v0.42.23.0 feat(jobs): --nice scheduling-priority flag for jobs work/supervisor (#1815) (#1820)

* feat(jobs): niceness core, worker registry, shared supervisor-pid reader

OS scheduling-priority primitives for issue #1815:
- niceness.ts: parseNiceValue (whole-string), applyNiceness (re-reads
  effective in success AND failure paths), getEffectiveNiceness, formatNice.
- worker-registry.ts: live workers self-register pid + requested/effective
  nice under gbrainPath('workers'); readWorkers prunes ESRCH (keeps EPERM)
  with a pid-reuse start-time guard.
- supervisor-pid.ts: readSupervisorPid extracted from the copy-pasted
  PID-file + liveness block.

* feat(jobs): --nice flag for jobs work/supervisor + doctor niceness check

Wires the --nice <n> flag (and GBRAIN_NICE env) through the CLI (issue #1815):
- jobs work: applies niceness + registers the worker; cleanup on finally and
  process.on('exit').
- jobs supervisor: applies in the foreground-start path only (after the
  --detach fork), passes the apply result into MinionSupervisor.
- supervisor.ts: nice opts, extracted testable buildWorkerArgs (appends
  --nice), emits niceness on started/worker_spawned audit events.
- jobs stats / supervisor status: surface effective worker + supervisor nice.
- doctor: separate supervisor_niceness check (warns on requested != effective)
  so it can't clobber the supervisor crash-check precedence; registered in
  doctor-categories.

* test(jobs): cover niceness, worker registry, supervisor-pid, build args

Unit tests for issue #1815: parseNiceValue rejects 3.5/10abc that parseInt
would accept; applyNiceness re-reads effective on EPERM; registry ESRCH/EPERM +
pid-reuse guard + brain-isolated path; readSupervisorPid states; parseNiceFlag
flag>env precedence; buildWorkerArgs --nice propagation.

* chore: bump version and changelog (v0.42.23.0)

--nice flag for jobs work/supervisor (issue #1815).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs: document --nice flag for jobs work/supervisor (v0.42.23.0)

- minions-deployment.md: niceness tuning section (full concurrency, low priority).
- KEY_FILES.md: entries for niceness.ts, worker-registry.ts, supervisor-pid.ts;
  supervisor.ts entry notes buildWorkerArgs + nice opts.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(e2e): add enrich_thin to dream cycle EXPECTED_PHASES

The enrich_thin cycle phase (src/core/cycle.ts ALL_PHASES, between
conversation_facts_backfill and skillopt) shipped without updating the
e2e phase-order expectation, so dream-cycle-phase-order-pglite failed on
master. Sync the expected list to the real ALL_PHASES order.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(e2e): align sync-lock-recovery with the shipped --break-lock --all contract

v0.41.13.0 intentionally dropped the "--break-lock + --all is refused" guard so
cron can self-heal every source in one call (sync.ts runBreakLock iterates
sources under --all). The e2e test still asserted the old exit-1 refusal and
failed on master. Assert the current contract: the combination is accepted and
takes the iterate / no-active-sources path (exit 0, no refusal message).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(e2e): de-flake ingestion-roundtrip chokidar first-drop race

The native fsevents watcher occasionally missed a freshly written file, timing
out the 15s waitFor (~1/3 on master under load). Three fixes:
- inject a polling chokidar watcher via the source's _watchFactory seam
  (usePolling, 20ms interval) so detection never depends on fsevents timing;
- drop deterministic fixtures BEFORE start so the initial scan
  (ignoreInitial:false) emits them, keeping live-watch coverage only where it's
  robust;
- poll for the dedup hit instead of a fixed 600ms sleep.
15/15 green under stress.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(e2e): make hermetic-PGLite serve tests actually hermetic

connect-bearer and serve-stdio-roundtrip init a PGLite brain and spawn serve,
but passed {...process.env} through — leaking an ambient DATABASE_URL /
GBRAIN_DATABASE_URL into the subprocess, which then came up on Postgres and
failed the `engine: pglite` assertion. Strip both DB vars from the spawned env
so the tests are deterministic whether or not the shell/CI has a DB URL set.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test(e2e): type the hermetic-PGLite env so tsc passes

