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  "error": "Plan review decisions: invalid native question or selected option\n{\"toolUseId\":\"e23386c3-b6db-4526-9854-cf680d2f5884:toolu_01ViQYa4mtZTr14CMm8iJY8t\",\"questionIndex\":1}",
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      "toolUseId": "toolu_01ViQYa4mtZTr14CMm8iJY8t",
      "questions": [
        {
          "question": "D1 \u2014 Complexity gate: how many moving parts should the tenant-auth refactor introduce?\nProject/branch/task: main \u2014 reorganizing tenant-auth orchestration (PLAN.md) without changing product behavior.\nELI10: The plan swaps one auth flow for five new classes across 12 files. Every class is a new place a bug can hide and a new thing the on-call engineer must learn at 3am. The plan itself admits RequestPolicy holds no state and no policy of its own (PLAN.md:12-13), which means it is a function wearing a class costume. TokenStore is never described at all (PLAN.md:44-45), yet it sits next to AuthCache, which is already a cache facade.\nStakes if we pick wrong: Too many classes and the refactor is harder to review, test and roll back than the code it replaces; too few and we smear responsibilities back together and lose the boundaries the refactor exists to create.\nRecommendation: B because RequestPolicy is stateless by the plan's own description, so a pure function costs nothing and removes a class; TokenStore should be clarified, not merged blind.\nNote: options differ in kind, not coverage \u2014 no completeness score.\nPros / cons:\nA) Keep 5 classes / 12 files as proposed\n  \u2705 Matches the plan author's intent exactly; no re-planning of boundaries needed today\n  \u2705 Each responsibility (broker, mint, cache, store, policy) has an obvious home for future growth\n  \u274c RequestPolicy as a class with no state is ceremony; it inflates the diff and the mock surface in tests\n  \u274c TokenStore vs AuthCache overlap is unexplained, so reviewers cannot tell which one owns token lifetimes\nB) 4 units: RequestPolicy becomes a pure function module, keep the other 4 classes (recommended)\n  \u2705 Removes one class and its constructor/DI wiring while keeping the decision logic isolated and unit-testable\n  \u2705 A pure decideAccess(claims, ctx) function is trivially table-testable and cannot accidentally grow state\n  \u274c Leaves the TokenStore/AuthCache overlap unresolved; it needs a clarification finding in Section 1\nC) 3 classes: B plus fold TokenStore into AuthCache\n  \u2705 One cache-facing surface for both AuthBroker and SessionMint; fewer places that can disagree about a token\n  \u2705 Smallest diff and fewest files touched of the three arrangements\n  \u274c TokenStore is undescribed in the plan, so merging it is a guess that could collapse two genuinely different lifetimes\nNet: Trade a slightly larger diff (A) against removing ceremony that the plan's own text says is unnecessary (B), without gambling on an undescribed component (C).",
          "header": "Complexity",
          "options": [
            {
              "label": "Keep 5 classes / 12 files",
              "description": "Keep AuthBroker, TokenStore, SessionMint, AuthCache and RequestPolicy as five classes across 12 files exactly as PLAN.md:44-45 proposes. No structural change; the TokenStore/AuthCache overlap stays as a Section 1 finding."
            },
            {
              "label": "4 units: RequestPolicy as pure function (recommended)",
              "description": "Replace the RequestPolicy class with a pure function module (e.g. decideAccess(claims, ctx) \u2192 allow|deny) called from AuthBroker.validateAndDispatch() after validation and before dispatch. Keep AuthBroker, TokenStore, SessionMint and AuthCache as classes. TokenStore's role gets a clarification finding in Section 1."
            },
            {
              "label": "3 classes: also fold TokenStore into AuthCache",
              "description": "Option B plus merge TokenStore into AuthCache so there is one cache-facing surface. Smallest arrangement, but TokenStore is undescribed in PLAN.md, so this commits to a merge without knowing what TokenStore owns."
            }
          ]
        }
      ],
      "answered": true,
      "failed": false,
      "answers": {
        "D1 \u2014 Complexity gate: how many moving parts should the tenant-auth refactor introduce?\nProject/branch/task: main \u2014 reorganizing tenant-auth orchestration (PLAN.md) without changing product behavior.\nELI10: The plan swaps one auth flow for five new classes across 12 files. Every class is a new place a bug can hide and a new thing the on-call engineer must learn at 3am. The plan itself admits RequestPolicy holds no state and no policy of its own (PLAN.md:12-13), which means it is a function wearing a class costume. TokenStore is never described at all (PLAN.md:44-45), yet it sits next to AuthCache, which is already a cache facade.\nStakes if we pick wrong: Too many classes and the refactor is harder to review, test and roll back than the code it replaces; too few and we smear responsibilities back together and lose the boundaries the refactor exists to create.\nRecommendation: B because RequestPolicy is stateless by the plan's own description, so a pure function costs nothing and removes a class; TokenStore should be clarified, not merged blind.\nNote: options differ in kind, not coverage \u2014 no completeness score.\nPros / cons:\nA) Keep 5 classes / 12 files as proposed\n  \u2705 Matches the plan author's intent exactly; no re-planning of boundaries needed today\n  \u2705 Each responsibility (broker, mint, cache, store, policy) has an obvious home for future growth\n  \u274c RequestPolicy as a class with no state is ceremony; it inflates the diff and the mock surface in tests\n  \u274c TokenStore vs AuthCache overlap is unexplained, so reviewers cannot tell which one owns token lifetimes\nB) 4 units: RequestPolicy becomes a pure function module, keep the other 4 classes (recommended)\n  \u2705 Removes one class and its constructor/DI wiring while keeping the decision logic isolated and unit-testable\n  \u2705 A pure decideAccess(claims, ctx) function is trivially table-testable and cannot accidentally grow state\n  \u274c Leaves the TokenStore/AuthCache overlap unresolved; it needs a clarification finding in Section 1\nC) 3 classes: B plus fold TokenStore into AuthCache\n  \u2705 One cache-facing surface for both AuthBroker and SessionMint; fewer places that can disagree about a token\n  \u2705 Smallest diff and fewest files touched of the three arrangements\n  \u274c TokenStore is undescribed in the plan, so merging it is a guess that could collapse two genuinely different lifetimes\nNet: Trade a slightly larger diff (A) against removing ceremony that the plan's own text says is unnecessary (B), without gambling on an undescribed component (C).": "Keep 5 classes / 12 files"
      },
      "unansweredQuestionIndices": [],
      "answeredAt": "2026-09-17T02:23:56.183Z"
    },
    {
      "sessionId": "e23386c3-b6db-4526-9854-cf680d2f5884",
      "toolUseId": "toolu_01PxEJ3YAMfKa96ApMPe9rug",
      "questions": [
        {
          "question": "D2 \u2014 Should AuthCache be injected into the services or imported as a module-level global?\nProject/branch/task: main \u2014 tenant-auth refactor; AuthBroker and SessionMint both need the single AuthCache (PLAN.md:28-29).\nELI10: Right now the plan has one cache object that lives at the top of a module and every service grabs it by import. That is a hidden global: any test that touches AuthBroker also touches the same cache SessionMint uses, so tests leak state into each other, and in production nobody can tell from a constructor signature that a service writes to the shared auth cache. Passing the cache in through the constructor makes the dependency visible and lets each test build its own cache.\nStakes if we pick wrong: Flaky auth tests that pass alone and fail together, and a production incident where one service's cache write surprises the other with no import graph pointing at the culprit.\nRecommendation: A because constructor injection is the boring, proven fix for a shared mutable dependency and costs about ten lines at the composition root.\nNote: options differ in kind, not coverage \u2014 no completeness score.\nPros / cons:\nA) Constructor injection from one composition root (recommended)\n  \u2705 Dependency is explicit in each service's signature; the import graph shows who can write to the cache\n  \u2705 Each unit test constructs its own AuthCache, so no cross-test state leakage and no reset hooks\n  \u274c Needs a composition root (or wiring in the existing bootstrap) and threads the instance through call sites (human: ~half day / CC: ~10 min)\nB) Keep the singleton, add a factory and a test-reset hook\n  \u2705 Smaller diff than A; existing import sites stay as written\n  \u2705 Tests can reset shared state between cases via the hook\n  \u274c Test-only hooks in production modules are a smell, and the global coupling the finding describes remains\nC) Keep the module-level export as proposed\n  \u2705 Zero extra work; matches the plan verbatim\n  \u2705 Simplest possible import for both services\n  \u274c Shared mutable global in a multi-tenant auth path; tests share state and production writers are invisible\nNet: A costs a small amount of wiring to make the shared cache explicit and testable; B and C keep the hidden global that the finding is about.",
          "header": "Cache wiring",
          "options": [
            {
              "label": "Constructor injection (recommended)",
              "description": "Build one AuthCache at the composition root (the existing bootstrap or DI container) and pass it to `new AuthBroker(cache)` and `new SessionMint(cache)`. Remove the module-level export. Includes the unit tests that construct a fresh AuthCache per test and the wiring change at the bootstrap. R2 (mutation ownership) and R3 (cutover) stay pending."
