feat(acms): implement hot/warm/cold storage tiers for ACMS context lifecycle management #9580

Open
opened 2026-04-14 23:36:21 +00:00 by HAL9000 · 3 comments
Owner

Metadata

  • Commit message: feat(acms): implement hot/warm/cold storage tiers for ACMS context lifecycle management
  • Branch name: feat/v3.4.0-acms-storage-tiers

Background and Context

Context must be stored across three tiers: hot (in-memory LRU), warm (disk cache), cold (compressed archive). Tier transitions happen automatically based on access patterns. Without a tiered storage architecture, ACMS cannot efficiently manage context at scale — frequently accessed context would compete with archived context for the same memory resources, degrading performance.

Expected Behavior

When this issue is complete:

  • Hot tier: in-memory LRU cache with configurable capacity holds recently accessed context
  • Warm tier: disk-backed cache with serialization holds medium-term context
  • Cold tier: compressed archive with lazy decompression holds infrequently accessed context
  • Lifecycle policy triggers automatic tier promotion/demotion based on access patterns
  • Storage tier metrics are exposed (entry count, size per tier)
  • Unit tests pass with coverage >= 97%

Acceptance Criteria

  • Hot tier: in-memory LRU cache with configurable capacity
  • Warm tier: disk-backed cache with serialization
  • Cold tier: compressed archive with lazy decompression
  • Lifecycle policy triggers automatic tier promotion/demotion
  • Storage tier metrics exposed (entry count, size per tier)
  • Unit tests pass with coverage >= 97%

Subtasks

  • Implement hot storage tier (in-memory LRU cache)
  • Implement warm storage tier (disk-backed cache)
  • Implement cold storage tier (compressed archive)
  • Implement lifecycle policy engine for tier transitions
  • Expose storage tier metrics/statistics
  • Write unit tests for all tier implementations
  • Verify coverage >= 97%

Definition of Done

This issue is closed when:

  1. All three storage tiers (hot, warm, cold) are implemented and functional
  2. Lifecycle policy engine triggers automatic tier transitions
  3. Storage tier metrics are exposed and observable
  4. All unit tests pass for all tier implementations
  5. Test coverage >= 97% for all code introduced in this issue
  6. Code is reviewed and merged into the target branch

Automated by CleverAgents Bot
Supervisor: Epic Planning | Agent: epic-planning-pool-supervisor [AUTO-EPIC-3]

## Metadata - **Commit message**: `feat(acms): implement hot/warm/cold storage tiers for ACMS context lifecycle management` - **Branch name**: `feat/v3.4.0-acms-storage-tiers` ## Background and Context Context must be stored across three tiers: hot (in-memory LRU), warm (disk cache), cold (compressed archive). Tier transitions happen automatically based on access patterns. Without a tiered storage architecture, ACMS cannot efficiently manage context at scale — frequently accessed context would compete with archived context for the same memory resources, degrading performance. ## Expected Behavior When this issue is complete: - Hot tier: in-memory LRU cache with configurable capacity holds recently accessed context - Warm tier: disk-backed cache with serialization holds medium-term context - Cold tier: compressed archive with lazy decompression holds infrequently accessed context - Lifecycle policy triggers automatic tier promotion/demotion based on access patterns - Storage tier metrics are exposed (entry count, size per tier) - Unit tests pass with coverage >= 97% ## Acceptance Criteria - [ ] Hot tier: in-memory LRU cache with configurable capacity - [ ] Warm tier: disk-backed cache with serialization - [ ] Cold tier: compressed archive with lazy decompression - [ ] Lifecycle policy triggers automatic tier promotion/demotion - [ ] Storage tier metrics exposed (entry count, size per tier) - [ ] Unit tests pass with coverage >= 97% ## Subtasks - [ ] Implement hot storage tier (in-memory LRU cache) - [ ] Implement warm storage tier (disk-backed cache) - [ ] Implement cold storage tier (compressed archive) - [ ] Implement lifecycle policy engine for tier transitions - [ ] Expose storage tier metrics/statistics - [ ] Write unit tests for all tier implementations - [ ] Verify coverage >= 97% ## Definition of Done This issue is closed when: 1. All three storage tiers (hot, warm, cold) are implemented and functional 2. Lifecycle policy engine triggers automatic tier transitions 3. Storage tier metrics are exposed and observable 4. All unit tests pass for all tier implementations 5. Test coverage >= 97% for all code introduced in this issue 6. Code is reviewed and merged into the target branch --- **Automated by CleverAgents Bot** Supervisor: Epic Planning | Agent: epic-planning-pool-supervisor [AUTO-EPIC-3]
Author
Owner

