JSON config output already carries collected config diagnostics in warnings[], so prose stderr emission must be reserved for text/local paths. Lazy permission-mode default resolution prevents an earlier config load from leaking the same deprecation before the JSON renderer runs.\n\nConstraint: ROADMAP #815 requires text mode to keep human stderr warnings while JSON config/list suppresses duplicate app-level config prose.\nRejected: Filtering all stderr in JSON mode | would hide cargo/compiler or unrelated diagnostics outside the app config warning path.\nConfidence: high\nScope-risk: narrow\nDirective: Keep load_collecting_warnings side-effect-free; use load() for human stderr emission.\nTested: cargo fmt; cargo test -p rusty-claude-cli --test output_format_contract config_json_reports_deprecations_structurally_without_stderr_duplicate_815; cargo test -p rusty-claude-cli --test output_format_contract; manual target/debug/claw JSON config fixture.\nNot-tested: cargo clippy -p rusty-claude-cli --all-targets -- -D warnings is blocked by pre-existing runtime dead_code/trident warnings.
Doctor help was already on the local help path in current source, but the exact #702 dogfood surface lacked a focused guard and the JSON help envelope was still too prose-oriented for wrappers. Strengthen the JSON contract while preserving text help.\n\nConstraint: Preserve unrelated dirty rust/Cargo.lock from prior #701 work.\nRejected: Starting runtime/provider/session to inspect doctor semantics | help must be local and credential-free.\nConfidence: high\nScope-risk: narrow\nDirective: Keep doctor help routed through parse_local_help_action and print_help_topic; do not call run_doctor for --help.\nTested: cargo test --manifest-path rust/Cargo.toml -p rusty-claude-cli --test output_format_contract doctor_help -- --nocapture; cargo test --manifest-path rust/Cargo.toml -p rusty-claude-cli --test output_format_contract help -- --nocapture; cargo fmt --manifest-path rust/Cargo.toml --all -- --check; cargo check --manifest-path rust/Cargo.toml -p rusty-claude-cli; timeout 5s cargo run -q --bin claw -- --output-format json doctor --help; timeout 5s cargo run -q --bin claw -- doctor --help.\nNot-tested: full workspace test suite.
Keep malformed diff invocations with trailing JSON format flags on the parser error path and lock the contract with focused output-format regressions.
Constraint: Do not touch tracked .omx state files.
Rejected: Repeating direct binary smoke loops | local auth/provider configuration intercepts those invocations and obscures parser behavior.
Confidence: high
Scope-risk: narrow
Tested: git diff --check; cargo fmt --check; cargo test -p rusty-claude-cli diff_extra_args_have_typed_error_kind_and_hint_766 --test output_format_contract; cargo test -p rusty-claude-cli diff_trailing_json_after_malformed_args_is_bounded_json_3129 --test output_format_contract; cargo test -p rusty-claude-cli diff_non_git_dir_has_error_kind_and_hint_801 --test output_format_contract
claw '' and claw ' ' returned empty_prompt + hint:null because the
error message had no newline delimiter. Added usage hint. 61 CLI
contract tests pass.
Parity with #791 (config extra-arg fix). The plugins arg parser emitted
'unexpected extra arguments after claw plugins show ...' with no newline
delimiter, so split_error_hint returned None. Added usage hint after newline.
60 CLI contract tests pass.
Guard the local/no-credential JSON command sweep so future additions fail fast when action is absent or empty.
Constraint: ROADMAP #710-#713 fixed most JSON surfaces; #714 dogfood sweep found remaining help and sandbox gaps.
Rejected: Schema redesign for help output | outside the action-field contract scope.
Confidence: high
Scope-risk: narrow
Directive: Keep --output-format json envelopes carrying a stable non-empty action on every local CLI surface.
Tested: cargo fmt --manifest-path rust/Cargo.toml --all; cargo fmt --manifest-path rust/Cargo.toml --all -- --check; cargo test --manifest-path rust/Cargo.toml -p rusty-claude-cli --test output_format_contract -- --nocapture; cargo check --manifest-path rust/Cargo.toml -p rusty-claude-cli; git diff --check
Not-tested: full workspace cargo test
Add a CLI contract proving plugins list and mcp list emit a deprecated enabledPlugins warning only once per process after config warning dedup landed. Covers ROADMAP #698.
