application-jobs — IMP FORGE

Forge jobs module — background task queue (PostgreSQL/SQLite backends).

Tier	application
Role	unclassified (baselined)
Path	`crates/application/jobs`
Edition	2024
Targets	application_jobs, pg_forge_jobs
Public items	25 across 4 modules
Tests	2

What it is for

application-jobs — background task queue.

B-009: before this, migrations() returned Vec::new() and migrate_pending returned Ok(0), so jobs/job_attempts (plus the fence/lease/backoff/DLQ columns and constraints added by migrations 002-010, crates/infrastructure/jobs/migrations/) were never created by anything that actually called this module's own migration path. Mirrors application-encounters's pattern exactly.

Capabilities

`JobsModule`

application-jobs — background task queue.

Item
`pub struct JobsModule`
`JobsModule :: fn new() -> Self`
`JobsModule :: fn name(& self) -> & 'static str`
`JobsModule :: fn version(& self) -> & 'static str`
`JobsModule :: fn migrations(& self) -> Vec <MigrationSet>`
`JobsModule :: async fn migrate_pending(& self, pool : & PgPool) -> std::result::Result <u32, MigrationError>`
`JobsModule :: fn permission_codes(& self) -> Vec <String>`

`api (other)`

HTTP API routers for application-jobs.

Item
`fn admin_router <S>() -> Router <S> where S : Clone + Send + Sync + 'static, PgPool : FromRef <S>,`

`api::jobs_admin (other)`

Jobs admin REST router.

Item
`fn router <S>() -> Router <S> where S : Clone + Send + Sync + 'static, PgPool : FromRef <S>,`

`CancelQuery`

Jobs admin REST router.

Item
`pub struct CancelQuery`

`CleanupInput`

Jobs admin REST router.

Item
`pub struct CleanupInput`

`CountQuery`

Jobs admin REST router.

Item
`pub struct CountQuery`

`DetailQuery`

Jobs admin REST router.

Item
`pub struct DetailQuery`

`ListQuery`

Jobs admin REST router.

Item
`pub struct ListQuery`

`RetryFailedInput`

Jobs admin REST router.

Item
`pub struct RetryFailedInput`

`services::jobs (other)`

Jobs service — thin wrapper around

Item
`async fn queue_stats(pool : & PgPool, tenant_id : Uuid) -> Result <QueueStats, JobError>`
`async fn export_queue_stats(pool : & PgPool, tenant_id : Uuid, registry : & Registry,) -> Result <QueueStats, JobError>`
`async fn list_by_status(pool : & PgPool, tenant_id : Uuid, status : JobStatus,) -> Result <Vec <Job>, JobError>`
`async fn get(pool : & PgPool, tenant_id : Uuid, id : Uuid) -> Result <Job, JobError>`
`async fn count_by_status(pool : & PgPool, tenant_id : Uuid, status : JobStatus,) -> Result <i64, JobError>`
`async fn retry_failed(pool : & PgPool, tenant_id : Uuid, job_type : Option <& str>,) -> Result <u64, JobError>`
`async fn cancel(pool : & PgPool, tenant_id : Uuid, id : Uuid) -> Result <(), JobError>`
`async fn cleanup(pool : & PgPool, days_old : i32) -> Result <u64, JobError>`
`async fn list_attempts(pool : & PgPool, tenant_id : Uuid, job_id : Uuid,) -> Result <Vec <JobAttempt>, JobError>`
`async fn latest_attempt(pool : & PgPool, tenant_id : Uuid, job_id : Uuid,) -> Result <Option <JobAttempt>, JobError>`

How to use it

No examples/ target and no doctest in this crate's rustdoc. The tests listed under Verification are the closest executable usage.

