feat: add everything-claude-code ECC bundle (.claude/commands/add-or-update-skill-documentation.md)

.claude/commands/add-or-update-skill-documentation.md

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+---
+name: add-or-update-skill-documentation
+description: Workflow command scaffold for add-or-update-skill-documentation in everything-claude-code.
+allowed_tools: ["Bash", "Read", "Write", "Grep", "Glob"]
+---
+
+# /add-or-update-skill-documentation
+
+Use this workflow when working on **add-or-update-skill-documentation** in `everything-claude-code`.
+
+## Goal
+
+Adds a new skill or updates documentation for an existing skill, typically in the form of a SKILL.md file under skills/ or skills/*/SKILL.md.
+
+## Common Files
+
+- `skills/*/SKILL.md`
+- `AGENTS.md`
+- `README.md`
+
+## Suggested Sequence
+
+1. Understand the current state and failure mode before editing.
+2. Make the smallest coherent change that satisfies the workflow goal.
+3. Run the most relevant verification for touched files.
+4. Summarize what changed and what still needs review.
+
+## Typical Commit Signals
+
+- Create or update skills/<skill-name>/SKILL.md
+- Optionally update AGENTS.md or README.md to reflect new skill
+- Optionally add architecture diagrams or implementation notes
+
+## Notes
+
+- Treat this as a scaffold, not a hard-coded script.
+- Update the command if the workflow evolves materially.