Plan Review: Persist plan-HTML checkbox state in HTML attributes

Executive Summary

All seven reviewers endorse the core architecture: replacing localStorage with agent-written HTML checked attributes as the single portable source of truth. The plan correctly identifies a structural violation (per-browser state masquerading as file state) and proposes a clean, minimal fix that aligns with the existing .completed class pattern already used for step state.

The team unanimously flagged one self-referential inconsistency — the plan file itself still contained the localStorage code it proposes to remove — which has been fixed in this review pass. Secondary concerns around test path conventions, completion-checklist ambiguity, step ordering, and accessibility have also been addressed with inline edits to the source plan.

Role-by-Role Findings

Architecture

Fit: Architecturally sound — correctly identifies the single-source-of-truth violation and proposes a coherent resolution aligned with existing patterns.

• Plan’s own script contained localStorage code low
• Completion-list checkbox persistence ambiguity medium
• Browser ticks being ephemeral not surfaced in acceptance criteria medium — documented in Context section; completion-list AC #7 added
• Step ordering dependencies implicit low
• Shell test does not cover rendered DOM behavior low — accepted: matches repo test convention

Completeness

Completeness: Well-scoped and specific with exact functions, grep commands, and file paths named.

• Plan’s own script had localStorage high
• Test directories may not exist (mkdir not explicit) medium — implicit in file creation tooling
• Step 2 verify references fixture created in Step 4 medium
• SKILL.md update text not quoted verbatim low — implementer can grep for context

Testability

Test coverage: Clear objective-verification test and sub-tests, all consolidated in a single shell script appropriate for scope.

• No browser-level test for progress bar rendering on first paint high — accepted: shell-test convention; Playwright noted as future enhancement
• Plan file’s own localStorage contradicts its objective medium
• AC #3 does not negate sessionStorage/indexedDB medium — noted; not introduced by this refactor
• Fixture spec (how many criteria pre-checked) not documented in test low

Risk

Risk level: low. No breaking API changes, no shared state, no concurrency hazards.

• Plan’s own script contained localStorage medium
• Backfill next-step could orphan existing localStorage ticks with no migration path medium — scoped to next-step with warning
• File System Access API next-step is Chromium-only low — future scope with fallback noted

Conventions

Fit: Follows established project patterns closely — kebab-case filename, correct placement, HTML plan format.

• Test path tests/plan-agent/ introduced new plugin-scoped pattern low
• Fixture path diverged from concern-based naming low
• Section comment in IIFE not yet renamed low — fixed in this pass

UX

User fit: Well-structured and readable for developer audiences.

• Plan’s own JS used localStorage high
• Completion checklist disabled state unexplained medium
• No in-plan signal that browser ticks are ephemeral medium — Context section documents this
• Sidebar nav disappears on mobile with no back-to-top low — skeleton-level concern

Accessibility

A11y compliance: Largely WCAG 2.1 AA compliant with solid foundational patterns.

• prefers-reduced-motion not gating pulse-dot animation medium
• Completion checkboxes lack accessible disabled-state explanation medium
• Status badge missing aria-label low
• Checkbox touch targets 16px < 24px WCAG 2.5.8 AA minimum medium — skeleton-level fix
• aria-current="true" could be "location" for semantic precision low
• Details/summary triangle characters not universally announced low — skeleton-level fix

Agreements & Conflicts

Agreements (amplified)

Conflicts

None. All recommendations are additive and compatible across reviewers.

Highest-Risk Issues

1. Self-referential localStorage in plan script (7/7 reviewers) — removed STORAGE_KEY, saveState(), restoreState() from plan’s own <script>
2. No browser-level test for first-paint rendering (Testability, Architecture, Risk) — accepted per shell-test convention; Playwright E2E noted as future enhancement
3. Completion-list persistence ambiguity (Architecture, UX, Accessibility) — AC #7 added; completion note with aria-description applied
4. Test paths diverge from project conventions (Conventions, Completeness) — paths corrected to concern-based naming

Edits Applied