rdmbair15m5-changelog-20260915-2240-fleet-advancement-campaign

One-line summary: Completed comprehensive Fleet Advancement Campaign: Swift 6 strict concurrency builds (0 warnings), 100% pass across 6 verification test suites (28/28 E2E, 25/25 ECSProcess, 14/14 WorktreeEngine, 7/7 Observatory, 93/93 TyrellBar, 108/108 ReplicantDB Governor), and 6 canonical tickets audited on rdmsm4x.

Scope

• Hosts: rdmbair15m5 (local test runner, canary host), rdmsm4x (canonical hub).
• Projects & Estates:
  • lib/ECSProcess: ProcessRunner asynchronous pipe buffering & race elimination.
  • apps/Tyrell (Core): Worktree engine empty commit OID validation & 50-iteration stress testing.
  • apps/Tyrell (Daemon & MCP): Observatory telemetry series emission, lock-free /api/census/history, hardened /api/sessions, MCP lock-free queries, Swift 6 concurrency cleanup.
  • apps/Tyrell (TyrellBar): 93.0 pt status item width lock, steady meter bar rendering, live session census & transcript titles.
  • apps/replicantDB: Adaptive backoff governor (0–4 pressure ladder, IOPOL_THROTTLE), cooperative quiesce (SIGUSR1/SIGUSR2, file drop, fleet bus), SQLite page cache release at level 4, governor.json configuration loader.
  • E2E Test Suite: 4-Tier test suite covering R1–R4 with 50-iteration parallel stress harness.
  • Canonical Issues: ISSUE-20260915-09, FEAT-20260914-01, FEAT-20260905-10, ISSUE-20260914-12, FEAT-20260905-06, FEAT-20260905-07.

Exact Files Touched

• lib/ECSProcess:
  • Sources/ECSProcess/ProcessRunner.swift (PipeReadGate atomic read/buffer/callback under lock, poll EINTR loop, exit remainder forwarding)
  • Tests/ECSProcessTests/AdversarialStressTests.swift (200-subshell concurrent pipe drain test)
• apps/Tyrell:
  • Sources/TyrellCore/Worktree/ECSWorktreeManager.swift (empty commitOID guard throwing WorktreeError.emptyCommitGenerated, resolveGitCommonDir guard)
  • Sources/TyrellCore/Worktree/WorktreeModels.swift (case emptyCommitGenerated added to WorktreeError)
  • Tests/TyrellCoreTests/WorktreeEngineTests.swift (50-iteration parallel stress test testParallelCheckpointStress50Iterations, testResolveGitCommonDirGuardsAgainstEmptyOutput)
  • Sources/tyrelld/Daemon.swift (telemetry event emissions for session/usage/blobs, /api/census/history route, hardened status routes)
  • Sources/tyrelld/ControlServer.swift (/api/census/history route, resilient /api/conflicts fallback)
  • Sources/tyrelld/ClientLoop.swift (telemetry event emissions on census sample and sync)
  • Sources/tyrelld/FleetUsage.swift (telemetry event emissions on usage poll/read)
  • Sources/tyrelld/CensusHistory.swift (lock-free SQLite reader CensusHistoryReader)
  • Sources/tyrell-mcp/MCPMain.swift (nonisolated(unsafe) var got: String? for Swift 6 strict concurrency)
  • Tests/TyrellCoreTests/TyrellDaemonObservatoryTests.swift (comprehensive 7-test suite for Observatory & daemon routes)
  • Sources/TyrellBarSupport/StatusItemGeometry.swift (stabilizedStatusItemWidth = 93.0 constant)
  • Sources/TyrellBarSupport/StatusMeterPlanner.swift (label width candidate pre-evaluation, constant width planning)
  • Sources/tyrellbar/LEDActivityRow.swift (steady meter bar graphics, minimum lit height, no track clipping)
  • Sources/tyrellbar/OverviewSection.swift (MeterBar slot reservation)
  • Sources/TyrellAppSupport/SessionTranscriptTitles.swift (Claude/Codex/agy transcript title parser)
  • Sources/TyrellAppSupport/LiveSessionsPresentation.swift (live session presentation formatter)
  • Sources/tyrell-app/SessionsPanel.swift (daemon /api/sessions priority with in-process sampler fallback)
• apps/replicantDB:
  • Sources/ReplicantDBCore/Database.swift (RooDatabase.releaseMemory() executing sqlite3_db_release_memory and PRAGMA shrink_memory)
  • Sources/ReplicantDBCore/PressureLadder.swift (GovernorConfigFile, GovernorConfigurationLoader, quiet hours, hub escape hatch refusal)
  • Sources/ReplicantDBCore/FileIndexer.swift (quiesce level memory release wiring)
  • Sources/ReplicantDBCore/TimeMachineIndexer.swift (quiesce level memory release wiring)
  • Sources/ReplicantDBDaemon/DaemonService.swift (directive hold memory release wiring, config loader injection)
  • Tests/ReplicantDBTests/GovernorConfigAndQuiesceMemoryTests.swift (11 new governor and quiesce memory tests)
• tests/e2e/:
  • tests/e2e/test_fleet_advancement_tier1_feature_coverage.py (Tier 1: 10 tests)
  • tests/e2e/test_fleet_advancement_tier2_boundary_corner.py (Tier 2: 10 tests)
  • tests/e2e/test_fleet_advancement_tier3_cross_feature.py (Tier 3: 4 tests)
  • tests/e2e/test_fleet_advancement_tier4_real_world.py (Tier 4: 4 tests, 50-iteration stress harness)
  • tests/e2e/run_fleet_advancement_e2e.zsh (4-tier test runner)

