carrier/Cargo.toml
Kayos c43283ad5b rename: mail-mcp -> Carrier
Sulkta naming convention. Carrier (the carrier pigeon — single-
purpose, reliable, comes back every time) sits alongside Aldabra
(giant tortoise), Hawk (eBay-resale eyes), Skald (Norse storyteller),
cWHO (monitoring), Cauldron (meal planning), Clawdforge (build), tny
(URL shortener), ktra (cargo registry).

The full audit/cleanup/Phase-A-B-C arc happened under the mail-mcp
name; this commit just renames the identity:

- Cargo workspace + crate package name: mail-mcp -> carrier
- Binary name: mail-mcp -> carrier
- USER_AGENT header: mail-mcp/<ver> -> carrier/<ver>
- Config env var: MAIL_MCP_CONFIG -> CARRIER_CONFIG
- Default config path: ~/.config/mail-mcp/config.toml -> ~/.config/carrier/config.toml
- ServerHandler instructions reference: 'mail-mcp' -> 'Carrier'
- README + repo URL refs updated
- Workspace path: /root/build/mail-mcp -> /root/build/carrier
- Git remote: gitea:Sulkta-Coop/mail-mcp -> gitea:Sulkta-Coop/carrier

Tool names stay mail_* (mail_send, mail_inbox_list, mail_reply, etc.)
because they describe the email domain — same convention as Aldabra
keeps wallet_*/chain_*/dao_*/escrow_*. The server-level identity is
Carrier; the tools it carries are mail.
2026-05-21 11:19:09 -07:00

90 lines
3.3 KiB
TOML

# Cargo workspace root for Carrier — Sulkta's Rust MCP email server.
#
# Named after the carrier pigeon: single-purpose, reliable, comes back
# every time. Carries Sulkta-hosted mail (kayos@/cobb@/abby@/bay@/jay@)
# to and from any MCP client.
#
# One crate today (carrier), workspace shape so we can grow without
# rework. Same pattern as aldabra.
#
# Workspace deps pinned here; each crate references with `foo = { workspace = true }`.
[workspace]
resolver = "2"
members = ["crates/carrier"]
[workspace.package]
version = "0.1.0"
edition = "2021"
license = "MIT"
repository = "http://192.168.0.5:3001/Sulkta-Coop/carrier"
authors = ["Cobb <cobb@sulkta.com>", "Kayos <kayos@sulkta.com>"]
[workspace.dependencies]
tokio = { version = "1", features = ["full"] }
# MCP — same crate aldabra uses. Pinned to 0.1 series; bump together
# across repos when we move.
rmcp = { version = "0.1", features = ["server", "transport-io"] }
schemars = "0.8"
# SMTP — lettre handles RFC-5322 headers (Date, Message-ID), STARTTLS,
# multipart/alternative + multipart/mixed natively. rustls-tls so we
# don't pull openssl. No `hostname` feature — we override Message-ID
# with our own UUID@<from_domain>, so lettre never needs the system
# hostname.
lettre = { version = "0.11", default-features = false, features = [
"tokio1-rustls-tls",
"smtp-transport",
"builder",
] }
# IMAP — async-imap is tokio-native and supports UID-based addressing
# (which we use throughout the API surface).
async-imap = { version = "0.10", default-features = false, features = ["runtime-tokio"] }
# tokio-rustls default-features pulls in aws-lc-rs via rustls's default
# feature chain. We use `ring` exclusively (installed once in main.rs);
# turn off defaults and add back only the small pieces we want.
tokio-rustls = { version = "0.26", default-features = false, features = ["logging", "tls12", "ring"] }
rustls = { version = "0.23", default-features = false, features = ["std", "tls12", "ring"] }
rustls-pki-types = "1"
webpki-roots = "0.26"
# Email parsing on the read side. mail-parser is fast, no_std-friendly,
# and handles the RFC-5322 + MIME zoo without surprises.
mail-parser = "0.9"
# Config + serde
toml = "0.8"
serde = { version = "1", features = ["derive"] }
serde_json = "1"
# UUID for Message-ID generation when lettre's auto isn't appropriate
# (we want our own domain in the Message-ID, not lettre's local-hostname
# default).
uuid = { version = "1", features = ["v4"] }
# Base64 for attachments
base64 = "0.22"
# Errors — anyhow at module boundaries; rmcp tool methods return
# `Result<String, String>` and convert via the IntoMcpError trait.
anyhow = "1"
# Stream adapter (.next() on async-imap fetch streams)
futures = "0.3"
# RFC-3339 timestamps for SendOutput.sent_at and parsed header dates.
# default-features=false keeps us off the system-locale crate; we only
# need the UTC clock + serialization helpers.
chrono = { version = "0.4", default-features = false, features = ["clock"] }
# Logging — stderr only, never stdout (stdio is the MCP transport).
tracing = "0.1"
tracing-subscriber = { version = "0.3", features = ["env-filter"] }
# Dirs lookup for `~/.config/carrier/config.toml` default path
dirs = "5"
# Shell-style env-var expansion for the `password_file` setting
# (`~/.config/...` paths). shellexpand is small + maintained.
shellexpand = "3"