fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+ - #1768

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Stephen Belanger (Qard) merged 1 commit into
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fix/ai-sdk-cjs-sync-channels
Apr 9, 2026
Merged

fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+#1768
Stephen Belanger (Qard) merged 1 commit into
mainfrom
fix/ai-sdk-cjs-sync-channels

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@QardStephen Belanger (Qard) commented Apr 9, 2026

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Summary

  • The CJS bundle entries for streamText and streamObject used kind: "Async" for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult have no .then(), so asyncEnd never fires when the transformer wraps via promise.then()
  • Splits the CJS entries to mirror the existing ESM split (which was already correct in main):
    • >=3.0.0 <4.0.0: kind: "Async" — v3, where the function was genuinely async
    • >=4.0.0: kind: "Sync" + sync channel — v4+, after the sync refactor
  • The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync already exist in ai-sdk-plugin.ts (they were added when the ESM path was fixed), so no plugin change is needed

Test plan

  • ai-sdk-plugin.test.ts — 96 tests pass
  • Pre-existing test failures in transformation.test.ts / loader-hook.test.ts confirmed unrelated (same failures on main)

🤖 Generated with Claude Code

@Qard@claude
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText…
1ef9d5e
…/streamObject in v4+
The CJS bundle entries for streamText and streamObject used kind: "Async"
for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult
have no .then(), so asyncEnd never fires with wrapPromise's async wrapping.
Split the CJS entries to mirror the existing ESM split:
- >=3.0.0 <4.0.0: kind "Async" (v3, where the function was genuinely async)
- >=4.0.0: kind "Sync" + sync channel (v4+, after the sync refactor)
The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync
already exist in ai-sdk-plugin.ts (added when ESM was fixed), so no
plugin change is needed.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
@Qard
Stephen Belanger (Qard) merged commit a0f4f12 into mainApr 9, 2026
54 of 55 checks passed
@Qard
Stephen Belanger (Qard) deleted the fix/ai-sdk-cjs-sync-channels branch April 9, 2026 18:46
@github-actionsgithub-actionsBot mentioned this pull request Apr 15, 2026
Merged
Luca Forstner (lforst) added a commit that referenced this pull request Apr 16, 2026
@github-actions@lforst
[ci] release (#1835)
6428774
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and publish to npm
yourself or [setup this action to publish
automatically](https://github.com/changesets/action#with-publishing). If
you're not ready to do a release yet, that's fine, whenever you add more
changesets to main, this PR will be updated.
# Releases
## braintrust@3.9.0
### Minor Changes
-
[#1824](#1824)
[`c980e07`](c980e07)
Thanks [@lforst](https://github.com/lforst)! - feat: Add reranking
instrumentation for AI SDK and Openrouter SDK
-
[#1738](#1738)
[`25d25d5`](25d25d5)
Thanks [@AbhiPrasad](https://github.com/AbhiPrasad)! - - feat: Add
instrumentation for @huggingface/inference
([#1807](#1807))
- feat: Add cohere-ai instrumentation
([#1781](#1781))
- fix: Capture anthropic server tool use inputs for streaming APIs
([#1776](#1776))
- feat: Capture grounding metadata for Google GenAI
([#1773](#1773))
- fix(claude-agent-sdk): Don't drop tool spans for spawning subagents
([#1779](#1779))
- feat: Track server tool use metrics for anthropic SDK
([#1772](#1772))
- fix(openai): Collect logprob and refulsals output for streaming APIs
([#1774](#1774))
- perf: Remove zod from deepCopyEvent
([#1796](#1796))
- fix(test): Double timeout for slow OpenAI API tests
([#1794](#1794))
- feat(claude-agent-sdk): Improve task lifecycle and lifecycle details
([#1777](#1777))
- ci(deps): bump actions/github-script from 8.0.0 to 9.0.0
([#1783](#1783))
- ci(deps): bump docker/setup-buildx-action from 3.12.0 to 4.0.0
([#1782](#1782))
- chore: Don't use environment (ie. github deployments) for canary tests
([#1775](#1775))
- chore: Make dependabot less annoying
([#1778](#1778))
- fix(auto-instrumentation): Upgrade @apm-js-collab/code-transformer to
v0.12.0
([#1708](#1708))
- fix(auto-instrumentation): Use sync channel for AI SDK CJS
streamText/streamObject in v4+
([#1768](#1768))
- fix: Give AI SDK top-level api spans type function
([#1769](#1769))
-
[#1814](#1814)
[`d9b9923`](d9b9923)
Thanks [@lforst](https://github.com/lforst)! - - feat: Add per-input
trialCount support to Eval()
-
[#1821](#1821)
[`1b5de11`](1b5de11)
Thanks [@lforst](https://github.com/lforst)! - feat: Instrument Google
GenAI embedContent for text
### Patch Changes
-
[#1825](#1825)
[`f389036`](f389036)
Thanks [@lforst](https://github.com/lforst)! - fix(ai-sdk): Restore
prompt cache metrics
-
[#1813](#1813)
[`2434a0e`](2434a0e)
Thanks [@lforst](https://github.com/lforst)! - fix(openai-agents): End
child spans on trace end
-
[#1836](#1836)
[`5581357`](5581357)
Thanks [@stretpjc](https://github.com/stretpjc)! - feat: Add
x-bt-use-gateway header to allowed CORS headers
---------
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Luca Forstner <luca.forstner@gmail.com>
Sign up for freeto join this conversation on GitHub. Already have an account? Sign in to comment

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
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})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

