Document Phase 3 rewrite status

docs/rewrite-notes.md

@@ -52,6 +52,46 @@ The Go implementation should preserve the following public behaviors where pract
 - failed-run diagnostics preservation;
 - skipped-change reporting instead of crashing on stale or unsafe proposal application.
 
+## Current Go rewrite status (Phase 3 foundation)
+
+The Go rewrite now includes deterministic foundation pieces needed before real module/LLM behavior:
+
+- typed transcript parsing and validation (bare array or `{ "segments": [...] }`);
+- typed glossary YAML parsing and validation;
+- deterministic transcript normalization and normalization summary;
+- deterministic token estimation;
+- contiguous transcript chunking with section metadata;
+- correction proposal data models and enriched proposal metadata;
+- replacement policy handling (`require_unique`, `replace_all`);
+- safe per-segment proposal preview;
+- deterministic transcript proposal application in stable proposal-index order;
+- applied and skipped change records with stable skip reasons;
+- report/diagnostic-oriented chunking summary and chunk metadata hooks;
+- minimal framework contracts/interfaces for future modules, validators, and structured LLM clients;
+- test-only fake-module composition tests proving chunking and proposal application can work together.
+
+The Go rewrite does **not** yet include end-to-end transcript polishing behavior:
+
+- no real module execution pipeline yet;
+- no real `glossary`, `homophones`, `spoken_word`, or `grammar` module implementations;
+- no LLM proposal generation;
+- no validator-chain execution;
+- no concrete structured LLM client implementation;
+- no final LLM-driven transcript polishing behavior comparable to Python production runs.
+
+This means the Go binary should not be described as a complete LLM transcript polisher yet.
+
+## Developer quick note
+
+Use these commands while developing deterministic rewrite phases:
+
+```sh
+go test ./...
+go run ./cmd/audita process internal/cli/testdata/tiny_transcript.json --glossary internal/cli/testdata/tiny_glossary.yaml --output /tmp/audita-go-output.json --report-json /tmp/audita-go-report.json
+```
+
+The second command is a representative CLI wiring check only; it is not a real LLM polishing run in the current phase.
+
 ## Phase 0: Freeze the Python implementation as the reference
 
 Before writing substantial Go code, preserve the behavior of the current Python implementation.