fix(eve): coalesce task-await results with task wakes by ruiconti · Pull Request #1574 · vercel/eve

ruiconti · 2026-08-03T19:02:38Z

Stacked on #1564. The newly visible duplicate transcript was two real parent turns:

task_await reported the ready task inside the active turn.
The task run's unconditional completion wake was buffered, then started another turn that peeked and reported the same task again.

Data flow

	Before	After
`task_await` starts	aggregator waits for task snapshots	aggregator waits, and parent session state claims those task ids' next ready wakes
task becomes ready	task run delivers a plain wake message	wake payload also carries framework-owned `{ taskId, status }` metadata
parent parks	buffered wake always starts a turn	parked delivery filter consumes a matching await claim and drops that wake; unrelated payloads still run
await turn cancels	no explicit wake ownership	cancellation releases outstanding claims, so later completion still wakes the parent

The filter sits at the parked delivery boundary because that is where both facts are durable: the task-await dispatch's updated parent session state and any task wake buffered while the turn was active. It runs before child-response routing and before a new parent turn is started.

Claims are one-shot. A matching wake consumes its claim; input_required followed by task_send can therefore wake again on completion. task_peek, plain background completion, and cancelled awaits keep their existing wake behavior.

Manual transcript checks against shape 08:

synchronous workshop: one Awaited task, one BUILD LOG v1, no queued Checked task turn;
natural-language background continuation: receipt in 6s with no await, then one Checked task and one BUILD LOG v2 on completion.

Part of #1084.

Signed-off-by: Rui Conti <ruiconti@gmail.com>

vercel · 2026-08-03T19:02:44Z

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Project	Deployment	Actions	Updated (UTC)
eve-docs	Ready	Preview	Aug 3, 2026 7:04pm
eve-docs-4759	Ready	Preview, v0	Aug 3, 2026 7:04pm

github-actions · 2026-08-03T19:06:14Z

Bundle + Package Summary: `apps/fixtures/weather-agent`

Key takeaways

No notable deltas vs tasks/07-idle-wake-rendering (0290c24).

Delta vs `tasks/07-idle-wake-rendering (0290c24)`

Area	Metric	Baseline	Current	Delta
Package	Packed tarball	7.62 MB	7.62 MB	+1.3 kB ⚠️
Package	Unpacked publish size	28.56 MB	28.57 MB	+4.9 kB ⚠️
Package	Installed footprint	71.84 MB	71.84 MB	+4.9 kB ⚠️
Package	Published files	3008	3012	+4
Package	Installed files	6704	6708	+4
Runtime	Unique function payloads	2	2	0
Runtime	Total function bytes	16.99 MB	17.00 MB	+11.5 kB ⚠️
Runtime	Public routes	11	11	0

Changed function payloads vs tasks/07-idle-wake-rendering (0290c24) (2)

Function	Status	Baseline	Current	Delta	Route changes
`functions/__server.func`	changed	8.49 MB	8.50 MB	+5.7 kB ⚠️	none
`functions/.well-known/workflow/v1/flow.func`	changed	8.49 MB	8.50 MB	+5.7 kB ⚠️	none

`eve init` install

Metric	Baseline	Current	Delta
Installed footprint	110.25 MB	110.25 MB	+4.9 kB ⚠️
Installed packages	121	121	0
dependencies	4	4	0
devDependencies	2	2	0
Dependency package bytes	42.94 MB	42.95 MB	+4.9 kB ⚠️
devDependency package bytes	5.04 MB	5.04 MB	0 B ➖

Build Metadata

Preset: vercel
Nitro: nitro@3.0.260610-beta
Output directory: apps/fixtures/weather-agent/.vercel/output
Build metadata timestamp: 2026-08-03T19:05:21.613Z
Route aliases: 11 public, 1 internal (12 total aliases)
Vercel routes in config: 14
Severity legend: 🔴 dominant/large, 🟠 notable, 🟡 watch, ⚪ small

Package Drill-Down

Package Details

Package: eve@0.29.4
Package directory: packages/eve
Tarball: 7.62 MB (eve-0.29.4.tgz)
Unpacked payload: 28.57 MB across 3012 published files
Installed footprint: 71.84 MB across 6708 installed files
Installed root package: 27.21 MB
Installed dependencies: 44.63 MB
Runtime dependencies: 2
Peer dependencies: 5 (4 optional)

Installed footprint is measured from an isolated temporary npm install of the packed tarball.

