feat(eve): add flag-gated task tools, undiscoverable by default

[ruiconti]

Part 3/5 of the experimental.tasks stack, on top of #1518. The model-facing controls; nothing dispatches them until part 4.

What

With the flag on, the root node's harness tool map gains four tools. Without it, the tool map, prompt, and event stream are unchanged (existing tests pass unmodified).

How each executes

• task_peek / task_await / task_cancel are execute-less runtime actions with a new task-control kind. Before: only subagent calls carried runtimeAction and parked into the pending batch. Now these calls park the same way, and the dispatch step — which holds durable session state and world access that tool execute doesn't — runs them (part 4).
• task_sleep executes in-loop: it records the existing durable turn sleep and returns, same as the public sleep tool.

Gating

Injection mirrors the implicit agent tool: inline definitions in createNodeHarnessTools, authored tools with the same name shadow, disableTool(name) removes, and advertised-tools hides them from any child-shaped session — root-node self-delegated children share the root's config, so session shape is the only signal separating them. Dynamic workflow interrupts reject task-control tools explicitly.

task_send is part 5; TUI presentation copy for the new names rides along.

Part of #1084.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
eve-docs	Ready	Preview	Aug 1, 2026 10:15pm
eve-docs-4759	Ready	Preview, v0	Aug 1, 2026 10:15pm

[github-actions]

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

Key takeaways

• No notable deltas vs tasks/02-foundation (bea6c0e).

Delta vs tasks/02-foundation (bea6c0e)

Area	Metric	Baseline	Current	Delta
Package	Packed tarball	7.61 MB	7.61 MB	+1.9 kB ⚠️
Package	Unpacked publish size	28.51 MB	28.52 MB	+10.2 kB ⚠️
Package	Installed footprint	85.50 MB	85.51 MB	+10.2 kB ⚠️
Package	Published files	2988	2990	+2
Package	Installed files	6783	6785	+2
Runtime	Unique function payloads	2	2	0
Runtime	Total function bytes	16.89 MB	16.90 MB	+10.9 kB ⚠️
Runtime	Public routes	11	11	0

Changed function payloads vs tasks/02-foundation (bea6c0e) (2)

Function	Status	Baseline	Current	Delta	Route changes
functions/__server.func	changed	8.44 MB	8.45 MB	+5.5 kB ⚠️	none
functions/.well-known/workflow/v1/flow.func	changed	8.44 MB	8.45 MB	+5.5 kB ⚠️	none

eve init install

Metric	Baseline	Current	Delta
Installed footprint	123.91 MB	123.92 MB	+10.2 kB ⚠️
Installed packages	128	128	0
dependencies	4	4	0
devDependencies	2	2	0
Dependency package bytes	42.89 MB	42.90 MB	+10.2 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: 2026-08-01T22:16:06.135Z
• 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: 7.61 MB (eve-0.29.4.tgz)
• Unpacked payload: 28.52 MB across 2990 published files
• Installed footprint: 85.51 MB across 6785 installed files
• Installed root package: 27.16 MB
• Installed dependencies: 58.34 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: 27.16 MB (31.8%)
• @rolldown/binding-linux-x64-gnu: 19.28 MB (22.5%)
• @rolldown/binding-wasm32-wasi: 10.66 MB (12.5%)
• ai: 6.57 MB (7.7%)
• zod: 5.07 MB (5.9%)

Publish payload breakdown

Published file size
🔴 dist/src/compiled/shadcn-registry/index.js       [#################.......] 9.68 MB 34.0%
🟠 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                            [########################] 13.90 MB 48.8%

Installed footprint breakdown

Installed package size
🔴 eve                             [########################] 27.16 MB 31.8%
🔴 @rolldown/binding-linux-x64-gnu [#################.......] 19.28 MB 22.5%
🔴 @rolldown/binding-wasm32-wasi   [#########...............] 10.66 MB 12.5%
🔴 ai                              [######..................] 6.57 MB 7.7%
🔴 zod                             [####....................] 5.07 MB 5.9%
🟠 undici                          [###.....................] 3.50 MB 4.1%
🔴 Other installed packages        [############............] 13.26 MB 15.5%

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: 123.92 MB across 8661 installed files
• Installed packages: 128 total (122 transitive-only)
• dependencies: 4 direct packages totaling 42.90 MB
• devDependencies: 2 direct packages totaling 5.04 MB
• Other transitive package files: 75.98 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 (22.6%)
• eve: 27.16 MB (21.9%)
• @rolldown/binding-linux-x64-gnu: 19.28 MB (15.6%)
• @rolldown/binding-wasm32-wasi: 10.66 MB (8.6%)
• zod: 9.02 MB (7.3%)

