---
phase: 01-foundation
verified: 2026-02-26T19:00:00Z
status: passed
score: 4/4 must-haves verified
re_verification: false
---

# Phase 1: Foundation Verification Report

**Phase Goal:** Developers can install the package and the server has the new endpoint — everything needed to make an SDK call exists, even if scanners aren't implemented yet
**Verified:** 2026-02-26T19:00:00Z
**Status:** PASSED
**Re-verification:** No — initial verification

## Goal Achievement

### Observable Truths

| # | Truth | Status | Evidence |
|---|-------|--------|----------|
| 1 | `pip install meshulash-guard` works and `from meshulash_guard import Guard` imports without error | VERIFIED | `.venv/bin/python -c "from meshulash_guard import Guard, Action, Condition, ScanResult"` exits 0; `__version__ = "0.1.0"` |
| 2 | The security server accepts a JSON POST to `/api/security/scan` with `text` + `guardline_specs` and returns a per-scanner breakdown | VERIFIED | Route registered: `/api/security/scan` (confirmed via Flask url_map); `scan_sdk()` calls `process_sdk()` which returns `{status, processed_text, placeholders, level, scanners, risk_categories}`; 400/401/415 error codes all wired |
| 3 | A `Guard(server_url=..., api_key=...)` instance can be constructed and its HTTP client is configured with the correct auth header | VERIFIED | `_build_session()` sets `X-Api-Key` as session header; `Guard.__init__` calls `_build_session(api_key=api_key, tenant_id=tenant_id)` and then `_validate_credentials()` which GETs `/api/security/health/auth`; Guard raises SDK `ConnectionError` (not a type error) when server is unreachable |
| 4 | `Action`, `Condition`, and structured result types are importable and usable in isolation (no scanner needed) | VERIFIED | `Action.REPLACE == 'replace'`, `str(Action.REPLACE) == 'replace'`, `f'{Condition.ANY}' == 'any'` all pass on Python 3.13.2; `ScanResult`, `ScannerResult`, `Detection` are frozen Pydantic v2 BaseModels; `model_dump()` and `model_validate()` confirmed working |

**Score:** 4/4 truths verified

---

### Required Artifacts

| Artifact | Expected | Status | Details |
|----------|----------|--------|---------|
| `/Users/shalev/Desktop/AIM/security-server/src/main.py` | `/api/security/scan` + `/api/security/health/auth` routes + `process_sdk()` | VERIFIED | 459 lines; both routes registered on `security_blueprint` with `@api_key_required`; `process_sdk()` runs full 5-stage pipeline with inline specs; `_build_tc_policies_from_specs()` and `_validate_api_key_via_backend()` present |
| `/Users/shalev/Desktop/meshulash_guard/pyproject.toml` | PEP 517/518 with hatchling, pip-installable | VERIFIED | 33 lines; `name = "meshulash-guard"`, `build-backend = "hatchling.build"`, `pydantic>=2.0` + `requests>=2.28` deps; `license = { text = "Proprietary" }` table syntax |
| `/Users/shalev/Desktop/meshulash_guard/src/meshulash_guard/__init__.py` | Public API surface with all exports | VERIFIED | 27 lines; exports `Guard`, `ScanResult`, `ScannerResult`, `Detection`, `Action`, `Condition`, all 4 exceptions; `__all__` defined; `__version__ = "0.1.0"` |
| `/Users/shalev/Desktop/meshulash_guard/src/meshulash_guard/enums.py` | `Action` and `Condition` enums with correct string values | VERIFIED | 40 lines; `_StrValueMixin` overrides `__str__`/`__format__` for Python 3.12+ compat; `Action.REPLACE/BLOCK/LOG` and `Condition.ANY/ALL/K_OF/CONTEXTUAL` with correct server-matching values |
| `/Users/shalev/Desktop/meshulash_guard/src/meshulash_guard/exceptions.py` | Exception hierarchy | VERIFIED | 32 lines; `MeshulashError` base with `AuthError`, `ServerError` (has `status_code`), `ConnectionError`, `ValidationError` |
| `/Users/shalev/Desktop/meshulash_guard/src/meshulash_guard/models.py` | Pydantic v2 frozen result types | VERIFIED | 59 lines; `Detection`, `ScannerResult`, `ScanResult` all use `ConfigDict(frozen=True)`; `model_validate()`/`model_dump()` confirmed working; no `.dict()` or `.parse_obj()` |
| `/Users/shalev/Desktop/meshulash_guard/src/meshulash_guard/_http.py` | Session builder with retry on POST, no session-level Content-Type | VERIFIED | 46 lines; `_build_session()` sets `X-Api-Key`/`X-Tenant-Id`/`Accept` headers; `Retry(allowed_methods={"POST"})` explicit; Content-Type absent at session level; adapter mounted on both `https://` and `http://` |
| `/Users/shalev/Desktop/meshulash_guard/src/meshulash_guard/guard.py` | Guard class with scan_input, scan_output stub, deanonymize, clear_cache | VERIFIED | 179 lines; `__init__` takes `api_key`, `tenant_id`, `server_url`, `timeout`; builds session, calls `_validate_credentials()`; `scan_input()` POSTs to `/api/security/scan`; `scan_output()` raises `NotImplementedError("scan_output() is coming in v2")`; `deanonymize()` and `clear_cache()` implemented |
| `/Users/shalev/Desktop/meshulash_guard/src/meshulash_guard/scanners/base.py` | `BaseScanner` and `BaseNormalizer` abstract classes | VERIFIED | 49 lines; `abc.ABC` + `@abstractmethod` enforce `to_guardline_spec()` and `to_normalizer_spec()`; direct instantiation raises `TypeError` (confirmed) |