Skip to content
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+ - #1768
Merged
Stephen Belanger (Qard) merged 1 commit into
mainfrom 
fix/ai-sdk-cjs-sync-channels
Apr 9, 2026
Merged
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+#1768
Stephen Belanger (Qard) merged 1 commit into
mainfrom 
fix/ai-sdk-cjs-sync-channels
Conversation
@Qard
@QardStephen Belanger (Qard)
commented
Apr 9, 2026

Copy link


Copy Markdown

Collaborator
Summary
  • The CJS bundle entries for streamText and streamObject used kind: "Async" for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult have no .then(), so asyncEnd never fires when the transformer wraps via promise.then()
  • Splits the CJS entries to mirror the existing ESM split (which was already correct in main):

    • >=3.0.0 <4.0.0: kind: "Async" — v3, where the function was genuinely async
    • >=4.0.0: kind: "Sync" + sync channel — v4+, after the sync refactor
  • The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync already exist in ai-sdk-plugin.ts (they were added when the ESM path was fixed), so no plugin change is needed
Test plan
  • ai-sdk-plugin.test.ts — 96 tests pass
  •  Pre-existing test failures in transformation.test.ts / loader-hook.test.ts confirmed unrelated (same failures on main)
🤖 Generated with Claude Code
@Qard@claude
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText…
1ef9d5e
…/streamObject in v4+
The CJS bundle entries for streamText and streamObject used kind: "Async"
for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult
have no .then(), so asyncEnd never fires with wrapPromise's async wrapping.
Split the CJS entries to mirror the existing ESM split:
- >=3.0.0 <4.0.0: kind "Async" (v3, where the function was genuinely async)
- >=4.0.0: kind "Sync" + sync channel (v4+, after the sync refactor)
The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync
already exist in ai-sdk-plugin.ts (added when ESM was fixed), so no
plugin change is needed.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
@Qard
Stephen Belanger (Qard)
merged commit a0f4f12
into
mainApr 9, 2026

54 of 55 checks passed

@Qard
Stephen Belanger (Qard)
deleted the

fix/ai-sdk-cjs-sync-channels

branch
April 9, 2026 18:46
@github-actionsgithub-actionsBot
mentioned this pull request
Apr 15, 2026
 Merged

Luca Forstner (lforst) added a commit
that referenced
this pull request
Apr 16, 2026
@github-actions@lforst
[ci] release (#1835)
6428774
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and publish to npm
yourself or [setup this action to publish
automatically](https://github.com/changesets/action#with-publishing). If
you're not ready to do a release yet, that's fine, whenever you add more
changesets to main, this PR will be updated.
# Releases
## braintrust@3.9.0
### Minor Changes
-
[#1824](#1824)
[`c980e07`](c980e07)
Thanks [@lforst](https://github.com/lforst)! - feat: Add reranking
instrumentation for AI SDK and Openrouter SDK
-
[#1738](#1738)
[`25d25d5`](25d25d5)
Thanks [@AbhiPrasad](https://github.com/AbhiPrasad)! - - feat: Add
instrumentation for @huggingface/inference
([#1807](#1807))
- feat: Add cohere-ai instrumentation
([#1781](#1781))
- fix: Capture anthropic server tool use inputs for streaming APIs
([#1776](#1776))
- feat: Capture grounding metadata for Google GenAI
([#1773](#1773))
- fix(claude-agent-sdk): Don't drop tool spans for spawning subagents
([#1779](#1779))
- feat: Track server tool use metrics for anthropic SDK
([#1772](#1772))
- fix(openai): Collect logprob and refulsals output for streaming APIs
([#1774](#1774))
- perf: Remove zod from deepCopyEvent
([#1796](#1796))
- fix(test): Double timeout for slow OpenAI API tests
([#1794](#1794))
- feat(claude-agent-sdk): Improve task lifecycle and lifecycle details
([#1777](#1777))
- ci(deps): bump actions/github-script from 8.0.0 to 9.0.0
([#1783](#1783))
- ci(deps): bump docker/setup-buildx-action from 3.12.0 to 4.0.0
([#1782](#1782))
- chore: Don't use environment (ie. github deployments) for canary tests
([#1775](#1775))
- chore: Make dependabot less annoying
([#1778](#1778))
- fix(auto-instrumentation): Upgrade @apm-js-collab/code-transformer to
v0.12.0
([#1708](#1708))
- fix(auto-instrumentation): Use sync channel for AI SDK CJS
streamText/streamObject in v4+
([#1768](#1768))
- fix: Give AI SDK top-level api spans type function
([#1769](#1769))
-
[#1814](#1814)
[`d9b9923`](d9b9923)
Thanks [@lforst](https://github.com/lforst)! - - feat: Add per-input
trialCount support to Eval()
-
[#1821](#1821)
[`1b5de11`](1b5de11)
Thanks [@lforst](https://github.com/lforst)! - feat: Instrument Google
GenAI embedContent for text
### Patch Changes
-
[#1825](#1825)
[`f389036`](f389036)
Thanks [@lforst](https://github.com/lforst)! - fix(ai-sdk): Restore
prompt cache metrics
-
[#1813](#1813)
[`2434a0e`](2434a0e)
Thanks [@lforst](https://github.com/lforst)! - fix(openai-agents): End
child spans on trace end
-
[#1836](#1836)
[`5581357`](5581357)
Thanks [@stretpjc](https://github.com/stretpjc)! - feat: Add
x-bt-use-gateway header to allowed CORS headers
---------
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Luca Forstner <luca.forstner@gmail.com>
Sign up for freeto join this conversation on GitHub.
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, '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");
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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+ - #1768
Merged
Stephen Belanger (Qard) merged 1 commit into
mainfrom 
fix/ai-sdk-cjs-sync-channels
Apr 9, 2026
Merged
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+#1768
Stephen Belanger (Qard) merged 1 commit into
mainfrom 
fix/ai-sdk-cjs-sync-channels
Conversation
@Qard
@QardStephen Belanger (Qard)
commented
Apr 9, 2026

