fix(core): Langgraph state graph invoke accepts null to resume#19374

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Merged
nicohrubec merged 9 commits into from
Feb 19, 2026
Merged

fix(core): Langgraph state graph invoke accepts null to resume #19374

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81d0def
fix(core): Langgraph state graph invoke accepts null to resume
nicohrubec Feb 18, 2026
472d2d3
update
nicohrubec Feb 18, 2026
8f80b5d
remove empty space
nicohrubec Feb 18, 2026
1cd5e87
update comment
nicohrubec Feb 18, 2026
b2f50d2
.
nicohrubec Feb 18, 2026
9255d9f
Merge branch 'develop' into nh/langgraph-resume
nicohrubec Feb 19, 2026
f984951
add contributor to changelog
nicohrubec Feb 19, 2026
770d9df
Update changelog
nicohrubec Feb 19, 2026
fefcd4c
.
nicohrubec Feb 19, 2026
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2 changes: 1 addition & 1 deletion CHANGELOG.md
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -36,7 +36,7 @@
This new mode no longer creates a session per soft navigation but continues the initial session until the next hard page refresh.
Check out the [docs](https://docs.sentry.io/platforms/javascript/guides/nextjs/configuration/integrations/browsersession/) to learn more!

Work in this release was contributed by @LudvigHz. Thank you for your contribution!
Work in this release was contributed by @LudvigHz and @jadengis. Thank you for your contributions!

## 10.39.0

Expand Down
43 changes: 43 additions & 0 deletions dev-packages/node-integration-tests/suites/tracing/langgraph/scenario-resume.mjs
View file
Open in desktop
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,43 @@
import { END, MemorySaver, MessagesAnnotation, START, StateGraph } from '@langchain/langgraph';
import * as Sentry from '@sentry/node';

async function run() {
await Sentry.startSpan({ op: 'function', name: 'langgraph-resume-test' }, async () => {
const mockLlm = () => {
return {
messages: [
{
role: 'assistant',
content: 'Mock LLM response',
response_metadata: {
model_name: 'mock-model',
finish_reason: 'stop',
tokenUsage: {
promptTokens: 20,
completionTokens: 10,
totalTokens: 30,
},
},
},
],
};
};

// Test: invoke with null input (resume after human-in-the-loop interrupt)
// See: https://docs.langchain.com/oss/javascript/langgraph/use-functional-api#resuming-after-an-error
const checkpointer = new MemorySaver();
const graph = new StateGraph(MessagesAnnotation)
.addNode('agent', mockLlm)
.addEdge(START, 'agent')
.addEdge('agent', END)
.compile({ name: 'resume_agent', checkpointer });

const config = { configurable: { thread_id: 'resume-thread-1' } };
await graph.invoke({ messages: [{ role: 'user', content: 'Hello' }] }, config);
await graph.invoke(null, config);
});

await Sentry.flush(2000);
}

run();
46 changes: 46 additions & 0 deletions dev-packages/node-integration-tests/suites/tracing/langgraph/test.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -318,4 +318,50 @@ describe('LangGraph integration', () => {
});
},
);

// Test for null input resume scenario
const EXPECTED_TRANSACTION_RESUME = {
transaction: 'langgraph-resume-test',
contexts: {
trace: expect.objectContaining({
status: 'ok',
}),
},
spans: expect.arrayContaining([
// create_agent span
expect.objectContaining({
data: {
[GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'create_agent',
[SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.create_agent',
[SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
[GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
},
description: 'create_agent resume_agent',
op: 'gen_ai.create_agent',
origin: 'auto.ai.langgraph',
status: 'ok',
}),
// invoke_agent span with null input (resume)
expect.objectContaining({
data: expect.objectContaining({
[GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'invoke_agent',
[SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.invoke_agent',
[SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
[GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
[GEN_AI_PIPELINE_NAME_ATTRIBUTE]: 'resume_agent',
[GEN_AI_CONVERSATION_ID_ATTRIBUTE]: 'resume-thread-1',
}),
description: 'invoke_agent resume_agent',
op: 'gen_ai.invoke_agent',
origin: 'auto.ai.langgraph',
status: 'ok',
}),
]),
};

createEsmAndCjsTests(__dirname, 'scenario-resume.mjs', 'instrument.mjs', (createRunner, test) => {
test('should not throw when invoke is called with null input (resume scenario)', async () => {
await createRunner().ignore('event').expect({ transaction: EXPECTED_TRANSACTION_RESUME }).start().completed();
});
});
});
2 changes: 1 addition & 1 deletion packages/core/src/tracing/langgraph/index.ts
View file
Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -136,7 +136,7 @@ function instrumentCompiledGraphInvoke(
const recordInputs = options.recordInputs;
const recordOutputs = options.recordOutputs;
const inputMessages =
args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] }).messages ?? []) : [];
args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] } | null)?.messages ?? []) : [];

if (inputMessages && recordInputs) {
const normalizedMessages = normalizeLangChainMessages(inputMessages);
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(core): Langgraph state graph invoke accepts null to resume#19374