Module structure

application_jobs

api
api::jobs_admin
services
services::jobs

flowchart TD
  n_application_jobs["application_jobs"]
  n_application_jobs --> n_api["api"]
  n_api --> n_api__jobs_admin["jobs_admin"]
  n_application_jobs --> n_services["services"]
  n_services --> n_services__jobs["jobs"]

Public surface

`crate root`

Item	What it is
`pub struct JobsModule`	—
`JobsModule :: fn new() -> Self`	—
`JobsModule :: fn name(& self) -> & 'static str`	—
`JobsModule :: fn version(& self) -> & 'static str`	—
`JobsModule :: fn migrations(& self) -> Vec <MigrationSet>`	—
`JobsModule :: async fn migrate_pending(& self, pool : & PgPool) -> std::result::Result <u32, MigrationError>`	—
`JobsModule :: fn permission_codes(& self) -> Vec <String>`	—

`api`

Item	What it is
`fn admin_router <S>() -> Router <S> where S : Clone + Send + Sync + 'static, PgPool : FromRef <S>,`	Admin router for jobs surfaces, generic over the consumer's state `S`.

`api::jobs_admin`

Item	What it is
`pub struct ListQuery`	—
`pub struct CountQuery`	—
`pub struct DetailQuery`	—
`pub struct RetryFailedInput`	—
`pub struct CancelQuery`	—
`pub struct CleanupInput`	—
`fn router <S>() -> Router <S> where S : Clone + Send + Sync + 'static, PgPool : FromRef <S>,`	—

`services::jobs`

Item	What it is
`async fn queue_stats(pool : & PgPool, tenant_id : Uuid) -> Result <QueueStats, JobError>`	US-2.4.9: the tenant's queue-health snapshot — depth by status, oldest ready-pending age, failure counts by class, per-type backlog
`async fn export_queue_stats(pool : & PgPool, tenant_id : Uuid, registry : & Registry,) -> Result <QueueStats, JobError>`	US-2.4.9: export the queue-health snapshot into a `application-metrics` `Registry` as gauges — one per status / failure-class / job-type, plus the oldest ready-pending age — so queue health is a real metric, not just an ad-hoc REST payload
`async fn list_by_status(pool : & PgPool, tenant_id : Uuid, status : JobStatus,) -> Result <Vec <Job>, JobError>`	List jobs for a tenant filtered by status
`async fn get(pool : & PgPool, tenant_id : Uuid, id : Uuid) -> Result <Job, JobError>`	Fetch one job scoped to its tenant
`async fn count_by_status(pool : & PgPool, tenant_id : Uuid, status : JobStatus,) -> Result <i64, JobError>`	Convenience over `list_by_status` — count rows in a status for the dashboard widget
`async fn retry_failed(pool : & PgPool, tenant_id : Uuid, job_type : Option <& str>,) -> Result <u64, JobError>`	Retry failed jobs for a tenant by resetting their status to `pending` + clearing `attempts` / `last_error`
`async fn cancel(pool : & PgPool, tenant_id : Uuid, id : Uuid) -> Result <(), JobError>`	Cancel a pending or running job
`async fn cleanup(pool : & PgPool, days_old : i32) -> Result <u64, JobError>`	Cleanup terminal jobs older than `days_old`
`async fn list_attempts(pool : & PgPool, tenant_id : Uuid, job_id : Uuid,) -> Result <Vec <JobAttempt>, JobError>`	List the attempt-log for one job (Sprint 0.2 event log)
`async fn latest_attempt(pool : & PgPool, tenant_id : Uuid, job_id : Uuid,) -> Result <Option <JobAttempt>, JobError>`	Most recent attempt for triage ("what class was the last failure?")

No pub use re-exports: every item above is declared in this crate.

Boundary

Reaches into infrastructure, platform.

Shares tier application with 120 other crates: application-agreements, application-ai, application-analytics, application-approvals, application-assessments, application-audit-log, application-auth, application-billing, … (120 total).

_What this crate deliberately does NOT own is a judgment. No committed registry records one for it, so none is stated here._

Where it sits

Tier (ontology)	`application`
Architectural role (taxonomy)	`unclassified (baselined)`
Location	`crates/application/jobs`
Vocabulary in force (lexicon)	`current`

Tier flow. Which tiers this crate's own edges cross.

flowchart LR
  n_application["application"] --> n_infrastructure["infrastructure"]
  n_application["application"] --> n_platform["platform"]

Dependencies

Runtime, in this workspace.

