{
  "updated": "2026-09-11T19:29:23.868486+00:00",
  "title": "Pattern computation cost",
  "design": "https://github.com/commonfabric/labs/pull/7155",
  "pr": "https://github.com/commonfabric/labs/pull/7331",
  "activity": "Producer #7323 current-main integration passes the full runner suite: 1,458 tests and 9,223 steps, zero failures. Final Cubic fixes pass 13 index tests / 57 steps, API 29/7, transformers 1,172/981, static 68/33 plus 24 browser cases, all 46 type groups and 600 documentation blocks. Antagonistic review is clean. Publishing fixes for fresh CI and Cubic review; #7336 has clean Cubic output at 330fd67c47. Live poll remains untouched.",
  "review": "Each slice requires clean current-head CI, actual Cubic review, and antagonistic review before landing. The checks ledger records completed merges.",
  "checks": [
    "#7241: all 69 CI gates passed; latest Cubic run reported zero issues; merged as e70704f206.",
    "#7256: all 69 CI gates passed with clean Cubic/antagonistic reviews; merged as 8d3c7dbc3c.",
    "#7261 merged as c8a64af840: all CI gates passed; latest Cubic reported zero issues; antagonistic review clean. Browser recordings remain available below.",
    "#7265: merged as 3aee034aff after all 69 CI gates, zero-issue latest Cubic review, and clean antagonistic review.",
    "#7264: merged as 5d23bc5ba9 after all 69 CI gates and clean latest Cubic/antagonistic reviews.",
    "#7259: named incremental aggregates merged as d9b45371ef; contracts and measurements are linked from the implementation tracker.",
    "#7279: merged as 6472ea93df after all 69 CI gates, zero-issue Cubic review, and clean antagonistic review.",
    "#7289: merged as b18d90b6aa with clean CI and Cubic/antagonistic reviews.",
    "#7285: merged as 1407825b0c after all current-head CI gates, zero-issue Cubic review, and clean antagonistic review.",
    "#7294: index/lookup contract merged as 039e8aecb0 after clean CI and Cubic/antagonistic reviews.",
    "#7302 merged as 360d07680f after all 69 current-head CI gates and clean Cubic/antagonistic reviews.",
    "#7300 merged as efc91a38b6 after all 69 current-head checks and clean Cubic/antagonistic reviews; generic Cell aliases preserve resolved payload types.",
    "#7257 current implementation validation (2b24f0823f): 1,428 runner tests / 8,909 steps; full CLI suites; 1,168 transformer tests / 961 steps; 46 type groups; 599 documentation blocks; four synthetic browser row cases; formatting and lint pass. Generated-pattern, vintage, and scale acceptance checkpoints are detailed in the PR.",
    "#7257 merged as c122d6a9fc after all 69 current-head checks and zero-issue full Cubic review across 43 files, with clean antagonistic review.",
    "#7282 main integration: all six functional assertions and declared budgets, 413 authoritative pattern checks, full pattern package including browser tests, and all 46 type groups pass.",
    "#7304 merged as c0454ab24e after all 69 exact-head checks, zero issues in the full nine-file Cubic rereview, and clean antagonistic review.",
    "D3 local validation: 1,431 runner tests / 8,923 steps; 46 type groups; 599 documentation blocks; history index, formatting, lint, and six exact reuse/control benchmark counts pass. Antagonistic review is clean.",
    "#7282 merged as be92af0510 after all 69 exact-head checks, zero-issue Cubic review, and clean antagonistic review; all six scale assertions pass.",
    "#7327 merged as b135f7f067ca8112ac7bf6f638b9511b26361944: all current-head CI gates succeeded or were skipped; Cubic run 103250197793 reported zero issues on dae8319a23; antagonistic review was clean. All nine measurement cases and the forced-disposal cleanup control passed.",
    "#7308 merged as e435590cf4c94c91a32260315efe1eedc5e66a7b: all 69 reviewed-head checks succeeded or were skipped, with clean Cubic and antagonistic review. Memory queries wait for session restoration before issuing requests.",
