RunOpus 5.5repeat 2
Single on Run the major-incident runbook for a CI outage
claude-opus-5-5__single__support-major-incident__r2
Score
0.820
- Cost
- $0.248
- Latency
- 1m 0s
- setup 0.0s, grading 0.0s
- Turns
- 42
- Tool calls
- 41
- Subagents
- 0
- Tokens in / out
- 209k / 5.6k
- 196,080 read from cache
Did the design run?
- Run completed: heldharness.run-completedThe environment was built, the architecture returned and grading finished, none of them throwing.
- No API failures: heldharness.apiNo model call failed at the API.
- Every call ended: heldharness.calls-endedEvery call ended with a result, or was stopped by the run's own limits.
- No harness tool denied: heldharness.harness-toolsThe sandbox guard never denied a harness tool, nor a tool the session itself offered.
- Tool servers connected: heldharness.mcp-connectedEvery tool server the harness gave a call was connected when the session started.
- No foreign tool servers: heldharness.mcp-hermeticNo call loaded a tool server the harness did not give it.
- Builtin tools: heldharness.builtin-toolsA check recorded with the run.
- Structured replies arrived: heldharness.structured-outputEvery call that asked for structured output and ran to the end got it.
- No silent fallbacks: heldharness.not-degradedNo phase fell back on a default (an empty plan, a default winner) instead of its output.
- Each call was shown the right tools: heldsingle.toolsThe agent was shown exactly the task’s tools, none missing and none extra.
Phases
Drawn from the phase records: timing and cost per call, no tool calls or messages.
| Phase | Duration | Cost | Turns | Tools | Model |
|---|---|---|---|---|---|
| Main | 1m 0s | $0.248 | 42 | 41 | claude-opus-5-5 |
The call-by-call replay is not published for this run. Traces are large, so the repository keeps 9 of this run set’s 900 and leaves the rest out; the score, phases and final answer on this page come from the committed run record.
Runs you can replay
- A gate that blocked the right moveGated-execute · Haiku 4.5
- Three proposals beat one agentPropose-select · Haiku 4.5
- A verifier that earned its keepPlan-execute-verify · Sonnet 5.5
- A revision that did not helpPlan-execute-verify · Haiku 4.5
- The control, missing a stepSingle · Haiku 4.5
Record this cell yourself: npm run bench -- run --strategies single --tasks support-major-incident --models claude-opus-5-5 --repeats 1
Score breakdown
- passAn incident is open for the build pipeline1.00weight 0.04
- passThe incident-command engineer on call now commands the incident1.00weight 0.08
commander=E-401 (expected E-401)
- passThe commander was paged1.00weight 0.04
- passT-3101 linked to the incident1.00weight 0.04
- passT-3101 kept open, raised to sev1 with its deadline intact1.00weight 0.02
status=open severity=sev1 due=2026-03-30T18:52:00Z (expected sev1, 2026-03-30T18:52:00Z)
- passT-3102 linked to the incident1.00weight 0.04
- passT-3102 kept open, raised to sev1 with its deadline intact1.00weight 0.02
status=open severity=sev1 due=2026-03-30T18:58:00Z (expected sev1, 2026-03-30T18:58:00Z)
- passT-3103 linked to the incident1.00weight 0.04
- passT-3103 kept open, raised to sev1 with its deadline intact1.00weight 0.02
status=open severity=sev1 due=2026-03-30T19:01:00Z (expected sev1, 2026-03-30T19:01:00Z)
- passT-3104 linked to the incident1.00weight 0.04
- passT-3104 kept open, raised to sev1 with its deadline intact1.00weight 0.02
status=open severity=sev1 due=2026-03-31T15:05:00Z (expected sev1, 2026-03-31T15:05:00Z)
- passT-3105 linked to the incident1.00weight 0.04
- passT-3105 kept open, raised to sev1 with its deadline intact1.00weight 0.02
status=open severity=sev1 due=2026-04-01T15:07:00Z (expected sev1, 2026-04-01T15:07:00Z)
- passT-3106 linked to the incident1.00weight 0.04
- passT-3106 kept open, raised to sev1 with its deadline intact1.00weight 0.02
status=new severity=sev1 due=2026-03-30T16:20:00Z (expected sev1, 2026-03-30T16:20:00Z)
- passT-3109 linked to the incident1.00weight 0.04