Copy link


Copy Markdown

Collaborator
Summary
  • The CJS bundle entries for streamText and streamObject used kind: "Async" for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult have no .then(), so asyncEnd never fires when the transformer wraps via promise.then()
  • Splits the CJS entries to mirror the existing ESM split (which was already correct in main):

    • >=3.0.0 <4.0.0: kind: "Async" — v3, where the function was genuinely async
    • >=4.0.0: kind: "Sync" + sync channel — v4+, after the sync refactor
  • The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync already exist in ai-sdk-plugin.ts (they were added when the ESM path was fixed), so no plugin change is needed
Test plan
  • ai-sdk-plugin.test.ts — 96 tests pass
  •  Pre-existing test failures in transformation.test.ts / loader-hook.test.ts confirmed unrelated (same failures on main)
🤖 Generated with Claude Code
@Qard@claude
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText…
1ef9d5e
…/streamObject in v4+
The CJS bundle entries for streamText and streamObject used kind: "Async"
for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult
have no .then(), so asyncEnd never fires with wrapPromise's async wrapping.
Split the CJS entries to mirror the existing ESM split:
- >=3.0.0 <4.0.0: kind "Async" (v3, where the function was genuinely async)
- >=4.0.0: kind "Sync" + sync channel (v4+, after the sync refactor)
The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync
already exist in ai-sdk-plugin.ts (added when ESM was fixed), so no
plugin change is needed.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
@Qard
Stephen Belanger (Qard)
merged commit a0f4f12
into
mainApr 9, 2026

54 of 55 checks passed

@Qard
Stephen Belanger (Qard)
deleted the

fix/ai-sdk-cjs-sync-channels

branch
April 9, 2026 18:46
@github-actionsgithub-actionsBot
mentioned this pull request
Apr 15, 2026
 Merged

Luca Forstner (lforst) added a commit
that referenced
this pull request
Apr 16, 2026
@github-actions@lforst
[ci] release (#1835)
6428774
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and publish to npm
yourself or [setup this action to publish
automatically](https://github.com/changesets/action#with-publishing). If
you're not ready to do a release yet, that's fine, whenever you add more
changesets to main, this PR will be updated.
# Releases
## braintrust@3.9.0
### Minor Changes
-
[#1824](#1824)
[`c980e07`](c980e07)
Thanks [@lforst](https://github.com/lforst)! - feat: Add reranking
instrumentation for AI SDK and Openrouter SDK
-
[#1738](#1738)
[`25d25d5`](25d25d5)
Thanks [@AbhiPrasad](https://github.com/AbhiPrasad)! - - feat: Add
instrumentation for @huggingface/inference
([#1807](#1807))
- feat: Add cohere-ai instrumentation
([#1781](#1781))
- fix: Capture anthropic server tool use inputs for streaming APIs
([#1776](#1776))
- feat: Capture grounding metadata for Google GenAI
([#1773](#1773))
- fix(claude-agent-sdk): Don't drop tool spans for spawning subagents
([#1779](#1779))
- feat: Track server tool use metrics for anthropic SDK
([#1772](#1772))
- fix(openai): Collect logprob and refulsals output for streaming APIs
([#1774](#1774))
- perf: Remove zod from deepCopyEvent
([#1796](#1796))
- fix(test): Double timeout for slow OpenAI API tests
([#1794](#1794))
- feat(claude-agent-sdk): Improve task lifecycle and lifecycle details
([#1777](#1777))
- ci(deps): bump actions/github-script from 8.0.0 to 9.0.0
([#1783](#1783))
- ci(deps): bump docker/setup-buildx-action from 3.12.0 to 4.0.0
([#1782](#1782))
- chore: Don't use environment (ie. github deployments) for canary tests
([#1775](#1775))
- chore: Make dependabot less annoying
([#1778](#1778))
- fix(auto-instrumentation): Upgrade @apm-js-collab/code-transformer to
v0.12.0
([#1708](#1708))
- fix(auto-instrumentation): Use sync channel for AI SDK CJS
streamText/streamObject in v4+
([#1768](#1768))
- fix: Give AI SDK top-level api spans type function
([#1769](#1769))
-
[#1814](#1814)
[`d9b9923`](d9b9923)
Thanks [@lforst](https://github.com/lforst)! - - feat: Add per-input
trialCount support to Eval()
-
[#1821](#1821)
[`1b5de11`](1b5de11)
Thanks [@lforst](https://github.com/lforst)! - feat: Instrument Google
GenAI embedContent for text
### Patch Changes
-
[#1825](#1825)
[`f389036`](f389036)
Thanks [@lforst](https://github.com/lforst)! - fix(ai-sdk): Restore
prompt cache metrics
-
[#1813](#1813)
[`2434a0e`](2434a0e)
Thanks [@lforst](https://github.com/lforst)! - fix(openai-agents): End
child spans on trace end
-
[#1836](#1836)
[`5581357`](5581357)
Thanks [@stretpjc](https://github.com/stretpjc)! - feat: Add
x-bt-use-gateway header to allowed CORS headers
---------
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Luca Forstner <luca.forstner@gmail.com>
Sign up for freeto join this conversation on GitHub.
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@lforstLuca Forstner (lforst)lforst approved these changes

