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Pokemon evolution order flake

Archived
pokemon-evolution-order-flake

Created

Jul 06, 14:05

Started

Jul 06, 16:25

Completed

Jul 06, 17:46

DevOps handoff

Type

Bug

Shape

backend

Worktree Slug

pokemon-evolution-order-flake

Repositories

mcritchie-studio

Release Slug

—

Branch

feat/pokemon-evolution-order-flake

Pull Request

https://github.com/amcritchie/mcritchie-studio/pull/427

Local URL

http://localhost:3003

QA URL

—

Production URL

—

determinism test-flake

Acceptance Criteria

  • PokemonEvolutionTree.for returns branching evolutions in stable order
  • regression test proves order matches the evolution list

Expected Test Plan

  • [unit] evolution fan-out returns branches in evolution-list order regardless of DB insertion order
  • [integration] full suite green under random seed (no order flake)

Checks Run

  • [unit] pokemon_evolution_tree_test 'fans out over branching evolutions in evolution-list order' — RED on heap order, GREEN after fix; deterministic across seeds 1/999/424242
  • [unit] full pokemon_evolution_tree_test file green (5 runs, 10 assertions)
  • [integration] full-suite-check (db:test:prepare test test:system) green
  • [full-suite@bce1db5ef077e8b03659f6e96b1734bd515e84bb] bin/rails db:test:prepare test test:system green
  • [rubocop@bce1db5ef077e8b03659f6e96b1734bd515e84bb] bin/rubocop clean

Agent Context

Pre-existing determinism flake surfaced (not caused) by test-telemetry-from-ci's added tests perturbing suite ordering. app/models/pokemon_evolution_tree.rb:28 does Pokemon.where(slug: next_slugs).to_a — SQL IN does NOT preserve next_slugs order, so Postgres heap order decides branching-evolution order nondeterministically. test/models/pokemon_evolution_tree_test.rb 'for fans out over branching evolutions' asserts %w[eevee vaporeon jolteon] but intermittently gets %w[eevee jolteon vaporeon] under some suite seeds. Fix: re-order the where() results to match next_slugs, e.g. found = Pokemon.where(slug: next_slugs).index_by(&:slug); frontier = next_slugs.filter_map { |s| found[s] }. Write the failing regression at unit tier first (seed-independent).

Stage Timeline

Who handled each stage, the time it took (measured), and the model / tokens / cost reported (best-effort) — plus who's on it right now. — means the agent didn't report that metric.

Sizing Avi · PO SMALL Dev SMALL Actual XL ≠ forecast
  1. Created → Designed
    L Lugia
    Lugia
    Model
    —
    Duration
    —
    Tokens
    —
    Cost
    —
    Completed Jul 06, 14:05 · 2 days ago
    api
  2. Designed → Building
    L Lugia
    Lugia
    Model
    claude-opus-4-8
    Duration
    about 2 hours
    Tokens
    41,108,603
    Cost
    ~$27.85
    Started Jul 06, 14:05
    Completed Jul 06, 16:25 · 2 days ago
    cli
  3. Building → Submitted
    L Lugia
    Lugia
    Model
    claude-opus-4-8
    Duration
    8 minutes
    Tokens
    2,295,624
    Cost
    ~$1.22
    Started Jul 06, 16:25
    Completed Jul 06, 16:33 · 2 days ago
    cli
  4. Submitted → Reviewed Review Activity
    C Carl
    Carl primary
    S Shannon
    Shannon light
    Model
    claude-opus-4-8
    Duration
    13 minutes
    Tokens
    253,734
    Cost
    ~$0.17
    Started Jul 06, 16:33
    Completed Jul 06, 16:46 · 2 days ago
    cli
  5. Reviewed → Assembled
    S Steffon
    Steffon
    Model
    claude-opus-4-8
    Duration
    38 minutes
    Tokens
    14,541,305
    Cost
    ~$8.86
    Started Jul 06, 16:46
    Completed Jul 06, 17:24 · 2 days ago
  6. Assembled → Shipped
    A Avi
    Avi
    Model
    claude-opus-4-8
    Duration
    22 minutes
    Tokens
    3,767,005
    Cost
    ~$3.29
    Started Jul 06, 17:24
    Completed Jul 06, 17:46 · 2 days ago
  7. Shipped → Archived
    —
    Model
    —
    Duration
    about 4 hours
    Tokens
    —
    Cost
    —
    Started Jul 06, 17:46
    Completed Jul 06, 22:06 · 1 day ago

Conversation

QA review feedback, agent handoffs, and follow-up notes for this task.

Handoff avi 2 days ago

Avi review approved; ready for Steffon's qa-release sweep.

Handoff alex 2 days ago

Manager review approved: IN-clause order fix (index_by + filter_map preserves next_slugs order); red-green regression proof (branches seeded reversed, deterministic across 3 seeds); confirmed only order-dependent IN fan-out in the model; CI green 4 checks; dor-check DoR-to-Merge met.

Sealed-bid sizing

Edit →

Alex (PM)

—

Avi (PO)

SMALL

Dev

SMALL

Actual

XL