[bryan-hunter]

Withdrawn — replaced by #3135

The original cache explanation was incorrect: delivered task snapshots already append to durable history. They do not replace earlier snapshots.

The reproduced prefix change occurs in the separate temporary first-turn task-guidance path. #3135 addresses that placement while retaining default task reporting and dispatch.

This branch also proposed dispatching children between parent steps and changing reporting policy. Those broader semantics are not required for the narrow fix and are no longer being pursued here. Completion batching remains independent in #3128.

The earlier live runs did not establish a controlled cache-savings result for this PR.

[vercel]

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Project	Deployment	Actions	Updated
eve-docs	Ready	Preview	Sep 8, 2026 2:51am UTC
eve-docs-4759	Ready	Preview, v0	Sep 8, 2026 2:51am UTC

1 Skipped Deployment

Project	Deployment	Actions	Updated
eve-pkg	Skipped		Sep 8, 2026 2:51am UTC

[github-actions]

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

Key takeaways

• No notable deltas vs main (c952497).

Delta vs main (c952497)

Area	Metric	Baseline	Current	Delta
Package	Packed tarball	8.66 MB	8.66 MB	+3.4 kB ⚠️
Package	Unpacked publish size	32.63 MB	32.63 MB	+5.0 kB ⚠️
Package	Installed footprint	77.71 MB	77.71 MB	+5.0 kB ⚠️
Package	Published files	3851	3851	0
Package	Installed files	7749	7749	0
Package	Installed package instances	33	33	0
Package	Distinct installed package names	32	32	0
Package	Installed dependency edges	51	51	0
Package	Installed optional peer edges	7	7	0
Runtime	Unique function payloads	2	2	0
Runtime	Total function bytes	20.74 MB	20.76 MB	+20.6 kB ⚠️
Runtime	Public routes	18	18	0

Changed function payloads vs main (c952497) (2)

Function	Status	Baseline	Current	Delta	Route changes
functions/__server.func	changed	10.37 MB	10.38 MB	+10.3 kB ⚠️	none
functions/.well-known/workflow/v1/flow.func	changed	10.37 MB	10.38 MB	+10.3 kB ⚠️	none

eve init install

Metric	Baseline	Current	Delta
Installed footprint	116.15 MB	116.15 MB	+5.0 kB ⚠️
Installed packages	113	113	0
dependencies	4	4	0
devDependencies	2	2	0
Dependency package bytes	48.75 MB	48.76 MB	+5.0 kB ⚠️
devDependency package bytes	5.04 MB	5.04 MB	0 B ➖

Build Metadata

• Preset: vercel
• Nitro: nitro@3.0.260903-beta
• Output directory: apps/fixtures/weather-agent/.vercel/output
• Build metadata timestamp: 2026-09-08T02:52:37.865Z
• Route aliases: 18 public, 1 internal (19 total aliases)
• Vercel routes in config: 21
• Severity legend: 🔴 dominant/large, 🟠 notable, 🟡 watch, ⚪ small

Package Drill-Down

Package Details

• Package: eve@0.52.2
• Package directory: packages/eve
• Tarball: 8.66 MB (eve-0.52.2.tgz)
• Unpacked payload: 32.63 MB across 3851 published files
• Installed footprint: 77.71 MB across 7749 installed files
• Installed root package: 31.20 MB
• Installed dependencies: 46.51 MB
• Installed package instances: 33
• Distinct installed package names: 32
• Installed dependency edges: 51
• Installed optional peer edges: 7
• Runtime dependencies: 2
• Peer dependencies: 5 (4 optional)

Installed footprint is measured from an isolated temporary npm install of the packed tarball.
Graph metrics read only package.json files in package directories directly beneath a node_modules boundary, including nested boundaries. Each directory is one package instance; distinct names come from those manifests. Dependency edges count each unique name in dependencies or optionalDependencies per instance; optional peer edges count peerDependencies marked optional.