The DATABASE_URL/GBRAIN_DATABASE_URL strip used `delete` on a narrowly-typed
env literal (tsc-only failure; bun test doesn't typecheck). Annotate
connect-bearer's env as Record<string,string|undefined> and build serve-stdio's
as a concrete Record<string,string> (StdioClientTransport.env rejects undefined).
Runtime behavior unchanged (7/7 + 3/3 green).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* test: quarantine worker-registry to *.serial (R1 env-mutation isolation)

worker-registry.test.ts sets process.env.GBRAIN_HOME per-test so gbrainPath
resolves to a temp dir, then lazy-imports the module — a process-global
mutation the parallel isolation lint (rule R1) forbids. Rename to
worker-registry.serial.test.ts: it runs in the serial pass (own bun process,
max-concurrency=1) where env mutation is safe, and the lint skips *.serial
files. No logic change (6/6 green); fixes the failing `verify` CI job.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docs/architecture/KEY_FILES.md

@@ -211,9 +211,12 @@ per-release `**vX.Y.Z:**` narration — CI enforces this
 - `src/core/minions/` — Minions job queue: BullMQ-inspired, Postgres-native (queue, worker, backoff, types, protected-names, quiet-hours, stagger, handlers/shell).
 - `src/core/minions/queue.ts` — MinionQueue class (submit, claim, complete, fail, stall detection, parent-child, depth/child-cap, per-job timeouts, cascade-kill, attachments, idempotency keys, child_done inbox, removeOnComplete/Fail). `add()` takes a 4th `trusted` arg (separate from `opts` to prevent spread leakage); protected names in `PROTECTED_JOB_NAMES` require `{allowProtectedSubmit: true}` and the check runs trim-normalized (whitespace-bypass safe). `add()` plumbs `max_stalled` through with a `[1, 100]` clamp; omitted values let the schema DEFAULT (5) kick in. `handleWallClockTimeouts(lockDurationMs)` is Layer 3 kill shot for jobs where `FOR UPDATE SKIP LOCKED` stall detection and the timeout sweep both fail to evict (wedged worker holding a row lock via a pending transaction). The `maxWaiting` coalesce path uses `pg_advisory_xact_lock` keyed on `(name, queue)` to serialize concurrent submits for the same key, and filters on `queue` in addition to `name` so cross-queue same-name jobs don't suppress each other.
 - `src/core/minions/worker.ts` — MinionWorker class (handler registry, lock renewal, graceful shutdown, timeout safety net). Aborted jobs call `failJob` with reason (`timeout`/`cancel`/`lock-lost`/`shutdown`); `shutdownAbort` (instance field) fires on SIGTERM/SIGINT and propagates to `ctx.shutdownSignal` (shell handler listens; non-shell handlers don't). Per-job timeout fires `abort.abort(new Error('timeout'))` then a 30s grace-then-evict safety net force-evicts the job from `inFlight` and marks it dead if the handler ignores the abort signal (the moved-out generic abort listener now fires for ANY abort reason). The `launchJob` lock-renewal block is a thin sync wrapper around the pure `runLockRenewalTick` from `src/core/minions/lock-renewal-tick.ts` (NEVER `setInterval(async () => await renewLock(...))` — that shape was the unhandledRejection crash class during PgBouncer rotation). Gaps closed: (1) `cancelled` flag captured in the timer closure stops in-flight IIFEs writing misleading audit events after the job ended; (2) re-entrancy guard `tickInFlight` + per-call `Promise.race` timeout (`GBRAIN_LOCK_RENEWAL_CALL_TIMEOUT_MS`, default `lockDuration/3`); (3) time-based abort (`Date.now() - lastSuccessfulRenewalAt >= lockDuration - GBRAIN_LOCK_RENEWAL_SAFETY_MARGIN_MS`) so we release the lock BEFORE another worker can reclaim; (4) explicit `.catch()` on the stored `executeJob(...).finally(...)