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 Merged

nicohrubec
merged 9 commits into

from

Feb 19, 2026
 Merged


fix(core): Langgraph state graph invoke accepts null to resume
#19374
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81d0def

fix(core): Langgraph state graph invoke accepts null to resume


nicohrubec Feb 18, 2026
472d2d3

update


nicohrubec Feb 18, 2026
8f80b5d

remove empty space


nicohrubec Feb 18, 2026
1cd5e87

update comment


nicohrubec Feb 18, 2026
b2f50d2

.


nicohrubec Feb 18, 2026
9255d9f

Merge branch 'develop' into nh/langgraph-resume


nicohrubec Feb 19, 2026
f984951

add contributor to changelog


nicohrubec Feb 19, 2026
770d9df

Update changelog


nicohrubec Feb 19, 2026
fefcd4c

.


nicohrubec Feb 19, 2026

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2 changes: 1 addition & 1 deletion
CHANGELOG.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -36,7 +36,7 @@
 This new mode no longer creates a session per soft navigation but continues the initial session until the next hard page refresh.
 Check out the [docs](https://docs.sentry.io/platforms/javascript/guides/nextjs/configuration/integrations/browsersession/) to learn more!

Work in this release was contributed by @LudvigHz. Thank you for your contribution!
Work in this release was contributed by @LudvigHz and @jadengis. Thank you for your contributions!

## 10.39.0

Expand Down

43 changes: 43 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/scenario-resume.mjs

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,43 @@
import { END, MemorySaver, MessagesAnnotation, START, StateGraph } from '@langchain/langgraph';
import * as Sentry from '@sentry/node';

async function run() {
 await Sentry.startSpan({ op: 'function', name: 'langgraph-resume-test' }, async () => {
 const mockLlm = () => {
 return {
 messages: [
 {
 role: 'assistant',
 content: 'Mock LLM response',
 response_metadata: {
 model_name: 'mock-model',
 finish_reason: 'stop',
 tokenUsage: {
 promptTokens: 20,
 completionTokens: 10,
 totalTokens: 30,
 },
 },
 },
 ],
 };
 };

 // Test: invoke with null input (resume after human-in-the-loop interrupt)
 // See: https://docs.langchain.com/oss/javascript/langgraph/use-functional-api#resuming-after-an-error
 const checkpointer = new MemorySaver();
 const graph = new StateGraph(MessagesAnnotation)
 .addNode('agent', mockLlm)
 .addEdge(START, 'agent')
 .addEdge('agent', END)
 .compile({ name: 'resume_agent', checkpointer });

 const config = { configurable: { thread_id: 'resume-thread-1' } };
 await graph.invoke({ messages: [{ role: 'user', content: 'Hello' }] }, config);
 await graph.invoke(null, config);
 });

 await Sentry.flush(2000);
}

run();

46 changes: 46 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -318,4 +318,50 @@ describe('LangGraph integration', () => {
 });
 },
 );

 // Test for null input resume scenario
 const EXPECTED_TRANSACTION_RESUME = {
 transaction: 'langgraph-resume-test',
 contexts: {
 trace: expect.objectContaining({
 status: 'ok',
 }),
 },
 spans: expect.arrayContaining([
 // create_agent span
 expect.objectContaining({
 data: {
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 },
 description: 'create_agent resume_agent',
 op: 'gen_ai.create_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 // invoke_agent span with null input (resume)
 expect.objectContaining({
 data: expect.objectContaining({
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_PIPELINE_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_CONVERSATION_ID_ATTRIBUTE]: 'resume-thread-1',
 }),
 description: 'invoke_agent resume_agent',
 op: 'gen_ai.invoke_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 ]),
 };

 createEsmAndCjsTests(__dirname, 'scenario-resume.mjs', 'instrument.mjs', (createRunner, test) => {
 test('should not throw when invoke is called with null input (resume scenario)', async () => {
 await createRunner().ignore('event').expect({ transaction: EXPECTED_TRANSACTION_RESUME }).start().completed();
 });
 });
});

2 changes: 1 addition & 1 deletion
packages/core/src/tracing/langgraph/index.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -136,7 +136,7 @@ function instrumentCompiledGraphInvoke(
 const recordInputs = options.recordInputs;
 const recordOutputs = options.recordOutputs;
 const inputMessages =
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] }).messages ?? []) : [];
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] } | null)?.messages ?? []) : [];

 if (inputMessages && recordInputs) {
 const normalizedMessages = normalizeLangChainMessages(inputMessages);
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('^' + ".*" + '

