{
 "number": 36318,
 "input_hash": "8fea2f41a31601fa",
 "model": "ledger",
 "prompt_hash": null,
 "created": "2026-09-24T02:49:39+00:00",
 "result": {
  "summary": "Enforces that invalid `ValidationState` instances always have a concrete failure `Result` enum and a non-empty `reject_reason`. Adds `BlockValidationResult::BLOCK_INCONCLUSIVE` across consensus validation, net processing, and the kernel C API to represent tests where block validity cannot be evaluated, replacing an unset result in `TestBlockValidity`.",
  "problem": "Callers could construct an invalid `ValidationState` with an unset result enum or an empty reject reason string, leaving downstream consumers like P2P punishment logic and the kernel C API with ambiguous state. Specifically, `TestBlockValidity` used an unset result when a block did not connect to the active chain tip.",
  "card": "validation: Ensure Invalid ValidationState has result enforces that all invalid validation states specify both an explicit failure enum and a non-empty reject reason. It introduces `BLOCK_INCONCLUSIVE` to represent checks whose validity could not be resolved (e.g., when a block does not connect to the current chain tip in `TestBlockValidity`) and updates the kernel C API and net processing accordingly. This addresses an unset result introduced in PR #31981 and adds an `Assume` invariant to prevent incomplete validation error states.",
  "evidence": [
   "Commit message (ee04f82075): 'A violating usage in `TestBlockValidity` is being changed: instead of the default `BLOCK_RESULT_UNSET`, it now uses `BLOCK_INCONCLUSIVE`.'",
   "PR description notes that PR #31981 moved a check into `TestBlockValidity` that introduced a `BlockValidationState` with an unset result, which was noted in review on #35570."
  ],
  "scope_notes": "",
  "changed_since_previous": "",
  "thread": {
   "last_event_at": "2026-09-23T16:00:10Z",
   "events": 3,
   "head_sha": "22cf9d54b3fd9561b6b3ad057264dcb2ddbfef56",
   "schema_floor": 1,
   "schema": 2
  },
  "waiting_on": [
   {
    "at": "2026-09-23",
    "id": "c:5798176625",
    "on": "reviewer",
    "url": "https://github.com/bitcoin/bitcoin/pull/36318#issuecomment-5798176625",
    "what": "review after undrafting"
   },
   {
    "at": "2026-09-23",
    "id": "c:5798176625",
    "on": "reviewer",
    "url": "https://github.com/bitcoin/bitcoin/pull/36318#issuecomment-5798176625",
    "what": "initial review after undrafting"
   }
  ],
  "risk": {
   "level": "medium",
   "touches": [
    "validation",
    "p2p"
   ],
   "why": "A faulty validation result invariant or misclassification could trigger debug assertions or improperly punish or fail to penalize P2P peers."
  },
  "discussion": {
   "author_status": "last statement processed 2026-09-23",
   "open_concerns": [],
   "resolved_concerns": []
  },
  "reviewability": {
   "state": "Ready",
   "label": "Ready",
   "reason": "Nothing known that would invalidate a review now."
  },
  "agreement": {
   "state": "Crickets",
   "summary": "Crickets: no substantive comment either way",
   "reason": "Initial read. No objections or reviews yet; hodlinator provided context pointing to a previous discussion. / Initial record. No substantive reviews or objections yet.",
   "evidence": [],
   "objections": [],
   "support": [],
   "participants": [
    {
     "login": "hodlinator",
     "stance": "neutral",
     "note": "noted origin of the defaulted result enum and suggested pinging ryanofsky",
     "association": "MEMBER",
     "comments": 1,
     "first": "2026-09-23",
     "last": "2026-09-23"
    }
   ],
   "derivation": "no substantive comment either way",
   "model_state": null,
   "corrections": [],
   "notes": "Initial read. No objections or reviews yet; hodlinator provided context pointing to a previous discussion. / Initial record. No substantive reviews or objections yet."
