[ai] Expose totalUsage and finishReason on DurableAgent stream result by VaguelySerious · Pull Request #1863 · vercel/workflow

VaguelySerious · 2026-04-28T19:04:51Z

Summary

DurableAgentStreamResult (the awaited return of agent.stream()) is missing totalUsage and finishReason. Both fields are already computed in the runtime and passed to the onFinish callback, so the omission from the result is asymmetric and diverges from the AI SDK's GenerateTextResult/StreamTextResult which expose them directly.

This adds them to the interface and to all three return sites (early-abort, paused-tools, and the final return), reusing the existing aggregateUsage(steps) helper.

Test plan

New regression test in durable-agent-compat.test.ts asserts result.totalUsage and result.finishReason after a normal stream
Existing 187 tests still pass (188 with the new one)
Build passes (pnpm build in packages/ai)

🤖 Generated with Claude Code

The DurableAgentStreamResult interface omitted totalUsage and finishReason, which were already computed and passed to the onFinish callback. This made them unreachable for callers that await stream() directly, and diverged from the AI SDK's GenerateTextResult/StreamTextResult shape. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

vercel · 2026-04-28T19:04:57Z

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changeset-bot · 2026-04-28T19:04:59Z

🦋 Changeset detected

Latest commit: 8e78f75

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@workflow/ai	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

github-actions · 2026-04-28T19:05:02Z

🧪 E2E Test Results

❌ Some tests failed

Summary

	Passed	Failed	Skipped	Total
✅ ▲ Vercel Production	978	0	67	1045
❌ 💻 Local Development	1052	2	86	1140
✅ 📦 Local Production	1054	0	86	1140
✅ 🐘 Local Postgres	1054	0	86	1140
✅ 📋 Other	267	0	18	285
Total	4405	2	343	4750

❌ Failed Tests

💻 Local Development (2 failed)

vite-stable (2 failed):

error handling error propagation step errors basic step error preserves message and stack trace
error handling error propagation step errors cross-file step error preserves message and function names in stack

Details by Category

✅ ▲ Vercel Production

App	Passed	Skipped
✅ astro	88	7
✅ example	88	7
✅ express	88	7
✅ fastify	88	7
✅ hono	88	7
✅ nextjs-turbopack	93	2
✅ nextjs-webpack	93	2
✅ nitro	88	7
✅ nuxt	88	7
✅ sveltekit	88	7
✅ vite	88	7

❌ 💻 Local Development

App	Passed	Failed	Skipped
✅ astro-stable	89	0	6
✅ express-stable	89	0	6
✅ fastify-stable	89	0	6
✅ hono-stable	89	0	6
✅ nextjs-turbopack-canary	76	0	19
✅ nextjs-turbopack-stable	95	0	0
✅ nextjs-webpack-canary	76	0	19
✅ nextjs-webpack-stable	95	0	0
✅ nitro-stable	89	0	6
✅ nuxt-stable	89	0	6
✅ sveltekit-stable	89	0	6
❌ vite-stable	87	2	6

✅ 📦 Local Production

App	Passed	Skipped
✅ astro-stable	89	6
✅ express-stable	89	6
✅ fastify-stable	89	6
✅ hono-stable	89	6
✅ nextjs-turbopack-canary	76	19
✅ nextjs-turbopack-stable	95	0
✅ nextjs-webpack-canary	76	19
✅ nextjs-webpack-stable	95	0
✅ nitro-stable	89	6
✅ nuxt-stable	89	6
✅ sveltekit-stable	89	6
✅ vite-stable	89	6

✅ 🐘 Local Postgres

App	Passed	Skipped
✅ astro-stable	89	6
✅ express-stable	89	6
✅ fastify-stable	89	6
✅ hono-stable	89	6
✅ nextjs-turbopack-canary	76	19
✅ nextjs-turbopack-stable	95	0
✅ nextjs-webpack-canary	76	19
✅ nextjs-webpack-stable	95	0
✅ nitro-stable	89	6
✅ nuxt-stable	89	6
✅ sveltekit-stable	89	6
✅ vite-stable	89	6