    "#7312 merged as c00a2581f13b3183986f4d30c6d4ad86e28a34ab: all 69 reviewed-head checks succeeded or were skipped, with clean Cubic and antagonistic review. Rendered row acceptance covers storage outages, catch-up, and subsequent updates.",
    "#7329 merged as 593c341b27a8baff681374bd01b3125a70ffeca8: all 69 exact-head checks succeeded or were skipped; Cubic run 103258387302 reported zero issues on 9e28f27015; antagonistic review was clean. Client remote-row identity and narrow-invalidation acceptance is landed.",
    "#7328 merged as 26de7f96079d1b4c87eaa44296cc9a453f5f2b9d: all 69 exact-head checks succeeded or were skipped; Cubic 103273903333 reported zero issues on c003f349e8; antagonistic review was clean.",
    "#7330 merged as 06942589ab4825d260e5d8acf64219bdb5d48854: all 69 exact-head gates passed or skipped; Cubic 103278783473 reviewed all five files with zero issues on fe53a2d97d; antagonistic review clean.",
    "#7332 merged as 881bda4ba1c0805ca88c3e5d2046cfefbcba5e4a: all 69 exact-head gates passed or skipped; Cubic 103278889723 reviewed both files with zero issues on db78661841; antagonistic review clean. C2 acceptance reconciliation is complete.",
    "#7317 merged as 3e55b4e42dfd70fef3bd1cf4346fa706c4f2d87c: Restore reactive lunch-poll option and voter rows. All 69 exact-head gates passed or skipped on c2e63c1306da1723547b72d98e7c78fc16b878e5; clean Cubic and antagonistic reviews preceded merge.",
    "#7320 merged as 3f2401638594bdca616906816a6c06011a39b643: Separate list coordinator state across serving principals and sessions. All 69 exact-head gates passed or skipped on d843b3be374d9b999f3cbd4975ae9f75d4f5e9c1; clean Cubic and antagonistic reviews preceded merge.",
    "#7321 merged as 2fda18e1acc435f0c6642ff93809d14cd1ecc543: Index pending schema policies to bound document lookup work. All 69 exact-head gates passed or skipped on 8d9937f7192f16fc70cc01641bcae8b24ad83551; clean Cubic and antagonistic reviews preceded merge.",
    "Q7 local delta: transformers 1,172/981, API29/7, static68/33 plus24 browser cases,46 type groups,600 docs blocks,fmt/lint/cycles pass. Runner sweep1447 passed with2 stale descriptor/setup test failures; repaired suites pass2/7, final legacy recovery1/2, tagged consumers coverbothmodes. Antagonistic review clean. Final full CI required.",
    "#7331 merged as cd525a0e5395a72d8e8910353a4e8a8a37bfca24: all 69 exact-head gates passed or skipped; Cubic 103286540159 reported zero issues on da0aa0ecef; final antagonistic review clean.",
    "#7340 merged: af7c0653e0 passed all 69 checks (66 success, 3 skipped); Cubic found no issues in four files. Initial unrelated engine watermark timeout retained in logs; isolated test and CI job rerun passed. Both final-head synthetic browser variants completed with 134 runs, 1,016 accesses, 896 links, two commits, zero event errors.",
    "Current-main integration: full runner 1,458 tests / 9,223 steps passed. Final public-descriptor schema fix: focused index 13/57, API 29/7, transformers 1,172/981, static 68/33 plus 24 browser cases, 46 type groups and 600 docs blocks passed. Final current-head CI and Cubic review remain required."
  ],
  "stages": [
    {
      "id": "A0",
      "title": "Controlled workload and baseline",
      "status": "done",
      "detail": "Controlled workload and attributed baseline landed in #7241 with all review and CI gates passing."
    },
    {
      "id": "A1",
      "title": "Reactive read accounting",
      "status": "done",
      "detail": "Core instrumentation shipped in #7246; additional accounting and reporting regressions landed in #7241."
    },
    {
      "id": "A2",
      "title": "Attributed CLI reports",
      "status": "done",
      "detail": "Core instrumentation shipped in #7246; additional accounting and reporting regressions landed in #7241."
    },
    {
      "id": "A3",
      "title": "Read budgets and whole-step coverage",
      "status": "done",
      "detail": "Read budgets and whole-step attempt accounting landed in #7257 after all CI and review gates passed."
