feat(pre-push-safety-net): render bounded reports and preserve full evidence

.kiro/specs/pre-push-safety-net/brief.md

@@ -1,6 +1,6 @@
 # Brief: pre-push-safety-net
 
-Status: requirements, design and tasks approved on 2026-09-12; groups 1–3 verified complete (11/27 subtasks), including the approved contributor-scan frontend-retention prerequisite; groups 4–8 pending. Language: English.
+Status: requirements, design and tasks approved; groups 1–4 verified complete (14/27 subtasks). Groups 5–8 pending; real capability eligibility and hook latency remain unproven. Language: English.
 
 ## Problem
 

.kiro/specs/pre-push-safety-net/implementation-group-4.md

@@ -4,9 +4,10 @@ Date: 2026-09-13. The maintainer authorized group 4 as a whole. Scope is tasks
 4.1–4.3: targeted novelty comparison, actionability admission and compact reporting.
 Groups 1–3 are verified at `6ba2b06`; full transaction replay remains task 5.1.
 
-Status: implementation in progress. Task completion requires independent review
-and fresh evidence. No production capability is enabled for normal hook alerts;
-capability admission still requires task 8.3 evaluation.
+Status: tasks 4.1–4.3 are VERIFIED (TASK scope), bringing the spec to 14/27 tasks.
+Tasks 4.1 and 4.2 passed independent review. Task 4.3 used the Kiro manual review
+fallback after the agent service rejected further dispatch. No production capability
+is enabled for normal hook alerts; actual admission still requires task 8.3 evaluation.
 
 ## Verification boundary
 
@@ -62,3 +63,64 @@ default registry. Explicitly synthetic PHP/WordPress and JavaScript/Express cont
 receive equivalent admission and enforcement behavior. They do not qualify any
 real capability; task 8.3 still owns actual eligibility. Task 4.2 brings progress to
 13/27 tasks. Compact reporting remains in this authorized group.
+
+## Task 4.3 verification
+
+The agent service rejected the task 4.3 dispatch with `agent thread limit reached`.
+The [kiro-impl skill](../../../.opencode/skills/kiro-impl/SKILL.md) explicitly provides:
+“If multi-agent is not available, fall back to manual mode execution for all tasks.”
+Implementation, review and completion checks therefore ran in the main context.
+This is a manual review record, not an independent-review claim.
+
+OFF controls produced seven relevant failures; ON and unflagged reporting tests
+passed. Manual review found and repaired an invalid artifact path escaping the
+notice path and a complete comparison carrying failed base evidence. A writer
+exiting zero without a receipt is rejected. Stalled-writer tests prove cancellation,
+preservation of an existing artifact and no surviving child. Other controls cover
+all candidate/scan preservation, five defects with only three displayed, separate
+coverage/enforcement, escaping and bounded long text, and immutable provenance.
+
+## Review Verdict
+- VERDICT: APPROVED
+- TASK: 4.3
+- REVIEW_MODE: Kiro manual fallback; agent dispatch unavailable.
+- MECHANICAL_RESULTS: final full suite 1,222 passed, nine skipped in 102.39 seconds;
+  Ruff and format (238 files), mypy (111 source files), compileall, diff checks and
+  detection/map/pair gates PASS. No new placeholders or hardcoded secrets.
+- FINDINGS: Invalid destination and failed-base completeness issues repaired and
+  verified with failing controls followed by passing tests. No outstanding task finding.
+- BOUNDARY: Reporting consumes existing admission and engine records; no new
+  detector, ranker, graph mutation, provider or installed hook.
+
+The image build and CLI boot passed. The packaged integration control rechecked
+captured actual PHP/JavaScript answers through current comparison/admission/reporting,
+preserving complete scan payloads and default diagnostic-only output. Five explicitly
+synthetic admitted defects retain all five records, display three summaries and keep
+the block decision. Artifact write failure also retains that decision. Packaged
+policy/reporter hashes match the workspace. See
+`benchmarks/measurements/2026-09-13-compact-report-smoke.json`.
+
+Publication is atomic from mode-0600 temporary files. A separate Linux process
+bounds serialization and filesystem work by the remaining transaction/report
+allowance. Hard cancellation can leave a private unpublished partial file; it is
+never presented as the completed artifact. Caller-supplied stage timings are
+preserved, and the delivery receipt measures publication/rendering separately.
+Observed packaged delivery costs (about 0.02–0.04 seconds for these controls) do not
+establish whole-hook latency.
+
+## Group integration validation
+
+- DECISION: GO
+- VALIDATION_SCOPE: Tasks 4.1–4.3 only; no full-feature or release admission.
+- CROSS_TASK_CONTRACTS: Actual captured engine evidence → bound delta → empty-registry
+  diagnostics → compact report and complete artifact PASS. Explicitly synthetic
+  calibrated controls → admission → advisory/blocking → capped rendering PASS.
+- REQUIREMENTS: Group-owned portions of 2.4, 3.1–3.5, 4.1, 5.1–5.5, 7.3 and 8.1 are
+  covered by the implementation and controls above. Full transaction wiring and
+  representative capability/latency evaluation remain later tasks.
+- DESIGN_ALIGNMENT: Existing arbiters and ranker retained; policy and report live
+  in their planned push-adapter boundary. No orphaned module or upstream detector change.
+- BLOCKED_TASKS: None in group 4. Automatic dominance change-context projection is
+  a documented upstream integration limit, not erased by these declared controls.
+- NEXT: Group 5 full replay and first bounded experiment. Complete that experiment
+  before persistent graph reuse in group 6. Groups 5–8 remain pending.