Crate	Tier	Optional	Only on
`application-core`	application	no	always
`application-metrics`	application	no	always
`infrastructure-jobs`	infrastructure	no	always
`platform-dto`	platform	no	always

Runtime, from outside the workspace.

Crate	Requirement	Features	Optional	Only on
`async-trait`	`^0.1`	—	no	always
`axum`	`^0.7`	`multipart`	no	always
`chrono`	`^0.4`	`serde`	no	always
`serde`	`^1`	`derive`	no	always
`serde_json`	`^1`	—	no	always
`sqlx`	`^0.8`	`runtime-tokio`, `postgres`, `chrono`, `uuid`, `json`	no	always
`thiserror`	`^2`	—	no	always
`tokio`	`^1`	`full`	no	always
`tracing`	`^0.1`	—	no	always
`uuid`	`^1`	`v4`, `v7`, `serde`, `js`	no	always

Development. None.

Build. None.

Depended on by. Nothing in this workspace.

Signal flow — what reaches this crate, and what it reaches.

flowchart LR
  SELF["application-jobs"]
  SELF -->|runtime| n_application_core["application-core"]
  SELF -->|runtime| n_application_metrics["application-metrics"]
  SELF -->|runtime| n_infrastructure_jobs["infrastructure-jobs"]
  SELF -->|runtime| n_platform_dto["platform-dto"]
  classDef self fill:#1f883d,stroke:#1f883d,color:#fff;
  class SELF self;

Feature flags

No Cargo features are defined: every capability is unconditional, so no consumer can receive a half-wired crate.

Targets

Kind	Name	Source
lib	`application_jobs`	`src/lib.rs`
test	`pg_forge_jobs`	`tests/pg_forge_jobs.rs`

Error model

No public error type was detected: no public item declares a type named *Error, and no public signature returns one.

Operational characteristics

Property	Evidence
async public surface	yes
async runtime	yes
database access	yes
network I/O	yes
unsafe code	none detected
environment variables	yes

No unsafe block, unsafe fn, unsafe impl or unsafe trait was found by the parser anywhere in this crate's source.

Configuration

Variable	Read in
`CARGO_PKG_VERSION`	`src/lib.rs`

No workspace crate depends on this one.

Verification

Kind	Count
Unit tests	1
Integration tests	1
Examples	0
Doctests	0

Evidence by module. How often each public module is named by something executable.

Module	Tests	Examples	Consumers
`crate root`	1	0	0
`api`	1	0	0
`api::jobs_admin`	7	0	0
`services::jobs`	10	0	0

What the tests establish, by name:

migrate_pending_creates_jobs_table — tests/pg_forge_jobs.rs
test_module_migrations_non_empty — src/lib.rs

Documentation coverage

Measure	Documented	Total
Public items with rustdoc	11	25
Public modules with a `//!` block	3	4

pie showData
    title Public items with rustdoc
    "Documented" : 11
    "No rustdoc detected" : 14

Metrics

Metric	Value
Rust source files	5
Source lines	569
Code lines	413
Public API items	25
Public modules	4
Tests	2
Examples	0
Cargo features	0
Direct runtime dependencies	14
Workspace reverse dependencies	0

pie showData
    title Public API by kind
    "function" : 12
    "method" : 6
    "struct" : 7

pie showData
    title Rust source composition
    "Code" : 413
    "Blank or comment" : 156

Generation

Rendered by tools-corpus corpus readme from repository evidence alone, renderer schema 2, lexicon current. No model, network service or database was consulted. Regenerate with tools-corpus corpus readme --write; verify with --check.

What it is for

Capabilities

JobsModule

api (other)

api::jobs_admin (other)

CancelQuery

CleanupInput

CountQuery

DetailQuery

ListQuery

RetryFailedInput

services::jobs (other)

How to use it

Module structure

Public surface

Boundary

Where it sits

Dependencies

Feature flags

Targets

Error model

Operational characteristics

Configuration

Related capabilities

Verification

Documentation coverage

Metrics

Generation

`JobsModule`

`api (other)`

`api::jobs_admin (other)`

`CancelQuery`

`CleanupInput`

`CountQuery`

`DetailQuery`

`ListQuery`

`RetryFailedInput`

`services::jobs (other)`