    },
    {
      "id": "A4",
      "title": "Read-side benchmark",
      "status": "done",
      "detail": "Browser benchmark landed in #7261. Scale assertions for 74, 296, and 1,184 votes landed in #7282 after all six assertions, full package/type checks, CI, and clean reviews."
    },
    {
      "id": "A5",
      "title": "Browser and cross-space comparison",
      "status": "waiting",
      "detail": "Synthetic same-space/cross-space comparison merged in #7340 with both final-head browser acceptances and clean reviews. Deployed-board confirmation remains waiting on Q4 coordination; the live poll is untouched."
    },
    {
      "id": "C1",
      "title": "Multi-replica reproductions",
      "status": "done",
      "detail": "Remote edits, removal/restoration, and cold first-browser materialization are validated in nested/mapped and same/cross-space fixtures. Session-restoration repair #7308 and rendered reconnect acceptance #7312 are merged; local recordings remain available."
    },
    {
      "id": "B1",
      "title": "Grouping and unique-key indexing",
      "status": "review",
      "detail": "Tagged implementation and Cubic fixes pass local validation, including current-main full runner 1,458 tests / 9,223 steps. Publishing for final current-head CI and clean Cubic review."
    },
    {
      "id": "B2",
      "title": "Keyed lookup and join",
      "status": "review",
      "detail": "Local/cross-space joins, restart, and demand-only enumeration pass acceptance in #7323. Q7 tagged enumeration is approved and implemented. Final publication gates remain."
    },
    {
      "id": "B3",
      "title": "Deterministic aggregates",
      "status": "done",
      "detail": "Named aggregates landed in #7259 with numeric and identity contracts, cold-resume regressions, and measured comparisons. Index and keyed-lookup contracts are the next collection-operator work."
    },
    {
      "id": "B4",
      "title": "Operator documentation",
      "status": "review",
      "detail": "Index complexity, joins, tagged enumeration, and public descriptor migration are documented in #7323. Q7 decision record preserves context, consequences, and alternatives. Final publication gates remain."
    },
    {
      "id": "C2",
      "title": "Partial materialization correctness",
      "status": "done",
      "detail": "Cold first-demand, remote membership, and reconnect acceptance are validated. Session-restoration repair #7308 and rendered reconnect acceptance #7312 are merged. Acceptance reconciliation is complete; C3 producer checks are separate."
    },
    {
      "id": "C3",
      "title": "Remote row invalidation",
      "status": "done",
      "detail": "Client acceptance landed in #7329 and serving-host acceptance landed in #7331 (cd525a0e5395a72d8e8910353a4e8a8a37bfca24). Both passed all 69 checks and clean Cubic/antagonistic reviews. Acceptance covers correct values, stable output links and producer identities, and untouched-row inactivity in both edit directions."
    },
    {
      "id": "C4",
      "title": "Reactive lunch-poll rows",
      "status": "done",
      "detail": "Repository reactive lunch rows landed in #7317 (3e55b4e42d), with serving-instance and policy-index dependencies #7320/#7321. All merge gates passed. Synthetic two-user tests pass in both execution modes. Live poll update still requires coordination."
    },
    {
      "id": "B5",
      "title": "Lunch-poll operator migration",
      "status": "todo",
      "detail": "Preserve behavior and add measured budgets."
    },
    {
      "id": "B6",
      "title": "End-to-end savings",
      "status": "todo",
      "detail": "Compare maintenance and user-visible cost on matched rigs."
    },
    {
      "id": "D1",
      "title": "Lazy materialization coordination",
      "status": "todo",
      "detail": "Follow the owning plan; avoid duplicate implementation."
    },
    {
      "id": "D2",
      "title": "Baseline after dependency changes",
      "status": "todo",
      "detail": "Separate fewer reads from cheaper reads."
    },
    {
      "id": "D3",
      "title": "Scoped snapshot memo verification",
      "status": "review",
      "detail": "Implemented and validated: 41 snapshot-memo steps, full runner suite, and exact reuse counts at three sizes in metadata and historical scopes. Awaiting D3 PR gates."
