# Session Handoff — ADR-0.0.26 OBPI-02 Complete

**Date:** 2026-05-03
**Operator:** Jeffry Babb
**Session scope:** OBPI-0.0.26-02-justify-binding-gate — full pipeline execution

## Completed This Session

### OBPI-0.0.26-02-justify-binding-gate — `attested_completed`

Implemented the fail-closed `gz validate --evaluation-justify-binding` gate per ADR-0.0.26 Decision #2.

**Files created:**
- `data/eval_feedback_thresholds.json` — configurable thresholds (`low_score_threshold: 3.0`, `red_team_count_threshold: 3`)
- `src/gzkit/governance/trust_audits/evaluation_justify_binding.py` — validator module: reads thresholds, finds most-recent `adr-evaluation` ledger event, fails closed if trigger fires and no `artifacts/justify/<artifact-id>*` file present
- `tests/governance/test_justify_binding_gate.py` — 6 TDD tests (5 REQ-decorated + edge case), all green

**Files modified:**
- `src/gzkit/governance/trust_audits/__init__.py` — re-export `validate_evaluation_justify_binding`
- `src/gzkit/commands/validate_cmd.py` — added `check_evaluation_justify_binding` param, `evaluation_justify_binding` to `explicit_scopes`/`opt_in_scopes`, `_evaluation_justify_binding_runner` helper
- `src/gzkit/cli/parser_maintenance.py` — registered `--evaluation-justify-binding` flag
- `src/gzkit/lifecycle.py` — lifecycle gate fires before advancing past `Pending`/`Draft`
- `docs/user/commands/validate.md` — added `### --evaluation-justify-binding` section + table row

**Verification receipts:**
- lint: arb-ruff receipt (Stage 3)
- typecheck: arb-step-typecheck receipt (Stage 3)
- unittest: all 4021 tests pass (Stage 3)
- covers: `gz covers OBPI-0.0.26-02` → 5/5 REQs, 0 uncovered

**Known defect:** Stale `/tmp/obpi-attestation.txt` on Windows caused wrong attestation text to be recorded in `gz obpi complete` (OBPI-0.0.24-04 text instead of OBPI-0.0.26-02). Completion succeeded as `attested_completed`; insight logged to `.gzkit/insights/agent-insights.jsonl`. Recommendation: use project-relative temp path (`.claude/plans/.obpi-attestation.txt`) in future Stage 5 invocations.

## ADR-0.0.26 Remaining OBPIs

| # | OBPI | Status | Description |
|---|------|--------|-------------|
| 03 | OBPI-0.0.26-03-clustering-chore | pending | `eval-feedback-cluster` chore — cluster adr-evaluation events by artifact |
| 04 | OBPI-0.0.26-04-ghi-promotion-and-trailer | pending | GHI authoring + `Eval-feedback-source` commit trailer + `gz validate --commit-trailers` extension |
| 05 | OBPI-0.0.26-05-bdd-coverage | pending | BDD coverage for all ADR-0.0.26 REQs |

**ADR-0.0.26 state:** 2/5 OBPIs complete, lifecycle=Pending, pre_closeout, BLOCKED on OBPIs 03-05.

## Resume Instructions

Next session: execute OBPI-0.0.26-03 (`/gz-obpi-pipeline OBPI-0.0.26-03`).

OBPIs 03, 04, 05 must all complete before ADR-0.0.26 can close out. BDD (OBPI-05) likely depends on 03 and 04 implementation landing first.

## Artifacts in Scope

- Parent ADR: `docs/design/adr/foundation/ADR-0.0.26-evaluation-feedback-loop-doctrine/`
- OBPI briefs: `docs/design/adr/foundation/ADR-0.0.26-evaluation-feedback-loop-doctrine/obpis/`
- Plan receipt: `.claude/plans/.plan-audit-receipt-OBPI-0.0.26-02-justify-binding-gate.json` (PASS, 0 gaps)

## Pre-existing Defects Noted (Not Blocking)

5 pre-existing test failures unrelated to OBPI-02: `test_skill_manpage_coverage`, `test_product_proof`, `test_instruction_audit`. Confirmed pre-existing via stash round-trip in OBPI-0.0.24 session; logged in insights.
