> For the complete documentation index, see [llms.txt](https://docs.biobox.io/guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.biobox.io/guide/how-to/ask-biobox-with-claude/tools/list-delta-reports.md).

# list\_delta\_reports — List delta reports

List delta reports

List delta reports

## What it does

List every delta report the caller's org has — a delta report is a saved comparison that diffs two-or-more scoring reports (and/or models) anchored on the same entity, showing how targets and scores shift between runs.

**When to use:** the user asks "what delta reports / comparisons do we have?" or wants the full inventory; the user wants to compare scored runs and you need to find an existing delta report to read; you need the reportId(s) or modelId(s) a delta report spans, to drill into the underlying scores.

**When NOT to use:** you already have a deltaReportId and want that comparison's per-target diff / top movers (use get\_delta\_report); listing a single model's scoring reports rather than saved comparisons (use list\_reports); listing the models themselves (use list\_reasoning\_models / search\_models); reading the ranked scores of one report you've already chosen (use get\_report\_scores).

**Parameters:** none.

**Returns:** An object { deltaReports, count }. Each delta report has: deltaReportId (its identity — pass it to get\_delta\_report for the per-target diff, or get\_delta\_report\_target to drill into one target), displayName, description, type (the kind of delta), anchorObject (the entity the comparison is anchored on, { uuid, displayName }), models (the models it spans — each { modelId, displayName }, modelId → list\_reports / search\_models), reports (the scoring reports it compares — each { reportId, displayName }, reportId → get\_report\_scores / get\_evidence), dateCreated and dateUpdated. `count` is the number returned — this is the org's FULL delta-report inventory (it is not paginated or capped).

## Parameters

*No parameters.*

## Response

```ts
{
  deltaReports: Array<{
    deltaReportId: string;
    displayName: string;
    description: string | null;
    type: string | null;
    anchorObject: {
      uuid: string | null;
      displayName: string | null;
    } | null;
    models: Array<{
      modelId: string;
      displayName: string | null;
    }>;
    reports: Array<{
      reportId: string;
      displayName: string | null;
    }>;
    dateCreated: string | null;
    dateUpdated: string | null;
  }>;
  count: number;
}
```

## Example

```json
// list_delta_reports({})
{}
```

Response (arrays truncated):

```json
{
  "deltaReports": [
    {
      "deltaReportId": "XAQc6AFG_tUe1PfXsABtX",
      "displayName": "Neurodegenerative Target Prioritization",
      "description": "Evaluating scientific frameworks for neurodegenerative target prioritization",
      "type": "live-vs-archived",
      "anchorObject": {
        "uuid": "MONDO:0004976",
        "displayName": "amyotrophic lateral sclerosis"
      },
      "models": [
        {
          "modelId": "d3wyAtDLSewvY90zVcrAP",
          "displayName": "Neurodegenerative Target Prioritization 3"
        }
      ],
      "reports": [
        {
          "reportId": "pCfdy8OyuPKQmZp",
          "displayName": "ALS"
        },
        {
          "reportId": "SNV8xUkFBQz1Q4a",
          "displayName": "ALS"
        },
        {
          "reportId": "FExtbFGkakJWXTXcsOgzT",
          "displayName": "ALS"
        }
      ],
      "dateCreated": "2026-06-05T18:29:36.431Z",
      "dateUpdated": "2026-06-05T18:29:36.431Z"
    },
    {
      "deltaReportId": "jTldVYawI7TqO13hLcs8S",
      "displayName": "Neurodegenerative Target Prioritization",
      "description": "Understanding the impacts of pathway involvement on target prioritization",
      "type": "live-vs-archived",
      "anchorObject": {
        "uuid": "MONDO:0004976",
        "displayName": "amyotrophic lateral sclerosis"
      },
      "models": [
        {
          "modelId": "d3wyAtDLSewvY90zVcrAP",
          "displayName": "Neurodegenerative Target Prioritization 3"
        }
      ],
      "reports": [
        {
          "reportId": "3EIVH6mRrz3lQLu",
          "displayName": "ALS"
        },
        {
          "reportId": "pCfdy8OyuPKQmZp",
          "displayName": "ALS"
        },
        {
          "reportId": "FExtbFGkakJWXTXcsOgzT",
          "displayName": "ALS"
        }
      ],
      "dateCreated": "2026-06-08T20:25:21.465Z",
      "dateUpdated": "2026-06-08T20:25:21.465Z"
    },
    {
      "deltaReportId": "fJR7lymR5MioBl1bQXbQ6",
      "displayName": "Immune Target Prioritization",
      "description": "Comparing target prioritization strategies for psoriasis",
      "type": "live-vs-archived",
      "anchorObject": {
        "uuid": "EFO:0000676",
        "displayName": "psoriasis"
      },
      "models": [
        {
          "modelId": "Z96B9kKvWRL-TRbxnY0Dz",
          "displayName": "Immune Target Prioritization 2"
        }
      ],
      "reports": [
        {
          "reportId": "WF7fCzNcGwvmXLp",
          "displayName": "Psoriasis"
        },
        {
          "reportId": "xNfTnZSu-inSODqsesvr3",
          "displayName": "Psoriasis"
        }
      ],
      "dateCreated": "2026-06-29T14:47:11.879Z",
      "dateUpdated": "2026-06-29T14:47:11.879Z"
    }
  ],
  "count": 3
}
```