feat(triggers): declarative time-relative trigger (#1874) - #3230
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Time-relative business rules ("alert 60 days before a contract's end_date")
could only be expressed as a record_change flow gated on a date-equality
condition like `end_date == daysFromNow(60)`. That predicate is evaluated only
when the record happens to change, so it fires only if a record is edited on
exactly the threshold day — i.e. almost never, unattended. The robust
alternative was a hand-written cron + range query that every author
re-implemented (contracts renewal_alert, hr document_expiring_soon,
procurement po_overdue, ...).
A flow's start node can now declare a `timeRelative` descriptor:
config: {
timeRelative: {
object: 'contracts',
dateField: 'end_date',
offsetDays: [60, 30, 7], // T-minus reminders — fires on each threshold day
// — or — withinDays: 30 // "expiring soon" range; negative = overdue lookback
filter: { status: 'active' }, // optional, ANDed with the date window
},
schedule: { type: 'cron', expression: '0 8 * * *' }, // optional; default daily 08:00 UTC
}
The new time_relative trigger (TimeRelativeTriggerPlugin, shipped in
@objectstack/trigger-schedule) sweeps the object on that schedule and launches
the flow once per matching record, with the record on the automation context —
so the start-node condition gate and {record.<field>} interpolation work exactly
as for a record-change flow. Because the window is evaluated every day, a
threshold is never missed regardless of when the record last changed.
- spec: new TimeRelativeTriggerSchema (@objectstack/spec/automation), the Zod
source of truth; exactly one of withinDays | offsetDays is required.
- engine: resolveTriggerBinding routes a start node carrying config.timeRelative
to the time_relative trigger, ahead of the plain schedule trigger (whose
behavior is unchanged) since such a flow also carries a schedule cadence.
- trigger: composes the schedule trigger's job service (sweep cadence) with the
ObjectQL engine (date-window query). The discovery query runs as a system
operation (RLS-bypassing), is capped at maxRecords/tick (default 1000), and
isolates per-record failures so one bad row never aborts the sweep.
- lint: os validate gains readiness checks for the new descriptor (unknown swept
object, ambiguous draft status).
- cli: serve.ts arms the plugin in the triggers group.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AHzW68suiFuu6GdJyea8U4
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📓 Docs Drift CheckThis PR changes 5 package(s): 110 hand-written doc(s) reference the affected code and may need an implementation-accuracy re-verification:
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…gger (#1874) Auto-generated from the new TimeRelativeTriggerSchema (packages/spec). content/docs/references/ is generated by build-docs.ts and gated by the `check:docs` CI job — this adds the missing automation/time-relative-trigger.mdx and updates the automation index/meta. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AHzW68suiFuu6GdJyea8U4
…rts (#1874) gen:api-surface — records the 5 new @objectstack/spec/automation exports (TimeRelativeTriggerSchema, TimeRelativeTrigger, TimeRelativeTriggerInput, TIME_RELATIVE_DEFAULT_CRON, TIME_RELATIVE_DEFAULT_MAX_RECORDS). Additive only: 0 breaking, 5 added. Gated by the check:api-surface CI job. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AHzW68suiFuu6GdJyea8U4
os-zhuang
marked this pull request as ready for review
July 18, 2026 16:14
os-zhuang
added a commit
that referenced
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Jul 18, 2026
Adds the declarative time-relative trigger to the two hand-written author-facing surfaces: skills/objectstack-automation/SKILL.md (a Time-relative triggers section, framed as the replacement for the date-equality-on-record-change anti-pattern) and content/docs/automation/flows.mdx (a Time-relative flow example). The auto-generated reference and package README landed with the feature (#3230).
