Post-implementation self-review checklist. Use after completing a coding phase to audit imports, styling, design compliance, and test coverage before requesting human review.
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Post-implementation self-review checklist. Use after completing a coding phase to audit imports, styling, design compliance, and test coverage before requesting human review.
MANDATORY after each phase of a frontend feature. CLAUDE.md requires this — see the "Workflow" section under Frontend Coding Conventions.
Fix ALL issues found — do not present code with known issues.
1. Global Sweep
When you fix an issue in one file, grep ALL other files you touched for the same pattern.
"Did I make this same mistake in any other file in this feature?"
2. Import Audit
For every file you created or modified:
Components exported from frontend/components/ui/index.ts are imported from @/components/ui, not from antd
No hardcoded hex colors — all use COLOR.* from @/constants
Hooks live in frontend/hooks/, not frontend/components/ui/. Even if a hook is tightly coupled to one component, it's not a component — placing it under components/ui/ makes it auto-export from the UI barrel and discoverable from the wrong place.
Prefer barrel imports (@/constants, @/hooks, @/components/ui, @/types) over deep paths (../../../../constants/address) unless the barrel triggers a circular import in tests. Be consistent within a single import block.
Touched-file violations: if you added a line to a file that already violates a project rule (raw antd import, hardcoded hex, etc.), either fix it in scope (1–3 lines) or call it out in the PR description as out-of-scope follow-up — never silently leave it (see CLAUDE.md "Fix Globally, Not Locally → Touched-file ownership").
Run yarn lint:frontend NOW. Fix all errors before continuing.
3. Styling Audit
No duplicated styles from existing @/components/ui components (e.g., don't recreate SetupCard styles as inline objects)
SCSS utility classes used where available (m-0, text-sm, text-center) instead of inline styles
COLOR.* constants used for all colors
No inline style overrides on custom UI components that handle their own styling
4. Design Compliance
For every screen, compare against the design spec:
All text matches word-for-word (not paraphrased)
Heading levels match (level={3} vs level={4})
Input sizes match (default vs size="small" vs size="large")
Button types match (type="primary" vs type="default" vs type="link")
Layout structure matches (borderless rows vs bordered cards, single vs stacked cards)
Button widths match (block vs alignSelf: flex-start)
5. Test Coverage
Tests exist for every new component, hook, and service in this phase
Tests use factories from frontend/tests/helpers/factories.ts where possible
eslint-disable blocks in test files have matching eslint-enable
All tests pass: yarn test:frontend -- --testPathPattern="<feature>" — run NOW
6. State Transition Audit
The most common bug class missed by single-frame tests: state that persists across user actions (TanStack useMutation error/data, TanStack useQuery error, custom flags) is not reset when the user dismisses an error and tries again via a different entrypoint.
For each error / loading / success state this PR introduces or modifies on a UI driven by useMutation or any other persistent state machine:
Map the state machine on paper before reviewing the JSX. Enumerate every transition: idle → pending, pending → success, pending → error, error → dismiss, error → retry, success → close. The dismiss → retry edge is where bugs live.
List every user entrypoint that reaches the mutation. If the component has a multi-step user flow (e.g. address → password → confirm), the entrypoint that opens the next step is not the entrypoint that fires mutateAsync. Walk that path explicitly: after dismissing an error, what does the next click render?
The dismiss handler must reset the mutation (mutation.reset()) — and any other state the next attempt depends on (form inputs, navParams, derived flags). Stale error state will re-render the wrong modal on the next attempt.
There must be a test that fires the full sequence: trigger → error → dismiss → re-trigger → assert the second attempt starts clean. Tests that only assert "given mutation in error state, X renders" are incomplete on their own — they cover the frame, not the transition.
Asymmetry check: if cases 1, 2, 3 of a feature look symmetric but each has a slightly different number of clicks before the mutation fires, the case with the most clicks-before-mutation is the bug. Walk those paths individually, don't generalise.
Fail criterion: if you can't point to a test that asserts the transition (not just the state), this audit isn't done. A fully green test suite is meaningless when the bug lives between frames.
7. Trust Boundary & Fallback Audit
For data crossing a trust boundary (network responses, navParams, localStorage, query strings):
Types narrow to exactly the contract, not "what we'll tolerate". prefill_amount_wei: number | string is a lie if the backend always emits a string and a JSON-number value already lost precision at JSON.parse time. Wide types invite silent bugs upstream of your guard.
Type guards reject mismatched types so the host falls through to its generic failure path. Don't accept a wider input than the contract.
Defensive fallbacks must render a complete, coherent UI — not a half-rendered string with empty interpolation slots like "at least 0.75 to cover gas fees". If a coherent fallback isn't possible (e.g. unknown chain → no native-token symbol → meaningless body copy), return null at the hook layer and let the host render its generic failure modal instead. Silent bad copy is worse than a fallback modal.
Test the malformed-response paths. For each guard branch (isInsufficientGasError, try/catch around asEvmChainId, etc.), write a test that asserts the fallback behaviour, not just the happy path.
8. Restraint Audit
If a thing isn't earning its keep, delete it.
No reflexive useMemo / useCallback. A 2-property dict lookup or a sync object destructure doesn't need memoization. Memoize only when (a) a downstream consumer threads the value through a dep array, (b) it's passed to a React.memo'd component, or (c) the computation is genuinely non-trivial. Hook return values that callers spread into JSX should be memoized — consumers may put them in a dep array and identity churn breaks them.
No comments that restate lint / type-system / framework invariants. "Do not move", "load-bearing", "see Strict Mode docs", and similar warnings about hook ordering, rules-of-hooks, or useState/useEffect execution order are noise — lint catches these or they're framework-stable. Drop them.
Every type field, function param, and returned key has a runtime read site. Grep for the field name before adding. If the only writer is a test factory, the field is dead — drop it from both the type and the factory.
Don't reuse a handler with state-specific side effects across sibling states. If handleClose contains if (isSuccess) onSuccess?.(), don't bind it to the gas-error dismiss path — even if the success branch is currently a no-op when isError, the coupling is a future-bug trap. Split into per-state dismiss handlers.
9. Final Gate
All must pass before presenting for human review:
yarn lint:frontend — 0 errors
yarn test:frontend -- --testPathPattern="<feature>" — all pass
No eslint-disable comments in source files (only in test files, paired)
No files that duplicate existing patterns
If any check fails, fix it before requesting review.
