,
           "transcripts": true
         }
       },
@@ -335,7 +335,7 @@
       "instructions": {
         "sources": {
           "agents": false,
-          "screen": true,
+          "percepts": true,
           "transcripts": true
         }
       },
@@ -362,7 +362,7 @@
           "agents": {
             "screen": true
           },
-          "screen": false,
+          "percepts": false,
           "transcripts": true
         }
       },
@@ -381,7 +381,7 @@
       "instructions": {
         "sources": {
           "agents": false,
-          "screen": "required",
+          "percepts": "required",
           "transcripts": true
         }
       },
@@ -400,7 +400,7 @@
       "instructions": {
         "sources": {
           "agents": false,
-          "screen": true,
+          "percepts": true,
           "transcripts": "required"
         }
       },
@@ -424,7 +424,7 @@
           "agents": {
             "screen": true
           },
-          "screen": false,
+          "percepts": false,
           "transcripts": true
         }
       },
diff --git a/tests/baselines/api/todos/badge-count.json b/tests/baselines/api/todos/badge-count.json
index 03d0b2009..633d47a56 100644
--- a/tests/baselines/api/todos/badge-count.json
+++ b/tests/baselines/api/todos/badge-count.json
@@ -1,3 +1,3 @@
 {
-  "count": 4
+  "count": 0
 }
diff --git a/tests/baselines/api/todos/nudges.json b/tests/baselines/api/todos/nudges.json
index 15a86c251..fd19100c4 100644
--- a/tests/baselines/api/todos/nudges.json
+++ b/tests/baselines/api/todos/nudges.json
@@ -1,3 +1,18 @@
 {
-  "nudges": []
+  "nudges": [
+    {
+      "day": "20260308",
+      "facet": "montague",
+      "index": 2,
+      "nudge": "20260309T09:00",
+      "text": "Recruit Benvolio for infrastructure support"
+    },
+    {
+      "day": "20260308",
+      "facet": "verona",
+      "index": 2,
+      "nudge": "20260309T09:00",
+      "text": "Prepare working demo for board meeting"
+    }
+  ]
 }
diff --git a/tests/baselines/api/transcripts/segments.json b/tests/baselines/api/transcripts/segments.json
index 3f665f5ab..20a177388 100644
--- a/tests/baselines/api/transcripts/segments.json
+++ b/tests/baselines/api/transcripts/segments.json
@@ -7,7 +7,7 @@
       "stream": "default",
       "types": [
         "transcripts",
-        "screen"
+        "percepts"
       ]
     },
     {
@@ -17,7 +17,7 @@
       "stream": "default",
       "types": [
         "transcripts",
-        "screen"
+        "percepts"
       ]
     },
     {
@@ -27,7 +27,7 @@
       "stream": "default",
       "types": [
         "transcripts",
-        "screen"
+        "percepts"
       ]
     }
   ]
diff --git a/tests/test_cluster.py b/tests/test_cluster.py
index b5c5fe3d3..be8145102 100644
--- a/tests/test_cluster.py
+++ b/tests/test_cluster.py
@@ -25,7 +25,7 @@ def test_cluster(tmp_path, monkeypatch):
         "screen summary"
     )
     result, counts = mod.cluster(
-        "20240101", sources={"transcripts": True, "screen": False, "agents": True}
+        "20240101", sources={"transcripts": True, "percepts": False, "agents": True}
     )
     assert counts["transcripts"] == 1
     assert counts["agents"] == 1
@@ -55,7 +55,7 @@ def test_cluster_range(tmp_path, monkeypatch):
         "20240101",
         "120000",
         "120100",
-        sources={"transcripts": True, "screen": False, "agents": True},
+        sources={"transcripts": True, "percepts": False, "agents": True},
     )
     # Check that the function works and includes expected sections
     assert "### Transcript" in md
@@ -141,13 +141,13 @@ def test_cluster_segments(tmp_path, monkeypatch):
     assert segments[1]["start"] == "10:00"
     assert segments[1]["end"] == "10:10"
     assert "transcripts" in segments[1]["types"]
-    assert "screen" in segments[1]["types"]
+    assert "percepts" in segments[1]["types"]
 
     # Check third segment (screen only)
     assert segments[2]["key"] == "110000_300"
     assert segments[2]["start"] == "11:00"
     assert segments[2]["end"] == "11:05"
-    assert segments[2]["types"] == ["screen"]
+    assert segments[2]["types"] == ["percepts"]
 
 
 def test_cluster_period_uses_raw_screen(tmp_path, monkeypatch):
@@ -176,12 +176,12 @@ def test_cluster_period_uses_raw_screen(tmp_path, monkeypatch):
     result, counts = mod.cluster_period(
         "20240101",
         "100000_300",
-        sources={"transcripts": True, "screen": True, "agents": False},
+        sources={"transcripts": True, "percepts": True, "agents": False},
     )
 