            },
            {
              "label": "Singleton + factory + test reset hook",
              "description": "Keep the module-level export but add `createAuthCache()` and a `__resetForTests()` hook so tests can isolate state. Global coupling remains. R2 and R3 stay pending."
            },
            {
              "label": "Keep module-level export as proposed",
              "description": "No change to PLAN.md:28-29. Both services import the shared mutable instance. R2 and R3 stay pending."
            }
          ]
        }
      ],
      "answered": true,
      "failed": false,
      "answers": {
        "D2 \u2014 Should AuthCache be injected into the services or imported as a module-level global?\nProject/branch/task: main \u2014 tenant-auth refactor; AuthBroker and SessionMint both need the single AuthCache (PLAN.md:28-29).\nELI10: Right now the plan has one cache object that lives at the top of a module and every service grabs it by import. That is a hidden global: any test that touches AuthBroker also touches the same cache SessionMint uses, so tests leak state into each other, and in production nobody can tell from a constructor signature that a service writes to the shared auth cache. Passing the cache in through the constructor makes the dependency visible and lets each test build its own cache.\nStakes if we pick wrong: Flaky auth tests that pass alone and fail together, and a production incident where one service's cache write surprises the other with no import graph pointing at the culprit.\nRecommendation: A because constructor injection is the boring, proven fix for a shared mutable dependency and costs about ten lines at the composition root.\nNote: options differ in kind, not coverage \u2014 no completeness score.\nPros / cons:\nA) Constructor injection from one composition root (recommended)\n  \u2705 Dependency is explicit in each service's signature; the import graph shows who can write to the cache\n  \u2705 Each unit test constructs its own AuthCache, so no cross-test state leakage and no reset hooks\n  \u274c Needs a composition root (or wiring in the existing bootstrap) and threads the instance through call sites (human: ~half day / CC: ~10 min)\nB) Keep the singleton, add a factory and a test-reset hook\n  \u2705 Smaller diff than A; existing import sites stay as written\n  \u2705 Tests can reset shared state between cases via the hook\n  \u274c Test-only hooks in production modules are a smell, and the global coupling the finding describes remains\nC) Keep the module-level export as proposed\n  \u2705 Zero extra work; matches the plan verbatim\n  \u2705 Simplest possible import for both services\n  \u274c Shared mutable global in a multi-tenant auth path; tests share state and production writers are invisible\nNet: A costs a small amount of wiring to make the shared cache explicit and testable; B and C keep the hidden global that the finding is about.": "Constructor injection (recommended)"
      },
      "unansweredQuestionIndices": [],
      "answeredAt": "2026-09-17T02:26:01.556Z"
    },
    {
      "sessionId": "e23386c3-b6db-4526-9854-cf680d2f5884",
      "toolUseId": "toolu_017gWQKnsJQPLgkjUXrWX5v4",
      "questions": [
        {
          "question": "D3 \u2014 Which service is allowed to write to AuthCache, and what stops a stale write landing after an invalidation?\nProject/branch/task: main \u2014 tenant-auth refactor; one backing cache, two writers, no serialization (PLAN.md:19, :29).\nELI10: Two services can both write into the same auth cache and nothing orders their writes. Picture a tenant getting suspended: the invalidation hook wipes their cache entries, but SessionMint was already halfway through minting a session and writes a fresh \"allowed\" entry a millisecond later. The suspended tenant now has a valid cache entry until it expires. Naming one writer and rejecting writes whose policy version is out of date closes that window.\nStakes if we pick wrong: A suspended or logged-out tenant keeps access for the remaining cache TTL, which is a security bug that only shows up under timing you cannot reproduce on a laptop.\nRecommendation: A because the compare-and-set uses the policy-version field the adapter already keys on, and the interleaving test is the only way to prove the race is closed.\nCompleteness: A=10/10, B=6/10, C=2/10\nPros / cons:\nA) Single writer + compare-and-set on policy version + interleaving test (recommended)\n  \u2705 Closes the invalidate-then-stale-write window using a key field the adapter already stores\n  \u2705 AuthBroker gets a read-only interface, so the compiler proves it cannot write; the race becomes a typed impossibility (human: ~1.5 days / CC: ~25 min)\n  \u274c Adds a facade-level CAS and one deliberately interleaved async test that is fiddly to write well\nB) Single writer via narrow interfaces, race documented as known\n  \u2705 Removes one of the two writers with a small typing change\n  \u2705 Clear ownership makes future debugging simpler\n  \u274c The invalidation race stays open; a suspended tenant can still hold a cached allow until TTL\nC) Both services mutate freely as proposed\n  \u2705 Zero extra work; matches PLAN.md:29 verbatim\n  \u2705 No new interfaces to learn\n  \u274c Two unordered writers on a multi-tenant auth cache with a known unclosed race\nNet: A spends a day of human time (minutes of CC time) to turn a timing-dependent security hole into a compile-time guarantee plus a test; B halves the writers but leaves the hole; C leaves both.",
          "header": "Cache writers",
          "options": [
            {
              "label": "Single writer + CAS + test (recommended)",
              "description": "AuthCache exposes `AuthCacheReader` (get) consumed by AuthBroker and `AuthCacheWriter` (get/set/invalidate) consumed by SessionMint. Every `set` is a compare-and-set against the entry's policy version so a write after an invalidation is rejected and surfaced as a typed result. Includes one interleaving test: invalidate tenant mid-mint, assert no entry survives. R3 stays pending."
