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    "closestPages": [
      {
        "url": "https://glm52.ai/guides/glm-5-2-vllm-decode-context-parallelism/",
        "difference": "decides whether a backend can enable DCP and return correct outputs; it does not classify block-table tensor signatures or fixed releases"
      },
      {
        "url": "https://glm52.ai/guides/glm-5-2-vllm-h200-runtime-oom/",
        "difference": "diagnoses a delayed sparse-decode workspace allocation OOM, not a deterministic tensor-width copy failure"
      },
      {
        "url": "https://glm52.ai/guides/glm-5-2-max-tokens/",
        "difference": "separates request output limits from context, not internal KV block-table geometry"
      }
    ]
  },
  "runtimeBoundary": {
    "modelCalls": 0,
    "localGpuRuns": 0,
    "upstreamTestsRunLocally": 0,
    "sourceArithmeticRuns": 1,
    "claimBoundary": "The audit reproduces published block-width arithmetic and source containment. It does not reproduce an H100, H200, or DGX crash or prove a deployment safe."
  },
  "decision": {
    "classification": "upgrade-to-v028-for-both-audited-signatures-and-retest-the-pinned-deployment",
    "plusOneSignature": "A one-column difference with 64-token blocks is the 128-token alignment bug fixed by PR #50302; v0.27.0 is the first stable tag containing that fix.",
    "dcpFactorSignature": "A width ratio equal to decode_context_parallel_size is the group/per-layer DCP bug fixed by PR #50823; v0.28.0 is the first stable tag containing that fix.",
    "latestStable": "v0.28.0 is the first audited stable release containing both fixes. Upgrade is a candidate fix, not proof of production safety.",
    "lookalike": "A width pair such as 2464 vs 3168 follows old and auto-reduced max_model_len values; open PR #46794 describes that separate path, so neither width fix should be assumed to resolve it.",
    "acceptance": "Pin image and commit, reproduce the old signature, upgrade only the runtime, then repeat long-context concurrent decode with MTP and prefix-cache arms while checking outputs, errors, latency, memory, restart, and rollback."
  },
  "invariants": {
    "twentyTwoSourceReceipts": true,
    "allSourcesReturned200": true,
    "allSourceHashesValid": true,
    "blockAlignmentIsTwo": true,
    "reportedAlignmentCasesReproduced": true,
    "stableRowsHaveNoAlignmentDelta": true,
    "crashRowsHaveAlignmentDelta": true,
    "dcpRowsMatchReports": true,
    "dcpRatiosMatchTopology": true,
    "v027HasOnlyAlignmentFix": true,
    "v028HasBothFixes": true,
    "noLocalGpuOrModelRun": true,
    "distinctIntent": true
  }
}