Turn your chat history into an ex that talks back

What it does

ex-skill is a Claude Code Skill built on the AgentSkills standard. It takes relationship artifacts—WeChat or QQ chat exports, social media screenshots, JPEGs with EXIF data, or plain-text descriptions—and compiles them into a two-part persona file. One half catalogs shared memories, inside jokes, and fight patterns; the other encodes a five-layer personality stack covering identity, speech style, emotional behavior, and tags like MBTI type or zodiac sign. Once generated, the skill is invoked via slash command to chat with a simulation that references real dates, mimics phrasing, and replicates late-night argument dynamics.

The interesting bit

The project treats a breakup like a dataset to be parsed, version-controlled, and incrementally updated. It includes Python parsers for chat logs, a merge pipeline for appending new memories, a correction layer for when the bot sounds wrong, and rollback support—essentially Git for a ghost. The README is also unusually self-aware: it warns against unhealthy obsession, reminds you the real person has moved on, and provides a let-go mode to delete the skill when you’re done.

Key highlights

• Ingests WeChat/QQ exports, social screenshots, photos, or subjective text as raw material
• Splits output into Relationship Memory (shared timeline) and a five-layer Persona (speech style, attachment type, love language, MBTI/zodiac)
• Supports incremental memory merges, real-time conversational corrections, and version rollback
• Runs through Claude Code or OpenClaw; no local GPU or Docker needed
• Community ecosystem includes spin-offs for relationship reflection and colleague simulation

Caveats

• Authenticity depends on source quality: the README states late-night chats and fight logs produce better personas than daily small talk
• Costs 5k–15k Anthropic tokens per creation, billed via Claude subscription or API key
• The authors explicitly caution against stalking or harassment, and note the skill is only “the ex in your memory”

Verdict

A curiosity for developers nursing a breakup who prefer systematic emotional processing to journaling. If you’ve already done the healthy thing and deleted the chat export, there’s nothing here for you.