install-skilllisted

# Install skill Argument: $ARGUMENTS — component id (matching an entry in `skill-sources.json`) and optional `--method=<sparse_clone|marketplace|npx_filtered|synthesis>` override. > **Hard rule:** this skill writes to disk. It must always confirm with the user before executing any install. Never auto-run. ## Workflow ### 1. Look up the source Read `${CLAUDE_SKILL_DIR}/../discover-skill/references/skill-sources.json` and find the entry for `$ARGUMENTS` (by `id` or `highlight_skills[*]`). If not found, abort: `"Component not in catalog. Use 'discover-skill <keyword>' to find candidates, or pass a fully-qualified URL with --custom-source."` ### 2. Choose install method Pick from the entry's `install_methods[*]` array: - If user passed `--method=<X>`, validate that the source supports it. - Otherwise, use the entry where `primary: true`. If a tier_4 source is selected, **always show the warning text** and require explicit `sim` (not `all`) for that line. ### 3. Show install plan ``` About to install: <component> Source: <repo URL> Tier: <tier_1|tier_2|tier_3|tier_4> License: <license> Method: <sparse_clone|marketplace|npx_filtered|synthesis> Target: <destination path> Disk: ~<estimated size> (sparse-clone reduces this) [Tier 4 only] WARNING: <warning text from catalog> Proceed? [sim/skip] ``` Wait for user response. If `skip`, exit and log. ### 4. Execute the install #### Method A — sparse_clone ```bash set -euo pipefail TARGET=~/.claude/sk