{
 "number": 35286,
 "input_hash": "42ed1cc5875f99fc",
 "model": "openrouter/google/gemini-3.8-flash",
 "batch": false,
 "created": "2026-09-17T21:30:56+00:00",
 "provider": "Google",
 "stop_reason": "end_turn",
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 "result": {
  "display": {
   "goal": [
    "Add a testsubmitpackage RPC to test-validate 1-parent-1-child packages",
    "Allows wallets and L2 nodes to test CPFP fee-bumping packages without mutating the mempool"
   ],
   "reviewability": [
    "Stale: needs rebase and author has paused work for over 90 days awaiting user buy-in"
   ],
   "agreement": [
    "Concept support from reviewers who see value for pre-flight submission testing (ismaelsadeeq, w0xlt)",
    "Unresolved nonblocking concern regarding whether external demand justifies the maintenance burden (dergoegge)",
    "Author paused iteration pending evidence of active user interest"
   ],
   "categories": [
    {
     "name": "rpc",
     "why": [
      "P3 because it adds an experimental dry-run RPC for package validation",
      "Helps wallets simulate 1p1c CPFP fee-bumps, but lacks wide external demand"
     ]
    },
    {
     "name": "mempool",
     "why": [
      "P3 because it exposes non-mutating dry-run evaluation for 1p1c package feerates and eviction",
      "Solves a specific wallet pre-flight validation gap without altering consensus or core policy"
     ]
    }
   ]
  },
  "summary": "Introduces an experimental `testsubmitpackage` RPC method that test-validates a 1-parent-1-child package against mempool policy (including RBF and sibling eviction) without modifying the mempool. It extends package acceptance machinery to support dry-run package evaluation specifically for 1p1c CPFP bundles.",
  "problem": "Wallets and L2 systems like Lightning nodes currently have no way to pre-flight validate package transactions using CPFP before broadcast because `testmempoolaccept` only validates transactions individually, rejecting low-fee parents.",
  "discussion": {
   "open_concerns": [
    "Whether downstream applications actually want and will use this RPC given restrictions like hard-rejecting self-sufficient parents, raising questions about ongoing maintenance burden (dergoegge)",
    "Several code organization suggestions in package acceptance, including helper deduplication and separating dry-run paths (ismaelsadeeq)"
   ],
   "resolved_concerns": [
    "Clarification of potential scope creep regarding out-of-mempool locktime validation (ajtowns settled with reference to issue #32142)"
   ],
   "author_status": "silent since 2026-06-17; previously noted pausing iteration until more buy-in from prospective users is demonstrated"
  },
  "reviewability": {
   "state": "Stale",
   "label": "Needs rebase",
   "reason": "The PR has merge conflicts with the current base branch, is marked as draft, and the author has been silent for more than 90 days after pausing work to assess external user demand."
  },
  "agreement": {
   "participants": [
    {
     "login": "ismaelsadeeq",
     "stance": "support",
     "note": "Concept ACK and detailed code review suggestions for deduplication and parameter naming"
    },
    {
     "login": "ajtowns",
     "stance": "question",
     "note": "Asked about potential scope expansion for out-of-mempool locktime validation"
    },
    {
     "login": "w0xlt",
     "stance": "support",
     "note": "Concept ACK"
    },
    {
     "login": "dergoegge",
     "stance": "objection",
     "note": "Questioned whether downstream demand justifies maintaining the RPC"
    }
   ],
   "objections": [
    {
     "reviewer": "dergoegge",
     "kind": "maintenance",
     "harm": "Ongoing maintenance burden of an experimental RPC if downstream projects do not actually use it",
     "blocking": false,
     "author_replied": false,
     "fix_pushed": false,
     "status": "open",
     "evidence": "2026-07-01: 'The code looks fine to me, but it'd be helpful for users that want this to say so explicitly here, to help us decide if we should maintain this.'",
     "resolution_evidence": "",
     "sources": [
      "dossier",
      "thread"
     ]
    }
   ],
   "support": [
    {
     "reviewer": "ismaelsadeeq",
     "reason": "Users test-run submissions to see if they will get through, making a 1p1c test RPC very useful",
     "substantive": true
    },
    {
     "reviewer": "w0xlt",
     "reason": "Concept ACK",
     "substantive": false
    }
   ],
   "state": "Mild",
   "summary": "Mild: Concept ACKs from ismaelsadeeq and w0xlt, but dergoegge questions maintenance burden without explicit user demand, awaiting author response",
   "reason": "Reviewers support the utility of dry-run package submission for wallets, but the author and dergoegge both noted low visible user demand, leaving a nonblocking maintenance question open and unanswered.",
   "evidence": [
    "2026-05-29: ismaelsadeeq gives Concept ACK citing user testing workflows",
    "2026-05-29: instagibbs notes lack of positive external feedback and pauses iteration to seek buy-in",
    "2026-07-01: dergoegge notes code looks fine but asks for explicit user interest to justify maintenance"
   ],
   "model_state": "Mild",
   "derivation": "nonblocking objection open (dergoegge)",
   "corrections": [],
   "thread_read": {
    "state": "Mild",
    "derived": "Mild",
    "objections": [
     {
      "reviewer": "dergoegge",
      "kind": "maintenance",
      "harm": "maintenance burden of an RPC if downstream users do not need or want it",
      "blocking": false,
      "author_replied": false,
      "fix_pushed": false,
      "status": "open",
      "evidence": "2026-07-01: \"it'd be helpful for users that want this to say so explicitly here, to help us decide if we should maintain this.\"",
