fix(anthropic): capture server-side tool usage metrics#192

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Merged
Abhijeet Prasad (AbhiPrasad) merged 1 commit into from
Apr 3, 2026
Merged

fix(anthropic): capture server-side tool usage metrics #192

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9 changes: 2 additions & 7 deletions py/src/braintrust/integrations/anthropic/_utils.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -27,11 +27,6 @@ def __getattr__(self, name: str) -> Any:
("ephemeral_1h_input_tokens", "prompt_cache_creation_ephemeral_1h_tokens"),
)

_ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS = (
("web_search_requests", "server_tool_use_web_search_requests"),
("web_fetch_requests", "server_tool_use_web_fetch_requests"),
)

_ANTHROPIC_USAGE_METADATA_FIELDS = frozenset(
{
"service_tier",
Expand DownExpand Up@@ -95,8 +90,8 @@ def extract_anthropic_usage(usage: Any) -> tuple[dict[str, float], dict[str, Any

server_tool_use = _try_to_dict(usage.get("server_tool_use"))
if server_tool_use is not None:
for source_name, metric_name in _ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS:
_set_numeric_metric(metrics, metric_name, server_tool_use.get(source_name))
for source_name, value in server_tool_use.items():
_set_numeric_metric(metrics, f"server_tool_use_{source_name}", value)

if "prompt_cache_creation_tokens" not in metrics and cache_creation_breakdown:
metrics["prompt_cache_creation_tokens"] = sum(cache_creation_breakdown)
Expand Down
34 changes: 34 additions & 0 deletions py/src/braintrust/integrations/anthropic/test_anthropic.py
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -53,6 +53,10 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
"output_tokens": 7,
"cache_read_input_tokens": 0,
"cache_creation_input_tokens": 0,
"server_tool_use": {
"web_search_requests": 2,
"web_fetch_requests": 1,
},
},
)

Expand All@@ -71,13 +75,43 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
"completion_tokens": 7.0,
"prompt_cached_tokens": 0.0,
"prompt_cache_creation_tokens": 0.0,
"server_tool_use_web_search_requests": 2.0,
"server_tool_use_web_fetch_requests": 1.0,
"tokens": 18.0,
"time_to_first_token": 0.123,
},
metadata={},
)


def test_extract_anthropic_usage_includes_server_tool_use_metrics_from_objects():
usage = SimpleNamespace(
input_tokens=11,
output_tokens=7,
cache_read_input_tokens=3,
cache_creation_input_tokens=2,
server_tool_use=SimpleNamespace(
web_search_requests=2,
web_fetch_requests=1,
code_execution_requests=4,
),
)

metrics, metadata = extract_anthropic_usage(usage)

assert metrics == {
"prompt_tokens": 16.0,
"completion_tokens": 7.0,
"prompt_cached_tokens": 3.0,
"prompt_cache_creation_tokens": 2.0,
"server_tool_use_web_search_requests": 2.0,
"server_tool_use_web_fetch_requests": 1.0,
"server_tool_use_code_execution_requests": 4.0,
"tokens": 23.0,
}
assert metadata == {}


@pytest.mark.vcr
def test_anthropic_messages_create_stream_true(memory_logger):
assert not memory_logger.pop()
Expand Down
Loading
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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fix(anthropic): capture server-side tool usage metrics#192

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to your account

 Merged

Abhijeet Prasad (AbhiPrasad)
merged 1 commit into

from

Apr 3, 2026
 Merged


fix(anthropic): capture server-side tool usage metrics
#192
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9 changes: 2 additions & 7 deletions
py/src/braintrust/integrations/anthropic/_utils.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -27,11 +27,6 @@ def __getattr__(self, name: str) -> Any:
 ("ephemeral_1h_input_tokens", "prompt_cache_creation_ephemeral_1h_tokens"),
)

_ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS = (
 ("web_search_requests", "server_tool_use_web_search_requests"),
 ("web_fetch_requests", "server_tool_use_web_fetch_requests"),
)