            },
            {
              "label": "Single writer via narrow interfaces only",
              "description": "Same reader/writer interfaces as A, no compare-and-set. The invalidate-then-write race is recorded in the plan as a known limitation. R3 stays pending."
            },
            {
              "label": "Both services mutate freely",
              "description": "No change to PLAN.md:29. Both services hold the full mutable AuthCache API. R3 stays pending."
            }
          ]
        }
      ],
      "answered": true,
      "failed": false,
      "answers": {
        "D3 \u2014 Which service is allowed to write to AuthCache, and what stops a stale write landing after an invalidation?\nProject/branch/task: main \u2014 tenant-auth refactor; one backing cache, two writers, no serialization (PLAN.md:19, :29).\nELI10: Two services can both write into the same auth cache and nothing orders their writes. Picture a tenant getting suspended: the invalidation hook wipes their cache entries, but SessionMint was already halfway through minting a session and writes a fresh \"allowed\" entry a millisecond later. The suspended tenant now has a valid cache entry until it expires. Naming one writer and rejecting writes whose policy version is out of date closes that window.\nStakes if we pick wrong: A suspended or logged-out tenant keeps access for the remaining cache TTL, which is a security bug that only shows up under timing you cannot reproduce on a laptop.\nRecommendation: A because the compare-and-set uses the policy-version field the adapter already keys on, and the interleaving test is the only way to prove the race is closed.\nCompleteness: A=10/10, B=6/10, C=2/10\nPros / cons:\nA) Single writer + compare-and-set on policy version + interleaving test (recommended)\n  \u2705 Closes the invalidate-then-stale-write window using a key field the adapter already stores\n  \u2705 AuthBroker gets a read-only interface, so the compiler proves it cannot write; the race becomes a typed impossibility (human: ~1.5 days / CC: ~25 min)\n  \u274c Adds a facade-level CAS and one deliberately interleaved async test that is fiddly to write well\nB) Single writer via narrow interfaces, race documented as known\n  \u2705 Removes one of the two writers with a small typing change\n  \u2705 Clear ownership makes future debugging simpler\n  \u274c The invalidation race stays open; a suspended tenant can still hold a cached allow until TTL\nC) Both services mutate freely as proposed\n  \u2705 Zero extra work; matches PLAN.md:29 verbatim\n  \u2705 No new interfaces to learn\n  \u274c Two unordered writers on a multi-tenant auth cache with a known unclosed race\nNet: A spends a day of human time (minutes of CC time) to turn a timing-dependent security hole into a compile-time guarantee plus a test; B halves the writers but leaves the hole; C leaves both.": "Single writer + CAS + test (recommended)"
      },
      "unansweredQuestionIndices": [],
      "answeredAt": "2026-09-17T02:27:19.301Z"
    },
    {
      "sessionId": "e23386c3-b6db-4526-9854-cf680d2f5884",
      "toolUseId": "toolu_01JqZ9U7qFCWsCQXx3h4USN7",
      "questions": [
        {
          "question": "D4 \u2014 Replace legacyAuthFlow() all at once, behind a flag, or after a shadow-compare phase?\nProject/branch/task: main \u2014 tenant-auth refactor; the old orchestration is rewritten into AuthBroker/SessionMint (PLAN.md:36-37).\nELI10: The plan deletes the old auth flow and turns on the new one in the same change. If the new flow denies a request the old one allowed (or worse, allows one it should deny), every tenant sees it at once and the only undo is a revert deploy. Keeping the old function alive behind a flag means you can turn the new path on for one tenant, watch, and flip back in seconds. Running both side by side first and logging where they disagree tells you before any user is affected.\nStakes if we pick wrong: A behavior difference in the auth path becomes a full-fleet incident with a slow rollback instead of a one-tenant blip with a flag flip.\nRecommendation: B because the plan's whole promise is \"no behavior change\" and shadow-compare is the only mechanism that measures that promise in production before enforcing it.\nCompleteness: A=7/10, B=10/10, C=3/10\nPros / cons:\nA) Flag-gated cutover, legacy retained until bake ends\n  \u2705 Rollback is a flag flip, not a deploy; blast radius is one tenant or one percent at a time\n  \u2705 Legacy code keeps running for the untargeted tenants, so the refactor cannot break everyone at once (human: ~1 day / CC: ~15 min)\n  \u274c Divergences are only discovered once real traffic hits the new path; the first affected tenant is the detector\nB) Shadow-compare phase, then flag-gated cutover (recommended)\n  \u2705 Allow/deny divergence is measured on real traffic with zero user impact before the flag flips\n  \u2705 Produces a concrete \"N requests, 0 divergences\" number that proves the no-behavior-change claim (human: ~2 days / CC: ~30 min)\n  \u274c Doubles IDP load during the shadow window and needs a divergence log plus a kill switch for the shadow itself\nC) Big-bang rewrite as proposed\n  \u2705 Smallest diff and no flag plumbing to clean up later\n  \u2705 Legacy code is gone immediately, so no dual-path maintenance\n  \u274c No production rollback short of a revert deploy; every tenant is the canary\nNet: C is fastest and riskiest; A buys cheap rollback; B additionally buys proof that the refactor preserved behavior, at the cost of a temporary second code path and extra IDP load.",
          "header": "Cutover",
          "options": [
            {
              "label": "Shadow-compare, then flag (recommended)",
              "description": "Option A plus a shadow phase: both paths run on live traffic, only legacy's result is enforced, and every allow/deny divergence is logged with tenant and reason. Includes a shadow kill switch and a divergence-count metric. Flag flips only after a stated bake with zero unexplained divergences. Regression test contract stays pending for Section 3."
            },
            {
              "label": "Flag-gated cutover",
              "description": "Keep `legacyAuthFlow()` intact. Add a per-tenant/percentage flag routing requests to `AuthBroker.validateAndDispatch()`. Bake, then delete legacy in a follow-up change. Includes the flag's own unit test (both routes) and the follow-up removal task. Regression test contract stays pending for Section 3."
            },
            {
              "label": "Big-bang rewrite",
              "description": "No change to PLAN.md:36-37. legacyAuthFlow() is replaced in one change. Regression test contract stays pending for Section 3."