Installed footprint breakdown

Installed package size
🔴 @typescript/typescript-linux-x64 [########################] 27.95 MB 22.6%
🔴 eve                              [#######################.] 27.16 MB 21.9%
🔴 @rolldown/binding-linux-x64-gnu  [#################.......] 19.28 MB 15.6%
🔴 @rolldown/binding-wasm32-wasi    [#########...............] 10.66 MB 8.6%
🔴 zod                              [########................] 9.02 MB 7.3%
🔴 ai                               [######..................] 6.57 MB 5.3%
🔴 Other installed packages         [####################....] 23.27 MB 18.8%

dependencies (4)

Package	Range	Installed size	Share
@vercel/connect	0.4.3	141.0 kB	0.1%
ai	^7.0.38	6.57 MB	5.3%
eve	file:eve-0.29.4.tgz	27.16 MB	21.9%
zod	4.4.3	9.02 MB	7.3%

devDependencies (2)

Package	Range	Installed size	Share
@types/node	24.x	2.54 MB	2.1%
typescript	7.0.2	2.50 MB	2.0%

Function Drill-Down

Payload Size Graph

Unique function payload size and share of total
🔴 functions/.well-known/workflow/v1/flow.func     [########################] 8.45 MB 50.0%
🔴 functions/__server.func                         [########################] 8.45 MB 50.0%

Top Function Payloads

🟠 functions/.well-known/workflow/v1/flow.func • 1 public route • 8.45 MB

Metric	Value
Public routes	/.well-known/workflow/v1/flow
Runtime	nodejs24.x
Handler	index.mjs
Payload	8.45 MB
Function files	8.45 MB across 44 files
Traced dependencies	0 B
Signal	🟠 Bundled file index.mjs is 2.29 MB (27.2%)

🟠 🔎 Dependency Analysis

📦 Bundled files:

Bundled file size
🟠 index.mjs                       [#######################.] 2.29 MB 27.2%
🟠 _chunks/runtime-artifacts.mjs   [################........] 1.61 MB 19.0%
🟡 _libs/undici.mjs                [##########..............] 980.5 kB 11.6%
🟡 _chunks/sandbox.mjs             [########................] 769.0 kB 9.1%
🟡 _libs/@ai-sdk/gateway+[...].mjs [####....................] 432.8 kB 5.1%
🟠 Other bundled files             [########################] 2.37 MB 28.0%

🧾 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 • 8.45 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	8.45 MB
Function files	8.45 MB across 44 files
Traced dependencies	0 B
Signal	🟠 Bundled file index.mjs is 2.29 MB (27.2%)

🟠 🔎 Dependency Analysis

📦 Bundled files:

Bundled file size
🟠 index.mjs                       [#######################.] 2.29 MB 27.2%
🟠 _chunks/runtime-artifacts.mjs   [################........] 1.61 MB 19.0%
🟡 _libs/undici.mjs                [##########..............] 980.5 kB 11.6%
🟡 _chunks/sandbox.mjs             [########................] 769.0 kB 9.1%
🟡 _libs/@ai-sdk/gateway+[...].mjs [####....................] 432.8 kB 5.1%
🟠 Other bundled files             [########################] 2.37 MB 28.0%

🧾 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: 2.28 s -> 2.09 s (-190.6 ms) vs tasks/02-foundation (bea6c0e).
• Timing is informational: shared GitHub runners are too variable for a hard timing budget.

Detailed phase timings vs `tasks/02-foundation (bea6c0e)`

Phase	Baseline	Current	Delta
extension.check	6.3 ms	1.2 ms	-5.1 ms
project.resolve	3.5 ms	0.6 ms	-2.9 ms
workspace.create	1.5 ms	0.7 ms	-0.8 ms
host.prepare	451.1 ms	221.7 ms	-229.4 ms
vercel.service-prefix.resolve	1.9 ms	2.0 ms	+0.1 ms
nitro.create	205.2 ms	227.0 ms	+21.8 ms
sandbox.prewarm	202.6 ms	200.3 ms	-2.3 ms
nitro.cache.prepare	0.3 ms	0.2 ms	-0.1 ms
nitro.prepare	0.9 ms	0.7 ms	-0.2 ms
nitro.public-assets	0.8 ms	0.8 ms	0.0 ms
nitro.prerender	0.4 ms	0.5 ms	+0.1 ms
nitro.bundle	1.38 s	1.41 s	+27.8 ms
nitro.cache.write	0.4 ms	0.5 ms	+0.1 ms
vercel.workflow-function.materialize	21.8 ms	21.6 ms	-0.2 ms
agent-summary.emit	0.6 ms	0.6 ms	0.0 ms
nitro.close	0.1 ms	0.2 ms	+0.1 ms
output.publish	3.4 ms	3.6 ms	+0.2 ms
workspace.remove	2.1 ms	2.0 ms	-0.1 ms

[vercel]

isRootOnlyFrameworkTool hides any tool whose name is in TASK_TOOL_NAMES from subagent/child sessions, so an authored tool that merely shares a task tool name (e.g. task_sleep) is wrongly hidden even when experimental.tasks is disabled.