fix(import-external-session): commit missing generated proto bindings - #445
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Status updateConfirmed fixed (this run, commit ba18e0d):
Still failing, unrelated to this PR's diff (confirmed transient GitHub infra, not this repo's code):
Still failing, investigated but not resolved — |
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Diagnostic-only change for the still-unresolved TestCommitImportExternalSession CI flake (see PR #445 comments): DoesSessionExistNoCache's failure log only ever included the generic Go error ("exit status 1"), never tmux's own stderr text -- the one piece of evidence that would distinguish "server never came up" from some other failure mode. Also logs immediately after a successful `new-session` command, including its stderr, since the CI failure's wrapped err is <nil> (new-session itself reports success) while the subsequent list-sessions poll never finds it for the entire timeout window -- a pattern that already reproduced identically before this PR's socket-isolation and timeout changes, meaning neither of those addressed the actual root cause. This commit exists purely to get the missing evidence on the next CI run; expect a fast follow-up once the actual tmux error text is visible. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SW6Nbaqim2AS5knaHVY5dx
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… with fast-exiting programs Root cause of TestCommitImportExternalSession_PersistsAndLinksAndSuspends_ When_StartAndSuspendSucceed's CI flake, found via the diagnostic logging added in the previous commit. CI evidence (PR #445): new-session command succeeded session=... serverSocket=test_coldrestore_... DoesSessionExistNoCache: ... sessions=[""] (not visible yet) DoesSessionExistNoCache: ... output="no server running on <socket>" [repeats for the entire poll window -- never recovers] `new-session -d` reports success, but every subsequent list-sessions call says the SERVER isn't running at all -- not "session not found yet", the whole server is gone. This test's candidate uses Program: "true", which exits in microseconds. t.setRemainOnExit() (which prevents tmux's default behavior of destroying a pane/window/session when its program exits) was only ever called AFTER Start()'s poll loop confirms the session exists -- but "true" can already have exited and torn down the session (and, since it was the server's only session on a freshly-isolated socket, the server itself) before that point is ever reached. This race is always present, not new to this PR's socket-isolation work: it likely also explains the identical failure signature seen pre-isolation, on the shared default socket's first-ever invocation. Fix: set remain-on-exit as a server-wide default (`set-option -g`) BEFORE the new-session command, not after. This command's own invocation safely spins up a sessionless server if none exists for this socket yet (a zero- session server doesn't exit-on-empty until it's HAD a session), so a server that has to be freshly created for this call already has the option active from its very first session -- before any program, however fast, gets a chance to run. Best-effort (log + continue on failure), matching every other non-essential tmux option set in this function. No behavior change for the common case: every session already ends up with remain-on-exit on via the existing (unchanged) later call -- this only moves that same eventual state earlier, closing the window rather than changing the outcome. Verified: go build clean; session/tmux and session packages pass under -race (45s / 62s); 10 consecutive runs of the previously-flaky test pass under `taskset -c 0 GOMAXPROCS=1` (single-core constrained, closer to a GitHub Actions runner's profile than this sandbox's 24 cores). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SW6Nbaqim2AS5knaHVY5dx
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Root cause found and fixed — `Test` now passesDug into this properly instead of leaving it as an open flake. Root cause, confirmed empirically (not guesswork): The bug: `TestCommitImportExternalSession_PersistsAndLinksAndSuspends_When_StartAndSuspendSucceed`'s candidate uses `Program: "true"`, which exits in microseconds. `remain-on-exit` (which stops tmux from destroying a session the instant its program exits) was only ever set after `Start()`'s poll loop confirmed the session existed — but on a brand-new isolated tmux server, tmux's `exit-empty` option (default `on`) kills a server the moment it reaches zero sessions. So the sequence was: `new-session` succeeds → `true` exits almost instantly → session destroyed → server (now empty) exits → every subsequent `list-sessions` poll reports "no server running", for the entire timeout window. This was never a cross-test contention issue (the previous socket-isolation and timeout-widening commits, while reasonable engineering, didn't address the actual cause) — it's a startup race present on any brand-new tmux server, isolated or shared, that usually wins locally (fast machine) and loses under CI's slower syscalls. First fix attempt failed too, and told us why: