cc-os/plugins/os-adr/eval-b/bin/run

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#!/usr/bin/env bash
# Headless runner for Eval B — the ONLY valid execution mode for these
# scenarios (design.md Decision 1): a fresh `claude -p` process with cwd set
# to the sandbox, so the real SessionStart hook fires for the model under
# test. Never run these prompts via in-session Agent-tool subagents.
#
# Usage: run <scenario> <model> <workdir> [--reps N] [--results FILE]
#
# scenario W1|W2|W3|R1|R2|R3|R4|R4-nograph
# model haiku|sonnet|opus|...
# workdir sandboxes are created under here as <scenario>-<model>-rN
# --reps repeated executions of the same cell (default 1; the grid-run
# stage decides the real default — design.md Decision 5)
#
# Each rep: fresh sandbox -> claude -p with ONLY the scenario's task prompt
# (no system-level hints) -> full stream-json transcript saved to
# <sandbox>/transcript.jsonl -> bin/check appends one TSV row to RESULTS.
set -euo pipefail
SCENARIO="${1:?usage: run <scenario> <model> <workdir> [--reps N] [--results FILE]}"
MODEL="${2:?model required (haiku|sonnet|...)}"
WORKDIR="${3:?workdir required}"
shift 3
REPS=1
RESULTS=""
while [ $# -gt 0 ]; do
case "$1" in
--reps) REPS="${2:?--reps needs a number}"; shift 2 ;;
--results) RESULTS="${2:?--results needs a path}"; shift 2 ;;
*) echo "unknown option: $1" >&2; exit 2 ;;
esac
done
EVAL_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
SCENARIO_FILE="$EVAL_ROOT/scenarios/${SCENARIO%-nograph}.md"
[ -f "$SCENARIO_FILE" ] || { echo "unknown scenario: $SCENARIO" >&2; exit 2; }
mkdir -p "$WORKDIR"
RESULTS="${RESULTS:-$WORKDIR/results.tsv}"
TASK="$(awk '/^## Task/{found=1; next} found' "$SCENARIO_FILE")"
for rep in $(seq 1 "$REPS"); do
SANDBOX="$WORKDIR/$SCENARIO-$MODEL-r$rep"
"$EVAL_ROOT/bin/sandbox" "$SCENARIO" "$SANDBOX" >/dev/null
# cwd = sandbox: the SessionStart hook resolves the project root from here.
(cd "$SANDBOX" && claude -p \
--model "$MODEL" \
--output-format stream-json --verbose \
--dangerously-skip-permissions \
"$TASK" > transcript.jsonl) || echo "claude exited non-zero for $SANDBOX" >&2
"$EVAL_ROOT/bin/check" "$SCENARIO" "$SANDBOX" --tsv "$MODEL" | tee -a "$RESULTS"
done