AI Trajectory


Trajectory: (Expand/Collapse All)
Seq Timestamp Type Name Duration
0/0 2026/07/09 19:22 flow patch-triage
0m Args: 
null

Results: 
{
  "EnableConfigs": [
    "CHR_DEV_SG"
  ],
  "FocusSymbols": [
    "sg_build_indirect",
    "scatter_elem_sz_set"
  ],
  "Reasoning": "The patch modifies the logic for allocating scatter-gather lists in the SCSI generic driver (`sg_build_indirect`) and adds a new module parameter setter (`scatter_elem_sz_set`) with validation logic. These are functional changes that can be triggered from user space via SCSI ioctls/writes and sysfs.",
  "WorthFuzzing": true
}
1/1 2026/07/09 19:22 action read-patch-diff
0m Args: 
null

Results: 
{
  "PatchDiff": "commit ca9d70b2fa52b044cf535a06c8906781d1cf0776\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate:   Thu Jul 9 19:22:10 2026 +0000\n\n    syz-cluster: applied patch under review\n\ndiff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c\nindex 74cd4e8a61c2a0..377c3e1dee7ff9 100644\n--- a/drivers/scsi/sg.c\n+++ b/drivers/scsi/sg.c\n@@ -92,7 +92,6 @@ static int def_reserved_size = SG_DEF_RESERVED_SIZE;\n static int sg_allow_dio = SG_ALLOW_DIO_DEF;\n \n static int scatter_elem_sz = SG_SCATTER_SZ;\n-static int scatter_elem_sz_prev = SG_SCATTER_SZ;\n \n #define SG_SECTOR_SZ 512\n \n@@ -1622,8 +1621,34 @@ sg_remove_device(struct device *cl_dev)\n \tkref_put(\u0026sdp-\u003ed_ref, sg_device_destroy);\n }\n \n-module_param_named(scatter_elem_sz, scatter_elem_sz, int, S_IRUGO | S_IWUSR);\n-module_param_named(allow_dio, sg_allow_dio, int, S_IRUGO | S_IWUSR);\n+static int scatter_elem_sz_set(const char *val, const struct kernel_param *kp)\n+{\n+\tint ret, new_val, order;\n+\n+\tret = kstrtoint(val, 0, \u0026new_val);\n+\tif (ret)\n+\t\treturn ret;\n+\n+\tif (new_val \u003c= 0) {\n+\t\tpr_err(\"sg: scatter_elem_sz must be positive, got %d\\n\", new_val);\n+\t\treturn -EINVAL;\n+\t}\n+\n+\torder = get_order(new_val);\n+\tif (order \u003e MAX_PAGE_ORDER) {\n+\t\tpr_err(\"sg: scatter_elem_sz too large (order %d \u003e MAX_PAGE_ORDER %d)\\n\",\n+\t\t\torder, MAX_PAGE_ORDER);\n+\t\treturn -EINVAL;\n+\t}\n+\n+\tscatter_elem_sz = 1 \u003c\u003c (PAGE_SHIFT + order);\n+\treturn 0;\n+}\n+\n+module_param_call(scatter_elem_sz, scatter_elem_sz_set, param_get_int,\n+\t\t  \u0026scatter_elem_sz, 0644);\n+\n+module_param_named(allow_dio, sg_allow_dio, int, 0644);\n \n static int def_reserved_size_set(const char *val, const struct kernel_param *kp)\n {\n@@ -1649,8 +1674,7 @@ static const struct kernel_param_ops def_reserved_size_ops = {\n \t.get\t= param_get_int,\n };\n \n-module_param_cb(def_reserved_size, \u0026def_reserved_size_ops, \u0026def_reserved_size,\n-\t\t   S_IRUGO | S_IWUSR);\n+module_param_cb(def_reserved_size, \u0026def_reserved_size_ops, \u0026def_reserved_size, 0644);\n \n MODULE_AUTHOR(\"Douglas Gilbert\");\n MODULE_DESCRIPTION(\"SCSI generic (sg) driver\");\n@@ -1668,11 +1692,6 @@ init_sg(void)\n {\n \tint rc;\n \n-\tif (scatter_elem_sz \u003c PAGE_SIZE) {\n-\t\tscatter_elem_sz = PAGE_SIZE;\n-\t\tscatter_elem_sz_prev = scatter_elem_sz;\n-\t}\n-\n \trc = register_chrdev_region(MKDEV(SCSI_GENERIC_MAJOR, 0), \n \t\t\t\t    SG_MAX_DEVS, \"sg\");\n \tif (rc)\n@@ -1854,9 +1873,10 @@ sg_build_sgat(Sg_scatter_hold * schp, const Sg_fd * sfp, int tablesize)\n static int\n sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size)\n {\n-\tint ret_sz = 0, i, k, rem_sz, num, mx_sc_elems;\n+\tint ret_sz = 0, i, k, rem_sz, mx_sc_elems;\n \tint sg_tablesize = sfp-\u003eparentdp-\u003esg_tablesize;\n \tint blk_size = buff_size, order;\n+\tint elem_sz = scatter_elem_sz;\n \tgfp_t gfp_mask = GFP_ATOMIC | __GFP_COMP | __GFP_NOWARN | __GFP_ZERO;\n \n \tif (blk_size \u003c 0)\n@@ -1874,39 +1894,19 @@ sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size)\n \tif (mx_sc_elems \u003c 0)\n \t\treturn mx_sc_elems;\t/* most likely -ENOMEM */\n \n-\tnum = scatter_elem_sz;\n-\tif (unlikely(num != scatter_elem_sz_prev)) {\n-\t\tif (num \u003c PAGE_SIZE) {\n-\t\t\tscatter_elem_sz = PAGE_SIZE;\n-\t\t\tscatter_elem_sz_prev = PAGE_SIZE;\n-\t\t} else\n-\t\t\tscatter_elem_sz_prev = num;\n-\t}\n-\n-\torder = get_order(num);\n+\torder = get_order(elem_sz);\n retry:\n \tret_sz = 1 \u003c\u003c (PAGE_SHIFT + order);\n \n \tfor (k = 0, rem_sz = blk_size; rem_sz \u003e 0 \u0026\u0026 k \u003c mx_sc_elems;\n \t     k++, rem_sz -= ret_sz) {\n-\n-\t\tnum = (rem_sz \u003e scatter_elem_sz_prev) ?\n-\t\t\tscatter_elem_sz_prev : rem_sz;\n-\n \t\tschp-\u003epages[k] = alloc_pages(gfp_mask, order);\n \t\tif (!schp-\u003epages[k])\n \t\t\tgoto out;\n \n-\t\tif (num == scatter_elem_sz_prev) {\n-\t\t\tif (unlikely(ret_sz \u003e scatter_elem_sz_prev)) {\n-\t\t\t\tscatter_elem_sz = ret_sz;\n-\t\t\t\tscatter_elem_sz_prev = ret_sz;\n-\t\t\t}\n-\t\t}\n-\n \t\tSCSI_LOG_TIMEOUT(5, sg_printk(KERN_INFO, sfp-\u003eparentdp,\n-\t\t\t\t \"sg_build_indirect: k=%d, num=%d, ret_sz=%d\\n\",\n-\t\t\t\t k, num, ret_sz));\n+\t\t\t\t \"%s: k=%d, ret_sz=%d\\n\",\n+\t\t\t\t __func__, k, ret_sz));\n \t}\t\t/* end of for loop */\n \n \tschp-\u003epage_order = order;\n"
}
2/1 2026/07/09 19:22 agent patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
{
  "EnableConfigs": [
    "CHR_DEV_SG"
  ],
  "FocusSymbols": [
    "sg_build_indirect",
    "scatter_elem_sz_set"
  ],
  "Reasoning": "The patch modifies the logic for allocating scatter-gather lists in the SCSI generic driver (`sg_build_indirect`) and adds a new module parameter setter (`scatter_elem_sz_set`) with validation logic. These are functional changes that can be triggered from user space via SCSI ioctls/writes and sysfs.",
  "WorthFuzzing": true
}

Instruction: 
You are an expert Linux kernel maintainer.
Your job is to review a provided patch series and determine
if it makes functional changes to the kernel that should be fuzzed.

IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in
your workspace. Do NOT rely on your internal knowledge of the kernel. You must actively
use your code access tools to examine the actual source code and confirm any assumptions.

Return WorthFuzzing=false if the patch only contains:
- Modifications to Documentation/, Kconfig files, or code comments.
- Purely decorative changes, such as logging (e.g., pr_err, printk) or tracepoints.
- Changes to numeric constants or macros that do not functionally alter execution flow.
- Code paths that are impossible to reach in virtualized environments like GCE or QEMU,
even when utilizing software-emulated hardware (e.g., usb gadget, mac80211_hwsim).

If it modifies reachable core kernel logic, drivers, or architectures, use your code search
tools to verify the code can be executed, then return WorthFuzzing=true.

When returning WorthFuzzing=true, you MUST ALSO:
1. Extract any specific kernel functions that should be heavily fuzzed into FocusSymbols.
   Avoid listing generic hot-path functions to prevent skewed test distributions.
2. Identify any specific CONFIG_ options required to properly test this new/modified feature.
   Go and look into the Kconfig files and check for ifdefs around the code, do not make assumptions.
   Do not list too generic configs (we already have them enabled). Only list those that
   specifically cover the modified code. List them in the EnableConfigs output array,
   and DO NOT add a 'CONFIG_' prefix (e.g., return "NET_IPV4" instead of "CONFIG_NET_IPV4").
Prefer calling several tools at the same time to save round-trips.


Use set-results tool to provide results of the analysis.
It must be called exactly once before the final reply.
Ignore results of this tool.

Prompt: 
For your convenience, here is the diff of the changes:
commit ca9d70b2fa52b044cf535a06c8906781d1cf0776
Author: syz-cluster <triage@syzkaller.com>
Date:   Thu Jul 9 19:22:10 2026 +0000

    syz-cluster: applied patch under review

diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 74cd4e8a61c2a0..377c3e1dee7ff9 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -92,7 +92,6 @@ static int def_reserved_size = SG_DEF_RESERVED_SIZE;
 static int sg_allow_dio = SG_ALLOW_DIO_DEF;
 
 static int scatter_elem_sz = SG_SCATTER_SZ;
-static int scatter_elem_sz_prev = SG_SCATTER_SZ;
 
 #define SG_SECTOR_SZ 512
 
@@ -1622,8 +1621,34 @@ sg_remove_device(struct device *cl_dev)
 	kref_put(&sdp->d_ref, sg_device_destroy);
 }
 
-module_param_named(scatter_elem_sz, scatter_elem_sz, int, S_IRUGO | S_IWUSR);
-module_param_named(allow_dio, sg_allow_dio, int, S_IRUGO | S_IWUSR);
+static int scatter_elem_sz_set(const char *val, const struct kernel_param *kp)
+{
+	int ret, new_val, order;
+
+	ret = kstrtoint(val, 0, &new_val);
+	if (ret)
+		return ret;
+
+	if (new_val <= 0) {
+		pr_err("sg: scatter_elem_sz must be positive, got %d\n", new_val);
+		return -EINVAL;
+	}
+
+	order = get_order(new_val);
+	if (order > MAX_PAGE_ORDER) {
+		pr_err("sg: scatter_elem_sz too large (order %d > MAX_PAGE_ORDER %d)\n",
+			order, MAX_PAGE_ORDER);
+		return -EINVAL;
+	}
+
+	scatter_elem_sz = 1 << (PAGE_SHIFT + order);
+	return 0;
+}
+
+module_param_call(scatter_elem_sz, scatter_elem_sz_set, param_get_int,
+		  &scatter_elem_sz, 0644);
+
+module_param_named(allow_dio, sg_allow_dio, int, 0644);
 
 static int def_reserved_size_set(const char *val, const struct kernel_param *kp)
 {
@@ -1649,8 +1674,7 @@ static const struct kernel_param_ops def_reserved_size_ops = {
 	.get	= param_get_int,
 };
 