  },
  "dependencies": {
   "depends_on": [],
   "enables": []
  },
  "categories": [
   {
    "name": "kernel",
    "member": true,
    "evidence": "Touches src/kernel/bitcoinkernel.h and src/kernel/bitcoinkernel.cpp to add BLOCK_INCONCLUSIVE to the kernel C API result reporting.",
    "band": "P3",
    "reason_tag": "bug fix",
    "score": 0.35,
    "factors": {
     "bug_severity": 1,
     "leverage": 1,
     "performance": 0,
     "security_stability": 1,
     "user_value": 0
    },
    "rationale": "Extends the kernel C API to report the new inconclusive block validation state rather than exposing an ambiguous unset result. Error reporting at the kernel library boundary is directly improved, though the change is a straightforward extension of internal validation semantics."
   },
   {
    "name": "mempool",
    "member": false,
    "evidence": "Does not touch mempool policy, standardness, or acceptance rules.",
    "band": "Unranked",
    "reason_tag": "cleanup",
    "score": 0.0,
    "factors": {
     "bug_severity": 1,
     "leverage": 1,
     "performance": 0,
     "security_stability": 1,
     "user_value": 0
    },
    "rationale": "The PR has no impact on mempool operations or transaction policy."
   },
   {
    "name": "p2p",
    "member": false,
    "evidence": "Changes in src/net_processing.cpp are purely mechanical switch-case additions to handle the newly added enum value.",
    "band": "Unranked",
    "reason_tag": "cleanup",
    "score": 0.0,
    "factors": {
     "bug_severity": 1,
     "leverage": 1,
     "performance": 0,
     "security_stability": 1,
     "user_value": 0
    },
    "rationale": "Updates in net_processing mechanically follow the introduction of BlockValidationResult::BLOCK_INCONCLUSIVE and do not alter P2P network behavior or message processing logic."
   },
   {
    "name": "tests",
    "member": false,
    "evidence": "Modifications to test files only update test cases to supply required validation state parameters.",
    "band": "Unranked",
    "reason_tag": "cleanup",
    "score": 0.0,
    "factors": {
     "bug_severity": 1,
     "leverage": 1,
     "performance": 0,
     "security_stability": 1,
     "user_value": 0
    },
    "rationale": "Does not modify shared test framework or harness infrastructure; the test updates are routine adjustments following from the validation state changes."
   },
   {
    "name": "tools",
    "member": false,
    "evidence": "The change in src/bitcoin-chainstate.cpp is a mechanical update to handle the new result enum value.",
    "band": "Unranked",
    "reason_tag": "cleanup",
    "score": 0.0,
    "factors": {
     "bug_severity": 1,
     "leverage": 1,
     "performance": 0,
     "security_stability": 1,
     "user_value": 0
    },
    "rationale": "Does not introduce new features or fix standalone bugs in developer tools or contrib scripts."
   },
   {
    "name": "validation",
    "member": true,
    "evidence": "Labeled Validation; changes ValidationState invariant enforcement in src/consensus/validation.h and updates TestBlockValidity in src/validation.cpp.",
    "band": "P3",
    "reason_tag": "bug fix",
    "score": 0.4,
    "factors": {
     "bug_severity": 1,
     "leverage": 1,
     "performance": 0,
     "security_stability": 1,
     "user_value": 0
    },
    "rationale": "Enforces that invalid ValidationState instances cannot be left in an unset or empty state, preventing ambiguous results in callers like TestBlockValidity. This strengthens validation invariants and retires a hazard for downstream validation state consumers."
   }
  ],
  "confidence": "high",
  "uncertainties": [],
  "needs": []
 },
 "cost_usd": 0.0,
 "source": {
  "record": "2026-09-24T02:49:39+00:00",
  "code": "2026-09-24T02:53:23+00:00",
  "judgments": 6
 }
}