---

### Key Link Verification

| From | To | Via | Status | Details |
|------|----|-----|--------|---------|
| `guard.py Guard.__init__` | `_http._build_session` | import + call | WIRED | `from ._http import _build_session` at top; `self._session = _build_session(api_key=api_key, tenant_id=tenant_id)` in `__init__` |
| `guard.py Guard._validate_credentials` | `/api/security/health/auth` | `self._session.get(url)` | WIRED | `url = f"{self._base_url}/api/security/health/auth"`; GET issued with timeout; 401→`AuthError`, 5xx→`ServerError`, connection fail→`ConnectionError` |
| `guard.py Guard.scan_input` | `/api/security/scan` | `self._session.post(url, json=payload)` | WIRED | `url = f"{self._base_url}/api/security/scan"`; `payload = {"text": text, "guardline_specs": guardline_specs}`; response parsed with `ScanResult.model_validate(resp.json())`; vault updated with `result.placeholders` |
| `__init__.py` | `guard.py`, `models.py`, `enums.py`, `exceptions.py` | re-exports | WIRED | All 11 symbols re-exported; `__all__` matches imports |
| `scan_sdk route` | `process_sdk()` | direct call inside route | WIRED | `result = process_sdk(text=text, guardline_specs=guardline_specs)` at line 426 of main.py |
| `scan_sdk route` | `@api_key_required` decorator | Flask decorator | WIRED | `@security_blueprint.route("/scan", methods=["POST"])` + `@api_key_required` at lines 380-381 |
| `health_auth route` | `_validate_api_key_via_backend()` | direct call | WIRED | `validation = _validate_api_key_via_backend()` called before returning 200 |
| `process_sdk` | 5-stage pipeline | local imports | WIRED | `normalize_whitespace → get_registry().detect_all → CustomRegexRecognizer → TCRecognizer → validate_matches → score_matches → gate → apply_action` all called in sequence |

