diff --git a/CHANGELOG.md b/CHANGELOG.md
index 53dbd713..6498698a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,20 @@
 
 ## [Unreleased]
 
+## [v0.51.121] — 2026-05-24 — Release CS (stage-batch3 — 4-PR low-risk batch — state.db merge / display counts / compression marker / Windows launcher)
+
+### Fixed
+
+- **PR #2788** by @Carry00 — Prevent `state.db` messages being silently dropped during sidecar merge. Two related bugs were combining to discard historical messages: (1) `get_state_db_session_messages()` was selecting `role, content, timestamp` but NOT `id`, so every row was assigned a `("legacy", ...)` merge key instead of `("message_id", ...)`; (2) when a WebUI-origin session was continued via another Hermes surface (Gateway, CLI), the reader was always hitting the *active* profile's `state.db` rather than the session's own profile. Symptom: a 189-message session showed only 50 in the WebUI. Fix: include `id` in the SELECT when the column exists, and accept an optional `profile=` arg so cross-profile reads use the right database. Both callers in `api/routes.py handle_get` now thread `profile=getattr(s, 'profile', None)` through.
+
+- **PR #2797** by @ai-ag2026 — Align messaging session display counts with deduped display messages. The `message_count` returned by `/api/session` is the display coordinate space used for pagination and the header badge. Messaging-thread `state.db` metadata can carry raw duplicate transport rows (blank assistant separators between Discord/Slack thread turns) that `_merged_session_messages_for_display()` intentionally dedupes for rendering. The advertised count was the raw row count, so the frontend expected phantom messages after dedupe — `len(display_msgs) < message_count` triggered "load older" UI states that immediately returned nothing. Fix: `raw["message_count"] = _merged_message_count` for messaging sessions, computed from the same merge that produced the displayed messages. Adds `tests/test_gateway_sync.py::test_messaging_session_message_count_matches_deduped_display_messages` covering the regression.
+
+- **PR #2803** by @simjak — Compression-summary cards no longer use ordinary tool output that merely mentions context compression. The streaming auto-compression path was using a local broad substring matcher that fired on any message containing the strings "context compaction" / "context compression" / "context was auto-compressed" / "active task list was preserved across context compression", including skill/tool JSON output and ordinary user discussion about compaction. The strict predicate at `api/compression_anchor._is_context_compression_marker()` was already correctly scoped to synthetic marker prefixes on non-tool messages. Fix: expose the strict predicate as `is_context_compression_marker()` (public name) and route `api/streaming._is_context_compression_marker` through it as a backward-compatible alias. Tool/skill output that mentions compression no longer seeds `compression_anchor_summary` cards.
+
+### Added
+
+- **PR #2783** by @Koraji95-coder — Native Windows launcher and community-guide README link (squashed from 3 commits). `start.ps1` is a PowerShell equivalent of `start.sh` that bypasses `bootstrap.py`'s `ensure_supported_platform()` refusal and invokes `server.py` directly on native Windows. It mirrors `start.sh`'s discovery (load optional `.env` with the same readonly-var filter for `UID`/`GID`/`EUID`/`EGID`/`PPID`, find Python via `HERMES_WEBUI_PYTHON` env → `python3` → `python` → `py`, validate `HERMES_WEBUI_AGENT_DIR` on disk before use, prefer the agent's `venv\Scripts\python.exe`, set `HERMES_WEBUI_HOST` / `HERMES_WEBUI_PORT` / `HERMES_WEBUI_STATE_DIR` / `HERMES_HOME` defaults). The README adds a community-maintained native Windows setup section pointing to @markwang2658's `hermes-windows-native-guide` and `hermes-windows-native` repos with the documented memory delta (~330 MB native vs ~1080 MB WSL2+Docker). Closes both halves of #1952. Assumes Python + agent venv are already set up — first-time setup still needs WSL2 once to create the venv (`bootstrap.py` still refuses on native Windows).
+
 ## [v0.51.120] — 2026-05-24 — Release CR (stage-batch2 — 3-PR low-risk batch — Bedrock provider / update check past-tag / CORS preflight)
 
 ### Added
diff --git a/README.md b/README.md
index f0074e2b..d82ecf3c 100644
--- a/README.md
+++ b/README.md
@@ -131,7 +131,13 @@ The bootstrap will:
 