            }
          ]
        }
      ],
      "answered": true,
      "failed": false,
      "answers": {
        "D4 \u2014 Replace legacyAuthFlow() all at once, behind a flag, or after a shadow-compare phase?\nProject/branch/task: main \u2014 tenant-auth refactor; the old orchestration is rewritten into AuthBroker/SessionMint (PLAN.md:36-37).\nELI10: The plan deletes the old auth flow and turns on the new one in the same change. If the new flow denies a request the old one allowed (or worse, allows one it should deny), every tenant sees it at once and the only undo is a revert deploy. Keeping the old function alive behind a flag means you can turn the new path on for one tenant, watch, and flip back in seconds. Running both side by side first and logging where they disagree tells you before any user is affected.\nStakes if we pick wrong: A behavior difference in the auth path becomes a full-fleet incident with a slow rollback instead of a one-tenant blip with a flag flip.\nRecommendation: B because the plan's whole promise is \"no behavior change\" and shadow-compare is the only mechanism that measures that promise in production before enforcing it.\nCompleteness: A=7/10, B=10/10, C=3/10\nPros / cons:\nA) Flag-gated cutover, legacy retained until bake ends\n  \u2705 Rollback is a flag flip, not a deploy; blast radius is one tenant or one percent at a time\n  \u2705 Legacy code keeps running for the untargeted tenants, so the refactor cannot break everyone at once (human: ~1 day / CC: ~15 min)\n  \u274c Divergences are only discovered once real traffic hits the new path; the first affected tenant is the detector\nB) Shadow-compare phase, then flag-gated cutover (recommended)\n  \u2705 Allow/deny divergence is measured on real traffic with zero user impact before the flag flips\n  \u2705 Produces a concrete \"N requests, 0 divergences\" number that proves the no-behavior-change claim (human: ~2 days / CC: ~30 min)\n  \u274c Doubles IDP load during the shadow window and needs a divergence log plus a kill switch for the shadow itself\nC) Big-bang rewrite as proposed\n  \u2705 Smallest diff and no flag plumbing to clean up later\n  \u2705 Legacy code is gone immediately, so no dual-path maintenance\n  \u274c No production rollback short of a revert deploy; every tenant is the canary\nNet: C is fastest and riskiest; A buys cheap rollback; B additionally buys proof that the refactor preserved behavior, at the cost of a temporary second code path and extra IDP load.": "Shadow-compare, then flag (recommended)"
      },
      "unansweredQuestionIndices": [],
      "answeredAt": "2026-09-17T02:28:39.114Z"
    },
    {
      "sessionId": "e23386c3-b6db-4526-9854-cf680d2f5884",
      "toolUseId": "toolu_01Sa7Txd96ozstCWL4npdeE2",
      "questions": [
        {
          "question": "D5 \u2014 What does TokenStore own, and who decides that before code is written?\nProject/branch/task: main \u2014 tenant-auth refactor; TokenStore is one of five new classes but has no description (PLAN.md:44-45).\nELI10: Five new classes are named, and one of them, TokenStore, is never explained. It sits next to AuthCache, which already caches auth results. If two classes both think they own \"the token\", one will cache something the other invalidates, and the bug will look like the race we just closed in D3. Someone needs to write down what TokenStore holds and who calls it before anyone builds it.\nStakes if we pick wrong: Two components with overlapping ownership of token state, or a class that ships as an empty shell because nobody knew what to put in it.\nRecommendation: B because this reviewer cannot see the code and should not invent TokenStore's contract; the author can write it in ten minutes and it gates only TokenStore, not the rest of the plan.\nNote: options differ in kind, not coverage \u2014 no completeness score.\nPros / cons:\nA) Adopt the reviewer's proposed contract now\n  \u2705 Unblocks implementation immediately with a clear secrets-vs-decisions split between TokenStore and AuthCache\n  \u2705 Constructor injection and a named consumer keep it consistent with the D2 wiring decision\n  \u274c The contract is a guess from outside the codebase; if TokenStore was meant to be something else, this bakes in the wrong boundary\nB) Author defines TokenStore in the plan before any TokenStore code (recommended)\n  \u2705 The person who knows why TokenStore exists writes its one-paragraph contract; ten minutes of human time, no CC time\n  \u2705 Only TokenStore work waits; AuthBroker, SessionMint, AuthCache and the cutover proceed\n  \u274c TokenStore tasks cannot be estimated or parallelized until the paragraph lands\nC) Proceed undefined\n  \u2705 No planning work now; the implementer decides in context\n  \u2705 Fastest path to first commit\n  \u274c Boundaries decided under implementation pressure are how overlapping ownership bugs get in\nNet: A trades correctness of the boundary for speed; B costs ten author minutes and blocks only TokenStore; C defers the decision to the worst possible moment.",
          "header": "TokenStore",
          "options": [
            {
              "label": "Author defines it first (recommended)",
              "description": "Bounded investigation: before any TokenStore code, the plan author adds a paragraph to PLAN.md stating TokenStore's responsibility, consumers, storage and its boundary with AuthCache. TokenStore implementation and its tests stay pending until then; all other approved work proceeds."
            },
            {
              "label": "Adopt reviewer's contract",
              "description": "Add to the plan: TokenStore owns token material (minted session tokens, any refresh material) and is the only component that holds secrets; AuthCache holds validated claims and decisions only; TokenStore is constructor-injected; SessionMint is its named consumer. Includes TokenStore unit tests for its store/fetch/revoke paths."
            },
            {
              "label": "Proceed undefined",
              "description": "No change to the plan. TokenStore's role is decided during implementation."
            }
          ]
        }
      ],
      "answered": true,
      "failed": false,
      "answers": {
        "D5 \u2014 What does TokenStore own, and who decides that before code is written?\nProject/branch/task: main \u2014 tenant-auth refactor; TokenStore is one of five new classes but has no description (PLAN.md:44-45).\nELI10: Five new classes are named, and one of them, TokenStore, is never explained. It sits next to AuthCache, which already caches auth results. If two classes both think they own \"the token\", one will cache something the other invalidates, and the bug will look like the race we just closed in D3. Someone needs to write down what TokenStore holds and who calls it before anyone builds it.\nStakes if we pick wrong: Two components with overlapping ownership of token state, or a class that ships as an empty shell because nobody knew what to put in it.\nRecommendation: B because this reviewer cannot see the code and should not invent TokenStore's contract; the author can write it in ten minutes and it gates only TokenStore, not the rest of the plan.\nNote: options differ in kind, not coverage \u2014 no completeness score.\nPros / cons:\nA) Adopt the reviewer's proposed contract now\n  \u2705 Unblocks implementation immediately with a clear secrets-vs-decisions split between TokenStore and AuthCache\n  \u2705 Constructor injection and a named consumer keep it consistent with the D2 wiring decision\n  \u274c The contract is a guess from outside the codebase; if TokenStore was meant to be something else, this bakes in the wrong boundary\nB) Author defines TokenStore in the plan before any TokenStore code (recommended)\n  \u2705 The person who knows why TokenStore exists writes its one-paragraph contract; ten minutes of human time, no CC time\n  \u2705 Only TokenStore work waits; AuthBroker, SessionMint, AuthCache and the cutover proceed\n  \u274c TokenStore tasks cannot be estimated or parallelized until the paragraph lands\nC) Proceed undefined\n  \u2705 No planning work now; the implementer decides in context\n  \u2705 Fastest path to first commit\n  \u274c Boundaries decided under implementation pressure are how overlapping ownership bugs get in\nNet: A trades correctness of the boundary for speed; B costs ten author minutes and blocks only TokenStore; C defers the decision to the worst possible moment.": "Author defines it first (recommended)"
      },
      "unansweredQuestionIndices": [],
      "answeredAt": "2026-09-17T02:29:59.000Z"
    },
    {
      "sessionId": "e23386c3-b6db-4526-9854-cf680d2f5884",
      "toolUseId": "toolu_01U5K1YKiZ7RSmjTNiZazDSN",
      "questions": [
        {