Skip to content
fix(core): Langgraph state graph invoke accepts null to resume#19374

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 Merged

nicohrubec
merged 9 commits into

from

Feb 19, 2026
 Merged


fix(core): Langgraph state graph invoke accepts null to resume
#19374
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81d0def

fix(core): Langgraph state graph invoke accepts null to resume


nicohrubec Feb 18, 2026
472d2d3

update


nicohrubec Feb 18, 2026
8f80b5d

remove empty space


nicohrubec Feb 18, 2026
1cd5e87

update comment


nicohrubec Feb 18, 2026
b2f50d2

.


nicohrubec Feb 18, 2026
9255d9f

Merge branch 'develop' into nh/langgraph-resume


nicohrubec Feb 19, 2026
f984951

add contributor to changelog


nicohrubec Feb 19, 2026
770d9df

Update changelog


nicohrubec Feb 19, 2026
fefcd4c

.


nicohrubec Feb 19, 2026

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2 changes: 1 addition & 1 deletion
CHANGELOG.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -36,7 +36,7 @@
 This new mode no longer creates a session per soft navigation but continues the initial session until the next hard page refresh.
 Check out the [docs](https://docs.sentry.io/platforms/javascript/guides/nextjs/configuration/integrations/browsersession/) to learn more!

Work in this release was contributed by @LudvigHz. Thank you for your contribution!
Work in this release was contributed by @LudvigHz and @jadengis. Thank you for your contributions!

## 10.39.0

Expand Down

43 changes: 43 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/scenario-resume.mjs

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,43 @@
import { END, MemorySaver, MessagesAnnotation, START, StateGraph } from '@langchain/langgraph';
import * as Sentry from '@sentry/node';

async function run() {
 await Sentry.startSpan({ op: 'function', name: 'langgraph-resume-test' }, async () => {
 const mockLlm = () => {
 return {
 messages: [
 {
 role: 'assistant',
 content: 'Mock LLM response',
 response_metadata: {
 model_name: 'mock-model',
 finish_reason: 'stop',
 tokenUsage: {
 promptTokens: 20,
 completionTokens: 10,
 totalTokens: 30,
 },
 },
 },
 ],
 };
 };

 // Test: invoke with null input (resume after human-in-the-loop interrupt)
 // See: https://docs.langchain.com/oss/javascript/langgraph/use-functional-api#resuming-after-an-error
 const checkpointer = new MemorySaver();
 const graph = new StateGraph(MessagesAnnotation)
 .addNode('agent', mockLlm)
 .addEdge(START, 'agent')
 .addEdge('agent', END)
 .compile({ name: 'resume_agent', checkpointer });

 const config = { configurable: { thread_id: 'resume-thread-1' } };
 await graph.invoke({ messages: [{ role: 'user', content: 'Hello' }] }, config);
 await graph.invoke(null, config);
 });

 await Sentry.flush(2000);
}

run();

46 changes: 46 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -318,4 +318,50 @@ describe('LangGraph integration', () => {
 });
 },
 );

 // Test for null input resume scenario
 const EXPECTED_TRANSACTION_RESUME = {
 transaction: 'langgraph-resume-test',
 contexts: {
 trace: expect.objectContaining({
 status: 'ok',
 }),
 },
 spans: expect.arrayContaining([
 // create_agent span
 expect.objectContaining({
 data: {
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 },
 description: 'create_agent resume_agent',
 op: 'gen_ai.create_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 // invoke_agent span with null input (resume)
 expect.objectContaining({
 data: expect.objectContaining({
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_PIPELINE_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_CONVERSATION_ID_ATTRIBUTE]: 'resume-thread-1',
 }),
 description: 'invoke_agent resume_agent',
 op: 'gen_ai.invoke_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 ]),
 };

 createEsmAndCjsTests(__dirname, 'scenario-resume.mjs', 'instrument.mjs', (createRunner, test) => {
 test('should not throw when invoke is called with null input (resume scenario)', async () => {
 await createRunner().ignore('event').expect({ transaction: EXPECTED_TRANSACTION_RESUME }).start().completed();
 });
 });
});

2 changes: 1 addition & 1 deletion
packages/core/src/tracing/langgraph/index.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -136,7 +136,7 @@ function instrumentCompiledGraphInvoke(
 const recordInputs = options.recordInputs;
 const recordOutputs = options.recordOutputs;
 const inputMessages =
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] }).messages ?? []) : [];
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] } | null)?.messages ?? []) : [];

 if (inputMessages && recordInputs) {
 const normalizedMessages = normalizeLangChainMessages(inputMessages);
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('^' + ".*" + '