      "resolution_evidence": ""
     }
    ],
    "support": [
     {
      "reviewer": "ismaelsadeeq",
      "reason": "users normally test run submissions to see whether they will get through, so having testsubmitpackage to test run 1p1c packages is very useful",
      "substantive": true
     },
     {
      "reviewer": "w0xlt",
      "reason": "Concept ACK",
      "substantive": false
     }
    ],
    "participants": [
     {
      "login": "ismaelsadeeq",
      "stance": "support",
      "note": "Concept ACK and reviewed code structure with refactoring suggestions"
     },
     {
      "login": "ajtowns",
      "stance": "question",
      "note": "asked whether testing transactions with relative locktimes spending out-of-mempool txs was feasible"
     },
     {
      "login": "w0xlt",
      "stance": "support",
      "note": "Concept ACK"
     },
     {
      "login": "dergoegge",
      "stance": "objection",
      "note": "code looks fine but questioned maintenance burden without explicit user demand"
     }
    ],
    "corrections": [],
    "summary": "Mild: dergoegge raises the maintenance burden without confirmed demand from users; ismaelsadeeq and w0xlt support.",
    "usage": {
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   },
   "first_read": {
    "state": "Mild",
    "model_state": "Mild",
    "objections": [
     {
      "reviewer": "dergoegge",
      "kind": "maintenance",
      "harm": "Ongoing maintenance burden of an experimental RPC if downstream projects do not actually use it",
      "blocking": false,
      "author_replied": false,
      "fix_pushed": false,
      "status": "open",
      "evidence": "2026-07-01: 'The code looks fine to me, but it'd be helpful for users that want this to say so explicitly here, to help us decide if we should maintain this.'",
      "resolution_evidence": ""
     }
    ],
    "support": [
     {
      "reviewer": "ismaelsadeeq",
      "reason": "Users test-run submissions to see if they will get through, making a 1p1c test RPC very useful",
      "substantive": true
     },
     {
      "reviewer": "w0xlt",
      "reason": "Concept ACK",
      "substantive": false
     }
    ]
   }
  },
  "dependencies": {
   "depends_on": [],
   "enables": [
    "Addresses part of issue #32160 for package acceptance test workflows"
   ]
  },
  "categories": [
   {
    "name": "mempool",
    "member": true,
    "evidence": "Modifies mempool acceptance logic in AcceptPackage and ProcessNewPackage to support dry-run package evaluation and aggregate package feerate accounting without mutating the mempool.",
    "band": "P3",
    "reason_tag": "new feature",
    "score": 0.35,
    "factors": {
     "security_stability": 0,
     "bug_severity": 0,
     "performance": 0,
     "user_value": 2,
     "leverage": 1
    },
    "rationale": "P3 because it provides a useful dry-run inspection mechanism for 1p1c package acceptance, but does not alter core mempool policy, consensus, or DoS rules. As instagibbs stated in the description, this is an experimental companion to submitpackage that partially addresses #32160."
   },
   {
    "name": "rpc",
    "member": true,
    "evidence": "Adds the new testsubmitpackage RPC method to src/rpc/mempool.cpp and registers it in the rawtransactions category.",
    "band": "P3",
    "reason_tag": "new feature",
    "score": 0.35,
    "factors": {
     "security_stability": 0,
     "bug_severity": 0,
     "performance": 0,
     "user_value": 2,
     "leverage": 1
    },
    "rationale": "P3 because it introduces a new RPC command serving external wallet developers who need pre-flight fee-bump evaluation. As dergoegge noted, 'it'd be helpful for users that want this to say so explicitly here, to help us decide if we should maintain this', meaning priority remains modest until concrete downstream demand is demonstrated."
   },
   {
    "name": "tests",
    "member": false,
    "evidence": "The test additions in test/functional/rpc_testsubmitpackage.py and fuzzing entry exist specifically to exercise the new RPC rather than improving shared test framework machinery.",
    "band": "Unranked",
    "reason_tag": "",
    "score": 0,
    "factors": {
     "security_stability": 0,
     "bug_severity": 0,
     "performance": 0,
     "user_value": 0,
     "leverage": 0
    },
    "rationale": "Not a member of tests because the test script strictly tests the new RPC functionality."
   },
   {
    "name": "validation",
    "member": false,
    "evidence": "Touches src/validation.cpp and src/validation.h strictly inside MemPoolAccept and ProcessNewPackage for mempool policy evaluation, without modifying consensus, block processing, or chainstate validation.",
    "band": "Unranked",
    "reason_tag": "",
    "score": 0,
    "factors": {
     "security_stability": 0,
     "bug_severity": 0,
     "performance": 0,
     "user_value": 0,
     "leverage": 0
    },
    "rationale": "Not a member of validation because mempool acceptance logic belongs to the mempool category even when residing in validation files."
   }
  ],
  "confidence": "high",
  "uncertainties": [],
  "needs": [],
  "card": "This PR adds an experimental testsubmitpackage RPC command to test-validate a 1-parent-1-child transaction bundle against full mempool policy without actually submitting it or mutating the mempool. It aims to solve the missing dry-run pre-flight check for wallets and Lightning nodes performing CPFP fee bumping. While concept-ACKed by two reviewers, the author and another maintainer noted uncertain downstream demand to justify maintaining the new RPC, and the author has paused work to seek external buy-in. Currently stale and in draft, requiring a rebase."
 },
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