{
 "number": 35918,
 "input_hash": "db1bf449d8f668a6",
 "model": "openrouter/google/gemini-3.8-flash",
 "batch": false,
 "created": "2026-09-17T16:21:35+00:00",
 "provider": "Google",
 "stop_reason": "end_turn",
 "usage": {
  "input_tokens": 19459,
  "cache_creation_input_tokens": 0,
  "cache_read_input_tokens": 0,
  "output_tokens": 3006
 },
 "cost_usd": 0.02586675,
 "error": null,
 "result": {
  "display": {
   "goal": [
    "Expose descriptor key expression parsing and origin inspection for external callers, especially the GUI multisig wizard."
   ],
   "reviewability": [
    "Needs rebase against master and an open question on whether to parameterize script context awaits an author response."
   ],
   "agreement": [
    "ACK with no blocking objections (w0xlt)",
    "Unanswered question on why script context is hardcoded to P2TR (uqlidi)"
   ],
   "categories": [
    {
     "name": "wallet",
     "why": [
      "P3 because it exposes a clean public interface for key expression validation to support wallet UI setup flows.",
      "It also fixes a minor parsing bug in musig expressions but does not change core wallet functionality."
     ]
    }
   ]
  },
  "summary": "This PR moves the abstract `PubkeyProvider` interface into `src/script/descriptor.h`, exposes a public `ParsePubkey()` overload to parse standalone key expressions, adds a `GetOriginInfo()` method to inspect key origin metadata, and tightens the `musig()` parser to reject invalid trailing characters.",
  "problem": "Higher-level callers like the GUI multisig setup wizard need a way to parse, validate, and inspect standalone key expressions without constructing a full output descriptor.",
  "discussion": {
   "open_concerns": [
    "uqlidi asked why the public `ParsePubkey` overload hardcodes `ParseScriptContext::P2TR` rather than taking the context as an argument."
   ],
   "resolved_concerns": [],
   "author_status": "silent since 2026-08-11"
  },
  "reviewability": {
   "state": "Paused",
   "label": "Waiting on author",
   "reason": "The PR has merge conflicts and an open question from uqlidi regarding whether `ParsePubkey` should parameterize the script context instead of hardcoding P2TR has been unanswered for 19 days."
  },
  "agreement": {
   "state": "Positive",
   "summary": "Positive: ACKed by w0xlt, with an open API design question from uqlidi.",
   "reason": "w0xlt provided an ACK on the latest commit. uqlidi raised a constructive API design question about supporting script contexts other than P2TR, but did not object to the concept.",
   "evidence": [
    "w0xlt: ACK 93600f9f03",
    "uqlidi: suggested parameterizing ParseScriptContext rather than hardcoding P2TR"
   ]
  },
  "dependencies": {
   "depends_on": [],
   "enables": [
    "#35645"
   ]
  },
  "categories": [
   {
    "name": "wallet",
    "member": true,
    "evidence": "Touches descriptor interfaces in src/script/descriptor.h and src/script/descriptor.cpp, which define descriptor parsing for the wallet.",
    "band": "P3",
    "reason_tag": "new feature",
    "score": 0.35,
    "factors": {
     "security_stability": 0,
     "bug_severity": 1,
     "performance": 0,
     "user_value": 1,
     "leverage": 2
    },
    "rationale": "P3 because it provides a useful utility to unblock GUI multisig setup flows (#35645) without affecting core wallet consensus or fund safety. The description explicitly frames this as useful for the GUI multisig wizard tracking issue (#35645) to validate pasted key expressions and inspect key origins. It also fixes a minor issue where trailing characters after musig() were improperly accepted."
   }
  ],
  "confidence": "high",
  "uncertainties": [],
  "needs": [],
  "card": "PR #35918 exposes the `PubkeyProvider` interface and adds a public `ParsePubkey()` function to allow standalone descriptor key expression parsing, validation, and origin inspection. This utility is needed by UI workflows such as the multisig wizard (#35645) to validate user-pasted key expressions before creating descriptors. It also fixes a minor parsing bug to reject unexpected trailing characters in `musig()` expressions. The PR has an ACK from w0xlt but is currently dirty and waiting on an author response to an API question from uqlidi."
 },
 "raw_text": null
}