Heavy installed dependencies

eve: 27.21 MB (37.9%)
@rolldown/binding-linux-x64-gnu: 19.34 MB (26.9%)
ai: 6.57 MB (9.1%)
zod: 5.07 MB (7.1%)
undici: 3.50 MB (4.9%)

Publish payload breakdown

Published file size
🔴 dist/src/compiled/shadcn-registry/index.js       [#################.......] 9.68 MB 33.9%
🟠 dist/src/compiled/@photon-ai/chat-adapter-ime... [####....................] 2.42 MB 8.5%
🟠 dist/src/compiled/experimental-ai-sdk-code-mo... [###.....................] 1.51 MB 5.3%
🟡 dist/src/compiled/_chunks/node/undici-DWL_MYm... [#.......................] 502.4 kB 1.8%
🟡 dist/src/compiled/_chunks/workflow/undici-DWL... [#.......................] 502.4 kB 1.8%
🔴 Other published files                            [########################] 13.95 MB 48.8%

Installed footprint breakdown

Installed package size
🔴 eve                             [########################] 27.21 MB 37.9%
🔴 @rolldown/binding-linux-x64-gnu [#################.......] 19.34 MB 26.9%
🔴 ai                              [######..................] 6.57 MB 9.1%
🔴 zod                             [####....................] 5.07 MB 7.1%
🟠 undici                          [###.....................] 3.50 MB 4.9%
🟠 nitro                           [##......................] 2.41 MB 3.3%
🔴 Other installed packages        [#######.................] 7.74 MB 10.8%

Runtime dependencies (2)

Package	Range	Notes
`nitro`	`3.0.260610-beta`
`undici`	`8.9.0`

Peer dependencies (5)

Package	Range	Notes
`@opentelemetry/api`	`^1.0.0`	optional peer
`ai`	`catalog:`
`braintrust`	`^3.0.0`	optional peer
`just-bash`	`^3.0.0`	optional peer
`microsandbox`	`^0.5.0`	optional peer

eve init install drill-down

`eve init` install details

Command: eve init my-agent
Package manager: npm
Installed footprint: 110.25 MB across 8584 installed files
Installed packages: 121 total (115 transitive-only)
dependencies: 4 direct packages totaling 42.95 MB
devDependencies: 2 direct packages totaling 5.04 MB
Other transitive package files: 62.26 MB

Installed footprint is measured from an isolated temporary eve init my-agent using the current packed eve tarball.

Heavy installed dependencies

@typescript/typescript-linux-x64: 27.95 MB (25.3%)
eve: 27.21 MB (24.7%)
@rolldown/binding-linux-x64-gnu: 19.34 MB (17.5%)
zod: 9.02 MB (8.2%)
ai: 6.57 MB (6.0%)

Installed footprint breakdown

Installed package size
🔴 @typescript/typescript-linux-x64 [########################] 27.95 MB 25.3%
🔴 eve                              [#######################.] 27.21 MB 24.7%
🔴 @rolldown/binding-linux-x64-gnu  [#################.......] 19.34 MB 17.5%
🔴 zod                              [########................] 9.02 MB 8.2%
🔴 ai                               [######..................] 6.57 MB 6.0%
🟠 undici                           [###.....................] 3.50 MB 3.2%
🔴 Other installed packages         [##############..........] 16.66 MB 15.1%

dependencies (4)