_ANTHROPIC_USAGE_METADATA_FIELDS = frozenset(
 {
 "service_tier",
Expand DownExpand Up@@ -95,8 +90,8 @@ def extract_anthropic_usage(usage: Any) -> tuple[dict[str, float], dict[str, Any

 server_tool_use = _try_to_dict(usage.get("server_tool_use"))
 if server_tool_use is not None:
 for source_name, metric_name in _ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS:
 _set_numeric_metric(metrics, metric_name, server_tool_use.get(source_name))
 for source_name, value in server_tool_use.items():
 _set_numeric_metric(metrics, f"server_tool_use_{source_name}", value)

 if "prompt_cache_creation_tokens" not in metrics and cache_creation_breakdown:
 metrics["prompt_cache_creation_tokens"] = sum(cache_creation_breakdown)
Expand Down

34 changes: 34 additions & 0 deletions
py/src/braintrust/integrations/anthropic/test_anthropic.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -53,6 +53,10 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "output_tokens": 7,
 "cache_read_input_tokens": 0,
 "cache_creation_input_tokens": 0,
 "server_tool_use": {
 "web_search_requests": 2,
 "web_fetch_requests": 1,
 },
 },
 )

Expand All@@ -71,13 +75,43 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 0.0,
 "prompt_cache_creation_tokens": 0.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "tokens": 18.0,
 "time_to_first_token": 0.123,
 },
 metadata={},
 )


def test_extract_anthropic_usage_includes_server_tool_use_metrics_from_objects():
 usage = SimpleNamespace(
 input_tokens=11,
 output_tokens=7,
 cache_read_input_tokens=3,
 cache_creation_input_tokens=2,
 server_tool_use=SimpleNamespace(
 web_search_requests=2,
 web_fetch_requests=1,
 code_execution_requests=4,
 ),
 )

 metrics, metadata = extract_anthropic_usage(usage)

 assert metrics == {
 "prompt_tokens": 16.0,
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 3.0,
 "prompt_cache_creation_tokens": 2.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "server_tool_use_code_execution_requests": 4.0,
 "tokens": 23.0,
 }
 assert metadata == {}


@pytest.mark.vcr
def test_anthropic_messages_create_stream_true(memory_logger):
 assert not memory_logger.pop()
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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fix(anthropic): capture server-side tool usage metrics#192

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to your account

 Merged

Abhijeet Prasad (AbhiPrasad)
merged 1 commit into

from

Apr 3, 2026
 Merged


fix(anthropic): capture server-side tool usage metrics
#192
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9 changes: 2 additions & 7 deletions
py/src/braintrust/integrations/anthropic/_utils.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -27,11 +27,6 @@ def __getattr__(self, name: str) -> Any:
 ("ephemeral_1h_input_tokens", "prompt_cache_creation_ephemeral_1h_tokens"),
)

_ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS = (
 ("web_search_requests", "server_tool_use_web_search_requests"),
 ("web_fetch_requests", "server_tool_use_web_fetch_requests"),
)

_ANTHROPIC_USAGE_METADATA_FIELDS = frozenset(
 {
 "service_tier",
Expand DownExpand Up@@ -95,8 +90,8 @@ def extract_anthropic_usage(usage: Any) -> tuple[dict[str, float], dict[str, Any

 server_tool_use = _try_to_dict(usage.get("server_tool_use"))
 if server_tool_use is not None:
 for source_name, metric_name in _ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS:
 _set_numeric_metric(metrics, metric_name, server_tool_use.get(source_name))
 for source_name, value in server_tool_use.items():
 _set_numeric_metric(metrics, f"server_tool_use_{source_name}", value)

 if "prompt_cache_creation_tokens" not in metrics and cache_creation_breakdown:
 metrics["prompt_cache_creation_tokens"] = sum(cache_creation_breakdown)
Expand Down

34 changes: 34 additions & 0 deletions
py/src/braintrust/integrations/anthropic/test_anthropic.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -53,6 +53,10 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "output_tokens": 7,
 "cache_read_input_tokens": 0,
 "cache_creation_input_tokens": 0,
 "server_tool_use": {
 "web_search_requests": 2,
 "web_fetch_requests": 1,
 },
 },
 )