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, '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");
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})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+ - #1768
Merged
Stephen Belanger (Qard) merged 1 commit into
mainfrom 
fix/ai-sdk-cjs-sync-channels
Apr 9, 2026
Merged
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+#1768
Stephen Belanger (Qard) merged 1 commit into
mainfrom 
fix/ai-sdk-cjs-sync-channels
Conversation
@Qard
@QardStephen Belanger (Qard)
commented
Apr 9, 2026

Copy link


Copy Markdown

Collaborator
Summary
  • The CJS bundle entries for streamText and streamObject used kind: "Async" for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult have no .then(), so asyncEnd never fires when the transformer wraps via promise.then()
  • Splits the CJS entries to mirror the existing ESM split (which was already correct in main):

    • >=3.0.0 <4.0.0: kind: "Async" — v3, where the function was genuinely async
    • >=4.0.0: kind: "Sync" + sync channel — v4+, after the sync refactor
  • The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync already exist in ai-sdk-plugin.ts (they were added when the ESM path was fixed), so no plugin change is needed
Test plan
  • ai-sdk-plugin.test.ts — 96 tests pass
  •  Pre-existing test failures in transformation.test.ts / loader-hook.test.ts confirmed unrelated (same failures on main)
🤖 Generated with Claude Code
@Qard@claude
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText…
1ef9d5e
…/streamObject in v4+
The CJS bundle entries for streamText and streamObject used kind: "Async"
for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult
have no .then(), so asyncEnd never fires with wrapPromise's async wrapping.
Split the CJS entries to mirror the existing ESM split:
- >=3.0.0 <4.0.0: kind "Async" (v3, where the function was genuinely async)
- >=4.0.0: kind "Sync" + sync channel (v4+, after the sync refactor)
The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync
already exist in ai-sdk-plugin.ts (added when ESM was fixed), so no
plugin change is needed.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
@Qard
Stephen Belanger (Qard)
merged commit a0f4f12
into
mainApr 9, 2026

54 of 55 checks passed

@Qard
Stephen Belanger (Qard)
deleted the

fix/ai-sdk-cjs-sync-channels

branch
April 9, 2026 18:46
@github-actionsgithub-actionsBot
mentioned this pull request
Apr 15, 2026
 Merged

Luca Forstner (lforst) added a commit
that referenced
this pull request
Apr 16, 2026
@github-actions@lforst
[ci] release (#1835)
6428774
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and publish to npm
yourself or [setup this action to publish
automatically](https://github.com/changesets/action#with-publishing). If
you're not ready to do a release yet, that's fine, whenever you add more
changesets to main, this PR will be updated.
# Releases
## braintrust@3.9.0
### Minor Changes
-
[#1824](#1824)
[`c980e07`](c980e07)
Thanks [@lforst](https://github.com/lforst)! - feat: Add reranking
instrumentation for AI SDK and Openrouter SDK
-
[#1738](#1738)
[`25d25d5`](25d25d5)
Thanks [@AbhiPrasad](https://github.com/AbhiPrasad)! - - feat: Add
instrumentation for @huggingface/inference
([#1807](#1807))
- feat: Add cohere-ai instrumentation
([#1781](#1781))
- fix: Capture anthropic server tool use inputs for streaming APIs
([#1776](#1776))
- feat: Capture grounding metadata for Google GenAI
([#1773](#1773))
- fix(claude-agent-sdk): Don't drop tool spans for spawning subagents
([#1779](#1779))
- feat: Track server tool use metrics for anthropic SDK
([#1772](#1772))
- fix(openai): Collect logprob and refulsals output for streaming APIs
([#1774](#1774))
- perf: Remove zod from deepCopyEvent
([#1796](#1796))
- fix(test): Double timeout for slow OpenAI API tests
([#1794](#1794))
- feat(claude-agent-sdk): Improve task lifecycle and lifecycle details
([#1777](#1777))
- ci(deps): bump actions/github-script from 8.0.0 to 9.0.0
([#1783](#1783))
- ci(deps): bump docker/setup-buildx-action from 3.12.0 to 4.0.0
([#1782](#1782))
- chore: Don't use environment (ie. github deployments) for canary tests
([#1775](#1775))
- chore: Make dependabot less annoying
([#1778](#1778))
- fix(auto-instrumentation): Upgrade @apm-js-collab/code-transformer to
v0.12.0
([#1708](#1708))
- fix(auto-instrumentation): Use sync channel for AI SDK CJS
streamText/streamObject in v4+
([#1768](#1768))
- fix: Give AI SDK top-level api spans type function
([#1769](#1769))
-
[#1814](#1814)
[`d9b9923`](d9b9923)
Thanks [@lforst](https://github.com/lforst)! - - feat: Add per-input
trialCount support to Eval()
-
[#1821](#1821)
[`1b5de11`](1b5de11)
Thanks [@lforst](https://github.com/lforst)! - feat: Instrument Google
GenAI embedContent for text
### Patch Changes
-
[#1825](#1825)
[`f389036`](f389036)
Thanks [@lforst](https://github.com/lforst)! - fix(ai-sdk): Restore
prompt cache metrics
-
[#1813](#1813)
[`2434a0e`](2434a0e)
Thanks [@lforst](https://github.com/lforst)! - fix(openai-agents): End
child spans on trace end
-
[#1836](#1836)
[`5581357`](5581357)
Thanks [@stretpjc](https://github.com/stretpjc)! - feat: Add
x-bt-use-gateway header to allowed CORS headers
---------
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Luca Forstner <luca.forstner@gmail.com>
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, '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(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+ - #1768
Merged
Stephen Belanger (Qard) merged 1 commit into
mainfrom 
fix/ai-sdk-cjs-sync-channels
Apr 9, 2026
Merged
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+#1768
Stephen Belanger (Qard) merged 1 commit into
mainfrom 
fix/ai-sdk-cjs-sync-channels
Conversation
@Qard
@QardStephen Belanger (Qard)
commented
Apr 9, 2026

