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@@ -6487,3 +6487,6 @@ Original filing (2026-04-18): the session emitted `SessionStart hook (completed)
 
 
 470. **Root flag aliases fail closed on extra tokens, but the word alias `help` zero-byte hangs with any trailing token (`help extra`, `help --help`, `help --version`) instead of returning root help or a bounded arity error** — dogfooded 2026-05-19 from the `#clawcode-building-in-public` 23:00/23:30 UTC nudges on `/home/bellman/Workspace/claw-code-pr2967` with `./rust/target/debug/claw version --output-format json` reporting `git_sha:"25d663d"`. Clean-home probes showed the flag aliases are healthy/bounded: `--version` and `-V` exit 0 with version text; `--version extra`, `-V extra`, and `--help extra` exit 1 with `[error-kind: cli_parse]`. But the word help alias is fragile: `help extra`, `help --help`, and `help --version` each timed out after 6s with `stdout=0` and `stderr=0`. This narrows #469: not all root alias extra-token paths hang; the flag parser has a fail-closed path, while the `help` word alias enters the same non-returning command/prompt dispatch when trailing tokens are present. **Required fix shape:** (a) treat `help` as a first-class root command with strict arity: bare `help` renders root help; `help <topic>` either renders a static topic if supported or returns typed `unknown_help_topic`; extra flags like `help --help` and `help --version` must be handled locally; (b) never route `help ...` into provider/prompt/runtime dispatch; (c) make JSON mode preserve the same bounded behavior with `kind:"help"` or `kind:"unknown_help_topic"`; (d) add clean-home regression coverage for `help`, `help extra`, `help --help`, `help --version`, `--help extra`, `--version extra`, and `-V extra`. **Why this matters:** `help` is the recovery primitive users type when every other command is broken. If `--help extra` reports a parse error but `help extra` hangs silently, claws cannot rely on the documented `claw help` alias as a safe discovery surface. Source: gaebal-gajae dogfood response to Clawhip messages `1506431285977940009` and `1506438835775737939` on 2026-05-19.
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+471. **Root version aliases (`--version`, `-V`) have no JSON form and reject `--output-format json`, while the `version --output-format json` subcommand hangs under clean home — version provenance is not reliably machine-readable from the safest startup path** — dogfooded 2026-05-20 from the `#clawcode-building-in-public` 00:00 UTC nudge on `/home/bellman/Workspace/claw-code-pr2967` with provenance preflight `./rust/target/debug/claw version --output-format json` reporting `git_sha:"25d663d"` in the normal environment. In isolated clean `HOME`/`CLAW_CONFIG_HOME`, `version --output-format json` timed out after 6s with `stdout=0` and `stderr=0`, while `--version --output-format json`, `--output-format json --version`, `-V --output-format json`, and `--output-format json -V` all exited 1 with `[error-kind: cli_parse] unknown option: ...`. Plain `--version`/`-V` work in text mode, but there is no bounded JSON equivalent through the root flag aliases, and the subcommand JSON path is environment/placement-sensitive. This is a focused provenance/startup slice of #464: the one command claws use to prove binary identity has split semantics across root flags and subcommand forms. **Required fix shape:** (a) make `--version --output-format json` and `--output-format json --version` valid aliases for `version --output-format json`; (b) make `-V` support the same formatting contract; (c) ensure `version --output-format json` is config-free/help-free/provider-free and bounded under clean home; (d) emit a typed JSON parse error on stdout/stderr according to the project-wide JSON error-stream contract if an unsupported combination remains; (e) add clean-home regression coverage for all five forms above. **Why this matters:** binary provenance is the first fact every dogfood report and orchestrator needs. If root version flags only produce text and the JSON subcommand can hang, claws cannot safely establish which executable they are testing without relying on a special normal-environment preflight. Source: gaebal-gajae dogfood response to Clawhip message `1506446390212169839` on 2026-05-20.