 > Native Windows is not supported for this bootstrap yet. Use Linux, macOS, or WSL2.
 > For Windows / WSL auto-start at login, see [`docs/wsl-autostart.md`](docs/wsl-autostart.md).
-> A community-maintained native Windows guide is tracked in [#1952](https://github.com/nesquena/hermes-webui/issues/1952).
+
+A community-maintained native Windows setup is documented at [@markwang2658/hermes-windows-native-guide](https://github.com/markwang2658/hermes-windows-native-guide) (companion setup repo: [@markwang2658/hermes-windows-native](https://github.com/markwang2658/hermes-windows-native)). Notes from the community report in [#1952](https://github.com/nesquena/hermes-webui/issues/1952):
+
+- **Memory:** community-measured ~330 MB native vs ~1080 MB with WSL2+Docker (varies by configuration).
+- **What works:** chat, workspace browser, session management, all themes.
+- **Known limitations:** some POSIX-style file paths surface in the workspace browser; bash-assuming agent tools may not work natively.
+- **WSL2 relationship:** WSL2 is recommended *once* for first-time venv creation (since `bootstrap.py` currently refuses on native Windows). After the venv exists, `start.ps1` at the repo root runs the WebUI natively by invoking `server.py` directly — no WSL2 needed for day-to-day use.
 
 If provider setup is still incomplete after install, the onboarding wizard will point you to finish it with `hermes model` instead of trying to replicate the full CLI setup in-browser.
 For a step-by-step walkthrough of the wizard, provider choices, local model server Base URLs, and safe re-runs, see [`docs/onboarding.md`](docs/onboarding.md).
diff --git a/api/compression_anchor.py b/api/compression_anchor.py
index f251851c..12d96415 100644
--- a/api/compression_anchor.py
+++ b/api/compression_anchor.py
@@ -53,7 +53,7 @@ def _content_has_part_type(content, part_types):
     )
 
 
-def _is_context_compression_marker(message):
+def is_context_compression_marker(message):
     """Return true for synthetic compression/reference cards, not user turns."""
     if not isinstance(message, dict):
         return False
@@ -71,6 +71,11 @@ def _is_context_compression_marker(message):
     )
 
 
+def _is_context_compression_marker(message):
+    """Backward-compatible alias for callers that have not switched yet."""
+    return is_context_compression_marker(message)
+
+
 def visible_messages_for_anchor(messages, *, auto_compression: bool = False):
     """Return transcript messages that can anchor compression UI metadata.
 
diff --git a/api/models.py b/api/models.py
index 652bde3f..1fde1b51 100644
--- a/api/models.py
+++ b/api/models.py
@@ -2815,21 +2815,28 @@ def _json_loads_if_string(value):
         return value
 
 
-def get_state_db_session_messages(sid, *, stitch_continuations: bool = False) -> list:
-    """Read messages for a Hermes session from the active profile's state.db.
+def get_state_db_session_messages(sid, *, stitch_continuations: bool = False, profile=None) -> list:
+    """Read messages for a Hermes session from state.db.
 
-    This generic reader intentionally works for any session source, including
-    WebUI-origin sessions that were later updated through another Hermes surface
-    such as the Gateway API Server.  When ``stitch_continuations`` is true it
-    preserves the historical CLI/external-agent behavior of walking compatible
-    compression/close parent segments before reading messages.
+    When *profile* is supplied, reads from that profile's state.db; otherwise
+    falls back to the active profile's state.db.  This generic reader works for
+    any session source, including WebUI-origin sessions that were later updated
+    through another Hermes surface such as the Gateway API Server.  When
+    ``stitch_continuations`` is true it preserves the historical CLI/external-agent
+    behavior of walking compatible compression/close parent segments before reading
+    messages.
     """
     try:
         import sqlite3
     except ImportError:
         return []
 
-    db_path = _active_state_db_path()
+    if isinstance(profile, str) and profile:
+        db_path = _get_profile_home(profile) / 'state.db'
+        if not db_path.exists():
+            db_path = _active_state_db_path()
+    else:
+        db_path = _active_state_db_path()
     if not db_path.exists():
         return []
 
