Pin help JSON schema opacity for automation

Document the dogfood gap where help JSON stays parseable but hides command metadata inside a prose message, so future implementation can expose machine-readable command, slash-command, and resume-safety fields.\n\nConstraint: user requested ROADMAP.md-only pinpoint for issue #325 from origin/main d607ff36.\nRejected: implementing the schema now | requested fix shape is roadmap documentation only.\nConfidence: high\nScope-risk: narrow\nDirective: keep message for humans while adding schema/versioned structured help metadata when implementing.\nTested: git diff --check; scripts/fmt.sh --check\nNot-tested: runtime CLI behavior unchanged by docs-only change

ROADMAP.md

@@ -6263,3 +6263,5 @@ Original filing (2026-04-18): the session emitted `SessionStart hook (completed)
 323. **`status --output-format json` reports `session.session = "live-repl"` while simultaneously reporting `session_lifecycle.kind = "saved_only"` — contradictory session identity in a single status snapshot** — dogfooded 2026-04-29 by Jobdori on current main (`804d96b`). Running `claw status --output-format json` from an active REPL-style invocation produced `"session": "live-repl"` in the `workspace` block and `"session_lifecycle": {"kind": "saved_only", "pane_id": null, ...}` in the same object. Those two fields carry contradictory claims: `"live-repl"` asserts there is an active interactive session, while `"saved_only"` asserts there is no live tmux pane hosting the session — the session exists only as a saved artifact. A downstream claw reading this snapshot cannot tell which claim to trust: is this a running session whose pane is undetectable, or a saved-only session that the `session` field is misclassifying? Root cause: `"live-repl"` is a fallback sentinel emitted by `main.rs:6070` when `context.session_path` is `None`, while `session_lifecycle` is computed independently by `classify_session_lifecycle_for()` from tmux pane discovery; the two fields share no common source and can diverge. **Required fix shape:** (a) derive both `session.session` and `session_lifecycle.kind` from the same lifecycle classification result so they cannot diverge; (b) replace the `"live-repl"` free-form sentinel with a structured `session_kind` field (`live_repl`, `saved`, `resume`, etc.) that carries the same type vocabulary as `session_lifecycle.kind`; (c) when `session_lifecycle.kind = "saved_only"`, never emit `"session": "live-repl"` (or vice versa); (d) add a regression test proving `status --output-format json` never emits `session.kind = "live_repl"` and `session_lifecycle.kind = "saved_only"` simultaneously. **Why this matters:** `status --output-format json` is the machine-readable truth surface for session state; if two fields in the same snapshot contradict each other, every lane, monitor, and orchestrator has to pick a winner instead of reading a coherent state. Source: Jobdori live dogfood on mengmotaHost, claw-code `804d96b`, 2026-04-29.
 
 324. **Stale local debug binaries can impersonate the current workspace because version/status/doctor do not compare embedded build provenance to repo HEAD** — dogfooded 2026-04-29 on current `origin/main` / workspace HEAD `e7074f47` after PR #2838. The working tree was at `e7074f47`, but running `./rust/target/debug/claw version --output-format json` reported embedded `git_sha` `1f901988`. `status` and `doctor` remained green and exposed no warning that the executable under test was stale relative to the workspace HEAD, nor any structured build-provenance freshness signal that downstream claws could use to decide whether the observed behavior came from the checked-out code or an older debug artifact. This is a repo-identity opacity gap: the JSON truth surfaces can look authoritative while actually describing a different binary lineage than the source tree being dogfooded. **Required fix shape:** (a) compare the embedded build `git_sha` / build date with the current workspace git HEAD and dirty state when the binary can discover a containing worktree; (b) expose redaction-safe structured fields in `version --output-format json`, `status --output-format json`, and `doctor --output-format json`, including `binary_provenance`, `workspace_head`, and `stale_binary` (with enough reason/detail to distinguish clean match, dirty workspace, unknown workspace, and definite stale SHA mismatch); (c) warn in human/text mode when executing a stale local debug binary such as `./rust/target/debug/claw` so dogfooders do not trust old behavior as current-main evidence; (d) avoid leaking secrets or absolute sensitive paths beyond the existing workspace-identification policy; (e) add regression/fixture coverage for matching HEAD, dirty workspace, no-worktree/unknown provenance, and stale embedded SHA cases. **Why this matters:** status/doctor/version are supposed to be the machine-readable basis for dogfood truth. If a stale binary can report a different `git_sha` than the checked-out repo without any freshness warning, claws can file or verify bugs against the wrong code and waste cycles chasing already-fixed or not-yet-built behavior. Source: gaebal-gajae dogfood follow-up from current main `e7074f47` after PR #2838; observed `./rust/target/debug/claw version --output-format json` reporting `git_sha` `1f901988` with no stale-binary-vs-workspace-HEAD warning.
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+325. **`help --output-format json` returns valid JSON but hides the actual help schema inside one prose `message` string** — dogfooded 2026-04-29 on current `origin/main` / workspace HEAD `d607ff36`. Running `./rust/target/debug/claw help --output-format json` produces parseable JSON, but the object only exposes top-level keys like `kind` and `message`; all command names, global flags, slash-command metadata, aliases, resume-safety, output-format support, auth/preflight notes, and descriptions are flattened into one human-oriented prose blob. That technically satisfies “valid JSON” while still forcing automation to scrape the same help text humans read, making `/issue`, `/help`, and resume-safety contracts opaque to claws. **Required fix shape:** (a) keep `message` as the compact human-rendered help summary, but add a documented structured schema with `schema` / `schema_version` fields; (b) expose first-class arrays/objects such as `commands[]`, `options[]`, and `slash_commands[]` with stable fields including `name`, `aliases`, `description`, `args`, `output_formats_supported`, `resume_safe`, `interactive_only`, and `creates_external_side_effects`; (c) include auth and creation preflight metadata where relevant, especially for GitHub/issue flows (`auth_preflight`, `creation_unavailable`, `gh_cli_authenticated`, `github_token_present`, or equivalent non-secret state); (d) make `/issue`, `/help`, aliases, and resume-dispatch safety machine-readable from the JSON payload instead of recoverable only by parsing prose markers; (e) add regression coverage proving `help --output-format json` is valid JSON and that `/issue`, `/help`, resume-safe vs interactive-only slash commands, aliases, descriptions, supported output formats, and side-effect/auth-preflight fields are present and internally consistent. **Why this matters:** help JSON is the discoverability surface automation uses before invoking commands. If it is just prose wrapped in JSON, claws cannot safely decide whether a command can run non-interactively, resume from a saved session, create external GitHub side effects, or requires auth/preflight without brittle text scraping. Source: gaebal-gajae dogfood follow-up from current main `d607ff36`; observed `./rust/target/debug/claw help --output-format json` returning valid JSON with only `{kind,message}` at the top level while the actionable command schema remained buried in `message`.