internal/

Package config loads, validates, and resolves the mail-muncher YAML configuration file: provider credentials, rule definitions, sink targets, and any file paths referenced from within them.

Package filter implements the rule engine: it compiles a rule's `match:` tree into a Matcher and decides, for each message, which rule (if any) claims it.

Package mcpserver exposes the mail mail-muncher has already stored to agents over the Model Context Protocol.

Package model defines the canonical, provider-independent message model that flows through the pipeline: headers, addresses, bodies, and attachments normalised from whatever the provider returned.

Package pipeline orchestrates a full cycle: fetch messages from a provider, evaluate them with the filter engine, and hand the matches to the sinks.

Package provider defines the mail provider interface (authenticate, list, fetch) along with its concrete implementations, e.g.

Package sink writes matched messages to their destinations, such as raw .eml files and rendered Markdown documents.

Package state persists sync state between runs: which messages have already been processed, provider cursors, and the locking that keeps concurrent runs from stepping on each other.