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

.claude/commands/add-or-update-command.md

@@ -0,0 +1,36 @@
+---
+name: add-or-update-command
+description: Workflow command scaffold for add-or-update-command in everything-claude-code.
+allowed_tools: ["Bash", "Read", "Write", "Grep", "Glob"]
+---
+
+# /add-or-update-command
+
+Use this workflow when working on **add-or-update-command** in `everything-claude-code`.
+
+## Goal
+
+Adds or updates a command markdown file, defining new CLI commands or workflows.
+
+## Common Files
+
+- `commands/*.md`
+- `.claude/commands/*.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 a markdown file in the commands/ or .claude/commands/ directory.
+- Document the command's usage, arguments, and output.
+- Optionally update related documentation or index files.
+
+## Notes
+
+- Treat this as a scaffold, not a hard-coded script.
+- Update the command if the workflow evolves materially.