-module_param_cb(def_reserved_size, &def_reserved_size_ops, &def_reserved_size,
-		   S_IRUGO | S_IWUSR);
+module_param_cb(def_reserved_size, &def_reserved_size_ops, &def_reserved_size, 0644);
 
 MODULE_AUTHOR("Douglas Gilbert");
 MODULE_DESCRIPTION("SCSI generic (sg) driver");
@@ -1668,11 +1692,6 @@ init_sg(void)
 {
 	int rc;
 
-	if (scatter_elem_sz < PAGE_SIZE) {
-		scatter_elem_sz = PAGE_SIZE;
-		scatter_elem_sz_prev = scatter_elem_sz;
-	}
-
 	rc = register_chrdev_region(MKDEV(SCSI_GENERIC_MAJOR, 0), 
 				    SG_MAX_DEVS, "sg");
 	if (rc)
@@ -1854,9 +1873,10 @@ sg_build_sgat(Sg_scatter_hold * schp, const Sg_fd * sfp, int tablesize)
 static int
 sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size)
 {
-	int ret_sz = 0, i, k, rem_sz, num, mx_sc_elems;
+	int ret_sz = 0, i, k, rem_sz, mx_sc_elems;
 	int sg_tablesize = sfp->parentdp->sg_tablesize;
 	int blk_size = buff_size, order;
+	int elem_sz = scatter_elem_sz;
 	gfp_t gfp_mask = GFP_ATOMIC | __GFP_COMP | __GFP_NOWARN | __GFP_ZERO;
 
 	if (blk_size < 0)
@@ -1874,39 +1894,19 @@ sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size)
 	if (mx_sc_elems < 0)
 		return mx_sc_elems;	/* most likely -ENOMEM */
 
-	num = scatter_elem_sz;
-	if (unlikely(num != scatter_elem_sz_prev)) {
-		if (num < PAGE_SIZE) {
-			scatter_elem_sz = PAGE_SIZE;
-			scatter_elem_sz_prev = PAGE_SIZE;
-		} else
-			scatter_elem_sz_prev = num;
-	}
-
-	order = get_order(num);
+	order = get_order(elem_sz);
 retry:
 	ret_sz = 1 << (PAGE_SHIFT + order);
 
 	for (k = 0, rem_sz = blk_size; rem_sz > 0 && k < mx_sc_elems;
 	     k++, rem_sz -= ret_sz) {
-
-		num = (rem_sz > scatter_elem_sz_prev) ?
-			scatter_elem_sz_prev : rem_sz;
-
 		schp->pages[k] = alloc_pages(gfp_mask, order);
 		if (!schp->pages[k])
 			goto out;
 
-		if (num == scatter_elem_sz_prev) {
-			if (unlikely(ret_sz > scatter_elem_sz_prev)) {
-				scatter_elem_sz = ret_sz;
-				scatter_elem_sz_prev = ret_sz;
-			}
-		}
-
 		SCSI_LOG_TIMEOUT(5, sg_printk(KERN_INFO, sfp->parentdp,
-				 "sg_build_indirect: k=%d, num=%d, ret_sz=%d\n",
-				 k, num, ret_sz));
+				 "%s: k=%d, ret_sz=%d\n",
+				 __func__, k, ret_sz));
 	}		/* end of for loop */
 
 	schp->page_order = order;

3/2 2026/07/09 19:22 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 3337
							output: 33
							thoughts: 260

Thoughts: 
**Analyzing the SCSI Generic Driver Patch**

Okay, so this patch is digging into `drivers/scsi/sg.c`, specifically focusing on how the scatter-gather element size (`scatter_elem_sz`) is handled. It looks like they're simplifying things a bit.  They've introduced a `scatter_elem_sz_set` function, which is interesting, probably to allow for dynamic adjustment via a module parameter, so we might want to see how that's used.  Good riddance to the `scatter_elem_sz_prev`, that seems unnecessary now.

