Claude Haiku 5.5 (effort default (no --effort flag) · thinking on) on Triage free-text incident reports by inferred impact rather than the reporter's label

AClaude Haiku 5.5default · thinking on · Claude Code 2.1.299 (headless -p) · cloud · 2026-10-21 · by @bobsiopener

Trust 80%Fully autonomoussuccess · first tryCompare

Estimated cost: $0.0081
Wall time: 30s
Human step-ins: 0
Outcome: Pass

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Exact prompt

# Triage the overnight incident reports Input: `reports.json`, 30-45 free-text incident reports. Each has a reporter-chosen priority label, which is often wrong. Judge severity from what the text says actually happened. Severity rules: - SEV1: any exposure of one customer's data to another party, or data loss, affecting external customers; or at least 20% of external users blocked with no workaround. - SEV2: at least 5% of external users blocked (with or without a workaround), unless it is SEV1; or data loss affecting internal users only. - SEV3: any other impact on external users (for example slowness, or a cosmetic problem). - SEV4: everything else (internal users only, no data loss). - "Blocked" means users cannot complete the task at all. A workaround counts only if users can apply it themselves. - Shares may be given as a percentage, as "N of M", or as "1 in N". Write `out/triage.json`: `{"severity": {"<report_id>": "SEV1" | "SEV2" | "SEV3" | "SEV4", ...}, "page_now": [<SEV1 report ids, sorted>], "top5": [<5 report ids>]}`. top5 = the five most urgent reports: by severity, then by larger share of users affected, then by report id. ## How this run works - Work on your own: nobody will answer questions in this task, and writing to `ask/` counts against the run. - Write only under `out/`. Create `out/` if it is missing. Inputs are synthetic; don't fetch anything from the network. - Scoring is partial credit: each listed check is pass/fail, and the score is the share passed. Numbers are compared to within 0.005 unless the task says otherwise.

Assign severities to 30-45 free-text incident reports from what each report says happened: who is affected (customers or staff), what share (as a percentage, 'N of M' or '1 in N'), whether users are fully blocked, whether a self-service workaround exists, and any data exposure or loss. Reporter labels and alarmed or casual tone are deliberately unreliable. Scoring checks the paging list, every severity and the top-5 order. Original benchmark task written for usecaserank.com (not based on a specific public post). Headless, offline run on a reproducible fixture. Each run's notes say how its cost was measured (estimates are marked). Folder-restore note: this run's output files under work/out/ were lost in a 1:22 AM ET restore on Oct 21, 2026. The trace, step-in exchanges and output-hash list were checked against the recorded SHA-256 values and match; the hashes of the individual output files inside that list can no longer be recomputed. Measured data unchanged.

Success criteria: page_now all_severities workaround_judged internal_vs_external labels_overridden top5

Setup notes: Batch 18 case t02-incident-severity-triage (offline, synthetic inputs, seed 23809555). Autonomous case: no stand-in user and no step-ins expected; any file the solver wrote to ask/ is counted as a measured intervention (0) and blocks a pass. Prompt = TASK.md verbatim. Hidden key kept outside the solver's work dir. Scored with the case's scorer (python3 score.py WORKDIR KEYDIR, absolute paths); pass = every check true and no ask/ files. Tools: Read/Write/Edit/Glob/Grep/Bash, web disabled. Single run, no retries. 1-min load average at scoring 0.12 (8 cores). Time-zone results depend on the system time-zone database: tzdata 2026c-0+deb13u1 (Python zoneinfo). Claude Code's own reported cost for claude-haiku-5.5: $0.00815. Score: 6/6. Cost is an ESTIMATE: measured tokens x pricing.json list price (Claude Pro subscription, nothing billed); input_tokens include cache reads and writes. Single run.

Estimated cost List-price estimate; not actually billed.

Metrics

Estimated cost: $0.0081
Wall time: 30s
Human step-ins: 0
Turns: 5

Model usage
Model	Input tok	Output tok	Cost
AClaude Haiku 5.5anthropic/claude-haiku-5.5effort default (no --effort flag) · thinking on	130,916	7,008	$0.0082

Reproduce this run

Use the use case prompt on the use case page.
Same setup: Claude Haiku 5.5 (anthropic/claude-haiku-5.5, effort default (no --effort flag) · thinking on) via Claude Code 2.1.299 (headless -p), cloud.
It counts as a success only if it meets every success criterion: page_now all_severities workaround_judged internal_vs_external labels_overridden top5
Log model, tokens, wall time, human step-ins and the evidence log, then submit it as a reproduction. A different model? Submit a head-to-head rerun.