` promise closes the second unhandledRejection vector; (5) exported `INFRASTRUCTURE_ABORT_REASONS = new Set(['lock-renewal-failed', 'lock-lost'])` so executeJob's catch skips `failJob` for these (PgBouncer blips don't dead-letter healthy jobs; the stall detector reclaims). CI guard `scripts/check-worker-lock-renewal-shape.sh` (in `bun run verify`) asserts the bug pattern stays absent AND `launchJob` keeps calling `runLockRenewalTick`. Engine-ownership invariant: `start()` does NOT call `engine.disconnect()` on shutdown — the CLI handler in `src/commands/jobs.ts case 'work'` owns engine lifecycle via try/finally with loud error logging. RSS watchdog uses non-file-backed pages on Linux: exported `parseRssFromProcStatus(status)` (pure parser; field-presence regex so `RssAnon: 0 + RssShmem: 512` parses correctly) and `getAccurateRss(readStatus?)` (reads `/proc/self/status` for `RssAnon + RssShmem`, falls back to `process.memoryUsage().rss` on macOS / restricted containers / kernel <4.5); the default `getRss` in `WorkerOpts` is `getAccurateRss`. `checkMemoryLimit` tracks peak RSS, fires an 80%-of-cap soft-warn (once per crossing, carrying peak + in-flight job kinds), and on exceed sets `_rssWatchdogTriggered=true` (exposed via `get rssWatchdogTriggered()`) so `jobs work`'s finally can `process.exit(WORKER_EXIT_RSS_WATCHDOG)` after disconnect (drain self-identifying instead of an opaque code-0 exit). The poll loop wraps `claim` in try/catch: on a retryable conn error it reconnects ONCE and continues to the next tick rather than blind-retrying (a retry after `UPDATE...RETURNING` committed but the socket died would double-claim). `LockRenewalDeps` is wired with `reconnect` when the engine supports it. The self-health DB-liveness probe now runs EVEN under a supervisor (`GBRAIN_SUPERVISED=1`): the outer guard is `if (this.opts.healthCheckInterval > 0)` and only the STALL-detection block is wrapped in `if (!isSupervisedChild)` — so a supervised worker whose own pool dies self-exits `unhealthy(db_dead)` after `dbFailExitAfter` probes (the supervisor watches a different connection and can't see this worker's dead pool), while the supervisor's progress watchdog owns forward-progress (#1801). Pinned by `test/worker-lock-renewal.test.ts` (18), `test/audit/lock-renewal-audit.test.ts` (11), `test/scripts/check-worker-lock-renewal-shape.test.ts` (5), `test/worker-shutdown-disconnect.test.ts` (asserts `disconnectSpy).not.toHaveBeenCalled()`), `test/worker-rss.test.ts` (11), `test/worker-supervised-db-probe.test.ts` (3).
-- `src/core/minions/supervisor.ts` — MinionSupervisor process manager. Spawns `gbrain jobs work` as a child, restarts on crash with exponential backoff, periodic health check. `consecutiveHealthFailures` counter; on 3 consecutive failures emits `health_warn` with `reason: 'db_connection_degraded'` and calls `engine.reconnect()` to swap in a fresh pool, then resets. Worker exit classifier emits `likely_cause` on `worker_exited` events: `oom_or_external_kill` (SIGKILL), `graceful_shutdown` (SIGTERM), `runtime_error` (code 1), `clean_exit` (code 0), `unknown`. Consumes `detectTini()` + `buildSpawnInvocation()` from `src/core/minions/spawn-helpers.ts` to wrap the worker subtree in tini-as-PID-1 when tini is on `PATH` (handles native-addon zombie reaping the in-process SIGCHLD reaper can't reach); exposes `isTiniDetected` read-only accessor. The spawn-and-respawn loop is the shared `ChildWorkerSupervisor` core: MinionSupervisor composes it via `runSuperviseLoop()` → `new ChildWorkerSupervisor({...