@@ -2852,7 +2859,8 @@ def get_state_db_session_messages(sid, *, stitch_continuations: bool = False) ->
                 'reasoning_content',
                 'codex_message_items',
             ]
-            selected = ['role', 'content', 'timestamp'] + [c for c in optional if c in available]
+            id_col = ['id'] if 'id' in available else []
+            selected = id_col + ['role', 'content', 'timestamp'] + [c for c in optional if c in available]
 
             session_chain = [str(sid)]
             if stitch_continuations:
diff --git a/api/routes.py b/api/routes.py
index efc76b06..6dc8dfb5 100644
--- a/api/routes.py
+++ b/api/routes.py
@@ -3752,17 +3752,18 @@ def handle_get(handler, parsed) -> bool:
             cli_messages = []
             state_db_messages = []
             sidecar_metadata_messages = None
+            _session_profile = getattr(s, 'profile', None) or None
             if is_messaging_session:
                 cli_messages = get_cli_session_messages(sid)
             elif load_messages:
-                state_db_messages = get_state_db_session_messages(sid)
+                state_db_messages = get_state_db_session_messages(sid, profile=_session_profile)
             elif not is_messaging_session:
                 # Metadata-only callers still need the same append-only
                 # reconciliation contract as full loads. A raw state.db summary
                 # can count stale rows that the merge intentionally filters out,
                 # which makes sidebar polling think the transcript is always
                 # newer than the loaded conversation.
-                state_db_messages = get_state_db_session_messages(sid)
+                state_db_messages = get_state_db_session_messages(sid, profile=_session_profile)
                 sidecar_metadata_session = Session.load(sid)
                 sidecar_metadata_messages = (
                     getattr(sidecar_metadata_session, "messages", []) or []
@@ -3926,6 +3927,13 @@ def handle_get(handler, parsed) -> bool:
                 )
             if cli_meta and _is_messaging_session_record(cli_meta):
                 raw = _merge_cli_sidebar_metadata(raw, cli_meta)
+                # ``message_count`` in /api/session is the display coordinate
+                # space used for pagination and the header badge. Messaging
+                # state.db metadata can include raw duplicate transport rows that
+                # _merged_session_messages_for_display() intentionally dedupes;
+                # keep the raw count available as ``actual_message_count`` but
+                # do not let it make the frontend expect phantom messages.
+                raw["message_count"] = _merged_message_count
             # Signal to the frontend that older messages were omitted.
             # For msg_before paging, compare against the filtered set,
             # not the full list — otherwise we signal truncation even when
diff --git a/api/streaming.py b/api/streaming.py
index 663d84d1..5718ee1c 100644
--- a/api/streaming.py
+++ b/api/streaming.py
@@ -35,7 +35,7 @@ from api.config import (
     load_settings,
 )
 from api.helpers import redact_session_data, _redact_text
-from api.compression_anchor import visible_messages_for_anchor
+from api.compression_anchor import is_context_compression_marker, visible_messages_for_anchor
 from api.metering import meter
 from api.run_journal import RunJournalWriter
 from api.turn_journal import append_turn_journal_event_for_stream
@@ -2299,15 +2299,7 @@ def _dedupe_replayed_active_context(previous_context, result_messages):
 
 
 def _is_context_compression_marker(msg):
-    if not isinstance(msg, dict):
-        return False
-    text = _message_text(msg.get('content', '')).lower()
-    return (
-        'context compaction' in text
-        or 'context compression' in text
-        or 'context was auto-compressed' in text
-        or 'active task list was preserved across context compression' in text
-    )
+    return is_context_compression_marker(msg)
 
