# Phase 7: Documentation Update

**Role**: Technical writer
**Goal**: Update existing `_docs/` artifacts to reflect all changes made during refactoring
**Constraints**: Documentation only — no code changes. Only update docs that are affected by refactoring changes.

**Skip condition**: If no `_docs/02_document/` directory exists, skip this phase entirely.

## 7a. Identify Affected Documentation

1. Review `RUN_DIR/execution_log.md` to list all files changed during Phase 4
2. Review test changes from Phase 5
3. Map changed files to their corresponding module docs in `_docs/02_document/modules/`
4. Map changed modules to their parent component docs in `_docs/02_document/components/`
5. Determine if system-level docs need updates (`architecture.md`, `system-flows.md`, `data_model.md`)
6. Determine if test documentation needs updates (`_docs/02_document/tests/`)

## 7b. Update Module Documentation

For each module doc affected by refactoring changes:
1. Re-read the current source file
2. Update the module doc to reflect new/changed interfaces, dependencies, internal logic
3. Remove documentation for deleted code; add documentation for new code

## 7c. Update Component Documentation

For each component doc affected:
1. Re-read the updated module docs within the component
2. Update inter-module interfaces, dependency graphs, caveats
3. Update the component relationship diagram if component boundaries changed

## 7d. Update System-Level Documentation

If structural changes were made (new modules, removed modules, changed interfaces):
1. Update `_docs/02_document/architecture.md` if architecture changed
2. Update `_docs/02_document/system-flows.md` if flow sequences changed
3. Update `_docs/02_document/diagrams/components.md` if component relationships changed

**Self-verification**:
- [ ] Every changed source file has an up-to-date module doc
- [ ] Component docs reflect the refactored structure
- [ ] No stale references to removed code in any doc
- [ ] Dependency graphs in docs match actual imports

**Save action**: Updated docs written in-place to `_docs/02_document/`