Duplicate skills in slash command autocomplete menu

Description

Skills registered in ~/.claude/skills/ are appearing twice in the slash command autocomplete menu. A reboot does not fix it.

Evidence

The system-reminder injected into conversations lists the same skills twice -- once in the main skill block, and then a second identical copy appended at the bottom. This causes the slash menu to show duplicate entries for every skill.

Duplicated skills (second copy is identical to the first):

• client, pull-reddit, boot, pull-pipeline, pull-rs-orders, pull-dataforseo, pull-keyword-fanout, pull-pr-proposal, log-meeting, log, pull, pull-serp, todo, wrap, network-health, personal-health, pull-analytics, pull-analytics-wiki, pull-ai-audit, pull-email, pull-orm

Setup

• Skills are defined as directories under ~/.claude/skills/ (e.g., ~/.claude/skills/boot/, ~/.claude/skills/todo/, etc.)
• No project-level settings.json with skill registrations
• No duplicate skill directories
• macOS, Claude Code CLI (latest)

Expected behavior

Each skill appears once in the slash menu.

Actual behavior

Each skill appears twice. Rebooting Claude Code does not resolve it.