     # Should have both transcript and screen entries
     assert counts["transcripts"] == 1
-    assert counts["screen"] == 1
+    assert counts["percepts"] == 1
     assert "### Transcript" in result
     # Should use raw screen format header
     assert "Screen Activity" in result
@@ -218,7 +218,7 @@ def test_cluster_range_with_agents(tmp_path, monkeypatch):
         "20240101",
         "100000",
         "100500",
-        sources={"transcripts": True, "screen": False, "agents": True},
+        sources={"transcripts": True, "percepts": False, "agents": True},
     )
 
     assert "### Transcript" in result
@@ -253,7 +253,7 @@ def test_cluster_range_with_screen(tmp_path, monkeypatch):
         "20240101",
         "100000",
         "100500",
-        sources={"transcripts": False, "screen": True, "agents": False},
+        sources={"transcripts": False, "percepts": True, "agents": False},
     )
 
     assert "Screen Activity" in result
@@ -289,7 +289,7 @@ def test_cluster_range_with_multiple_screen_files(tmp_path, monkeypatch):
         "20240101",
         "100000",
         "100500",
-        sources={"transcripts": False, "screen": True, "agents": False},
+        sources={"transcripts": False, "percepts": True, "agents": False},
     )
 
     # Should include content from both screen files
@@ -333,7 +333,7 @@ def test_cluster_segments_with_split_screen(tmp_path, monkeypatch):
 
     assert len(segments) == 1
     assert segments[0]["key"] == "100000_300"
-    assert "screen" in segments[0]["types"]
+    assert "percepts" in segments[0]["types"]
 
 
 def test_cluster_span(tmp_path, monkeypatch):
@@ -367,12 +367,12 @@ def test_cluster_span(tmp_path, monkeypatch):
     result, counts = mod.cluster_span(
         "20240101",
         ["090000_300", "110000_300"],
-        sources={"transcripts": True, "screen": False, "agents": False},
+        sources={"transcripts": True, "percepts": False, "agents": False},
     )
 
     # Should have 2 transcript entries (one per segment)
     assert counts["transcripts"] == 2
-    assert counts["screen"] == 0
+    assert counts["percepts"] == 0
     assert "morning segment" in result
     assert "late morning segment" in result
     # Should NOT include the skipped segment
@@ -398,7 +398,7 @@ def test_cluster_span_missing_segment(tmp_path, monkeypatch):
         mod.cluster_span(
             "20240101",
             ["090000_300", "100000_300"],
-            sources={"transcripts": True, "screen": False, "agents": False},
+            sources={"transcripts": True, "percepts": False, "agents": False},
         )
 
     assert "100000_300" in str(exc_info.value)
@@ -424,7 +424,7 @@ def test_cluster_with_agent_filter_dict(tmp_path, monkeypatch):
     # Test filtering to only include entities
     result, counts = mod.cluster(
         "20240101",
-        sources={"transcripts": True, "screen": False, "agents": {"entities": True}},
+        sources={"transcripts": True, "percepts": False, "agents": {"entities": True}},
     )
 
     assert counts["transcripts"] == 1
@@ -455,7 +455,7 @@ def test_cluster_with_agent_filter_multiple(tmp_path, monkeypatch):
         "20240101",
         sources={
             "transcripts": True,
-            "screen": False,
+            "percepts": False,
             "agents": {"entities": True, "meetings": "required", "flow": False},
         },
     )
@@ -488,7 +488,7 @@ def test_cluster_with_agent_filter_app_namespaced(tmp_path, monkeypatch):
         "20240101",
         sources={
             "transcripts": True,
-            "screen": False,
+            "percepts": False,
             "agents": {"entities": False, "todos:review": True},
         },
     )
@@ -515,7 +515,7 @@ def test_cluster_with_empty_agent_filter(tmp_path, monkeypatch):
     # Empty dict should mean no agents
     result, counts = mod.cluster(
         "20240101",
-        sources={"transcripts": True, "screen": False, "agents": {}},
+        sources={"transcripts": True, "percepts": False, "agents": {}},
     )
 
