EPIC: Context Tier Storage — Hot/Warm/Cold Storage Implementation (ACMS v3.4.0) #5165

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opened 2026-04-09 02:57:20 +00:00 by HAL9000 · 2 comments
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Background

Part of the ACMS (Advanced Context Management System) Legendary (#4943). This Epic implements the three-tier storage system for context data: hot (in-memory), warm (local disk), and cold (compressed/archived) tiers that enable CleverAgents to work with large codebases (10,000+ files) without memory exhaustion.

Demonstrable Capability

When this Epic is complete, context data can be stored and retrieved across hot/warm/cold tiers with automatic promotion/demotion based on access patterns and budget constraints.

Child Issues

  • Implement ContextTierStorage base class and hot-tier in-memory store
  • Implement warm-tier disk-based storage with LRU eviction
  • Implement cold-tier compressed archive storage
  • Implement tier promotion/demotion logic based on access frequency
  • Add agents context tier CLI commands (list, stats, flush)

Definition of Done

  • All child issues are closed and merged
  • Hot/warm/cold tiers operational with configurable size limits
  • Tier promotion/demotion works automatically
  • agents context tier CLI commands functional
  • All nox stages pass
  • Coverage >= 97%

Metadata

  • Branch Naming Convention: feat/v3.4.0/acms-tier-storage
  • Milestone: v3.4.0
  • Parent Legendary: #4943

Automated by CleverAgents Bot
Supervisor: Epic Planning | Agent: epic-planner

## Background Part of the ACMS (Advanced Context Management System) Legendary (#4943). This Epic implements the three-tier storage system for context data: hot (in-memory), warm (local disk), and cold (compressed/archived) tiers that enable CleverAgents to work with large codebases (10,000+ files) without memory exhaustion. ## Demonstrable Capability When this Epic is complete, context data can be stored and retrieved across hot/warm/cold tiers with automatic promotion/demotion based on access patterns and budget constraints. ## Child Issues <!-- Updated by automation after child issues are created --> - [ ] Implement `ContextTierStorage` base class and hot-tier in-memory store - [ ] Implement warm-tier disk-based storage with LRU eviction - [ ] Implement cold-tier compressed archive storage - [ ] Implement tier promotion/demotion logic based on access frequency - [ ] Add `agents context tier` CLI commands (list, stats, flush) ## Definition of Done - [ ] All child issues are closed and merged - [ ] Hot/warm/cold tiers operational with configurable size limits - [ ] Tier promotion/demotion works automatically - [ ] `agents context tier` CLI commands functional - [ ] All nox stages pass - [ ] Coverage >= 97% ## Metadata - **Branch Naming Convention**: `feat/v3.4.0/acms-tier-storage` - **Milestone**: v3.4.0 - **Parent Legendary**: #4943 --- **Automated by CleverAgents Bot** Supervisor: Epic Planning | Agent: epic-planner
HAL9000 added this to the v3.4.0 milestone 2026-04-09 02:58:02 +00:00
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Issue triaged by project owner:

  • State: Verified
  • Priority: High — context tier storage (hot/warm/cold) is the foundational layer of ACMS
  • Milestone: v3.4.0 (already assigned)
  • Story Points: 13 (XXL) — three-tier storage implementation
  • MoSCoW: Must Have — without tier storage, ACMS cannot function at all
  • Parent Epic: LEGENDARY #4943 (Advanced Context Management System)

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

Issue triaged by project owner: - **State**: Verified - **Priority**: High — context tier storage (hot/warm/cold) is the foundational layer of ACMS - **Milestone**: v3.4.0 (already assigned) - **Story Points**: 13 (XXL) — three-tier storage implementation - **MoSCoW**: Must Have — without tier storage, ACMS cannot function at all - **Parent Epic**: LEGENDARY #4943 (Advanced Context Management System) --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner
Author
Owner

Child Issues Created: All 5 implementation issues have been created and linked.

Child Issues

  • #5208 — feat(context): implement ContextTierStorage base class and hot-tier in-memory store (start here)
  • #5209 — feat(context): implement warm-tier disk-based storage with LRU eviction (depends on #5208)
  • #5210 — feat(context): implement cold-tier compressed archive storage (depends on #5209)
  • #5211 — feat(context): implement tier promotion/demotion logic based on access frequency (depends on #5210)
  • #5212 — feat(context): add agents context tier CLI commands (list, stats, flush) (depends on #5211)

Dependency Chain

#5208 Hot Tier → #5209 Warm Tier → #5210 Cold Tier → #5211 TierManager → #5212 CLI

All issues block this Epic (#5165), which blocks Legendary #4943 (ACMS).


Automated by CleverAgents Bot
Supervisor: Epic Planning | Agent: epic-planner

**Child Issues Created**: All 5 implementation issues have been created and linked. ## Child Issues - [ ] #5208 — feat(context): implement ContextTierStorage base class and hot-tier in-memory store *(start here)* - [ ] #5209 — feat(context): implement warm-tier disk-based storage with LRU eviction *(depends on #5208)* - [ ] #5210 — feat(context): implement cold-tier compressed archive storage *(depends on #5209)* - [ ] #5211 — feat(context): implement tier promotion/demotion logic based on access frequency *(depends on #5210)* - [ ] #5212 — feat(context): add agents context tier CLI commands (list, stats, flush) *(depends on #5211)* ## Dependency Chain ``` #5208 Hot Tier → #5209 Warm Tier → #5210 Cold Tier → #5211 TierManager → #5212 CLI ``` All issues block this Epic (#5165), which blocks Legendary #4943 (ACMS). --- **Automated by CleverAgents Bot** Supervisor: Epic Planning | Agent: epic-planner
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Reference
cleveragents/cleveragents-core#5165
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