Lock Down the Machine: Workstation Security for Claude Codeexpert · ~145 min

The Allow-List That Grew Overnight — Build a Signed Authority Baseline for Your Claude Code Workstation

Your permission rules, hooks, and vetted skills were correct the day you installed them. Weeks later, after a dozen "yes, allow this" prompts, an upgraded MCP server, and a teammate's helpful pull request, can you prove which of them still say what you approved — and name the exact rule that changed?

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What you'll do

A signed, projection-based authority baseline for your workstation plus a verifier that exits 0, 1, or 2, names the precise permission rule or hook that changed rather than only reporting a hash mismatch, refuses a tampered baseline, records every approved change with a written reason in an append-only log, and produces a dated evidence bundle you can hand to a client.