 
 def _compact_summary_text(raw_text: str | None, limit: int = 320) -> str | None:
diff --git a/start.ps1 b/start.ps1
new file mode 100644
index 00000000..191db6c1
--- /dev/null
+++ b/start.ps1
@@ -0,0 +1,156 @@
+<#
+.SYNOPSIS
+    Native Windows launcher for Hermes WebUI - PowerShell equivalent
+    of start.sh, bypassing bootstrap.py's platform refusal.
+
+.DESCRIPTION
+    Mirrors start.sh's discovery: load optional .env, find Python,
+    locate the hermes-agent install, set sensible env defaults, then
+    invoke server.py directly. The bootstrap.py path is skipped
+    because it currently raises on platform.system() == 'Windows';
+    server.py itself runs cleanly on native Windows.
+
+    Assumes Python + hermes-agent + the WebUI Python deps are already
+    installed - same assumption start.sh makes when invoked outside
+    a fresh bootstrap. For first-time setup, run bootstrap.py inside
+    WSL2 once to create the venv, then this script can use that venv.
+
+.PARAMETER Port
+    TCP port the WebUI binds to. Overrides HERMES_WEBUI_PORT env.
+    Default: 8787.
+
+.PARAMETER BindHost
+    Bind address. Overrides HERMES_WEBUI_HOST env.
+    Default: 127.0.0.1.
+
+.EXAMPLE
+    .\start.ps1
+    # Bind to 127.0.0.1:8787, foreground.
+
+.EXAMPLE
+    .\start.ps1 -Port 9000
+    # Bind to 127.0.0.1:9000.
+
+.EXAMPLE
+    $env:HERMES_WEBUI_HOST = '0.0.0.0'
+    .\start.ps1
+    # Bind to all interfaces (set a password first via env or Settings).
+
+.LINK
+    https://github.com/nesquena/hermes-webui/issues/1952
+#>
+
+[CmdletBinding()]
+param(
+    [int]$Port = 0,
+    [string]$BindHost = ''
+)
+
+$ErrorActionPreference = 'Stop'
+$RepoRoot = Split-Path -Parent $PSCommandPath
+
+# === Load .env (mirroring start.sh's filtering) ========================
+$envFile = Join-Path $RepoRoot '.env'
+if (Test-Path $envFile) {
+    foreach ($line in Get-Content $envFile -Encoding UTF8) {
+        $trimmed = $line.Trim()
+        if (-not $trimmed -or $trimmed.StartsWith('#') -or -not $trimmed.Contains('=')) { continue }
+        $kv = $trimmed -split '=', 2
+        $key = ($kv[0].Trim() -replace '^export\s+', '')
+        # Filter out shell-readonly vars (UID, GID, EUID, EGID, PPID) per start.sh
+        if ($key -in @('UID', 'GID', 'EUID', 'EGID', 'PPID')) { continue }
+        if ($key -notmatch '^[A-Za-z_][A-Za-z0-9_]*$') { continue }
+        # Explicit $null check — an env var explicitly set to '' should still
+        # be considered "set" and NOT overridden by .env (empty string is
+        # falsey in PowerShell, so a plain truthy check would mis-skip).
+        if ($null -ne [Environment]::GetEnvironmentVariable($key)) { continue }
+        $val = $kv[1]
+        if ($val -match '^"(.*)"$') { $val = $Matches[1] }
+        elseif ($val -match "^'(.*)'$") { $val = $Matches[1] }
+        [Environment]::SetEnvironmentVariable($key, $val)
+    }
+}
+
+# === Find Python (matches start.sh order) ==============================
+$Python = $env:HERMES_WEBUI_PYTHON
+if (-not $Python) {
+    foreach ($candidate in @('python3', 'python', 'py')) {
+        $cmd = Get-Command $candidate -ErrorAction SilentlyContinue
+        if ($cmd) { $Python = $cmd.Source; break }
+    }
+}
+if (-not $Python) {
+    Write-Error 'Python 3 is required to run server.py (set HERMES_WEBUI_PYTHON or add python to PATH).'
+    exit 1
+}
+
+# === Find Hermes Agent dir (server.py imports from it) =================
+# When HERMES_WEBUI_AGENT_DIR is set we still validate it on disk —
+# an explicit override pointing at a missing dir should fail FAST
+# with a clear message, not silently progress into a python3 launch
+# that's about to crash on missing imports. Smoke-test feedback on
+# PR #2783: nesquena/hermes-webui requested this guard.
+$AgentDir = $env:HERMES_WEBUI_AGENT_DIR
+if ($AgentDir -and -not (Test-Path (Join-Path $AgentDir 'hermes_cli'))) {
+    Write-Error "HERMES_WEBUI_AGENT_DIR is set to '$AgentDir' but no hermes_cli/ folder exists there. Unset the variable to fall back to auto-discovery, or fix the path."
+    exit 1
+}
+if (-not $AgentDir) {
+    $candidates = @(
+        (Join-Path $env:USERPROFILE '.hermes\hermes-agent'),
+        (Join-Path (Split-Path -Parent $RepoRoot) 'hermes-agent')
+    )
+    foreach ($c in $candidates) {
+        if (Test-Path (Join-Path $c 'hermes_cli')) { $AgentDir = $c; break }
+    }
+}
+if (-not $AgentDir) {
+    $expectedPrimary = Join-Path $env:USERPROFILE '.hermes\hermes-agent'
+    $expectedSibling = Join-Path (Split-Path -Parent $RepoRoot) 'hermes-agent'
+    Write-Error "hermes-agent not found at $expectedPrimary or $expectedSibling. Set HERMES_WEBUI_AGENT_DIR explicitly."
+    exit 1
+}
+
+# === Prefer the agent's venv Python if available =======================
+$agentVenvPython = Join-Path $AgentDir 'venv\Scripts\python.exe'
+if (Test-Path $agentVenvPython) {
+    $Python = $agentVenvPython
+}
+
+# === Resolve bind + state defaults =====================================
+$BindHostFinal = if ($BindHost) { $BindHost } elseif ($env:HERMES_WEBUI_HOST) { $env:HERMES_WEBUI_HOST } else { '127.0.0.1' }
+$PortFinal = if ($Port) { $Port } elseif ($env:HERMES_WEBUI_PORT) { [int]$env:HERMES_WEBUI_PORT } else { 8787 }
+$env:HERMES_WEBUI_HOST = $BindHostFinal
+$env:HERMES_WEBUI_PORT = "$PortFinal"
+if (-not $env:HERMES_WEBUI_STATE_DIR) {
+    $env:HERMES_WEBUI_STATE_DIR = Join-Path $env:USERPROFILE '.hermes\webui'
+}
+if (-not $env:HERMES_HOME) {
+    $env:HERMES_HOME = Join-Path $env:USERPROFILE '.hermes'
+}
+
+# === Ensure dirs exist =================================================
+New-Item -ItemType Directory -Force -Path $env:HERMES_HOME | Out-Null
+New-Item -ItemType Directory -Force -Path $env:HERMES_WEBUI_STATE_DIR | Out-Null
+
+# === Launch (foreground, matches start.sh) =============================
+Write-Host "[start.ps1] Hermes WebUI native Windows launcher" -ForegroundColor Cyan
+Write-Host "[start.ps1] Python:     $Python"
+Write-Host "[start.ps1] Agent dir:  $AgentDir"
+Write-Host "[start.ps1] State dir:  $env:HERMES_WEBUI_STATE_DIR"
+Write-Host "[start.ps1] Binding:    ${BindHostFinal}:${PortFinal}"
+Write-Host ""
+
+$serverPath = Join-Path $RepoRoot 'server.py'
+if (-not (Test-Path $serverPath)) {
+    Write-Error "server.py not found at $serverPath - is this the hermes-webui repo root?"
+    exit 1
+}
+
+Push-Location $RepoRoot
+try {
+    & $Python $serverPath @args
+    exit $LASTEXITCODE
+} finally {
+    Pop-Location
+}
diff --git a/tests/test_gateway_sync.py b/tests/test_gateway_sync.py
index 1cca29de..7181972d 100644
--- a/tests/test_gateway_sync.py
+++ b/tests/test_gateway_sync.py
@@ -1708,6 +1708,77 @@ def test_session_prefers_state_db_messages_over_stale_local_snapshot(cleanup_tes
             pass
 