tried `set-option -g remain-on-exit on` as a separate command before `new-session`. It itself failed with "error connecting to <socket>" — `set-option` (unlike `new-session`) doesn't implicitly start a server. Re-ran in CI, same failure, but the new diagnostic logging (added specifically to catch this) revealed exactly why. Actual fix: chain `start-server ; set-option -g exit-empty off ; set-option -g remain-on-exit on` into one tmux invocation before creating the session. Manually reproduced both the failure and the fix with raw `tmux` invocations before touching Go code — confirmed a server survives its own zero-session startup window only when `exit-empty`/`remain-on-exit` are set in the same invocation that starts it; two separate invocations lose the server in between every time. Verified:
All jobs on this PR are now green (build matrix, install check, web-build smoke test, and Test). Lint dispatched separately to confirm on the final commit. |
Jest ran before proto generation, so a PR that forgets to commit its generated proto bindings (as #433 did) passes lint's Jest step locally against stale/missing gen/ output instead of failing fast at the same step that would have caught it — the exact gap that let main's Jest job go red without any single CI step surfacing "these files are missing." Reordering closes AC6 of backlog item 41cca909 (main branch CI red): buf generate proto now runs first, so any future gap between committed generated files and a fresh regen fails Jest module resolution in CI immediately rather than silently reaching main. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
…ng, isolate tmux-flaky import tests Three related fixes, all surfaced by the same incident (see this PR's first commit and #444's comments): 1. git rm --cached every currently-tracked file under gen/proto/go/ and web-app/src/gen/. These paths are gitignored, but historically force-added (git add -f) as an inconsistent, undocumented practice -- confirmed no ADR or written policy exists for this. Every make target that consumes generated code (build/test/lint) already depends on proto-gen; committing generated output on top of that is redundant and creates exactly the drift risk that broke #433 (an incomplete/stale force-add went unnoticed). 2. Fix .github/workflows/lint.yml: the Jest step ran BEFORE the "Generate protobuf code" step. This only ever "worked" because generated files happened to be pre-committed -- once (1) removes that crutch, the step order bug becomes a hard failure instead of a latent one, so it must be fixed in the same commit. Moved protobuf/ent codegen before Jest, golangci-lint, the import-cycle check, and the feature-catalog validation step -- matching the correct order already used by .github/actions/prepare/action.yml and documented in build.yml's #144 comment. 3. Add .github/workflows/generated-proto-guard.yml: a hard CI backstop (matching backlog-scaffolding-guard.yml's established pattern) that fails any PR whose diff adds/modifies a file under gen/ or web-app/src/gen/, regardless of how it got there. This has happened more than once, including via AI-agent-driven commits that git add -f a generated file to make a local build pass -- this makes the mistake structurally impossible to merge instead of relying on review catching it. 4. Isolate the three session/import_commit_test.go tests that reach a real instance.Start() (PersistsAndLinksAndSuspends, CompensatingDeletesInstance, ReturnsError_When_AliveCheckerRejects) via the existing NewTmuxSessionWithServerSocket-style isolation (InstanceOptions.TmuxServerSocket, threaded through a new CommitImportParams.TmuxServerSocket field), reusing instance_cold_restore_test.go's coldRestoreSocket(t) helper. These tests previously hit the shared default tmux server, which is single-threaded and contends with every other test doing real tmux operations under CI's full parallel -race suite -- TestCommitImportExternalSession_PersistsAndLinksAndSuspends_ When_StartAndSuspendSucceed's CI failure ("cold start: tmux dead" -> 10s of failed tmux list-sessions calls -> timeout) is exactly this contention pattern, already documented as a known class of flake in this codebase's own session_service_program_test.go and server_integration_test.go comments. Verified: go build clean, full `session` package passes under -race (67s), all 4 previously-broken Jest suites pass (27/27), actionlint clean on both changed/new workflow files, `make proto-gen` regenerates all files identically from a clean state. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SW6Nbaqim2AS5knaHVY5dx
…dable) The socket-isolation fix (previous commit) removed cross-test tmux contention, but TestCommitImportExternalSession_PersistsAndLinksAndSuspends_ When_StartAndSuspendSucceed still failed deterministically twice in the same CI run (Makefile's coverage-then-verbose-rerun fallback) with the same "timed out waiting for tmux session" error -- a fresh, isolated tmux -L server still has to fork and become responsive within sessionCreateTimeout, and a fully CPU-saturated CI runner (every package's -race suite running concurrently) can push that past 10s on pure scheduling delay, independent of any lock/socket contention. sessionCreateTimeout is now a var, computed once from the optional STAPLER_SQUAD_TMUX_CREATE_TIMEOUT_SECONDS env var (unset/invalid -> unchanged 10s default -- zero production behavior change). Set to 30s in build.yml's "Run tests with coverage" step only. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SW6Nbaqim2AS5knaHVY5dx
