Implementation Plan: T5-P4-A6-WP1 Enforce the contract — remove _FORWARD_DECLARED exemption, add capability gate branch coverage#4100
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Trecek merged 3 commits intoJun 13, 2026
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…on detection Gate the two context-exhaustion checks in classify_infra_exit on supports_context_exhaustion_detection. When the caller passes a BackendCapabilities object, the gate is enforced; when capabilities is None (default), detection remains enabled for backward compatibility. - Add capabilities keyword-only param to classify_infra_exit - Production call site (_headless_result.py:554) passes backend.capabilities - Remove supports_context_exhaustion_detection from _FORWARD_DECLARED and NOT_YET_LIVE exemption sets (now has a production consumer) - Add TestContextExhaustionCapabilityGate covering both gate branches Plan: T5-P4-A6-WP1 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
…tisfy field-coverage gate
…ility gate The capability gate in classify_infra_exit wraps both the JSONL check and the _CODEX_CONTEXT_EXHAUSTION_PATTERN stderr check, but only the JSONL path was exercised in TestContextExhaustionCapabilityGate. Add two tests that exercise the stderr path: one verifying capability=False suppresses it, one verifying capability=True detects it. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
Add a capability gate to
classify_infra_exitso context exhaustion detection is only applied when the backend declaressupports_context_exhaustion_detection=True. This creates a production consumer of theBackendCapabilitiesfield, allowing its removal from_FORWARD_DECLARED. Two new branch tests verify the gate: capability=False suppresses CONTEXT_EXHAUSTED, capability=True produces it.Implementation Plan
Plan file:
/home/talon/projects/autoskillit-runs/impl-20260612-190625-055731/.autoskillit/temp/make-plan/t5_p4_a6_wp1_enforce_contract_plan_2026-06-12_192600.mdCloses #4023
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* Step used a non-Anthropic provider; caching behavior may differ.
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