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⚡ Bolt: [performance improvement] Parallelize GitHub API requests in agent sweep - #1066

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bolt-parallelize-agent-sweep-2018896077901014550
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⚡ Bolt: [performance improvement] Parallelize GitHub API requests in agent sweep#1066
seonghobae wants to merge 2 commits into
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bolt-parallelize-agent-sweep-2018896077901014550

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@seonghobae

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💡 What: Refactored list_recent_pull_requests in agent_mention_sweep.py to use concurrent.futures.ThreadPoolExecutor bounded by max_workers=10. This changes the API calls for fetching pull requests per repository from a sequential iteration to parallel execution, returning the collected results. We ensured safe operation by managing the ThreadPoolExecutor manually with a try/finally block for cleanup instead of using a context manager, preventing hangs.

🎯 Why: To fix an N+1 API bottleneck where the script processes multiple repositories sequentially.

📊 Impact: Reduces total PR fetching time significantly (potentially by up to ~10x) for environments with multiple accessible repositories, lowering overall script latency.

🔬 Measurement: Total script execution time can be benchmarked with a large pool of accessible repositories comparing before and after the patch. We ran the test suite (pytest tests/) and maintained 100% line coverage for the target file.


PR created automatically by Jules for task 2018896077901014550 started by @seonghobae

…agent sweep

💡 What: Refactored `list_recent_pull_requests` in `agent_mention_sweep.py` to use `concurrent.futures.ThreadPoolExecutor` bounded by `max_workers=10`. This changes the API calls for fetching pull requests per repository from a sequential iteration to parallel execution, returning the collected results. We ensured safe operation by managing the ThreadPoolExecutor manually with a try/finally block for cleanup instead of using a context manager, preventing hangs.

🎯 Why: To fix an N+1 API bottleneck where the script processes multiple repositories sequentially.

📊 Impact: Reduces total PR fetching time significantly (potentially by up to ~10x) for environments with multiple accessible repositories, lowering overall script latency.

🔬 Measurement: Total script execution time can be benchmarked with a large pool of accessible repositories comparing before and after the patch. We ran the test suite (`pytest tests/`) and maintained 100% line coverage for the target file.
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…agent sweep

💡 What: Refactored `list_recent_pull_requests` in `agent_mention_sweep.py` to use `concurrent.futures.ThreadPoolExecutor` bounded by `max_workers=10`. This changes the API calls for fetching pull requests per repository from a sequential iteration to parallel execution, returning the collected results. Added missing docstring to `fetch_repo_prs` function to pass `interrogate` coverage.
🎯 Why: To fix an N+1 API bottleneck where the script processes multiple repositories sequentially.
📊 Impact: Reduces total PR fetching time significantly (potentially by up to ~10x) for environments with multiple accessible repositories, lowering overall script latency.
🔬 Measurement: Maintained 100% `interrogate` and test line coverage for the target file. Test suite passes successfully.
@seonghobae

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Current-head triage for e5d0cf2: the PR is DIRTY against stale base c47afc2 and has no current review decision. The focused current-main implementation has been validated and published as successor PR #1144 (head 9e5d783), which also retains the shell=False security hardening and valid workflow concurrency. No stale branch was force-pushed, approved, or merged.

@google-labs-jules

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Current-head triage for e5d0cf2: the PR is DIRTY against stale base c47afc2 and has no current review decision. The focused current-main implementation has been validated and published as successor PR #1144 (head 9e5d783), which also retains the shell=False security hardening and valid workflow concurrency. No stale branch was force-pushed, approved, or merged.

Understood. Acknowledging that this work is now obsolete and superseded by PR #1144, stopping work on this task.

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Superseded by #1144. #1066 parallelizes repository fanout with 10 workers on an old/conflicting base; #1144 is the current-main successor with four bounded standard-library workers, deterministic ordering, generator cancellation, explicit shell=False, focused regression coverage, and auto-merge armed. Closing this older overlapping implementation avoids two competing fanout contracts.

@google-labs-jules

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Superseded by #1144. #1066 parallelizes repository fanout with 10 workers on an old/conflicting base; #1144 is the current-main successor with four bounded standard-library workers, deterministic ordering, generator cancellation, explicit shell=False, focused regression coverage, and auto-merge armed. Closing this older overlapping implementation avoids two competing fanout contracts.

Understood. Acknowledging that this work is now obsolete and superseded by PR #1144, stopping work on this task.

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Closing as superseded by the focused current-main successor #1144. This branch is based on obsolete main@c47afc2..., is no longer mechanically mergeable, and uses a broader ten-worker fanout without the exact-current timeout and queue-preservation repair now being validated in #1144. No predecessor check or review transfers. Keep a single writer on #1144, which owns bounded repository fanout, main-thread error accounting, finite gh api execution, deterministic output, and the protected interactive/sweep queue contract.

@seonghobae seonghobae closed this Aug 19, 2026
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Closing as superseded by the focused current-main successor #1144. This branch is based on obsolete main@c47afc2..., is no longer mechanically mergeable, and uses a broader ten-worker fanout without the exact-current timeout and queue-preservation repair now being validated in #1144. No predecessor check or review transfers. Keep a single writer on #1144, which owns bounded repository fanout, main-thread error accounting, finite gh api execution, deterministic output, and the protected interactive/sweep queue contract.

Understood. Acknowledging that this work is now obsolete and superseded by PR #1144, stopping work on this task.

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