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fix(core): Langgraph state graph invoke accepts null to resume#19374

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 Merged

nicohrubec
merged 9 commits into

from

Feb 19, 2026
 Merged


fix(core): Langgraph state graph invoke accepts null to resume
#19374
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81d0def

fix(core): Langgraph state graph invoke accepts null to resume


nicohrubec Feb 18, 2026
472d2d3

update


nicohrubec Feb 18, 2026
8f80b5d

remove empty space


nicohrubec Feb 18, 2026
1cd5e87

update comment


nicohrubec Feb 18, 2026
b2f50d2

.


nicohrubec Feb 18, 2026
9255d9f

Merge branch 'develop' into nh/langgraph-resume


nicohrubec Feb 19, 2026
f984951

add contributor to changelog


nicohrubec Feb 19, 2026
770d9df

Update changelog


nicohrubec Feb 19, 2026
fefcd4c

.


nicohrubec Feb 19, 2026

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2 changes: 1 addition & 1 deletion
CHANGELOG.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -36,7 +36,7 @@
 This new mode no longer creates a session per soft navigation but continues the initial session until the next hard page refresh.
 Check out the [docs](https://docs.sentry.io/platforms/javascript/guides/nextjs/configuration/integrations/browsersession/) to learn more!

Work in this release was contributed by @LudvigHz. Thank you for your contribution!
Work in this release was contributed by @LudvigHz and @jadengis. Thank you for your contributions!

## 10.39.0

Expand Down

43 changes: 43 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/scenario-resume.mjs

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,43 @@
import { END, MemorySaver, MessagesAnnotation, START, StateGraph } from '@langchain/langgraph';
import * as Sentry from '@sentry/node';

async function run() {
 await Sentry.startSpan({ op: 'function', name: 'langgraph-resume-test' }, async () => {
 const mockLlm = () => {
 return {
 messages: [
 {
 role: 'assistant',
 content: 'Mock LLM response',
 response_metadata: {
 model_name: 'mock-model',
 finish_reason: 'stop',
 tokenUsage: {
 promptTokens: 20,
 completionTokens: 10,
 totalTokens: 30,
 },
 },
 },
 ],
 };
 };

 // Test: invoke with null input (resume after human-in-the-loop interrupt)
 // See: https://docs.langchain.com/oss/javascript/langgraph/use-functional-api#resuming-after-an-error
 const checkpointer = new MemorySaver();
 const graph = new StateGraph(MessagesAnnotation)
 .addNode('agent', mockLlm)
 .addEdge(START, 'agent')
 .addEdge('agent', END)
 .compile({ name: 'resume_agent', checkpointer });

 const config = { configurable: { thread_id: 'resume-thread-1' } };
 await graph.invoke({ messages: [{ role: 'user', content: 'Hello' }] }, config);
 await graph.invoke(null, config);
 });

 await Sentry.flush(2000);
}

run();

46 changes: 46 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -318,4 +318,50 @@ describe('LangGraph integration', () => {
 });
 },
 );

 // Test for null input resume scenario
 const EXPECTED_TRANSACTION_RESUME = {
 transaction: 'langgraph-resume-test',
 contexts: {
 trace: expect.objectContaining({
 status: 'ok',
 }),
 },
 spans: expect.arrayContaining([
 // create_agent span
 expect.objectContaining({
 data: {
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 },
 description: 'create_agent resume_agent',
 op: 'gen_ai.create_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 // invoke_agent span with null input (resume)
 expect.objectContaining({
 data: expect.objectContaining({
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_PIPELINE_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_CONVERSATION_ID_ATTRIBUTE]: 'resume-thread-1',
 }),
 description: 'invoke_agent resume_agent',
 op: 'gen_ai.invoke_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 ]),
 };

 createEsmAndCjsTests(__dirname, 'scenario-resume.mjs', 'instrument.mjs', (createRunner, test) => {
 test('should not throw when invoke is called with null input (resume scenario)', async () => {
 await createRunner().ignore('event').expect({ transaction: EXPECTED_TRANSACTION_RESUME }).start().completed();
 });
 });
});

2 changes: 1 addition & 1 deletion
packages/core/src/tracing/langgraph/index.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -136,7 +136,7 @@ function instrumentCompiledGraphInvoke(
 const recordInputs = options.recordInputs;
 const recordOutputs = options.recordOutputs;
 const inputMessages =
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] }).messages ?? []) : [];
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] } | null)?.messages ?? []) : [];

 if (inputMessages && recordInputs) {
 const normalizedMessages = normalizeLangChainMessages(inputMessages);
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" + '

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fix(core): Langgraph state graph invoke accepts null to resume#19374