akarma-synetal
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to akarma-synetal/framework
that referenced
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Aug 3, 2026
… 进入 v17 (objectstack-ai#4732) * chore: bump objectui to 785b8a5d432c fix(fields)!: FieldWidgetComponentProps stops claiming to have every key (objectstack-ai#3221) (objectstack-ai#3230) objectui@785b8a5d432cf009389a1a9180fdac2a8297543f * docs(changeset): carry the objectui batch's authoring semantics into the pin changeset The auto-generated pin changeset lists commit subjects only, so the one author-BREAKING change in the range (objectui#3203 — `ActionParam` loses the nine resolved-only picker keys) would have reached the release notes as a one-line Chinese subject with no migration and no rationale. Spell out the FROM/TO prescription and why the removal is not a regression (the keys were never storable: `ActionParamSchema` is `.strict()` and its alias table names `referenceto -> reference`), plus the author-visible halves of objectui#3196 / objectstack-ai#3204 / objectstack-ai#3210. Also drops the two `fix(ci)` lines from the enumerated range: they release nothing and are not in the shipped bundle, so listing them as "frontend changes" overstates what the artifact carries. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015Br2xsJsczFsTR9bvbh2Ny --------- Co-authored-by: Claude <noreply@anthropic.com>
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Problem (#1874)
Time-relative business rules ("alert 60 days before a contract's
end_date") could only be expressed as arecord_changeflow gated on a date-equality condition likeend_date == daysFromNow(60). That predicate is evaluated only when the record happens to change, so it fires only if a record is edited on exactly the threshold day — i.e. almost never, unattended. The robust alternative was a hand-written cron + range query that every author re-implemented (contractsrenewal_alertT-60/30/7, hrdocument_expiring_soon, procurementpo_overdue, …).What this adds
A flow's start node can now declare a
timeRelativedescriptor instead:The new
time_relativetrigger (TimeRelativeTriggerPlugin, shipped in@objectstack/trigger-schedule) sweeps the object on that schedule and launches the flow once per matching record, with the record on the automation context — so the start-nodeconditiongate and{record.<field>}interpolation work exactly as for a record-change flow. Because the window is evaluated every day, a threshold is never missed regardless of when the record last changed.withinDays: NdateField ∈ [today, today + N](upcoming).N < 0= overdue lookback.offsetDays: [a, b, …]today + a,today + b, …).Changes by package
@objectstack/spec— newTimeRelativeTriggerSchema(@objectstack/spec/automation), the Zod source of truth. Exactly one ofwithinDays|offsetDaysis required;object/dateFieldare snake_case (contract-first).@objectstack/service-automation—resolveTriggerBindingroutes a start node carryingconfig.timeRelativeto thetime_relativetrigger, ahead of the plainscheduletrigger (whose behavior is unchanged) since such a flow also carries aschedulecadence. Binding-audit hint mentions the new type.@objectstack/trigger-schedule—TimeRelativeTrigger+TimeRelativeTriggerPlugin. Composes the schedule trigger's job service (sweep cadence) with the ObjectQL engine (date-window query, the canonical{ dateField: { $gte, $lte } }map form with concrete ISO bounds). The discovery query runs as a system operation (RLS-bypassing — a background sweep sees all rows), is capped atmaxRecords/tick, and isolates per-record failures so one bad row never aborts the sweep.@objectstack/lint—os validategains readiness checks for the new descriptor (unknown swept object; ambiguous draft status).@objectstack/cli—serve.tsarmsTimeRelativeTriggerPluginin thetriggersgroup.Design notes
ScheduleTriggerPluginkeeps its exact dependency surface (job service only);TimeRelativeTriggerPluginadds the ObjectQL dependency it needs for the sweep query. Both ship in@objectstack/trigger-schedule(the affected package named in the issue).Flow.type. Time-relative flows staytype: 'schedule'; the trigger is selected by the presence ofconfig.timeRelative, so the flow-trigger conformance ledger (keyed on theFlow.typeenum) is unaffected.{today}are only resolved upstream, never byIDataEngine.find), mirroring the platform's ownLifecycleServiceretention sweep.Testing
TimeRelativeTriggerSchema— validation (mutual exclusivity, snake_case, bounds). ✅TimeRelativeTrigger— window math,wherebuilding, per-record fan-out, offset dedup,maxRecordscap, per-record + query error isolation, schedule default, unknown-object warning,stop()/idempotency, plugin wiring. ✅time_relativebinding resolution + precedence over the schedule trigger. ✅@objectstack/trigger-schedule(42),service-automationengine (121),specautomation (316),lint(11) suites pass; the full@objectstack/clibuild closure (54 packages) typechecks green. Changeset included.Closes #1874
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