[Wenjie Fan (gggdttt)]

Summary

Adds code-review gold answers from explicit BCApps PR feedback.

Negative guards use exact source-file patches at immutable reviewed revisions, not invented synthetic code. Their targets are omitted from both expected and ignored comments; new negative-only entries have no expected findings.
Existing eligible gold answers are reused without changing their payloads.

Accepted findings

Rejected findings

• Rejected precision guard: [MCP] Prepare Data Query Tools for billing BCApps#12207 (comment)

Knowledge dependency

• Related BCQuality improvement: knowledge: improve review precision from BCApps PR 12207-neg-pr12207-20261020 feedback BCQuality#242

Validation

See the gate-owned offline evaluation section below.

Generated by the BC-ALAgentsInternal self-improvement workflow.

Offline evaluation: inconclusive

No knowledge change or no baseline false-positive reproduction. This pair cannot establish target suppression.

Preparation attempt 1: validated.

Selection: new. New: synthetic__breaking-access-unsupported-page-property-01. Reused (complete payloads): ``.

• synthetic__breaking-access-unsupported-page-property-01 / false_positive_guard / [MCP] Prepare Data Query Tools for billing BCApps#12207 (comment): The review agent recommended adding 'Access = Internal;' to the new page object to narrow its exported surface, but Access is not a supported property on page objects in AL and the compiler rejects it with error AL0124 (documented supported object types for Access do not include Page). The developer reply confirms this makes the suggestion inapplicable, so the entry's expected_comments is empty and this guards against re-flagging the same unsupported-property suggestion on a page's Access property without encoding it as either an expected or ignored comment.
  Coverage references and outcome shapes are validated mechanically. Semantic equivalence, severity calibration and recommendation quality are NOT proved by these checks or a matching F1.

Common engine code: ecf8e31759d6ddd6d78e3a0b7836b40134368009; dataset SHA256: A99E41E40A33234EBBA8B4BE4DBC721D5AAC2204C16EFEB5BB7BA0EBA545E8DE.
Model: gpt-5.6-luna; judge: gpt-5.3-codex. Exact D: synthetic__breaking-access-unsupported-page-property-01.
Dataset base: 7c98b750c200d88ed0a81daaea5e71184a3af01b; candidate: f0b50eb0977fe67834c961d60d18b5688b6f0f98.

Arm	Evaluation commit	Engine pin	Knowledge pin
baseline	6c5cdf9cc588fd2488cd86a2ff7d0c2a040e70ed	edd46ef34e9b38d7cc2fc3e1c1c806ff8e476ab6	f820aa1e8515a6483b828d9a5b1c55112461b4d9
candidate	c48f1d52b6373f8194225ee9cc69b3a794ff77b5	858748bdb9324c32dcf88c701192f7b23a189cff	616c617a1c7fad907ad2fc8f3d097958a80b68e1

Baseline

Run: https://github.com/microsoft/BC-Bench/actions/runs/39417558252; conclusion: success; wall clock: 6.8 minutes.
Raw findings and runtime pin proofs are retained in the self-improvement-feedback artifact and the linked evaluation run.

Entry	Expected	Generated	Missed	Unexpected	F1	AI credits	Agent seconds
synthetic__breaking-access-unsupported-page-property-01	0	0	0	0	1	unavailable	234.8432385

Observed AI credits: unavailable; coverage 0/1 entries. Missing entries are not extrapolated into a total; reported amounts do not attest full credit coverage.

Aggregate metric	Value
total	1
expected_comment_count	0
generated_comment_count	0
matched_comment_count	0
missed_comment_count	0
incorrect_comment_count	0
precision	1
recall	1
f1	1

Candidate

Run: https://github.com/microsoft/BC-Bench/actions/runs/39418386666; conclusion: success; wall clock: 6.3 minutes.
Raw findings and runtime pin proofs are retained in the self-improvement-feedback artifact and the linked evaluation run.

Entry	Expected	Generated	Missed	Unexpected	F1	AI credits	Agent seconds
synthetic__breaking-access-unsupported-page-property-01	0	0	0	0	1	unavailable	224.005767

Observed AI credits: unavailable; coverage 0/1 entries. Missing entries are not extrapolated into a total; reported amounts do not attest full credit coverage.

Aggregate metric	Value
total	1
expected_comment_count	0
generated_comment_count	0
matched_comment_count	0
missed_comment_count	0
incorrect_comment_count	0
precision	1
recall	1
f1	1

Missing telemetry is unavailable, not zero. Evaluation-only metrics exclude candidate generation and are not the full-cycle cost.
Human review must verify source-patch fidelity, gold correctness, and target attribution. No automatic merge or branch-protection claim is made.

Cycle usage and elapsed time (running, as of 2026-10-20T12:01:23.9054558+00:00)

Orchestrator work: 1005.066 seconds. This is not the completed GitHub workflow duration.

Stage / attempt	Status / outcome	Elapsed seconds
preflight / 1	completed /	5.966
quality_preparation / 1	completed /	48.613
gold_preparation / 1	completed / selected_new	131.126
evaluation_preparation / 1	completed /	24.239
baseline / 1	completed / success	413.291
candidate / 1	completed / success	381.107
gate_verdict / 1	completed / inconclusive	0.012
publication / 1	running /	0.022
receipts / 1	not_started /	unavailable
quality_validation / 1	completed /	3.045
gold_attempt / 1	completed / validated	117.98

Measure	Known subtotal	Whole-cycle total	Known / required components
ai_credit: aiCredits	56.47926	unavailable	2 / 6
premium_request: premiumRequests	40	unavailable	2 / 6
token: inputTokens	10611140	unavailable	4 / 6
token: outputTokens	100581	unavailable	4 / 6
token: totalTokens	10711721	unavailable	4 / 6

Subtotals are CLI/Bench-reported usage, not invoices. Missing values are not zero. Emitted-span coverage does not prove complete child/background billing; judge usage is not exported. Premium requests are not AI credits or currency.
Nested stage, agent and API durations are not added into cycle wall clock. Root queue/setup, telemetry export, artifact upload and later dashboard publication are excluded.
PR evidence is an as-of snapshot before publication completes. Final-for-orchestrator metrics are emitted to self-improvement-cycle.json in the root self-improvement-feedback artifact and its Actions summary when persistence succeeds; a running checkpoint is not final evidence.
Root run: https://github.com/microsoft/BC-ALAgentsInternal/actions/runs/39417084712/attempts/1

[github-code-quality]

Code coverage overview

Languages: Python

Python / code-coverage/pytest

main 7c98b75	self-improvement/bca... f0b50eb	+/-
88%	88%	0%

ℹ️ Calculations represent line coverage. Results may change as calculations are updated.