filescom-expectations

SkillFiles & storage

Expectations let your Files.com site define what “correct” file delivery looks like, continuously evaluate whether it happened, and keep history when it did not.

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What this skill tells your AI

The instructions your AI receives, as published by files-com/files-cli in skills/filescom-expectations/SKILL.md and read by Ahel’s review.

Expectations let your Files.com site define what “correct” file delivery looks like, continuously evaluate whether it happened, and keep history when it did not.

Expectations are meant to answer operational questions like:

  • Did the expected file arrive?
  • Was it on time?
  • Did it meet the required shape and count rules?
  • Is there an active issue someone needs to acknowledge?

Expectations are different from Automations and Syncs. Automations and Syncs act on files; Expectations monitor whether expected files arrived on time, in the right place, and in the right shape. In practice, Expectations are the sensor and Automations are the actuator.

An Expectation combines four concepts:

  1. Scope: where to look for candidate files, using path, source, and optional exclude_pattern.
  2. Trigger / timing: when a window opens and how long it stays eligible, using trigger, schedule fields, lookback_interval, late_acceptance_interval, inactivity_interval, and max_open_interval.
  3. Criteria: what must be true for the window to succeed, using the structured criteria JSON document.
  4. Outcome history: what happened over time, exposed through ExpectationEvaluation history and ExpectationIncident lifecycle records.

Scope and matching

Expectations reuse the familiar Files.com path-plus-glob model.

The path field identifies the folder scope, while source identifies which files within that scope are candidates. exclude_pattern removes files from consideration.

Like Automations, these fields support glob-style matching. Expectations treat those matches as one logical candidate set for each window. A single Expectation does not implicitly fan out into separate per-customer or per-folder evaluations just because the path contains wildcards.

Expectation windows

Expectations are evaluated in windows.

Each window is persisted as an ExpectationEvaluation record. A window opens, remains open while evidence can still arrive, and then closes into a terminal result such as success, late, missing, or invalid.

An Expectation has only one open window at a time.

Trigger modes

Expectations can open windows in three ways:

  • daily: run on a recurring daily/weekly/monthly/quarterly/yearly cadence using interval and either recurring_day or recurring_days.
  • custom_schedule: run using either the reusable Site-level Schedule selected by schedule_id or specific weekdays and times stored on the Expectation.
  • manual: an operator explicitly opens the window.

Schedule-driven expectations define an on-time deadline and may optionally remain eligible to close as late during late_acceptance_interval.

Manual expectations have no concept of late; they open when triggered and close based on inactivity or hard-stop timing.

Success criteria

The criteria field is a structured JSON object describing what counts as success for the window.

Criteria v1 can express things like:

  • file count constraints
  • total byte constraints
  • allowed extensions
  • filename regex validation
  • forbidden files
  • required named or globbed files with their own per-file constraints

Criteria v2 adds content_validation, which runs a customer-authored Files Transform Script in either per_file or whole_batch mode. Per-file scripts receive the file contents parsed by FTS as payload. Whole-batch scripts receive an array of file objects containing path, name, size, last_modified_at, and each file's parsed payload.

A content-validation script returns true or { success: true } to pass. It returns false or { success: false, errors: [...] } to fail. Error entries may be strings or structured objects with values such as message, field, row, expected, and actual; these details are preserved in readable form in the Evaluation's criteria_errors. Script, parsing, download, and size-limit errors also fail the criterion. Each file is limited to 100 MB, and whole-batch mode additionally limits the combined raw input to 100 MB.

Required file rule keys may also include standard strftime-style date/time tokens like %Y, %m, and %d. Those tokens are resolved at evaluation time using a stable window anchor: schedule-driven expectations use the window's deadline_at, while manual and upload expectations use the window's opened_at.

History and incidents

The Expectation itself stores summary state like last_evaluated_at, last_success_at, last_failure_at, and last_result.

For deeper inspection:

  • ExpectationEvaluation history shows each open or closed window and the evidence captured for it.
  • ExpectationIncident records track ongoing failure situations over time, including acknowledge, snooze, and resolve actions.

Manual windows do not open incidents in v1. Schedule-driven failures can open incidents, and later qualifying success can resolve them.

All subcommands also accept the flags documented in CONTEXT.md (--api-key, --format, --workspace-id, --debug, and the pagination flags --cursor / --per-page / --max-pages on list). Those are not repeated below.

