The multi-backend, multi-frontend, multi-plan, multi-execute and multi-workflow commands were copied from ccg-workflow's command templates, which carry {{LITE_MODE_FLAG}} and {{GEMINI_MODEL_FLAG}} for that project's installer to substitute. ECC has no substitution step, so bash passed the literal token to codeagent-wrapper as a positional argument, the backend name landed in the working-directory slot, and every call exited 1. Remove the tokens from the five commands and the ja-JP, tr and zh-CN docs copies so the wrapper receives a plain --backend invocation. A regression test scans every multi-* command and translated copy for codeagent-wrapper lines that still contain a {{TEMPLATE}} token.
Fixes#3595
The existing frontmatter test only checks that a description is present, so all
three array-valued argument-hint declarations passed CI on main. Harnesses that
type-check the field reject the whole file, which is how the commands went
missing without anyone noticing.
Add an assertion scoped to argument-hint only. A blanket 'no flow sequences in
frontmatter' rule would be wrong: allowed-tools is a legitimate list in
marketing-campaign.md and skill-create.md.
Verified both directions -- on main the new test fails and names exactly
code-review.md, cost-report.md, and orch-review.md; on this branch the suite
passes 96/96.
