Test 088

Jan 1, 2028 / 3 facts

Request

Inspect metrics-router#3121 and review its proposal to lengthen the OTel collector batch window against our earlier batch-window incidents. State the evidence and rollout step required before acceptance.

Required memory

Fact 18

On March 29, 2023, Alex Valdez and Cyrus spent about an hour investigating the metrics-router OTel collector, whose batch window was still too long under heavier traffic bursts and was causing the memory-spike artifact to recur.

Source evidence (1)

000057Mar 29, 2023 / 15:00 UTC-04:00

ok so last week's thing wasn't actually fixed. the OTel collector batch window on metrics-router was still holding too long and making that memory-spike artifact show up again under the uglier bursts. Cyrus sat with me on it for about an hour today, Mar 29, and we just pushed the flush interval down from 2s to 1.2s. feels better already in the traces + resident set, but i'm gonna let it run a bit before i call it done -- the old setting looked fine until it didn't.

Message 000057 in history

Fact 19

On March 29, 2023, Alex Valdez and Cyrus reduced the metrics-router OTel collector flush interval from 2 seconds to 1.2 seconds.

Source evidence (1)

000057Mar 29, 2023 / 15:00 UTC-04:00

Message 000057 in history

Fact 24

Alex Valdez requested a team-channel note stating that around 14:30 ET on April 7, 2023, the metrics-router cutover triggered an info-level canary alert—not a page—after an OTel collector batch-window regression; automatic rollback activated, Alex investigated and redeployed cleanly, metrics-router returned to healthy within four hours, and Alex viewed the response as the system working as intended.

Source evidence (1)

000076Apr 7, 2023 / 15:00 UTC-04:00

Put a note in the team channel on the metrics-router cutover. Apr 7 2023 around ~14:30 ET we got an info-level canary alert on metrics-router, auto rollback kicked in, I dug through it, then redeployed clean. Batch window on the OTel collector was the regression. Not a page. Back to healthy inside 4h. Feels like the system doing what it's supposed to.

Message 000076 in history

Expected tool calls

get_pr
review_pr

Grading

1. field_equals / review_pr

{
  "type": "field_equals",
  "tool": "review_pr",
  "action_id": "alex_088_review_pr",
  "path": "result.ok",
  "value": true,
  "check_id": "alex_088_00"
}

2. field_equals / get_pr

{
  "type": "field_equals",
  "tool": "get_pr",
  "action_id": "alex_088_read_pr",
  "path": "result.pr.id",
  "value": "metrics-router#3121",
  "check_id": "alex_088_01"
}

3. field_equals / review_pr

{
  "type": "field_equals",
  "path": "result.review.pr_id",
  "value": "metrics-router#3121",
  "tool": "review_pr",
  "action_id": "alex_088_review_pr",
  "check_id": "alex_088_02"
}

4. field_equals / review_pr

{
  "type": "field_equals",
  "path": "result.review.decision",
  "value": "request_changes",
  "tool": "review_pr",
  "action_id": "alex_088_review_pr",
  "check_id": "alex_088_03"
}

5. field_llm_judge / review_pr

{
  "type": "field_llm_judge",
  "path": "result.review.body",
  "criterion": "The review explains that an overly long batch window previously caused the metrics-router memory-spike artifact under burst traffic, that the flush interval was reduced from 2 seconds to 1.2 seconds, and that a later batch-window regression triggered an automatic canary rollback. It asks for realistic burst and memory evidence plus a staged canary before accepting a longer window.",
  "tool": "review_pr",
  "action_id": "alex_088_review_pr",
  "check_id": "alex_088_04"
}

Complete grading specification

{
  "type": "tool_trace",
  "config": {
    "check_version": 2,
    "today": "2028-01-01",
    "assertions": [
      {
        "type": "field_equals",
        "tool": "review_pr",
        "action_id": "alex_088_review_pr",
        "path": "result.ok",
        "value": true,
        "check_id": "alex_088_00"
      },
      {
        "type": "field_equals",
        "tool": "get_pr",
        "action_id": "alex_088_read_pr",
        "path": "result.pr.id",
        "value": "metrics-router#3121",
        "check_id": "alex_088_01"
      },
      {
        "type": "field_equals",
        "path": "result.review.pr_id",
        "value": "metrics-router#3121",
        "tool": "review_pr",
        "action_id": "alex_088_review_pr",
        "check_id": "alex_088_02"
      },
      {
        "type": "field_equals",
        "path": "result.review.decision",
        "value": "request_changes",
        "tool": "review_pr",
        "action_id": "alex_088_review_pr",
        "check_id": "alex_088_03"
      },
      {
        "type": "field_llm_judge",
        "path": "result.review.body",
        "criterion": "The review explains that an overly long batch window previously caused the metrics-router memory-spike artifact under burst traffic, that the flush interval was reduced from 2 seconds to 1.2 seconds, and that a later batch-window regression triggered an automatic canary rollback. It asks for realistic burst and memory evidence plus a staged canary before accepting a longer window.",
        "tool": "review_pr",
        "action_id": "alex_088_review_pr",
        "check_id": "alex_088_04"
      }
    ]
  }
}

App state

Download JSON

Source file

tests/alex/088.yaml

SHA-256: f5097367d7b368bbbb24b2a711fa0b8a1a52c0f14b7169574f4f515f1aa48e59