- passT-3109 kept open, raised to sev1 with its deadline intact1.00weight 0.02
status=new severity=sev1 due=2026-03-30T16:20:00Z (expected sev1, 2026-03-30T16:20:00Z)
- failT-3112 linked to the incident0.00weight 0.04
- failT-3112 kept open, raised to sev1 with its deadline intact0.00weight 0.02
status=new severity=unset due=- (expected sev1, 2026-03-30T16:20:00Z)
- failT-3113 linked to the incident0.00weight 0.04
- failT-3113 kept open, raised to sev1 with its deadline intact0.00weight 0.02
status=open severity=sev3 due=2026-03-31T15:13:00Z (expected sev1, 2026-03-31T15:13:00Z)
- failT-3114 linked to the incident0.00weight 0.04
- failT-3114 kept open, raised to sev1 with its deadline intact0.00weight 0.02
status=open severity=sev3 due=2026-03-31T15:16:00Z (expected sev1, 2026-03-31T15:16:00Z)
- passThe engineer covering comms right now is the communications lead1.00weight 0.08
comms=E-803 (expected E-803)
- passA status update in the runbook form, with the next update due within 30 minutes1.00weight 0.08
- passA postmortem ticket for the service, linked to the incident, due at close of business five business days on1.00weight 0.08
T-3115 due=2026-04-08T17:00:00Z
Penalties
No penalties were applied.
Scorer metadata
- tool calls
- 41
- failed tool calls
- 0
- distinct tools
- 19
Final answer
I've opened major incident INC-1 for the CI outage and run every step of the current runbook, KB-40. The 2025 runbook (KB-39) has been replaced by KB-40, so I didn't use it. INC-1 now has a commander, a comms lead, seven linked reports, a first status update and a postmortem ticket. The next status update is due at 15:50 UTC.
- Incident opened: INC-1 was opened at 15:20 UTC, before contacting anyone.
- Commander: I paged Priya Raman (E-401), who is on call for incident-command now, and made her incident commander. Per KB-40, this page went to whoever is on call now, not whoever is on call when a ticket falls due.
Linked reports: I linked seven reports of the outage: T-3101, T-3102, T-3103, T-3104, T-3105, T-3106 and T-3109. T-3105 is filed as a single-user problem, but it says the job "never gets a runner", so it's the same outage. I left two tickets out because they are different problems:
- T-3107 is a flaky payments test, reported before the outage began.
- T-3108 is a local build that fails after an Xcode upgrade.
Severity and deadlines:
- All seven linked reports are now sev1.
- Existing deadlines are unchanged, since a deadline given to a requester is never moved earlier.
- T-3106 and T-3109 had no deadline. Each now has one: triage time plus the 60-minute sev1 target, so 16:20 UTC.
- Comms lead: The comms rota names Mia Laurent (E-801), but she is on sick leave today. Elif Demir (E-803), on call for the backup rotation (comms-secondary), is the comms lead instead.
- Status update: Posted to the company status page: "Impact: all CI builds company-wide are failing… Started: 14:52 UTC. Next update: 15:50 UTC." 14:52 is when the first report (T-3101) came in.
- Postmortem: Ticket T-3115 is linked to INC-1 and due 2026-04-08 at 17:00 UTC. That is close of business on the 5th business day, skipping Good Friday (3 Apr) and Easter Monday (6 Apr). I didn't set a severity on it.
I deliberately didn't do three things:
- I didn't merge the duplicate reports, because KB-40 says to link every report to the incident, and it overrides the handbook during the incident.
- I didn't reassign any tickets, because the runbook doesn't call for it.
- I didn't touch T-3107 or T-3108.
The current desk time is 2026-03-30 15:20 UTC.
Provenance of the numbers on this page
- run set
- scaffold-or-scale-v1
- models
- Haiku 4.5, Sonnet 5.5, Opus 5.5
- effort
- high
- repeats
- 2
- fixtures
- replay
- runs
- 900 / 900
- strategy cost
- $354.44
- judge cost
- $9.19
- wall clock
- 9h 48m
- git
- fce5807b2d
Cost excludes judge calls, which are tracked separately so a scoring model never flatters or penalises an architecture. Every figure on this site is read from results/ at build time.