     assert counts["transcripts"] == 1
diff --git a/tests/test_cluster_full.py b/tests/test_cluster_full.py
index 49797e04a..55f626da5 100644
--- a/tests/test_cluster_full.py
+++ b/tests/test_cluster_full.py
@@ -29,7 +29,7 @@ def test_cluster_full(tmp_path, monkeypatch):
     copy_day(tmp_path)
     monkeypatch.setenv("JOURNAL_PATH", str(tmp_path))
     md, counts = mod.cluster(
-        "20240101", sources={"transcripts": True, "screen": False, "agents": True}
+        "20240101", sources={"transcripts": True, "percepts": False, "agents": True}
     )
     # Transcript entries come from 2 segments on 20240101 (default + import.apple)
     assert counts["transcripts"] == 2
@@ -45,7 +45,7 @@ def test_cluster_default_sources(tmp_path, monkeypatch):
     copy_day(tmp_path)
     monkeypatch.setenv("JOURNAL_PATH", str(tmp_path))
     out, _counts = mod.cluster(
-        "20240101", sources={"transcripts": True, "screen": False, "agents": True}
+        "20240101", sources={"transcripts": True, "percepts": False, "agents": True}
     )
     # Now uses insight format: "### {stem} summary"
     assert "### screen summary" in out
@@ -59,7 +59,7 @@ def test_cluster_range_raw_screen(tmp_path, monkeypatch):
         "20240101",
         "123456",
         "123556",
-        sources={"transcripts": True, "screen": True, "agents": False},
+        sources={"transcripts": True, "percepts": True, "agents": False},
     )
     # Range mode with screen=True uses raw screen data.
     assert "### Screen Activity" in out
diff --git a/tests/test_generate_full.py b/tests/test_generate_full.py
index 221abfcd4..f0f205d15 100644
--- a/tests/test_generate_full.py
+++ b/tests/test_generate_full.py
@@ -79,7 +79,7 @@ def test_generate_output_ndjson(tmp_path, monkeypatch):
 
     test_generator = tmp_path / "test_gen.md"
     test_generator.write_text(
-        '{\n  "type": "generate",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "instructions": {"system": "journal", "sources": {"audio": true, "screen": true}}\n}\n\nTest prompt'
+        '{\n  "type": "generate",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "instructions": {"system": "journal", "sources": {"transcripts": true, "percepts": true}}\n}\n\nTest prompt'
     )
 
     # Mock the underlying generation function in think.models
@@ -146,7 +146,7 @@ def post_process(result, context):
 
     test_generator = tmp_path / "hooked_gen.md"
     test_generator.write_text(
-        '{\n  "type": "generate",\n  "title": "Hooked",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "hook": {"post": "test_hook"},\n  "instructions": {"system": "journal", "sources": {"audio": true, "screen": true}}\n}\n\nTest prompt'
+        '{\n  "type": "generate",\n  "title": "Hooked",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "hook": {"post": "test_hook"},\n  "instructions": {"system": "journal", "sources": {"transcripts": true, "percepts": true}}\n}\n\nTest prompt'
     )
 
     # Mock the underlying generation function in think.models
@@ -198,7 +198,7 @@ def test_generate_without_hook_succeeds(tmp_path, monkeypatch):
 
     test_generator = tmp_path / "nohook_gen.md"
     test_generator.write_text(
-        '{\n  "type": "generate",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "instructions": {"system": "journal", "sources": {"audio": true, "screen": true}}\n}\n\nNo hook prompt'
+        '{\n  "type": "generate",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "instructions": {"system": "journal", "sources": {"transcripts": true, "percepts": true}}\n}\n\nNo hook prompt'
     )
 
     # Mock the underlying generation function in think.models
@@ -265,7 +265,7 @@ def test_generate_skipped_on_no_input(tmp_path, monkeypatch):
 
     test_generator = tmp_path / "empty_gen.md"
     test_generator.write_text(
-        '{\n  "type": "generate",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "instructions": {"system": "journal", "sources": {"audio": true, "screen": true}}\n}\n\nTest prompt'
+        '{\n  "type": "generate",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "instructions": {"system": "journal", "sources": {"transcripts": true, "percepts": true}}\n}\n\nTest prompt'
     )
 
     monkeypatch.setenv("GOOGLE_API_KEY", "x")
diff --git a/tests/test_generators.py b/tests/test_generators.py
index 5d9143a49..5cfc86172 100644
--- a/tests/test_generators.py
+++ b/tests/test_generators.py
@@ -135,7 +135,7 @@ def test_speakers_has_required_audio():
     sources = instructions.get("sources", {})
 
     assert sources.get("transcripts") == "required", "speakers should require transcripts"
-    assert sources.get("screen") is True, "speakers should include screen"
+    assert sources.get("percepts") is True, "speakers should include percepts"
 