Copy link


Copy Markdown

Collaborator
Summary
  • The CJS bundle entries for streamText and streamObject used kind: "Async" for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult have no .then(), so asyncEnd never fires when the transformer wraps via promise.then()
  • Splits the CJS entries to mirror the existing ESM split (which was already correct in main):

    • >=3.0.0 <4.0.0: kind: "Async" — v3, where the function was genuinely async
    • >=4.0.0: kind: "Sync" + sync channel — v4+, after the sync refactor
  • The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync already exist in ai-sdk-plugin.ts (they were added when the ESM path was fixed), so no plugin change is needed
Test plan
  • ai-sdk-plugin.test.ts — 96 tests pass
  •  Pre-existing test failures in transformation.test.ts / loader-hook.test.ts confirmed unrelated (same failures on main)
🤖 Generated with Claude Code
@Qard@claude
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText…
1ef9d5e
…/streamObject in v4+
The CJS bundle entries for streamText and streamObject used kind: "Async"
for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult
have no .then(), so asyncEnd never fires with wrapPromise's async wrapping.
Split the CJS entries to mirror the existing ESM split:
- >=3.0.0 <4.0.0: kind "Async" (v3, where the function was genuinely async)
- >=4.0.0: kind "Sync" + sync channel (v4+, after the sync refactor)
The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync
already exist in ai-sdk-plugin.ts (added when ESM was fixed), so no
plugin change is needed.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
@Qard
Stephen Belanger (Qard)
merged commit a0f4f12
into
mainApr 9, 2026

54 of 55 checks passed

@Qard
Stephen Belanger (Qard)
deleted the

fix/ai-sdk-cjs-sync-channels

branch
April 9, 2026 18:46
@github-actionsgithub-actionsBot
mentioned this pull request
Apr 15, 2026
 Merged

Luca Forstner (lforst) added a commit
that referenced
this pull request
Apr 16, 2026
@github-actions@lforst
[ci] release (#1835)
6428774
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and publish to npm
yourself or [setup this action to publish
automatically](https://github.com/changesets/action#with-publishing). If
you're not ready to do a release yet, that's fine, whenever you add more
changesets to main, this PR will be updated.
# Releases
## braintrust@3.9.0
### Minor Changes
-
[#1824](#1824)
[`c980e07`](c980e07)
Thanks [@lforst](https://github.com/lforst)! - feat: Add reranking
instrumentation for AI SDK and Openrouter SDK
-
[#1738](#1738)
[`25d25d5`](25d25d5)
Thanks [@AbhiPrasad](https://github.com/AbhiPrasad)! - - feat: Add
instrumentation for @huggingface/inference
([#1807](#1807))
- feat: Add cohere-ai instrumentation
([#1781](#1781))
- fix: Capture anthropic server tool use inputs for streaming APIs
([#1776](#1776))
- feat: Capture grounding metadata for Google GenAI
([#1773](#1773))
- fix(claude-agent-sdk): Don't drop tool spans for spawning subagents
([#1779](#1779))
- feat: Track server tool use metrics for anthropic SDK
([#1772](#1772))
- fix(openai): Collect logprob and refulsals output for streaming APIs
([#1774](#1774))
- perf: Remove zod from deepCopyEvent
([#1796](#1796))
- fix(test): Double timeout for slow OpenAI API tests
([#1794](#1794))
- feat(claude-agent-sdk): Improve task lifecycle and lifecycle details
([#1777](#1777))
- ci(deps): bump actions/github-script from 8.0.0 to 9.0.0
([#1783](#1783))
- ci(deps): bump docker/setup-buildx-action from 3.12.0 to 4.0.0
([#1782](#1782))
- chore: Don't use environment (ie. github deployments) for canary tests
([#1775](#1775))
- chore: Make dependabot less annoying
([#1778](#1778))
- fix(auto-instrumentation): Upgrade @apm-js-collab/code-transformer to
v0.12.0
([#1708](#1708))
- fix(auto-instrumentation): Use sync channel for AI SDK CJS
streamText/streamObject in v4+
([#1768](#1768))
- fix: Give AI SDK top-level api spans type function
([#1769](#1769))
-
[#1814](#1814)
[`d9b9923`](d9b9923)
Thanks [@lforst](https://github.com/lforst)! - - feat: Add per-input
trialCount support to Eval()
-
[#1821](#1821)
[`1b5de11`](1b5de11)
Thanks [@lforst](https://github.com/lforst)! - feat: Instrument Google
GenAI embedContent for text
### Patch Changes
-
[#1825](#1825)
[`f389036`](f389036)
Thanks [@lforst](https://github.com/lforst)! - fix(ai-sdk): Restore
prompt cache metrics
-
[#1813](#1813)
[`2434a0e`](2434a0e)
Thanks [@lforst](https://github.com/lforst)! - fix(openai-agents): End
child spans on trace end
-
[#1836](#1836)
[`5581357`](5581357)
Thanks [@stretpjc](https://github.com/stretpjc)! - feat: Add
x-bt-use-gateway header to allowed CORS headers
---------
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Luca Forstner <luca.forstner@gmail.com>
Sign up for freeto join this conversation on GitHub.
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@lforstLuca Forstner (lforst)lforst approved these changes

