{
 "number": 36005,
 "input_hash": "c1d8f2ee1c61fe5b",
 "model": "openrouter/google/gemini-3.8-flash",
 "batch": false,
 "created": "2026-09-17T15:56:36+00:00",
 "provider": "Google AI Studio",
 "stop_reason": "end_turn",
 "usage": {
  "input_tokens": 17061,
  "cache_creation_input_tokens": 0,
  "cache_read_input_tokens": 0,
  "output_tokens": 1828
 },
 "cost_usd": 0.01965075,
 "error": null,
 "result": {
  "display": {
   "goal": [
    "Warn users when multipath descriptor expansion reuses single-path key material across branches",
    "Surface descriptor warnings in getdescriptorinfo and deduplicate warnings across RPC responses"
   ],
   "reviewability": [
    "Needs rebase against current master"
   ],
   "agreement": [
    "Tested ACK validating warning generation and deduplication behavior (jeanpablojp)"
   ],
   "categories": [
    {
     "name": "rpc",
     "why": [
      "P3 because it exposes descriptor warnings in getdescriptorinfo and cleans up redundant warning arrays across RPC calls",
      "Improves RPC consistency and developer visibility into descriptor hazards without breaking compatibility"
     ]
    },
    {
     "name": "wallet",
     "why": [
      "P3 because it warns wallet operators against accidental address and key reuse across multipath branches",
      "Helps prevent privacy leaks when constructing descriptors with receive and change paths"
     ]
    }
   ]
  },
  "summary": "This PR adds warnings to descriptors when single-path key expressions or Taproot subscripts are cloned across multipath expansions, preventing accidental key reuse across branches. It exposes descriptor warnings via a new warnings field in `getdescriptorinfo` and deduplicates repeated messages in the shared `PushWarnings` RPC helper.",
  "problem": "When expanding multipath descriptors, single-path key expressions are silently cloned into each expanded branch, which can lead wallet users to reuse identical key material for both receive and change outputs without noticing.",
  "discussion": {
   "open_concerns": [],
   "resolved_concerns": [
    "Test coverage nit regarding checking multiple simultaneous descriptor warnings (jeanpablojp)"
   ],
   "author_status": "silent since 2026-08-18"
  },
  "reviewability": {
   "state": "Stale",
   "label": "Needs rebase",
   "reason": "The PR has merge conflicts with current master and requires a rebase."
  },
  "agreement": {
   "state": "Strong",
   "summary": "Strong: tested ACK with mutation verification from jeanpablojp; no objections raised",
   "reason": "jeanpablojp verified and tested the patch thoroughly by mutating each check and verifying test failures, raising only a minor test coverage nit.",
   "evidence": [
    "jeanpablojp left a tACK confirming test verification across descriptor parsing and RPC warning deduplication"
   ]
  },
  "dependencies": {
   "depends_on": [],
   "enables": []
  },
  "categories": [
   {
    "name": "docs",
    "member": false,
    "evidence": "Only includes release notes accompanying the code change.",
    "band": "Unranked",
    "reason_tag": "",
    "score": 0.0,
    "factors": {
     "security_stability": 0,
     "bug_severity": 0,
     "performance": 0,
     "user_value": 0,
     "leverage": 0
    },
    "rationale": "Release note additions for accompanying code changes are outside documentation category scope."
   },
   {
    "name": "rpc",
    "member": true,
    "evidence": "Adds a warnings field to getdescriptorinfo and modifies PushWarnings in src/rpc/util.cpp.",
    "band": "P3",
    "reason_tag": "new feature",
    "score": 0.35,
    "factors": {
     "security_stability": 0,
     "bug_severity": 1,
     "performance": 0,
     "user_value": 1,
     "leverage": 0
    },
    "rationale": "Extending getdescriptorinfo with a warnings array provides useful diagnostic parity with importdescriptors, and deduplicating PushWarnings avoids repetitive arrays in RPC outputs."
   },
   {
    "name": "wallet",
    "member": true,
    "evidence": "Touches descriptor validation and warnings surfaced by wallet descriptor imports in src/script/descriptor.cpp and test/functional/wallet_importdescriptors.py.",
    "band": "P3",
    "reason_tag": "user request",
    "score": 0.4,
    "factors": {
     "security_stability": 1,
     "bug_severity": 1,
     "performance": 0,
     "user_value": 2,
     "leverage": 0
    },
    "rationale": "Warns against a subtle descriptor misconfiguration where receive and change paths unintentionally share key material, mitigating privacy loss without rejecting valid descriptors."
   }
  ],
  "confidence": "high",
  "uncertainties": [],
  "needs": [],
  "card": "This PR warns when multipath descriptor expansion clones single-path key expressions across branches, preventing unintentional key reuse between distinct paths like external receive and internal change. It also surfaces descriptor warnings in getdescriptorinfo and deduplicates warning strings across RPC outputs via PushWarnings. The change has a tested ACK from jeanpablojp verifying the coverage of each warning path. Review is currently blocked on a rebase."
 },
 "raw_text": null
}