{
 "number": 32861,
 "input_hash": "b413aff1c7e9aba0",
 "model": "openrouter/google/gemini-3.8-flash",
 "batch": false,
 "created": "2026-09-17T17:11:40+00:00",
 "provider": "Google",
 "stop_reason": "end_turn",
 "usage": {
  "input_tokens": 17851,
  "cache_creation_input_tokens": 0,
  "cache_read_input_tokens": 0,
  "output_tokens": 2978
 },
 "cost_usd": 0.02455575,
 "error": null,
 "result": {
  "display": {
   "goal": [
    "Allow createwalletdescriptor to automatically detect an unused HD key from addhdkey in blank wallets",
    "Prevent adding duplicate HD private keys to the wallet",
    "Update the multisig tutorial to avoid creating unnecessary singlesig descriptor addresses"
   ],
   "reviewability": [
    "Ready to review",
    "Clean rebase on master with passing CI and resolved reviewer feedback"
   ],
   "agreement": [
    "Strong support from reviewers (adyshimony, jeanpablojp, w0xlt)",
    "Suggestions on duplicate checking and using GetHDPubKeys were incorporated by the author (adyshimony, jeanpablojp)"
   ],
   "categories": [
    {
     "name": "wallet",
     "why": [
      "P3 because it streamlines blank-wallet initialization by eliminating manual xpub lookups",
      "Includes a guard against importing duplicate HD keys via addhdkey"
     ]
    }
   ]
  },
  "summary": "Updates `createwalletdescriptor` to inspect `unused(KEY)` descriptors when no active descriptors exist, removing the need to manually pass the `hdkey` parameter. Also prevents `addhdkey` from importing duplicate HD keys and updates `doc/multisig-tutorial.md` to use blank wallets.",
  "problem": "Setting up a blank wallet with `addhdkey` previously forced users to call `gethdkeys` and copy-paste the xpub into `createwalletdescriptor`, making automated or scripted setups unnecessarily clunky.",
  "discussion": {
   "open_concerns": [],
   "resolved_concerns": [
    "rkrux questioned whether unused descriptors should be deleted once used; Sjors clarified this belongs to #29136 or a followup",
    "adyshimony noted missing duplicate check when calling addhdkey with an existing xprv; Sjors added a check and functional test",
    "jeanpablojp noted that GetHDPubKeys(HDKeyFilter::UnusedKey) should be reused rather than adding a separate helper; Sjors adopted it"
   ],
   "author_status": "active"
  },
  "reviewability": {
   "state": "Ready",
   "label": "Ready",
   "reason": "The code is rebased on master, CI is passing, and prior review suggestions have been implemented."
  },
  "agreement": {
   "state": "Strong",
   "summary": "Strong: Concept and Approach ACKs with all reviewer suggestions incorporated",
   "reason": "Multiple reviewers provided Concept and Approach ACKs. Suggestions regarding duplicate key checking and RPC help text were incorporated in subsequent pushes.",
   "evidence": [
    "adyshimony gave Concept ACK and Approach ACK, proposing a duplicate check for addhdkey which was implemented in commit 6d668f0ba2",
    "w0xlt provided Concept ACK",
    "jeanpablojp gave Concept ACK and suggested reusing GetHDPubKeys(HDKeyFilter::UnusedKey), which Sjors adopted"
   ]
  },
  "dependencies": {
   "depends_on": [],
   "enables": []
  },
  "categories": [
   {
    "name": "wallet",
    "member": true,
    "evidence": "Modifies wallet RPC createwalletdescriptor and CWallet::AddHDKey logic in src/wallet/",
    "band": "P3",
    "reason_tag": "new feature",
    "score": 0.35,
    "factors": {
     "security_stability": 1,
     "bug_severity": 0,
     "performance": 0,
     "user_value": 2,
     "leverage": 1
    },
    "rationale": "P3 because this is a worthwhile RPC workflow enhancement for descriptor wallets. As Sjors noted, 'Before this PR the last line would fail, requiring the user to call gethdkeys and copy-paste the xpub', smoothing blank wallet setup without changing consensus or critical wallet safety mechanisms."
   },
   {
    "name": "docs",
    "member": false,
    "evidence": "The changes to doc/multisig-tutorial.md and release notes follow directly from the wallet RPC workflow improvements.",
    "band": "Unranked",
    "reason_tag": "",
    "score": 0,
    "factors": {
     "security_stability": 0,
     "bug_severity": 0,
     "performance": 0,
     "user_value": 0,
     "leverage": 0
    },
    "rationale": "Not a primary docs change under the category rules; updates to tutorials following a code feature belong to the feature area."
   }
  ],
  "confidence": "high",
  "uncertainties": [],
  "needs": [],
  "card": "This PR improves the wallet RPC workflow by allowing createwalletdescriptor to auto-detect an unused HD key created by addhdkey when no active descriptors exist in the wallet. It also prevents addhdkey from importing duplicate HD keys and updates the multisig tutorial to follow this safer blank-wallet approach. The change is primarily a quality-of-life UX improvement for users and developers configuring descriptor wallets. Review is active and positive with Approach ACKs and suggestions already integrated."
 },
 "raw_text": null
}