 
 def _write_temp_muse_prompt(stem: str, frontmatter: str) -> Path:
diff --git a/tests/test_journal_stats.py b/tests/test_journal_stats.py
index c67efb839..b202ca364 100644
--- a/tests/test_journal_stats.py
+++ b/tests/test_journal_stats.py
@@ -172,7 +172,7 @@ def test_token_usage(tmp_path, monkeypatch):
     assert "token_usage_by_day" in data
     assert "token_totals_by_model" in data
     assert "total_transcript_duration" in data
-    assert "total_screen_duration" in data
+    assert "total_percept_duration" in data
     assert (
         data["token_usage_by_day"]["20240101"]["gemini-2.5-flash"]["total_tokens"]
         == 495
diff --git a/tests/test_muse.py b/tests/test_muse.py
index d98ba02c9..cb7755678 100644
--- a/tests/test_muse.py
+++ b/tests/test_muse.py
@@ -39,11 +39,11 @@ def test_merge_instructions_config_with_overrides():
 
 def test_merge_instructions_config_sources_merge():
     """Test that sources dict is merged, not replaced."""
-    defaults = {"system": None, "sources": {"transcripts": False, "screen": False}}
+    defaults = {"system": None, "sources": {"transcripts": False, "percepts": False}}
     overrides = {"sources": {"transcripts": True}}
     result = _merge_instructions_config(defaults, overrides)
     assert result["sources"]["transcripts"] is True  # Overridden
-    assert result["sources"]["screen"] is False  # Preserved from defaults
+    assert result["sources"]["percepts"] is False  # Preserved from defaults
 
 
 def test_merge_instructions_config_ignores_unknown_keys():
@@ -236,7 +236,7 @@ class TestComposeInstructions:
 
         assert "sources" in result
         assert result["sources"]["transcripts"] is False
-        assert result["sources"]["screen"] is False
+        assert result["sources"]["percepts"] is False
         assert result["sources"]["agents"] is False
 
     def test_sources_can_be_overridden(self, monkeypatch, tmp_path):
@@ -256,7 +256,7 @@ class TestComposeInstructions:
         )
 
         assert result["sources"]["transcripts"] is True  # Overridden
-        assert result["sources"]["screen"] is False  # Default preserved
+        assert result["sources"]["percepts"] is False  # Default preserved
         assert result["sources"]["agents"] is True  # Overridden
 
 
diff --git a/tests/test_output_hooks.py b/tests/test_output_hooks.py
index 9768bb88f..075ddad52 100644
--- a/tests/test_output_hooks.py
+++ b/tests/test_output_hooks.py
@@ -170,7 +170,7 @@ def test_output_hook_invocation(tmp_path, monkeypatch):
 
     prompt_file = tmp_path / "hooked_test.md"
     prompt_file.write_text(
-        '{\n  "type": "generate",\n  "title": "Hooked",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "hook": {"post": "hooked_test"},\n  "instructions": {"system": "journal", "sources": {"audio": true, "screen": true}}\n}\n\nTest prompt'
+        '{\n  "type": "generate",\n  "title": "Hooked",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "hook": {"post": "hooked_test"},\n  "instructions": {"system": "journal", "sources": {"transcripts": true, "percepts": true}}\n}\n\nTest prompt'
     )
 
     hook_file = tmp_path / "hooked_test.py"
@@ -224,7 +224,7 @@ def test_output_hook_returns_none(tmp_path, monkeypatch):
 
     prompt_file = tmp_path / "noop_test.md"
     prompt_file.write_text(
-        '{\n  "type": "generate",\n  "title": "Noop",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "hook": {"post": "noop_test"},\n  "instructions": {"system": "journal", "sources": {"audio": true, "screen": true}}\n}\n\nTest prompt'
+        '{\n  "type": "generate",\n  "title": "Noop",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "hook": {"post": "noop_test"},\n  "instructions": {"system": "journal", "sources": {"transcripts": true, "percepts": true}}\n}\n\nTest prompt'
     )
 
     hook_file = tmp_path / "noop_test.py"
@@ -270,7 +270,7 @@ def test_output_hook_error_fallback(tmp_path, monkeypatch):
 
     prompt_file = tmp_path / "broken_test.md"
     prompt_file.write_text(
-        '{\n  "type": "generate",\n  "title": "Broken",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "hook": {"post": "broken_test"},\n  "instructions": {"system": "journal", "sources": {"audio": true, "screen": true}}\n}\n\nTest prompt'
+        '{\n  "type": "generate",\n  "title": "Broken",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "hook": {"post": "broken_test"},\n  "instructions": {"system": "journal", "sources": {"transcripts": true, "percepts": true}}\n}\n\nTest prompt'
     )
 
