---
title: "Get pipeline execution status"
method: GET
path: "/pipeline/{session_id}/status"
tags: ["pipeline"]
---

# Get pipeline execution status

`GET /pipeline/{session_id}/status`

## Path parameters

- `session_id` string, required

## Response `200`

Pipeline status

- PipelineStatus
  - `session_id` string
  - `status` 'pending' | 'running' | 'completed' | 'failed' | 'cancelled' | 'cancelling'
  - `current_step` object, nullable
    - `name` string
    - `display_name` string
    - `started_at` string, date-time
    - `progress` object
      - `current` integer
      - `total` integer
      - `percent` integer
      - `message` string
    - `elapsed_seconds` integer
  - `completed_steps` object[]
    - `name` string
    - `display_name` string
    - `started_at` string, date-time
    - `completed_at` string, date-time
    - `duration_seconds` integer
    - `stats` object
  - `overall_progress` object
    - `current_step` integer
    - `total_steps` integer
    - `percent` integer
    - `estimated_remaining_seconds` integer, nullable
  - `preview_images` string[]
  - `can_cancel` boolean
  - `elapsed_seconds` integer
  - `created_at` string, date-time
  - `updated_at` string, date-time
  - `coverage` MaterialCoverage
    - `schema_version` string, required
    - `policy` 'strict' | 'allow_partial', required
    - `readiness_grade` 'complete' | 'complete_with_fallback' | 'partial' | 'not_evaluated', required
    - `target_count` integer, required
    - `prepared_count` integer, required
    - `predicted_count` integer, required
    - `usable_prediction_count` integer, required
    - `unknown_prediction_count` integer, required
    - `fallback_count` integer, required
    - `bound_count` integer, required
    - `unbound_count` integer, required
    - `prediction_coverage_ratio` number, required
    - `binding_coverage_ratio` number, required
    - `missing_prepared_prim_ids` string[], required
    - `missing_prediction_prim_ids` string[], required
    - `unknown_prim_ids` string[], required
    - `fallback_prim_ids` string[], required
    - `unbound_prim_ids` string[], required
    - `extra_prediction_prim_ids` string[], required
    - `warnings` string[], required

## Other responses

- `404` — Session not found

## Changes

- **2026-07-21** `1a8c0d4c92b5` — 1 info
  - added the optional property `coverage` to the response with the `200` status

[Change history](https://skmtc.dev/nvidia/apis/material-agent-service/changes/pipeline/:session_id/status/get.md)

---

[API](https://skmtc.dev/nvidia/apis/material-agent-service.md) · [All operations](https://skmtc.dev/nvidia/apis/material-agent-service/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/nvidia/material-agent-service/revisions/4fde0c1362b3/schema)