Files
cleveragents-core/features
brent.edwards 202c9bfe75 test(acms): TDD failing tests for context tier runtime logic (bug #821) (#1058)
## Summary

TDD expected-fail tests proving bug #821 exists: `ContextTierService` has data models for hot/warm/cold tiers but **no runtime logic** for automatic promotion, demotion, or eviction.

- **Promotion on access**: Accessing a cold-tier fragment repeatedly via `get()` does NOT auto-promote it — `get()` updates `access_count`/`last_accessed` but never calls `promote()`
- **Demotion on staleness**: No staleness enforcement method exists — tried `enforce_staleness()`, `apply_tier_policy()`, `tick()`, etc. — none are implemented
- **Eviction on budget overflow**: `store()` does NOT enforce `TierBudget.max_tokens_hot` — the hot tier grows without bound

### Files Added
| File | Purpose |
|------|---------|
| `features/tdd_context_tier_runtime.feature` | 3 Behave scenarios tagged `@tdd_expected_fail @tdd_bug @tdd_bug_821 @mock_only` |
| `features/steps/tdd_context_tier_runtime_steps.py` | Type-annotated step definitions exercising real `ContextTierService` |
| `robot/tdd_context_tier_runtime.robot` | 3 Robot Framework integration tests tagged `tdd_expected_fail` |
| `robot/helper_tdd_context_tier_runtime.py` | Helper script for Robot tests with 3 subcommands |

### Verification
- `nox -s lint` — passed
- `nox -s typecheck` — passed (0 errors)
- `nox -s unit_tests -- features/tdd_context_tier_runtime.feature` — **3 scenarios passed** (all assertions fail as expected, `@tdd_expected_fail` inverts to CI pass)

ISSUES CLOSED: #840

Reviewed-on: cleveragents/cleveragents-core#1058
Co-authored-by: Brent Edwards <brent.edwards@cleverthis.com>
Co-committed-by: Brent Edwards <brent.edwards@cleverthis.com>
2026-03-19 22:24:41 +00:00
..
2026-02-23 03:11:12 +00:00