 
+def test_messaging_session_message_count_matches_deduped_display_messages(cleanup_test_sessions):
+    """Thread sessions must not advertise raw DB rows that display merge dedupes away."""
+    from api.models import Session
+
+    conn = _ensure_state_db()
+    sid = 'gw_display_count_regression_001'
+    cleanup_test_sessions.append(sid)
+    base_ts = time.time() - 60
+    rows = [
+        ("user", "Thread question", base_ts + 1),
+        ("assistant", "", base_ts + 2),
+        ("assistant", "", base_ts + 2),
+        ("tool", '{"ok": true}', base_ts + 3),
+        ("assistant", "Thread answer", base_ts + 4),
+    ]
+    raw_db_count = len(rows)
+    try:
+        _insert_gateway_session(
+            conn,
+            session_id=sid,
+            source='discord',
+            title='Discord Thread Count Regression',
+            message_count=raw_db_count,
+            started_at=base_ts,
+        )
+        conn.execute("DELETE FROM messages WHERE session_id = ?", (sid,))
+        for role, content, ts in rows:
+            _insert_message(conn, sid, role, content, ts)
+        conn.execute(
+            "UPDATE sessions SET message_count = ? WHERE id = ?",
+            (raw_db_count, sid),
+        )
+        conn.commit()
+
+        # A stale WebUI sidecar can exist for the same messaging thread. The API
+        # display merge dedupes repeated blank assistant separators, so the
+        # advertised count must match the returned display coordinate space, not
+        # the raw state.db row count.
+        s = Session(
+            session_id=sid,
+            title='Legacy Discord Snapshot',
+            workspace='/tmp/hermes-webui-test',
+            model='openai/gpt-5',
+            messages=[{"role": "user", "content": "Thread question", "timestamp": base_ts + 1}],
+            session_source='messaging',
+            raw_source='discord',
+            source_tag='discord',
+            source_label='Discord',
+        )
+        s.save(touch_updated_at=False)
+
+        post('/api/settings', {'show_cli_sessions': True})
+        data, status = get(f'/api/session?session_id={sid}&messages=1&resolve_model=0&msg_limit=100')
+        assert status == 200, data
+        session = data.get('session', {})
+        msgs = session.get('messages', [])
+        assert msgs[-1].get('content') == 'Thread answer'
+        assert len(msgs) < raw_db_count, "fixture must exercise display dedupe"
+        assert session.get('message_count') == len(msgs)
+    finally:
+        try:
+            _remove_test_sessions(conn, sid)
+            conn.close()
+        except Exception:
+            pass
+        try:
+            post('/api/settings', {'show_cli_sessions': False})
+        except Exception:
+            pass
+
+
 def test_sessions_prefers_state_db_metadata_for_messaging_overlap(cleanup_test_sessions):
     """Sidebar metadata for messaging sessions should come from state.db, not local JSON snapshots."""
     conn = _ensure_state_db()
diff --git a/tests/test_issue2028_compression_anchor_helpers.py b/tests/test_issue2028_compression_anchor_helpers.py
index 1fcb4f6a..d675d2a0 100644
--- a/tests/test_issue2028_compression_anchor_helpers.py
+++ b/tests/test_issue2028_compression_anchor_helpers.py
@@ -4,7 +4,8 @@ Regression coverage for shared compression-anchor visibility helpers (#2028).
 