Package	Range	Installed size	Share
`@vercel/connect`	`0.4.3`	141.0 kB	0.1%
`ai`	`^7.0.38`	6.57 MB	6.0%
`eve`	`file:eve-0.29.4.tgz`	27.21 MB	24.7%
`zod`	`4.4.3`	9.02 MB	8.2%

devDependencies (2)

Package	Range	Installed size	Share
`@types/node`	`24.x`	2.54 MB	2.3%
`typescript`	`7.0.2`	2.50 MB	2.3%

Function Drill-Down

Payload Size Graph

Unique function payload size and share of total
🔴 functions/.well-known/workflow/v1/flow.func     [########################] 8.50 MB 50.0%
🔴 functions/__server.func                         [########################] 8.50 MB 50.0%

Top Function Payloads

🟠 functions/.well-known/workflow/v1/flow.func • 1 public route • 8.50 MB

Metric	Value
Public routes	`/.well-known/workflow/v1/flow`
Runtime	`nodejs24.x`
Handler	`index.mjs`
Payload	8.50 MB
Function files	8.50 MB across 44 files
Traced dependencies	0 B
Signal	🟠 Bundled file `index.mjs` is 2.34 MB (27.6%)

🟠 🔎 Dependency Analysis

📦 Bundled files:

Bundled file size
🟠 index.mjs                       [########################] 2.34 MB 27.6%
🟠 _chunks/runtime-artifacts.mjs   [################........] 1.61 MB 18.9%
🟡 _libs/undici.mjs                [##########..............] 980.5 kB 11.5%
🟡 _chunks/sandbox.mjs             [########................] 769.0 kB 9.0%
🟡 _libs/@ai-sdk/gateway+[...].mjs [####....................] 432.8 kB 5.1%
🟠 Other bundled files             [########################] 2.37 MB 27.8%

🧾 Vercel Config

{
  "handler": "index.mjs",
  "launcherType": "Nodejs",
  "shouldAddHelpers": false,
  "supportsResponseStreaming": true,
  "runtime": "nodejs24.x",
  "maxDuration": "max",
  "experimentalTriggers": [
    {
      "type": "queue/v2beta",
      "topic": "__eve776561746865722d6167656e74_wkf_workflow_*",
      "consumer": "default",
      "retryAfterSeconds": 5,
      "initialDelaySeconds": 0
    }
  ],
  "environment": {
    "WORKFLOW_PRECONDITION_GUARD": "1"
  }
}

🟠 functions/__server.func • 10 public routes, 1 internal alias • 8.50 MB

Metric	Value
Public routes	`/` `/eve/v1/callback/[token]` `/eve/v1/connections/[name]/callback/[token]` `/eve/v1/health` `/eve/v1/info` `/eve/v1/session` `/eve/v1/session/[sessionId]` `/eve/v1/session/[sessionId]/cancel` `/eve/v1/session/[sessionId]/stream` `/eve/v1/session/reset`
Internal aliases	`/__server`
Runtime	`nodejs24.x`
Handler	`index.mjs`
Payload	8.50 MB
Function files	8.50 MB across 44 files
Traced dependencies	0 B
Signal	🟠 Bundled file `index.mjs` is 2.34 MB (27.6%)

🟠 🔎 Dependency Analysis

📦 Bundled files:

Bundled file size
🟠 index.mjs                       [########################] 2.34 MB 27.6%
🟠 _chunks/runtime-artifacts.mjs   [################........] 1.61 MB 18.9%
🟡 _libs/undici.mjs                [##########..............] 980.5 kB 11.5%
🟡 _chunks/sandbox.mjs             [########................] 769.0 kB 9.0%
🟡 _libs/@ai-sdk/gateway+[...].mjs [####....................] 432.8 kB 5.1%
🟠 Other bundled files             [########################] 2.37 MB 27.8%

🧾 Vercel Config

{
  "handler": "index.mjs",
  "launcherType": "Nodejs",
  "shouldAddHelpers": false,
  "supportsResponseStreaming": true,
  "runtime": "nodejs24.x"
}

Build Timing: `e2e/fixtures/agent-tools-sandbox`

This is an informational timing measurement inside eve build, from preflight through publication. Output-size measurement and profile writing are excluded.

