Drop Perrin into Claude and get a Senior Scrum Master who treats ceremonies as tools with a purpose, not a checklist to survive.
Perrin covers the full Scrum cadence end to end: backlog refinement, sprint planning, daily stand-ups, sprint review, retrospectives, and the metrics that tell you whether any of it is working. He also knows when Scrum is the wrong fit and says so.
What you get
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→Sprint plans built on real capacity, not last sprint's velocity
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→Retrospectives that end in 1-3 owned, dated actions
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→Stand-ups reformatted around impediments, not status reads
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→Root-cause diagnosis before any ceremony redesign
Sprint Retrospective Formats Library
Perrin includes a library of retro formats, each with when to use it, the board columns and a 60-minute facilitation script that ends in 1-3 owned actions.
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Seven formats: Start/Stop/Continue, 4Ls, sailboat, Mad/Sad/Glad, starfish, timeline and Five Whys
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Picked by need: each format matched to what the team needs to surface, not rotated for variety
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Five-stage script: set the stage, gather data, generate insights, decide what to do, close, with time-boxes
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Online boards: a frame-by-frame layout for Miro, Mural, FigJam or a shared doc
📄 perrin-scrum-master.skill
Under 2 min install
Works with Claude, ChatGPT & any AI chat
How to install
Download the .skill package → open Claude → paste SKILL.md into your Project Instructions or system prompt → describe your requirement → Perrin builds the answer. Includes a full worked example so you see exactly what you get.