})` and maps `ChildSupervisorEvent` back through `emit()` SupervisorEvent (JSONL audit consumers see byte-compatible output). PID lock, signal handlers, health check, and `process.exit` on max-crashes stay in MinionSupervisor. `code=0` leaves `crashCount` untouched (so a worker alternating real crashes + watchdog drains still trips `max_crashes`); `cleanRestartBudget` (default 10 restarts per 60s) caps the macOS/non-Linux-fallback tight-loop via `health_warn { reason: 'clean_restart_budget_exceeded' }` + backoff. `shutdown()` drains via `childSupervisor.killChild('SIGTERM')` + `awaitChildExit(35_000)`. Progress watchdog (#1801): `healthCheck()` restarts an alive-but-wedged child via `childSupervisor.restartCurrentChild(35_000)` when a queue has claimable work, 0 live-lock active jobs, and stale completions across `wedgeRestartChecks` (default 3) consecutive checks past `wedgeRestartMinutes` (default 15, 0 disables) + a `startupGraceMs` window; bounded by `wedgeRestartLoopBudget` (default 3 / `wedgeRestartLoopWindowMs`) which switches to a one-shot `wedge_restart_loop` alert. The wedge query is the exported `queryWedgeSignals(engine, queue, handlerNames)` — name+queue-scoped, `active_healthy` = live-lock only (an expired-lock active row does NOT mask the wedge), due-delayed counted. Claimable names are derived at start via a throwaway `registerBuiltinHandlers` worker (its new `quiet` opt). Flags `--wedge-restart-minutes` / `--wedge-restart-checks` + env `GBRAIN_WEDGE_RESTART_MINUTES` / `GBRAIN_WEDGE_RESTART_CHECKS`. Pinned by `test/supervisor.test.ts` (16 cases), `test/supervisor-tini.test.ts`, and `test/supervisor-wedge.test.ts`.
+- `src/core/minions/supervisor.ts` — MinionSupervisor process manager. Spawns `gbrain jobs work` as a child, restarts on crash with exponential backoff, periodic health check. `consecutiveHealthFailures` counter; on 3 consecutive failures emits `health_warn` with `reason: 'db_connection_degraded'` and calls `engine.reconnect()` to swap in a fresh pool, then resets. Worker exit classifier emits `likely_cause` on `worker_exited` events: `oom_or_external_kill` (SIGKILL), `graceful_shutdown` (SIGTERM), `runtime_error` (code 1), `clean_exit` (code 0), `unknown`. Consumes `detectTini()` + `buildSpawnInvocation()` from `src/core/minions/spawn-helpers.ts` to wrap the worker subtree in tini-as-PID-1 when tini is on `PATH` (handles native-addon zombie reaping the in-process SIGCHLD reaper can't reach); exposes `isTiniDetected` read-only accessor. The spawn-and-respawn loop is the shared `ChildWorkerSupervisor` core: MinionSupervisor composes it via `runSuperviseLoop()` → `new ChildWorkerSupervisor({...})` and maps `ChildSupervisorEvent` back through `emit()` SupervisorEvent (JSONL audit consumers see byte-compatible output). PID lock, signal handlers, health check, and `process.exit` on max-crashes stay in MinionSupervisor. `code=0` leaves `crashCount` untouched (so a worker alternating real crashes + watchdog drains still trips `max_crashes`); `cleanRestartBudget` (default 10 restarts per 60s) caps the macOS/non-Linux-fallback tight-loop via `health_warn { reason: 'clean_restart_budget_exceeded' }` + backoff. `shutdown()` drains via `childSupervisor.killChild('SIGTERM')` + `awaitChildExit(35_000)`. Progress watchdog (#1801): `healthCheck()` restarts an alive-but-wedged child via `childSupervisor.restartCurrentChild(35_000)` when a queue has claimable work, 0 live-lock active jobs, and stale completions across `wedgeRestartChecks` (default 3) consecutive checks past `wedgeRestartMinutes` (default 15, 0 disables) + a `startupGraceMs` window; bounded by `wedgeRestartLoopBudget` (default 3 / `wedgeRestartLoopWindowMs`) which switches to a one-shot `wedge_restart_loop` alert. The wedge query is the exported `queryWedgeSignals(engine, queue, handlerNames)` — name+queue-scoped, `active_healthy` = live-lock only (an expired-lock active row does NOT mask the wedge), due-delayed counted. Claimable names are derived at start via a throwaway `registerBuiltinHandlers` worker (its new `quiet` opt). Flags `--wedge-restart-minutes` / `--wedge-restart-checks` + env `GBRAIN_WEDGE_RESTART_MINUTES` / `GBRAIN_WEDGE_RESTART_CHECKS`. The worker argv is built by the exported pure `buildWorkerArgs(opts)` (appends `--nice N` when `opts.nice_requested` is set, alongside `--concurrency`/`--queue`/`--max-rss`); the niceness apply RESULT (`nice_requested`/`nice_effective`/`nice_error`, computed by the CLI in jobs.ts — the supervisor doesn't call setPriority) rides on the `started`/`worker_spawned` audit emissions (#1815). Pinned by `test/supervisor.test.ts` (16 cases), `test/supervisor-tini.test.ts`, `test/supervisor-wedge.test.ts`, and `test/supervisor-build-worker-args.test.ts`.