 from pathlib import Path
 
-from api.compression_anchor import visible_messages_for_anchor
+from api.compression_anchor import is_context_compression_marker, visible_messages_for_anchor
+from api.streaming import _compression_summary_from_messages, _is_context_compression_marker
 
 
 def test_legacy_duplicate_anchor_helpers_are_removed():
@@ -57,3 +58,42 @@ def test_visible_messages_for_anchor_keeps_manual_user_messages_simple():
         [user_tool_metadata, user_attachment, assistant_tool_metadata],
         auto_compression=True,
     ) == [user_tool_metadata, user_attachment, assistant_tool_metadata]
+
+
+def test_context_compression_marker_detection_is_prefix_and_role_scoped():
+    real_marker = {
+        "role": "assistant",
+        "content": "[CONTEXT COMPACTION — REFERENCE ONLY] Earlier turns were compacted.",
+    }
+    preserved_tasks_marker = {
+        "role": "user",
+        "content": "[Your active task list was preserved across context compression] - [ ] follow up",
+    }
+    tool_noise = {
+        "role": "tool",
+        "content": "{\"description\": \"Troubleshoot frequent context compression indicators\"}",
+    }
+    user_discussion = {
+        "role": "user",
+        "content": "Why do I see context compression after every message?",
+    }
+
+    assert is_context_compression_marker(real_marker)
+    assert is_context_compression_marker(preserved_tasks_marker)
+    assert _is_context_compression_marker(real_marker)
+    assert not is_context_compression_marker(tool_noise)
+    assert not is_context_compression_marker(user_discussion)
+
+
+def test_compression_summary_ignores_tool_output_that_mentions_compression():
+    marker = {
+        "role": "assistant",
+        "content": "[CONTEXT COMPACTION — REFERENCE ONLY] Keep this handoff as reference.",
+    }
+    skill_tool_output = {
+        "role": "tool",
+        "content": "{\"name\": \"hermes-webui-operations\", \"content\": \"Troubleshooting frequent context compression indicators...\"}",
+    }
+
+    assert _compression_summary_from_messages([marker, skill_tool_output]) == marker["content"]
+    assert _compression_summary_from_messages([skill_tool_output]) is None