Heavy installed dependencies

• eve: 31.20 MB (40.2%)
• @rolldown/binding-linux-x64-gnu: 19.31 MB (24.9%)
• ai: 7.01 MB (9.0%)
• zod: 6.41 MB (8.3%)
• undici: 3.51 MB (4.5%)

Publish payload breakdown

Published file size
🔴 dist/src/compiled/shadcn-registry/index.js       [#############...........] 9.76 MB 29.9%
🟠 dist/src/compiled/@photon-ai/chat-adapter-ime... [###.....................] 2.27 MB 7.0%
🟠 dist/src/compiled/@ai-sdk/code-mode/index.js     [#.......................] 1.03 MB 3.1%
🟡 dist/src/compiled/@vercel/blob/index.js          [#.......................] 901.4 kB 2.8%
🟡 dist/src/compiled/_chunks/workflow/signal-exi... [#.......................] 514.6 kB 1.6%
🔴 Other published files                            [########################] 18.17 MB 55.7%

Installed footprint breakdown

Installed package size
🔴 eve                             [########################] 31.20 MB 40.2%
🔴 @rolldown/binding-linux-x64-gnu [###############.........] 19.31 MB 24.9%
🔴 ai                              [#####...................] 7.01 MB 9.0%
🔴 zod                             [#####...................] 6.41 MB 8.3%
🟠 undici                          [###.....................] 3.51 MB 4.5%
🟠 nitro                           [#.......................] 1.89 MB 2.4%
🔴 Other installed packages        [######..................] 8.36 MB 10.8%

Runtime dependencies (2)

Package	Range	Notes
nitro	3.0.260903-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	^3.1.0	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: 116.15 MB across 9645 installed files
• Installed packages: 113 total (107 transitive-only)
• dependencies: 4 direct packages totaling 48.76 MB
• devDependencies: 2 direct packages totaling 5.04 MB
• Other transitive package files: 62.35 MB

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

Heavy installed dependencies

• eve: 31.20 MB (26.9%)
• @typescript/typescript-linux-x64: 27.95 MB (24.1%)
• @rolldown/binding-linux-x64-gnu: 19.31 MB (16.6%)
• zod: 10.37 MB (8.9%)
• ai: 7.01 MB (6.0%)

Installed footprint breakdown

Installed package size
🔴 eve                              [########################] 31.20 MB 26.9%
🔴 @typescript/typescript-linux-x64 [#####################...] 27.95 MB 24.1%
🔴 @rolldown/binding-linux-x64-gnu  [###############.........] 19.31 MB 16.6%
🔴 zod                              [########................] 10.37 MB 8.9%
🔴 ai                               [#####...................] 7.01 MB 6.0%
🟠 undici                           [###.....................] 3.51 MB 3.0%
🔴 Other installed packages         [#############...........] 16.79 MB 14.5%

dependencies (4)

Package	Range	Installed size	Share
@vercel/connect	1.0.0	167.9 kB	0.1%
ai	^7.0.82	7.01 MB	6.0%
eve	file:eve-0.52.2.tgz	31.20 MB	26.9%
zod	4.5.4	10.37 MB	8.9%

devDependencies (2)

Package	Range	Installed size	Share
@types/node	24.x	2.54 MB	2.2%
typescript	7.0.2	2.50 MB	2.2%

Function Drill-Down

Payload Size Graph

Unique function payload size and share of total
🔴 functions/.well-known/workflow/v1/flow.func     [########################] 10.38 MB 50.0%
🔴 functions/__server.func                         [########################] 10.38 MB 50.0%

Top Function Payloads

🟠 functions/.well-known/workflow/v1/flow.func • 1 public route • 10.38 MB

Metric	Value
Public routes	/.well-known/workflow/v1/flow
Runtime	nodejs24.x
Handler	index.mjs
Payload	10.38 MB
Function files	10.38 MB across 112 files
Traced dependencies	0 B
Signal	🟠 Bundled file index.mjs is 2.33 MB (22.5%)

🟠 🔎 Dependency Analysis

📦 Bundled files:

