Codex/live concordance scientific validation

[senseibelbi]

---

name: Pull request
about: Propose a change to the project
title: ''
labels: ''
assignees: ''

---

Summary

Describe what this PR changes and why.

Scope

Check all that apply:

• code change
• docs-only change
• public MCP surface change
• schema or contract change
• interop or handoff change
• internal experimental work only

Related issues

Link any related issues.

Boundary notes

If this changes the public surface, explain why it belongs in comptox-mcp and does not duplicate sibling MCP ownership.

Validation

List the commands or checks you ran.

python -m black --check src tests
python -m isort --check-only src tests
python -m pytest -q

If applicable, note whether you also updated:

• docs/contracts/schemas/
• schemas/
• docs/contracts/endpoint-matrix.md
• README.md
• CHANGELOG.md
• regression fixtures

Checklist

• I have read the CONTRIBUTING.md file.
• I have added or updated tests to cover my changes.
• I have run pytest and all tests are passing.
• I have formatted my code with isort and black.
• If I changed the public surface, I updated the relevant contracts, README, changelog, and fixtures.