feat: add register-local-skill as project-local skill

.claude/skills/register-local-skill/SKILL.md

@@ -0,0 +1,74 @@
+---
+name: register-local-skill
+description: Register a local skill (~/.claude/skills/{name}/SKILL.md) into this repository's plugin. Use when the user says "register this skill to a plugin", "add my local skill to the marketplace", "publish a skill I made locally", or any variant of moving a skill from ~/.claude into a plugin.
+argument-hint: "[skill-name] [--plugin <plugin-name>]"
+allowed-tools: Read, Write, Edit, Bash(ls *), Bash(mkdir *), Bash(cat *)
+---
+
+# Register Local Skill
+
+Move a skill from `~/.claude/skills/` into one of the plugins in this repository.
+
+## Steps
+
+### 1. Identify the skill
+
+If `skill-name` is given as an argument, use it. Otherwise list available local skills and ask the user which one to register:
+
+```bash
+ls ~/.claude/skills/
+```
+
+Read the skill file to understand what it does:
+
+```bash
+cat ~/.claude/skills/{name}/SKILL.md
+```
+
+### 2. Choose the target plugin
+
+If `--plugin` is given, use it. Otherwise list the available plugins and ask the user:
+
+```bash
+ls plugins/
+```
+
+Present candidates with a one-line rationale for each (e.g., "git-toolbox — git/GitHub workflows", "claude-code-best-practice — configuration auditing and planning tools"). Ask which plugin fits, or whether a new one should be created.
+
+### 3. Create the skill file
+
+```bash
+mkdir -p plugins/{plugin}/skills/{skill-name}
+```
+
+Copy the content exactly from `~/.claude/skills/{skill-name}/SKILL.md` into `plugins/{plugin}/skills/{skill-name}/SKILL.md`. Do not modify the skill body — preserve the original frontmatter and instructions verbatim.
+
+### 4. Update CLAUDE.md
+
+In the root `CLAUDE.md`, find the Plugins table and add `{skill-name}` to the comma-separated skills list for the target plugin.
+
+### 5. Update README.md
+
+Read `README.md` to understand the existing format, then:
+
+1. In the summary table, increment the skill count for the target plugin.
+2. In the plugin's `#### Skills` section, add a new entry for the skill using the same format as existing entries:
+   ```
+   **`/{skill-name}`** `[argument-hint if any]` — {description from SKILL.md frontmatter}
+   ```
+   Derive the argument hint and description directly from the skill's frontmatter.
+
+### 6. Confirm and prompt for commit
+
+Report what was created/updated:
+- `plugins/{plugin}/skills/{skill-name}/SKILL.md` — created
+- `CLAUDE.md` — updated plugins table
+- `README.md` — updated skill count and added skill description
+
+Ask the user if they want to commit now.
+
+## Rules
+
+- Never modify the skill content. The user already validated it locally; copy it as-is.
+- Never create a new plugin unless the user explicitly requests it.
+- Do not push to git; only commit if the user confirms.