CLI Runner

In T3 Code, run all model calls as internal subagents under shared/references/host-model-execution.md. If the approved route is unavailable, report it. Do not execute this runner in T3 Code.

Run one prompt on one model through its vendor CLI. A host that runs the model natively takes precedence (shared/references/host-model-execution.md). Seat fidelity, read-only roles, session discipline, and long calls follow shared/references/runner-common.md. Run from the repository; <cli> --help lists the rest.

Claude: claude

claude -p "<prompt>" --model <model> --effort <effort> --output-format json \
  --permission-mode plan --tools Read,Glob,Grep

• The implementer replaces the last line with --permission-mode acceptEdits.
• For a long brief, pipe it through stdin: claude -p --model … < brief.md.
• Continue: the result's session_id is the role's context; send its next turn with --resume <session_id>.
• Result: read result. Confirm modelUsage names the requested model, and never pass --fallback-model. is_error: true or another model leaves the seat unanswered.