.kiro/specs/pre-push-safety-net/spec.json

@@ -1,7 +1,7 @@
 {
   "feature_name": "pre-push-safety-net",
   "created_at": "2026-09-12T15:35:00Z",
-  "updated_at": "2026-09-13T10:26:47.307154+00:00",
+  "updated_at": "2026-09-13T11:21:07.667199+00:00",
   "language": "en",
   "phase": "implementation",
   "approvals": {
@@ -19,7 +19,7 @@
     }
   },
   "ready_for_implementation": true,
-  "implementation_approval_note": "Groups 1\u20133 verified complete. Maintainer explicitly authorized group 4 as a whole; each task requires independent review and fresh verification.",
+  "implementation_approval_note": "Groups 1\u20134 verified complete. Tasks 4.1/4.2 independently approved; 4.3 used the documented Kiro manual review fallback after agent thread limit. Remaining tasks require review and fresh verification.",
   "depends_on": [
     "contributor-scan"
   ],
@@ -85,9 +85,10 @@
       "3.3",
       "3.4",
       "4.1",
-      "4.2"
+      "4.2",
+      "4.3"
     ],
-    "remaining_tasks": 14,
+    "remaining_tasks": 13,
     "verification_record": "implementation-group-4.md",
     "verification_records": [
       "implementation-group-1.md",
@@ -95,7 +96,7 @@
       "implementation-group-3.md",
       "implementation-group-4.md"
     ],
-    "next_group": 4,
+    "next_group": 5,
     "blocked_tasks": []
   }
 }

.kiro/specs/pre-push-safety-net/tasks.md

@@ -1,8 +1,9 @@
 # Implementation Plan: pre-push-safety-net
 
-Status: task plan approved by the maintainer's "approve." on 2026-09-12. Groups 1–3 (tasks 1.1–3.4)
-are complete after independent review and fresh verification (13/27 subtasks, including tasks 4.1–4.2). Task 4.3 and groups 5–8 remain pending;
-the hook and capability admission are not yet implemented. See `implementation-group-1.md` and `implementation-group-2.md`.
+Status: task plan approved by the maintainer on 2026-09-12. Groups 1–4 (tasks 1.1–4.3)
+are complete after task reviews and fresh verification (14/27 subtasks). Task 4.3 used
+the documented manual review fallback after agent dispatch became unavailable.
+Groups 5–8 remain pending; no production capability or hook latency is admitted.
 
 ## Execution contract
 
@@ -112,7 +113,7 @@ the hook and capability admission are not yet implemented. See `implementation-g
   - _Requirements: 2.2, 2.3, 7.3, 8.2, 8.4_
   - _Verified 2026-09-13:_ independent review APPROVED; 1,151 passed, nine skipped; Ruff/format/mypy pass. Real PHP/JavaScript graphs retain tests/browser source, omit vendor nodes and share one ranker limit. Named census survives PHP aggregation; missing source names and unreadable discovery inputs remain explicit. Python exercises all three batch census schemas. Evidence: `benchmarks/measurements/2026-09-13-partition-scope-smoke.json`. No hook capability or latency claim.
 
-- [ ] 4. Implement change attribution and actionable output
+- [x] 4. Implement change attribution and actionable output
 - [x] 4.1 Compare targeted base/head evidence for defect novelty
   - Establish stable mechanism/operation identity with rename/span mapping and collect comparable base evidence under the same semantics and remaining deadline.
   - Distinguish new, worsened, unchanged and unknown; an absent finding from a failed/truncated base is unknown. Support removed guards and new source connections at unchanged sinks.
@@ -130,10 +131,11 @@ the hook and capability admission are not yet implemented. See `implementation-g
   - _Verified 2026-09-13:_ independent review APPROVED after operation/context-binding repair; 1,207 tests passed, nine skipped; default real-evidence controls remain diagnostic and synthetic PHP/JavaScript admission is equivalent. See `implementation-group-4.md`.
   - _Boundary: Delta and Actionability Policy_
   - _Requirements: 3.1, 3.2, 3.3, 3.4, 3.5, 5.3, 5.4, 8.1_
-- [ ] 4.3 Render compact results and preserve complete artifacts
+- [x] 4.3 Render compact results and preserve complete artifacts
   - Render up to three actionable summaries plus remaining count; emit at most one no-finding status and one aggregated incomplete notice with a useful next action.
   - Persist all defects, candidate dispositions, exact scope, identities, capability/ranker provenance and timings with separate finding/coverage/push status.
   - Done when the display cap does not change the push decision, incomplete analysis cannot read as secure, and artifact-write failure produces a bounded notice while retaining the real decision.
+  - _Verified 2026-09-13:_ manual Kiro review fallback APPROVED after dispatch thread limit; 1,222 tests passed, nine skipped. Packaged comparison/admission/report smoke and CLI boot passed; full records retained with bounded output/write failure handling. See `implementation-group-4.md`.
   - _Boundary: Result and Hook Adapter_
   - _Requirements: 3.1, 3.2, 3.3, 5.1, 5.2, 5.5, 7.3_