Expand All@@ -71,13 +75,43 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 0.0,
 "prompt_cache_creation_tokens": 0.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "tokens": 18.0,
 "time_to_first_token": 0.123,
 },
 metadata={},
 )


def test_extract_anthropic_usage_includes_server_tool_use_metrics_from_objects():
 usage = SimpleNamespace(
 input_tokens=11,
 output_tokens=7,
 cache_read_input_tokens=3,
 cache_creation_input_tokens=2,
 server_tool_use=SimpleNamespace(
 web_search_requests=2,
 web_fetch_requests=1,
 code_execution_requests=4,
 ),
 )

 metrics, metadata = extract_anthropic_usage(usage)

 assert metrics == {
 "prompt_tokens": 16.0,
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 3.0,
 "prompt_cache_creation_tokens": 2.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "server_tool_use_code_execution_requests": 4.0,
 "tokens": 23.0,
 }
 assert metadata == {}


@pytest.mark.vcr
def test_anthropic_messages_create_stream_true(memory_logger):
 assert not memory_logger.pop()
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(anthropic): capture server-side tool usage metrics#192

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to your account

 Merged

Abhijeet Prasad (AbhiPrasad)
merged 1 commit into

from

Apr 3, 2026
 Merged


fix(anthropic): capture server-side tool usage metrics
#192
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9 changes: 2 additions & 7 deletions
py/src/braintrust/integrations/anthropic/_utils.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -27,11 +27,6 @@ def __getattr__(self, name: str) -> Any:
 ("ephemeral_1h_input_tokens", "prompt_cache_creation_ephemeral_1h_tokens"),
)

_ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS = (
 ("web_search_requests", "server_tool_use_web_search_requests"),
 ("web_fetch_requests", "server_tool_use_web_fetch_requests"),
)

_ANTHROPIC_USAGE_METADATA_FIELDS = frozenset(
 {
 "service_tier",
Expand DownExpand Up@@ -95,8 +90,8 @@ def extract_anthropic_usage(usage: Any) -> tuple[dict[str, float], dict[str, Any

 server_tool_use = _try_to_dict(usage.get("server_tool_use"))
 if server_tool_use is not None:
 for source_name, metric_name in _ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS:
 _set_numeric_metric(metrics, metric_name, server_tool_use.get(source_name))
 for source_name, value in server_tool_use.items():
 _set_numeric_metric(metrics, f"server_tool_use_{source_name}", value)

 if "prompt_cache_creation_tokens" not in metrics and cache_creation_breakdown:
 metrics["prompt_cache_creation_tokens"] = sum(cache_creation_breakdown)
Expand Down

34 changes: 34 additions & 0 deletions
py/src/braintrust/integrations/anthropic/test_anthropic.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -53,6 +53,10 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "output_tokens": 7,
 "cache_read_input_tokens": 0,
 "cache_creation_input_tokens": 0,
 "server_tool_use": {
 "web_search_requests": 2,
 "web_fetch_requests": 1,
 },
 },
 )

Expand All@@ -71,13 +75,43 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 0.0,
 "prompt_cache_creation_tokens": 0.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "tokens": 18.0,
 "time_to_first_token": 0.123,
 },
 metadata={},
 )


def test_extract_anthropic_usage_includes_server_tool_use_metrics_from_objects():
 usage = SimpleNamespace(
 input_tokens=11,
 output_tokens=7,
 cache_read_input_tokens=3,
 cache_creation_input_tokens=2,
 server_tool_use=SimpleNamespace(
 web_search_requests=2,
 web_fetch_requests=1,
 code_execution_requests=4,
 ),
 )

 metrics, metadata = extract_anthropic_usage(usage)

 assert metrics == {
 "prompt_tokens": 16.0,
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 3.0,
 "prompt_cache_creation_tokens": 2.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "server_tool_use_code_execution_requests": 4.0,
 "tokens": 23.0,
 }
 assert metadata == {}


@pytest.mark.vcr
def test_anthropic_messages_create_stream_true(memory_logger):
 assert not memory_logger.pop()
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
fix(anthropic): capture server-side tool usage metrics#192

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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By clicking “Sign up for GitHub”, you agree to our terms of service and
privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