Bundled file size
🟠 index.mjs                        [###########.............] 2.33 MB 22.5%
🟡 _libs/undici.mjs                 [#####...................] 980.8 kB 9.4%
🟡 _chunks/esm-Fqlolk7e.mjs         [###.....................] 723.3 kB 7.0%
🟡 _chunks/chatgpt-model.mjs        [###.....................] 697.1 kB 6.7%
🟡 _chunks/signal-exit-Dsy-TT0V.mjs [###.....................] 616.2 kB 5.9%
🔴 Other bundled files              [########################] 5.03 MB 48.5%

🧾 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 • 17 public routes, 1 internal alias • 10.38 MB

Metric	Value
Public routes	/ /.well-known/workflow/v1/webhook/[token] /eve/v1/activity/[token] /eve/v1/callback/[token] /eve/v1/connections/[name]/callback/[attemptId]/[token] /eve/v1/connections/[name]/callback/[token] /eve/v1/health /eve/v1/info /eve/v1/session /eve/v1/session/[parentSessionId]/subagents/[callId]/[childSessionId]/stream /eve/v1/session/[sessionId] /eve/v1/session/[sessionId]/cancel /eve/v1/session/[sessionId]/clear /eve/v1/session/[sessionId]/compact /eve/v1/session/[sessionId]/reset /eve/v1/session/[sessionId]/stream /eve/v1/task-input/[token]
Internal aliases	/__server
Runtime	nodejs24.x
Handler	index.mjs
Payload	10.38 MB
Function files	10.38 MB across 112 files
Traced dependencies	0 B
Signal	🟠 Bundled file index.mjs is 2.33 MB (22.5%)

🟠 🔎 Dependency Analysis

📦 Bundled files:

Bundled file size
🟠 index.mjs                        [###########.............] 2.33 MB 22.5%
🟡 _libs/undici.mjs                 [#####...................] 980.8 kB 9.5%
🟡 _chunks/esm-Fqlolk7e.mjs         [###.....................] 723.3 kB 7.0%
🟡 _chunks/chatgpt-model.mjs        [###.....................] 697.1 kB 6.7%
🟡 _chunks/signal-exit-Dsy-TT0V.mjs [###.....................] 616.2 kB 5.9%
🔴 Other bundled files              [########################] 5.03 MB 48.5%

🧾 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: 6.20 s -> 5.87 s (-325.5 ms) vs main (c952497).
• Timing is informational: shared GitHub runners are too variable for a hard timing budget.

Detailed phase timings vs `main (c952497)`

Phase	Baseline	Current	Delta
extension.check	12.7 ms	21.3 ms	+8.6 ms
project.resolve	0.4 ms	6.2 ms	+5.8 ms
workspace.create	0.6 ms	1.1 ms	+0.5 ms
host.prepare	886.9 ms	455.4 ms	-431.5 ms
vercel.service-prefix.resolve	2.9 ms	1.6 ms	-1.3 ms
nitro.create	544.6 ms	558.0 ms	+13.4 ms
sandbox.prewarm	280.3 ms	308.7 ms	+28.4 ms
nitro.cache.prepare	0.3 ms	0.2 ms	-0.1 ms
nitro.prepare	0.8 ms	0.7 ms	-0.1 ms
nitro.public-assets	0.7 ms	0.7 ms	0.0 ms
nitro.prerender	0.5 ms	0.5 ms	0.0 ms
nitro.bundle	4.42 s	4.47 s	+51.3 ms
nitro.cache.write	0.3 ms	0.3 ms	0.0 ms
vercel.workflow-function.materialize	43.7 ms	43.5 ms	-0.2 ms
agent-summary.emit	0.7 ms	0.7 ms	0.0 ms
nitro.close	0.2 ms	0.1 ms	-0.1 ms
output.publish	3.3 ms	3.0 ms	-0.3 ms
workspace.remove	2.0 ms	1.9 ms	-0.1 ms

[bryan-hunter]

Superseded by #3135. Correction: delivered task snapshots already append to durable history; they do not rewrite earlier snapshots. The confirmed prefix change is the separate temporary first-turn task guidance in system instructions. #3135 addresses that placement without this PR’s experimental API, dispatch changes, or reporting-policy changes. No controlled provider cache-savings claim is being made.