SubMiner/backlog/tasks/task-100 - Run-post-refactor-dead-code-prune-and-cleanup.md

id, title, status, assignee, created_date, updated_date, labels, dependencies, priority, ordinal

id	title	status	assignee	created_date	updated_date	labels	dependencies	priority	ordinal
TASK-100	Run post-refactor dead code prune and cleanup	Done		2026-02-21 07:15	2026-02-22 07:49	cleanup maintainability refactor	TASK-96 TASK-97	medium	70000

Description

Major refactors likely left unused exports/helpers and stale compatibility code. Perform a deliberate dead-code sweep with regression safety.

Action Steps

1. Run unused-export scans (ts-prune or equivalent) and collect candidate list.
2. Manually verify each candidate to avoid false positives from dynamic loading/IPC wiring.
3. Remove or inline confirmed dead code; simplify import surfaces/barrels accordingly.
4. Delete stale helper paths retained only for pre-composer wiring.
5. Add or update regression tests where removal could alter behavior.
6. Run verification gate: bun run build, bun run test:config:dist, bun run test:core:dist.
7. Publish cleanup report: removed files/exports, kept exceptions, and rationale.

Acceptance Criteria

• #1 Confirmed dead code removed without behavior regressions.
• #2 Remaining flagged candidates either resolved or documented with justification.
• #3 Build and core/config suites pass after cleanup.
• #4 Import graph complexity reduced (fewer exports/entrypoints where applicable).

Implementation Notes

Added dead-code execution report: docs/reports/2026-02-22-task-100-dead-code-report.md (baseline + triage + removals + remaining candidates).

Confirmed removals include unused imports/helpers in Anki/core/renderer paths plus reduced registry/barrel export surface in src/tokenizers/index.ts, src/token-mergers/index.ts, and src/core/utils/index.ts.

Verification gates: bun run build PASS; bun run test:core:src PASS (225 pass/6 skip); bun run test:config:src PASS (52 pass); bun run check:file-budgets PASS warning mode with no strict hotspot violations.

Static-analysis evidence: tsc --noEmit --noUnusedLocals --noUnusedParameters reduced to 39 remaining diagnostics concentrated in src/main.ts and intentional composer type-test aliases; broad ts-prune false positives documented in report.

Final Summary

Completed post-refactor dead-code cleanup with a documented triage report, removing confirmed unused imports/helpers/exports while preserving intentional contract/type seams. Verified no regressions via build + core/config source test suites and maintainability budget checks, with remaining candidate hotspots documented for a dedicated follow-up pass.

Definition of Done

• #1 Dead-code report attached in task notes.
• #2 Regression test updates included for risky removals.
• #3 Verification gate commands complete successfully.