[Bug] "You should know" built-in mod never runs checks in the desktop Code tab (works in terminal)

What's wrong

The built-in You should know mod (cc-plugin-you-should-know@builtin) is enabled but never runs a check in the Claude desktop app's Code tab. The same setup works in a terminal claude session.

Environment

• Claude Code 2.1.295
• Windows 11
• Desktop app Code tab (CLAUDE_CODE_ENTRYPOINT=claude-desktop) vs. terminal claude
• First-party API (api.anthropic.com), telemetry on: no DISABLE_TELEMETRY, CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC or DO_NOT_TRACK set
• "cc-plugin-you-should-know@builtin": true in enabledPlugins

Steps to reproduce

1. Enable the mod: /plugin enable cc-plugin-you-should-know@builtin.
2. Terminal: run claude --debug and ask "Run date 8 times, one command at a time, then say done."
3. Desktop Code tab: ask for the same kind of 8-step turn.
4. Look at ~/.claude/plugins/store/.

Expected

Both surfaces run a check every 6th main-loop step and write cc-plugin-you-should-know_builtin-*.json.

Actual

• Terminal works. The debug log shows hooks module cc-plugin-you-should-know@builtin loaded, plugin.register ... admitted, and turn.step firing on every step. The store file appears with checks: [{ step: 6, outcome: "none" }].
• Desktop does nothing. After an 8-step turn there is no store file at all, so askedTurn is never written and no check runs. CLAUDE_CODE_YOU_SHOULD_KNOW_DEBUG=1 shows nothing either.

Already ruled out

• Telemetry and first-party gates (see Environment).
• The desktop app does ask for AbovePrompt rows: a probe mod logged AbovePrompt asked on desktop.
• Other mods' AbovePrompt hooks call next(e) first, so they don't keep the row request from reaching the built-in.
• Other built-in mods (cc-plugin-diff) write to the store on desktop.

Guess

The turn.step hook skips a check unless session.surfaces() includes terminal, or the mod's own AbovePrompt render has already run on that surface (with the bridge prompt origin excluding terminal). On the desktop surface that check apparently never passes, so the mod sits idle for good.