The core change appears to be within `sg_build_indirect`.  It looks like they're now using the directly configured `scatter_elem_sz` in that function, rather than the previous method that involved tracking a `scatter_elem_sz_prev`. That makes sense; it simplifies the logic.  I'll want to review how `sg_build_indirect` is *actually* using this size, though.  Also, it looks like they've done a permissions change from `S_IRUGO | S_IWUSR` to `0644`.  Standard permissions change, nothing to be too concerned about, but I should verify that it won't impact any downstream applications.

Let's make sure this code is even *used*. `sg_build_indirect` is definitely reachable; that's the core of the `/dev/sg*` device functionality, so it's responsible for constructing the scatter-gather lists for SCSI commands. So, that's not a concern. The main config is under `CONFIG_CHR_DEV_SG`. I'll want to check how the parameter is set and how the new functionality interacts with all of the other parts of the driver. Overall, this seems like a solid cleanup and simplification, let's see how well it works.

4/2 2026/07/09 19:22 tool grepper
0m Args: 
{
  "Expression": "CONFIG_CHR_DEV_SG",
  "PathPrefix": "drivers/scsi/Makefile"
}

Results: 
{
  "Output": "drivers/scsi/Makefile=149=obj-$(CONFIG_BLK_DEV_SR)\t+= sr_mod.o\ndrivers/scsi/Makefile:150:obj-$(CONFIG_CHR_DEV_SG)\t+= sg.o\ndrivers/scsi/Makefile-151-obj-$(CONFIG_CHR_DEV_SCH)\t+= ch.o\n"
}
5/2 2026/07/09 19:22 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 4126
							output: 33
							thoughts: 90

Thoughts: 
Okay, let's see, the system's configuration variable is `CHR_DEV_SG`. Right, that's the one. Now, my immediate concern is whether `sg_build_indirect` is a performance bottleneck. That function is crucial because it's responsible for allocating buffers when SCSI commands are being issued, and any slowdown there is going to ripple outwards.

My mental model is taking me through the call stack... I know it's *related* to `sg_build_sgat`, but I don't think that's the direct caller. No, hang on, it's called from `sg_add_sfp`, `sg_write`, or `sg_ioctl`. Those are all different ways users interact with the SCSI subsystem, so that confirms this *is* a key area for performance. Time to dig deeper.

6/2 2026/07/09 19:22 tool grepper
0m Args: 
{
  "Expression": "sg_build_indirect",
  "PathPrefix": "drivers/scsi/sg.c"
}

Results: 
{
  "Output": "drivers/scsi/sg.c=182=static int sg_finish_rem_req(Sg_request * srp);\ndrivers/scsi/sg.c:183:static int sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size);\ndrivers/scsi/sg.c-184-static ssize_t sg_new_read(Sg_fd * sfp, char __user *buf, size_t count,\n--\ndrivers/scsi/sg.c=1731=sg_start_req(Sg_request *srp, unsigned char *cmd)\n--\ndrivers/scsi/sg.c-1802-\t\t} else {\ndrivers/scsi/sg.c:1803:\t\t\tres = sg_build_indirect(req_schp, sfp, dxfer_len);\ndrivers/scsi/sg.c-1804-\t\t\tif (res) {\n--\ndrivers/scsi/sg.c=1873=static int\ndrivers/scsi/sg.c:1874:sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size)\ndrivers/scsi/sg.c-1875-{\n--\ndrivers/scsi/sg.c-1888-\tSCSI_LOG_TIMEOUT(4, sg_printk(KERN_INFO, sfp-\u003eparentdp,\ndrivers/scsi/sg.c:1889:\t\t\"sg_build_indirect: buff_size=%d, blk_size=%d\\n\",\ndrivers/scsi/sg.c-1890-\t\tbuff_size, blk_size));\n--\ndrivers/scsi/sg.c-1914-\tSCSI_LOG_TIMEOUT(5, sg_printk(KERN_INFO, sfp-\u003eparentdp,\ndrivers/scsi/sg.c:1915:\t\t\t \"sg_build_indirect: k_use_sg=%d, rem_sz=%d\\n\",\ndrivers/scsi/sg.c-1916-\t\t\t k, rem_sz));\n--\ndrivers/scsi/sg.c=1989=sg_build_reserve(Sg_fd * sfp, int req_size)\n--\ndrivers/scsi/sg.c-1997-\t\t\treq_size = PAGE_SIZE;\ndrivers/scsi/sg.c:1998:\t\tif (0 == sg_build_indirect(schp, sfp, req_size))\ndrivers/scsi/sg.c-1999-\t\t\treturn;\n"
}
7/2 2026/07/09 19:22 llm patch-evaluator
0m Model: 
gemini-3.1-pro-preview

