docs(cli): show a complete periodic-reminder registration

docs/reference/keeping-a-watch.md

@@ -296,3 +296,31 @@ Unknown: not said yet.
   delivery guarantee.
 - **Transcript bytes as "usage".** `context-usage-threshold` measures an agent's transcript, not an account's
   allowance. For an allowance, see "A usage warning" above.
+
+## Recurring reminders for agents
+
+An agent-to-agent reminder can repeat until stopped. This is separate from
+[a person's one-shot watch](#setting-a-watch), which uses `rig queue block --wake-after`.
+
+Save this as `periodic-reminder.yaml`, replacing the example session names with your own:
+
+```yaml
+policy: periodic-reminder
+target:
+  session: worker@my-team
+message: "Finish the current action, then check the pending work."
+```
+
+Register it with all five required flags:
+
+```bash
+rig watchdog register --spec periodic-reminder.yaml --policy periodic-reminder \
+  --target-session worker@my-team --interval-seconds 600 \
+  --registered-by coordinator@my-team
+```
+
+At registration, `--policy` selects the policy; the YAML `policy` field is not the
+selector. YAML `target.session` takes precedence over `--target-session`, so keep them
+aligned. If YAML omits the target, the CLI target is the fallback. Put a non-empty
+`message` in YAML: `--message` is a shortcut only for `context-usage-threshold`.
+The first reminder is due after the interval; this example repeats every 600 seconds.

packages/cli/src/commands/watchdog.ts

@@ -85,7 +85,7 @@ export function watchdogCommand(depsOverride?: WatchdogDeps): Command {
       "Context transcripts measured 113K–153K tokens/MB. The margin is the protection " +
       "because prompt-bound consumers act only at turn boundaries",
     )
-    .option("--spec <path>", "Path to YAML spec file (optional for context-usage-threshold)")
+    .option("--spec <path>", "YAML spec file (required except for context-usage-threshold)")
     .requiredOption("--policy <policy>", "Policy name (one of: periodic-reminder, artifact-pool-ready, edge-artifact-required, workflow-keepalive, idle-gate-qitem, context-usage-threshold)")
     .requiredOption("--target-session <session>", "Canonical <member>@<rig> target")
     .requiredOption("--interval-seconds <n>", "Evaluation interval (positive integer)")
@@ -100,7 +100,27 @@ export function watchdogCommand(depsOverride?: WatchdogDeps): Command {
     .option("--active-wake-interval-seconds <n>", "(pool-ready-specific) wake-up cadence when actionable artifacts exist")
     .option("--scan-interval-seconds <n>", "(pool-ready-specific) artifact pool scan cadence")
     .option("--json", "JSON output for agents")
-    .addHelpText("after", "\nTranscript density varies by session shape; do not tune a context threshold near the context wall.\n\nThe returned job id can be attached to a deliberate park with: rig queue block <qitemId> --on <blocker> --continuation <what-resumes> --wake-watchdog <jobId>")
+    .addHelpText("after", `
+Recurring reminder for an agent (not a person's one-shot queue watch):
+  Save periodic-reminder.yaml:
+    policy: periodic-reminder
+    target:
+      session: worker@my-team
+    message: "Finish the current action, then check the pending work."
+
+  rig watchdog register --spec periodic-reminder.yaml --policy periodic-reminder \\
+    --target-session worker@my-team --interval-seconds 600 \\
+    --registered-by coordinator@my-team
+
+All five flags above are required for periodic-reminder. At registration,
+--policy selects the policy; a YAML policy field is not the selector.
+YAML target.session takes precedence over --target-session; keep them aligned.
+Put the reminder message in YAML. --message is only a context-usage-threshold shortcut.
+For a person's one-shot watch, use rig queue block --wake-after instead.
+
+Transcript density varies by session shape; do not tune a context threshold near the context wall.
+
+The returned job id can be attached to a deliberate park with: rig queue block <qitemId> --on <blocker> --continuation <what-resumes> --wake-watchdog <jobId>`)
     .action(async (opts: {
       spec?: string;
       policy: string;

packages/daemon/specs/agents/shared/skills/core/watchdog/SKILL.md

@@ -94,6 +94,11 @@ pools and missing edge artifacts.
 
