core/docs/adr/ADR-0145-energy-modulated-surface-readback.md
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docs: reorganize docs landscape
Implements the 4-phase documentation reorganization master plan.

- Consolidation: Merged brief/, handoff/, planning/, and decisions/ into briefs/, handoffs/, plans/, and adr/ respectively (101 ADRs relocated)
- Root Cleanup: Relocated HANDOFF-gpt55-*.md and key top-level docs (runtime_contracts.md, etc.) to canonical folders. Added superseded alerts.
- Indices & Navigation: Created docs/README.md navigation document, docs/sessions/README.md index, docs/adr/README.md index
- Note: Also includes prior commit adding ADR-0200+ corpus hygiene governance (ADR-0225, dependency map, backfilled cross-references)
2026-06-30 16:59:36 -07:00

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# ADR-0145: Energy-Modulated Vault Surface Readback
**Status:** Accepted
**Date:** 2026-05-25
**Related:** ADR-0006 (field energy operator), ADR-0004 (vault), W-004 (rethaw), W-005
---
## Context
ADR-0006 §Integration Points specifies that surface readback should be modulated
by the energy class of the grounding source. W-004 (PR #251) landed vault
re-thaw to E2 — every vault recall result carries
`energy_profile.energy_class = EnergyClass.E2`.
Despite this, the surface realization path was ignoring `energy_profile`
entirely. The energy class was stamped onto recall results but never reached
the output surface, violating the ADR-0006 specification.
---
## Decision
1. **`energy_modulated_surface(base, energy_class)`** added to
`generate/realizer.py`. Prefix table (ADR-0006 §Integration Points):
| Energy Class | Prefix |
|---|---|
| E0 | `"From memory: "` |
| E1 | `"I seem to recall: "` |
| E2 | `"I recall: "` |
| E3, E4 | *(none — pass through)* |
Empty base string passes through unchanged.
2. **`recall_energy_class: str | None`** added to `CognitiveTurnResult`
(`core/cognition/result.py`) and to `_ChatState` / `ChatResponse`
(`chat/runtime.py`).
3. **Wiring in `chat/runtime.py`**: `_recall_energy_class_from_hits()` reads
the energy class from the top vault hit. On the vault path
(`main_grounding_source == "vault"`), `energy_modulated_surface()` is
applied and the result replaces `response_surface`.
4. **Scope**: modulation applies only on `grounding_source == "vault"`.
Pack-grounded and teaching-grounded surfaces are not affected.
---
## What is NOT in scope
- E3/E4 vault paths (no current pathway rethaws to these classes).
- `readback_from_intent` rules in `packs/common/runtime_rules.py` — deferred
to W-006.
---
## Consequences
- Vault-grounded turns (always E2 post-rethaw) are prefixed with `"I recall: "`.
- `recall_energy_class` is inspectable on `ChatResponse` for telemetry and
testing.
- No change to trace hash or determinism: the prefix is applied after the
articulation surface is committed for hashing.
---
## References
- **ADR-0006**: Field Energy Operator
- **ADR-0004**: Vault Design
- **W-004** (PR #251): vault re-thaw to E2