✅ 📋 Other

App	Passed	Skipped
✅ e2e-local-dev-nest-stable	89	6
✅ e2e-local-postgres-nest-stable	89	6
✅ e2e-local-prod-nest-stable	89	6

📋 View full workflow run

❌ Some E2E test jobs failed:

Vercel Prod: success
Local Dev: failure
Local Prod: success
Local Postgres: success
Windows: cancelled

Check the workflow run for details.

github-actions · 2026-04-28T19:05:03Z

📊 Benchmark Results

📈 Comparing against baseline from main branch. Green 🟢 = faster, Red 🔺 = slower.

workflow with no steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Express	0.041s (-6.8% 🟢)	1.005s (~)	0.964s	10	1.00x
💻 Local	Nitro	0.044s (+1.6%)	1.005s (~)	0.961s	10	1.06x
💻 Local	Next.js (Turbopack)	0.046s	1.005s	0.959s	10	1.12x
🐘 Postgres	Nitro	0.057s (-40.5% 🟢)	1.011s (-3.1%)	0.954s	10	1.37x
🐘 Postgres	Next.js (Turbopack)	0.059s	1.011s	0.952s	10	1.43x
🐘 Postgres	Express	0.061s (+5.5% 🔺)	1.012s (~)	0.951s	10	1.48x

workflow with 1 step

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	1.116s	2.005s	0.890s	10	1.00x
💻 Local	Express	1.130s (~)	2.006s (~)	0.876s	10	1.01x
💻 Local	Nitro	1.132s (~)	2.006s (~)	0.874s	10	1.01x
🐘 Postgres	Nitro	1.143s (~)	2.010s (~)	0.867s	10	1.02x
🐘 Postgres	Next.js (Turbopack)	1.144s	2.011s	0.867s	10	1.02x
🐘 Postgres	Express	1.154s (+0.6%)	2.010s (~)	0.856s	10	1.03x

workflow with 10 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	10.827s	11.023s	0.196s	3	1.00x
🐘 Postgres	Nitro	10.871s (~)	11.024s (~)	0.153s	3	1.00x
🐘 Postgres	Express	10.902s (-0.6%)	11.023s (~)	0.122s	3	1.01x
🐘 Postgres	Next.js (Turbopack)	10.916s	11.019s	0.104s	3	1.01x
💻 Local	Nitro	10.941s (~)	11.024s (~)	0.083s	3	1.01x
💻 Local	Express	10.949s (~)	11.024s (~)	0.075s	3	1.01x

workflow with 25 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	14.475s	15.023s	0.548s	4	1.00x
💻 Local	Next.js (Turbopack)	14.540s	15.030s	0.490s	4	1.00x
🐘 Postgres	Express	14.577s (~)	15.030s (~)	0.453s	4	1.01x
🐘 Postgres	Nitro	14.608s (~)	15.031s (~)	0.423s	4	1.01x
💻 Local	Nitro	14.955s (-0.7%)	15.029s (-6.2% 🟢)	0.074s	4	1.03x
💻 Local	Express	15.047s (+0.5%)	15.781s (+5.0% 🔺)	0.734s	4	1.04x

workflow with 50 sequential steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	13.921s	14.167s	0.246s	7	1.00x
🐘 Postgres	Express	14.067s (~)	14.878s (+2.0%)	0.812s	7	1.01x
🐘 Postgres	Nitro	14.150s (+1.3%)	14.880s (+4.0%)	0.730s	7	1.02x
💻 Local	Next.js (Turbopack)	15.686s	16.029s	0.343s	6	1.13x
💻 Local	Nitro	16.359s (-2.5%)	17.031s (~)	0.672s	6	1.18x
💻 Local	Express	16.886s (+1.7%)	17.033s (~)	0.147s	6	1.21x

Promise.all with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.235s	2.010s	0.775s	15	1.00x
🐘 Postgres	Nitro	1.278s (~)	2.010s (~)	0.732s	15	1.03x
🐘 Postgres	Express	1.285s (+2.0%)	2.009s (~)	0.724s	15	1.04x
💻 Local	Next.js (Turbopack)	1.486s	2.005s	0.520s	15	1.20x
💻 Local	Nitro	1.506s (-7.7% 🟢)	2.006s (-3.3%)	0.500s	15	1.22x
💻 Local	Express	1.531s (+2.8%)	2.005s (~)	0.474s	15	1.24x

