The runtime for shared topics:
- pubsub_repo: fan_out_publish gains `AND t.shared = FALSE` (a shared
trigger never fires on a per-app publish); new fan_out_shared_publish
matches `shared = true` pubsub triggers on the resolved owning group,
each delivery stamped with the writer app_id (M2 model).
- GroupPubsubService trait (shared) + GroupPubsubServiceImpl: resolve the
owning group (kind='topic') from cx.app_id's chain, require editor+
(GroupPubsubPublish, fails closed for anon), size-cap, fan out.
- SDK: `pubsub::shared_topic("name")` -> GroupTopicHandle with
`.publish(subtopic, msg)` / `.publish(msg)`; wired through Services +
the picloud binary (reuses the one PubsubRepo).
- authz: Capability::GroupPubsubPublish(GroupId), editor+ / script:write.
The owning-group chain walk is the isolation boundary; a sibling-subtree
app never resolves the topic.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The runtime half — suppressions now actually decline inherited templates.
- Triggers (live, per-event): a correlated NOT EXISTS anti-join
(TRIGGER_SUPPRESSION_ANTIJOIN) appended to all four dispatch match
queries (list_matching_kv/docs/files + the pubsub fan-out). It excludes a
group-owned trigger whose handler script name the firing app suppresses;
`$1` is the firing app (already bound), and the `t.group_id IS NOT NULL`
guard keeps an app's OWN trigger unsuppressable.
- Routes (rebuild-time): compile_effective_routes takes a
`suppressed_paths: &HashSet<(AppId, path)>` and drops an inherited
(`depth > 0`) route at a suppressed path — the binding 404s.
rebuild_route_table loads the set via a new
RouteRepository::list_route_suppressions, so every existing rebuild edge
(route CRUD, apply, tree mutations) already applies it. No new
invalidation edges; the marker CASCADEs on app delete.
Pinned by tests/template_suppression.rs (live DB): a suppressing app
matches NEITHER the inherited trigger NOR route; a sibling that did not
suppress still inherits both; the app's OWN trigger on the suppressed
handler still fires (suppression is inheritance-only).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The runtime heart: a descendant app's event now fires its ancestor
groups' trigger templates, resolved LIVE (no materialization).
- trigger_repo: list_matching_kv/docs/files prepend CHAIN_LEVELS_CTE and
`JOIN chain c ON (t.app_id = c.app_owner OR t.group_id = c.group_owner)`
(bind $1 = app_id), so each returns the app's own triggers PLUS
ancestor-group templates in one statement. NULL-comparison semantics
keep app/group rows from cross-matching; each row matches at exactly one
chain depth (no dup fan-out).
- pubsub_repo: same union on the publish fan-out query.
- The outbox row stamps the firing app_id + the (group-owned) script_id;
the dispatcher's existing script_invocable() (app-owned OR invocable via
chain membership) already runs a group handler under a descendant app —
the Phase-4 inheriting-app boundary, unchanged.
Glob/ops/topic filtering in Rust is untouched. 404 manager-core unit
tests green; clippy -D clean. Cross-subtree firing is journey-proven in T4.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Durable pub/sub through the universal outbox — the sixth trigger kind.
- `pubsub::publish_durable(topic, message)` Rhai SDK (no handle; topics
ARE the grouping unit). Message JSON-encoded; Blobs base64 at any
depth.
- `PubsubService` trait in picloud-shared with the topic matcher +
validator (exact / `<prefix>.*` / `*`; mid-pattern wildcards
rejected). `PostgresPubsubRepo` + `PubsubServiceImpl` in manager-core.
- Publish-time fan-out: one outbox row per matching enabled pubsub
trigger, all in ONE transaction (no half-fan-out on crash). No
matching trigger → publish succeeds silently, zero rows.
- `pubsub:*` trigger kind via Layout-E (0020: widen both CHECKs +
pubsub_trigger_details + partial index), TriggerEvent::Pubsub +
ctx.event.pubsub, dispatcher arm, admin endpoint POST /triggers/pubsub
(validates topic pattern + reuses validate_trigger_target).
- AppPubsubPublish capability → script:write (seven-scope held).
- Dashboard Pub/Sub trigger form on the Triggers tab + list rendering.
publish_ephemeral stays deferred to v1.2. ~18 new tests (service
in-memory incl. transactional-rollback, shared matcher, bridge
encoding). No DB required for the suite.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