     hook_file = tmp_path / "broken_test.py"
@@ -387,7 +387,7 @@ def test_pre_hook_invocation(tmp_path, monkeypatch):
 
     prompt_file = tmp_path / "prehooked_test.md"
     prompt_file.write_text(
-        '{\n  "type": "generate",\n  "title": "Prehooked",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "hook": {"pre": "prehooked_test"},\n  "instructions": {"system": "journal", "sources": {"audio": true, "screen": true}}\n}\n\nOriginal prompt'
+        '{\n  "type": "generate",\n  "title": "Prehooked",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "hook": {"pre": "prehooked_test"},\n  "instructions": {"system": "journal", "sources": {"transcripts": true, "percepts": true}}\n}\n\nOriginal prompt'
     )
 
     hook_file = tmp_path / "prehooked_test.py"
@@ -447,7 +447,7 @@ def test_both_pre_and_post_hooks(tmp_path, monkeypatch):
 
     prompt_file = tmp_path / "both_hooks_test.md"
     prompt_file.write_text(
-        '{\n  "type": "generate",\n  "title": "Both Hooks",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "hook": {"pre": "both_hooks_test", "post": "both_hooks_test"},\n  "instructions": {"system": "journal", "sources": {"audio": true, "screen": true}}\n}\n\nOriginal prompt'
+        '{\n  "type": "generate",\n  "title": "Both Hooks",\n  "schedule": "daily",\n  "priority": 10,\n  "output": "md",\n  "hook": {"pre": "both_hooks_test", "post": "both_hooks_test"},\n  "instructions": {"system": "journal", "sources": {"transcripts": true, "percepts": true}}\n}\n\nOriginal prompt'
     )
 
     hook_file = tmp_path / "both_hooks_test.py"
diff --git a/think/cluster.py b/think/cluster.py
index 61c3ae0bf..97f4c63c5 100644
--- a/think/cluster.py
+++ b/think/cluster.py
@@ -94,7 +94,7 @@ def _process_segment(
     segment_path: Path,
     date_str: str,
     transcripts: bool,
-    screen: bool,
+    percepts: bool,
     agents: bool | dict[str, bool | str],
 ) -> list[dict[str, Any]]:
     """Process a single segment directory and return entries.
@@ -103,7 +103,7 @@ def _process_segment(
         segment_path: Path to segment directory
         date_str: Date in YYYYMMDD format
         transcripts: Whether to load transcript content (JSONL and markdown)
-        screen: Whether to load raw screen data from *screen.jsonl files
+        percepts: Whether to load raw screen data from *screen.jsonl files
         agents: Whether to load agent output summaries from *.md files.
             Can be bool (all/none) or dict for selective filtering
             (e.g., {"entities": True, "meetings": "required"}).
@@ -187,7 +187,7 @@ def _process_segment(
                 )
 
     # Process raw screen data from screen.jsonl and *_screen.jsonl
-    if screen:
+    if percepts:
         screen_files = list(segment_path.glob("*screen.jsonl"))
         for screen_jsonl in screen_files:
             try:
@@ -199,7 +199,7 @@ def _process_segment(
                             "segment_key": segment_key,
                             "segment_start": segment_start,
                             "segment_end": segment_end,
-                            "prefix": "screen",
+                            "prefix": "percept",
                             "content": content,
                             "name": f"{segment_path.name}/{screen_jsonl.name}",
                             "stream": stream,
@@ -254,7 +254,7 @@ def _process_segment(
 
 
 def _load_entries(
-    day_dir: str, transcripts: bool, screen: bool, agents: bool | dict[str, bool | str]
+    day_dir: str, transcripts: bool, percepts: bool, agents: bool | dict[str, bool | str]
 ) -> list[dict[str, Any]]:
     """Load all transcript entries from a day directory."""
     from think.utils import segment_parse
@@ -269,7 +269,7 @@ def _load_entries(
         start_time, _ = segment_parse(seg_path.name)
         if not start_time:
             continue
-        entries.extend(_process_segment(seg_path, date_str, transcripts, screen, agents))
+        entries.extend(_process_segment(seg_path, date_str, transcripts, percepts, agents))
 
     entries.sort(key=lambda e: e["timestamp"])
     return entries
@@ -293,16 +293,16 @@ def _count_by_source(entries: list[dict[str, Any]]) -> dict[str, int]:
 
     Maps the internal prefix names to source config names:
     - "transcript" -> "transcripts"
-    - "screen" -> "screen"
+    - "percept" -> "percepts"
     - "agent_output" -> "agents"
 