          "question": "D6 \u2014 How should validateAndDispatch() handle errors: a flat typed pipeline, or the same nesting without swallowing?\nProject/branch/task: main \u2014 tenant-auth refactor; the broker's core function is 60 lines with three nested try/catch blocks (PLAN.md:32-33).\nELI10: Three try/catch blocks nested inside each other, each quietly eating a different kind of error, means an IDP timeout or a malformed token can vanish without a log line. In an auth check, \"vanish\" means either the request sails through or the user is denied with nothing in the logs to explain why. Splitting the function into three small steps that each return either a value or a named error makes every failure visible, deniable and testable.\nStakes if we pick wrong: A fail-open auth check under IDP errors, or an un-debuggable wall of denials during an incident.\nRecommendation: A because a flat Result pipeline removes the DRY problem (three near-identical catch blocks), makes fail-closed the default, and each step becomes a 5-line unit test.\nCompleteness: A=10/10, B=6/10, C=1/10\nPros / cons:\nA) Flat Result pipeline, fail-closed, one test per error class (recommended)\n  \u2705 Every error class maps to one explicit deny reason and log line in a single table; nothing is swallowed\n  \u2705 Three ~10-line pure-ish steps replace one 60-line function; each is table-testable in isolation (human: ~1 day / CC: ~15 min)\n  \u274c Introduces a `Result` type convention if the codebase does not already have one\nB) Keep nesting, log and deny in each catch\n  \u2705 Smallest change to the existing shape; no new type convention\n  \u2705 Stops the silent swallow: every error is logged and produces a deny\n  \u274c Three catch blocks still duplicate the log-and-deny logic, and 60 lines of nesting stays hard to read and test\nC) Keep as proposed\n  \u2705 Zero work now\n  \u2705 Behavior identical to the current draft\n  \u274c Swallowed errors in an auth path are either fail-open or silent failure; both are incidents waiting to happen\nNet: A pays a small type-convention cost to get explicit fail-closed behavior and DRY error mapping; B fixes the swallow but keeps the duplication; C keeps a security-relevant silent failure.",
          "header": "Error handling",
          "options": [
            {
              "label": "Flat Result pipeline (recommended)",
              "description": "Split `validateAndDispatch()` into `validate(req) \u2192 Result<Claims, AuthError>`, `decide(claims, ctx) \u2192 allow|deny` (RequestPolicy), and `dispatch(...)`. One `AuthError \u2192 {denyReason, logLevel}` map. Unknown throws also map to deny. Function body ~15 lines. Includes one unit test per error class asserting deny reason and log output, plus one for an unknown throw."
            },
            {
              "label": "Keep nesting, no swallowing",
              "description": "Keep the three nested try/catch blocks; each catch logs the error class and returns an explicit deny. Includes one unit test per error class asserting the deny and the log line."
            },
            {
              "label": "Keep as proposed",
              "description": "No change to PLAN.md:32-33."
            }
          ]
        }
      ],
      "answered": true,
      "failed": false,
      "answers": {
        "D6 \u2014 How should validateAndDispatch() handle errors: a flat typed pipeline, or the same nesting without swallowing?\nProject/branch/task: main \u2014 tenant-auth refactor; the broker's core function is 60 lines with three nested try/catch blocks (PLAN.md:32-33).\nELI10: Three try/catch blocks nested inside each other, each quietly eating a different kind of error, means an IDP timeout or a malformed token can vanish without a log line. In an auth check, \"vanish\" means either the request sails through or the user is denied with nothing in the logs to explain why. Splitting the function into three small steps that each return either a value or a named error makes every failure visible, deniable and testable.\nStakes if we pick wrong: A fail-open auth check under IDP errors, or an un-debuggable wall of denials during an incident.\nRecommendation: A because a flat Result pipeline removes the DRY problem (three near-identical catch blocks), makes fail-closed the default, and each step becomes a 5-line unit test.\nCompleteness: A=10/10, B=6/10, C=1/10\nPros / cons:\nA) Flat Result pipeline, fail-closed, one test per error class (recommended)\n  \u2705 Every error class maps to one explicit deny reason and log line in a single table; nothing is swallowed\n  \u2705 Three ~10-line pure-ish steps replace one 60-line function; each is table-testable in isolation (human: ~1 day / CC: ~15 min)\n  \u274c Introduces a `Result` type convention if the codebase does not already have one\nB) Keep nesting, log and deny in each catch\n  \u2705 Smallest change to the existing shape; no new type convention\n  \u2705 Stops the silent swallow: every error is logged and produces a deny\n  \u274c Three catch blocks still duplicate the log-and-deny logic, and 60 lines of nesting stays hard to read and test\nC) Keep as proposed\n  \u2705 Zero work now\n  \u2705 Behavior identical to the current draft\n  \u274c Swallowed errors in an auth path are either fail-open or silent failure; both are incidents waiting to happen\nNet: A pays a small type-convention cost to get explicit fail-closed behavior and DRY error mapping; B fixes the swallow but keeps the duplication; C keeps a security-relevant silent failure.": "Flat Result pipeline (recommended)"
      },
      "unansweredQuestionIndices": [],
      "answeredAt": "2026-09-17T02:31:48.627Z"
    },
    {
      "sessionId": "e23386c3-b6db-4526-9854-cf680d2f5884",
      "toolUseId": "toolu_015TFLK36DYayVQFottUoxPg",
      "questions": [
        {
          "question": "D7 \u2014 How do we prove the rewritten auth flow behaves exactly like legacyAuthFlow()?\nProject/branch/task: main \u2014 tenant-auth refactor; legacyAuthFlow() is rewritten with no regression test planned (PLAN.md:36-37).\nELI10: The plan promises the new code does exactly what the old code did, then writes no test that checks it. The only way to know is to record what the old code does for every kind of request first (allow, deny, expired token, revoked token, IDP failing halfway) and then make the new code pass the same recordings. The production shadow run we approved in D4 catches differences on live traffic, but it runs late, on whatever traffic happens to arrive, and cannot be re-run in CI.\nStakes if we pick wrong: A behavior change in the auth path is discovered by a tenant instead of by a failing test, and there is no fixture to reproduce it.\nRecommendation: A because capturing the legacy behavior before touching it is the one moment this evidence is cheap, and the same fixture table doubles as the new components' integration suite.\nCompleteness: A=10/10, B=7/10, C=4/10\nPros / cons:\nA) Characterization suite from legacy, run against both paths (recommended)\n  \u2705 Every legacy branch becomes a fixture row; the new path must match outcome, cache side effects and error class, not just allow/deny\n  \u2705 Runs in CI on every commit and doubles as the integration suite the plan already promised for the new components (human: ~2 days / CC: ~30 min)\n  \u274c Requires reading the legacy source to enumerate branches before the refactor starts; sequencing constraint on the first task\nB) Golden snapshots for a sample of fixtures\n  \u2705 Fast to produce; covers the obvious happy/deny/expired/revoked/IDP-failure cases\n  \u2705 Still runs offline in CI, unlike shadow-compare alone\n  \u274c Sampled, outcome-only: cache side-effect regressions and rare branches slip through\nC) Rely on production shadow-compare only\n  \u2705 No offline test-writing effort; D4 = B already builds the comparison\n  \u2705 Compares against real traffic distributions rather than invented fixtures\n  \u274c Late, unrepeatable, blind to branches real traffic does not hit during the bake, and useless once legacy is deleted\nNet: A front-loads two days of fixture capture to get a permanent, CI-run proof of the no-behavior-change promise; B gets most of the value for common cases; C leaves offline regression coverage at zero.",
          "header": "Regression",
          "options": [
            {
              "label": "Characterization suite, both paths (recommended)",
              "description": "Before any refactor commit: enumerate every branch of `legacyAuthFlow()` from source and capture a fixture table (request, tenant state, IDP responses) \u2192 (allow/deny, cache writes/invalidations, error class). Run the table against legacy (must pass, proving the fixtures) and against `AuthBroker.validateAndDispatch()` (must pass, proving equivalence). Zero unexplained diffs is the acceptance assertion. Sequenced as the first implementation task."
