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fix(native-network-logs): capture the launch after restart_required - #1402
blazejkustra wants to merge 11 commits into
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When the app was not yet instrumented, the first call answered restart_required before registering that capture was wanted, so the relaunched app recorded nothing until the agent's next call and its launch requests were lost. Register the intent before the precheck, so the relaunched app starts capturing as soon as it connects.
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Check name Status Explanation Description check The description clearly explains the restart_required capture issue, the activation approach, and the tests for the changes. Title check The title clearly identifies the fix: capture launch traffic after a restart_required response in native-network-logs. Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request.
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[Diplomat, Opus 5.5]: I ran this end to end on an iOS 18.5 simulator. The test app sends 13 timed requests in its first 8 s and was started before argent instrumented it. The flow was native-network-logs (answered restart_required), then restart-app, then polling native-network-logs. Main captured only the 3 requests sent after the first successful call; this branch (db24a6c; 91c0509 only removes a comment) captured all 13, including the one sent at t=0. Locally, prettier, eslint, typecheck:tests and the full tool-server suite (4 shards) pass.
Two problems that predate this change came up and are filed separately: #1433 (once capture is armed, the app drops its cookies and bypasses its redirect delegate; with this change that also covers the relaunch restart_required asks for) and #1434 (limit handling).
Activation ran before the precheck's Apple-system-app rejection, so a refused call still armed capture for that app for the life of the service. Run the precheck first, and keep activation before the restart_required answer.
The first call for an app arms capture, so an app that was already running (including one argent launched) answered ok with count 0 and its launch requests silently missing. That first answer now carries a note saying earlier requests were not recorded and to restart-app to capture the launch.
Runs the real native-devtools blueprint against a fake app socket: a connected app is activated, an app that connects after restart_required is activated at its handshake, a reconnect is re-activated, and a refused Apple system app is never activated.
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Inline comments:
Review comments at
@packages/tool-server/test/native-network-logs-capture.test.ts:
- Line 51: Replace fixed-delay synchronization before positive ACTIVATE
assertions in the native network log capture tests with polling that waits until
the relevant app’s received data contains ACTIVATE. Keep settle() delays for
negative assertions that need an observation window.
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📒 Files selected for processing (11)
packages/tool-server/src/blueprints/native-devtools.tspackages/tool-server/src/tools/native-devtools/native-network-logs.tspackages/tool-server/test/describe-tool.test.tspackages/tool-server/test/ios-launch-args.test.tspackages/tool-server/test/launch-restart-system-app.test.tspackages/tool-server/test/native-devtools-status.test.tspackages/tool-server/test/native-network-logs-activation.test.tspackages/tool-server/test/native-network-logs-capture.test.tspackages/tool-server/test/native-target-app.test.tspackages/tool-server/test/simulator-watcher-external-claim.test.tspackages/tool-server/test/simulator-watcher-init-failure.test.ts
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[Diplomat, Opus 5.5]: I re-ran this at 58d3e91 on an iOS 18.5 simulator against a test app that sends 13 timed requests in its first 8 s. restart_required → restart-app → native-network-logs captured all 13, with no note. launch-app → native-network-logs returned count 0 with the note, and after restart-app the next call captured all 13. Locally, prettier, eslint, typecheck:tests and the full tool-server suite (4 shards) pass. I also ran 13 mutants against the 16 tool-server test files that touch this path, and 11 were killed. The two comments below are both reproduced against the real blueprint.
# Conflicts: # packages/tool-server/src/tools/native-devtools/native-network-logs.ts
…k answer The note was decided when capture was turned on, so a call that answered init_failed or not-connected used it up and the next ok came back as a bare count 0. The blueprint now records the gap (capture turned on for an app that was already running, including a provider's lent agent at its handshake) and the tool takes it only on the ok path. On a provider-attached device the note no longer advises restart-app, since a relaunch there ends capture.
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[Diplomat, Opus 5.5]: I re-ran this at 82c1aec on an iOS 18.6 simulator with a test app that sends 13 timed requests. After restart_required → restart-app, all 13 were captured and there was no note. After launch-app the first answer was ok with the restart-app note, the next call had no note, and after restart-app all 13 were captured. With clear/limit on the first call and across a tool-server restart, every answer matched the description. A provider-attach harness (real Registry and blueprint, fake provider socket) confirmed that a failed first call no longer uses up the note and that no answer advises restart-app there. All 14 mutants of the new lines that change behavior were killed, including the four from the earlier test-coverage thread. Locally, prettier, eslint, typecheck:tests and the full tool-server suite pass, apart from e2e-tool-aliases, which also fails locally on main. This review posts 1 comment.
| const api = services.nativeDevtools as NativeDevtoolsApi; | ||
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| const blocked = await precheckNativeDevtools(api, params.udid, params.bundleId); | ||
| api.activateNetworkInspection(params.bundleId); |
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[Diplomat, Opus 5.5]: Activation now runs before the NATIVE_DEVTOOLS_NOT_CONNECTED throw below, so on a provider-attached device that error message is false: it says "No network log is being captured for it", but this call has just armed capture. In a harness with a real Registry, the real blueprint and a fake provider socket, the first call after a cold attach threw that message. The provider's handshake then replayed the activation, and the next call returned ok with the note. After a provider hang-up, the first call threw the same message, and a request the app sent after that throw was still in the next answer (count: 1). The tool description (line 44) also presents this error as final on these devices, so an agent that trusts it gives up on a capture that is actually running. Why the first call throws at all predates this PR, filed as #1561.
Problem
When an app was already running before argent instrumented it,
native-network-logsansweredrestart_requiredwithout starting capture, so afterrestart-appthe next call returned 0 requests: the app's launch traffic was lost.Approach
Request capture before answering that the app needs a restart. The relaunched app then turns capture on as soon as it connects, so its launch requests are recorded.
Tests
native-network-logs→restart_required,restart-app,native-network-logs. Before: count 0. After: 198 events (42 launch requests, including the JS bundle).restart_requiredis returned; it fails on main.restart_requiredor reconnecting is activated at its handshake, a refusedcom.apple.*app never is. Fails with the.addremoved, the handshake replay removed, activation only when blocked, or activation before the precheck.features/network.mdxalready says capture starts when native inspection is activated and earlier requests are not captured.Screenshots
Before
native-network-launch-before.mp4
After
native-network-launch-after.mp4