     Returns:
-        Dict with counts for each source type, e.g., {"transcripts": 2, "screen": 1, "agents": 0}
+        Dict with counts for each source type, e.g., {"transcripts": 2, "percepts": 1, "agents": 0}
     """
     # Map internal prefix to source config name
     prefix_to_source = {
         "transcript": "transcripts",
-        "screen": "screen",
+        "percept": "percepts",
         "agent_output": "agents",
     }
 
@@ -311,7 +311,7 @@ def _count_by_source(entries: list[dict[str, Any]]) -> dict[str, int]:
     # Ensure all standard sources are present (even if 0)
     return {
         "transcripts": counts.get("transcripts", 0),
-        "screen": counts.get("screen", 0),
+        "percepts": counts.get("percepts", 0),
         "agents": counts.get("agents", 0),
     }
 
@@ -344,7 +344,7 @@ def _groups_to_markdown(groups: dict[str, list[dict[str, Any]]]) -> str:
                 lines.append(f"### {header}")
                 lines.append(entry["content"].strip())
                 lines.append("")
-            elif entry["prefix"] == "screen":
+            elif entry["prefix"] == "percept":
                 lines.append("### Screen Activity")
                 lines.append(entry["content"].strip())
                 lines.append("")
@@ -407,7 +407,7 @@ def cluster_scan(day: str) -> tuple[list[tuple[str, str]], list[tuple[str, str]]
 
     date_str = _date_str(day_dir)
     transcript_slots: set[datetime] = set()
-    screen_slots: set[datetime] = set()
+    percept_slots: set[datetime] = set()
     day_path_obj = Path(day_dir)
 
     # Check timestamp subdirectories for content files
@@ -437,11 +437,11 @@ def cluster_scan(day: str) -> tuple[list[tuple[str, str]], list[tuple[str, str]]
             if (seg_path / "screen.jsonl").exists() or any(
                 seg_path.glob("*_screen.jsonl")
             ):
-                screen_slots.add(slot)
+                percept_slots.add(slot)
 
     transcript_ranges = _slots_to_ranges(sorted(transcript_slots))
-    screen_ranges = _slots_to_ranges(sorted(screen_slots))
-    return transcript_ranges, screen_ranges
+    percept_ranges = _slots_to_ranges(sorted(percept_slots))
+    return transcript_ranges, percept_ranges
 
 
 def cluster_segments(day: str) -> list[dict[str, Any]]:
@@ -458,7 +458,7 @@ def cluster_segments(day: str) -> list[dict[str, Any]]:
         - key: segment directory name (HHMMSS_LEN format)
         - start: start time as HH:MM
         - end: end time as HH:MM
-        - types: list of content types present ("transcripts", "screen", or both)
+        - types: list of content types present ("transcripts", "percepts", or both)
     """
     from think.utils import segment_parse
 
@@ -489,7 +489,7 @@ def cluster_segments(day: str) -> list[dict[str, Any]]:
 
         # Check for screen content
         if (seg_path / "screen.jsonl").exists() or any(seg_path.glob("*_screen.jsonl")):
-            types.append("screen")
+            types.append("percepts")
 
         if not types:
             continue
@@ -546,14 +546,14 @@ def cluster(
 
     Args:
         day: Day in YYYYMMDD format
-        sources: Dict with keys "transcripts", "screen", "agents".
+        sources: Dict with keys "transcripts", "percepts", "agents".
             Values can be bool, "required" string, or dict (for agents).
             The "agents" source can be a dict for selective filtering,
             e.g., {"entities": True, "meetings": "required"}.
 
     Returns:
         Tuple of (markdown, source_counts) where source_counts is a dict
-        with keys "transcripts", "screen", "agents" mapping to entry counts.
+        with keys "transcripts", "percepts", "agents" mapping to entry counts.
     """
     empty_counts = {"transcripts": 0, "screen": 0, "agents": 0}
 
@@ -565,7 +565,7 @@ def cluster(
     entries = _load_entries(
         day_dir,
         transcripts=sources.get("transcripts", False),
-        screen=sources.get("screen", False),
+        percepts=sources.get("percepts", False),
         agents=sources.get("agents", False),
     )
     if not entries:
@@ -590,13 +590,13 @@ def cluster_period(
     Args:
         day: Day in YYYYMMDD format
         segment: Segment key in HHMMSS_LEN format (e.g., "163045_300")
-        sources: Dict with keys "transcripts", "screen", "agents".
+        sources: Dict with keys "transcripts", "percepts", "agents".
             Values can be bool, "required" string, or dict (for agents).
         stream: Stream name. If None, searches all streams for the segment.
 
