{
  "status": "Source-only justified slice authored; full IR87 remains dependent on workflow coordination. No acceptance claimed.",
  "changed_files": [
    {
      "path": "crates/spt-daemon/tests/twohost_web.rs",
      "changes": [
        "Added Rig.rendezvous from SPT_TWO_HOST_RENDEZVOUS_SECS, default 300, tagged against existing REQ-GOLDEN-CI-LANE.",
        "Moved A's existing probe-listen deadline and B's existing pre-beacon deadline onto that separate budget.",
        "Preserved WAIT_SECS default 300, all ceremony/convergence rung deadlines, PROBE_WINDOW 10 seconds, ACK_WINDOW 2 seconds, socket topology and arrival assertions.",
        "Changed A's unsupported INBOUND_BLOCKED attribution to PROBE_RENDEZVOUS_UNVERIFIED: missing B/scheduler readiness versus blocked delivery cannot be distinguished from receiver silence. Diagnostic requires matching run/attempt job and sender evidence before network attribution; conditional network guidance remains.",
        "Updated B's no-beacon diagnostic and inline budget descriptions consistently."
      ]
    }
  ],
  "intentionally_unchanged": [
    "crates/spt-daemon/tests/twohost.rs: pairing and all rung clocks unchanged; there is no existing independent pre-pair fixture-ready carrier. Pairing/roster as readiness would consume or hide the behavior being measured.",
    "crates/spt/tests/twohost_cli.rs: all clocks/rungs unchanged. Replicated notification/registry readiness depends on product convergence and therefore cannot independently measure scheduler readiness.",
    "No workflow, registry, runbook, production, firewall or unrelated files edited."
  ],
  "workflow_interface_needed": {
    "budget": "Set SPT_TWO_HOST_RENDEZVOUS_SECS explicitly for both inbound-probe jobs (currently WAIT_SECS=300 is used for that purpose). Preserve WAIT_SECS=900 on ladder/web/CLI ceremony steps. Source default for both budgets remains 300; no longer rendezvous budget was invented.",
    "identity": "Coordination must be scoped by repository + GITHUB_RUN_ID + GITHUB_RUN_ATTEMPT + exact head SHA + phase + role; a prior attempt or completed peer cannot satisfy readiness.",
    "phases": [
      "ladder",
      "inbound-probe",
      "web",
      "gated-cli"
    ],
    "scheduler_gate": "After required phase builds/preconditions, use independently observed GH Actions matching peer job/phase state, not product traffic. Missing/queued is RENDEZVOUS_PENDING; terminal/cancelled/skipped/failed-before-ready must fail as RENDEZVOUS_FAILED and preserve raw conclusion. Job in_progress alone excludes queued-runner starvation, but does not prove fixtures ready.",
    "full_fixture_gate": "For the stronger both-fixtures-ready contract, the workflow driver must keep each test process alive and exchange actual local READY receipts before releasing convergence. Existing code has no such out-of-band receipt/release mechanism; none was fabricated. Author that shared orchestrator contract before inserting source hooks.",
    "source_hook_locations": [
      "Ladder B: after engine-room session setup, immediately before responder roster wait (currently around line 1129). Ladder A: after rig_broker startup, before the pairing block around line 1954.",
      "CLI B: after daemon/ticker setup, before first replication-up rig_wait around line 804. CLI A: after DaemonGuard::start, before first replication-up rig_wait around line 1189.",
      "Web B: after serving fixtures/dispatcher and local helper-origin preparation, before helper send deadline. Web A fetch/range/deny: after requester setup, before fetch_when_up. Helper A: after audience/gateway preparation and dispatch setup, before helperline deadline.",
      "Probe readiness: after both sockets are bound, preserving A's never-send listening socket and existing B beacon-started 10-second measurement."
    ]
  },
  "remaining_gaps": [
    "IR87's exact queued-Windows/active-Linux ladder failure is not fixed solely by the authored probe change; workflow scheduling/readiness remains mandatory.",
    "A's probe cannot tell absent B from blocked B without independent sender evidence. It now reports that limitation rather than falsely claiming exclusion.",
    "Web coordination must identify selected requester cells individually (offsets 0/1/2/3); an all-cells simultaneous barrier can deadlock sequential or filtered runs. EXPECT_CELLS counts served outcomes (helper contributes two), not participant count.",
    "Current web workflow invokes the whole twohost_web binary after the dedicated probe step, so probe tests run again. Their independent rendezvous default is now 300 even when that invocation sets WAIT_SECS=900; explicitly configure the intended rendezvous budget without changing ceremony budgets.",
    "Docs owner should update TWO-HOST-RUNBOOK budget table: remove claim that ceremony900 absorbs runner skew; document new independent probe rendezvous env and unverified receiver-silence outcome. Registry/IR87 closure must wait for orchestration and proof."
  ],
  "verification": {
    "executed": "Static reads and source edits only, as explicitly ordered. No build/test/formatter/linter/checker/fixture/diagnostic/generation commands executed.",
    "unexecuted_commands": [
      "cargo test -p spt-daemon --test twohost -- --nocapture",
      "cargo test -p spt-daemon --test twohost_web two_host_inbound_probe -- --nocapture",
      "cargo test -p spt-daemon --test twohost_web -- --nocapture",
      "cargo test -p spt --test twohost_cli -- --nocapture"
    ],
    "deferred_scenarios": [
      "Delay/queue A beyond the ceremony budget while B remains in independent rendezvous; prove convergence starts only after both ready.",
      "Missing/cancelled/failed peer and stale run-attempt readiness must fail as rendezvous, not pairing.",
      "Both ready with genuine pairing failure must consume unchanged ceremony budget and retain pairing attribution.",
      "Late/missing probe B must produce PROBE_RENDEZVOUS_UNVERIFIED; genuine matching probe arrival must still satisfy the unchanged assertion.",
      "Run CLI fixtures only with SPT_INSTALL_NO_FIREWALL=1; no fixtures were launched here."
    ]
  }
}