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 Merged

nicohrubec
merged 9 commits into

from

Feb 19, 2026
 Merged


fix(core): Langgraph state graph invoke accepts null to resume
#19374
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81d0def

fix(core): Langgraph state graph invoke accepts null to resume


nicohrubec Feb 18, 2026
472d2d3

update


nicohrubec Feb 18, 2026
8f80b5d

remove empty space


nicohrubec Feb 18, 2026
1cd5e87

update comment


nicohrubec Feb 18, 2026
b2f50d2

.


nicohrubec Feb 18, 2026
9255d9f

Merge branch 'develop' into nh/langgraph-resume


nicohrubec Feb 19, 2026
f984951

add contributor to changelog


nicohrubec Feb 19, 2026
770d9df

Update changelog


nicohrubec Feb 19, 2026
fefcd4c

.


nicohrubec Feb 19, 2026

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2 changes: 1 addition & 1 deletion
CHANGELOG.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -36,7 +36,7 @@
 This new mode no longer creates a session per soft navigation but continues the initial session until the next hard page refresh.
 Check out the [docs](https://docs.sentry.io/platforms/javascript/guides/nextjs/configuration/integrations/browsersession/) to learn more!

Work in this release was contributed by @LudvigHz. Thank you for your contribution!
Work in this release was contributed by @LudvigHz and @jadengis. Thank you for your contributions!

## 10.39.0

Expand Down

43 changes: 43 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/scenario-resume.mjs

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,43 @@
import { END, MemorySaver, MessagesAnnotation, START, StateGraph } from '@langchain/langgraph';
import * as Sentry from '@sentry/node';

async function run() {
 await Sentry.startSpan({ op: 'function', name: 'langgraph-resume-test' }, async () => {
 const mockLlm = () => {
 return {
 messages: [
 {
 role: 'assistant',
 content: 'Mock LLM response',
 response_metadata: {
 model_name: 'mock-model',
 finish_reason: 'stop',
 tokenUsage: {
 promptTokens: 20,
 completionTokens: 10,
 totalTokens: 30,
 },
 },
 },
 ],
 };
 };

 // Test: invoke with null input (resume after human-in-the-loop interrupt)
 // See: https://docs.langchain.com/oss/javascript/langgraph/use-functional-api#resuming-after-an-error
 const checkpointer = new MemorySaver();
 const graph = new StateGraph(MessagesAnnotation)
 .addNode('agent', mockLlm)
 .addEdge(START, 'agent')
 .addEdge('agent', END)
 .compile({ name: 'resume_agent', checkpointer });

 const config = { configurable: { thread_id: 'resume-thread-1' } };
 await graph.invoke({ messages: [{ role: 'user', content: 'Hello' }] }, config);
 await graph.invoke(null, config);
 });

 await Sentry.flush(2000);
}

run();

46 changes: 46 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -318,4 +318,50 @@ describe('LangGraph integration', () => {
 });
 },
 );

 // Test for null input resume scenario
 const EXPECTED_TRANSACTION_RESUME = {
 transaction: 'langgraph-resume-test',
 contexts: {
 trace: expect.objectContaining({
 status: 'ok',
 }),
 },
 spans: expect.arrayContaining([
 // create_agent span
 expect.objectContaining({
 data: {
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 },
 description: 'create_agent resume_agent',
 op: 'gen_ai.create_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 // invoke_agent span with null input (resume)
 expect.objectContaining({
 data: expect.objectContaining({
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_PIPELINE_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_CONVERSATION_ID_ATTRIBUTE]: 'resume-thread-1',
 }),
 description: 'invoke_agent resume_agent',
 op: 'gen_ai.invoke_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 ]),
 };

 createEsmAndCjsTests(__dirname, 'scenario-resume.mjs', 'instrument.mjs', (createRunner, test) => {
 test('should not throw when invoke is called with null input (resume scenario)', async () => {
 await createRunner().ignore('event').expect({ transaction: EXPECTED_TRANSACTION_RESUME }).start().completed();
 });
 });
});

2 changes: 1 addition & 1 deletion
packages/core/src/tracing/langgraph/index.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -136,7 +136,7 @@ function instrumentCompiledGraphInvoke(
 const recordInputs = options.recordInputs;
 const recordOutputs = options.recordOutputs;
 const inputMessages =
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] }).messages ?? []) : [];
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] } | null)?.messages ?? []) : [];

 if (inputMessages && recordInputs) {
 const normalizedMessages = normalizeLangChainMessages(inputMessages);
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('^' + ".*" + '

Skip to content
fix(core): Langgraph state graph invoke accepts null to resume#19374