     Returns:
         Tuple of (markdown, source_counts) where source_counts is a dict
-        with keys "transcripts", "screen", "agents" mapping to entry counts.
+        with keys "transcripts", "percepts", "agents" mapping to entry counts.
     """
     empty_counts = {"transcripts": 0, "screen": 0, "agents": 0}
 
@@ -608,7 +608,7 @@ def cluster_period(
     entries = _load_entries_from_segment(
         str(segment_dir),
         transcripts=sources.get("transcripts", False),
-        screen=sources.get("screen", False),
+        percepts=sources.get("percepts", False),
         agents=sources.get("agents", False),
     )
     if not entries:
@@ -622,7 +622,7 @@ def cluster_period(
 def _load_entries_from_segment(
     segment_dir: str,
     transcripts: bool,
-    screen: bool,
+    percepts: bool,
     agents: bool | dict[str, bool | str],
 ) -> list[dict[str, Any]]:
     """Load entries from a single segment directory.
@@ -630,7 +630,7 @@ def _load_entries_from_segment(
     Args:
         segment_dir: Path to segment directory (e.g., /path/to/20251109/163045_300)
         transcripts: Whether to load transcript content (JSONL and markdown)
-        screen: Whether to load raw screen data from *screen.jsonl files
+        percepts: Whether to load raw screen data from *screen.jsonl files
         agents: Whether to load agent output summaries from *.md files
 
     Returns:
@@ -639,7 +639,7 @@ def _load_entries_from_segment(
     segment_path_obj = Path(segment_dir)
     # Parent is stream dir; grandparent is day dir
     date_str = _date_str(str(segment_path_obj.parent.parent))
-    entries = _process_segment(segment_path_obj, date_str, transcripts, screen, agents)
+    entries = _process_segment(segment_path_obj, date_str, transcripts, percepts, agents)
     entries.sort(key=lambda e: e["timestamp"])
     return entries
 
@@ -660,13 +660,13 @@ def cluster_span(
     Args:
         day: Day in YYYYMMDD format
         span: List of segment keys in HHMMSS_LEN format (e.g., ["163045_300", "170000_600"])
-        sources: Dict with keys "transcripts", "screen", "agents".
+        sources: Dict with keys "transcripts", "percepts", "agents".
             Values can be bool, "required" string, or dict (for agents).
         stream: Stream name. If None, searches all streams for each segment.
 
     Returns:
         Tuple of (markdown, source_counts) where source_counts is a dict
-        with keys "transcripts", "screen", "agents" mapping to entry counts.
+        with keys "transcripts", "percepts", "agents" mapping to entry counts.
 
     Raises:
         ValueError: If any segment directories are missing
@@ -692,7 +692,7 @@ def cluster_span(
         segment_entries = _load_entries_from_segment(
             str(seg_dir),
             transcripts=sources.get("transcripts", False),
-            screen=sources.get("screen", False),
+            percepts=sources.get("percepts", False),
             agents=sources.get("agents", False),
         )
         entries.extend(segment_entries)
@@ -735,7 +735,7 @@ def cluster_range(
         day: Day in YYYYMMDD format
         start: Start time in HHMMSS format
         end: End time in HHMMSS format
-        sources: Dict with keys "transcripts", "screen", "agents".
+        sources: Dict with keys "transcripts", "percepts", "agents".
             Values can be bool, "required" string, or dict (for agents).
     """
     day_dir = str(day_path(day))
@@ -746,7 +746,7 @@ def cluster_range(
     entries = _load_entries(
         day_dir,
         transcripts=sources.get("transcripts", False),
-        screen=sources.get("screen", False),
+        percepts=sources.get("percepts", False),
         agents=sources.get("agents", False),
     )
     # Include segments that overlap with the requested range
diff --git a/think/journal_stats.py b/think/journal_stats.py
index 2c1a1e784..f35205b53 100644
--- a/think/journal_stats.py
+++ b/think/journal_stats.py
@@ -23,7 +23,7 @@ class JournalStats:
         self.days: Dict[str, Dict[str, float | int]] = {}
         self.totals: Counter[str] = Counter()
         self.total_transcript_duration = 0.0
-        self.total_screen_duration = 0.0
+        self.total_percept_duration = 0.0
         self.agent_counts: Counter[str] = Counter()
         self.agent_minutes: Counter[str] = Counter()
         self.facet_counts: Counter[str] = Counter()
@@ -107,7 +107,7 @@ class JournalStats:
         times_seconds = [self._parse_timestamp(t) for t in timestamps]
         return max(times_seconds) - min(times_seconds)
 
