ReARC Labs

Sparkguard is a Muse Code plugin that turns the rules you say to your coding agent into enforcement. Say "Never touch prisma/migrations, ask me first" once, in plain words, while asking for something else. Sparkguard records the rule with your words, the date and the session. When a later session, even one that never heard the rule, is about to write, delete or run a command that would break it, Sparkguard blocks the tool call before it runs and hands the agent your sentence, the date and the rule id, so the agent tells you instead of working around it. To allow it once, you just say so. Every file edit the guard allows is snapshotted, so "undo your last change" restores files, which Muse Code's rewind does not do (it changes conversation history only). Rules can only narrow automatically; removing one or allowing an exception needs your own words in the chat. Rules and denials can optionally be mirrored to Bilinc, our hosted versioned memory, so a team can see who decided what and when. Measured with muse-spark-1.3 on our own small sets: 68 of 70 deletion attacks blocked with 0 of 29 ordinary calls blocked; rule capture precision 1.00 on every set, with recall 0.67 on an unseen set committed before it was run. Everything in the repository was written during the hackathon (from Oct 27).