Design: capture every TUI-only harness slash command properly instead of
leaking the CLI's raw "isn't available in this environment" error, and
grow the Claude sidebar into an interactive control panel.
Grounded in the version-keyed initialize probes (~/.config/clide/claude):
the advertised slash_commands list is the authoritative "forwards safely"
set; TUI-only builtins are absent from it. Three layers: a declarative
routing table (forward/owned/unavailable) replacing kClideOwnedCommands,
a reactive catch-all that renders unknown TUI-command errors as hint
cards, and D-6 parity controls in the sidebar Config/Activity tabs
(model/effort/permission pickers, session controls, usage block).
T-411 routing+capture, T-412 /effort spike, T-413 open-in-clide family,
T-414 Config-tab controls, T-415 Activity controls + usage (revisits
T-158).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
jpmschweitzerandClaude Fable 5
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