Build mode: deployable Vercel build with sandbox template prewarm included.

Build pipeline: 2.13 s -> 2.20 s (+69.9 ms) vs tasks/07-idle-wake-rendering (0290c24).
Timing is informational: shared GitHub runners are too variable for a hard timing budget.

Detailed phase timings vs `tasks/07-idle-wake-rendering (0290c24)`

Phase	Baseline	Current	Delta
`extension.check`	1.1 ms	4.8 ms	+3.7 ms
`project.resolve`	0.7 ms	1.4 ms	+0.7 ms
`workspace.create`	0.7 ms	1.2 ms	+0.5 ms
`host.prepare`	262.8 ms	379.7 ms	+116.9 ms
`vercel.service-prefix.resolve`	2.7 ms	2.6 ms	-0.1 ms
`nitro.create`	254.4 ms	211.0 ms	-43.4 ms
`sandbox.prewarm`	268.1 ms	257.8 ms	-10.3 ms
`nitro.cache.prepare`	0.3 ms	0.2 ms	-0.1 ms
`nitro.prepare`	1.0 ms	0.8 ms	-0.2 ms
`nitro.public-assets`	0.8 ms	0.8 ms	0.0 ms
`nitro.prerender`	0.5 ms	0.5 ms	0.0 ms
`nitro.bundle`	1.31 s	1.31 s	+1.8 ms
`nitro.cache.write`	0.8 ms	0.4 ms	-0.4 ms
`vercel.workflow-function.materialize`	23.5 ms	23.7 ms	+0.2 ms
`agent-summary.emit`	0.5 ms	0.6 ms	+0.1 ms
`nitro.close`	0.1 ms	0.1 ms	0.0 ms
`output.publish`	3.5 ms	3.7 ms	+0.2 ms
`workspace.remove`	2.4 ms	2.3 ms	-0.1 ms

vercel · 2026-08-03T19:08:55Z

      const views = await readTaskViews(entries);
      if (views.every((view) => isReadyTaskStatus(view.status))) {
-        return { result: createTaskViewsResult(action, views), session };
+        return {


The synchronous task_await branch claims a one-shot wake suppression for already-input_required tasks, which can swallow the task's later completion wake and leave the parent parked forever.

ruiconti · 2026-08-05T17:08:44Z

Coalesced into #1561, which contains tasks 06 through 09 as one background-task TUI rendering PR.

fix(eve): coalesce task-await results with task wakes

5b88dbe

Signed-off-by: Rui Conti <ruiconti@gmail.com>

vercel Bot deployed to Preview – eve-docs-4759 August 3, 2026 19:03 View deployment

vercel Bot deployed to Preview – eve-docs August 3, 2026 19:04 View deployment

vercel Bot reviewed Aug 3, 2026

View reviewed changes

ruiconti mentioned this pull request Aug 3, 2026

fix(eve): finalize background subagent sections at child boundary #1579

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ruiconti closed this Aug 5, 2026

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fix(eve): coalesce task-await results with task wakes - #1574

fix(eve): coalesce task-await results with task wakes#1574
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tasks/07-idle-wake-renderingfrom
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Payload Size Graph

Top Function Payloads

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Bundle + Package Summary: apps/fixtures/weather-agent

Delta vs tasks/07-idle-wake-rendering (0290c24)

eve init install

Package Details

eve init install details

Payload Size Graph

Top Function Payloads

Build Timing: e2e/fixtures/agent-tools-sandbox

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Bundle + Package Summary: `apps/fixtures/weather-agent`

Delta vs `tasks/07-idle-wake-rendering (0290c24)`

`eve init` install

`eve init` install details

Build Timing: `e2e/fixtures/agent-tools-sandbox`

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