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2 participants

@Qard@lforst

, '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(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+ - #1768
Merged
Stephen Belanger (Qard) merged 1 commit into
mainfrom 
fix/ai-sdk-cjs-sync-channels
Apr 9, 2026
Merged
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+#1768
Stephen Belanger (Qard) merged 1 commit into
mainfrom 
fix/ai-sdk-cjs-sync-channels
Conversation
@Qard
@QardStephen Belanger (Qard)
commented
Apr 9, 2026

Copy link


Copy Markdown

Collaborator
Summary
  • The CJS bundle entries for streamText and streamObject used kind: "Async" for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult have no .then(), so asyncEnd never fires when the transformer wraps via promise.then()
  • Splits the CJS entries to mirror the existing ESM split (which was already correct in main):

    • >=3.0.0 <4.0.0: kind: "Async" — v3, where the function was genuinely async
    • >=4.0.0: kind: "Sync" + sync channel — v4+, after the sync refactor
  • The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync already exist in ai-sdk-plugin.ts (they were added when the ESM path was fixed), so no plugin change is needed
Test plan
  • ai-sdk-plugin.test.ts — 96 tests pass
  •  Pre-existing test failures in transformation.test.ts / loader-hook.test.ts confirmed unrelated (same failures on main)
🤖 Generated with Claude Code
@Qard@claude
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText…
1ef9d5e
…/streamObject in v4+
The CJS bundle entries for streamText and streamObject used kind: "Async"
for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult
have no .then(), so asyncEnd never fires with wrapPromise's async wrapping.
Split the CJS entries to mirror the existing ESM split:
- >=3.0.0 <4.0.0: kind "Async" (v3, where the function was genuinely async)
- >=4.0.0: kind "Sync" + sync channel (v4+, after the sync refactor)
The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync
already exist in ai-sdk-plugin.ts (added when ESM was fixed), so no
plugin change is needed.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
@Qard
Stephen Belanger (Qard)
merged commit a0f4f12
into
mainApr 9, 2026

54 of 55 checks passed

@Qard
Stephen Belanger (Qard)
deleted the

fix/ai-sdk-cjs-sync-channels

branch
April 9, 2026 18:46
@github-actionsgithub-actionsBot
mentioned this pull request
Apr 15, 2026
 Merged

Luca Forstner (lforst) added a commit
that referenced
this pull request
Apr 16, 2026
@github-actions@lforst
[ci] release (#1835)
6428774
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and publish to npm
yourself or [setup this action to publish
automatically](https://github.com/changesets/action#with-publishing). If
you're not ready to do a release yet, that's fine, whenever you add more
changesets to main, this PR will be updated.
# Releases
## braintrust@3.9.0
### Minor Changes
-
[#1824](#1824)
[`c980e07`](c980e07)
Thanks [@lforst](https://github.com/lforst)! - feat: Add reranking
instrumentation for AI SDK and Openrouter SDK
-
[#1738](#1738)
[`25d25d5`](25d25d5)
Thanks [@AbhiPrasad](https://github.com/AbhiPrasad)! - - feat: Add
instrumentation for @huggingface/inference
([#1807](#1807))
- feat: Add cohere-ai instrumentation
([#1781](#1781))
- fix: Capture anthropic server tool use inputs for streaming APIs
([#1776](#1776))
- feat: Capture grounding metadata for Google GenAI
([#1773](#1773))
- fix(claude-agent-sdk): Don't drop tool spans for spawning subagents
([#1779](#1779))
- feat: Track server tool use metrics for anthropic SDK
([#1772](#1772))
- fix(openai): Collect logprob and refulsals output for streaming APIs
([#1774](#1774))
- perf: Remove zod from deepCopyEvent
([#1796](#1796))
- fix(test): Double timeout for slow OpenAI API tests
([#1794](#1794))
- feat(claude-agent-sdk): Improve task lifecycle and lifecycle details
([#1777](#1777))
- ci(deps): bump actions/github-script from 8.0.0 to 9.0.0
([#1783](#1783))
- ci(deps): bump docker/setup-buildx-action from 3.12.0 to 4.0.0
([#1782](#1782))
- chore: Don't use environment (ie. github deployments) for canary tests
([#1775](#1775))
- chore: Make dependabot less annoying
([#1778](#1778))
- fix(auto-instrumentation): Upgrade @apm-js-collab/code-transformer to
v0.12.0
([#1708](#1708))
- fix(auto-instrumentation): Use sync channel for AI SDK CJS
streamText/streamObject in v4+
([#1768](#1768))
- fix: Give AI SDK top-level api spans type function
([#1769](#1769))
-
[#1814](#1814)
[`d9b9923`](d9b9923)
Thanks [@lforst](https://github.com/lforst)! - - feat: Add per-input
trialCount support to Eval()
-
[#1821](#1821)
[`1b5de11`](1b5de11)
Thanks [@lforst](https://github.com/lforst)! - feat: Instrument Google
GenAI embedContent for text
### Patch Changes
-
[#1825](#1825)
[`f389036`](f389036)
Thanks [@lforst](https://github.com/lforst)! - fix(ai-sdk): Restore
prompt cache metrics
-
[#1813](#1813)
[`2434a0e`](2434a0e)
Thanks [@lforst](https://github.com/lforst)! - fix(openai-agents): End
child spans on trace end
-
[#1836](#1836)
[`5581357`](5581357)
Thanks [@stretpjc](https://github.com/stretpjc)! - feat: Add
x-bt-use-gateway header to allowed CORS headers
---------
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Luca Forstner <luca.forstner@gmail.com>
Sign up for freeto join this conversation on GitHub.
Already have an account?
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@lforstLuca Forstner (lforst)lforst approved these changes

