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GET
/
v1
/
workflows
/
evals
/
{eval_id}
from retab import Retab

client = Retab()

workflow_eval = client.workflows.evals.get(
    eval_id="wfnodeeval_hsLEQiM61ez9Piv147MWk",
)

print(workflow_eval.assertion.condition)
print(workflow_eval.schema_drift)

{
  "id": "wfnodeeval_hsLEQiM61ez9Piv147MWk",
  "workflow_id": "wf_abc123xyz",
  "target": { "type": "block", "block_id": "block_extract_invoice" },
  "source": {
    "type": "manual",
    "handle_inputs": {
      "input-document-0": {
        "type": "file",
        "document": {
          "id": "file_invoice_q1",
          "filename": "invoice.pdf",
          "mime_type": "application/pdf"
        }
      }
    }
  },
  "name": "Q1 invoice total",
  "assertion": {
    "id": "assert_xyz",
    "target": { "output_handle_id": "output-json-0", "path": "total" },
    "condition": { "kind": "equals", "expected": 1234.56 },
    "label": null
  },
  "schema_drift": "none",
  "schema_drift_detail": null,
  "validation_status": "valid",
  "validation_issues": [],
  "latest_run_summary": {
    "run_record_id": "wfnodeevalrun_abc123",
    "status": "completed",
    "outcome": "passed",
    "started_at": "2026-05-01T13:55:00Z",
    "completed_at": "2026-05-01T13:55:18Z",
    "duration_ms": 18221,
    "workflow_draft_fingerprint": "ddd95baadce6045f",
    "block_config_fingerprint": "0ff93ddc7cefcb42",
    "assertions_passed": 1,
    "assertions_failed": 0,
    "blocked_assertions": 0
  },
  "latest_passing_run_summary": { "...": "as above" },
  "latest_failing_run_summary": null,
  "created_at": "2026-04-08T14:22:26Z",
  "updated_at": "2026-04-08T14:27:52Z"
}
Fetch a single workflow eval by id. The response refreshes the eval’s validation_status and schema-drift state against the current workflow draft before returning, so the caller always sees the latest staleness. 
from retab import Retab

client = Retab()

workflow_eval = client.workflows.evals.get(
    eval_id="wfnodeeval_hsLEQiM61ez9Piv147MWk",
)

print(workflow_eval.assertion.condition)
print(workflow_eval.schema_drift)

{
  "id": "wfnodeeval_hsLEQiM61ez9Piv147MWk",
  "workflow_id": "wf_abc123xyz",
  "target": { "type": "block", "block_id": "block_extract_invoice" },
  "source": {
    "type": "manual",
    "handle_inputs": {
      "input-document-0": {
        "type": "file",
        "document": {
          "id": "file_invoice_q1",
          "filename": "invoice.pdf",
          "mime_type": "application/pdf"
        }
      }
    }
  },
  "name": "Q1 invoice total",
  "assertion": {
    "id": "assert_xyz",
    "target": { "output_handle_id": "output-json-0", "path": "total" },
    "condition": { "kind": "equals", "expected": 1234.56 },
    "label": null
  },
  "schema_drift": "none",
  "schema_drift_detail": null,
  "validation_status": "valid",
  "validation_issues": [],
  "latest_run_summary": {
    "run_record_id": "wfnodeevalrun_abc123",
    "status": "completed",
    "outcome": "passed",
    "started_at": "2026-05-01T13:55:00Z",
    "completed_at": "2026-05-01T13:55:18Z",
    "duration_ms": 18221,
    "workflow_draft_fingerprint": "ddd95baadce6045f",
    "block_config_fingerprint": "0ff93ddc7cefcb42",
    "assertions_passed": 1,
    "assertions_failed": 0,
    "blocked_assertions": 0
  },
  "latest_passing_run_summary": { "...": "as above" },
  "latest_failing_run_summary": null,
  "created_at": "2026-04-08T14:22:26Z",
  "updated_at": "2026-04-08T14:27:52Z"
}

Authorizations

​
Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Path Parameters

​
eval_id
string
required

Response

Successful Response

A saved workflow eval: a target block, an input source, and the assertion evaluated against its output.

​
id
string
required
​
workflow_id
string
required
​
target
WorkflowEvalBlockTarget · object
required

Public workflow-eval target.

The storage layer remains block-scoped today, but the API shape names the tested entity explicitly so workflow-level targets can be added later.

​
source
ManualWorkflowEvalSource · object
required
​
name
string | null
​
assertion
AssertionSpec · object

Block-eval assertion against one declared output handle.

target is the only supported shape: an output handle id and an optional relative path inside that handle's payload.

​
assertion_schema_dep
AssertionSchemaDep · object

Single-rule schema dependency for Level 2 drift detection.

​
assertion_drift_status
enum<string> | null
Available options:
valid,
drifted,
broken
​
schema_drift
enum<string>
default:unknown
Available options:
none,
partial,
drifted,
unknown
​
schema_drift_detail
string | null
​
freshness
ArtifactFreshness · object
​
drift
ArtifactDrift · object
​
validation_status
string
default:valid
​
validation_issues
any[]
​
latest_run_summary
LatestBlockEvalRunSummary · object

Summary of the most recent block-eval run.

Execution status and verdict outcome are exposed as separate fields. The summary is written on terminal-state transitions, so in practice status is one of completed | error | cancelled and outcome is populated when status == "completed".

​
latest_passing_run_summary
LatestBlockEvalRunSummary · object

Summary of the most recent block-eval run.

Execution status and verdict outcome are exposed as separate fields. The summary is written on terminal-state transitions, so in practice status is one of completed | error | cancelled and outcome is populated when status == "completed".

​
latest_failing_run_summary
LatestBlockEvalRunSummary · object

Summary of the most recent block-eval run.

Execution status and verdict outcome are exposed as separate fields. The summary is written on terminal-state transitions, so in practice status is one of completed | error | cancelled and outcome is populated when status == "completed".

​
created_at
string<date-time>

When the workflow eval was created

​
updated_at
string<date-time>

When the workflow eval was last updated