feat: add /codex:auto-calling toggle for model invocation (#167)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: BryanBorck

plugins/codex/commands/auto-calling.md

@@ -0,0 +1,19 @@
+---
+description: Toggle whether Claude can invoke Codex commands programmatically (e.g. from /loop or automated workflows)
+argument-hint: '[enable|disable]'
+allowed-tools: Bash, Glob, Grep, Read
+---
+
+Toggle `disable-model-invocation` on Codex plugin commands.
+
+The argument is `$ARGUMENTS`. If empty, check current state and report it.
+
+Target files: all `.md` files in `${CLAUDE_PLUGIN_ROOT}/commands/` that have `disable-model-invocation: true`: `review.md`, `adversarial-review.md`, `cancel.md`, `result.md`, `status.md`.
+
+## Rules
+
+- **`enable`**: Remove the line `disable-model-invocation: true` from the YAML frontmatter of each target file. This allows Claude to invoke these commands programmatically.
+- **`disable`**: Add `disable-model-invocation: true` back to the YAML frontmatter (after the `description:` line) of each target file. This restores the default behavior.
+- **No argument**: Read the target files and report whether auto-calling is currently enabled or disabled.
+
+After making changes, report which files were modified.