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@Qard@lforst

, '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(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+ - #1768
Merged
Stephen Belanger (Qard) merged 1 commit into
mainfrom 
fix/ai-sdk-cjs-sync-channels
Apr 9, 2026
Merged
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+#1768
Stephen Belanger (Qard) merged 1 commit into
mainfrom 
fix/ai-sdk-cjs-sync-channels
Conversation
@Qard
@QardStephen Belanger (Qard)
commented
Apr 9, 2026

Copy link


Copy Markdown

Collaborator
Summary
  • The CJS bundle entries for streamText and streamObject used kind: "Async" for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult have no .then(), so asyncEnd never fires when the transformer wraps via promise.then()
  • Splits the CJS entries to mirror the existing ESM split (which was already correct in main):

    • >=3.0.0 <4.0.0: kind: "Async" — v3, where the function was genuinely async
    • >=4.0.0: kind: "Sync" + sync channel — v4+, after the sync refactor
  • The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync already exist in ai-sdk-plugin.ts (they were added when the ESM path was fixed), so no plugin change is needed
Test plan
  • ai-sdk-plugin.test.ts — 96 tests pass
  •  Pre-existing test failures in transformation.test.ts / loader-hook.test.ts confirmed unrelated (same failures on main)
🤖 Generated with Claude Code
@Qard@claude
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText…
1ef9d5e
…/streamObject in v4+
The CJS bundle entries for streamText and streamObject used kind: "Async"
for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult
have no .then(), so asyncEnd never fires with wrapPromise's async wrapping.
Split the CJS entries to mirror the existing ESM split:
- >=3.0.0 <4.0.0: kind "Async" (v3, where the function was genuinely async)
- >=4.0.0: kind "Sync" + sync channel (v4+, after the sync refactor)
The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync
already exist in ai-sdk-plugin.ts (added when ESM was fixed), so no
plugin change is needed.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
@Qard
Stephen Belanger (Qard)
merged commit a0f4f12
into
mainApr 9, 2026

54 of 55 checks passed

@Qard
Stephen Belanger (Qard)
deleted the

fix/ai-sdk-cjs-sync-channels

branch
April 9, 2026 18:46
@github-actionsgithub-actionsBot
mentioned this pull request
Apr 15, 2026
 Merged

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that referenced
this pull request
Apr 16, 2026
@github-actions@lforst
[ci] release (#1835)
6428774
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and publish to npm
yourself or [setup this action to publish
automatically](https://github.com/changesets/action#with-publishing). If
you're not ready to do a release yet, that's fine, whenever you add more
changesets to main, this PR will be updated.
# Releases
## braintrust@3.9.0
### Minor Changes
-
[#1824](#1824)
[`c980e07`](c980e07)
Thanks [@lforst](https://github.com/lforst)! - feat: Add reranking
instrumentation for AI SDK and Openrouter SDK
-
[#1738](#1738)
[`25d25d5`](25d25d5)
Thanks [@AbhiPrasad](https://github.com/AbhiPrasad)! - - feat: Add
instrumentation for @huggingface/inference
([#1807](#1807))
- feat: Add cohere-ai instrumentation
([#1781](#1781))
- fix: Capture anthropic server tool use inputs for streaming APIs
([#1776](#1776))
- feat: Capture grounding metadata for Google GenAI
([#1773](#1773))
- fix(claude-agent-sdk): Don't drop tool spans for spawning subagents
([#1779](#1779))
- feat: Track server tool use metrics for anthropic SDK
([#1772](#1772))
- fix(openai): Collect logprob and refulsals output for streaming APIs
([#1774](#1774))
- perf: Remove zod from deepCopyEvent
([#1796](#1796))
- fix(test): Double timeout for slow OpenAI API tests
([#1794](#1794))
- feat(claude-agent-sdk): Improve task lifecycle and lifecycle details
([#1777](#1777))
- ci(deps): bump actions/github-script from 8.0.0 to 9.0.0
([#1783](#1783))
- ci(deps): bump docker/setup-buildx-action from 3.12.0 to 4.0.0
([#1782](#1782))
- chore: Don't use environment (ie. github deployments) for canary tests
([#1775](#1775))
- chore: Make dependabot less annoying
([#1778](#1778))
- fix(auto-instrumentation): Upgrade @apm-js-collab/code-transformer to
v0.12.0
([#1708](#1708))
- fix(auto-instrumentation): Use sync channel for AI SDK CJS
streamText/streamObject in v4+
([#1768](#1768))
- fix: Give AI SDK top-level api spans type function
([#1769](#1769))
-
[#1814](#1814)
[`d9b9923`](d9b9923)
Thanks [@lforst](https://github.com/lforst)! - - feat: Add per-input
trialCount support to Eval()
-
[#1821](#1821)
[`1b5de11`](1b5de11)
Thanks [@lforst](https://github.com/lforst)! - feat: Instrument Google
GenAI embedContent for text
### Patch Changes
-
[#1825](#1825)
[`f389036`](f389036)
Thanks [@lforst](https://github.com/lforst)! - fix(ai-sdk): Restore
prompt cache metrics
-
[#1813](#1813)
[`2434a0e`](2434a0e)
Thanks [@lforst](https://github.com/lforst)! - fix(openai-agents): End
child spans on trace end
-
[#1836](#1836)
[`5581357`](5581357)
Thanks [@stretpjc](https://github.com/stretpjc)! - feat: Add
x-bt-use-gateway header to allowed CORS headers
---------
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Luca Forstner <luca.forstner@gmail.com>
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, '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(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+ - #1768
Merged
Stephen Belanger (Qard) merged 1 commit into
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fix/ai-sdk-cjs-sync-channels
Apr 9, 2026
Merged
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText/streamObject in v4+#1768
Stephen Belanger (Qard) merged 1 commit into
mainfrom 
fix/ai-sdk-cjs-sync-channels
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@Qard
@QardStephen Belanger (Qard)
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Apr 9, 2026

