# Round 04 CCRA Review Brief

Date: 2026-06-18

Repository: `C:\Users\wangq\Documents\Codex\work-projects\the-mindscape-of-bro-tsong`

Round: `04`

Topic: Blind input routing evaluation

## 1. Review Goal

Round 04 tests whether the current rule-based selector, QPI routing contract, and Intellectual Archaeology gate behave stably on new inputs.

This is a routing evaluation only. It does not evaluate final answer quality.

## 2. What Changed

- Updated `reports/Round04_blind_input_candidates_2026-06-18.md` from owner review notes.
- Added frozen blind input pool: `selector/round04_blind_inputs.json`.
- Added standard-library runner: `scripts/run_round04_blind_routing.py`.
- Added tests for the runner: `tests/test_round04_blind_routing.py`.
- Ran the first blind routing pass and wrote `reports/Round04_blind_routing_evaluation_report_2026-06-18.md`.

## 3. What Did Not Change

- `selector/selector_rules.json` was not modified.
- QPI and Intellectual Archaeology model JSON lifecycle status was not upgraded.
- No third model was added.
- No LLM selector, RAG, vector database, frontend, backend, account system, or QA product was introduced.
- No expected routing labels were added before the first blind run.

## 4. Files To Read

1. `01_ROUND03_CLOSURE_AND_ROUND04_SCOPE_04.md`
2. `02_BLIND_INPUT_SET_04.md`
3. `03_ROUTING_EVALUATION_REPORT_04.md`
4. `04_REVIEW_QUESTIONS_FOR_GPT_04.md`

The optional raw zip contains source-relative files for exact inspection.