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to your account

 Merged

nicohrubec
merged 9 commits into

from

Feb 19, 2026
 Merged


fix(core): Langgraph state graph invoke accepts null to resume
#19374
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81d0def

fix(core): Langgraph state graph invoke accepts null to resume


nicohrubec Feb 18, 2026
472d2d3

update


nicohrubec Feb 18, 2026
8f80b5d

remove empty space


nicohrubec Feb 18, 2026
1cd5e87

update comment


nicohrubec Feb 18, 2026
b2f50d2

.


nicohrubec Feb 18, 2026
9255d9f

Merge branch 'develop' into nh/langgraph-resume


nicohrubec Feb 19, 2026
f984951

add contributor to changelog


nicohrubec Feb 19, 2026
770d9df

Update changelog


nicohrubec Feb 19, 2026
fefcd4c

.


nicohrubec Feb 19, 2026

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2 changes: 1 addition & 1 deletion
CHANGELOG.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -36,7 +36,7 @@
 This new mode no longer creates a session per soft navigation but continues the initial session until the next hard page refresh.
 Check out the [docs](https://docs.sentry.io/platforms/javascript/guides/nextjs/configuration/integrations/browsersession/) to learn more!

Work in this release was contributed by @LudvigHz. Thank you for your contribution!
Work in this release was contributed by @LudvigHz and @jadengis. Thank you for your contributions!

## 10.39.0

Expand Down

43 changes: 43 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/scenario-resume.mjs

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,43 @@
import { END, MemorySaver, MessagesAnnotation, START, StateGraph } from '@langchain/langgraph';
import * as Sentry from '@sentry/node';

async function run() {
 await Sentry.startSpan({ op: 'function', name: 'langgraph-resume-test' }, async () => {
 const mockLlm = () => {
 return {
 messages: [
 {
 role: 'assistant',
 content: 'Mock LLM response',
 response_metadata: {
 model_name: 'mock-model',
 finish_reason: 'stop',
 tokenUsage: {
 promptTokens: 20,
 completionTokens: 10,
 totalTokens: 30,
 },
 },
 },
 ],
 };
 };

 // Test: invoke with null input (resume after human-in-the-loop interrupt)
 // See: https://docs.langchain.com/oss/javascript/langgraph/use-functional-api#resuming-after-an-error
 const checkpointer = new MemorySaver();
 const graph = new StateGraph(MessagesAnnotation)
 .addNode('agent', mockLlm)
 .addEdge(START, 'agent')
 .addEdge('agent', END)
 .compile({ name: 'resume_agent', checkpointer });

 const config = { configurable: { thread_id: 'resume-thread-1' } };
 await graph.invoke({ messages: [{ role: 'user', content: 'Hello' }] }, config);
 await graph.invoke(null, config);
 });

 await Sentry.flush(2000);
}

run();

46 changes: 46 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -318,4 +318,50 @@ describe('LangGraph integration', () => {
 });
 },
 );

 // Test for null input resume scenario
 const EXPECTED_TRANSACTION_RESUME = {
 transaction: 'langgraph-resume-test',
 contexts: {
 trace: expect.objectContaining({
 status: 'ok',
 }),
 },
 spans: expect.arrayContaining([
 // create_agent span
 expect.objectContaining({
 data: {
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 },
 description: 'create_agent resume_agent',
 op: 'gen_ai.create_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 // invoke_agent span with null input (resume)
 expect.objectContaining({
 data: expect.objectContaining({
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_PIPELINE_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_CONVERSATION_ID_ATTRIBUTE]: 'resume-thread-1',
 }),
 description: 'invoke_agent resume_agent',
 op: 'gen_ai.invoke_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 ]),
 };

 createEsmAndCjsTests(__dirname, 'scenario-resume.mjs', 'instrument.mjs', (createRunner, test) => {
 test('should not throw when invoke is called with null input (resume scenario)', async () => {
 await createRunner().ignore('event').expect({ transaction: EXPECTED_TRANSACTION_RESUME }).start().completed();
 });
 });
});

2 changes: 1 addition & 1 deletion
packages/core/src/tracing/langgraph/index.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -136,7 +136,7 @@ function instrumentCompiledGraphInvoke(
 const recordInputs = options.recordInputs;
 const recordOutputs = options.recordOutputs;
 const inputMessages =
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] }).messages ?? []) : [];
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] } | null)?.messages ?? []) : [];

 if (inputMessages && recordInputs) {
 const normalizedMessages = normalizeLangChainMessages(inputMessages);
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(core): Langgraph state graph invoke accepts null to resume#19374

