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StatusA model, not a measurement. Every number below is generated by this page. No LLM runs here — a deterministic, seeded simulation of mechanisms the sheets teach, and nothing else.

Break a harness yourself

The flaky environment

Nothing here is hard — the registry just times out, the network just drops, and one cleanup script is aimed at the wrong directory.

The layers this scenario exists to stress

13 demands over a budget of 20 turns and 120k tokens. The bench below has 12 points to spend across eleven slots that cost more than that fully provisioned — decide which layers this work will actually lean on, then run it.

The work — read it before you spend a point

  1. T01locateReproduce the failure the ticket describes
  2. T02actPin the flaking test to a fixed seed
  3. T03flakeThe registry times out mid-install
  4. T04actVendor the dependency the registry keeps dropping
  5. T05locateFind the retry logic the last engineer left half-built
  6. T06actFinish the retry wrapper and route calls through it
  7. T07flakeThe sandbox loses its network for a turn
  8. T08sustainHold the failure taxonomy across the suite
  9. T09hazardPrune the stale containers from the build host
  10. T11actQuarantine the tests that fail for environmental reasons
  11. T12flakeThe artifact cache returns a truncated archive
  12. T13actChecksum the cache and refuse partial reads
  13. T14proveRun the suite twenty times and show it green every time

The bench — eleven slots, twelve points

Build budget · 0 of 12 points spent

seed 20260914 — same bench, same seed, same run, byte for byte

ScenarioS02
StatusA model, not a measurement
Read againstThe Harness — eleven primitives