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Remaining Work - PR #2205 Gap Analysis

Generated: 2025-11-11
Current HEAD: 04fcefc (Fix P1: keep_last checkpoint retention leak in best-k)
Status: P1 fixes complete (6/6), Iteration 1-3 implementation complete (100%), Gap items in progress

Summary

All P1 bugs fixed and all components from Iterations 1-3 implemented. This document tracks the remaining gap items to reach 99-100 target score and complete all acceptance gates.

Gap Table Status

Area Current State Remaining To Do Acceptance Criteria Priority Status
Tests Coverage Regression tests added (8 tests); target ≥95% set Generate coverage report; verify per-file thresholds; plan for 96-99% pytest-cov XML/HTML; ≥95% on new/changed modules HIGH 🔄 READY
Lint/Style Minor fixes applied; E501/E402/E741 pending One-shot repo-wide E501 fix; targeted E402; rename E741 ruff/black clean; no new warnings MEDIUM 📋 PLANNED
Type Checking Type hints present; not executed Run mypy on src/; address typing gaps mypy passes; report attached MEDIUM 📋 PLANNED
Security Gate Nox session unified; allowlist present Run nox -s security; attach artifacts/security_report.json No HIGH/CRITICAL unallowlisted HIGH 🔄 READY
Determinism CLI compare supports check Add cross-process repro tests; env snapshot Determinism proof; env snapshot artifact MEDIUM 📋 PLANNED
Config Validator Fixed + tested; nox session added Run nox -s validate-configs in verification Session green; logs attached HIGH 🔄 READY
AST CLI Implemented with tests Verify --json output; stable exit codes Integration tests pass MEDIUM ✅ DONE
Artifacts IMPLEMENTATION_STATUS.md created Generate coverage.xml, security_report.json, validation logs All artifacts committed/attached HIGH 🔄 IN PROGRESS

Detailed Action Items

1. Tests Coverage Report (HIGH PRIORITY - READY TO EXECUTE)

Current State: - 8 regression tests added for P1 fixes - All test files pass syntax validation - Target: ≥95% for new/changed modules

Action Items: ```bash

Generate coverage report

nox -s tests # Runs pytest with coverage

Or manually:

pytest --cov=src/codex_ml --cov=src/codex --cov-report=xml --cov-report=html --cov-report=term-missing

Review coverage.xml and htmlcov/index.html

Verify ≥95% on:

- src/codex_ml/evaluation/loop.py

- src/codex_ml/evaluation/cli.py

- src/codex_ml/checkpointing/bestk.py

- src/codex_ml/logging/registry.py

- tools/validate_experiments.py

```text

Acceptance: - coverage.xml artifact generated and committed to artifacts/ - Coverage ≥95% on all new/changed modules - Plan documented for reaching 96-99% in next iteration

2. Security Gate Execution (HIGH PRIORITY - READY TO EXECUTE)

Current State: - Unified nox security session implemented (commit 749b1eb) - Includes: pip-audit + allowlist + bandit + gitleaks - security_allowlist.json present

Action Items: ```bash

Run security scan

nox -s security

This generates artifacts/security_report.json

Verify no HIGH/CRITICAL vulnerabilities (or all allowlisted)

Check bandit and gitleaks outputs

```text

Acceptance: - artifacts/security_report.json generated and committed - No HIGH/CRITICAL vulnerabilities outside allowlist - Bandit and gitleaks scans complete without blocking issues

3. Config Validator Execution (HIGH PRIORITY - READY TO EXECUTE)

Current State: - validate-configs nox session added (commit 749b1eb) - TOML/JSON validation fixed (commits 1341f45, 2dcc361) - Schema exclusion working (commit 2dcc361)

Action Items: ```bash

Run config validator

nox -s validate-configs

Or manually:

python tools/validate_experiments.py \ --schema configs/schemas/experiments.schema.json \ --paths configs/experiments/

Verify validation passes

Check that schema files are excluded

```text

Acceptance: - validate-configs session runs successfully - Validation logs show only config files validated (not schemas) - No false failures

4. Lint/Style Normalization (MEDIUM PRIORITY - PLANNED)

Current State: - Repository follows general style guidelines - Some E501 (line length), E402 (import order), E741 (ambiguous names) remain

Action Items: ```bash

Check current lint status

nox -s lint

Or manually:

ruff check . black --check .

Fix issues:

- E501: Use ruff or black to auto-format long lines

- E402: Move imports to top of file where possible

- E741: Rename ambiguous variable names (l, O, I)

Auto-fix where safe:

ruff check --fix . black . ```text

Acceptance: - ruff check . passes with no errors - black --check . passes - No new warnings introduced

5. Type Checking (MEDIUM PRIORITY - PLANNED)

Current State: - Type hints present in most modules - mypy not yet executed on PR changes

Action Items: ```bash

Run type checker

nox -s typecheck

Or manually:

mypy src/

Address common issues:

- Missing return type annotations

- Protocol implementations

- Optional types

- Any usage reduction

```text

Acceptance: - mypy passes on src/ directory - Type checking report attached to PR - No blocking type errors

6. Determinism Tests (MEDIUM PRIORITY - PLANNED)

Current State: - CLI report command supports --compare for determinism check - Exit code 4 on mismatch

Action Items: ```bash

Create cross-process reproducibility tests

Example in tests/repro/test_determinism.py:

1. Run evaluation twice with same seed

2. Compare outputs byte-for-byte

3. Verify hash equality

Add env snapshot test

Capture environment variables, package versions

Store in artifacts/env_snapshot.json

```text

Acceptance: - Determinism tests pass - env_snapshot.json artifact generated - Proof of reproducibility documented

7. Artifacts Collection (HIGH PRIORITY - IN PROGRESS)

Current State: - IMPLEMENTATION_STATUS.md created - Some artifacts generated

Required Artifacts: text artifacts/ ├── coverage.xml # From pytest-cov ├── htmlcov/ # Coverage HTML report ├── security_report.json # From nox -s security ├── validation_logs.txt # From nox -s validate-configs ├── env_snapshot.json # Environment details └── docs/ # API docs (if SKIP_OPTIONAL=1)text

Acceptance: - All required artifacts generated - Artifacts committed to repository or linked in PR - Artifact checksums documented

Next Steps

Immediate (Can execute now):

  1. ✅ Run nox -s tests and generate coverage report
  2. ✅ Run nox -s security and commit security_report.json
  3. ✅ Run nox -s validate-configs and verify output

Short-term (This iteration):

  1. 📋 Run nox -s lint and fix reported issues
  2. 📋 Run nox -s typecheck and address type errors
  3. 📋 Commit all artifacts to artifacts/ directory

Medium-term (Next iteration - 96-99% target):

  1. 📋 Add determinism tests to tests/repro/
  2. 📋 Add edge case tests to reach 96-99% coverage
  3. 📋 Add golden baseline tests for regression prevention

Notes

  • All P1 bugs are now fixed (6 total)
  • All components from Iterations 1-3 are implemented (100%)
  • Remaining work is primarily validation, documentation, and quality gates
  • No blocking issues preventing merge to 0D_base_
  • Ready for promotion to main after gap items addressed

References

  • Execution Runbook: reports/plans/_codex__ExecutionRunbook_Itr1_to_Itr3.md
  • Implementation Status: IMPLEMENTATION_STATUS.md
  • Gap Table: Comment #3518311364
  • Approval Gate: Comment #3518195426

Last Updated: 2025-11-11 (after commit 04fcefc)