            },
            {
              "label": "Golden snapshots, sampled fixtures",
              "description": "Capture legacy outputs (allow/deny only) for happy, policy-deny, expired, revoked and IDP-failure fixtures; assert the new path produces identical snapshots. Cache side effects not asserted."
            },
            {
              "label": "Shadow-compare only",
              "description": "No offline regression test. D4 = B's production divergence count over the bake window is the sole regression evidence."
            }
          ]
        }
      ],
      "answered": true,
      "failed": false,
      "answers": {
        "D7 \u2014 How do we prove the rewritten auth flow behaves exactly like legacyAuthFlow()?\nProject/branch/task: main \u2014 tenant-auth refactor; legacyAuthFlow() is rewritten with no regression test planned (PLAN.md:36-37).\nELI10: The plan promises the new code does exactly what the old code did, then writes no test that checks it. The only way to know is to record what the old code does for every kind of request first (allow, deny, expired token, revoked token, IDP failing halfway) and then make the new code pass the same recordings. The production shadow run we approved in D4 catches differences on live traffic, but it runs late, on whatever traffic happens to arrive, and cannot be re-run in CI.\nStakes if we pick wrong: A behavior change in the auth path is discovered by a tenant instead of by a failing test, and there is no fixture to reproduce it.\nRecommendation: A because capturing the legacy behavior before touching it is the one moment this evidence is cheap, and the same fixture table doubles as the new components' integration suite.\nCompleteness: A=10/10, B=7/10, C=4/10\nPros / cons:\nA) Characterization suite from legacy, run against both paths (recommended)\n  \u2705 Every legacy branch becomes a fixture row; the new path must match outcome, cache side effects and error class, not just allow/deny\n  \u2705 Runs in CI on every commit and doubles as the integration suite the plan already promised for the new components (human: ~2 days / CC: ~30 min)\n  \u274c Requires reading the legacy source to enumerate branches before the refactor starts; sequencing constraint on the first task\nB) Golden snapshots for a sample of fixtures\n  \u2705 Fast to produce; covers the obvious happy/deny/expired/revoked/IDP-failure cases\n  \u2705 Still runs offline in CI, unlike shadow-compare alone\n  \u274c Sampled, outcome-only: cache side-effect regressions and rare branches slip through\nC) Rely on production shadow-compare only\n  \u2705 No offline test-writing effort; D4 = B already builds the comparison\n  \u2705 Compares against real traffic distributions rather than invented fixtures\n  \u274c Late, unrepeatable, blind to branches real traffic does not hit during the bake, and useless once legacy is deleted\nNet: A front-loads two days of fixture capture to get a permanent, CI-run proof of the no-behavior-change promise; B gets most of the value for common cases; C leaves offline regression coverage at zero.": "Characterization suite, both paths (recommended)"
      },
      "unansweredQuestionIndices": [],
      "answeredAt": "2026-09-17T02:34:03.944Z"
    },
    {
      "sessionId": "e23386c3-b6db-4526-9854-cf680d2f5884",
      "toolUseId": "toolu_01JqvQFfXBK9USdUEdJixnVe",
      "questions": [
        {
          "question": "D8 \u2014 Parallelize the five IDP calls now with timeouts and abort, defer until after the shadow bake, or use bare Promise.all?\nProject/branch/task: main \u2014 tenant-auth refactor; token validation makes 5 sequential IDP round trips (PLAN.md:40-41).\nELI10: Five network calls one after another means every login waits for five round trips when it could wait for one. Firing them together is the obvious win, but \"together\" changes what happens when one fails: with sequential calls the rest never fire; with a bare Promise.all the other four keep running with nobody listening, and the error you see depends on which call lost the race. Adding a shared abort and a fixed error order gives you the speed without the nondeterminism.\nStakes if we pick wrong: Either logins stay 5\u00d7 slower than they need to be, or the regression suite we just approved flakes on multi-failure fixtures and IDP sees orphaned requests during outages.\nRecommendation: A because the speedup is real, the abort/ordering rules cost about 15 lines, and the D7 fixtures already assert the error class so determinism is required anyway.\nCompleteness: A=10/10, B=7/10, C=4/10\nPros / cons:\nA) Promise.all + AbortController + per-call timeout + declared-order error (recommended)\n  \u2705 Validation latency drops from 5 round trips to 1; p50/p95 measured before and after so the win is a number, not a claim\n  \u2705 First failure aborts the siblings and surfaces a deterministic error class, so the characterization fixtures stay green (human: ~half day / CC: ~10 min)\n  \u274c Slightly more code than bare Promise.all and depends on the IDP client honoring an abort signal\nB) Keep sequential now, parallelize after the shadow bake\n  \u2705 Strictly behavior-preserving, which is the plan's stated goal; the shadow-compare measures only the refactor\n  \u2705 Zero risk of the parallel change masking or being blamed for a divergence\n  \u274c Leaves the 5\u00d7 latency on the table for the whole bake window and adds a second rollout later\nC) Bare Promise.all as proposed\n  \u2705 One-line change, exactly as the plan says\n  \u2705 Same latency win as A on the happy path\n  \u274c Orphaned in-flight calls on failure and a nondeterministic surfaced error; multi-failure fixtures will flake\nNet: A takes the latency win now and pays 15 lines for determinism; B keeps the refactor pure at the cost of a second rollout; C takes the win and inherits flaky failure semantics.",
          "header": "IDP calls",
          "options": [
            {
              "label": "Parallel with abort + ordering (recommended)",
              "description": "Issue the 5 IDP calls via `Promise.all` sharing one `AbortController`; per-call timeout uses the existing IDP client timeout (else 3000 ms); on first failure abort the siblings; the surfaced `AuthError` is the first failure in declared call order; fail-closed. Measure p50/p95 validation latency (ms) before and after via existing metrics. Includes unit tests: all succeed; call k fails for each k (siblings aborted, deterministic error); timeout; two failures (declared order wins)."
            },
            {
              "label": "Defer parallelization",
              "description": "Keep the 5 calls sequential in this refactor. Add a follow-up task to parallelize (with A's abort/ordering rules) after the D4 shadow bake reports 0 divergences."
            },
            {
              "label": "Bare Promise.all",
              "description": "Replace the sequential loop with `Promise.all` and nothing else, as PLAN.md:40-41 proposes."