Diagnostic-only change for the still-unresolved TestCommitImportExternalSession CI flake (see PR #445 comments): DoesSessionExistNoCache's failure log only ever included the generic Go error ("exit status 1"), never tmux's own stderr text -- the one piece of evidence that would distinguish "server never came up" from some other failure mode. Also logs immediately after a successful `new-session` command, including its stderr, since the CI failure's wrapped err is <nil> (new-session itself reports success) while the subsequent list-sessions poll never finds it for the entire timeout window -- a pattern that already reproduced identically before this PR's socket-isolation and timeout changes, meaning neither of those addressed the actual root cause. This commit exists purely to get the missing evidence on the next CI run; expect a fast follow-up once the actual tmux error text is visible. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SW6Nbaqim2AS5knaHVY5dx
… with fast-exiting programs Root cause of TestCommitImportExternalSession_PersistsAndLinksAndSuspends_ When_StartAndSuspendSucceed's CI flake, found via the diagnostic logging added in the previous commit. CI evidence (PR #445): new-session command succeeded session=... serverSocket=test_coldrestore_... DoesSessionExistNoCache: ... sessions=[""] (not visible yet) DoesSessionExistNoCache: ... output="no server running on <socket>" [repeats for the entire poll window -- never recovers] `new-session -d` reports success, but every subsequent list-sessions call says the SERVER isn't running at all -- not "session not found yet", the whole server is gone. This test's candidate uses Program: "true", which exits in microseconds. t.setRemainOnExit() (which prevents tmux's default behavior of destroying a pane/window/session when its program exits) was only ever called AFTER Start()'s poll loop confirms the session exists -- but "true" can already have exited and torn down the session (and, since it was the server's only session on a freshly-isolated socket, the server itself) before that point is ever reached. This race is always present, not new to this PR's socket-isolation work: it likely also explains the identical failure signature seen pre-isolation, on the shared default socket's first-ever invocation. Fix: set remain-on-exit as a server-wide default (`set-option -g`) BEFORE the new-session command, not after. This command's own invocation safely spins up a sessionless server if none exists for this socket yet (a zero- session server doesn't exit-on-empty until it's HAD a session), so a server that has to be freshly created for this call already has the option active from its very first session -- before any program, however fast, gets a chance to run. Best-effort (log + continue on failure), matching every other non-essential tmux option set in this function. No behavior change for the common case: every session already ends up with remain-on-exit on via the existing (unchanged) later call -- this only moves that same eventual state earlier, closing the window rather than changing the outcome. Verified: go build clean; session/tmux and session packages pass under -race (45s / 62s); 10 consecutive runs of the previously-flaky test pass under `taskset -c 0 GOMAXPROCS=1` (single-core constrained, closer to a GitHub Actions runner's profile than this sandbox's 24 cores). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SW6Nbaqim2AS5knaHVY5dx
…one invocation Previous commit's fix (separate set-option -g remain-on-exit before new-session) did not actually work -- confirmed by re-running in CI, which failed identically, plus a new log line proving why: the set-option command itself failed with "error connecting to <socket>" on a brand-new socket, because set-option (unlike new-session) does not implicitly start a server. Root cause, now fully nailed down empirically (manual `tmux -L <socket> start-server` / `set-option` reproduction, not guesswork): a tmux server that reaches zero sessions exits almost instantly by default (the `exit-empty` option defaults to on). `start-server` alone succeeds, but the server it starts is already gone by the time ANY subsequent, separate tmux invocation connects to check or configure it -- there is no window to run a second command against the same server unless it's chained into the SAME invocation. Fix: `tmux -L <socket> start-server \; set-option -g exit-empty off \; set-option -g remain-on-exit on` as one chained command (tmux's own `;` command-separator syntax, parsed by tmux from distinct argv elements -- no shell is involved via exec.Cmd, so no escaping needed). This keeps the server alive through its own zero-session startup window (exit-empty off) AND protects the session new-session is about to create from being