#!/bin/sh
# LLM backend for portal-trainer on Claude Code's own login (a Max or
# Pro subscription): prompt on stdin, text on stdout. No API key
# needed: an ANTHROPIC_API_KEY in the environment would outrank the
# login, so it is dropped here. Log the CLI in once with
# `claude auth login`; `claude auth status` shows what it uses.
# MODEL is an alias or id (sonnet, opus, claude-sonnet-5); EFFORT is
# low, medium or high. Not --bare: that mode skips the stored login.
#
# The generator's SEED and TEMPERATURE hints cannot be honoured;
# FORMAT=json is turned into an instruction.
set -eu
unset ANTHROPIC_API_KEY ANTHROPIC_AUTH_TOKEN CLAUDECODE CLAUDE_CODE_ENTRYPOINT
prompt=$(cat)
if [ "${FORMAT:-}" = json ]; then
  prompt="$prompt

Reply with the JSON object only, no prose, no code fences."
fi
printf '%s' "$prompt" | claude -p --model "${MODEL:-sonnet}" --effort "${EFFORT:-low}" \
  --output-format text --permission-mode dontAsk --no-session-persistence \
  --tools ""