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 Merged

nicohrubec
merged 9 commits into

from

Feb 19, 2026
 Merged


fix(core): Langgraph state graph invoke accepts null to resume
#19374
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81d0def

fix(core): Langgraph state graph invoke accepts null to resume


nicohrubec Feb 18, 2026
472d2d3

update


nicohrubec Feb 18, 2026
8f80b5d

remove empty space


nicohrubec Feb 18, 2026
1cd5e87

update comment


nicohrubec Feb 18, 2026
b2f50d2

.


nicohrubec Feb 18, 2026
9255d9f

Merge branch 'develop' into nh/langgraph-resume


nicohrubec Feb 19, 2026
f984951

add contributor to changelog


nicohrubec Feb 19, 2026
770d9df

Update changelog


nicohrubec Feb 19, 2026
fefcd4c

.


nicohrubec Feb 19, 2026

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2 changes: 1 addition & 1 deletion
CHANGELOG.md

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -36,7 +36,7 @@
 This new mode no longer creates a session per soft navigation but continues the initial session until the next hard page refresh.
 Check out the [docs](https://docs.sentry.io/platforms/javascript/guides/nextjs/configuration/integrations/browsersession/) to learn more!

Work in this release was contributed by @LudvigHz. Thank you for your contribution!
Work in this release was contributed by @LudvigHz and @jadengis. Thank you for your contributions!

## 10.39.0

Expand Down

43 changes: 43 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/scenario-resume.mjs

View file


Open in desktop

Original file line numberDiff line numberDiff line change
@@ -0,0 +1,43 @@
import { END, MemorySaver, MessagesAnnotation, START, StateGraph } from '@langchain/langgraph';
import * as Sentry from '@sentry/node';

async function run() {
 await Sentry.startSpan({ op: 'function', name: 'langgraph-resume-test' }, async () => {
 const mockLlm = () => {
 return {
 messages: [
 {
 role: 'assistant',
 content: 'Mock LLM response',
 response_metadata: {
 model_name: 'mock-model',
 finish_reason: 'stop',
 tokenUsage: {
 promptTokens: 20,
 completionTokens: 10,
 totalTokens: 30,
 },
 },
 },
 ],
 };
 };

 // Test: invoke with null input (resume after human-in-the-loop interrupt)
 // See: https://docs.langchain.com/oss/javascript/langgraph/use-functional-api#resuming-after-an-error
 const checkpointer = new MemorySaver();
 const graph = new StateGraph(MessagesAnnotation)
 .addNode('agent', mockLlm)
 .addEdge(START, 'agent')
 .addEdge('agent', END)
 .compile({ name: 'resume_agent', checkpointer });

 const config = { configurable: { thread_id: 'resume-thread-1' } };
 await graph.invoke({ messages: [{ role: 'user', content: 'Hello' }] }, config);
 await graph.invoke(null, config);
 });

 await Sentry.flush(2000);
}

run();

46 changes: 46 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -318,4 +318,50 @@ describe('LangGraph integration', () => {
 });
 },
 );

 // Test for null input resume scenario
 const EXPECTED_TRANSACTION_RESUME = {
 transaction: 'langgraph-resume-test',
 contexts: {
 trace: expect.objectContaining({
 status: 'ok',
 }),
 },
 spans: expect.arrayContaining([
 // create_agent span
 expect.objectContaining({
 data: {
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 },
 description: 'create_agent resume_agent',
 op: 'gen_ai.create_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 // invoke_agent span with null input (resume)
 expect.objectContaining({
 data: expect.objectContaining({
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_PIPELINE_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_CONVERSATION_ID_ATTRIBUTE]: 'resume-thread-1',
 }),
 description: 'invoke_agent resume_agent',
 op: 'gen_ai.invoke_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 ]),
 };

 createEsmAndCjsTests(__dirname, 'scenario-resume.mjs', 'instrument.mjs', (createRunner, test) => {
 test('should not throw when invoke is called with null input (resume scenario)', async () => {
 await createRunner().ignore('event').expect({ transaction: EXPECTED_TRANSACTION_RESUME }).start().completed();
 });
 });
});

2 changes: 1 addition & 1 deletion
packages/core/src/tracing/langgraph/index.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -136,7 +136,7 @@ function instrumentCompiledGraphInvoke(
 const recordInputs = options.recordInputs;
 const recordOutputs = options.recordOutputs;
 const inputMessages =
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] }).messages ?? []) : [];
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] } | null)?.messages ?? []) : [];

 if (inputMessages && recordInputs) {
 const normalizedMessages = normalizeLangChainMessages(inputMessages);
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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); }
})();
})();

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fix(core): Langgraph state graph invoke accepts null to resume#19374