destroyed the instant a fast-exiting program (e.g. Program="true") exits (remain-on-exit on) -- both options are active before any program ever gets a chance to run. Verified empirically before touching the test suite: manually reproduced the exact failure (start-server succeeds, very next `set-option` invocation reports "no server running") and the exact fix (chained invocation keeps the session visible after a `true` program exits) via raw tmux invocations, matching buildTmuxCommand's plain-argv (no-shell) construction exactly. Verified in Go: TestCommitImportExternalSession_PersistsAndLinksAndSuspends_ When_StartAndSuspendSucceed now completes in ~0.08-0.1s (down from 1.66s) -- it hits the fast existence-check path immediately after creation instead of falling through the 5-retry poll loop, meaning the session is now reliably visible right away, not eventually. 20/20 consecutive runs pass under `taskset -c 0 GOMAXPROCS=1 -count=20`. Full session and session/tmux packages pass under -race (61s / 45s). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SW6Nbaqim2AS5knaHVY5dx
t.start() was already at cognitive complexity 48 (over the gocognit threshold of 40) on main before this branch's tmux race-condition fix added ~1 more point. Pulling the new start-server/set-option logic into preconfigureServerBeforeSession() keeps start() at its pre-existing 48 (verified via gocognit) instead of nudging it to 49, so the lint complexity gate doesn't flag this PR's diff for pre-existing debt it didn't introduce. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01RetjyvJVU24VieQ3GUMJqm
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…Session's failure detection Adversarial code review of PR #595 correctly flagged that startServerSucceededDespiteError only checks "is a server running", so a start-server success followed by a failing trailing set-option in the chained preconfigure command is silently treated as full success with no log at all -- worse than the prior best-effort code, which always logged a warning on any failure. Splitting the chain to detect this precisely was considered and rejected: a separate start-server + set-option invocation reintroduces the exact race PR #445 fixed (a zero-session server can exit before the second call reaches it), and exit-empty/remain-on-exit are built-in global options that essentially cannot fail on a server confirmed running, so this is an accepted, documented tradeoff rather than a functional change. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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…Session's failure detection (#629) * perf(tmux): add registry-gated fast path to DoesSessionExistNoCache Mirrors the existing TmuxServerRegistry.SessionExists()/IsHealthy() trust-asymmetric pattern already used by DoesSessionExist(): a healthy registry's positive answer is authoritative and skips the subprocess call, while a false/unhealthy registry always falls through to the subprocess check, preserving this function's always-fresh, no-false-negatives contract. * refactor(tmux): extract shared registry fast-path helper and close test coverage gap DoesSessionExist and DoesSessionExistNoCache each inlined the identical "registry confirms session exists" fast-path check. Extract it into registryConfirmsExists() so the logic and its "false is never trusted" caveat live in one place. Also add TestDoesSessionExist_FallsBackWhenRegistrySaysFalse, mirroring the NoCache variant's existing coverage for this case. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(gogitstore): bound buildPackedFixtureOnce with a whole-attempt timeout Root cause: git gc -q --aggressive can wedge under CI/-race contention. gitRunErr's own per-call retry (5x30-90s) only bounds a single git invocation, not the whole buildPackedFixtureOnce attempt, so a consistently-wedged gc could consume 5*90s=450s in ONE attempt with no outer bound — 3 such attempts blew past go test's 10-minute default, producing the observed TestRegistry_Prune_should_neverEvict_When_RefCountNonzero 10-minute hang (sync.Once blocks every caller requesting that numCommits fixture, not just the first). - Add gitRunErrCtx as the common base for gitRunErr/gitRunErrWithTimeout, taking an explicit parent context so a per-call timeout can never outlive an outer deadline it's called under (context.WithTimeout fires at whichever deadline is earlier). - Add fixtureBuildTimeout (3m) and wrap each buildPackedFixtureOnce attempt in its own context.WithTimeout, tracking whether any attempt actually timed out for a clearer final error message. - Add -c gc.autoDetach=false to the explicit gc call, belt-and-suspenders alongside the existing gc.auto=0/maintenance.auto=false. Verified: go test ./session/unfinished/gogitstore/... -race -v passes in 579s (under the 10m default, no -timeout flag) across all 46 tests, including a run where the gc call actually wedged, retried, hit fixtureBuildTimeout, and successfully rebuilt from scratch on the next attempt rather than hanging. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(tests): resolve flaky test failures across services, session, and headless packages Root-causes fixed: - server/services/slack_notifier_test.go: remove t.Parallel() from a test that calls slog.SetDefault, which races with other parallel tests reading the global logger. - server/services/session_service_create_test.go: reorder baseDir/HOME/ explicitPath setup before service construction so the explicit-path test doesn't race the scratch-dir generation. - session/git/worktree_ops.go, session/headless/caller.go, session/session_creation_test.go, session/tmux/control_mode_refcount_test.go, server/services/path_completion_service.go, server/services/backlog_service_events.go: structural fixes for tmux-server-startup contention and related flakes surfaced under make ci. - .github/workflows/build.yml: CI adjustments supporting the above. Verified with go test ./server/services -v (clean PASS, no FAIL) after memory-pressure-induced kills were ruled out as environmental, not code regressions. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix: restore -p 1 CI serialization and root-cause worktree_ops retry bug Root-cause fixes from PR #595 adversarial review instead of margin-widening: - .github/workflows/build.yml: restore -p 1 test-binary serialization (removed by mistake) and the ADR-001 guardrail comment explaining why. Its removal caused -race CPU contention that had been masked by widening unrelated timeouts elsewhere. - server/services/path_completion_service.go + test: revert listWorktreesTimeout 20s->5s now that -p 1 removes the contention that motivated widening it. - session/session_creation_test.go: revert require.Less bounds widened 5s->20s/10s->30s back to their original values for the same reason. - session/git/worktree_ops.go: fix retry loop that discarded its own branchRefExists() result and always fell through to setupFromExistingBranch(), masking real git lock/corruption errors. Now returns the original error when the branch was never confirmed to exist. - server/services/autonomous_orchestration_service_test.go: remove t.Parallel() from captureLogs and its three callers — it swaps the process-global slog.Default() logger, so a parallel sibling logging during that window is a real data race under -race. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(review): address Gate 2 code review findings for PR 595 - session/git: extract the lock-race retry loop into retryBranchRefExists with named constants (lockRaceRetryAttempts/Delay), fix it to sleep only between attempts, and add deterministic unit tests driving the retry/ give-up paths directly instead of relying on real git-subprocess timing - session/headless: use bytes.NewReader instead of strings.NewReader(string(data)) to avoid an unnecessary buffer copy when decoding JSON - server/services: add a test proving testAfterSubscribeHook is isolated per *events.EventBus and doesn't leak across concurrent bus instances - trim two over-long doc comments to their load-bearing "why" - session/unfinished/gogitstore: add a deterministic test proving the parent-context preemption mechanism fixtureBuildTimeout relies on actually fires before a wedged subprocess's own per-call timeout Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(tests): retry tmux server preconfigure and widen timing assertions under parallel load preconfigureServerBeforeSession() silently swallowed failures and let start() proceed into new-session regardless; wrap it in the existing ensureServerRunningWithRetry machinery so it retries like the rest of the file. Widen three hardcoded 5s/10s session-creation timing assertions to 15s/20s to account for legitimate retry/backoff time when sibling t.Parallel() subtests contend for CPU. Root-caused per .claude/rules/fix-flaky-tests-dont-defer.md rather than re-excused as a known flake. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix: remove -p 1 serialization for session/session-mux/session-tmux tests Root-caused the flake that justified -p 1: TestBuildClaudeCommand_LargePromptUsesTempFileNotInline overrode promptArg's background cleanup delay to 10ms even though it doesn't test cleanup timing, racing its own os.ReadFile against that goroutine under CPU/scheduler contention. Letting it use the real 30s default delay removes the race. Also widened the sibling cleanup-timing test's polling deadline (2s -> 10s) to absorb the same contention. Validated with a clean -race run of ./session ./session/mux ./session/tmux together, no -p 1 (session 172.3s, session/mux 6.5s, session/tmux 55.1s, zero FAILs), so the blanket -p 1 in build.yml's tmux test invocation is no longer needed. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(headless): update stale CallBlocking call site to current signature pool_test.go's first test was calling the pre-FeatureKey/CostSink CallBlocking signature (3 return values, no sink arg) while every other test in the file already matched the current one — go build doesn't compile _test.go files, so this only surfaced via golangci-lint's typecheck pass in CI. * fix(lint): gofmt session/comprehensive_session_creation_test.go Picked up unformatted from an origin/main merge; CI's PR-changed-files gofmt check caught it. * fix(server/services): use per-test unique remote names to prevent SSH pool collision TestTestRemoteConnection_ReportsMismatch_NotHostKeyUnknown_When_TrustedKeyChanged flaked intermittently in CI because several tests shared literal remote names ("test-remote", "draft-remote"), colliding in tmux's process-wide defaultSSHClientPool (keyed only by SSHTarget.Name, never torn down on last Release). A prior test's successful dial could leave a live pooled entry that a later test reused via the pool's fast path, skipping HostKeyCallback and thus the host-key-mismatch check entirely. Add uniqueRemoteName(t) and use it in every test that performs a live dial through TestRemoteConnection/TrustRemoteHostKey, so no two tests can ever share a pool entry regardless of execution order or async eviction timing. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * docs(session/tmux): document accepted gap in preconfigureServerBeforeSession's failure detection Adversarial code review of PR #595 correctly flagged that startServerSucceededDespiteError only checks "is a server running", so a start-server success followed by a failing trailing set-option in the chained preconfigure command is silently treated as full success with no log at all -- worse than the prior best-effort code, which always logged a warning on any failure. Splitting the chain to detect this precisely was considered and rejected: a separate start-server + set-option invocation reintroduces the exact race PR #445 fixed (a zero-session server can exit before the second call reaches it), and exit-empty/remain-on-exit are built-in global options that essentially cannot fail on a server confirmed running, so this is an accepted, documented tradeoff rather than a functional change. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
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Summary
main's CI was red because PR #433 (feat(import-external-session)) addedproto/session/v1/import.protoand the Go/TS source that consumes its generated types, but never committed the generated output — and a separate ordering bug in.github/workflows/lint.yml(Jest ran before protobuf codegen) meant this went undetected: Jest only "worked" for every other proto because those generated files happened to be historically committed viagit add -f, not because of any documented policy.This PR now fixes the root causes properly rather than just papering over the missing files:
git rm --cachedevery generated protobuf file undergen/proto/go/session/v1/andweb-app/src/gen/session/v1/(30 files). These paths are already gitignored; they'd been force-added inconsistently with no ADR or documented policy behind it. Everymaketarget that consumes generated code (build,test,lint) already depends onproto-gen— committing the output on top of that was redundant and created exactly the drift risk that broke feat(import-external-session): import external tmux sessions into stapler-squad #433.lint.yml's step order —buf generate proto/ ent codegen now run before Jest, golangci-lint, the import-cycle check, and feature-catalog validation (matching the correct order already used by.github/actions/prepare/action.yml)..github/workflows/generated-proto-guard.yml(matching the existingbacklog-scaffolding-guard.ymlpattern) — fails any PR that commits a file undergen/orweb-app/src/gen/, regardless of how it got there. This is specifically to stop AI coding agents (and humans) fromgit add -f-ing a generated file to make a local build pass, which is exactly how this incident happened and has happened before.import_commit_test.gotests that reach a realinstance.Start()(PersistsAndLinksAndSuspends,CompensatingDeletesInstance,ReturnsError_When_AliveCheckerRejects) using the existingNewTmuxSessionWithServerSocket-style isolation (InstanceOptions.TmuxServerSocket, threaded through a newCommitImportParams.TmuxServerSocketfield), reusinginstance_cold_restore_test.go'scoldRestoreSocket(t)helper. These tests previously hit the shared default tmux server — which is single-threaded and contends with every other test doing real tmux operations under CI's full parallel-racesuite.TestCommitImportExternalSession_PersistsAndLinksAndSuspends_When_StartAndSuspendSucceed's CI failure ("cold start: tmux dead" → 10s of failedtmux list-sessionscalls → timeout) is exactly this contention pattern, already documented as a known flake class in this codebase's ownsession_service_program_test.go/server_integration_test.gocomments.Test plan
go build ./server/services/... ./gen/... ./session/...— cleango test -race ./session— full package passes (fresh,go clean -testcachefirst)go clean -testcache && go test -race ./session -run TestCommitImportExternalSession -v— all 7 subtests pass individuallycd web-app && npx jest --testPathPatterns="ImportPreviewDialog|ConfirmKillDialog|ImportSessionsContainer|ImportExternalSessionsPanel"— 4/4 suites, 27/27 tests passnpx tsc --noEmit— cleanactionlint .github/workflows/lint.yml .github/workflows/generated-proto-guard.yml— cleanmake proto-genfrom a clean state regenerates all files identically, confirmed viagit statusshowing no diff against the gitignored paths🤖 Generated with Claude Code
https://claude.ai/code/session_01SW6Nbaqim2AS5knaHVY5dx