 ## Active surface
 
+For a worked `periodic-reminder` YAML spec, full registration command and required
+flags, read `rig context get reference/keeping-a-watch.md#recurring-reminders-for-agents`.
+This is an agent's recurring reminder. A person's watch uses the one-shot queue
+pattern in `rig context get reference/keeping-a-watch.md#setting-a-watch`.
+
 Daemon `rig watchdog` is the active host coordination surface for new
 work. History records only loud evaluations (`sent` / `terminal`);
 quiet skip reasons are NOT recorded — POC parity so agents are not

scripts/skill-edge-digests.generated.json

@@ -26,7 +26,7 @@
       "core/session-source-fork/SKILL.md": "c5381d130e0a58c2dd6669770a391314b0db0797df07641cf2d3f9804fac21a2",
       "core/specification-system/SKILL.md": "5226d6e8b1362df89ba3d5afd82e4b4add355870132ca4b140d7f9f4324ffdc1",
       "core/topology-mutation-and-seat-management/SKILL.md": "527ca074432ce6513fb25cd27e8c709dabe0c91361b8999e09b272f3813abe62",
-      "core/watchdog/SKILL.md": "24b2e756e3e9d067fa93a4b5fa5f48a5cce511e8b1a5b360b1c39bc09bc95d82",
+      "core/watchdog/SKILL.md": "88e097e7fe7321e166541b9eac42016fa7a3d362a86fde8946e666f22409f145",
       "core/working-with-an-openrig-team/SKILL.md": "01b0aaeb3454bbb4b881dba058022d5a80e62da15516be7db8390b281dd3a228",
       "pm/backlog-capture/SKILL.md": "345c2b47fc85e48c15c0d42bbb48fb27dd3b0ceec36bf59dc6ed20daaea47a84",
       "pm/context-builder/SKILL.md": "0134c9b0a9f196565109f7f51b6ec78d5c3e4b5982a0d7105a93b29952625b3c",
@@ -131,7 +131,7 @@
       "core/session-source-fork/SKILL.md": "c5381d130e0a58c2dd6669770a391314b0db0797df07641cf2d3f9804fac21a2",
       "core/specification-system/SKILL.md": "5226d6e8b1362df89ba3d5afd82e4b4add355870132ca4b140d7f9f4324ffdc1",
       "core/topology-mutation-and-seat-management/SKILL.md": "527ca074432ce6513fb25cd27e8c709dabe0c91361b8999e09b272f3813abe62",
-      "core/watchdog/SKILL.md": "24b2e756e3e9d067fa93a4b5fa5f48a5cce511e8b1a5b360b1c39bc09bc95d82",
+      "core/watchdog/SKILL.md": "88e097e7fe7321e166541b9eac42016fa7a3d362a86fde8946e666f22409f145",
       "core/working-with-an-openrig-team/SKILL.md": "01b0aaeb3454bbb4b881dba058022d5a80e62da15516be7db8390b281dd3a228",
       "pm/backlog-capture/SKILL.md": "345c2b47fc85e48c15c0d42bbb48fb27dd3b0ceec36bf59dc6ed20daaea47a84",
       "pm/context-builder/SKILL.md": "0134c9b0a9f196565109f7f51b6ec78d5c3e4b5982a0d7105a93b29952625b3c",

skills/_canonical/core/watchdog/SKILL.md

@@ -94,6 +94,11 @@ pools and missing edge artifacts.
 
 ## Active surface
 
+For a worked `periodic-reminder` YAML spec, full registration command and required
+flags, read `rig context get reference/keeping-a-watch.md#recurring-reminders-for-agents`.
+This is an agent's recurring reminder. A person's watch uses the one-shot queue
+pattern in `rig context get reference/keeping-a-watch.md#setting-a-watch`.
+
 Daemon `rig watchdog` is the active host coordination surface for new
 work. History records only loud evaluations (`sent` / `terminal`);
 quiet skip reasons are NOT recorded — POC parity so agents are not