A brain for your mail: MailFathom turns IMAP mailboxes into a self-hosted, AI-native service. Mail synchronizes into your own PostgreSQL, is indexed for search and retrieval, and is served to AI agents over the Model Context Protocol. Semantic retrieval, answering, and gated write tools. .NET 10, AGPL-3.0-only.
Latest release v0.7.0 — MailFathom 0.7.0 · 20 Aug 2026
24 files for Claude Code, Codex and OpenCode: add-migration, check-docs-licenses, closed-enumeration, finish-change and 20 more — 8,124 tokens loaded in every session.
AGENTS.md A 8,120 tok CLAUDE.md A 4 tok .agents/skills/add-migration/SKILL.md A 30 tok .agents/skills/check-docs-licenses/SKILL.md A 44 tok .agents/skills/closed-enumeration/SKILL.md A 35 tok .agents/skills/finish-change/SKILL.md A 25 tok .agents/skills/get-started-contributors/SKILL.md B 130 tok .agents/skills/prepare-release/SKILL.md A 58 tok .agents/skills/review-change/SKILL.md A 22 tok .agents/skills/start-task/SKILL.md A 26 tok .agents/skills/update-dependencies/SKILL.md A 55 tok .agents/skills/read-design/SKILL.md A 40 tok .agents/skills/brandkit/SKILL.md A 89 tok .agents/skills/design-taste-frontend/SKILL.md A 61 tok .agents/skills/full-output-enforcement/SKILL.md A 44 tok .agents/skills/gpt-taste/SKILL.md A 72 tok .agents/skills/high-end-visual-design/SKILL.md A 53 tok .agents/skills/image-to-code/SKILL.md A 116 tok .agents/skills/imagegen-frontend-mobile/SKILL.md A 126 tok .agents/skills/imagegen-frontend-web/SKILL.md A 126 tok .agents/skills/industrial-brutalist-ui/SKILL.md A 57 tok .agents/skills/minimalist-ui/SKILL.md A 34 tok .agents/skills/redesign-existing-projects/SKILL.md A 45 tok .agents/skills/stitch-design-taste/SKILL.md A 50 tok These files are Krzysztof318/MailFathom's own configuration — they tell Claude Code, Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.