chp-adapter-jobs
Run any CHP capability as a polled background job. Built for heavy or
long-running capabilities — e.g. huggingface.generate_image (minutes on MPS) —
that outlive HTTP request timeouts.
How it works
submit runs the target capability via host.ainvoke inside a
ThreadPoolExecutor and returns a job_id immediately. The target runs to
completion server-side regardless of client timeouts, and — because the SQLite
evidence store is thread-safe — keeps its own full evidence chain. This
adapter emits only lightweight job-lifecycle events, never the target's payload
or result.
Capabilities
| Capability | Description |
|---|---|
chp.adapters.jobs.submit |
Submit {capability_id, payload}; returns a job_id. |
chp.adapters.jobs.status |
Poll lifecycle state: submitted / running / completed / failed + duration. |
chp.adapters.jobs.result |
Fetch a completed job's result data (ready: false while running). |
chp.adapters.jobs.list |
List all jobs and their state. |
Example: async image generation
// 1. submit — returns immediately
POST chp.adapters.jobs.submit
{ "capability_id": "chp.adapters.huggingface.generate_image",
"payload": { "prompt": "a serene mountain lake", "output_path": "/tmp/out.png" } }
// → { "job_id": "job_ab12…", "status": "submitted" }
// 2. poll
POST chp.adapters.jobs.status { "job_id": "job_ab12…" } // → running … completed
// 3. fetch result
POST chp.adapters.jobs.result { "job_id": "job_ab12…" }
// → { "ready": true, "success": true, "result": { "output_path": "/tmp/out.png", … } }
Config
| Field | Default | Meaning |
|---|---|---|
max_workers |
2 |
Thread pool size. |
allowed_capabilities |
None |
Allowlist of submittable capability ids (None = any). |
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