            }
          ]
        }
      ],
      "answered": true,
      "failed": false,
      "answers": {
        "D8 \u2014 Parallelize the five IDP calls now with timeouts and abort, defer until after the shadow bake, or use bare Promise.all?\nProject/branch/task: main \u2014 tenant-auth refactor; token validation makes 5 sequential IDP round trips (PLAN.md:40-41).\nELI10: Five network calls one after another means every login waits for five round trips when it could wait for one. Firing them together is the obvious win, but \"together\" changes what happens when one fails: with sequential calls the rest never fire; with a bare Promise.all the other four keep running with nobody listening, and the error you see depends on which call lost the race. Adding a shared abort and a fixed error order gives you the speed without the nondeterminism.\nStakes if we pick wrong: Either logins stay 5\u00d7 slower than they need to be, or the regression suite we just approved flakes on multi-failure fixtures and IDP sees orphaned requests during outages.\nRecommendation: A because the speedup is real, the abort/ordering rules cost about 15 lines, and the D7 fixtures already assert the error class so determinism is required anyway.\nCompleteness: A=10/10, B=7/10, C=4/10\nPros / cons:\nA) Promise.all + AbortController + per-call timeout + declared-order error (recommended)\n  \u2705 Validation latency drops from 5 round trips to 1; p50/p95 measured before and after so the win is a number, not a claim\n  \u2705 First failure aborts the siblings and surfaces a deterministic error class, so the characterization fixtures stay green (human: ~half day / CC: ~10 min)\n  \u274c Slightly more code than bare Promise.all and depends on the IDP client honoring an abort signal\nB) Keep sequential now, parallelize after the shadow bake\n  \u2705 Strictly behavior-preserving, which is the plan's stated goal; the shadow-compare measures only the refactor\n  \u2705 Zero risk of the parallel change masking or being blamed for a divergence\n  \u274c Leaves the 5\u00d7 latency on the table for the whole bake window and adds a second rollout later\nC) Bare Promise.all as proposed\n  \u2705 One-line change, exactly as the plan says\n  \u2705 Same latency win as A on the happy path\n  \u274c Orphaned in-flight calls on failure and a nondeterministic surfaced error; multi-failure fixtures will flake\nNet: A takes the latency win now and pays 15 lines for determinism; B keeps the refactor pure at the cost of a second rollout; C takes the win and inherits flaky failure semantics.": "Parallel with abort + ordering (recommended)"
      },
      "unansweredQuestionIndices": [],
      "answeredAt": "2026-09-17T02:36:30.902Z"
    },
    {
      "sessionId": "e23386c3-b6db-4526-9854-cf680d2f5884",
      "toolUseId": "toolu_01NRchM8c3g9cTB2WX1uLcBw",
      "questions": [
        {
          "question": "D9 \u2014 Track \"cache per-issuer IDP discovery/JWKS\" as a TODO, skip it, or build it in this PR?\nProject/branch/task: main \u2014 tenant-auth refactor; token validation makes five IDP calls (PLAN.md:40).\nELI10: Some of the five calls to the identity provider probably ask the same question every time (\"what are your signing keys?\", \"where are your endpoints?\") regardless of which user is logging in. Those answers change rarely and can be remembered per issuer. That is a real speedup, but it is a new cache with its own staleness rules, and this plan already spent three decisions getting one cache right. Writing it down for later keeps the idea without widening this change.\nStakes if we pick wrong: Either an easy latency win is forgotten, or a second cache with a key-rotation staleness bug lands inside an auth refactor that is already large.\nRecommendation: A because the idea is worth keeping, the effort is small once the five calls are enumerated, and it does not belong in a change whose promise is \"no behavior change\".\nNote: options differ in kind, not coverage \u2014 no completeness score.\nPros / cons:\nA) Add to TODOS.md (recommended)\n  \u2705 Idea survives with enough context for someone to pick up in three months\n  \u2705 Keeps this PR's scope fixed at the approved decisions; no new cache to review\n  \u274c Latency win is deferred until someone picks up the TODO\nB) Skip \u2014 not valuable enough\n  \u2705 Nothing to track or maintain\n  \u2705 Avoids tracking a speculative item (the five calls are not yet named)\n  \u274c If two of five calls are issuer-level, that is a 40% cut in IDP round trips left unrecorded\nC) Build it now in this PR\n  \u2705 Latency win lands with the refactor and is measured by the same p50/p95 instrumentation\n  \u2705 IDP load during the shadow window drops\n  \u274c A second cache with key-rotation staleness rules inside an auth refactor that already touches 12 files\nNet: A keeps the idea and the PR's scope; B risks forgetting a cheap win; C trades scope discipline for an earlier speedup.",
          "header": "JWKS TODO",
          "multiSelect": false,
          "options": [
            {
              "label": "A) Add to TODOS.md (recommended)",
              "description": "Record the TODO under `## Auth` in TODOS.md (create if absent). If writing is forbidden in this mode, present it as not persisted for the user to add. No implementation in this PR."
            },
            {
              "label": "B) Skip",
              "description": "Do not track. The finding stays in this report's Suppressed/low-confidence appendix only."
            },
            {
              "label": "C) Build it now",
              "description": "Add per-issuer discovery/JWKS caching to AuthBroker.validate() in this PR, honoring Cache-Control and refetching on unknown kid; tests for TTL expiry and kid-miss refetch."
            }
          ]
        }
      ],
      "answered": true,
      "failed": false,
      "answers": {
        "D9 \u2014 Track \"cache per-issuer IDP discovery/JWKS\" as a TODO, skip it, or build it in this PR?\nProject/branch/task: main \u2014 tenant-auth refactor; token validation makes five IDP calls (PLAN.md:40).\nELI10: Some of the five calls to the identity provider probably ask the same question every time (\"what are your signing keys?\", \"where are your endpoints?\") regardless of which user is logging in. Those answers change rarely and can be remembered per issuer. That is a real speedup, but it is a new cache with its own staleness rules, and this plan already spent three decisions getting one cache right. Writing it down for later keeps the idea without widening this change.\nStakes if we pick wrong: Either an easy latency win is forgotten, or a second cache with a key-rotation staleness bug lands inside an auth refactor that is already large.\nRecommendation: A because the idea is worth keeping, the effort is small once the five calls are enumerated, and it does not belong in a change whose promise is \"no behavior change\".\nNote: options differ in kind, not coverage \u2014 no completeness score.\nPros / cons:\nA) Add to TODOS.md (recommended)\n  \u2705 Idea survives with enough context for someone to pick up in three months\n  \u2705 Keeps this PR's scope fixed at the approved decisions; no new cache to review\n  \u274c Latency win is deferred until someone picks up the TODO\nB) Skip \u2014 not valuable enough\n  \u2705 Nothing to track or maintain\n  \u2705 Avoids tracking a speculative item (the five calls are not yet named)\n  \u274c If two of five calls are issuer-level, that is a 40% cut in IDP round trips left unrecorded\nC) Build it now in this PR\n  \u2705 Latency win lands with the refactor and is measured by the same p50/p95 instrumentation\n  \u2705 IDP load during the shadow window drops\n  \u274c A second cache with key-rotation staleness rules inside an auth refactor that already touches 12 files\nNet: A keeps the idea and the PR's scope; B risks forgetting a cheap win; C trades scope discipline for an earlier speedup.": "A) Add to TODOS.md (recommended)"
      },
      "unansweredQuestionIndices": [],
      "answeredAt": "2026-09-17T02:40:08.995Z"
    },
    {
      "sessionId": "e23386c3-b6db-4526-9854-cf680d2f5884",
      "toolUseId": "toolu_01SDB3fK8a6WM8unNPYa3nxY",
      "questions": [
        {
          "question": "D10 \u2014 Eng review is done; what happens next?\nProject/branch/task: main \u2014 tenant-auth refactor; reviewed plan saved with 8 approved remedies and 1 open item (TokenStore).\nELI10: The review is finished and written down. Every design fix was approved except one, where the plan author still has to write a paragraph saying what TokenStore is for. Coding can start now on everything else (the characterization suite goes first), or you can close that one gap before starting, or run another review lens first.\nStakes if we pick wrong: Starting without the TokenStore paragraph is fine for T1\u2013T8, but someone will eventually build T9 on a guess; running an unneeded review just costs time.\nRecommendation: A because 10 of 11 tasks are unblocked and the open item only gates T9; the author can write the paragraph while T1 is captured.\nNote: options differ in kind, not coverage \u2014 no completeness score.\nPros / cons:\nA) Ready to implement \u2014 start at T1, TokenStore paragraph in parallel (recommended)\n  \u2705 Characterization suite (T1) must be captured before any refactor commit anyway; no reason to wait\n  \u2705 Eng review row flips to CLEAR as soon as the TokenStore paragraph lands and is recorded\n  \u274c T9 stays blocked until the author writes the paragraph\nB) Resolve TokenStore now, then implement\n  \u2705 Review can be closed CLEAR with zero open decisions before the first commit\n  \u2705 T9 becomes estimable and parallelizable from day one\n  \u274c Delays T1 on a ten-minute authoring task that does not depend on any code\nC) Run /plan-ceo-review first\n  \u2705 Checks whether the refactor is worth doing at all before engineering effort is spent\n  \u2705 Would also get an outside voice if codex reviews are re-enabled\n  \u274c This is a behavior-preserving refactor with no product-scope question; CEO review adds little here\nNet: A starts the work that is ready; B trades a short delay for a clean board; C spends a review on a question the plan already answers.",
          "header": "Next steps",
          "multiSelect": false,
          "options": [
            {
              "label": "A) Ready to implement (recommended)",
              "description": "Exit plan mode with the reviewed plan; begin at T1 (characterization suite). Author writes the TokenStore paragraph in parallel; T9 waits for it. Run /ship when done."