Promise.all with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	2.317s (-1.4%)	3.009s (~)	0.692s	10	1.00x
🐘 Postgres	Next.js (Turbopack)	2.388s	3.008s	0.620s	10	1.03x
🐘 Postgres	Express	2.393s (+1.4%)	3.009s (~)	0.616s	10	1.03x
💻 Local	Next.js (Turbopack)	2.602s	3.008s	0.407s	10	1.12x
💻 Local	Nitro	2.935s (-6.6% 🟢)	3.308s (-14.8% 🟢)	0.373s	10	1.27x
💻 Local	Express	2.981s (+1.0%)	3.564s (+3.2%)	0.583s	9	1.29x

Promise.all with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	3.462s (~)	4.009s (~)	0.546s	8	1.00x
🐘 Postgres	Express	3.495s (~)	4.012s (~)	0.516s	8	1.01x
🐘 Postgres	Next.js (Turbopack)	3.655s	4.011s	0.355s	8	1.06x
💻 Local	Next.js (Turbopack)	7.057s	7.515s	0.458s	4	2.04x
💻 Local	Nitro	7.324s (-12.3% 🟢)	8.018s (-11.1% 🟢)	0.694s	4	2.12x
💻 Local	Express	8.498s (+1.9%)	9.022s (~)	0.523s	4	2.45x

Promise.race with 10 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.224s	2.009s	0.785s	15	1.00x
🐘 Postgres	Express	1.249s (-0.6%)	2.008s (~)	0.759s	15	1.02x
🐘 Postgres	Nitro	1.256s (~)	2.009s (~)	0.753s	15	1.03x
💻 Local	Next.js (Turbopack)	1.468s	2.005s	0.537s	15	1.20x
💻 Local	Nitro	1.508s (-19.2% 🟢)	2.005s (-14.3% 🟢)	0.497s	15	1.23x
💻 Local	Express	1.530s (-19.2% 🟢)	2.006s (-15.1% 🟢)	0.476s	15	1.25x

Promise.race with 25 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	2.357s (+0.7%)	3.008s (~)	0.651s	10	1.00x
🐘 Postgres	Next.js (Turbopack)	2.434s	3.009s	0.575s	10	1.03x
🐘 Postgres	Nitro	2.452s (+4.8%)	3.111s (+3.4%)	0.660s	10	1.04x
💻 Local	Next.js (Turbopack)	2.699s	3.008s	0.309s	10	1.15x
💻 Local	Nitro	2.817s (-8.1% 🟢)	3.007s (-22.6% 🟢)	0.190s	10	1.20x
💻 Local	Express	3.109s (-0.8%)	4.009s (+6.6% 🔺)	0.900s	8	1.32x

Promise.race with 50 concurrent steps

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Express	3.484s (~)	4.012s (~)	0.528s	8	1.00x
🐘 Postgres	Nitro	3.577s (+2.8%)	4.014s (~)	0.438s	8	1.03x
🐘 Postgres	Next.js (Turbopack)	3.654s	4.014s	0.360s	8	1.05x
💻 Local	Next.js (Turbopack)	7.383s	7.771s	0.388s	4	2.12x
💻 Local	Nitro	7.775s (-15.0% 🟢)	8.273s (-17.5% 🟢)	0.498s	4	2.23x
💻 Local	Express	9.062s (+3.0%)	9.521s (+2.7%)	0.460s	4	2.60x

workflow with 10 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.790s	1.007s	0.217s	60	1.00x
🐘 Postgres	Express	0.832s (-0.8%)	1.007s (-1.6%)	0.174s	60	1.05x
💻 Local	Next.js (Turbopack)	0.849s	1.004s	0.155s	60	1.07x
🐘 Postgres	Nitro	0.938s (+14.4% 🔺)	1.099s (+9.2% 🔺)	0.160s	55	1.19x
💻 Local	Express	0.989s (~)	1.178s (+9.5% 🔺)	0.189s	52	1.25x
💻 Local	Nitro	1.007s (+2.7%)	1.505s (+37.6% 🔺)	0.498s	40	1.28x