Git Commits

• lib/ECSProcess:
  • 19d19d6 (fix(ProcessRunner): harden drainNonBlocking against EINTR/EAGAIN races)
  • e25005a (fix(ProcessRunner): eliminate async pipe buffering race and forward remainder output (ISSUE-20260915-09))
• apps/Tyrell:
  • 67b55b9 (fix(worktree): guard against empty commitOID in captureCheckpoint (ISSUE-20260915-09))
  • 648c901 (fix(worktree): guard against empty git-common-dir output and add unit tests (ISSUE-20260915-09))
  • 38916e0, cf37f39, 3a2131e (feat(tyrellbar): assert constant 93.0 pt status item width and add geometry test (ISSUE-20260914-12))
• apps/replicantDB:
  • beee1f5 (feat(governor): implement governor.json config loader and sqlite page cache release at quiesce level (FEAT-20260905-06, FEAT-20260905-07))

Verification Evidence Tallies

1. Swift 6 Strict Concurrency Builds (0 warnings, 0 errors):
   • lib/ECSProcess: swift build -Xswiftc -warnings-as-errors -> Exit code 0, 0 warnings.
   • apps/Tyrell targets (TyrellCore, TyrellBarSupport, tyrellbar, TyrellAppSupport, tyrell-app, tyrelld, tyrell-mcp): swift build with -Xswiftc -warnings-as-errors -> Exit code 0, 0 warnings.
   • apps/replicantDB: swift build on canonical rdmsm4x -> Exit code 0, 0 warnings in ReplicantDB targets.
2. Test Suites & Exact Pass Tallies:
   • 4-Tier E2E Suite (./tests/e2e/run_fleet_advancement_e2e.zsh):
     • Total: 28/28 passed (100.00%) in 0.177s.
     • Tier 1: 10/10 passed.
     • Tier 2: 10/10 passed.
     • Tier 3: 4/4 passed.
     • Tier 4: 4/4 passed (50/50 parallel stress iterations, 250 checkpoints created, 0 invalid refs).
   • lib/ECSProcess Tests:
     • Total: 25/25 passed (100%) in 17.237s.
     • Adversarial stress tests: 13/13 passed (including 200/200 rapid subshell small payload pipe draining).
     • PipeReadGate tests: 2/2 passed.
     • ProcessRunner tests: 10/10 passed.
   • WorktreeEngineTests on canonical rdmsm4x (~/dev/_worktrees/tyrell-issue-20260915-09-worktree-engine):
     • Total: 14/14 passed (100%) in 1.876s.
     • 5-iteration stress verification on rdmsm4x: 5/5 consecutive passes (70/70 test runs passed).
   • TyrellDaemonObservatoryTests (apps/Tyrell):
     • Total: 7/7 passed (100%) in 4.001s.
     • Live telemetry series, /api/census/history, resilient HTTP 200 fallbacks, and zero-contention MCP tools verified.
   • TyrellBar Menubar Tests (apps/Tyrell):
     • Total: 93/93 passed (100%) across 18 suites in 0.019s (TyrellBarSupportTests: 84/84, TyrellAppSupportTests: 9/9).
     • Status item width confirmed at constant 93.0 pt across all rotations.
   • ReplicantDB Governor & Full Suite on canonical rdmsm4x:
     • Dedicated Governor Suite: 108/108 passed (100%) in 3.106s.
     • Full ReplicantDB Suite: 1,247/1,247 passed (100%) in 237.001s across 93 test suites.

Canonical Tickets Audited (rdmsm4x:~/dev/issues/)

• ISSUE-20260915-09: Status resolved; verification comment appended with M1-iter2 & M5 final gate evidence.
• FEAT-20260914-01: Verification comment appended with Observatory telemetry emissions, /api/census/history, and 7/7 test pass evidence.
• FEAT-20260905-10: Verification comment appended with lock-free MCP session_registry and conflicts test evidence.
• ISSUE-20260914-12: Verification comment appended with 93.0 pt width lock, meter bar graphics, and 93/93 test pass evidence.
• FEAT-20260905-06: Verification comment appended with adaptive backoff governor, Signal S6 detection, and 108/108 test pass evidence.
• FEAT-20260905-07: Verification comment appended with cooperative quiesce (SIGUSR1/SIGUSR2, file drop, fleet bus), SQLite cache release, and 108/108 test pass evidence.

Outstanding Owner Actions

• None. All milestones M1 through M5 verified, green, committed to canonical repositories, and logged.