Resolve the G012 evidence gate by fixing permission-mode regressions, platform-sensitive tests, and the clippy surface that blocked an all-targets verification run.
Constraint: G012 final gate required docs, board, full workspace tests, and clippy -D warnings evidence before checkpointing.
Rejected: documenting the worker-2 gate failure as an accepted gap | the failing tests and lints were locally reproducible and fixable.
Confidence: high
Scope-risk: moderate
Directive: Preserve read-only permission requirements for read/glob/grep tools; write/edit remain workspace-write or danger-full-access when outside the workspace.
Tested: python3 .github/scripts/check_doc_source_of_truth.py; python3 .github/scripts/check_release_readiness.py; python3 scripts/validate_cc2_board.py --board .omx/cc2/board.json; python3 .omx/cc2/validate_issue_parity_intake.py .omx/cc2/issue-parity-intake.json; cargo fmt --manifest-path rust/Cargo.toml --all -- --check; cargo check --manifest-path rust/Cargo.toml --workspace; cargo test --manifest-path rust/Cargo.toml --workspace -- --nocapture; cargo clippy --manifest-path rust/Cargo.toml --workspace --all-targets -- -D warnings
Not-tested: live network provider smoke tests and remote PR/issue mutations.
Five interrelated fixes from parallel Hephaestus sessions:
1. fix(repl): display assistant text after spinner (#2981, #2982, #2937)
- Added final_assistant_text() call after run_turn spinner completes
- REPL now shows response text like run_prompt_json does
2. fix(compact): handle Thinking content blocks (#2985)
- Added ContentBlock::Thinking variant throughout compact summarizer
- Prevents panic when /compact encounters thinking blocks
3. fix(prompt): provider-aware model identity (#2822)
- New ModelFamilyIdentity enum (Claude vs Generic)
- Non-Anthropic models no longer say 'I am Claude'
- model_family_identity_for() detects provider and sets identity
4. fix(openai): preserve DeepSeek reasoning_content (#2821)
- Stream parser now captures reasoning_content from OpenAI-compat
- Emits ThinkingDelta/SignatureDelta events for reasoning models
- Thinking blocks included in conversation history for re-send
5. feat(runtime): Thinking block support across codebase
- AssistantEvent::Thinking variant in conversation.rs
- ContentBlock::Thinking in session serialization
- Thinking-aware compact summarization
- Tests for thinking block ordering and content
Closes#2981, #2982, #2937, #2985, #2822, #2821
Run rustfmt from the Rust workspace so CI format checks pass without changing behavior.
Constraint: Scope is formatting-only across tracked Rust files
Confidence: high
Scope-risk: narrow
Tested: cd rust && cargo fmt --check
Tested: git diff --check