Abhijeet Prasad (AbhiPrasad)
merged 1 commit into

from

Apr 3, 2026
 Merged


fix(anthropic): capture server-side tool usage metrics
#192
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9 changes: 2 additions & 7 deletions
py/src/braintrust/integrations/anthropic/_utils.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -27,11 +27,6 @@ def __getattr__(self, name: str) -> Any:
 ("ephemeral_1h_input_tokens", "prompt_cache_creation_ephemeral_1h_tokens"),
)

_ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS = (
 ("web_search_requests", "server_tool_use_web_search_requests"),
 ("web_fetch_requests", "server_tool_use_web_fetch_requests"),
)

_ANTHROPIC_USAGE_METADATA_FIELDS = frozenset(
 {
 "service_tier",
Expand DownExpand Up@@ -95,8 +90,8 @@ def extract_anthropic_usage(usage: Any) -> tuple[dict[str, float], dict[str, Any

 server_tool_use = _try_to_dict(usage.get("server_tool_use"))
 if server_tool_use is not None:
 for source_name, metric_name in _ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS:
 _set_numeric_metric(metrics, metric_name, server_tool_use.get(source_name))
 for source_name, value in server_tool_use.items():
 _set_numeric_metric(metrics, f"server_tool_use_{source_name}", value)

 if "prompt_cache_creation_tokens" not in metrics and cache_creation_breakdown:
 metrics["prompt_cache_creation_tokens"] = sum(cache_creation_breakdown)
Expand Down

34 changes: 34 additions & 0 deletions
py/src/braintrust/integrations/anthropic/test_anthropic.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -53,6 +53,10 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "output_tokens": 7,
 "cache_read_input_tokens": 0,
 "cache_creation_input_tokens": 0,
 "server_tool_use": {
 "web_search_requests": 2,
 "web_fetch_requests": 1,
 },
 },
 )

Expand All@@ -71,13 +75,43 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 0.0,
 "prompt_cache_creation_tokens": 0.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "tokens": 18.0,
 "time_to_first_token": 0.123,
 },
 metadata={},
 )


def test_extract_anthropic_usage_includes_server_tool_use_metrics_from_objects():
 usage = SimpleNamespace(
 input_tokens=11,
 output_tokens=7,
 cache_read_input_tokens=3,
 cache_creation_input_tokens=2,
 server_tool_use=SimpleNamespace(
 web_search_requests=2,
 web_fetch_requests=1,
 code_execution_requests=4,
 ),
 )

 metrics, metadata = extract_anthropic_usage(usage)

 assert metrics == {
 "prompt_tokens": 16.0,
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 3.0,
 "prompt_cache_creation_tokens": 2.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "server_tool_use_code_execution_requests": 4.0,
 "tokens": 23.0,
 }
 assert metadata == {}


@pytest.mark.vcr
def test_anthropic_messages_create_stream_true(memory_logger):
 assert not memory_logger.pop()
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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fix(anthropic): capture server-side tool usage metrics#192

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 Merged

Abhijeet Prasad (AbhiPrasad)
merged 1 commit into

from

Apr 3, 2026
 Merged


fix(anthropic): capture server-side tool usage metrics
#192
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9 changes: 2 additions & 7 deletions
py/src/braintrust/integrations/anthropic/_utils.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -27,11 +27,6 @@ def __getattr__(self, name: str) -> Any:
 ("ephemeral_1h_input_tokens", "prompt_cache_creation_ephemeral_1h_tokens"),
)

_ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS = (
 ("web_search_requests", "server_tool_use_web_search_requests"),
 ("web_fetch_requests", "server_tool_use_web_fetch_requests"),
)

_ANTHROPIC_USAGE_METADATA_FIELDS = frozenset(
 {
 "service_tier",
Expand DownExpand Up@@ -95,8 +90,8 @@ def extract_anthropic_usage(usage: Any) -> tuple[dict[str, float], dict[str, Any

 server_tool_use = _try_to_dict(usage.get("server_tool_use"))
 if server_tool_use is not None:
 for source_name, metric_name in _ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS:
 _set_numeric_metric(metrics, metric_name, server_tool_use.get(source_name))
 for source_name, value in server_tool_use.items():
 _set_numeric_metric(metrics, f"server_tool_use_{source_name}", value)

 if "prompt_cache_creation_tokens" not in metrics and cache_creation_breakdown:
 metrics["prompt_cache_creation_tokens"] = sum(cache_creation_breakdown)
Expand Down