    },
    {
      "id": "E1",
      "title": "Computed versus lift measurements",
      "status": "done",
      "detail": "Merged #7327: validated computed/broad-lift/narrow-lift measurements at 32/128/512 linked rows, with unread-field edits and a reproducible command."
    },
    {
      "id": "E2",
      "title": "Author guidance",
      "status": "done",
      "detail": "Measured author guidance merged in #7330: computed/lift read width, repeated scans, explicit cell receivers, and numeric/measurement limits. All 69 exact-head gates and both reviews passed."
    },
    {
      "id": "E3",
      "title": "Nested-scan diagnostic",
      "status": "done",
      "detail": "Nested-scan warning merged in #7328 after 69 exact-head checks, clean Cubic, and clean antagonistic review. Eleven focused cases and the 413-entry corpus review validate the diagnostic."
    }
  ],
  "questions": [
    {
      "id": "Q1",
      "title": "Where should the dashboard live?",
      "proposal": "Keep the dashboard local as it is.",
      "blocks": "None.",
      "status": "Approved"
    },
    {
      "id": "Q2",
      "title": "Merge automatically after all gates pass?",
      "proposal": "Mike authorizes continued implementation and merging after checks, antagonistic review, and clean latest Cubic review.",
      "blocks": "None; review and CI gates still apply.",
      "status": "Approved"
    },
    {
      "id": "Q3",
      "title": "Any priority, deadline, or environment constraints?",
      "proposal": "No constraints at this time.",
      "blocks": "None.",
      "status": "Answered"
    },
    {
      "id": "Q4",
      "title": "Which deployed lunch-poll board should anchor A5/B6?",
      "proposal": "Do not touch the live poll until coordinated with Mike. Continue synthetic local workloads.",
      "blocks": "Live poll access only.",
      "status": "Coordination required"
    },
    {
      "id": "Q5",
      "title": "Push and merge implementation PRs after review?",
      "status": "Approved",
      "proposal": "Mike authorized continued implementation pushes and merges, including #7257, after antagonistic review, clean Cubic review, and passing CI.",
      "blocks": "None."
    },
    {
      "id": "Q6",
      "title": "May I post signed code-review replies?",
      "proposal": "Signed implementation review replies and fresh Cubic review requests are authorized.",
      "blocks": "None.",
      "status": "Approved"
    },
    {
      "id": "Q7",
      "title": "How should enumeration expose mixed primitive and Cell keys?",
      "proposal": "Mike approved explicit tagged mixed-key enumeration, preserving homogeneous keys() usage. Decision, consequences, and alternatives are recorded in docs/history/features/2026-09-11-index-key-enumeration-decision.md.",
      "blocks": "No unanswered decision; final validation and review are in progress.",
      "status": "Approved"
    }
  ],
  "milestones": [
    {
      "title": "Observe read costs",
      "state": "Available",
      "detail": "Explore the recorded 74-vote workload below. These are actual measurements, not simulated speedups."
    },
    {
      "title": "See budget failures",
      "state": "Available \u00b7 A3",
      "detail": "Five real CLI recordings below show passing budgets, initialization failure, many cheap derivations exceeding a total, and one expensive body exceeding its per-run limit."
    },
    {
      "title": "See remote updates",
      "state": "Available \u00b7 C1/C3",
      "detail": "The row demo shows remote membership, colors, ranking, cross-space profiles, and cold first browser materialization. Rendered reconnect acceptance is validated and merged in #7312."
    },
    {
      "title": "Compare optimized vote updates",
      "state": "Planned \u00b7 B5\u2013B6",
      "detail": "Compare the same interaction before and after migration, with read work and measured time."
    }
  ],
  "validatedRevision": "6f5a2b23307cc8fdf4716ef6be94f87e0596779b",
  "validationProvenance": {
    "revisionUrl": "https://github.com/commonfabric/labs/commit/6f5a2b23307cc8fdf4716ef6be94f87e0596779b",
    "scope": "Serving-host acceptance: full runner suite passed (1,437 tests / 8,960 steps); final serving-loop file passed all 27 cases after the authored-watermark correction. All 46 type groups and 599 documentation blocks passed. CI and Cubic review are tracked separately before landing."
  }
}