-    def _calculate_screen_duration(self, frames: list) -> float:
+    def _calculate_percept_duration(self, frames: list) -> float:
         """Calculate screen duration from min/max frame timestamps."""
         # Skip header (first element if it has no frame_id)
         frame_timestamps = [
@@ -132,13 +132,13 @@ class JournalStats:
         counts_for_totals = {
             k: v
             for k, v in stats.items()
-            if k not in ("transcript_duration", "screen_duration")
+            if k not in ("transcript_duration", "percept_duration")
         }
         self.totals.update(counts_for_totals)
 
         # Accumulate durations
         self.total_transcript_duration += stats.get("transcript_duration", 0.0)
-        self.total_screen_duration += stats.get("screen_duration", 0.0)
+        self.total_percept_duration += stats.get("percept_duration", 0.0)
 
         # Apply agent data
         day_agent_counts: Dict[str, int] = {}
@@ -175,7 +175,7 @@ class JournalStats:
         """Scan a single day and return stats dict for caching."""
         stats: Counter[str] = Counter()
         transcript_duration = 0.0
-        screen_duration = 0.0
+        percept_duration = 0.0
         day_dir = Path(path)
 
         # Track agent data for cache
@@ -225,7 +225,7 @@ class JournalStats:
         screen_files = list(day_dir.glob("*/*/screen.jsonl"))
         screen_files.extend(day_dir.glob("*/*/*_screen.jsonl"))
         for jsonl_file in sorted(screen_files):
-            stats["screen_sessions"] += 1
+            stats["percept_sessions"] += 1
 
             try:
                 frames = load_analysis_frames(jsonl_file)
@@ -235,12 +235,12 @@ class JournalStats:
 
                 # Count frames (excluding header)
                 frame_count = sum(1 for f in frames if "frame_id" in f)
-                stats["screen_frames"] += frame_count
+                stats["percept_frames"] += frame_count
 
                 # Calculate duration from timestamps
                 if frame_count > 0:
-                    duration = self._calculate_screen_duration(frames)
-                    screen_duration += duration
+                    duration = self._calculate_percept_duration(frames)
+                    percept_duration += duration
 
             except (OSError, IOError) as e:
                 logger.warning(f"Error reading screen file {jsonl_file}: {e}")
@@ -328,7 +328,7 @@ class JournalStats:
 
         # --- Build return dict ---
         stats["transcript_duration"] = transcript_duration
-        stats["screen_duration"] = screen_duration
+        stats["percept_duration"] = percept_duration
 
         return {
             "stats": dict(stats),
@@ -460,7 +460,7 @@ class JournalStats:
             logger.info(
                 f"Scanned {len(self.days)} days, "
                 f"{self.totals.get('transcript_sessions', 0)} transcript sessions, "
-                f"{self.totals.get('screen_sessions', 0)} screen sessions"
+                f"{self.totals.get('percept_sessions', 0)} percept sessions"
                 f"{cache_status}"
             )
 
@@ -470,7 +470,7 @@ class JournalStats:
             "days": self.days,
             "totals": dict(self.totals),
             "total_transcript_duration": self.total_transcript_duration,
-            "total_screen_duration": self.total_screen_duration,
+            "total_percept_duration": self.total_percept_duration,
             "agent_counts": dict(self.agent_counts),
             "agent_minutes": {k: round(v, 2) for k, v in self.agent_minutes.items()},
             "agent_counts_by_day": self.agent_counts_by_day,
diff --git a/think/muse.py b/think/muse.py
index 600109867..e3cd6f4f0 100644
--- a/think/muse.py
+++ b/think/muse.py
@@ -335,7 +335,7 @@ _DEFAULT_INSTRUCTIONS = {
     "activity": False,
     "sources": {
         "transcripts": False,
-        "screen": False,
+        "percepts": False,
         "agents": False,
     },
 }
@@ -431,7 +431,7 @@ def compose_instructions(
           true = include current date/time in extra_context
         - "day": false | true (default: false)
           true = include analysis day context (requires analysis_day parameter)
-        - "sources": {"transcripts": bool, "screen": bool, "agents": bool|dict}
+        - "sources": {"transcripts": bool, "percepts": bool, "agents": bool|dict}
           The "agents" source can be:
           - bool: True (all agents), False (no agents)
           - "required": all agents, fail if none found
@@ -445,7 +445,7 @@ def compose_instructions(
         - system_prompt_name: str - name of system prompt (for cache keys)
         - user_instruction: str | None - loaded from user_prompt if provided
         - extra_context: str | None - facets + now + day context
-        - sources: dict - {"transcripts": bool, "screen": bool, "agents": bool|dict}
+        - sources: dict - {"transcripts": bool, "percepts": bool, "agents": bool|dict}
     """
     from think.utils import format_day