fix(eve): repair session token limit continuation

[ruiconti]

Three user-visible bugs in the session token-limit flow:

1. A session hits its token limit and eve raises the "approve to continue" prompt. If the user sends a regular message instead of answering, that message replaces the pending prompt — the turn runs again, hits the limit again, and prompts again. This is the repeating-responses loop.
2. If the user declines the prompt, the turn cancels — but settling the cancelled turn resurrected the prompt that was just answered. The stale prompt demanded an answer that had already been consumed, so every follow-up message queued behind it and the session swallowed messages.
3. The user approves the prompt and the session continues — but the fresh budget never reaches subagent accounting. A subagent delegated after the approval inherits a zero or stale quota, so it immediately raises its own continuation prompt, and approving that prompt does nothing: a zero-token window has nothing to grant.

What

• Keep one session_limit_continuation request pending while concurrent messages queue behind it. Pending requests are classified required or dismissable; a required request holds the batch until answered.
• On cancelled-turn settle, drop pending harness-authored session-limit prompts instead of resurrecting them. The pre-model gate deterministically re-raises the prompt while the violation holds, so a declined root stays fail-closed on follow-up messages.
• Track approved windows as absolute runtime token ceilings. Each approval re-anchors the ceiling to lifetime usage plus the configured limit.
• Calculate delegated grants from the remaining runtime ceiling. A child with zero inherited quota fails fast instead of raising a prompt that cannot grant tokens; the root then parks on its own prompt.

E2E

session-token-limit-approve.eval.ts: concurrent HTTP delivery with a held-open turn, two queued messages, one prompt, and a distinct request id for the next exhausted window.

Stack

Two PRs layer on this branch: client answer handling (TUI options + approval classification) and #1273 (descendant Stop cancellation and the InputRequest.kind contract).

[vercel]

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

Project	Deployment	Actions	Updated (UTC)
eve-docs	Ready	Preview, Comment, Open in v0	Jul 29, 2026 3:14am
eve-docs-1644	Ready	Preview, Comment, Open in v0	Jul 29, 2026 3:14am
eve-docs-4759	Ready	Preview, Comment, Open in v0	Jul 29, 2026 3:14am

[github-actions]

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

Key takeaways

• No notable deltas vs main (6dc662c).

Delta vs main (6dc662c)

Area	Metric	Baseline	Current	Delta
Package	Packed tarball	7.60 MB	7.61 MB	+1.4 kB ⚠️
Package	Unpacked publish size	28.74 MB	28.74 MB	+3.7 kB ⚠️
Package	Installed footprint	69.87 MB	69.87 MB	+3.7 kB ⚠️
Package	Published files	2855	2857	+2
Package	Installed files	6328	6330	+2
Runtime	Unique function payloads	2	2	0
Runtime	Total function bytes	16.72 MB	16.73 MB	+1.8 kB ⚠️
Runtime	Public routes	11	11	0

Changed function payloads vs main (6dc662c) (2)

Function	Status	Baseline	Current	Delta	Route changes
functions/__server.func	changed	8.36 MB	8.36 MB	+895 B ⚠️	none
functions/.well-known/workflow/v1/flow.func	changed	8.36 MB	8.36 MB	+895 B ⚠️	none

eve init install

Metric	Baseline	Current	Delta
Installed footprint	108.27 MB	108.27 MB	+3.7 kB ⚠️
Installed packages	123	123	0
dependencies	4	4	0
devDependencies	2	2	0
Dependency package bytes	43.06 MB	43.06 MB	+3.7 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: 2026-07-29T03:15:59.378Z
• 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@0.27.12
• Package directory: packages/eve
• Tarball: 7.61 MB (eve-0.27.12.tgz)
• Unpacked payload: 28.74 MB across 2857 published files
• Installed footprint: 69.87 MB across 6330 installed files
• Installed root package: 27.39 MB
• Installed dependencies: 42.48 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: 27.39 MB (39.2%)
• @rolldown/binding-linux-x64-gnu: 18.96 MB (27.1%)
• ai: 6.52 MB (9.3%)
• zod: 5.07 MB (7.3%)
• nitro: 2.41 MB (3.4%)

Publish payload breakdown

Published file size
🔴 dist/src/compiled/shadcn-registry/index.js       [########################] 13.15 MB 45.8%
🟠 dist/src/compiled/experimental-ai-sdk-code-mo... [###.....................] 1.51 MB 5.2%
🟡 dist/src/compiled/@vercel/sandbox/index.js       [#.......................] 632.5 kB 2.2%
🟡 dist/src/compiled/_chunks/workflow/undici-DWL... [#.......................] 502.4 kB 1.7%
🟡 dist/src/compiled/@chat-adapter/slack/index.js   [#.......................] 440.5 kB 1.5%
🔴 Other published files                            [#######################.] 12.51 MB 43.5%

Installed footprint breakdown

Installed package size
🔴 eve                             [########################] 27.39 MB 39.2%
🔴 @rolldown/binding-linux-x64-gnu [#################.......] 18.96 MB 27.1%
🔴 ai                              [######..................] 6.52 MB 9.3%
🔴 zod                             [####....................] 5.07 MB 7.3%
🟠 nitro                           [##......................] 2.41 MB 3.4%
🟠 undici                          [##......................] 1.86 MB 2.7%
🔴 Other installed packages        [#######.................] 7.67 MB 11.0%

