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usernameandfactory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>
476d7e11b0
Add ruff linter/formatter with pre-commit hooks, pytest-cov with 60% coverage threshold, CODEOWNERS, Dependabot for pip/GHA updates, and .env.example. Auto-fix existing ruff violations across eval_runner/ and scripts/. 10 agent-readiness criteria resolved: lint_config, formatter, pre_commit_hooks, naming_consistency, dead_code_detection, test_coverage_thresholds, test_performance_tracking, codeowners, dependency_update_automation, env_template. Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>
127 lines
4.3 KiB
Python
127 lines
4.3 KiB
Python
"""Subprocess-based adapter for non-interactive CLI agent harnesses.
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Executes a configurable command with the case prompt piped to stdin or passed
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as an argument. Captures stdout as the response, stderr for diagnostics, and
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records exit code, timing, and any artifacts produced in the output directory.
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This is the first real harness adapter. It supports any agent CLI that can:
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- accept a prompt non-interactively (via stdin or --prompt flag)
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- write its response to stdout
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- operate within a working directory
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Configuration via harness_config:
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command: list[str] — the command to run (e.g. ["opencode", "--print"])
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prompt_mode: "stdin" | "arg" — how to pass the prompt (default: "stdin")
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prompt_flag: str — flag name if prompt_mode is "arg" (default: "--prompt")
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timeout_seconds: int — max wall time (default: 120)
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extra_args: list[str] — additional CLI arguments
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"""
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from __future__ import annotations
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import os
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import subprocess
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import time
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from .models import AdapterInput, AdapterOutput, ExitStatus, ToolEvent
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class CliSubprocessAdapter:
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"""Runs an agent CLI as a subprocess and normalizes the result."""
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def __init__(
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self,
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command: list[str],
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*,
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prompt_mode: str = "stdin",
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prompt_flag: str = "--prompt",
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timeout_seconds: int = 120,
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extra_args: list[str] | None = None,
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):
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self._command = command
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self._prompt_mode = prompt_mode
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self._prompt_flag = prompt_flag
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self._timeout_seconds = timeout_seconds
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self._extra_args = extra_args or []
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@property
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def name(self) -> str:
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return "cli-subprocess"
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@property
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def version(self) -> str:
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return "0.1.0"
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def execute(self, input: AdapterInput) -> AdapterOutput:
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timeout = input.limits.get("timeout_seconds", self._timeout_seconds)
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cmd = list(self._command) + list(self._extra_args)
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stdin_data: str | None = None
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if self._prompt_mode == "stdin":
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stdin_data = input.case.prompt
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elif self._prompt_mode == "arg":
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cmd += [self._prompt_flag, input.case.prompt]
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env = dict(os.environ)
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env.update(input.env)
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input.work_dir.mkdir(parents=True, exist_ok=True)
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input.output_dir.mkdir(parents=True, exist_ok=True)
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start = time.monotonic()
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try:
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proc = subprocess.run(
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cmd,
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input=stdin_data,
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capture_output=True,
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text=True,
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timeout=timeout,
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cwd=str(input.work_dir),
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env=env,
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)
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elapsed_ms = (time.monotonic() - start) * 1000
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exit_status = ExitStatus.COMPLETED if proc.returncode == 0 else ExitStatus.ERROR
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artifacts = [f.name for f in input.output_dir.iterdir() if f.is_file()]
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tool_events = []
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if proc.stderr:
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tool_events.append(
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ToolEvent(
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name="subprocess_stderr",
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arguments={"command": " ".join(cmd)},
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result_summary=proc.stderr[:500],
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)
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)
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return AdapterOutput(
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exit_status=exit_status,
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response=proc.stdout or None,
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activation_evidence=None,
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artifacts=artifacts,
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environment_state={"returncode": proc.returncode},
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tool_events=tool_events,
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duration_ms=elapsed_ms,
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token_usage=None,
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raw_trace_path=None,
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error=proc.stderr[:1000] if proc.returncode != 0 else None,
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)
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except subprocess.TimeoutExpired:
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elapsed_ms = (time.monotonic() - start) * 1000
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return AdapterOutput(
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exit_status=ExitStatus.TIMEOUT,
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response=None,
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error=f"process exceeded {timeout}s timeout",
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duration_ms=elapsed_ms,
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)
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except FileNotFoundError as exc:
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elapsed_ms = (time.monotonic() - start) * 1000
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return AdapterOutput(
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exit_status=ExitStatus.ERROR,
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response=None,
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error=f"command not found: {exc}",
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duration_ms=elapsed_ms,
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)
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