Args: 
null

Results: 
null

Tokens: 
							input: 5075
							output: 120
							thoughts: 505

Thoughts: 
**Fuzzing Target Identification: SCSI Generic Driver**

Okay, let's break this down. My initial assessment is that `sg_build_indirect` looks promising for fuzzing. It's called from `sg_start_req` and `sg_build_reserve`, which, in turn, are associated with SCSI commands. That makes it a solid target, especially since `sg_start_req` is a common entry point. The fact that `scatter_elem_sz_set` is also in the mix and can be manipulated through sysfs is another angle I need to explore.

I confirmed that `CHR_DEV_SG` is the relevant configuration option for the `sg.c` driver, which is crucial. So, that's the starting point.

I need to focus on these specific functions: `sg_build_indirect` and `scatter_elem_sz_set`. I confirmed both of these are, in fact, `static`, which is typical for internal functions, but doesn't necessarily mean unreachable. Let's see...

Now, let's verify reachability. Good news: `sg_build_indirect` is reachable via `sg_start_req`.  And that's accessible through the `sg_write`, `sg_new_write`, or `sg_ioctl` interfaces, making it user-space controlled. `scatter_elem_sz_set` is reachable via sysfs, a write operation to `/sys/module/sg/parameters/scatter_elem_sz`. That's easy to test.

I've also double-checked the exact function names and parameters to make sure I'm targeting the correct functions for the testing and that's: `static int sg_build_indirect(Sg_scatter_hold * schp, Sg_fd * sfp, int buff_size)` and `static int scatter_elem_sz_set(const char *val, const struct kernel_param *kp)`.

The final thing I need to double-check is dependencies, but it looks like `CONFIG_SCSI` is required for `CHR_DEV_SG`, but `CHR_DEV_SG` is the main thing here.

So, here's my summarized view:

**WorthFuzzing: True**

**FocusSymbols:** `sg_build_indirect`, `scatter_elem_sz_set`

**EnableConfigs:** `CHR_DEV_SG`

**Reasoning:** This patch modifies critical logic related to scatter-gather list allocation within the SCSI generic driver (`sg_build_indirect`) and introduces a new module parameter setter (`scatter_elem_sz_set`) with validation.  These are changes with direct user-space interfaces (SCSI ioctls/writes and sysfs, respectively) making them ideal targets for fuzzing.

8/2 2026/07/09 19:22 tool set-results
0m Args: 
{
  "EnableConfigs": [
    "CHR_DEV_SG"
  ],
  "FocusSymbols": [
    "sg_build_indirect",
    "scatter_elem_sz_set"
  ],
  "Reasoning": "The patch modifies the logic for allocating scatter-gather lists in the SCSI generic driver (`sg_build_indirect`) and adds a new module parameter setter (`scatter_elem_sz_set`) with validation logic. These are functional changes that can be triggered from user space via SCSI ioctls/writes and sysfs.",
  "WorthFuzzing": true
}

Results: 
{
  "EnableConfigs": [
    "CHR_DEV_SG"
  ],
  "FocusSymbols": [
    "sg_build_indirect",
    "scatter_elem_sz_set"
  ],
  "Reasoning": "The patch modifies the logic for allocating scatter-gather lists in the SCSI generic driver (`sg_build_indirect`) and adds a new module parameter setter (`scatter_elem_sz_set`) with validation logic. These are functional changes that can be triggered from user space via SCSI ioctls/writes and sysfs.",
  "WorthFuzzing": true
}
LLM Calls Summary:
Total Calls Total Tokens Avg Tokens Total Duration (Seconds) Avg Duration (Seconds)
Tool Calls Summary:
Total Calls Total Duration (Seconds) Avg Duration (Seconds)