workflow with 25 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	1.968s	2.228s	0.260s	41	1.00x
🐘 Postgres	Express	2.011s (+1.8%)	2.580s (+14.3% 🔺)	0.569s	35	1.02x
🐘 Postgres	Nitro	2.286s (+18.6% 🔺)	3.011s (+43.3% 🔺)	0.725s	30	1.16x
💻 Local	Next.js (Turbopack)	2.654s	3.008s	0.353s	30	1.35x
💻 Local	Nitro	3.025s (~)	3.609s (-4.0%)	0.584s	25	1.54x
💻 Local	Express	3.125s (+3.6%)	3.966s (+10.6% 🔺)	0.841s	23	1.59x

workflow with 50 sequential data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	4.011s	4.456s	0.445s	27	1.00x
🐘 Postgres	Express	4.141s (+3.8%)	4.972s (+13.8% 🔺)	0.831s	25	1.03x
🐘 Postgres	Nitro	4.578s (+11.6% 🔺)	5.054s (+9.8% 🔺)	0.476s	24	1.14x
💻 Local	Next.js (Turbopack)	8.484s	9.088s	0.604s	14	2.12x
💻 Local	Nitro	8.963s (-3.6%)	9.401s (-6.2% 🟢)	0.439s	13	2.23x
💻 Local	Express	9.429s (+2.4%)	10.019s (~)	0.590s	12	2.35x

workflow with 10 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.269s	1.007s	0.737s	60	1.00x
🐘 Postgres	Express	0.281s (~)	1.007s (~)	0.725s	60	1.04x
🐘 Postgres	Nitro	0.306s (+8.0% 🔺)	1.008s (~)	0.702s	60	1.14x
💻 Local	Next.js (Turbopack)	0.563s	1.021s	0.458s	59	2.09x
💻 Local	Nitro	0.567s (-6.2% 🟢)	1.021s (~)	0.454s	59	2.10x
💻 Local	Express	0.616s (+10.0% 🔺)	1.005s (~)	0.388s	60	2.29x

workflow with 25 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.488s	1.007s	0.518s	90	1.00x
🐘 Postgres	Nitro	0.496s (~)	1.007s (~)	0.510s	90	1.02x
🐘 Postgres	Express	0.497s (-2.6%)	1.006s (~)	0.509s	90	1.02x
💻 Local	Nitro	2.360s (-7.0% 🟢)	3.008s (~)	0.648s	30	4.84x
💻 Local	Next.js (Turbopack)	2.496s	3.008s	0.512s	30	5.11x
💻 Local	Express	2.597s (+3.3%)	3.009s (~)	0.412s	30	5.32x

workflow with 50 concurrent data payload steps (10KB)

💻 Local Development

World	Framework	Workflow Time	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Next.js (Turbopack)	0.766s	1.007s	0.241s	120	1.00x
🐘 Postgres	Nitro	0.782s (-1.0%)	1.007s (~)	0.225s	120	1.02x
🐘 Postgres	Express	0.789s (-3.6%)	1.008s (-0.9%)	0.219s	120	1.03x
💻 Local	Next.js (Turbopack)	10.177s	10.862s	0.684s	12	13.28x
💻 Local	Nitro	10.213s (-8.7% 🟢)	10.934s (-6.3% 🟢)	0.721s	11	13.33x
💻 Local	Express	11.340s (+1.3%)	12.028s (+0.7%)	0.688s	10	14.80x

Stream Benchmarks (includes TTFB metrics)

workflow with stream

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
💻 Local	🥇 Next.js (Turbopack)	0.171s	1.002s	0.010s	1.016s	0.845s	10	1.00x
🐘 Postgres	Next.js (Turbopack)	0.196s	1.001s	0.001s	1.011s	0.816s	10	1.15x
💻 Local	Express	0.202s (+1.4%)	1.004s (~)	0.011s (-9.1% 🟢)	1.017s (~)	0.815s	10	1.18x
💻 Local	Nitro	0.205s (-4.2%)	1.004s (~)	0.010s (-20.8% 🟢)	1.016s (~)	0.811s	10	1.20x
🐘 Postgres	Nitro	0.215s (+4.7%)	0.997s (~)	0.001s (-20.0% 🟢)	1.009s (~)	0.795s	10	1.26x
🐘 Postgres	Express	0.223s (+8.6% 🔺)	1.000s (~)	0.001s (-18.8% 🟢)	1.010s (~)	0.788s	10	1.31x

