feat: add official Codex skill and harden task execution

Install and update artemis-use with task diagnostics and plugin guidance. Preserve cross-device file receipts, review canonical reports, guard stage transitions and reduce small history summaries. Improve exploration lifecycle, request recovery and browser live connections.

mcp_server/tools/inspect_trace.py

@@ -57,6 +57,8 @@ async def mobile_inspect_trace(
     query: str | None = None,
     step_range: list[int] | None = None,
     max_results: int = 5,
+    offset: int = 0,
+    limit: int = 20,
 ) -> Any:
     """Retrieves execution details of a mobile automation task (running or finished).
 
@@ -64,8 +66,12 @@ async def mobile_inspect_trace(
     both Flash and Pro tasks. Every result includes the assigned `device_serial`.
 
     ### Actions
+    - view_report / view_usage / view_requests / view_logs / view_evidence:
+      bounded read-only report, measured token/cache totals, request phases and IDs,
+      redacted log tails, or source-specific evidence index. offset/limit paginate;
+      start with view_report, then inspect only relevant evidence. No export is generated.
     - **'view_summary'**: High-level execution summary across all steps.
-      Pro: hierarchical task plan with per-step status; Flash: full execution
+      Pro: hierarchical task plan with per-step status; Flash: paginated execution
       chain with each step's reasoning and action.
     - **'search'**: Deterministic keyword / step-range lookup over the full
       stored history (screen descriptions, exact actions and results,
@@ -74,15 +80,15 @@ async def mobile_inspect_trace(
       its step number; a `step_range` also returns that range's per-step
       action ledger. Requires `query` and/or `step_range`.
     - **'view_step_screenshots'**: Local file paths of one step's screenshots:
-      `before_screenshot` (what the agent saw), `after_screenshot` (only set
-      when the action failed/was intercepted, else null), and
+      `before_screenshot` (what the agent saw), `after_screenshot` (when actually captured, otherwise null), and
       `action_overlay_screenshot` (the action visually marked — e.g. red circle
       for taps — key for verifying the agent tapped the right element).
     - **'view_step_details'**: Stored details of one step exactly as the agent's
       own context showed it: what the screen showed, its reasoning, every tool
       call it made (name, arguments, result — e.g. what the explorer or OCR
       reported), the planned action, any safety-net interception and the
-      execution result. Coordinates are normalized [x, y]. Works for Flash and
+      execution result. Coordinate units depend on the tool: Cua uses screenshot
+      pixels; consult the recorded source geometry, never reuse another window. Works for Flash and
       Pro tasks.
 
     Args:
@@ -97,6 +103,17 @@ async def mobile_inspect_trace(
           `"search"`.
         max_results: Maximum `"search"` hits to return (server-side cap applies).
     """
+    from mcp_server.tools.automation import _id, _request
+
+    _id(trace_id)
+    if offset < 0 or not 1 <= limit <= 100:
+        raise ValueError("offset 必须非负，limit 必须在 1–100 之间")
+    if action in {"view_report", "view_usage", "view_requests", "view_logs", "view_evidence"}:
+        return await _request(
+            "GET",
+            f"/api/sessions/{trace_id}/inspection",
+            params={"view": action.removeprefix("view_"), "offset": offset, "limit": limit},
+        )
     project_root = env_utils.get_project_root()
     db_path = os.path.join(trace_store.TRACES_DIR, "data_engine.db")
     if not os.path.exists(db_path):
@@ -135,8 +152,8 @@ async def mobile_inspect_trace(
             session_start_time = session_row["start_time"] if session_row else None
 
             cursor.execute(
-                "SELECT * FROM steps WHERE session_id = ? ORDER BY step_number ASC",
-                (trace_id,),
+                "SELECT * FROM steps WHERE session_id = ? ORDER BY step_number ASC LIMIT ? OFFSET ?",
+                (trace_id, limit, offset),
             )
             rows = cursor.fetchall()
 
@@ -252,7 +269,10 @@ async def mobile_inspect_trace(
                     summary_lines.append(f"### Step {s_num} (at {rel_t}, duration {dur_str})")
                     summary_lines.append(f"- **Thinking / Motivation:** {thought}")
                     summary_lines.append(f"- **Action Taken:** `{act_str}` -> `{res}`\n")
-            return "\n".join(summary_lines)
+            return (
+                "\n".join(summary_lines)[:40000]
+                + f"\n\nPage offset={offset}, limit={limit}; use offset={offset + limit} for more steps."
+            )
 
         try:
             summary_markdown = build_plan_and_history(
@@ -268,7 +288,10 @@ async def mobile_inspect_trace(
                     f"**Session ID:** `{trace_id}` | **Model:** Pro{device_info_str}\n\n"
                     + summary_markdown
                 )
-            return summary_markdown
+            return (
+                summary_markdown[:40000]
+                + f"\n\nPage offset={offset}, limit={limit}; use offset={offset + limit} for more steps."
+            )
         except Exception as e:
             return {
                 "error": "Formatting error",