500 2026 01 27 21 45 00 Delete Indexing System 0cf944c0

Goal

Delete the entire indexing system. It's premature optimization that adds startup latency for marginal glob improvement.

Rationale:

• Only ONE tool (glob.py) uses the index
• Every startup: scan filesystem to count → scan again to build → hold paths in memory
• The "benefit": iterate a cached list instead of os.scandir()
• This is startup tax for negligible gain

Non-goals:

• Re-implementing indexing elsewhere
• Adding new optimization to glob
• Changing glob's functional behavior

Scope & Assumptions

DELETE (Production Code):

MODIFY (Production Code):

MODIFY (Tests):

MODIFY (Documentation):

Assumptions:

• glob.py already has filesystem fallback (confirmed)
• No other code paths depend on CodeIndex (confirmed by research)

Deliverables (DoD)

1. Zero indexing imports anywhere

   • grep -r "from tunacode.indexing" src/tunacode/ returns empty
   • grep -r "CodeIndex" src/tunacode/ returns empty
   • grep -r "IndexingService" src/tunacode/ returns empty

2. No startup indexing

   • App starts without "Code cache built" message
   • No filesystem scans at startup

3. Glob still works

   • uv run pytest passes
   • Manual glob test succeeds

4. Clean architecture

   • tools → indexing violation eliminated (issue #314)

Milestones

M1: Delete indexing/ module and core wrapper

Effort: Low | Files: 4

1. Delete src/tunacode/indexing/ directory
2. Delete src/tunacode/core/indexing_service.py

M2: Update consumers (glob, state, ui)

Effort: Medium | Files: 3

1. Clean tools/glob.py - remove index optimization
2. Clean core/state.py - remove indexing_service property
3. Clean ui/app.py - remove startup indexing

M3: Update tests and docs

Effort: Low | Files: 6+

1. Update layer tests
2. Delete indexing.md
3. Update DEPENDENCY_MAP.md, MAP.md, NEW_layers.html, tools-overview.md

M4: Validation

Effort: Low

Run all verification commands, close issue #314.

Work Breakdown (Tasks)

Task Details

T1: Delete indexing module

• rm -rf src/tunacode/indexing/
• rm src/tunacode/core/indexing_service.py
• Acceptance: directories/files gone

T2: Clean consumers

• tools/glob.py:

  • Remove line 12: from tunacode.indexing import CodeIndex
  • Remove lines 67-77: index lookup logic
  • Delete _get_code_index() function (lines 126-135)
  • Delete _glob_with_index() function (lines 176-200)

• core/state.py:

  • Remove TYPE_CHECKING import of IndexingService
  • Remove _indexing_service attribute
  • Delete indexing_service property

• ui/app.py:

  • Delete _run_startup_index() method
  • Remove call to it from startup sequence

• Acceptance: No import errors, glob uses filesystem only

T3: Update tests and docs

• tests/test_dependency_layers.py: Remove indexing from LAYERS

• tests/architecture/test_import_order.py: Remove indexing from SHARED_LAYER_MODULES

• Delete docs/codebase-map/modules/indexing.md

• Update MAP.md, DEPENDENCY_MAP.md, NEW_layers.html, tools-overview.md

• Acceptance: Tests pass, no indexing references in docs

T4: Validate

# No indexing imports
grep -r "from tunacode.indexing" src/tunacode/
grep -r "CodeIndex" src/tunacode/
grep -r "IndexingService" src/tunacode/

# Tests pass
uv run pytest

# No doc references
grep -r "indexing" docs/ | grep -v ".git"

Risks & Mitigations

Test Strategy

Existing tests must pass. No new tests - we're deleting code, not adding features.

References

• Issue: https://github.com/alchemiststudiosDOTai/tunacode/issues/314
• Research: memory-bank/research/2026-01-27_13-11-55_issue-314-lateral-coupling-tools-indexing-lsp.md
• Prior plan (superseded): memory-bank/plan/2026-01-27_21-30-00_issue-314-lateral-coupling.md

Tickets

Dependencies

tun-27ea → tun-5f58 → tun-8218 → tun-2ddf (LSP fix)

Notes on Issue #314

This plan fully resolves issue #314 Violation 1 (tools/glob.py → indexing) by deleting the entire indexing system rather than refactoring around it.

The other two violations (Violations 2 and 3) remain separate tickets:

• tun-2ddf: Merge tools/lsp_status.py into core
• tun-be3d: Remove LSP import from decorators