 - `src/core/minions/child-worker-supervisor.ts` — shared spawn-and-respawn core reused by both `MinionSupervisor` (standalone `gbrain jobs supervisor` daemon) and `src/commands/autopilot.ts` (autopilot daemon), so the two consumers can't drift into parallel-loop bugs. Pure class: NO PID file, NO signal handlers, NO `process.exit`, NO health check. Lifecycle events fire via injected `onEvent: (ChildSupervisorEvent) => void`. Exit classifier: `code === 0` leaves `crashCount` UNCHANGED (preserves flap detection across mixed exit sequences); `code != 0` follows `runDuration > stableRunResetMs ? 1 : ++crashCount`. Clean-restart budget: sliding window of code=0 exits; when count exceeds `cleanRestartBudget` (default 10) inside `cleanRestartWindowMs` (default 60s), emits `health_warn { reason: 'clean_restart_budget_exceeded' }` and applies `cleanRestartBudgetBackoffMs` (default 1s). The exit classifier special-cases `WORKER_EXIT_RSS_WATCHDOG` — `likely_cause='rss_watchdog'`, and that exit does NOT bump `crashCount` (routes to its own breaker); a dedicated `_watchdogExitTimestamps` sliding window trips a loud `rss_watchdog_loop` health_warn naming the cap when N watchdog exits land inside the window, INDEPENDENT of the stable-run reset (which would otherwise hide a >5-min-run watchdog drain loop). New opts `watchdogLoopBudget` (3), `watchdogLoopWindowMs` (600000), `watchdogBackoffMs` (30000); `ChildSupervisorEvent` extended. Public read-only accessors `childAlive`, `inBackoff`, `crashCount`; `killChild(signal)` gates on liveness (`exitCode === null && signalCode === null`), NOT `.killed` — `.killed` flips true once a signal is *sent*, so the old `!this._child.killed` guard made a follow-up SIGKILL after an ignored SIGTERM a silent no-op (#1801; the bug also lived in the `shutdown()` drain). `restartCurrentChild(graceMs)` (#1801 wedge self-heal) captures the CURRENT child ref, SIGTERM→grace→SIGKILLs THAT ref (never the respawn — closes the timer-kills-fresh-worker race), and flags `_intentionalRestart` so the exit is `likelyCause='wedge_restart'`, leaves `crashCount` UNTOUCHED (never trips `max_crashes`; like `rss_watchdog`), and respawns immediately (`backoff ms:0 reason='wedge_restart'`). `awaitChildExit(timeoutMs)` short-circuits when `child.exitCode !== null || child.signalCode !== null` so fast-SIGTERM responders don't cause a 35s shutdown hang. Test hooks `_backoffFloorMs`, `_now`. `supervisor-audit.ts` adds `rss_watchdog` as a non-clean cause + its own `CrashSummary.by_cause` bucket, and `wedge_restart` to `CLEAN_EXIT_CAUSES` (a self-heal, not a crash; denylist preserved so future causes route to `legacy`). Pinned by `test/child-worker-supervisor.test.ts` (12 cases).
 - `src/core/minions/spawn-helpers.ts` — pure `detectTini()` + `buildSpawnInvocation()` consumed by both `supervisor.ts` and `autopilot.ts` (resolves the DRY violation between the two spawn sites and makes tini wrapping testable without `mock.module()`, rule R2 of `scripts/check-test-isolation.sh`). `detectTini()` calls `execFileSync('which', ['tini'])` with explicit `env: process.env` so Bun sees runtime PATH mutations. `buildSpawnInvocation(tiniPath, cmd, args)` returns `{cmd, args}` with tini prepended when present, or the bare invocation otherwise. Pinned by `test/spawn-helpers.test.ts` (5) and `test/supervisor-tini.test.ts` (4).