stream pipeline with 5 transform steps (1MB)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.606s (-2.9%)	1.004s (~)	0.005s (+10.7% 🔺)	1.022s (~)	0.416s	59	1.00x
🐘 Postgres	Next.js (Turbopack)	0.624s	1.009s	0.004s	1.023s	0.398s	59	1.03x
🐘 Postgres	Express	0.630s (~)	1.023s (+1.6%)	0.004s (+13.0% 🔺)	1.040s (+1.7%)	0.410s	58	1.04x
💻 Local	Next.js (Turbopack)	0.774s	1.012s	0.010s	1.117s	0.343s	54	1.28x
💻 Local	Nitro	0.853s (+1.7%)	1.011s (~)	0.011s (+21.1% 🔺)	1.117s (~)	0.264s	54	1.41x
💻 Local	Express	0.855s (+13.0% 🔺)	1.012s (-1.6%)	0.010s (+1.5%)	1.116s (+7.4% 🔺)	0.261s	54	1.41x

10 parallel streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	0.920s (-5.1% 🟢)	1.067s (-14.4% 🟢)	0.000s (+28.6% 🔺)	1.079s (-14.2% 🟢)	0.159s	56	1.00x
🐘 Postgres	Next.js (Turbopack)	0.920s	1.112s	0.000s	1.119s	0.199s	54	1.00x
🐘 Postgres	Express	0.976s (+1.5%)	1.221s (-4.5%)	0.000s (-53.1% 🟢)	1.234s (-5.6% 🟢)	0.258s	49	1.06x
💻 Local	Nitro	1.195s (-2.3%)	2.019s (~)	0.000s (+133.3% 🔺)	2.021s (~)	0.826s	30	1.30x
💻 Local	Express	1.251s (+2.2%)	2.022s (~)	0.000s (-60.0% 🟢)	2.024s (~)	0.772s	30	1.36x
💻 Local	Next.js (Turbopack)	1.254s	2.020s	0.000s	2.023s	0.769s	30	1.36x

fan-out fan-in 10 streams (1MB each)

💻 Local Development

World	Framework	Workflow Time	TTFB	Slurp	Wall Time	Overhead	Samples	vs Fastest
🐘 Postgres	🥇 Nitro	1.738s (-3.0%)	2.101s (-1.9%)	0.000s (-100.0% 🟢)	2.113s (-2.8%)	0.375s	29	1.00x
🐘 Postgres	Express	1.752s (-1.1%)	2.141s (-1.7%)	0.000s (NaN%)	2.152s (-2.1%)	0.401s	28	1.01x
🐘 Postgres	Next.js (Turbopack)	1.817s	2.107s	0.000s	2.116s	0.299s	29	1.05x
💻 Local	Nitro	3.308s (-2.4%)	3.971s (-1.5%)	0.000s (-29.7% 🟢)	3.974s (-1.5%)	0.666s	16	1.90x
💻 Local	Express	3.597s (+3.7%)	4.166s (+3.3%)	0.000s (-41.7% 🟢)	4.169s (+3.3%)	0.572s	15	2.07x
💻 Local	Next.js (Turbopack)	4.159s	4.178s	0.000s	4.539s	0.380s	14	2.39x

Summary

Fastest Framework by World

Winner determined by most benchmark wins

World	🥇 Fastest Framework	Wins
💻 Local	Next.js (Turbopack)	17/21
🐘 Postgres	Next.js (Turbopack)	11/21

Fastest World by Framework

Winner determined by most benchmark wins

Framework	🥇 Fastest World	Wins
Express	🐘 Postgres	18/21
Next.js (Turbopack)	🐘 Postgres	17/21
Nitro	🐘 Postgres	18/21

