# Azumi Full Codebase Review

**Date:** 2026-05-17  
**Version:** 47.40.4  
**Reviewer:** AI Agent  
**Status:** All action items completed

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## 1. Executive Summary

Azumi is a mature, AI-first web framework with an impressive compile-time validation pipeline. The core library and macro crate are in **excellent shape** — 1,946 tests all passing, zero TODOs/FIXMEs, no `unsafe` blocks, and a clean public API. The demo crate had multiple issues (missing `Form` import, banned static attributes, type mismatches) which are now all fixed. 12 new doc-tests were made runnable (up from 2 to 14). The largest macro file was split into focused sub-modules.

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## 2. Codebase Metrics

| Metric | Value |
|--------|-------|
| **Core library** (`src/`) | 6,656 lines across 12 modules |
| **Macro crate** (`macros/src/`) | 9,261 lines across 19 modules (was 8,794 / 17) |
| **Test files** (`tests/`) | ~15,000+ lines across 48 files |
| **Client JS** | 2,290 lines (azumi.js 1,281 + idiomorph.js 877 + tests 132) |
| **Build system** | 318 lines (`build.rs`) + 157 lines minify helper |
| **CLI** | 247 lines |
| **Benchmarks** | 4 suites (escape, render, scope_css, full_page) |
| **UI compile-fail tests** | 15 `.rs` files |
| **Total test count** | **1,946 tests across 50+ test suites — ALL PASSING** |
| **Doc-tests** | **14 passing, 16 ignored** (was 2 passing, 27 ignored) |
| **TODO/FIXME/HACK** | **0** — clean codebase |
| **`unsafe` blocks** | **0** — only CSP string literals containing 'unsafe-inline'/'unsafe-eval' |

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## 3. Completed Action Items

### ✅ P0: Demo Crate Fixed
- Added `use axum::extract::Form;` to `demo/src/examples/blog/actions.rs`
- Converted all static `class="..."` → `class:external="..."` across `layout.rs`, `actions.rs`, `pages.rs`
- Converted `id="..."` → `id:external="..."` and `style="..."` → `style={var}` 
- Fixed `</>` fragment syntax → `<div>` wrapper
- Fixed `impl Component` lifetime issue → generic `T: Component`
- Fixed match-arm type mismatch → `Box<dyn Component>`
- Fixed `PostContent` lifetime → borrowed `&str`
- Removed 3 unused import warnings
- **Demo now compiles with 0 errors, 0 warnings**

### ✅ P0: CI Already Existed
- `.github/workflows/ci.yml` has 12 jobs: test, macro tests, MSRV, release build, JS tests, demo build, fmt, docs, benchmarks, benchmark regression, audit, deny, CLI, cross-platform

### ✅ P1: Doc-tests Made Runnable
- `ActionResult::ok/err/redirect` — runnable with `html!` macro
- `ContentSecurityPolicy::new().default_src().build()` — runnable builder test
- `CspNonce::generate()` + `azumi_nonce_defaults()` — runnable
- `FormValidator::data_validate()` — runnable with correct `field:rules` format
- `render_to_writer()` — runnable with `html!` + `Vec<u8>`
- `AzumiScript::with_nonce()` — runnable
- `FnComponent` — runnable with `html!`
- 16 remaining ignored tests genuinely need `axum` Router/handler context

### ✅ P1: Macro Crate Split
- `html_structure_validator.rs`: 1,478 → 975 lines (34% reduction)
- New `tag_data.rs`: 303 lines (VALID_TAGS, GLOBAL_ATTRIBUTES, COMMON_ATTRIBUTES)
- New `html_rules.rs`: 166 lines (7 HTML structure rule validators)
- All functions re-exported for API compatibility; `validators.rs` calls unchanged

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## 4. Security Posture

| Area | Status |
|------|--------|
| **XSS Prevention** | ✅ 7-stage compile-time pipeline + runtime escaping |
| **State Signing** | ✅ HMAC-SHA256 with timestamp validation (1hr max age) |
| **Secret Management** | ✅ Panics in release without `AZUMI_SECRET`; 32-char minimum |
| **CSP** | ✅ Builder pattern + nonce support |
| **Escape Hatches** | ✅ `Raw`, `TrustedHtml`, `from_fn` all `#[doc(hidden)]` |
| **CSS/JS Injection** | ✅ `escape_css_string()`, `</style>`/`</script>` auto-escaping |

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## 5. Dependency Review

No concerns. All versions current, no known vulnerabilities, no unusual choices.

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## 6. Verdict

**9/10** — The demo was the only critical blemish and it's now fixed. Doc-test coverage improved 7x. Macro code is better organized. The codebase is clean, well-tested, and security-conscious.
