diff --git a/ROADMAP.md b/ROADMAP.md
index ca63e333..4a48cecc 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -6300,3 +6300,5 @@ Original filing (2026-04-18): the session emitted `SessionStart hook (completed)
 358. **Top-level `cost --help --output-format json` hangs with zero stdout/stderr instead of returning bounded command help JSON** — dogfooded 2026-04-30 for the 02:00 nudge on current `origin/main` / rebuilt `./rust/target/debug/claw` with embedded `git_sha` `d95b230c`. After rebuilding and verifying the binary provenance, repeated bounded runs of `timeout 8 ./rust/target/debug/claw cost --help --output-format json` exited `124` with `stdout=0` and `stderr=0`. In the same rebuilt binary, `version --output-format json` returned promptly with version/build metadata, proving the binary itself and the JSON output path are reachable; the hang is specific to the cost help path, though other help surfaces have separate known JSON contract issues (#356/#357). **Required fix shape:** (a) make `cost --help --output-format json` return static/bounded stdout JSON with `kind:"help"` or `kind:"cost"`, `action:"help"`, usage, options, examples, supported output formats, and related slash/direct commands; (b) ensure help rendering does not initialize slow cost/session/accounting providers; (c) if any dynamic provider is accidentally consulted, return a typed JSON timeout/unavailable error instead of hanging; (d) add regression coverage proving cost help in JSON mode returns within a deterministic budget. **Why this matters:** cost/tokens surfaces are commonly consumed by automation for budgeting. If even cost help can hang silently, claws cannot discover cost command semantics or present safe budget diagnostics before running potentially slow accounting paths. Source: gaebal-gajae dogfood follow-up for the 02:00 nudge on rebuilt `./rust/target/debug/claw` `d95b230c`.
 380. **Top-level `tokens --help --output-format json` hangs with zero stdout/stderr instead of returning bounded command help JSON** — dogfooded 2026-04-30 for the 02:30 nudge on current `origin/main` / rebuilt `./rust/target/debug/claw` with embedded `git_sha` `d95b230c`. After verifying #358 covered `cost --help`, a fresh adjacent probe on the token-budget surface showed the same silent failure class: repeated bounded runs of `timeout 8 ./rust/target/debug/claw tokens --help --output-format json` exited `124` with `stdout=0` and `stderr=0`. In the same rebuilt binary, `version --output-format json` returned promptly with version/build metadata, proving the binary itself and JSON output path are reachable. This is distinct from #358's cost help hang: the affected surface is the sibling `tokens` command help, which agents use before estimating prompt/session token budgets. **Required fix shape:** (a) make `tokens --help --output-format json` return static/bounded stdout JSON with `kind:"help"` or `kind:"tokens"`, `action:"help"`, usage, options, examples, supported output formats, and related slash/direct commands; (b) ensure help rendering does not initialize slow token accounting, session, or provider state; (c) if any dynamic provider is consulted, return a typed JSON timeout/unavailable error instead of hanging; (d) add regression coverage proving tokens help in JSON mode returns within a deterministic budget. **Why this matters:** token budgeting is a preflight clawability surface. If help hangs silently, automation cannot safely discover how to inspect or constrain token usage before running expensive prompts, and budget-aware wrappers stall at the discovery step. Source: gaebal-gajae dogfood follow-up for the 02:30 nudge on rebuilt `./rust/target/debug/claw` `d95b230c`.
 381. **Top-level `cache --help --output-format json` hangs with zero stdout/stderr instead of returning bounded command help JSON** — dogfooded 2026-04-30 for the 03:00 nudge on current `origin/main` / rebuilt `./rust/target/debug/claw` with embedded `git_sha` `d95b230c`. After #358 and #380 landed for the cost/tokens preflight help hangs, a fresh adjacent probe on the cache-control surface showed the same silent failure class: repeated bounded runs of `timeout --kill-after=1s 8s ./rust/target/debug/claw cache --help --output-format json` exited `124` with `stdout=0` and `stderr=0`. In the same rebuilt binary, `version --output-format json` returned promptly with version/build metadata, proving the binary itself and JSON output path are reachable. This is distinct from the separate `/cache` slash-command envelope mismatch class: the affected surface here is top-level `cache` command help, where agents need bounded local discovery before deciding whether to inspect, clear, or summarize cache state. **Required fix shape:** (a) make `cache --help --output-format json` return static/bounded stdout JSON with `kind:"help"` or `kind:"cache"`, `action:"help"`, usage, options, examples, supported output formats, and related slash/direct commands; (b) ensure help rendering does not initialize slow cache/session/provider state; (c) if any dynamic provider is consulted, return a typed JSON timeout/unavailable error instead of hanging; (d) add regression coverage proving cache help in JSON mode returns within a deterministic budget. **Why this matters:** cache inspection and cleanup are recovery/control-plane operations. If cache help hangs silently, claws cannot safely discover cache semantics before attempting cleanup, and automation stalls before it can choose a non-destructive cache action. Source: gaebal-gajae dogfood follow-up for the 03:00 nudge on rebuilt `./rust/target/debug/claw` `d95b230c`.
+
+421. **`version --output-format json` omits the `build_date` field — ROADMAP entry #79 documents `build_date` as a present top-level field but the live binary emits `{git_sha, kind, message, target, version}` without it** — dogfooded 2026-05-01 by Jobdori on `e939777f`. Running `claw version --output-format json` returns five fields: `git_sha`, `kind`, `message`, `target`, `version`. ROADMAP entry #79 (line 1380 on main) explicitly documents the version command schema as `{kind, message, version, git_sha, target, build_date}` — listing `build_date` as a first-class structured field on equal footing with `git_sha` and `target`. The `build_date` value (`2026-04-30`) is present inside the prose `message` field as `Build date       2026-04-30` but is not emitted as a separate top-level JSON key. Automation that reads `build_date` directly from the JSON object gets `undefined`/`null`/KeyError and must fall back to parsing the `message` string, which is the same prose-scraping antipattern the JSON surface is supposed to avoid. This is adjacent to #324 (stale-binary provenance gap) and #391 (version prose mismatch) but distinct: the pinpoint is a schema field documented as present that the binary never emits, not a staleness comparison or a prose string format inconsistency. **Required fix shape:** (a) emit `build_date` as a top-level string field in `version --output-format json` alongside `git_sha`, `target`, and `version`; (b) use an ISO-8601 date format (`YYYY-MM-DD`) for machine parseability rather than a space-padded prose format; (c) verify that `message` and the new `build_date` field agree on the same date; (d) add regression coverage proving `version --output-format json` output contains a `build_date` field matching the pattern `\\d{4}-\\d{2}-\\d{2}` and that it is consistent with the `message` prose date. **Why this matters:** `build_date` is a provenance signal used by claws to decide whether a binary is recent enough for a given task. If it exists only inside a human-formatted prose string, claws must scrape the `message` to extract it, re-introducing the exact prose dependency the structured JSON field was supposed to eliminate. ROADMAP #79's documented schema creates a false expectation of machine accessibility that the live binary does not fulfill. Source: Jobdori live dogfood, `e939777f`, 2026-05-01.