Add Runloop rollout processor integration

[tode-rl]

Summary

• Add RunloopRolloutProcessor as a first-class pytest rollout processor that provisions or attaches to a Runloop Devbox, exposes a tunnel, starts a remote rollout server, and delegates row processing to RemoteRolloutProcessor.
• Add the optional runloop extra for runloop-api-client without changing core dependencies.
• Add unit tests, documentation, .env guidance, and a minimal Runloop remote rollout example.

Notes

• No changes to default rollout behavior.
• The processor reuses the existing RemoteRolloutProcessor and Fireworks tracing protocol after Runloop setup.
• Live Runloop smoke testing is optional and is not required for normal CI.

Verification

• uv sync --extra runloop --extra dev
• uv run pytest tests/pytest/test_runloop_rollout_processor.py
• uv run ruff check eval_protocol/pytest/runloop_rollout_processor.py tests/pytest/test_runloop_rollout_processor.py examples/runloop_remote_rollout/server.py examples/runloop_remote_rollout/test_eval.py eval_protocol/pytest/init.py eval_protocol/init.py
• uv run pytest --collect-only examples/runloop_remote_rollout/test_eval.py

Live smoke test not run: FIREWORKS_API_KEY and RUNLOOP_BLUEPRINT_ID are not set in this environment.

---

Note

Low Risk
New optional integration behind an extra dependency; rollout execution still delegates to RemoteRolloutProcessor without changing default processors.

Overview
Adds Runloop as an optional rollout path: a new RunloopRolloutProcessor provisions or attaches to a Runloop Devbox, tunnels a user-supplied server command, then hands off to the existing RemoteRolloutProcessor so /init and Fireworks tracing behavior stay unchanged.

Install via eval-protocol[runloop] (runloop-api-client). Public exports, .env.example, integration docs, unit tests, and a minimal FastAPI example (optional live smoke when RUNLOOP_BLUEPRINT_ID is set) document the flow. Devboxes created from a blueprint can shut down on cleanup; attached devboxes are left running.

^{Reviewed by Cursor Bugbot for commit d0d1ce2. Bugbot is set up for automated code reviews on this repo. Configure here.}

[cursor]

Cursor Bugbot has reviewed your changes and found 2 potential issues.

^{Reviewed by Cursor Bugbot for commit d0d1ce2. Configure here.}

[cursor]

Partial setup leaks Devboxes

Medium Severity

setup only skips work when _remote_processor is set, so a failed run can leave an owned Devbox running and a retry can call create_from_blueprint_id again. @evaluation_test calls setup before its acleanupfinally, so startup errors (e.g. TimeoutError from _wait_for_server_startup) often never trigger cleanup.

^{Reviewed by Cursor Bugbot for commit d0d1ce2. Configure here.}

[cursor]

Startup treats HTTP errors ready

Medium Severity

_wait_for_server_startup returns immediately on any urllib.error.HTTPError, including 502/503 from the Runloop tunnel before the rollout server responds. Setup can finish while the app is still down, so later /init calls fail after the startup wait already succeeded.

^{Reviewed by Cursor Bugbot for commit d0d1ce2. Configure here.}

[tode-rl]

Scope

Runloop rollout processor integration, focused on Cursor Bugbot findings and the Runloop blueprint setup path.

Fixed

• Made setup transactional: owned Devboxes are shut down if setup fails before RemoteRolloutProcessor is created, while attached existing Devboxes are preserved. [eval_protocol/pytest/runloop_rollout_processor.py]
• Changed startup polling to retry 5xx tunnel/server responses instead of treating them as ready; non-5xx responses still indicate an app is answering. [eval_protocol/pytest/runloop_rollout_processor.py]
• Added a blueprint creation helper and docs for empty Runloop accounts that do not yet have a blueprint. [examples/runloop_remote_rollout/create_blueprint.py]

Tests added

• Added regression coverage for owned Devbox cleanup on startup failure, existing Devbox preservation, and 5xx startup retry behavior. [tests/pytest/test_runloop_rollout_processor.py]

Verification:

• typecheck: uv run basedpyright eval_protocol/pytest/runloop_rollout_processor.py examples/runloop_remote_rollout/create_blueprint.py
• tests: uv run pytest tests/pytest/test_runloop_rollout_processor.py (10 passed)
• lint: uv run ruff check eval_protocol/pytest/runloop_rollout_processor.py tests/pytest/test_runloop_rollout_processor.py examples/runloop_remote_rollout/server.py examples/runloop_remote_rollout/test_eval.py examples/runloop_remote_rollout/create_blueprint.py eval_protocol/pytest/init.py eval_protocol/init.py
• example collection: uv run pytest --collect-only examples/runloop_remote_rollout/test_eval.py
• helper smoke: uv run python examples/runloop_remote_rollout/create_blueprint.py --help

Live Runloop smoke still not run because FIREWORKS_API_KEY and RUNLOOP_BLUEPRINT_ID are not set in this environment.

[tode-rl]

Verification:

• typecheck: pass (uv run basedpyright eval_protocol/pytest/runloop_rollout_processor.py tests/pytest/test_runloop_rollout_processor.py examples/runloop_remote_rollout/create_blueprint.py tests/pytest/test_runloop_remote_rollout_blueprint.py)
• tests: 15 passed / 0 failed (uv run pytest tests/pytest/test_runloop_rollout_processor.py tests/pytest/test_runloop_remote_rollout_blueprint.py); 1 example smoke test collected
• lint: clean (uv run ruff check ... on touched Python files)
• prettier: clean / Python formatter clean (uv run ruff format --check ... after formatting 1 in-scope file)

Scope

Add Runloop rollout processor integration (from PR #454 title/body).

Fixed

• Replaced the example blueprint Docker build-context path with Runloop blueprint file_mounts for /home/user/rollout/server.py plus setup commands, so the fixed-name blueprint contains the local GET / and POST /init server used by the example. [examples/runloop_remote_rollout/create_blueprint.py:104]
• Fixed fixed-name blueprint reuse by resolving SDK blueprint wrappers through get_info() before checking status/create time. [examples/runloop_remote_rollout/create_blueprint.py:65]
• Aligned the example server command/docs with the mounted blueprint path. [examples/runloop_remote_rollout/constants.py:6]

Tests added

• Added blueprint helper tests for mounted / and /init server contents, wrapper-based idempotency, existing blueprint reuse, and file_mounts creation parameters. [tests/pytest/test_runloop_remote_rollout_blueprint.py:39]

Skipped / deferred

• Live Runloop smoke test was not run; it requires real RUNLOOP_API_KEY and FIREWORKS_API_KEY credentials.