feat: implement ACMS hot/warm/cold storage tier management for context lifecycle #8199

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opened 2026-04-13 04:26:45 +00:00 by HAL9000 · 1 comment
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Background and Context

The ACMS v1 pipeline requires hot/warm/cold storage tiers to manage context lifecycle. Hot storage holds frequently accessed context in memory for fast retrieval. Warm storage holds recently accessed context on disk. Cold storage archives infrequently accessed context. Without tier management, all context is treated equally, leading to memory pressure and slow retrieval.

Current Behavior

No storage tier management exists. All context is stored in a single tier without lifecycle management.

Expected Behavior

Hot tier stores frequently accessed context in memory with configurable capacity. Warm tier stores recently accessed context on disk. Cold tier archives infrequently accessed context. Tier promotion/demotion happens automatically based on access patterns.

Acceptance Criteria

  • Hot tier stores context in memory with configurable capacity
  • Warm tier stores context on disk
  • Cold tier archives infrequently accessed context
  • Tier promotion/demotion happens automatically based on access patterns
  • Tier capacities are configurable via context policy
  • Test coverage >= 97% for storage tier management

Metadata

  • Commit Message: feat: implement ACMS hot warm cold storage tier management
  • Branch Name: feat/acms-storage-tier-management-hot-warm-cold

Subtasks

  • Design storage tier data model and promotion/demotion rules
  • Implement hot tier (in-memory) with LRU eviction
  • Implement warm tier (on-disk) with file-based storage
  • Implement cold tier (archive) with compression
  • Implement automatic tier promotion/demotion
  • Write unit tests for tier management
  • Write integration tests for tier lifecycle

Definition of Done

Hot/warm/cold storage tiers are implemented, automatic promotion/demotion works, and test coverage >= 97%.

Parent Epic

Child of and blocks #8080 — ACMS v1 Core Context Assembly Pipeline


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

## Background and Context The ACMS v1 pipeline requires hot/warm/cold storage tiers to manage context lifecycle. Hot storage holds frequently accessed context in memory for fast retrieval. Warm storage holds recently accessed context on disk. Cold storage archives infrequently accessed context. Without tier management, all context is treated equally, leading to memory pressure and slow retrieval. ## Current Behavior No storage tier management exists. All context is stored in a single tier without lifecycle management. ## Expected Behavior Hot tier stores frequently accessed context in memory with configurable capacity. Warm tier stores recently accessed context on disk. Cold tier archives infrequently accessed context. Tier promotion/demotion happens automatically based on access patterns. ## Acceptance Criteria - [ ] Hot tier stores context in memory with configurable capacity - [ ] Warm tier stores context on disk - [ ] Cold tier archives infrequently accessed context - [ ] Tier promotion/demotion happens automatically based on access patterns - [ ] Tier capacities are configurable via context policy - [ ] Test coverage >= 97% for storage tier management ## Metadata - **Commit Message**: `feat: implement ACMS hot warm cold storage tier management` - **Branch Name**: `feat/acms-storage-tier-management-hot-warm-cold` ## Subtasks - [ ] Design storage tier data model and promotion/demotion rules - [ ] Implement hot tier (in-memory) with LRU eviction - [ ] Implement warm tier (on-disk) with file-based storage - [ ] Implement cold tier (archive) with compression - [ ] Implement automatic tier promotion/demotion - [ ] Write unit tests for tier management - [ ] Write integration tests for tier lifecycle ## Definition of Done Hot/warm/cold storage tiers are implemented, automatic promotion/demotion works, and test coverage >= 97%. ## Parent Epic Child of and blocks #8080 — ACMS v1 Core Context Assembly Pipeline --- **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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Verified — Hot/warm/cold storage tier management is an explicit v3.4.0 technical criterion: 'Context window management works (hot/warm/cold tiers).' Must Have for v3.4.0. Verified.


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

✅ **Verified** — Hot/warm/cold storage tier management is an explicit v3.4.0 technical criterion: 'Context window management works (hot/warm/cold tiers).' **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#8199
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