Commands

files-cli expectations list

List Expectations.

FlagTypeDescription
--sort-byobjectIf set, sort records by the specified field in either asc or desc direction. Valid fields are workspace_id, name or disabled.
--filterobjectIf set, return records where the specified field is equal to the supplied value. Valid fields are disabled and workspace_id. Valid field combinations are [ workspace_id, disabled ].

files-cli expectations find

Show Expectation.

FlagTypeDescription
--idint64Expectation ID. Required.

files-cli expectations create [path]

Create Expectation.

FlagTypeDescription
--namestringExpectation name.
--descriptionstringExpectation description.
--pathstringPath scope for the expectation. Supports workspace-relative presentation.
--sourcestringSource glob used to select candidate files.
--exclude-patternstringOptional source exclusion glob.
--disabledboolIf true, the expectation is disabled.
--triggerenumHow this expectation opens windows. One of: manual, upload, daily, custom_schedule.
--intervalstringIf trigger is daily, this specifies how often to run the expectation.
--recurring-dayint64If trigger is daily, this selects the day number inside the chosen interval.
--recurring-days[]int64If trigger is daily, this selects one or more day numbers inside a week, month, quarter, or year interval.
--schedule-idint64If trigger is custom_schedule, the reusable Schedule used instead of the Expectation's schedule fields.
--schedule-days-of-week[]int64If trigger is custom_schedule, the 0-based weekdays used by the schedule.
--schedule-times-of-day[]stringTimes of day in HH:MM format for the Expectation schedule.
--schedule-time-zonestringTime zone used by the Expectation schedule.
--holiday-regionstringOptional holiday region used by the Expectation schedule.
--lookback-intervalint64How many seconds before the due boundary the window starts.
--late-acceptance-intervalint64How many seconds a schedule-driven window may remain eligible to close as late.
--inactivity-intervalint64How many quiet seconds are required before final closure.
--max-open-intervalint64Hard-stop duration in seconds for unscheduled expectations.
--criteriaobjectVersioned success criteria definition for the expectation, including optional Files Transform Script content validation in criteria v2.
--workspace-idint64Workspace ID. 0 means the default workspace.

files-cli expectations trigger-evaluation

Manually open an Expectation window.

FlagTypeDescription
--idint64Expectation ID. Required.

files-cli expectations update [path]

Update Expectation.

FlagTypeDescription
--idint64Expectation ID. Required.
--namestringExpectation name.
--descriptionstringExpectation description.
--pathstringPath scope for the expectation. Supports workspace-relative presentation.
--sourcestringSource glob used to select candidate files.
--exclude-patternstringOptional source exclusion glob.
--disabledboolIf true, the expectation is disabled.
--triggerenumHow this expectation opens windows. One of: manual, upload, daily, custom_schedule.
--intervalstringIf trigger is daily, this specifies how often to run the expectation.
--recurring-dayint64If trigger is daily, this selects the day number inside the chosen interval.
--recurring-days[]int64If trigger is daily, this selects one or more day numbers inside a week, month, quarter, or year interval.
--schedule-idint64If trigger is custom_schedule, the reusable Schedule used instead of the Expectation's schedule fields.
--schedule-days-of-week[]int64If trigger is custom_schedule, the 0-based weekdays used by the schedule.
--schedule-times-of-day[]stringTimes of day in HH:MM format for the Expectation schedule.
--schedule-time-zonestringTime zone used by the Expectation schedule.
--holiday-regionstringOptional holiday region used by the Expectation schedule.
--lookback-intervalint64How many seconds before the due boundary the window starts.
--late-acceptance-intervalint64How many seconds a schedule-driven window may remain eligible to close as late.
--inactivity-intervalint64How many quiet seconds are required before final closure.
--max-open-intervalint64Hard-stop duration in seconds for unscheduled expectations.
--criteriaobjectVersioned success criteria definition for the expectation, including optional Files Transform Script content validation in criteria v2.
--workspace-idint64Workspace ID. 0 means the default workspace.

files-cli expectations delete

Delete Expectation.

FlagTypeDescription
--idint64Expectation ID. Required.

Signals

GitHub stars
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Last commit
Oct 2026
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Item type
skill
Key
filescom-expectations
Source
github.com/files-com/files-cli