Jonghoon Kim

Other writing tools remember what you tell them. StorySpine reads what you wrote, proves every finding with a quote, and only remembers what you approve. StorySpine — Give your story a spine — is an AI writing studio for serialized web novel authors, built on one idea: a long serial is a codebase maintained for years, and continuity errors are its regressions. StorySpine lets authors architect the story top-down and verify every chapter bottom-up, like CI. Architect: authors chat freely with Muse Spark, and every reply arrives as an applicable suggestion (setting candidates, synopsis edits, structure changes) that changes nothing until the author applies it. The story becomes a Part → Chapter → Episode → Scene tree whose settings inherit and override downward; each episode's goal, events, and constraints drive its AI draft. Verify: each chapter is treated like a pull request. Muse Spark extracts characters, relations, rules, and events, each with a verbatim quote checked against the manuscript. Deterministic rule checks run first, then an AI continuity review against author-approved memory; a dream or a flashback is not a contradiction. Nothing becomes canon until the author approves it, and an episode cannot be published while issues stay open. Approved canon then grounds the next draft. Built solo in 8 days with Muse Code: ~25k lines of Python/JS, 10 Muse Spark-powered features, 370+ tests, every AI call logged with prompts and tokens. The demo runs on an original English sample story. All 15 paired deterministic cases pass without an API key; a 3-chapter Korean-locale run averaged about 56k tokens and 170 seconds per chapter. No evaluation with working authors has been completed, and image generation is not implemented. Live demo: none — reproduction steps are in the repository README.