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 Merged

nicohrubec
merged 9 commits into

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Feb 19, 2026
 Merged


fix(core): Langgraph state graph invoke accepts null to resume
#19374
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81d0def

fix(core): Langgraph state graph invoke accepts null to resume


nicohrubec Feb 18, 2026
472d2d3

update


nicohrubec Feb 18, 2026
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remove empty space


nicohrubec Feb 18, 2026
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update comment


nicohrubec Feb 18, 2026
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nicohrubec Feb 18, 2026
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Merge branch 'develop' into nh/langgraph-resume


nicohrubec Feb 19, 2026
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add contributor to changelog


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2 changes: 1 addition & 1 deletion
CHANGELOG.md

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Original file line numberDiff line numberDiff line change
Expand Up@@ -36,7 +36,7 @@
 This new mode no longer creates a session per soft navigation but continues the initial session until the next hard page refresh.
 Check out the [docs](https://docs.sentry.io/platforms/javascript/guides/nextjs/configuration/integrations/browsersession/) to learn more!

Work in this release was contributed by @LudvigHz. Thank you for your contribution!
Work in this release was contributed by @LudvigHz and @jadengis. Thank you for your contributions!

## 10.39.0

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43 changes: 43 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/scenario-resume.mjs

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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,43 @@
import { END, MemorySaver, MessagesAnnotation, START, StateGraph } from '@langchain/langgraph';
import * as Sentry from '@sentry/node';

async function run() {
 await Sentry.startSpan({ op: 'function', name: 'langgraph-resume-test' }, async () => {
 const mockLlm = () => {
 return {
 messages: [
 {
 role: 'assistant',
 content: 'Mock LLM response',
 response_metadata: {
 model_name: 'mock-model',
 finish_reason: 'stop',
 tokenUsage: {
 promptTokens: 20,
 completionTokens: 10,
 totalTokens: 30,
 },
 },
 },
 ],
 };
 };

 // Test: invoke with null input (resume after human-in-the-loop interrupt)
 // See: https://docs.langchain.com/oss/javascript/langgraph/use-functional-api#resuming-after-an-error
 const checkpointer = new MemorySaver();
 const graph = new StateGraph(MessagesAnnotation)
 .addNode('agent', mockLlm)
 .addEdge(START, 'agent')
 .addEdge('agent', END)
 .compile({ name: 'resume_agent', checkpointer });

 const config = { configurable: { thread_id: 'resume-thread-1' } };
 await graph.invoke({ messages: [{ role: 'user', content: 'Hello' }] }, config);
 await graph.invoke(null, config);
 });

 await Sentry.flush(2000);
}

run();

46 changes: 46 additions & 0 deletions
dev-packages/node-integration-tests/suites/tracing/langgraph/test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -318,4 +318,50 @@ describe('LangGraph integration', () => {
 });
 },
 );

 // Test for null input resume scenario
 const EXPECTED_TRANSACTION_RESUME = {
 transaction: 'langgraph-resume-test',
 contexts: {
 trace: expect.objectContaining({
 status: 'ok',
 }),
 },
 spans: expect.arrayContaining([
 // create_agent span
 expect.objectContaining({
 data: {
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.create_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 },
 description: 'create_agent resume_agent',
 op: 'gen_ai.create_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 // invoke_agent span with null input (resume)
 expect.objectContaining({
 data: expect.objectContaining({
 [GEN_AI_OPERATION_NAME_ATTRIBUTE]: 'invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_OP]: 'gen_ai.invoke_agent',
 [SEMANTIC_ATTRIBUTE_SENTRY_ORIGIN]: 'auto.ai.langgraph',
 [GEN_AI_AGENT_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_PIPELINE_NAME_ATTRIBUTE]: 'resume_agent',
 [GEN_AI_CONVERSATION_ID_ATTRIBUTE]: 'resume-thread-1',
 }),
 description: 'invoke_agent resume_agent',
 op: 'gen_ai.invoke_agent',
 origin: 'auto.ai.langgraph',
 status: 'ok',
 }),
 ]),
 };

 createEsmAndCjsTests(__dirname, 'scenario-resume.mjs', 'instrument.mjs', (createRunner, test) => {
 test('should not throw when invoke is called with null input (resume scenario)', async () => {
 await createRunner().ignore('event').expect({ transaction: EXPECTED_TRANSACTION_RESUME }).start().completed();
 });
 });
});

2 changes: 1 addition & 1 deletion
packages/core/src/tracing/langgraph/index.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -136,7 +136,7 @@ function instrumentCompiledGraphInvoke(
 const recordInputs = options.recordInputs;
 const recordOutputs = options.recordOutputs;
 const inputMessages =
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] }).messages ?? []) : [];
 args.length > 0 ? ((args[0] as { messages?: LangChainMessage[] } | null)?.messages ?? []) : [];

 if (inputMessages && recordInputs) {
 const normalizedMessages = normalizeLangChainMessages(inputMessages);
Expand Down
Loading