Column Definitions

Workflow Time: Runtime reported by workflow (completedAt - createdAt) - primary metric
TTFB: Time to First Byte - time from workflow start until first stream byte received (stream benchmarks only)
Slurp: Time from first byte to complete stream consumption (stream benchmarks only)
Wall Time: Total testbench time (trigger workflow + poll for result)
Overhead: Testbench overhead (Wall Time - Workflow Time)
Samples: Number of benchmark iterations run
vs Fastest: How much slower compared to the fastest configuration for this benchmark

Worlds:

💻 Local: In-memory filesystem world (local development)
🐘 Postgres: PostgreSQL database world (local development)
▲ Vercel: Vercel production/preview deployment
🌐 Turso: Community world (local development)
🌐 MongoDB: Community world (local development)
🌐 Redis: Community world (local development)
🌐 Jazz: Community world (local development)

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VaguelySerious · 2026-04-28T19:26:55Z

CI status (interim)

Two failures, both pre-existing on main — not introduced by this PR:

E2E Local Dev Tests (vite - stable) — failing tests basic step error preserves message and stack trace and cross-file step error preserves message and function names in stack both fail on the most recent main run (job 73444472541) with the same assertion. Unrelated to AI SDK changes.
Docs Preview Smoke Checks — Vercel API returning 403 invalidToken while polling for the preview deployment. Infra/credential issue, not code.

12 E2E Postgres jobs still pending; will check back when they complete.

VaguelySerious · 2026-04-28T19:40:53Z

CI status (final)

88 pass, 5 skipping, 5 still-running benchmarks, 4 failures — none caused by this PR.

Check	Status	Verdict
`E2E Local Dev Tests (vite - stable)`	fail	Same 2 tests (`basic step error preserves message and stack trace`, `cross-file step error preserves message and function names in stack`) fail on the latest main run (job 73444472541). Pre-existing.
`E2E Windows Tests`	fail (cancelled at 30m)	`dev.test.ts > should rebuild on imported step dependency change` timed out on hot-reload polling (`Failed to trigger workflow "importedStepOnlyWorkflow": 500`). Same 30m20s/30m24s cancellation pattern visible on PRs #1857 and #1854 — known Windows-job timeout flake, unrelated to AI SDK changes.
`Docs Preview Smoke Checks`	fail	Vercel API `403 invalidToken` while polling for the preview deployment URL. Infra/credential issue, the deployment itself succeeded.
`E2E Required Check`	fail (3s)	Aggregator that reports failure when any of the above E2E jobs fail. No independent signal.

The 5 pending Benchmark * jobs are still in progress (>30 min in) and are independent of type/contract changes in @workflow/ai.

Marking the PR as ready for review when you take a look.

vercel Bot deployed to Preview – workflow-web April 28, 2026 19:05 View deployment

vercel Bot deployed to Preview – workbench-hono-workflow April 28, 2026 19:05 View deployment

vercel Bot deployed to Preview – workbench-express-workflow April 28, 2026 19:05 View deployment

vercel Bot deployed to Preview – workbench-nitro-workflow April 28, 2026 19:05 View deployment

vercel Bot deployed to Preview – workbench-sveltekit-workflow April 28, 2026 19:06 View deployment

vercel Bot deployed to Preview – workbench-vite-workflow April 28, 2026 19:06 View deployment

vercel Bot deployed to Preview – workbench-fastify-workflow April 28, 2026 19:06 View deployment

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vercel Bot deployed to Preview – workbench-nuxt-workflow April 28, 2026 19:06 View deployment

vercel Bot deployed to Preview – workflow-docs April 28, 2026 19:06 View deployment

vercel Bot deployed to Preview – example-nextjs-workflow-turbopack April 28, 2026 19:06 View deployment

vercel Bot deployed to Preview – example-nextjs-workflow-webpack April 28, 2026 19:06 View deployment

vercel Bot deployed to Preview – workflow-swc-playground April 28, 2026 19:08 View deployment

VaguelySerious mentioned this pull request Apr 28, 2026

fix(workflow): expose totalUsage and finishReason on stream result vercel/ai#14786

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VaguelySerious requested a review from gr2m April 28, 2026 19:31

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🧪 E2E Test Results

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📊 Benchmark Results

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VaguelySerious commented Apr 28, 2026

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VaguelySerious commented Apr 28, 2026

CI status (final)

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