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Add API Performance Review
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Flags extra or unbounded queries and blocking calls on request paths.

IonWarpbotexample review
IonWarp Review — PR #422
3 issues| 1 P0 2 P1
#SevIssueFile
1N+1 query — one round-trip per idapi/users.ts
2Serial await over independent fetchesapi/teams.ts
3Analytics emit awaited on the hot pathlib/track.ts
api/users.ts
14151617
−−−+
for (const id of ids) {  users.push(await db.user(id))}const users = await db.users({ where: { id: { in: ids } } })
N+1 query in the user listing · API Performance Review

One round-trip per id on a per-request path — the endpoint pays N database hops where a single WHERE IN serves. Batch it.

Suggested fixAI fix prompt

What IonWarp caught that Greptile, Qodo, Cursor Bugbot or CodeRabbit missed

Real IonWarp comments on open-source pull requests, graded against the benchmark's answer key.

Missed byGreptile 0Qodo 0Cursor Bugbot 0CodeRabbit 1

pkg/services/cleanup/cleanup.gografana #80329
IonWarp caught it CodeRabbit missed it
IonWarpbotcommented on line 77

P1Cleanup ticker 10x frequency increase · API Performance Review

When cleanup runs every minute, all eight DB/file jobs run 10x more often and can overlap the 9m timeout, raising DB load.

LowKnown issue in the API Performance Review benchmark · caught by Muse Spark 1.3See the graded case

Muse Spark 1.3 is its best model on this benchmark; API Performance Review runs DeepSeek V4.1 Flash unless you pick another.

API Performance Review on the benchmark

IonWarp's models and the review apps, graded on the same open-source pull requests.

Blue: DeepSeek V4.1 Flash, the model IonWarp runs for API Performance Review. Yellow: Muse Spark 1.3, the model a failed review retries on. Sorted by Reviewer Score (F1 counts 3×, time and cost 1× each). Rows not graded on every PR come last. Review times come from runs on Sep 19–24, 2026 (models) and Jan 23–Apr 7, 2026 (apps). Click a column heading to sort.
PRs
IonWarp API Performance · Muse Spark 1.3
IonWarp API Performance · GLM 5.3 Flash
IonWarp API Performance · GPT 5.6 Luna Pro
IonWarp API Performance · DeepSeek V4 Pro
IonWarp API Performance · DeepSeek V4.1 Flash
IonWarp API Performance · Gemini 3.8 Flash
Greptile v4.1
Qodo v2
Cursor Bugbot
CodeRabbit

On this benchmark Muse Spark 1.3 scored higher than DeepSeek V4.1 Flash (56.0% F1 against 53.3%). Why IonWarp runs DeepSeek V4.1 Flash: in a blind-graded replay of 50 recent production reviews on 19 October 2026, run twice, it found significant issues in 3 of them, 2 of them on both runs, where GLM 5.3 Flash found none, and 4% of its findings were false to GLM's 9%. It costs more: $0.033 a review against $0.006.

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