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Summary
  • The CJS bundle entries for streamText and streamObject used kind: "Async" for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult have no .then(), so asyncEnd never fires when the transformer wraps via promise.then()
  • Splits the CJS entries to mirror the existing ESM split (which was already correct in main):

    • >=3.0.0 <4.0.0: kind: "Async" — v3, where the function was genuinely async
    • >=4.0.0: kind: "Sync" + sync channel — v4+, after the sync refactor
  • The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync already exist in ai-sdk-plugin.ts (they were added when the ESM path was fixed), so no plugin change is needed
Test plan
  • ai-sdk-plugin.test.ts — 96 tests pass
  •  Pre-existing test failures in transformation.test.ts / loader-hook.test.ts confirmed unrelated (same failures on main)
🤖 Generated with Claude Code
@Qard@claude
fix(auto-instrumentation): Use sync channel for AI SDK CJS streamText…
1ef9d5e
…/streamObject in v4+
The CJS bundle entries for streamText and streamObject used kind: "Async"
for all versions (>=3.0.0), but DefaultStreamTextResult/DefaultStreamObjectResult
have no .then(), so asyncEnd never fires with wrapPromise's async wrapping.
Split the CJS entries to mirror the existing ESM split:
- >=3.0.0 <4.0.0: kind "Async" (v3, where the function was genuinely async)
- >=4.0.0: kind "Sync" + sync channel (v4+, after the sync refactor)
The traceSyncStreamChannel handlers for streamTextSync/streamObjectSync
already exist in ai-sdk-plugin.ts (added when ESM was fixed), so no
plugin change is needed.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
@Qard
Stephen Belanger (Qard)
merged commit a0f4f12
into
mainApr 9, 2026

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@Qard
Stephen Belanger (Qard)
deleted the

fix/ai-sdk-cjs-sync-channels

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April 9, 2026 18:46
@github-actionsgithub-actionsBot
mentioned this pull request
Apr 15, 2026
 Merged

Luca Forstner (lforst) added a commit
that referenced
this pull request
Apr 16, 2026
@github-actions@lforst
[ci] release (#1835)
6428774
This PR was opened by the [Changesets
release](https://github.com/changesets/action) GitHub action. When
you're ready to do a release, you can merge this and publish to npm
yourself or [setup this action to publish
automatically](https://github.com/changesets/action#with-publishing). If
you're not ready to do a release yet, that's fine, whenever you add more
changesets to main, this PR will be updated.
# Releases
## braintrust@3.9.0
### Minor Changes
-
[#1824](#1824)
[`c980e07`](c980e07)
Thanks [@lforst](https://github.com/lforst)! - feat: Add reranking
instrumentation for AI SDK and Openrouter SDK
-
[#1738](#1738)
[`25d25d5`](25d25d5)
Thanks [@AbhiPrasad](https://github.com/AbhiPrasad)! - - feat: Add
instrumentation for @huggingface/inference
([#1807](#1807))
- feat: Add cohere-ai instrumentation
([#1781](#1781))
- fix: Capture anthropic server tool use inputs for streaming APIs
([#1776](#1776))
- feat: Capture grounding metadata for Google GenAI
([#1773](#1773))
- fix(claude-agent-sdk): Don't drop tool spans for spawning subagents
([#1779](#1779))
- feat: Track server tool use metrics for anthropic SDK
([#1772](#1772))
- fix(openai): Collect logprob and refulsals output for streaming APIs
([#1774](#1774))
- perf: Remove zod from deepCopyEvent
([#1796](#1796))
- fix(test): Double timeout for slow OpenAI API tests
([#1794](#1794))
- feat(claude-agent-sdk): Improve task lifecycle and lifecycle details
([#1777](#1777))
- ci(deps): bump actions/github-script from 8.0.0 to 9.0.0
([#1783](#1783))
- ci(deps): bump docker/setup-buildx-action from 3.12.0 to 4.0.0
([#1782](#1782))
- chore: Don't use environment (ie. github deployments) for canary tests
([#1775](#1775))
- chore: Make dependabot less annoying
([#1778](#1778))
- fix(auto-instrumentation): Upgrade @apm-js-collab/code-transformer to
v0.12.0
([#1708](#1708))
- fix(auto-instrumentation): Use sync channel for AI SDK CJS
streamText/streamObject in v4+
([#1768](#1768))
- fix: Give AI SDK top-level api spans type function
([#1769](#1769))
-
[#1814](#1814)
[`d9b9923`](d9b9923)
Thanks [@lforst](https://github.com/lforst)! - - feat: Add per-input
trialCount support to Eval()
-
[#1821](#1821)
[`1b5de11`](1b5de11)
Thanks [@lforst](https://github.com/lforst)! - feat: Instrument Google
GenAI embedContent for text
### Patch Changes
-
[#1825](#1825)
[`f389036`](f389036)
Thanks [@lforst](https://github.com/lforst)! - fix(ai-sdk): Restore
prompt cache metrics
-
[#1813](#1813)
[`2434a0e`](2434a0e)
Thanks [@lforst](https://github.com/lforst)! - fix(openai-agents): End
child spans on trace end
-
[#1836](#1836)
[`5581357`](5581357)
Thanks [@stretpjc](https://github.com/stretpjc)! - feat: Add
x-bt-use-gateway header to allowed CORS headers
---------
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Luca Forstner <luca.forstner@gmail.com>
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@lforstLuca Forstner (lforst)lforst approved these changes

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