+- `src/core/minions/niceness.ts` — OS scheduling-priority (niceness) primitives for the `--nice` flag. `parseNiceValue(raw)` whole-string parses + range-validates to POSIX `[-20, 19]` (rejects `"3.5"`/`"10abc"` that `parseInt` would silently truncate). `applyNiceness(nice, setPriority?, getPriority?)` calls `os.setPriority(0, n)` and ALWAYS re-reads `os.getPriority(0)` afterwards — in both the success and the catch paths — so a denied renice (EPERM) or an `RLIMIT_NICE` clamp records the real effective value (e.g. `0`), not null; returns `{applied, requested, effective, error?}`. `getEffectiveNiceness(pid, getPriority?)` reads an arbitrary pid's niceness (null on dead/unreadable). `formatNice(n)` → `+10`/`0`/`-5`. Applied only at the CLI layer (jobs.ts) so worker.ts/supervisor.ts stay embeddable. Pinned by `test/niceness.test.ts`.
+- `src/core/minions/worker-registry.ts` — live worker registry backing niceness observability. Each running `gbrain jobs work` self-registers `worker-<pid>.json` under `gbrainPath('workers')` (brain-isolated via `GBRAIN_HOME`; entries tagged with `currentBrainId()` so multiple DBs under one home don't cross-report). `registerWorker(info)` is best-effort (never blocks the worker) and returns a cleanup fn the caller wires to BOTH the shutdown `finally` AND `process.on('exit')` (the unhealthy `process.exit(1)` bypasses the awaited finally). `readWorkers(getNice?)` enumerates the dir, drops confirmed-dead pids (`classifyLiveness`: ESRCH = dead/prune, EPERM = alive/keep), applies a pid-reuse start-time guard (`ps -o lstart`, rejects a pid whose process started >5s after the entry was written), and re-measures each live worker's niceness now. Reports the worker's REAL pid, sidestepping the tini-wrapper-pid problem. Pinned by `test/worker-registry.test.ts`.
+- `src/core/minions/supervisor-pid.ts` — `readSupervisorPid(pidFile) → {pid, running}`: the shared `existsSync → readFileSync → parseInt → process.kill(pid,0)` PID-file + liveness reader extracted from the three copies in `jobs.ts` (supervisor status), `jobs.ts` (stats), and `doctor.ts`. EPERM from the liveness probe counts as running. Pinned by `test/supervisor-pid.test.ts`.
 - `src/core/minions/types.ts` — `MinionJobInput` + `MinionJobStatus` + handler context types. `MinionJobInput.max_stalled` is optional; omitted values let the schema DEFAULT (5) kick in, provided values are clamped to `[1, 100]`.
 - `src/core/minions/protected-names.ts` — side-effect-free constant module exporting `PROTECTED_JOB_NAMES` + `isProtectedJobName()`. Kept pure so queue core can import without loading handler modules.
 - `src/core/minions/handlers/shell.ts` — `shell` job handler. Spawns `/bin/sh -c cmd` (absolute path, PATH-override-safe) or `argv[0] argv[1..]` (no shell). Env allowlist `PATH, HOME, USER, LANG, TZ, NODE_ENV` + caller `env:` overrides + `inherit:`-resolved keys. UTF-8-safe stdout/stderr tail via `string_decoder.StringDecoder`. Abort (either `ctx.signal` or `ctx.shutdownSignal`) fires SIGTERM → 5s grace → SIGKILL on child. Requires `GBRAIN_ALLOW_SHELL_JOBS=1` on worker (gated by `registerBuiltinHandlers`). `ShellJobParams.inherit?: string[]` is a free-form list of snake_case config-key names; the worker resolves each via `loadConfig()` and injects the value under the derived env key (`database_url` → `GBRAIN_DATABASE_URL`; else uppercased). Names persist in `minion_jobs.data` (and the shell-audit JSONL); values never do. The canonical validator `validateShellJobParams` (sibling `shell-validate.ts`) runs PRE-ENQUEUE in both submit surfaces — `gbrain jobs submit shell` (jobs.ts:271) AND the `submit_job` op for `name='shell'` (operations.ts:2085); the handler-entry re-validation here is defense-in-depth (closes the bug class where validation ran AFTER `queue.add()` persisted the row). The validator does NOT police which config keys the agent inherits — same-uid trust model treats the agent as a peer of the worker.