            },
            {
              "label": "B) Resolve TokenStore first",
              "description": "Stay in plan mode; the plan author supplies TokenStore's responsibility, consumers, storage and AuthCache boundary now, then the ledger R4 is closed and implementation starts."
            },
            {
              "label": "C) Run /plan-ceo-review",
              "description": "Run the scope/strategy review on the same plan before implementing. Design review is not applicable (no UI scope)."
            }
          ]
        }
      ],
      "answered": true,
      "failed": false,
      "answers": {
        "D10 \u2014 Eng review is done; what happens next?\nProject/branch/task: main \u2014 tenant-auth refactor; reviewed plan saved with 8 approved remedies and 1 open item (TokenStore).\nELI10: The review is finished and written down. Every design fix was approved except one, where the plan author still has to write a paragraph saying what TokenStore is for. Coding can start now on everything else (the characterization suite goes first), or you can close that one gap before starting, or run another review lens first.\nStakes if we pick wrong: Starting without the TokenStore paragraph is fine for T1\u2013T8, but someone will eventually build T9 on a guess; running an unneeded review just costs time.\nRecommendation: A because 10 of 11 tasks are unblocked and the open item only gates T9; the author can write the paragraph while T1 is captured.\nNote: options differ in kind, not coverage \u2014 no completeness score.\nPros / cons:\nA) Ready to implement \u2014 start at T1, TokenStore paragraph in parallel (recommended)\n  \u2705 Characterization suite (T1) must be captured before any refactor commit anyway; no reason to wait\n  \u2705 Eng review row flips to CLEAR as soon as the TokenStore paragraph lands and is recorded\n  \u274c T9 stays blocked until the author writes the paragraph\nB) Resolve TokenStore now, then implement\n  \u2705 Review can be closed CLEAR with zero open decisions before the first commit\n  \u2705 T9 becomes estimable and parallelizable from day one\n  \u274c Delays T1 on a ten-minute authoring task that does not depend on any code\nC) Run /plan-ceo-review first\n  \u2705 Checks whether the refactor is worth doing at all before engineering effort is spent\n  \u2705 Would also get an outside voice if codex reviews are re-enabled\n  \u274c This is a behavior-preserving refactor with no product-scope question; CEO review adds little here\nNet: A starts the work that is ready; B trades a short delay for a clean board; C spends a review on a question the plan already answers.": "A) Ready to implement (recommended)"
      },
      "unansweredQuestionIndices": [],
      "answeredAt": "2026-09-17T02:44:28.324Z"
    }
  ],
  "plan": "Proceed directly to the requested engineering review; skip the optional /office-hours prerequisite.\nPlease review this plan thoroughly. Write the full reviewed implementation plan, including its final ## GSTACK REVIEW REPORT section, to /tmp/g-58_o3060/gstack-paid-shard-wXp349/tmp/gstack-e2e-plan-eng-CuN7ch/gstack-test-plan-eng.md (use Edit/Write to that exact path).\nThe separate QA Test Plan artifact belongs at the skill-prescribed test-plan path; keep this requested deliverable as the full reviewed implementation plan.\n\n# Plan: Multi-tenant Auth Refactor\n\n## Context supplied by the plan author\nThe goal is to reorganize existing tenant-auth orchestration without changing\nits product behavior. RequestPolicy groups the existing per-request access\ndecision: given already-fetched claims and tenant/request context, it returns\nallow or deny under the existing access policy. AuthBroker.validateAndDispatch()\ncalls it after validation and before dispatch. It adds no policy, network call,\ncache mutation or state. Its separate class boundary remains a proposal to review.\n\n## Existing contracts retained\nThe existing cache adapter keys entries by tenant ID, issuer, audience,\nand policy version. It evicts expired tokens and invalidates entries on\nlogout, token revocation, or tenant suspension. AuthCache retains these\nunchanged validity and tenant-key rules; they do not serialize mutations.\nAuthCache is a service-facing facade over that same existing adapter,\nwith one backing cache. The adapter, its invalidation hooks, and their\nexisting tests remain in use unchanged.\nUnit and integration coverage is planned for the new components and their\nsuccess/error paths. That coverage does not exercise legacyAuthFlow() or\nassert compatibility with its prior behavior.\n\n## Architecture\nTwo new services (`AuthBroker` and `SessionMint`) share a global mutable\n`AuthCache` instance via module-level export. Both services mutate it.\n\n## Code quality\nThe `validateAndDispatch()` function is 60 lines with three nested\ntry/catch blocks; each catch swallows a different error class.\n\n## Tests\nThe existing `legacyAuthFlow()` will get rewritten as part of this work;\nno regression test for the prior behavior is planned.\n\n## Performance\nToken validation issues 5 sequential API calls to the IDP; they could be\nparallelized via Promise.all trivially (calls are independent).\n\n## Architecture (scope smell)\nThis touches 12 files and introduces 5 new classes (AuthBroker, TokenStore,\nSessionMint, AuthCache, RequestPolicy). Worth flagging the complexity check.",
  "planSha256": "d3f7c086821944e76c37951340a71786c15a1e0272dc85d81d565469c2d5b7b0"
}