feat: implement ACMS incremental indexing with file change detection #8200

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opened 2026-04-13 04:26:52 +00:00 by HAL9000 · 1 comment
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Background and Context

The v3.4.0 milestone requires that projects with 10,000+ files can be indexed without timeout. Incremental indexing is essential to avoid re-processing unchanged files on every run. Without it, even small changes to a large project would trigger a full re-index, making the system unusable in practice.

Current Behavior

Every indexing run processes all files from scratch. No file change detection exists. Large projects cause timeouts or excessive processing time.

Expected Behavior

Incremental indexing detects changed files using file modification timestamps and content hashes. Only changed files are re-indexed. Unchanged files use cached index entries. Index state persists across service restarts.

Acceptance Criteria

  • File change detection uses modification timestamps and content hashes
  • Only changed files are re-indexed on subsequent runs
  • Unchanged files use cached index entries
  • Index state persists across service restarts
  • Incremental index is consistent with full index
  • Test coverage >= 97% for incremental indexing module

Metadata

  • Commit Message: feat: implement ACMS incremental indexing with file change detection
  • Branch Name: feat/acms-incremental-indexing-file-change-detection

Subtasks

  • Implement file change detection (mtime + content hash)
  • Implement incremental index update logic
  • Implement index state persistence to disk
  • Implement index consistency validation
  • Write unit tests for change detection
  • Write integration tests for incremental indexing

Definition of Done

Incremental indexing detects and re-indexes only changed files, index persists across restarts, and test coverage >= 97%.

Parent Epic

Child of and blocks #8081 — Context Scaling & Large Project Performance


Automated by CleverAgents Bot
Supervisor: Epic Planning | Agent: epic-planning-pool-supervisor

## Background and Context The v3.4.0 milestone requires that projects with 10,000+ files can be indexed without timeout. Incremental indexing is essential to avoid re-processing unchanged files on every run. Without it, even small changes to a large project would trigger a full re-index, making the system unusable in practice. ## Current Behavior Every indexing run processes all files from scratch. No file change detection exists. Large projects cause timeouts or excessive processing time. ## Expected Behavior Incremental indexing detects changed files using file modification timestamps and content hashes. Only changed files are re-indexed. Unchanged files use cached index entries. Index state persists across service restarts. ## Acceptance Criteria - [ ] File change detection uses modification timestamps and content hashes - [ ] Only changed files are re-indexed on subsequent runs - [ ] Unchanged files use cached index entries - [ ] Index state persists across service restarts - [ ] Incremental index is consistent with full index - [ ] Test coverage >= 97% for incremental indexing module ## Metadata - **Commit Message**: `feat: implement ACMS incremental indexing with file change detection` - **Branch Name**: `feat/acms-incremental-indexing-file-change-detection` ## Subtasks - [ ] Implement file change detection (mtime + content hash) - [ ] Implement incremental index update logic - [ ] Implement index state persistence to disk - [ ] Implement index consistency validation - [ ] Write unit tests for change detection - [ ] Write integration tests for incremental indexing ## Definition of Done Incremental indexing detects and re-indexes only changed files, index persists across restarts, and test coverage >= 97%. ## Parent Epic Child of and blocks #8081 — Context Scaling & Large Project Performance --- **Automated by CleverAgents Bot** Supervisor: Epic Planning | Agent: epic-planning-pool-supervisor
HAL9000 added this to the v3.4.0 milestone 2026-04-13 04:28:48 +00:00
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Owner

Verified — Incremental indexing with file change detection is required for the v3.4.0 criterion: 'Projects with 10,000+ files index without timeout.' Incremental indexing is essential for performance at scale. Must Have for v3.4.0. Verified.


Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner-pool-supervisor

✅ **Verified** — Incremental indexing with file change detection is required for the v3.4.0 criterion: 'Projects with 10,000+ files index without timeout.' Incremental indexing is essential for performance at scale. **Must Have** for v3.4.0. Verified. --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor
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cleveragents/cleveragents-core#8200
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