34 changes: 34 additions & 0 deletions
py/src/braintrust/integrations/anthropic/test_anthropic.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -53,6 +53,10 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "output_tokens": 7,
 "cache_read_input_tokens": 0,
 "cache_creation_input_tokens": 0,
 "server_tool_use": {
 "web_search_requests": 2,
 "web_fetch_requests": 1,
 },
 },
 )

Expand All@@ -71,13 +75,43 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 0.0,
 "prompt_cache_creation_tokens": 0.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "tokens": 18.0,
 "time_to_first_token": 0.123,
 },
 metadata={},
 )


def test_extract_anthropic_usage_includes_server_tool_use_metrics_from_objects():
 usage = SimpleNamespace(
 input_tokens=11,
 output_tokens=7,
 cache_read_input_tokens=3,
 cache_creation_input_tokens=2,
 server_tool_use=SimpleNamespace(
 web_search_requests=2,
 web_fetch_requests=1,
 code_execution_requests=4,
 ),
 )

 metrics, metadata = extract_anthropic_usage(usage)

 assert metrics == {
 "prompt_tokens": 16.0,
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 3.0,
 "prompt_cache_creation_tokens": 2.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "server_tool_use_code_execution_requests": 4.0,
 "tokens": 23.0,
 }
 assert metadata == {}


@pytest.mark.vcr
def test_anthropic_messages_create_stream_true(memory_logger):
 assert not memory_logger.pop()
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(anthropic): capture server-side tool usage metrics#192

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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privacy statement. We’ll occasionally send you account related emails.

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to your account

 Merged

Abhijeet Prasad (AbhiPrasad)
merged 1 commit into

from

Apr 3, 2026
 Merged


fix(anthropic): capture server-side tool usage metrics
#192
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9 changes: 2 additions & 7 deletions
py/src/braintrust/integrations/anthropic/_utils.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -27,11 +27,6 @@ def __getattr__(self, name: str) -> Any:
 ("ephemeral_1h_input_tokens", "prompt_cache_creation_ephemeral_1h_tokens"),
)

_ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS = (
 ("web_search_requests", "server_tool_use_web_search_requests"),
 ("web_fetch_requests", "server_tool_use_web_fetch_requests"),
)

_ANTHROPIC_USAGE_METADATA_FIELDS = frozenset(
 {
 "service_tier",
Expand DownExpand Up@@ -95,8 +90,8 @@ def extract_anthropic_usage(usage: Any) -> tuple[dict[str, float], dict[str, Any

 server_tool_use = _try_to_dict(usage.get("server_tool_use"))
 if server_tool_use is not None:
 for source_name, metric_name in _ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS:
 _set_numeric_metric(metrics, metric_name, server_tool_use.get(source_name))
 for source_name, value in server_tool_use.items():
 _set_numeric_metric(metrics, f"server_tool_use_{source_name}", value)

 if "prompt_cache_creation_tokens" not in metrics and cache_creation_breakdown:
 metrics["prompt_cache_creation_tokens"] = sum(cache_creation_breakdown)
Expand Down

34 changes: 34 additions & 0 deletions
py/src/braintrust/integrations/anthropic/test_anthropic.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -53,6 +53,10 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "output_tokens": 7,
 "cache_read_input_tokens": 0,
 "cache_creation_input_tokens": 0,
 "server_tool_use": {
 "web_search_requests": 2,
 "web_fetch_requests": 1,
 },
 },
 )