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: 108.27 MB across 8198 installed files
• Installed packages: 123 total (117 transitive-only)
• dependencies: 4 direct packages totaling 43.06 MB
• devDependencies: 2 direct packages totaling 5.04 MB
• Other transitive package files: 60.17 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 (25.8%)
• eve: 27.39 MB (25.3%)
• @rolldown/binding-linux-x64-gnu: 18.96 MB (17.5%)
• zod: 9.02 MB (8.3%)
• ai: 6.52 MB (6.0%)

Installed footprint breakdown

Installed package size
🔴 @typescript/typescript-linux-x64 [########################] 27.95 MB 25.8%
🔴 eve                              [########################] 27.39 MB 25.3%
🔴 @rolldown/binding-linux-x64-gnu  [################........] 18.96 MB 17.5%
🔴 zod                              [########................] 9.02 MB 8.3%
🔴 ai                               [######..................] 6.52 MB 6.0%
🟠 @types/node                      [##......................] 2.54 MB 2.3%
🔴 Other installed packages         [##############..........] 15.90 MB 14.7%

dependencies (4)

Package	Range	Installed size	Share
@vercel/connect	0.4.2	135.8 kB	0.1%
ai	^7.0.38	6.52 MB	6.0%
eve	file:eve-0.27.12.tgz	27.39 MB	25.3%
zod	4.4.3	9.02 MB	8.3%

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     [########################] 8.36 MB 50.0%
🔴 functions/__server.func                         [########################] 8.36 MB 50.0%

Top Function Payloads

🟠 functions/.well-known/workflow/v1/flow.func • 1 public route • 8.36 MB

Metric	Value
Public routes	/.well-known/workflow/v1/flow
Runtime	nodejs24.x
Handler	index.mjs
Payload	8.36 MB
Function files	8.36 MB across 44 files
Traced dependencies	0 B
Signal	🟠 Bundled file index.mjs is 2.27 MB (27.1%)

🟠 🔎 Dependency Analysis

📦 Bundled files:

Bundled file size
🟠 index.mjs                       [#######################.] 2.27 MB 27.1%
🟠 _chunks/runtime-artifacts.mjs   [################........] 1.59 MB 19.0%
🟡 _libs/undici.mjs                [##########..............] 980.5 kB 11.7%
🟡 _chunks/sandbox.mjs             [########................] 768.8 kB 9.2%
🟡 _libs/@ai-sdk/gateway+[...].mjs [####....................] 432.8 kB 5.2%
🟠 Other bundled files             [########################] 2.33 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 • 8.36 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	8.36 MB
Function files	8.36 MB across 44 files
Traced dependencies	0 B
Signal	🟠 Bundled file index.mjs is 2.27 MB (27.1%)

🟠 🔎 Dependency Analysis

📦 Bundled files:

Bundled file size
🟠 index.mjs                       [#######################.] 2.27 MB 27.1%
🟠 _chunks/runtime-artifacts.mjs   [################........] 1.59 MB 19.0%
🟡 _libs/undici.mjs                [##########..............] 980.5 kB 11.7%
🟡 _chunks/sandbox.mjs             [########................] 768.8 kB 9.2%
🟡 _libs/@ai-sdk/gateway+[...].mjs [####....................] 432.8 kB 5.2%
🟠 Other bundled files             [########################] 2.32 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: 1.98 s -> 1.95 s (-35.5 ms) vs main (6dc662c).
• Timing is informational: shared GitHub runners are too variable for a hard timing budget.

Detailed phase timings vs `main (6dc662c)`

Phase	Baseline	Current	Delta
extension.check	9.8 ms	1.1 ms	-8.7 ms
project.resolve	3.4 ms	0.6 ms	-2.8 ms
workspace.create	1.2 ms	0.7 ms	-0.5 ms
host.prepare	175.6 ms	135.9 ms	-39.7 ms
vercel.service-prefix.resolve	2.4 ms	2.4 ms	0.0 ms
nitro.create	191.4 ms	213.1 ms	+21.7 ms
sandbox.prewarm	269.5 ms	243.4 ms	-26.1 ms
nitro.cache.prepare	0.3 ms	0.3 ms	0.0 ms
nitro.prepare	0.9 ms	0.9 ms	0.0 ms
nitro.public-assets	0.9 ms	0.8 ms	-0.1 ms
nitro.prerender	0.4 ms	0.5 ms	+0.1 ms
nitro.bundle	1.29 s	1.32 s	+22.7 ms
nitro.cache.write	0.4 ms	0.3 ms	-0.1 ms
vercel.workflow-function.materialize	25.0 ms	23.4 ms	-1.6 ms
agent-summary.emit	0.6 ms	0.5 ms	-0.1 ms
nitro.close	0.1 ms	0.1 ms	0.0 ms
output.publish	3.6 ms	3.5 ms	-0.1 ms
workspace.remove	2.4 ms	2.1 ms	-0.3 ms

[vercel]

Additional Suggestion:

A declined session-limit continuation in a delegated child settles as an unmarked done and makes the driver resume its delegating parent with a spurious empty SUCCESS subagent result, racing the terminal cancel cascade and letting the parent continue instead of being torn down.