BEFORE

Greptile Summary

This PR tightens scenario 009's validation by replacing coarse required_keywords with more precise signals (connection pool leak, Client:ClientRead) and introducing forbidden_keywords to prevent the agent from splitting correlated symptoms into independent root causes. A new QA_VALIDATION.md file documents the expected causal chain and passing criteria.

• P1 — forbidden keyword self-contradiction: independent faults is listed in forbidden_keywords, but the scenario's own model_response causal chain reads \"are not two independent faults\". Because score_result uses plain substring matching (_normalize_text(kw) in normalized_output), an agent that produces this ideal phrasing will trigger a false failure. The same risk exists for contributing cause (a correct response saying "storage is not a contributing cause" would also be penalized). The model response or the forbidden phrase wording should be adjusted so correct negations are not inadvertently caught.

Confidence Score: 4/5

Safe to merge after resolving the substring-matching contradiction between the forbidden keyword 'independent faults' and its appearance in the golden model response's causal chain.

One P1 finding: the golden model_response causal chain contains 'independent faults' verbatim, which is also in forbidden_keywords. Because the scorer uses plain substring matching, an agent that correctly says 'these are NOT independent faults' would be incorrectly penalized. All remaining observations are P2 or lower, so the score is 4 rather than 5.

tests/synthetic/rds_postgres/009-dual-fault-connection-cpu/answer.yml — the forbidden_keywords list and model_response causal chain are logically inconsistent.

Important Files Changed

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[Agent Final State\nroot_cause / validated_claims\nnon_validated_claims / causal_chain] --> B[score_result]
    B --> C{required_keywords\nall present?}
    C -- No --> F1[FAIL: missing keywords]
    C -- Yes --> D{forbidden_categories\nhit?}
    D -- Yes --> F2[FAIL: forbidden category]
    D -- No --> E{forbidden_keywords\nsubstring match?}
    E -- Yes --> F3[FAIL: forbidden keyword\ne.g. 'independent faults'\neven in negation context]
    E -- No --> G{required_evidence\npresent?}
    G -- No --> F4[FAIL: missing evidence]
    G -- Yes --> PASS[PASS]
    style F3 fill:#f66,color:#fff

_{Reviews (1): Last reviewed commit: "synthetic: fix shared root cause reasoni..." | Re-trigger Greptile}

AFTER

@cerencamkiran looks good. could you fix the review comments?

Verified locally:

Greptile P1 is genuinely fixed. Grepped the final model_response for every new forbidden substring (two independent problems, separate root causes, two root causes) zero matches. Earlier independent faults had 1 match in the gold via "not two independent faults"; new phrasing avoids that.
All 6 required_keywords appear in the gold model_response.
QA_VALIDATION.md reads cleanly and matches the YAML rules.
No production code touched.
Nit (not blocking): the matcher in run_suite.py:275 is pure substring "these are not two independent problems" would still false-fail. Worth a follow-up to make it negation-aware, but the new phrases are unusual enough to be a reasonable pragmatic fix.

LGTM.

Thanks for validating this @hamzzaaamalik. I’ll follow up on the matcher and make it negation-aware as a next step.

btw @muddlebee, i already fixed them

⚡ LGTM → Merged. @cerencamkiran, your work is in. Every commit counts — thank you for this one.

👋 Join us on Discord - OpenSRE : hang out, contribute, or hunt for features and issues. Everyone's welcome.

@cerencamkiran thank you so much. Good to see so much of valuable contributions coming from you..

Thank you kindly @muddlebee, really appreciate it! I’ve really been enjoying the project and learning a lot while contributing. :)