Expand All@@ -71,13 +75,43 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 0.0,
 "prompt_cache_creation_tokens": 0.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "tokens": 18.0,
 "time_to_first_token": 0.123,
 },
 metadata={},
 )


def test_extract_anthropic_usage_includes_server_tool_use_metrics_from_objects():
 usage = SimpleNamespace(
 input_tokens=11,
 output_tokens=7,
 cache_read_input_tokens=3,
 cache_creation_input_tokens=2,
 server_tool_use=SimpleNamespace(
 web_search_requests=2,
 web_fetch_requests=1,
 code_execution_requests=4,
 ),
 )

 metrics, metadata = extract_anthropic_usage(usage)

 assert metrics == {
 "prompt_tokens": 16.0,
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 3.0,
 "prompt_cache_creation_tokens": 2.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "server_tool_use_code_execution_requests": 4.0,
 "tokens": 23.0,
 }
 assert metadata == {}


@pytest.mark.vcr
def test_anthropic_messages_create_stream_true(memory_logger):
 assert not memory_logger.pop()
Expand Down
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
fix(anthropic): capture server-side tool usage metrics#192

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Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

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privacy statement. We’ll occasionally send you account related emails.

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 Merged

Abhijeet Prasad (AbhiPrasad)
merged 1 commit into

from

Apr 3, 2026
 Merged


fix(anthropic): capture server-side tool usage metrics
#192
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9 changes: 2 additions & 7 deletions
py/src/braintrust/integrations/anthropic/_utils.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -27,11 +27,6 @@ def __getattr__(self, name: str) -> Any:
 ("ephemeral_1h_input_tokens", "prompt_cache_creation_ephemeral_1h_tokens"),
)

_ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS = (
 ("web_search_requests", "server_tool_use_web_search_requests"),
 ("web_fetch_requests", "server_tool_use_web_fetch_requests"),
)

_ANTHROPIC_USAGE_METADATA_FIELDS = frozenset(
 {
 "service_tier",
Expand DownExpand Up@@ -95,8 +90,8 @@ def extract_anthropic_usage(usage: Any) -> tuple[dict[str, float], dict[str, Any

 server_tool_use = _try_to_dict(usage.get("server_tool_use"))
 if server_tool_use is not None:
 for source_name, metric_name in _ANTHROPIC_SERVER_TOOL_USE_METRIC_FIELDS:
 _set_numeric_metric(metrics, metric_name, server_tool_use.get(source_name))
 for source_name, value in server_tool_use.items():
 _set_numeric_metric(metrics, f"server_tool_use_{source_name}", value)

 if "prompt_cache_creation_tokens" not in metrics and cache_creation_breakdown:
 metrics["prompt_cache_creation_tokens"] = sum(cache_creation_breakdown)
Expand Down

34 changes: 34 additions & 0 deletions
py/src/braintrust/integrations/anthropic/test_anthropic.py

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -53,6 +53,10 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "output_tokens": 7,
 "cache_read_input_tokens": 0,
 "cache_creation_input_tokens": 0,
 "server_tool_use": {
 "web_search_requests": 2,
 "web_fetch_requests": 1,
 },
 },
 )

Expand All@@ -71,13 +75,43 @@ def test_log_message_to_span_includes_stop_reason_and_stop_sequence():
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 0.0,
 "prompt_cache_creation_tokens": 0.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "tokens": 18.0,
 "time_to_first_token": 0.123,
 },
 metadata={},
 )


def test_extract_anthropic_usage_includes_server_tool_use_metrics_from_objects():
 usage = SimpleNamespace(
 input_tokens=11,
 output_tokens=7,
 cache_read_input_tokens=3,
 cache_creation_input_tokens=2,
 server_tool_use=SimpleNamespace(
 web_search_requests=2,
 web_fetch_requests=1,
 code_execution_requests=4,
 ),
 )

 metrics, metadata = extract_anthropic_usage(usage)

 assert metrics == {
 "prompt_tokens": 16.0,
 "completion_tokens": 7.0,
 "prompt_cached_tokens": 3.0,
 "prompt_cache_creation_tokens": 2.0,
 "server_tool_use_web_search_requests": 2.0,
 "server_tool_use_web_fetch_requests": 1.0,
 "server_tool_use_code_execution_requests": 4.0,
 "tokens": 23.0,
 }
 assert metadata == {}


@pytest.mark.vcr
def test_anthropic_messages_create_stream_true(memory_logger):
 assert not memory_logger.pop()
Expand Down
Loading