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watcher

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Create and manage polling watchers that monitor external services (Gmail, Google Calendar, GitHub, Linear, Outlook) for events and process them with custom action prompts

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How to use this skill

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  2. Copy the prompt below and paste it into your agent.
  3. Review the proposed files and risks before you approve installation.
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Source SKILL.md: https://github.com/vellum-ai/vellum-assistant/blob/HEAD/skills/watcher/SKILL.md

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First, summarize what it does, its dependencies, license status if identifiable, and any risks. Show the exact files you propose to add under .agents/skills/watcher/. Do not write files or run scripts until I approve.

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Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

Create and manage watchers that poll external services for events and process them with an action prompt.

Concepts

  • Provider - The external service to poll (e.g. "gmail"). Each provider defines how to fetch and parse events.
  • Action prompt - LLM instructions for handling detected events. Sent along with event data to a background conversation.
  • Poll interval - How often to check for new events (minimum 15 seconds, default 60 seconds).
  • Digest - Summary of recent watcher activity, grouped by watcher with time-based filtering.

Lifecycle

  1. Create a watcher with assistant watchers create, specifying a name, provider, and action prompt.
  2. The system polls the provider at the configured interval.
  3. Detected events are processed according to the action prompt.
  4. Use assistant watchers digest to review recent activity.

Available Commands

Create a watcher

assistant watchers create \
  --name <name> \
  --provider <provider> \
  --action-prompt <prompt> \
  [--poll-interval <ms>] \
  [--config <json>] \
  [--credential-service <service>]
FlagRequiredDescription
--nameYesA human-readable name for this watcher (e.g. "My Gmail")
--providerYesThe provider to poll (see Available Providers below)
--action-promptYesInstructions for the LLM on how to handle detected events
--poll-intervalNoHow often to poll in milliseconds. Defaults to 60000 (1 minute). Minimum 15000
--configNoProvider-specific configuration as JSON (e.g. filter criteria)
--credential-serviceNoOverride the credential service to use. Defaults to the provider's required service

Example:

assistant watchers create \
  --name "My Gmail" \
  --provider gmail \
  --action-prompt "Summarize new emails and notify me if anything is urgent"

List watchers

assistant watchers list [--id <watcherId>] [--enabled-only]
FlagRequiredDescription
--idNoShow detailed info for a specific watcher including recent events
--enabled-onlyNoOnly show enabled watchers

Example:

# List all watchers
assistant watchers list

# Show details for a specific watcher
assistant watchers list --id abc123

Update a watcher

assistant watchers update <watcherId> \
  [--name <name>] \
  [--action-prompt <prompt>] \
  [--poll-interval <ms>] \
  [--enabled | --disabled] \
  [--config <json>]
FlagRequiredDescription
<watcherId>YesThe ID of the watcher to update (positional argument)
--nameNoNew name for the watcher
--action-promptNoNew action prompt for event processing
--poll-intervalNoNew poll interval in milliseconds (minimum 15000)
--enabledNoEnable the watcher
--disabledNoDisable the watcher
--configNoNew provider-specific configuration as JSON

Example:

# Change the action prompt
assistant watchers update abc123 --action-prompt "Flag urgent emails and ignore newsletters"

# Disable a watcher temporarily
assistant watchers update abc123 --disabled

Delete a watcher

assistant watchers delete <watcherId>

Permanently deletes a watcher and all its event history.

Example:

assistant watchers delete abc123

View watcher digest

assistant watchers digest [--id <watcherId>] [--hours <n>] [--limit <n>]
FlagRequiredDescription
--idNoFilter to events from a specific watcher. If omitted, shows events from all watchers
--hoursNoHow many hours back to look. Defaults to 24
--limitNoMaximum number of events to return. Defaults to 50

Example:

# See all watcher activity from the last 24 hours
assistant watchers digest

# See activity from a specific watcher over the last 8 hours
assistant watchers digest --id abc123 --hours 8

Available Providers

ProviderDescription
gmailMonitor a Gmail inbox for new emails
google-calendarMonitor Google Calendar for new or updated events
githubMonitor GitHub for repository activity
linearMonitor Linear for issue updates
outlookMonitor an Outlook inbox for new emails
outlook-calendarMonitor Outlook Calendar for new or updated events

Usage Notes

  • Use assistant watchers create when the user wants to monitor an external source (e.g. "watch my Gmail for important emails").
  • assistant watchers digest is the go-to command when the user asks "what happened with my email?" or similar questions about watcher activity.
  • Watchers can be enabled/disabled via assistant watchers update without deleting them -- use --disabled to pause and --enabled to resume.
  • Each provider requires appropriate credentials to be configured. The --credential-service flag can override the default credential service if needed.