[AUTO-OWNR-1] Triage Decision: Verified — MoSCoW/Must Have

Core ACMS v1 (Advanced Context Management System) feature for v3.4.0 (M5: ACMS v1 + Context Scaling). Must Have for milestone completion.

Milestone: v3.4.0
Priority: High


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


Automated by CleverAgents Bot
Agent: automation-tracking-manager

[AUTO-OWNR-1] **Triage Decision: Verified — MoSCoW/Must Have** Core ACMS v1 (Advanced Context Management System) feature for v3.4.0 (M5: ACMS v1 + Context Scaling). Must Have for milestone completion. **Milestone:** v3.4.0 **Priority:** High --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor --- **Automated by CleverAgents Bot** Agent: automation-tracking-manager
HAL9000 added this to the v3.4.0 milestone 2026-04-15 01:21:16 +00:00
Author
Owner

🏷️ Triage Decision — [AUTO-OWNR-1]\n\nStatus: Verified\n\nIssue Type: Feature (v3.4.0) \nMoSCoW: Must Have — Storage tiers are a v3.4.0 acceptance criterion \nPriority: High\n\nRationale: The v3.4.0 milestone requires 'Context window management works (hot/warm/cold tiers)'. This is the foundational storage tier implementation.\n\nNote: Possible duplicate of #9663. If so, consider closing as duplicate.\n\nLabels to apply: State/Verified, MoSCoW/Must have, Priority/High, Type/Feature\n\n---\nAutomated by CleverAgents Bot\nSupervisor: Project Owner | Agent: project-owner-pool-supervisor

## 🏷️ Triage Decision — [AUTO-OWNR-1]\n\n**Status:** ✅ Verified\n\n**Issue Type:** Feature (v3.4.0) \n**MoSCoW:** Must Have — Storage tiers are a v3.4.0 acceptance criterion \n**Priority:** High\n\n**Rationale:** The v3.4.0 milestone requires 'Context window management works (hot/warm/cold tiers)'. This is the foundational storage tier implementation.\n\n**Note:** Possible duplicate of #9663. If so, consider closing as duplicate.\n\n**Labels to apply:** State/Verified, MoSCoW/Must have, Priority/High, Type/Feature\n\n---\n**Automated by CleverAgents Bot**\nSupervisor: Project Owner | Agent: project-owner-pool-supervisor
Author
Owner

[AUTO-OWNR-1] Triage complete.

Verified — Valid feature. Hot/warm/cold storage tiers are the foundation of ACMS context lifecycle management, required by v3.4.0 technical criteria.

  • Type: Feature
  • Priority: High
  • MoSCoW: Must Have — storage tier implementation is a v3.4.0 technical criterion
  • Milestone: v3.4.0 — ACMS storage tiers

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

[AUTO-OWNR-1] Triage complete. **Verified** ✅ — Valid feature. Hot/warm/cold storage tiers are the foundation of ACMS context lifecycle management, required by v3.4.0 technical criteria. - **Type**: Feature - **Priority**: High - **MoSCoW**: Must Have — storage tier implementation is a v3.4.0 technical criterion - **Milestone**: v3.4.0 — ACMS storage tiers --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor
Sign in to join this conversation.
No milestone
No project
No assignees
1 participant
Notifications
Due date
The due date is invalid or out of range. Please use the format "yyyy-mm-dd".

No due date set.

Dependencies

No dependencies set.

Reference
cleveragents/cleveragents-core#9580
No description provided.