feat(context): implement ContextTierStorage base class and hot-tier in-memory store #5208

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opened 2026-04-09 03:24:01 +00:00 by HAL9000 · 1 comment
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Background

Part of Epic #5165 (Context Tier Storage). Implements the ContextTierStorage abstract base class and the hot-tier in-memory store that holds frequently accessed context data.

Expected Behavior

  • ContextTierStorage ABC defines get(), put(), evict(), stats() interface
  • HotTierStorage implements in-memory LRU cache with configurable max size
  • Hot tier respects context_max_tokens_hot setting from Settings
  • Stats report current size, hit rate, and eviction count

Subtasks

  • Define ContextTierStorage ABC in src/cleveragents/context/tier_storage.py
  • Implement HotTierStorage with LRU eviction using functools.lru_cache or cachetools
  • Add context_max_tokens_hot to Settings with spec-correct default
  • Write Behave unit tests for hot tier operations
  • Write Robot Framework integration test for tier storage

Definition of Done

  • ContextTierStorage ABC defined with full interface
  • HotTierStorage functional with LRU eviction
  • context_max_tokens_hot setting works correctly
  • All nox stages pass
  • Coverage >= 97%

Metadata

  • Branch: feat/v3.4.0/acms-hot-tier-storage
  • Commit Message: feat(context): implement ContextTierStorage ABC and hot-tier in-memory LRU store
  • Milestone: v3.4.0
  • Parent Epic: #5165

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

## Background Part of Epic #5165 (Context Tier Storage). Implements the `ContextTierStorage` abstract base class and the hot-tier in-memory store that holds frequently accessed context data. ## Expected Behavior - `ContextTierStorage` ABC defines `get()`, `put()`, `evict()`, `stats()` interface - `HotTierStorage` implements in-memory LRU cache with configurable max size - Hot tier respects `context_max_tokens_hot` setting from `Settings` - Stats report current size, hit rate, and eviction count ## Subtasks - [ ] Define `ContextTierStorage` ABC in `src/cleveragents/context/tier_storage.py` - [ ] Implement `HotTierStorage` with LRU eviction using `functools.lru_cache` or `cachetools` - [ ] Add `context_max_tokens_hot` to `Settings` with spec-correct default - [ ] Write Behave unit tests for hot tier operations - [ ] Write Robot Framework integration test for tier storage ## Definition of Done - [ ] `ContextTierStorage` ABC defined with full interface - [ ] `HotTierStorage` functional with LRU eviction - [ ] `context_max_tokens_hot` setting works correctly - [ ] All nox stages pass - [ ] Coverage >= 97% ## Metadata - **Branch**: `feat/v3.4.0/acms-hot-tier-storage` - **Commit Message**: `feat(context): implement ContextTierStorage ABC and hot-tier in-memory LRU store` - **Milestone**: v3.4.0 - **Parent Epic**: #5165 --- **Automated by CleverAgents Bot** Supervisor: Epic Planning | Agent: epic-planner
HAL9000 added this to the v3.4.0 milestone 2026-04-09 03:24:38 +00:00
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Owner

Issue triaged by project owner:

  • State: Verified
  • Priority: High — ACMS context tier implementation is required for v3.4.0 milestone
  • Story Points: 5 (L) — substantial implementation work for each tier component
  • MoSCoW: Must Have — context tier storage is foundational for ACMS
  • Parent Epic: EPIC #5165 (Context Tier Storage — Hot/Warm/Cold Storage Implementation)

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

Issue triaged by project owner: - **State**: Verified - **Priority**: High — ACMS context tier implementation is required for v3.4.0 milestone - **Story Points**: 5 (L) — substantial implementation work for each tier component - **MoSCoW**: Must Have — context tier storage is foundational for ACMS - **Parent Epic**: EPIC #5165 (Context Tier Storage — Hot/Warm/Cold Storage Implementation) --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner
HAL9000 self-assigned this 2026-04-09 03:31:12 +00:00
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Reference
cleveragents/cleveragents-core#5208
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