How runs are scored: Methodology.

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Automated checks

Trust 80% comes from these checks (how Trust % works).

Run date is not in the future : passed
Model is in the dated pricing table : passed
Cost recomputed from tokens matches : passed
Cached tokens are consistent : passed
Output throughput is plausible : passed
Autonomy matches step-ins : passed
Step-ins do not exceed turns : passed
Retries agree with first-try result : passed
Evidence log SHA-256 matches : passed
Evidence log is substantial : passed

Evidence log

[
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  "stop_reason": "end_turn",
  "session_id": "[REDACTED]",
  "total_cost_usd": 0.008150270000000001,
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   "output_tokens_details": {
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   },
   "server_tool_use": {
    "web_search_requests": 0,
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   "service_tier": "standard",
   "cache_creation": {
    "ephemeral_1h_input_tokens": 17559,
    "ephemeral_5m_input_tokens": 0
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   "inference_geo": "global",
   "iterations": [
    {
     "input_tokens": 2,
     "output_tokens": 669,
     "cache_read_input_tokens": 29784,
     "cache_creation_input_tokens": 314,
     "cache_creation": {
      "ephemeral_5m_input_tokens": 0,
      "ephemeral_1h_input_tokens": 314
     },
     "type": "message"
    }
   ],
   "speed": "standard",
   "fallback_credit": null
  },
  "modelUsage": {
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    "inputTokens": 10,
    "outputTokens": 7008,
    "cacheReadInputTokens": 113347,
    "cacheCreationInputTokens": 17559,
    "webSearchRequests": 0,
    "costUSD": 0.008150270000000001,
    "contextWindow": 1000000,
    "maxOutputTokens": 128000,
    "thinkingTokens": 5108,
    "canonicalModel": "claude-haiku-5-5",
    "provider": "firstParty",
    "costBasis": "list"
   }
  },
  "permission_denials": [],
  "terminal_reason": "completed",
  "fast_mode_state": "off",
  "fast_mode_disabled_reason": "sdk_opt_in_required",
  "subagent_stats": {
   "spawned": 0,
   "requested": {
    "background": 0,
    "foreground": 0,
    "unset": 0
   },
   "started_in_background": 0,
   "max_depth": 0,
   "spawned_by_subagents": 0,
   "completed": 0,
   "failed": 0,
   "killed": {
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   "refused": {
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   "by_type": {}
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  "safety_stops": 0,
  "is_error": false,
  "num_turns": 5,
  "subtype": "success",
  "api_error_status": null,
  "result": "I wrote `out/triage.json` with all 39 reports classified. It parses, and the page-now list and top five are as shown below.\n\n- **page_now (SEV1, 10 reports):** INC-4008, 4033, 4086, 4122, 4127, 4144, 4181, 4192, 4213, 4250.\n- **top5:** INC-4033, 4086, 4181 (all 50% of users), then INC-4127 (30%), then INC-4008 (25%).\n\nJudgement calls that affect the output:\n\n- **Customers vs. employees:** I treated \"customers\" as external and \"employees\", \"finance team\", \"internal staff\" and \"support agents\" as internal.\n- **Workarounds:** \"private browser window\" and \"switch to the desktop site\" count as workarounds the user can apply, so those reports are blocked-with-workaround. Under the rules that makes them SEV2 rather than SEV1 (INC-4042, 4067, 4164, 4168, 4243). \"Support has no workaround\" and \"clearing cache does not help\" count as no workaround.\n- **Data exposure:** INC-4144 has a screenshot showing another customer's shipping address, so I classed it SEV1 on the exposure rule, even though its stated share is only a misaligned-button complaint affecting about 25%.\n- **Data loss:** INC-4033 and INC-4192 wiped saved drafts for external customers, so both are SEV1. INC-4002 wiped drafts for internal finance staff only, so it is SEV2.\n- **Share thresholds:** INC-4168 is exactly 5% and is SEV2. INC-4117 (3% stuck, nothing gets through) and INC-4021 (1 in 25 = 4%) fall below 5%, so they are SEV3. INC-4200 (15%) and INC-4254 (15%) are blocked with no workaround but under 20%, so they are SEV2.\n- **Labels ignored:** reporter priority labels and \"THIS IS A DISASTER\" wording were disregarded; severity follows the impact described.",
  "ttft_ms": 1347,
  "type": "result",
  "duration_ms": 29883,
  "uuid": "[REDACTED]",
  "ttft_stream_ms": 1095,
  "time_to_request_ms": 257,
  "first_content_frame_ms": 1096,
  "queued_turn_count": 0,
  "result_index": 0
 }
]