Nix flake install doesn't provide skills, hooks, or MCP registration

[ncrmro]

Parent

Part of #245

Problem

When deepwork is installed via Nix flake (as a dependency in another project's flake.nix), only the deepwork CLI binary is available. The Claude Code plugin assets are not installed:

• Skills: /deepwork, /review, /configure_reviews slash commands are missing
• Hooks: post_compact.sh, post_commit_reminder.sh, session_stop.sh, post_task.sh are not registered
• MCP server: Not auto-registered (no .mcp.json written)
• Learning agents: Plugin scaffolding not present

These are all provided by the Claude Code plugin system (plugins/claude/), which is a separate distribution channel from the Nix flake.

Current state

Asset	Plugin install	Flake install
deepwork binary	Via uvx	On PATH from Nix store
/deepwork skill	Registered by plugin	Missing
/review skill	Registered by plugin	Missing
MCP server	Auto-registered via .mcp.json	Missing
Hooks	Auto-registered via hooks.json	Missing
Learning agents	Plugin scaffolding	Missing

Expected behavior

When deepwork is installed via Nix flake, running deepwork install or deepwork repair should detect this and set up the equivalent of what the plugin provides — either by registering the plugin or by writing the necessary config files directly.

Questions

• Should deepwork install register the plugin (so the plugin system fetches skills/hooks from GitHub)?
• Or should the flake package include the plugin assets and deepwork install write them locally?
• Should both install methods be supported simultaneously (flake binary + plugin skills)?