---

### Requirements Coverage

| Requirement | Description | Status | Evidence |
|-------------|-------------|--------|---------|
| SRV-01 | POST /api/security/scan with inline guardline_specs | SATISFIED | Route exists, registered on Flask url_map, accepts JSON body |
| SRV-02 | Per-scanner result breakdown in response | SATISFIED | `process_sdk()` builds `scanners` dict keyed by guardline ID with `triggered`, `score`, `detections` |
| SRV-03 | JSON content-type support | SATISFIED | `request.is_json` check + `get_json(silent=True)` at lines 405-408 |
| SRV-04 | X-Api-Key header authentication | SATISFIED | `@api_key_required` on both routes; `_validate_api_key_via_backend()` does explicit backend key validation |
| SDK-01 | Guard class accepts server_url and api_key | SATISFIED | `Guard(api_key, tenant_id, server_url=None, timeout=60)` signature; session-level `X-Api-Key` header |
| SDK-04 | BaseScanner abstract class with to_guardline_spec() | SATISFIED | `BaseScanner(ABC)` with `@abstractmethod to_guardline_spec()` in `scanners/base.py` |
| SDK-05 | BaseNormalizer abstract class | SATISFIED | `BaseNormalizer(ABC)` with `@abstractmethod to_normalizer_spec()` in `scanners/base.py` |
| SDK-06 | Structured result type with all required fields | SATISFIED | `ScanResult` has `status`, `processed_text`, `placeholders`, `level`, `scanners` (per-scanner), `risk_categories` |
| SDK-07 | Action enum REPLACE/BLOCK/LOG | SATISFIED | `Action.REPLACE="replace"`, `Action.BLOCK="block"`, `Action.LOG="log"`; `str()` and f-string return value not name |
| SDK-08 | Condition enum ANY/ALL/K_OF/CONTEXTUAL | SATISFIED | `Condition.ANY="any"`, `Condition.ALL="all"`, `Condition.K_OF="k_of"`, `Condition.CONTEXTUAL="contextual_analysis"` |
| PKG-01 | pyproject.toml with PEP 517/518 | SATISFIED | hatchling backend; `pip install -e .` succeeds via `.venv` |
| PKG-02 | Package named meshulash-guard, importable as meshulash_guard | SATISFIED | `name = "meshulash-guard"` in pyproject.toml; `packages = ["src/meshulash_guard"]`; import confirmed working |

---

### Anti-Patterns Found

| File | Line | Pattern | Severity | Impact |
|------|------|---------|----------|--------|
| `guard.py` | 154 | `raise NotImplementedError("scan_output() is coming in v2")` | Info | Expected and documented — `scan_output` is intentionally a v2 stub per plan spec; the signature is defined for Phase 2 contract purposes |

No blocker or warning anti-patterns found. The single `NotImplementedError` is intentional by design (documented in PLAN, SUMMARY, and code docstring).

---

### Human Verification Required

None — all phase 1 goals are verifiable programmatically. The package installs, imports work, routes are registered, wiring is confirmed via code inspection, and enum/model behavior is confirmed via runtime execution.

If desired, a manual integration test can confirm end-to-end behavior:

**1. Full scan round-trip**

**Test:** With a running server, call `guard.scan_input("my email is test@example.com", scanners=[pii_scanner])`
**Expected:** `ScanResult` with `status="secured"`, `processed_text` containing a placeholder, and the `scanners` dict showing `triggered=True` for the PII scanner
**Why human:** Requires a running server with valid API key and PII scanner implementation (Phase 2)

---

## Summary

Phase 1 goal is fully achieved. All 4 observable truths are verified, all 9 SDK artifact files pass all three levels (exists, substantive, wired), the server endpoint is registered and fully wired through the 5-stage pipeline, and all 12 Phase 1 requirements (SRV-01–04, SDK-01/04–08, PKG-01–02) are satisfied.

Notable implementation quality observations:
- The Python 3.12+ `(str, Enum)` `str()` behavior regression was proactively caught and fixed via `_StrValueMixin`
- `Content-Type` is correctly absent from session-level headers (set per-request via `json=` kwarg)
- `allowed_methods={"POST"}` is explicitly set on the retry adapter (urllib3 does not retry POST by default)
- `scan_output()` raises `NotImplementedError` with an informative message rather than being silently missing

---

_Verified: 2026-02-26T19:00:00Z_
_Verifier: Claude (gsd-verifier)_
