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Vishesh 'ironeagle' Bangotra 24ecde4222
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<h1 id="mail-intake">Mail Intake</h1>
<div class="doc doc-object doc-module">
<h2 id="mail_intake" class="doc doc-heading">
<span class="doc doc-object-name doc-module-name">mail_intake</span>
</h2>
<div class="doc doc-contents first">
<p>Mail Intake — provider-agnostic, read-only email ingestion framework.</p>
<p>Mail Intake is a <strong>contract-first library</strong> designed to ingest, parse, and
normalize email data from external providers (such as Gmail) into clean,
provider-agnostic domain models.</p>
<p>The library is intentionally structured around clear layers, each exposed
as a first-class module at the package root:</p>
<ul>
<li>adapters: provider-specific access (e.g. Gmail)</li>
<li>auth: authentication providers and credential lifecycle management</li>
<li>credentials: credential persistence abstractions and implementations</li>
<li>parsers: extraction and normalization of message content</li>
<li>ingestion: orchestration and high-level ingestion workflows</li>
<li>models: canonical, provider-agnostic data representations</li>
<li>config: explicit global configuration</li>
<li>exceptions: library-defined error hierarchy</li>
</ul>
<p>The package root acts as a <strong>namespace</strong>, not a facade. Consumers are
expected to import functionality explicitly from the appropriate module.</p>
<hr />
<h4 id="mail_intake--installation">Installation</h4>
<p>Install using pip:</p>
<pre><code>pip install mail-intake
</code></pre>
<p>Or with Poetry:</p>
<pre><code>poetry add mail-intake
</code></pre>
<p>Mail Intake is pure Python and has no runtime dependencies beyond those
required by the selected provider (for example, Google APIs for Gmail).</p>
<hr />
<h4 id="mail_intake--basic-usage">Basic Usage</h4>
<p>Minimal Gmail ingestion example (local development):</p>
<pre><code>from mail_intake.ingestion import MailIntakeReader
from mail_intake.adapters import MailIntakeGmailAdapter
from mail_intake.auth import MailIntakeGoogleAuth
from mail_intake.credentials import PickleCredentialStore
store = PickleCredentialStore(path="token.pickle")
auth = MailIntakeGoogleAuth(
credentials_path="credentials.json",
store=store,
scopes=["https://www.googleapis.com/auth/gmail.readonly"],
)
adapter = MailIntakeGmailAdapter(auth_provider=auth)
reader = MailIntakeReader(adapter)
for message in reader.iter_messages("from:recruiter@example.com"):
print(message.subject, message.from_email)
</code></pre>
<p>Iterating over threads:</p>
<pre><code>for thread in reader.iter_threads("subject:Interview"):
print(thread.normalized_subject, len(thread.messages))
</code></pre>
<hr />
<h4 id="mail_intake--extensibility-model">Extensibility Model</h4>
<p>Mail Intake is designed to be extensible via <strong>public contracts</strong> exposed
through its modules:</p>
<ul>
<li>Users MAY implement their own mail adapters by subclassing
<code>adapters.MailIntakeAdapter</code></li>
<li>Users MAY implement their own authentication providers by subclassing
<code>auth.MailIntakeAuthProvider[T]</code></li>
<li>Users MAY implement their own credential persistence layers by
implementing <code>credentials.CredentialStore[T]</code></li>
</ul>
<p>Users SHOULD NOT subclass built-in adapter implementations. Built-in
adapters (such as Gmail) are reference implementations and may change
internally without notice.</p>
<hr />
<h4 id="mail_intake--public-api-surface">Public API Surface</h4>
<p>The supported public API consists of the following top-level modules:</p>
<ul>
<li>mail_intake.ingestion</li>
<li>mail_intake.adapters</li>
<li>mail_intake.auth</li>
<li>mail_intake.credentials</li>
<li>mail_intake.parsers</li>
<li>mail_intake.models</li>
<li>mail_intake.config</li>
<li>mail_intake.exceptions</li>
</ul>
<p>Classes and functions should be imported explicitly from these modules.
No individual symbols are re-exported at the package root.</p>
<hr />
<h4 id="mail_intake--design-guarantees">Design Guarantees</h4>
<ul>
<li>Read-only access: no mutation of provider state</li>
<li>Provider-agnostic domain models</li>
<li>Explicit configuration and dependency injection</li>
<li>No implicit global state or environment reads</li>
<li>Deterministic, testable behavior</li>
<li>Distributed-safe authentication design</li>
</ul>
<p>Mail Intake favors correctness, clarity, and explicitness over convenience
shortcuts.</p>
<h4 id="mail_intake--core-philosophy">Core Philosophy</h4>
<p><code>Mail Intake</code> is built as a <strong>contract-first ingestion pipeline</strong>:</p>
<ol>
<li><strong>Layered Decoupling</strong>: Adapters handle transport, Parsers handle format normalization, and Ingestion orchestrates.</li>
<li><strong>Provider Agnosticism</strong>: Domain models and core logic never depend on provider-specific (e.g., Gmail) API internals.</li>
<li><strong>Stateless Workflows</strong>: The library functions as a read-only pipe, ensuring side-effect-free ingestion.</li>
</ol>
<h4 id="mail_intake--documentation-design">Documentation Design</h4>
<p>Follow these "AI-Native" docstring principles across the codebase:</p>
<h5 id="mail_intake--for-humans">For Humans</h5>
<ul>
<li><strong>Namespace Clarity</strong>: Always specify which module a class or function belongs to.</li>
<li><strong>Contract Explanations</strong>: Use the <code>adapters</code> and <code>auth</code> base classes to explain extension requirements.</li>
</ul>
<h5 id="mail_intake--for-llms">For LLMs</h5>
<ul>
<li><strong>Dotted Paths</strong>: Use full dotted paths in docstrings to help agents link concepts across modules.</li>
<li><strong>Typed Interfaces</strong>: Provide <code>.pyi</code> stubs for every public module to ensure perfect context for AI coding tools.</li>
<li><strong>Canonical Exceptions</strong>: Always use <code>: description</code> pairs in <code>Raises</code> blocks to enable structured error analysis.</li>
</ul>
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